CN105429280A - Uninterruptable power supply system and method - Google Patents
Uninterruptable power supply system and method Download PDFInfo
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- CN105429280A CN105429280A CN201510496153.4A CN201510496153A CN105429280A CN 105429280 A CN105429280 A CN 105429280A CN 201510496153 A CN201510496153 A CN 201510496153A CN 105429280 A CN105429280 A CN 105429280A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
An uninterruptable power supply (UPS) system/method providing power line conditioning and power factor correction (PFC) that incorporates centralized battery backup energy storage architecture is disclosed. The system generally comprises an AC-DC power supply with active PFC (power factor correction) function, a battery transfer switch, an isolated battery charger placed between the utility power source and battery strings, battery strings connecting the battery charger and the battery transfer switch, EMI/Lightning circuitry that provides lighting / line surge protection as well noise suppression functions, and a controller monitoring the quality of the utility power source. Uninterruptable power for data centers is achieved in this context via use of the battery strings, battery transfer switch, battery charger, and controller system configuration.; Disclosed methods associated with this system generally permit the UPS to operate in a distributed fashion in support of computing systems within data centers.
Description
Technical field
The present invention relates to a kind of UPS and Supply Method thereof, particularly relate to a kind of UPS and the Supply Method thereof that are applicable to mass computing data center.
Background technology
In recent years, due to application demands such as a large amount of voice, data and films, the flow of the Internet (Internet) is that multiple increases.In order to process transmission and the storage of these a large amount of density datas, therefore there is concept as novel in high in the clouds calculating and large-scale data center etc.These concepts can guarantee that user shares the expense of infrastructure and the cost of reduction personal user.Separately, other new ideas as " ammeter computing (MeterComputing) " and " with receiving with paying (PayAsYouGo) " and realization, also allow user use computational resource, and do not need to pay idle computational resource.
Due to the development of the Information technologies such as share service, application and platform, and increase the shared demand to IT infrastructure " large-scale or huge data center ".Large-scale/huge data center is in order to support the application of " high in the clouds calculating " at present, all faces and is devoted to the problems such as workout cost, flexibility, expandability, efficiency, utilization rate, vacancy rate and management.And in response under the prerequisite for large-scale data center increase in demand.Meanwhile, industry has started the data center architecture developing modularization/case type.The development on the basis of modularization/case type data center is a distributional concept, comprises being manufactured by factory modularization and in order to process and the infrastructure component providing data storing.These modular solutions are all design in an optimized way, and reach reliable, efficient, can repeat and the object such as operation optimization.The data center of modularization/case type can provide standardization, reduces costs, expandability, flexibility and be applied to the method for formation/expansion large-scale data center fast.And the data center of a typical modularization/case type comprises a UPS (UPSUninterruptablePowerSystem), frame, cooling system and information technoloy equipment etc.
UPS is a kind of electric equipment, and being used to provides Emergency Power when the input power (being generally civil power) of data center loses efficacy, to carry out start to critical loads (example: data center).Again, UPS is different from emergency electrical system (such as flywheel, fuel cell and generator etc.) or stand-by generator, mainly provides by the energy being such as stored in battery or flywheel " input electric power source interrupt " transient protection.Separately, due to BACKUP TIME usual shorter (only a few minutes were by ten minutes), but be enough to start stand-by power supply, or carry out normal shutdown protection load and store its critical data.A UPS is generally used for data center, computer and/or telecommunication apparatus, with start in time there is the power breakdown do not expected, to avoid serious business and data degradation.
Summary of the invention
The object of the present invention is to provide a kind of UPS and the Supply Method thereof that are applicable to mass computing data center.
UPS of the present invention connects with an AC power, and this UPS comprises an electric power controller, a battery strings, a cell switch, and a power supply unit.This AC power is charged to this battery strings via a battery charger.This cell switch is connected with this AC power and this battery strings.This power supply unit is connected with this cell switch, with the ability according to this AC power, accepts from this AC power or the electric power from this battery strings, and this power supply unit provides corresponding electric power to a load.When this AC power is available, this electric power controller controls this cell switch and the electric power from this AC power is converted to this power supply unit, otherwise when this AC power is unavailable, this electric power controller controls this cell switch and the electric power from this battery strings is converted to this power supply unit.
In certain embodiments, this power supply unit provides a direct current power to this load.
In certain embodiments, this power supply unit comprises a boost converter be connected with this cell switch, and wherein, this boost converter provides an electric power to a DC-to-DC converter.
In certain embodiments, also comprise an electric power selection apparatus be connected with this electric power controller and this power supply unit, wherein, this electric power controller controls this electric power selection apparatus and select this AC power from least one AC power cord and a stand-by power supply.
In certain embodiments, this stand-by power supply is a generator.
In certain embodiments, also comprise one and be optionally connected between this AC power and this power supply unit, with the by-pass switch of shunt this cell switch, this battery strings and this battery charger.
In certain embodiments, one is also comprised across a buffer circuit of this cell switch, the electric arc produced when it suppresses this cell switch to switch.
In certain embodiments, also comprise one and supply energy to this battery strings to supply electrical power to the energy of this load.
In certain embodiments, this energy is selected from by a group of solar panels, fuel cell, flywheel and alternative source structure.
In addition, a kind of UPS Supply Method of the present invention, be used in a UPS, the method comprises the state being monitored an AC power by an electric power controller, when this AC power is available, drive a cell switch that this AC power is connected to a power supply unit, when this AC power is unavailable, drive this cell switch that one battery strings is connected to this power supply unit, via a battery charger, this battery strings is charged with this AC power, and provide a DC power supply to a load via this power supply unit.
In certain embodiments, also comprise and convert the electric power from this AC power to direct current from interchange by this power supply unit.
In certain embodiments, this actuation step making this AC power be connected with this power supply unit comprises is selected this AC power by the electric power selection apparatus that this electric power controller controls from least one AC power cord and a stand-by power supply by one.
In certain embodiments, this actuation step making this AC power be connected with this power supply unit comprises via a branch switch this cell switch, this battery strings and this battery charger along separate routes.
In certain embodiments, also comprise and supply energy to this battery strings via an energy.
In certain embodiments, this energy is selected from by a group of solar panels, fuel cell, flywheel and alternative source structure.
Useful effect of the present invention is: because large-scale/huge data center needs to have lower cost, high efficiency, high extendibility, low package count, is easy to battery storage capacity, the low maintenance cost optimized, and is easy to the UPS that operates.The present invention solves foregoing problems by realizing a kind of UPS being applied to data center's critical loads redundant, and preserves the characteristic of all two conversion UPSs.The most important thing is, the framework that the data center high in the clouds that the present invention is compatible with existing modularization/case type calculates.The present invention discloses and replaces DC-AC converter of the prior art by interchange+DC power supply, and provides plate to carry pressurizer half constant voltage dc source to realize equipment protection.This framework simplifies power between normal Standby and redundant and switches operation, and decreases many hardware spendings relevant to prior art, also promotes its efficiency.
Accompanying drawing explanation
Fig. 1 is a schematic diagram, and computer and the commercial manufacturers association (ComputerBusinessEquipmentManufacturersAssociation of prior art are described; CBEMA) performance curve.
Fig. 2 is a schematic diagram, and an embodiment of prior art is described.
Fig. 3 is a schematic diagram, and one embodiment of the invention are described.
Fig. 4 is a flow chart, and the method flow of this embodiment is described.
Fig. 5 is a schematic diagram, and another embodiment of the present invention is described.
Fig. 6 is a flow chart, and the method flow of this embodiment is described.
Fig. 7 is a schematic diagram, and another embodiment of the present invention is described.
Fig. 8 is a flow chart, and the method flow of this embodiment is described.
Fig. 9 is an Organization Chart, and the embodiment of the data center of modularization/case type of the present invention is described.
Figure 10 is an Organization Chart, and the embodiment of the data center of modularization/case type of the present invention is described.
Figure 11 is an Organization Chart, and the embodiment of the data center of modularization/case type of the present invention is described.
Figure 12 is a schematic diagram, and another embodiment of the present invention is described.
Figure 13 is a schematic diagram, and another embodiment of the present invention is described.
Figure 14 is a schematic diagram, and another embodiment of the present invention is described.
Figure 15 is a schematic diagram, and the embodiment of a boost converter is described.
Figure 16 is a schematic diagram, and the current path Ib at backup dc-battery mode boost converter is described.
Figure 17 is a schematic diagram, and the preferred embodiment of the exemplary power factor correction boost converter of the present invention one is described.
Figure 18 is a schematic diagram, and the preferred embodiment of the exemplary no bridge type boost converter of the present invention one is described.
Figure 19 is a schematic diagram, and the preferred embodiment of the exemplary Single-phase PFC boost converter of the present invention one is described.
Figure 20 is a schematic diagram, and the preferred embodiment of the present invention one exemplary polymorphic Vienna (Vienna) PFC boost transducer is described.
Figure 21 is a schematic diagram, and the preferred embodiment of the exemplary staggered no bridge type PFC boost transducer of the present invention one is described.
Figure 22 is a schematic diagram, and the preferred embodiment of the exemplary polymorphic no bridge type PFC boost transducer of the present invention one is described.
Figure 23 is a schematic diagram, the preferred embodiment of the exemplary anti-phase bust-boost converter of the present invention one is described, according to the voltage of the battery used in battery strings, this topology can effectively and efficiently matching battery string for DC-to-DC converter with exchange+the requirement of DC power supply.
Figure 24 is a schematic diagram, and the preferred embodiment of the exemplary noninverting bust-boost converter of the present invention one is described, this converter topologies utilizes different phase control (P1/P2), determines the transfer characteristic of transducer further.
Figure 25 is a schematic diagram, and integrated alternative energy source hybrid power system is described.
Figure 26 is a schematic diagram, and integrated alternative energy source hybrid power system is described.
Figure 27 is a schematic diagram, illustrates that the standby system of 1+1 in one and one frame 0940 configures.
Figure 28 is a schematic diagram, illustrates that the standby system of 1+1 in one and one frame 0940 configures.
Figure 29 is a schematic diagram, and a 1+1 standby system is described.
Figure 30 is a schematic diagram, and a 1+1 standby system is described.
Figure 31 is a schematic diagram, and the operator scheme of " the centralized battery backup server of 1+1 " structure is described.
Figure 32 is a schematic diagram, and the operator scheme of " the centralized battery backup server of 1+1 " structure is described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
The invention provides three major functions as described below.
Electric adjustment
AC-DC power supply is designed to prevent " Interference from the power supply wire " (as met CBEMA curve requirement described in Fig. 1 step (0100)) and " AC wave shape distortion " (power circuit harmonic wave/voltage fluctuation/ac power frequency change).Electromagnetic interference
(EMIElectroMagnetic interference)/ anti-lightning circuit provides anti-lightning/line surge protection and noise suppression function.
Normally run because Interference from the power supply wire affects IT load, therefore in recent years, IT vendor is under the situation for of short duration Interference from the power supply wire, and the general AC-DC power supply supply meeting such as EN61000-3-2 and IEC62040-3 power breakdown demand that uses is to provide power.Similarly, stipulated by computer and commercial manufacturers association at first, and be usually called computer and commercial manufacturers association (ComputerBusinessEquipmentManufacturersAssociation by industry; CBEMA) application annotations and comments of curve (Fig. 1 (0100)), describe a minimum tolerance efficacy curve of electric power interference in single-phase information technoloy equipment power supply unit.
UPS
Battery charger and the controller of battery pack, cell switch, isolation provide " uninterruptedly " function of supplying power.When AC power lost efficacy, cell switch will be connected to dc-battery string to provide continuing power to IT load according to control order.
Centralized battery
This system concentrates battery storage amount in redundant or Multiple system.One central battery framework can provide the stored energy demand identical with a distributed battery systems, reduces number of batteries significantly simultaneously.
Although the present invention can realize in many different forms, in the drawings and this by the of the present invention detailed preferred embodiment be described by understand present exposure should be regarded as principle of the present invention example instead of in order to by the present invention widely viewpoint be restricted to described by embodiment.
Although the present invention has multiple multi-form embodiment to show in the accompanying drawings, and by preferred embodiment of the present invention for description detailed in this article, the disclosure should be regarded as the example of principle of the present invention and work as and can not limit scope of the invention process with this.
Many innovative teachings of subject application describe with special with reference to current preferred embodiment, and wherein these innovative teachings are applied advantageously in the particular problem of a UPS supply system and method.It should be understood, however, that the present embodiment is an example of these innovative teachings many favourable purposes wherein.In the ordinary course of things, the statement in the specification of subject application does not need the invention limiting any various request protection.And some statements may be applicable to some inventive features, but be not suitable for other inventive features.
Do not limit changing method
The present invention will discuss the topological structure of various boost converter, and some of them are preferred according to the train of thought of application.Display is comprised MOSFET electric switch by the topological structure of these transducers, but the present invention uses equipment scope and not subject to the limits, and can comprise any type of electric switch, such as (but being not limited to) bipolar transistor, MOSFET and IGBT etc.
Do not limit control system
When realizing electric power controller described herein, the present invention can utilize various structure.Many preferably inventive embodiments can utilize the controlling mechanism of a calculator, wherein computer system perform from an entity, non-momentary, machine instruction that the media of embodied on computer readable read.
System survey 0300
Of the present invention one preferably exemplary system embodiment be described in Fig. 3 (0300); in this application context; comprised the combination of a DC-to-DC converter 0391 by the protected equipment 0390 that ups system is served, it supplies electrical power to one computer server/load 0392 or some other loads.UPS comprises an electric power controller 0310, it can comprise a calculation element 0311 (such as a microprocessor, microcontroller, Digital Logic, or other forms of digital computer), it performs the machine instruction read from a computer fetch medium 0312.This electric power controller 0310 is in order to coordinate cell switch 0320, battery charger 0330, battery strings 0340, and the running of an interchange+DC power supply 0350 is supplied as by an AC power 0360.
In normal running, the state of the AC power 0360 (being generally an alternating current government business supplier) that electric power controller 0310 senses, and cell switch 0320 is configured to provide AC power to interchange+direct current (AC+DC) power supply unit 0350.Interchange+DC power supply 0350 is configured to accept to exchange input or DC high voltage input (100V-240V) and processes this input to provide direct current to a DC-to-DC converter 0352 with a boost converter 0351, makes to provide lower direct voltage input (10V-24V) to this protected equipment 0390.Then, the DC-to-DC converter 0391 in protected equipment 0390 converts this lower DC input voitage to direct voltage required in computer server/load 0392.
Under the normal condition of stable AC power 0360 input, battery charger 0330 guarantees that battery strings 0340 is suitably maintained the state at a full charging.The direct voltage that this battery strings 0340 is configured to provide one to be equivalent to AC power 0360, and therefore allow the battery charge controller 0339 being contained in battery charger 0330 via to charge expeditiously.
When AC power 0360 lost efficacy for some reason, electric power controller 0310 detects this voltage failure, and make cell switch 0320 be switched to battery strings 0340 from AC power 0360, and when this power-fail, provide direct current to interchange+DC power supply 0350.Specifically be, in the case, be detected the power fails in AC power 0360, in fact may be slight, such as detect instantly in a flash or brownout, also or some other exception, wherein AC power 0360 still provides not at the acceptable electric power of quality standard.And in these situations, whether no matter effective from the electric power of AC power 0360, battery charger 0330 is still set to charge to battery strings 0340.But the electric power of supply interchange+DC power supply mainly obtains from battery strings 0340, instead of AC power 0360.
This structure eliminates and the demand changed to alternating current about direct current in prior art battery backup scheme, thus simplifies battery charger 0330, battery strings 0340, and the embodiment of interchange+DC power supply 0350.
Also further, because battery strings 0340 has high voltage compared to battery pack 0240 (Fig. 2 (0240)), therefore battery strings 0340 is also more efficient than conventional art in charging operation.In other words, the battery strings 0340 of one series connection is charged and battery configuration in parallel for comparison one (Fig. 2 (0240)) is needed less electric current (when a higher voltage), therefore can reduce the nextport hardware component NextPort realizing this function.In addition, in power-fail transfer (failover) situation, the boost converter 0351 be used in AC+DC power supply unit 0350 allows moment to be switched to battery strings 0340 from AC power 0360.Moreover compared with the direct current with high current used in the conventional technology to a-c transducer, higher battery strings 0340 voltage also allows interchange+DC power supply 0350 have higher efficiency.
Method general introduction 0400
Consult Fig. 3 (0300) and Fig. 4 (0400), UPS using method of the present invention is associated with a group method, and comprise following steps:
(1) with the state 0401 of an electric power controller monitoring from the line voltage distribution of an AC power;
(2) judge AC supply voltage whether in predetermined scope and quality, if so, carry out step (3), if not, then carry out step (5) 0402;
(3) AC power is connected to an interchange+DC power supply 0403;
(4) rectification AC power electric power and rechargeable battery string, and get back to step (1) to continue the state 0404 of the line voltage distribution monitoring AC power;
(5) will exchange+DC power supply from AC power disconnect 0405; And
(6) battery strings is connected to interchange+DC power supply, and carries out step (1) 0406.
Be familiar with this area those skilled in the art these method steps of understanding can be increased or construction and be not limited to teaching of the present invention again.This universal method can increase by various components described here, to produce the multiple inventive embodiments comprising this global design and describe
Back-up system Gai Shu – AC power 0500
Fig. 5 (0500) describes another preferably demonstration system embodiment of the present invention, can comprise an AC power 0560 in some preferable system embodiments, it comprises several power supply and such as exchanges public electric wire electric power 0561 and an AC power for subsequent use such as a generator 0562 or other power sources.Use an AC power selector 0570 to allow the interchange input selection control line started according to the electric power controller 0510 of the power supply input condition detected according to, at AC power 0560 option 0561 that these are different, switch between 0562.
Alternative mean general introduction 0600
Fig. 3 (0300), 5 (0500) and Fig. 6 (0600) UPS of the present invention another embodiment method be associated is described, and comprise following steps:
(1) with the state 0601 of an electric power controller monitoring from the line voltage distribution of an AC power;
(2) judge AC supply voltage whether in predetermined scope and quality, if so, carry out step (3), if not, then carry out step (6) 0602;
(3) stand-by generator is disconnected 0603 from interchange+DC power supply;
(4) AC power is connected to one interchange+DC power supply 0604;
(5) rectification AC power electric power and rechargeable battery string, and get back to step (1) 0605;
(6) AC power is disconnected 0606 from interchange+DC power supply;
(7) judge stand-by generator voltage whether in predetermined scope and quality, if so, carry out step (8), if not, then carry out step (10) 0607;
(8) battery strings is disconnected 0608 from interchange+DC power supply;
(9) stand-by generator is connected to interchange+DC power supply, and carries out step (12) 0609;
(10) stand-by generator is disconnected 0610 from interchange+DC power supply;
(11) battery strings is connected to one interchange+DC power supply 0611; And
(12) stand-by generator is connected to battery strings charger, and carries out step (1) 0612.
Be familiar with this area those skilled in the art these method steps of understanding can not be limited to teaching of the present invention and be increased or construction again.This universal method can increase by various components described here, to produce the multiple inventive embodiments comprising this global design and describe.
Back-up system Gai Shu – bypass 0700
Fig. 7 (0700) describes another preferably demonstration system embodiment of the present invention, part preferably can comprise bypass switch 0780 in system embodiment, it allows at cell switch 0720, battery charger 0730, and/or battery strings 0740 performs maintenance function.Under closedown by-pass switch 0780 start, these components are by along separate routes and can be removed, test, or must not be interrupted the overall operation of interchange+DC power supply 0750 and protected equipment 0790 by replacing.
Alternative mean general introduction 0800
The system that Fig. 3 (0300), Fig. 5 (0500) and Fig. 7 (0700) describe can be relevant with the other method that Fig. 8 describes, and comprise following steps:
(1) with the state 0801 of an electric power controller monitoring from the line voltage distribution of an AC power;
(2) judge AC supply voltage whether in predetermined scope and quality, if not, then carry out step (6) 0802;
(3) stand-by generator is disconnected 0803 from interchange+DC power supply;
(4) AC power is connected to one interchange+DC power supply 0804;
(5) rectification AC power electric power and rechargeable battery string, and carry out step (1) 0805;
(6) AC power is disconnected 0806 from interchange+DC power supply;
(7) battery strings is connected to one interchange+DC power supply 0807;
(8) stand-by generator 0808 is started;
(9) state 0809 of stand-by generator is monitored;
(10) judge stand-by generator voltage whether in predetermined scope and quality, if not, then carry out step (8) 0810;
(11) battery strings is disconnected 0811 from interchange+DC power supply;
(12) stand-by generator is connected to one interchange+DC power supply 0812; And
(13) stand-by generator is connected to battery strings charger, and carries out step (1) 0813.
Be familiar with this area those skilled in the art these method steps of understanding can be increased or construction and be not limited to teaching of the present invention again.This universal method can increase by various components described here, to produce the multiple inventive embodiments comprising this global design and describe.
Describes similar in the method and Fig. 6 (0600), when in power fails, stand-by generator may not start, it provides the method for startup stand-by generator.In addition, the method using stand-by generator battery strings to be charged is it provided in outage.
General System illustrates 0900-1100
The calcspar that Fig. 9 (0900) to Figure 11 (1100) describes illustrates exemplary operation and the structure of large-scale/huge data center 0901.This data center is made up of the data center 0910,0920,0930 of several modularization/case type.In the data center of each modularization/case type, several modular rack is also referred to as server rack 0940, and 0950,0960 can a large amount of server 1205 (see Figure 12) of storehouse.Consult the battery strings 1240 of Figure 12 (1200) in the data center of modularization/case type again and battery charger 1230 is arranged on same frame with cell switch 0970 by with server, or be installed in an independent frame.AC power 0902 is three-phase star (WYE) structure.One phase voltage and the neutral line are assigned to each frame 0940,0950,0960 to form a balanced load.Similar configuration can be used in the data center 0910,0920 of modularization/case type, 0930 install.In each frame 0940,0950, have several in order to maintain frame 0940,0950 in 0960, between 0960 one balanced loaded server 1205.
Distributed UPS/power regulator 1200
Figure 12 (1200) illustrates one of a server rack 0940 (Fig. 9 (0900) to Figure 11 (1100)) in the data center 0910 (Fig. 9 (0900) to Figure 11 (1100)) of the one modularization/case type distributed UPS/power regulator with centralized battery 1201 energy for subsequent use storing construction.In the present embodiment, modular data center 0910 comprises multiple server rack 0940,0950,0960, and each server rack comprises multiple server 1205.Each server 1205 comprises AC-DC power supply supply 1250 and a server/computer mainboard 1209.AC-DC power supply supply 1250 is in order to accept to exchange input (85VAC-240VAC, 40-75 hertz) or direct current input
and via two series connection and the power conversion stage comprising a boost converter 1251 and a DC-to-DC converter 1252 in this input of inter-process, to convert the input of this electric power to a DC bus 1259 (DC voltage-stabilizing 10-14V or half constant voltage DC bus 10-14VDC ± 10%), and by transformation result feed-in one server/computer mainboard 1209.Server/computer mainboard comprises DC-to-DC converter 1291, and 1292,1293.DC-to-DC converter 1291,1292, input voltage is transformed into a lower constant voltage DC level from 10-14VDC by 1293, such as 1.2V (volt), 3.3V, 5V, ± 12VDC are to IT load (microprocessor 1294, internal memory 1295, analog circuit 1296 etc.)
Normal running
Battery charger preset between
between a voltage quasi position.In normal operation condition, server exchanges input 1258 and receives electric power from utility network alternating current source 1261, then transmits electric power to interchange-DC power supply 1250.With this understanding, AC-DC power supply supply is operated in interchange input pattern, and interchange input 1258 is converted to DC bus 1259 (DC bus voltage 10-14VDC) voltage, then powers to server/computer mainboard 1209.During this period, battery strings 1240 via battery charger 1230 charge to by battery charger preset between
between a voltage quasi position.
Power fails operates
When a utility network AC power 1261 lost efficacy, controller 1210 senses utility network AC power 1261 and drops to and exceed its normal range (NR) and (drop to lower than one first threshold values 90V for the specified AC-input voltage of a 120V between a half period in office, if or preassigned time and may including but not limited to ration the power supply, have a power failure, voltage collapse, surge, in the situations such as unsteadiness, RMS voltage is lower than a second round of 100V).Controller 1210 will make cell switch 1220 be switched to battery back-up mode, make battery strings 1240 be connected to AC-DC power supply supply 1250.Therefore, controller 1210 makes generator change over switch 1270 be connected to stand-by generator 1262, and disconnects with utility network AC power 1261.During battery back up, AC-DC power supply supply 1250 is operated in direct current input pattern, and it is from the battery strings 1240 (voltage range of precharge
) acquisition direct voltage, and convert a lower DC bus voltage 1259 (10-14VDC) to, then power to server/computer mainboard 1209.
In battery back-up mode, when utility network AC power 1261 drop to exceed its specified scope time, controller 1210 can control cell switch 1220 half ac cycle (being less than 8 milliseconds) period switch to battery back-up mode.Generator change over switch 1270 needs to spend a few minutes be separated from utility network AC power 1261 and be connected to stand-by generator 1262.The switching sequence of generator change over switch 1270 must be connected to stand-by generator 1262 by making it before battery strings 1240 exhausts the energy of provisioning server/computer motherboard 1209.
Consult Figure 12 (1200), under stand-by generator pattern, cell switch 1220 keeps being connected with battery strings 1240, AC-DC power supply supply 1250 is operated in direct current input pattern and server electric power is transferred to battery charger 1230 again to battery strings 1240 from stand-by generator 1262, be connected with AC-DC power supply supply 1250 again, and under server 1205 will be operated in direct current input pattern.Alternately, when this stand-by generator, cell switch 1220 can disconnect with battery strings 1240 and switch back to and be connected with utility network AC power, and makes AC-DC power supply supply 1250 operate in interchange input pattern.In this case, the electric power of server is transferred to cell switch 1220 from stand-by generator 1262, and generator change over switch 1270 is connected to AC-DC power supply supply 1250.In sum, under stand-by generator pattern, cell switch 1220 can be in interchange or DC mode is also powered to server 1205.
When utility network AC power 1261 gets back to normal state, controller 1210 can by cell switch 1220, generator change over switch 1270 switches back utility network connection mode simultaneously, and server 1205 will be got back to and will be connected with utility network AC power 1261, to operate in the interchange input pattern of being powered by utility network AC power 1261.
AC-DC power supply supply 1250 inside comprises two power stages: boost converter 1251 and DC-to-DC converter 1252.Boost converter 1251 provides power factor correcting initiatively to produce a power factor in theory more than 95%.Active power factor also reduces total harmonic wave and verify check AC-input voltage significantly.Boost converter 1251 can in interchange input or direct current input service.DC-to-DC converter 1252 changes its input direct voltage into a lower DC bus voltage 1259 (DC voltage-stabilizing 10-14V or half voltage stabilizing 10-14VDC ± 10%), then feed-in server/computer mainboard 1209.
Server 1205 is made up of AC-DC power supply supply 1250 and mainboard 1209.Mainboard has two parts: DC-to-DC converter 1291,1292, and 1293 and IT load microprocessor 1294, internal memory 1295, analog circuit 1296 etc.Mainboard is via DC-to-DC converter 1291,1292,1293 obtain DC bus voltage 1259 (10-14VDC) and convert a low voltage (0.9VDC-5.0VDC or other direct voltages of specifying) to power to IT load microprocessor 1294, internal memory 1295, analog circuit 1296 etc.Mainboard 1209IT load can be a single equipment or several equipment according to contextual application demand.
Bypass operation
By-pass switch 1280 and cell switch 1220 are connected in parallel, and provide two functions:
I () safeguards: in this application, when battery strings 1240 and cell switch 1220 need to carry out periodic maintenance or battery testing, and by-pass switch 1280 is (bypass) cell switch 1220 and battery strings 1240 along separate routes.
(ii) redundant transmission: by-pass switch 1280 for cell switch 1220 as a redundant change over switch, to prevent Single Point of Faliure, and can increase the reliability of system.
Be positioned at the buffer circuit 1221 crossing over cell switch 1220 two ends and can be used as an acceptor of energy, the electric arc that during to suppress to be switched to AC mode from DC mode, cell switch 1220 produces.
Electromagnetic interference/anti-lightning circuit 1207 provides illumination/line surge protection for function of suppressing noise.It comprises Electromagnetic interference filter, acceptor of energy and inhibitor.
Features/functionality
The centralized energy content of battery of UPS/electric governor that Figure 12 (1200) describes stores distributed architecture and has three difference in functionalitys:
Electric governor
AC-DC power supply supply 1250 is designed to meet " Interference from the power supply wire " (meeting CBEMA curve requirement) and " AC wave shape distortion " (power line harmonic wave/voltage fluctuation/ac power frequency change) demand.Electromagnetic interference/anti-lightning circuit 1207 is as lightning/electric wire surge protection and noise suppressing function.
Uninterrupted electric power
Uninterrupted electric supply function is provided by battery strings 1240, cell switch 1220, battery charger 1230 and controller 1210.When AC power lost efficacy, cell switch 1220 can disconnect from utility source and be connected to battery strings 1240 to provide continuous power to IT load according to controller 1210 order.
Centralized battery
As Figure 12 (1200)) describe, system concentrates battery storage 1240 to provide non-firm power to redundant or Multiple system.This centralized battery structure can provide the energy storage requirement identical with a distributed battery systems, reduces number of batteries significantly simultaneously.
Exchange input reference
Except as otherwise noted, described AC network power input voltage be one by a frequency 45 hertz to 500 hertz and the single-phase or three-phase system that forms of the sine wave of a RMS (roommeansquare) value 85 volts to 480 volts.AC network power supply is configured to a star (WYE) and connects or triangle connection.System as shown in Fig. 9 (0900) to Figure 11 (1100), AC power 0902 is a star configuration, has a single-phase or three-phase voltage and the neutral line distributes to each frame 0940,0950,0960 to form a balanced load.The data center 0910,0920,0930 of modularization/case type can use a similar distribution.Each frame 0940,0950, have multiple server 0941,0942 in 0960, it is configured to frame 0940, and 0950, the balanced load between 0960, to maintain the three-phase alternating current system of a balance.Same, AC power 0902 can be configured to a triangular system (not shown); Power voltage line 480VAC (relative phase) can be assigned to the data center 0910 of modularization/case type, 0920,0930, for the data center 0910 of each modularization/case type, 0920,0930, each phase voltage 240VAC (relative neutral point) can be sent to frame 0940,0950,0960.This load balancing techniques is identical with in star like arrangement.
Steady state power path 1300
Under Figure 13 (1300) is described in the stable state normal operation that server 1205 supplied by AC power, flow of power is through path.AC power provides two current paths.IS path is main current path, and it provides input electric power to AC-DC power supply supply 1250 via generator change over switch 1270 and cell switch 1220.IC path is through the path of generator change over switch 1270 and battery charger 1230 rechargeable battery string 1240.
Power failure electrical path 1400
Figure 14 (1400) illustrates the electrical path at uninterrupted (dc-battery backup) power state of outage.When utility power lost efficacy, cell switch 1220 was connected with battery strings 1240, and generator change over switch 1270 is connected to stand-by generator 1262.Server 1205 arrives AC-DC power supply supply 1250 by current path Ib via cell switch 1220, accepts the electric power from dc-battery string 1240.Under this pattern, stand-by generator 1262 provides electric power that battery strings 1240 is charged via battery charger 1230, and supplies electrical power to AC-DC power supply supply 1250 via current path Ig.
Basic boost converter framework 1500
Figure 15 (1500) is the Basic Profile figure of a boost converter.One typical AC-DC power supply supply has the boost converter of design in inside to prevent the interference (Fig. 1 (0100) CBEMA curve) of AC wave shape distortion (harmonic wave/voltage fluctuation/ac power frequency change) and power line.Boost converter can also provide active power factor correction, typically produces one more than 95% theoretic power factor, and significantly reduces the total harmonic wave produced by power supply unit and load thereof.
Basic boost converter 1600 under battery backup mode
Figure 16 (1600) is described in the boost converter current path Ib under dc-battery backup mode:
At any time, boost converter becomes one with diode D1 and D4 On current, and the DC-To-DC boost converter that diode D2 and D3 is fed bias voltage and passes through without any electric current.Under this operation, no matter be that diode D1 and D2 must be properly arranged with processing power consumption in interchange or DC operation pattern.Novel part is, in dc-battery backup mode, battery strings 1240 can utilize existing AC-DC power supply supply 1250 boost converter 1251 as a DC-To-DC boost converter, and the voltage changed needed for its output voltage to IT load, this gets rid of another outside boost converter.This arrangement can save cost, the whole efficiency of space and raising system.
Boost converter topology 1700-2400
Figure 17 (1700) to Figure 24 (2400) describes can as boost converter 1251 for the various different boost converter topology in this invention.These different boost converter topology can be designed to the demand meeting " Interference from the power supply wire " (meeting CBEMA curve) and AC wave shape distortion (change of harmonic wave/voltage fluctuation/AC power cord).The various boost converter topology described comprise:
Figure 17 (1700) is a schematic diagram, and exemplary power factor correcting (PFCPowerFactorCorrection) boost converter that can be used in some better inventive embodiments is described.The boost converter described in Figure 17 to 24 can provide power factor correcting (PFC) in input stage, has low-down line harmonic, and provides close to consistent power factor.Nearly all AC-DC power supply supply for information technoloy equipment uses the boost converter topology with active power factor correction;
Figure 18 (1800) is a schematic diagram, illustrates and can be used in some exemplary no bridge type boost converters preferably in inventive embodiments;
Figure 19 (1900) is a schematic diagram, illustrates and can be used in some exemplary Single-phase PFC boost converters preferably in inventive embodiments;
Figure 20 (2000) is a schematic diagram, and exemplary polymorphic Vienna (Vienna) PFC boost transducer that can be used in some better inventive embodiments is described;
Figure 21 (2100) is a schematic diagram, illustrates and can be used in some exemplary staggered no bridge type PFC boost transducers preferably in inventive embodiments;
Figure 22 (2200) is a schematic diagram, illustrates and can be used in some exemplary polymorphic no bridge type PFC boost transducers preferably in inventive embodiments;
Figure 23 (2300) is a schematic diagram, explanation can be used in some exemplary anti-phase bust-boost converters preferably in inventive embodiments, according to the cell voltage used in battery strings, this topology makes battery strings effectively meet the requirement of the DC-to-DC converter in interchange+DC power supply; And
Figure 24 (2400) is a schematic diagram, explanation can be used in some exemplary noninverting bust-boost converters preferably in inventive embodiments, and this converter topologies utilizes different phase control (P1/P2) to judge the transfer characteristic of transducer.
This area those skilled in the art can to use other boost converter topology in the present invention by understanding, and these exemplary circuit topological structures are not limited to invention scope required for protection.
The various boosting that Figure 17 (1700) to Figure 24 (2400) describes and bust-boost converter and/or can be incorporated into wherein with the DC-to-DC converter incorporating aspects of AC-DC power supply supply, to form the conversion method of an integration, and then eliminate the traditional DC-AC conversion specified by prior art ups system.The integration of this assembly improves the component count that overall system efficiency reduces overall system architecture simultaneously.
There is the hybrid system 2500-2600 of integrated alternative energy source
Figure 25 (2500) and Figure 26 (2600) describes a hybrid system with integrated alternative energy source.As shown in Figure 25 (2500), " distributed " UPS/electric governor with centralized battery 1201 can be as shown in figure 26, with solar panels 2611 and solar panels DC-to-DC converter 2612, fuel cell 2621, fuel cell DC-direct current transducer 2622, and flywheel 2631 combines.All alternative energy source solar panels 2611, fuel cell 2621, and flywheel 2631 can via solar panels DC-to-DC converter 2612 and fuel cell DC-direct current transducer 2622 storage power in battery strings 1240.At AC power failure/dc-battery Status of Backups, solar panels 2611, fuel cell 2621, and flywheel 2631 will supply electrical power to server 1205 and rechargeable battery string 1240.On the other hand, when server 1205 is operated in direct current input pattern, and cell switch 1220 is when battery mode connects the input of battery strings 1240 to server 1205, and battery strings 1240 can be used as main input power.In this operating mode, generator change over switch 1270 is in utility mode, charge, and utility network AC power is as stand-by power supply via charger 1230 pairs of battery strings 1240.When the voltage that battery strings 1240 voltage is specified lower than it, cell switch 1220 will be switched to utility alternating current source and server 1205 will be powered by utility network AC power 1261.
Redundant configuration 1+1 redundant 2700-2800
Consult Fig. 9 (0900) to Figure 11 (1100), frame 0940 may comprise multiple server to provide the demand of different computer disposal.The 1+1 standby system configuration of Figure 27 and Figure 28 (2800) description one in frame 0940.In this configuration, " there is distributed UPS (not the power-off)/electric governor of battery back energy storage " 1202 and server 1205 system be that the identical system that forms with by " having the distributed UPS/ electric governor of battery back energy storage " 1203 and server 1206 is in parallel.Fall when utility network AC power 1261 and its normal range of operation (when a 120V exchanges one first threshold values that a nominal input voltage half period in office is brought down below 90V, if or RMS voltage for the preassigned time and may including but not limited to rationing the power supply, have a power failure, in the situation such as voltage collapse, surge and unsteadiness lower than a second round of 100V), the battery strings 1240 comprising N number of battery strings provides backup electric power to server 1205.Similarly, fall its normal operation range when utility network AC power 1261, battery strings 1241 comprises N number of battery strings and provides backup energy to server 1206.The configuration packet of Figure 27 and Figure 28 contains 2N battery strings to provide 1+1 redundant server stand-by power supply.Each " has the distributed UPS/ electric governor of battery back energy storage " and performs the operator scheme identical with Figure 12.
The centralized redundant 2900-3000 of 1+1 redundant
Figure 29 (2900) and Figure 30 (3000) describes one and performs the 1+1 standby system with the 1+1 standby system identical function of Figure 27 (2700) and Figure 28 (2800), but has a centralized battery system.Its battery strings quantity is 1N but not 2N in Figure 27 (2700) and Figure 28 (2800).This system provides the redundant function identical with the system of Figure 27 (2700) and Figure 28 (2800), but has used 1N battery less, has lacked a stand-by alternator and a few controller.Battery strings 1240 obtains from AC power 1261 by battery charger 1230,1231 under steady state conditions, a reactor, the charging both 1263.
The centralized redundant operation 3100-3200 of 1+1 redundant
Figure 31 (3100) and Figure 32 (3200) describes the operator scheme of " having the 1+1 redundant server of centralized battery " structure of Figure 29 (2900) and Figure 30 (3000).Suppose that AC power 1261 loses electric power.When this occurs, the controller 1210 of Figure 29 (2900) and Figure 30 (3000) senses server 1205 input voltage lower than its specified scope, and send an instruction immediately to cell switch 1220, make to operate in dc-battery pattern and disconnect with utility network AC power 1261.Therefore, battery strings 1240 supplies electric power to server 1205 via current path Ib.Meanwhile, controller 1210 indicates generator change over switch 1270 disconnect with the AC power 1261 lost efficacy and be connected to stand-by generator 1262.
Battery strings 1240 is by battery charger 1230 (carry out self generator 1262 and via current path Ig) charging.Meanwhile, they are also charged via current path Ic by battery charger 1231 (being derived from the B phase of AC power 1263).In this case, battery strings 1240 supplies electrical power to server 1205, and is charged from two backup AC power: stand-by generator 1262 and AC power B phase 1263.
The controller of Figure 29 (2900) and Figure 30 (3000) in Figure 31 (3100) and 32 (3200) for simplicity and clearly show current path and be purposely omitted.
Preferable system embodiment is made a summary
The present invention's better exemplary system embodiment discloses the multiple change of the basic theme of structure, but the UPS provider system of a broad sense comprises:
(a) electric power controller;
(b) cell switch;
(c) battery charger;
(d) battery strings; And
(e) interchange+DC power supply;
Wherein
Electric power controller also comprises an induction input and and controls to export;
Cell switch also comprise a control inputs, jointly export, first switch input, and second switch input;
Interchange+DC power supply also comprises an electric power input and is connected with a load output;
The electric power input of interchange+DC power supply is electrically connected to the shared output of cell switch;
First switch input of cell switch is electrically connected to this battery strings;
The second switch input of cell switch is electrically connected to a utility network AC power;
The induction input of electric power controller is electrically connected to utility network AC power;
The control of electric power controller exports the control inputs being electrically connected to cell switch;
When the electric power from utility network AC power can use, the control of this electric power controller exports and is configured to start this cell switch, utility network AC power is made to be electrically connected to the electric power input of interchange+DC power supply, and when the electric power from utility network AC power can not use, make battery strings be electrically connected to the electric power input of interchange+DC power supply;
Battery charger also comprises a utility network AC power input, a generator input, and the load of an electric isolution exports;
The electric power input of battery charger is electrically connected to utility network AC power;
The generator input of battery charger is electrically connected to a substitute electric power;
The load of battery charger exports and is electrically connected to battery strings; With
The electric power that battery charger receives from utility network AC power or substitute electric power with response battery strings charging.
This General System summary can increase by various components described herein to produce the various inventive embodiments comprising global design and describe.
Preferred embodiment method is made a summary
The present invention preferably exemplary method embodiment discloses the various changes realizing basic theme, but can be turned to a UPS supply method by broad sense, and the method and a UPS provider system work together, and comprise:
(a) electric power controller;
(b) cell switch;
(c) battery charger;
(d) battery strings; And
(e) interchange+DC power supply;
Wherein
Electric power controller also comprises an induction input and and controls to export;
Cell switch also comprise a control inputs, jointly export, first switch input, and second switch input;
Interchange+DC power supply also comprises an electric power input and is connected with a load output;
The electric power input of interchange+DC power supply is the shared output being electrically connected to cell switch;
First switch input of cell switch is electrically connected to this battery strings;
The second switch input of cell switch is electrically connected to utility network AC power;
The induction input of electric power controller is electrically connected to utility network AC power;
The control of electric power controller exports the control inputs being electrically connected to cell switch;
When the electric power from utility network AC power can use, the control of this electric power controller exports and is configured to start this cell switch, utility network AC power is made to be electrically connected to interchange+DC power supply, and when the electric power from utility network AC power can not use, make battery strings be electrically connected to interchange+DC power supply;
Battery charger also comprises a utility network AC power input, a generator input, and the load of an electric isolution exports;
The electric power input of battery charger is electrically connected to utility network AC power;
The generator input of battery charger is electrically connected to a substitute electric power;
It is be electrically connected to battery strings that the load of battery charger exports; With
The electric power that battery charger receives from utility network AC power or substitute electric power with response battery strings charging.
Wherein the method step comprises:
(1) by electric power controller monitoring utility network AC power;
(2) if utility network AC power provides electric power at present, then activate cell switch and make utility network AC power be connected to interchange+DC power supply;
(3) if utility network AC power does not provide electric power at present, then activate cell switch and make battery strings be connected to interchange+DC power supply; And
(4) battery charger charges to battery strings with the electric power taking from utility network AC power or substitute electric power.
Be familiar with this area those skilled in the art can be increased understanding these method steps or construction and be not limited to teaching of the present invention again.Universal method described herein can increase various components, to produce the multiple inventive embodiments comprising this global design and describe.
Method step described in the present embodiment all comes from Fig. 4 (0400).But these steps can use the alternative method as shown in Fig. 6 (0600) and Fig. 8 (0800) and increase, and do not lose teaching of the present invention.
The preferred embodiment rev of Sys substituted
The present invention can be implemented by with multiple preferably alternative form, and some of them can comprise following structure:
● a distributed not power-off/electric governor with the centralized battery system for data center, comprises following assembly:
■ AC-DC power supply supply.One AC-DC power supply supply can be identical input connector interchange or direct current input pattern under operate.Under the operating state of AC mode, the scope of AC-input voltage is 85Vrms-265Vrms, 40-75Hz, or from
direct current input range.Under the operating state of DC mode, power supply unit can be designed as and can meet any DC input voitage scope, as long as it can operate the AC-input voltage scope at 85Vrms-265Vrms, 40-75Hz.This power supply unit has two inner power conversion stage: (1) first order is a boost converter that can provide active power factor correction, and (2) second level is a DC-to-DC converter, this boosting can be exported the direct voltage bus-bar of the 10-14VDC that be converted to a lower rectification or half rectification (its rated voltage ± 10%) by it, and supplies this IT load.This power supply unit is designed to meet CBEMA curve and exchange wave mode distortion requirement (harmonic wave, voltage fluctuation and ac power frequency change), for applying to electric adjustment.
■ cell switch.One cell switch can connect utility network AC power or direct current battery power extremely aforesaid power supply unit.Under general operating state, this cell switch connects the input of utility network AC power to power supply unit; When losing efficacy in this grid alternating current source, this cell switch connected this dc-battery to power supply unit and disconnected from this grid alternating current source.This cell switch is controlled by the instruction that following controller sends.
■ controller.The quality of the public input electric power of this controller monitoring.During utility network AC interruptions, when the utility network AC power of self-disabling disconnects, control order cell switch is connected to reserve battery.In addition, controller also order stand-by generator change over switch is connected to generator, gives data center to provide stand-by power supply function.When utility network AC power recovers normal, controller can be connected to utility mode by order cell switch.
The isolated battery charger of ■.Battery charger is arranged between utility network AC power and battery strings, and charges to battery strings under normal interchange operating state.When AC power lost efficacy, battery charger can continue to charge from stand-by generator to battery strings.Should be come from security consideration for the insulation request of battery charger, when battery charger loses efficacy, it can provide the buffer action between utility network AC power and battery strings.
■ battery strings.Under normal interchange common state, battery strings can be charged.Battery strings can be discharged and be provided electric power to give the power supply unit of aforesaid data center, to guarantee that, when utility network AC power lost efficacy, UPS still supplies should IT load.
■ surge protection.EMI/ lightning circuit provides lightning/line surge protection and noise suppression function/power adjustment feature.
● in the framework of aforementioned system: at 1+1, N+1, a N+2 ... to in the standby system of N+N, battery strings is concentrated to reduce number of batteries and simultaneously keeping system redundant target.
● in the framework of aforementioned system, this framework is applicable to the IT load that comprises microprocessor, storage device, hard disk, internal memory or other combination in any.
● in the framework of aforementioned system, the buffer circuit of cross-over connection cell switch is used as an acceptor of energy.Interrupt from DC mode when cell switch and get back to utility mode, this buffer circuit can suppress the voltage electric arc across battery change-over circuit.
● in the framework of aforementioned system, bypass switch is connected across cell switch.This static switch can be machinery or an electronic installation.This static switch provides two kinds of functions: (1), when cell switch and battery carry out safeguarding or testing, it can shunt battery switch; And (2) are when cell switch fault, it can be used as another cell switch, to promote the reliability of system.
● in the framework of aforementioned system, this AC-input voltage connects with star (WYE) structural form.
● in the framework of aforementioned system, this AC-input voltage is triangular structure.
● in the framework of aforementioned system, this AC-input voltage is that a uniline is to the phase voltage configured by a three-phase electrical power system.
● in the framework of aforementioned system, the AC-input voltage beyond this is aforementioned can from 85Vrms to 480Vrms.This DC battery voltage can be any being no more than
voltage.
● in the framework of aforementioned system, the AC-input voltage beyond this is aforementioned one has the sine wave of frequency between 45Hz to 500Hz.
● in the framework of aforementioned system, this system can with alternative energy source: solar panels, fuel cell, flywheel and other alternative energy sources combine.
● in the framework of aforementioned system, battery strings can be selected from a chemical group, and it is selected from: lead acid accumulator, lithium iron, NI-G, sodium sulphur, vanadium oxide reduction, NI-G, alkaline battery.
● in the framework of aforementioned system, this AC-DC power supply supply can when system be in dc-battery standby mode, as one direct current-DC power supply.
● in the framework of aforementioned system, this AC-DC power supply supply can operate under AC mode or DC mode, and arbitrary pattern can operate under the same input connecting interchange-DC power supply certainly.
● in the framework of aforementioned system, battery strings can be designed to the integrated system shared by all distributed systems, or battery strings can be designed to the distributed system integrated with each power supply unit.
● in the framework of aforementioned system, this battery charger can be charged by the concentrated battery strings of multiple alternating current power supply charging under normal operating conditions.And in power fails event, battery strings can be charged by its other AC power (as stand-by generator) connected, this AC power is in order to provide battery strings and load one additionally and the power supply of not power-off.
The change aspect of system/method
The present invention discloses the multiple change of basic framework.But illustrate, previous embodiment does not present all possible range of application, but only in almost unlimited possibility, disclose section Example.
This fundamental system and method can be increased by multiple additional embodiments, include but not limited to:
● in one embodiment, this utility power comprises a three-phase triangle power supply.
● in one embodiment, this utility power comprises a star-like power supply of three-phase.
● in one embodiment, it is be electrically connected on an arithmetic unit that this load exports.
● in one embodiment, it is the calculation server being electrically connected on a networking that this load exports.
● in one embodiment, this cell switch also comprises the buffer circuit that is configured to an acceptor of energy.
● in one embodiment, this cell switch also comprises bypass switch.
● in one embodiment, input voltage is the phase voltage of a single-phase wire pair one three-phase power supply system configuration to interchange+DC power supply.
● in one embodiment, this system also comprises an energy source, and this energy source is selected from the group be made up of solar panels, fuel cell, flywheel and alternative energy source.
● in one embodiment, this battery strings is selected from the chemical group be made up of plumbic acid, iron lithium, NI-G, sodium sulphur, vanadium oxide reduction, nickel-cadmium cell and alkaline battery.
Be familiar with this area those skilled in the art and can understand the embodiment that may also have other according to the combination of the assembly of foregoing summary teaching.
General computer fetch medium
In numerous alternative embodiment, the present invention can be implemented as a computer program, to apply to a computerized computing system.Being familiar with this area those skilled in the art can gently intelligiblely be, the program that definition defines function by the present invention can be write as by with any suitable program language, and computer can be transferred in a variety of forms, its form is including but not limited to following content: (a) permanent storage is in the information of not reproducible Storage Media (memory storage as read-only in read-only memory or disc etc.); B () can be stored in the information of reproducible Storage Media (as floppy disk and hard disk) with revising; And/or (c) transfers to the information of computer by medium of communications such as such as LAN, telephone network or public networks (as the Internet).When delivering the computer-readable instruction implementing method of the present invention, this computer-readable media can present multiple alternate embodiment of the present invention.
Claims (15)
1. a UPS, connects with an AC power; It is characterized in that:
This UPS comprises:
One electric power controller;
One battery strings, is charged via a battery charger by this AC power;
One cell switch, is connected with this AC power and this battery strings; And
One power supply unit, is connected with this cell switch, with the ability according to this AC power, accepts from this AC power or the electric power from this battery strings, and this power supply unit provides corresponding electric power to a load,
Wherein, when this AC power is available, this electric power controller controls this cell switch and the electric power from this AC power is converted to this power supply unit, otherwise, when this AC power is unavailable, this electric power controller controls this cell switch and the electric power from this battery strings is converted to this power supply unit.
2. UPS according to claim 1, is characterized in that: this power supply unit provides a direct current power to this load.
3. UPS according to claim 2, is characterized in that: this power supply unit comprises a boost converter be connected with this cell switch, and wherein, this boost converter provides an electric power to a DC-to-DC converter.
4. UPS according to claim 1, it is characterized in that: this UPS also comprises an electric power selection apparatus be connected with this electric power controller and this power supply unit, wherein, this electric power controller controls this electric power selection apparatus and select this AC power from least one AC power cord and a stand-by power supply.
5. UPS according to claim 4, is characterized in that: this stand-by power supply is a generator.
6. UPS according to claim 1, it is characterized in that: this UPS also comprises bypass switch, it is optionally connected between this AC power and this power supply unit, with shunt this cell switch, this battery strings and this battery charger.
7. UPS according to claim 1, is characterized in that: this UPS also comprises one across a buffer circuit of this cell switch, the electric arc produced when it suppresses this cell switch to switch.
8. UPS according to claim 1, is characterized in that: this UPS also comprises one and supplies energy to this battery strings to supply electrical power to the energy of this load.
9. UPS according to claim 8, is characterized in that: this energy is selected from the group by solar panels, fuel cell, flywheel and alternative source structure.
10. a UPS Supply Method, is used in a UPS, it is characterized in that: the method comprises:
A state of an AC power is monitored by an electric power controller;
When this AC power is available, drive a cell switch that this AC power is connected to a power supply unit;
When this AC power is unavailable, drive this cell switch that one battery strings is connected to this power supply unit;
This battery strings is charged via a battery charger with this AC power; And
There is provided a DC power supply to a load via this power supply unit.
11. UPS Supply Methods according to claim 10, is characterized in that: the method also comprises and converts the electric power from this AC power to direct current from interchange by this power supply unit.
12. UPS Supply Methods according to claim 10, is characterized in that: the actuation step that this AC power is connected with this power supply unit comprises:
This AC power is selected by the electric power selection apparatus that this electric power controller controls from least one AC power cord and a stand-by power supply by one.
13. UPS Supply Methods according to claim 10, is characterized in that: the actuation step that this AC power is connected with this power supply unit comprises:
Via bypass switch this cell switch, this battery strings and this battery charger along separate routes.
14. UPS Supply Methods according to claim 10, is characterized in that: the method also comprises: supply energy to this battery strings via an energy.
15. UPS Supply Methods according to claim 14, is characterized in that: this energy is selected from the group by solar panels, fuel cell, flywheel and alternative source structure.
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| Application Number | Priority Date | Filing Date | Title |
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| US14/461,110 US9047076B1 (en) | 2013-12-31 | 2014-08-15 | Uninterruptable power supply system and method |
| US14/461110 | 2014-08-15 |
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| CN105429280A true CN105429280A (en) | 2016-03-23 |
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| US11171507B2 (en) | 2017-12-22 | 2021-11-09 | Litech Laboratories, Inc. | Connection of battery system to electrical distribution bus |
| TWI750432B (en) * | 2017-12-22 | 2021-12-21 | 美商立泰克實驗室公司 | Backup system for power supply unit providing power to load via distribution bus |
| US11695293B2 (en) | 2017-12-22 | 2023-07-04 | Litech Laboratories, Llc | Power system |
| TWI685179B (en) * | 2019-01-03 | 2020-02-11 | 台達電子工業股份有限公司 | power supply system |
| TWI693780B (en) * | 2019-06-03 | 2020-05-11 | 緯穎科技服務股份有限公司 | Control method for power supply system and power supply system |
| US11855483B2 (en) | 2019-07-01 | 2023-12-26 | Nissin Electric Co., Ltd. | Uninterruptible power supply device |
| TWI694653B (en) * | 2019-09-04 | 2020-05-21 | 台達電子工業股份有限公司 | Dc uninterruptible power supply apparatus with bidirectional protection function |
| CN113629848A (en) * | 2021-07-27 | 2021-11-09 | 北京精密机电控制设备研究所 | Anti-interference rapid integrated main and standby power supply automatic switching system |
| CN113629848B (en) * | 2021-07-27 | 2024-07-23 | 北京精密机电控制设备研究所 | Anti-interference fast integrated main and standby power supply automatic switching system |
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