CN104865537B - A kind of intelligent power aging method - Google Patents
A kind of intelligent power aging method Download PDFInfo
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- CN104865537B CN104865537B CN201510290501.2A CN201510290501A CN104865537B CN 104865537 B CN104865537 B CN 104865537B CN 201510290501 A CN201510290501 A CN 201510290501A CN 104865537 B CN104865537 B CN 104865537B
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Abstract
The present invention relates to power electronics detection technique field, more particularly to a kind of intelligent power aging method comprises the following steps：Step 1, input voltage Operational Timelines and load running timetable in the controller；Step 2, in the case where being aging power supply without input voltage and zero load, controller obtains the rating blocks for being aging power supply；Step 3, in the case where being aging power supply and having input voltage and zero load, controller sends a command to switch unit, accesses relevant voltage；Step 4, in the case where being aging plant-grid connection load and having input voltage, it is aging power supply analog subscriber environment and cuts load of different nature stage by stage, controller obtains the status information B that power supply is aging under load condition, and whether judgement is aging power supply normal.Under intelligent measurement high voltage of the present invention, low-voltage and normal voltage, the ability born different loads ability and adapt to different user environment of power supply.
Description
Technical field
The present invention relates to power electronics detection technique field, more particularly to a kind of intelligent power aging method.
Background technology
Power supply is the device for converting chemical energy into electric energy.The size of power, electric current and voltage whether stablize and
It is all the standard for judging a power supply stability that whether frequency, which is stablized,.Power source aging test is the inspection that must be carried out before power supply dispatches from the factory
It tests, is tested by power source aging, can accelerate to examine stability of the power supply during client terminal use.Power source aging is one
The lossless screening test technology that kind can reject product initial failure, simulates the test environment under the conditions of a kind of high temperature hostile
Long-time aging is carried out to high-performance power supply, to improve Product Safety, stability and the technological process of production of reliability.Mesh
Before, power source aging experiment is usually to be concentrated in together by many power supplys for needing aging through centrally connected power supply, while makes it one
High temperature in the environment of a closing to keep constant, and pass through energy-recuperation system and return the power for the electrical source consumption being aging
It receives.Existing power source aging method is inputted using constant pressure, to being detected with loaded power supply.This is asked there are following
Topic：1st, during actual electricity consumption, due to node on load busbar provides in power grid reactive power consume with load it is idle
Balance can not reached between power, and equalization point does not have disturbance suppression and maintains the ability of load busbar voltage, voltage
It is present with the phenomenon that unstable, can be relatively low so as to cause peak times of power consumption voltage, electricity consumption low peak period voltage can be higher.It is however existing
Power source aging method be mainly detected under constant pressure input condition, voltage can not be detected and be under high pressure and low voltage situations electric
The ability to bear in source.2nd, since in actual electricity consumption, the variation of voltage is more complicated, existing power source aging device can not detect electricity
Product-derived is aging the endurance of power supply when being converted between high-low voltage and rated voltage.
The content of the invention
The technical problems to be solved by the invention are：In the case of network voltage shakiness, the prior art can not detect electricity
The ability to bear in source.
In order to solve this problem, the present invention provides a kind of intelligent power aging method, comprises the following steps：
Step 1, input voltage Operational Timelines and load running timetable in the controller, wherein voltage be high voltage,
Low-voltage and normal voltage；
Step 2, in the case where being aging power supply without input voltage and zero load, controller acquisition is aging the specified of power supply
Information, whether judgement is aging power supply normal, if normally, controller can store the rating blocks for being aging power supply, and enter
In next step, it is if abnormal, it can alarm and determine to be aging power supply unqualified；
Step 3, in the case where being aging power supply and having input voltage and zero load, according to voltage Operational Timelines, controller
Close commands are sent to the switch unit of control high voltage, are aging power input high voltage.Controller is obtained under light condition
The status information A of power supply is aging, it is whether normal that judgement is aging power supply.Low-voltage and normal voltage situation and so on；
Step 4, be aging plant-grid connection load and in the case of having input voltage, according to load running timetable and by
The rating blocks of aging power supply first determine the load capacity of access load.Then controller sends close commands and is loaded to control
Switch unit, be aging plant-grid connection load, controller, which obtains, is aging the status information B of power supply under load condition, judge
Whether normal it is aging power supply.
Beneficial effects of the present invention are：Since power grid is often unstable, it may appear that the situation of high voltage or low-voltage, and
The prior art is mainly detected under constant pressure input condition, can not be detected voltage and is in holding for power supply under high pressure and low voltage situations
By ability.Before input voltage or load, the rating blocks of power supply are first aging with controller acquisition, pass through the volume of acquisition
Determine information and compare with being aging the rating blocks that power supply is demarcated above, if roughly the same, it is normal to be aging power supply, otherwise
It is abnormal.Then, for the present invention in different time sections high input voltage and low-voltage, the unstable situation of simulating grid passes through control
Device processed controls switch unit, and wherein controller generally comprises microcontroller, communication unit and storage unit, microcontroller when
Between perform, if to specified time section, will the automated execution if sentences, and closure signal is sent to phase by communication unit
The switch unit answered, other switch units disconnect, and otherwise perform else sentences.So to high voltage, low-voltage and normal voltage
Input carries out the division of period, and in the case of unloaded and loaded, ageing management obtains being aging the state letter of power supply
A and status information B is ceased, by the way that status information A and status information B are compared with being aging the parameter request of power supply, if
In value range, then it is normal to be aging power supply, otherwise abnormal.Finally, at times under high voltage or low-voltage into
Row power source aging detects, and detects to be aging the ability to bear of power supply.
Preferably, the load described in step 1 is capacitive load, inductive load and rectified load.Due in actual use
In electricity, have the load that such as computer, fluorescent lamp etc. are different, in order to meet different loading demands, detection in this case by
The load capacity of aging power supply so the output terminal for being aging power supply accesses a variety of loads, and is controlled by controller and switched
Unit, realization are aging power supply and access load, the ability to bear under high pressure or low pressure in different time sections.
Preferably, the rating blocks described in step 2 are rated power.Rated power refers to when electrical appliance works normally
Power.Its value is multiplied by rated current for the rated voltage of electrical appliance.If the actual power of electrical appliance is more than rated power, use
Electric appliance may damage；If actual power is less than rated power, (P is real<P volumes), then electrical appliance is unable to operate normally.For this purpose, pass through
Rated power is observed, can judge to be aging the state of power supply.
Preferably, the status information A and B that are aging power supply described in step 3 and step 4 include output voltage, electricity
Stream, frequency and temperature.Due to being aging power supply by high temperature, high-low voltage or normal voltage and different loads environment
Test, is detected for being aging the ability to bear of electronic component of power source internal, and output voltage in the standard detected
Whether stablize with frequency, mainly see power supply to voltage or frequency waveform whether distortion.Due in the case of a high temperature, mainly seeing to temperature
The harsher electronic component of degree condition, is damaged if there is electronic component is affected by temperature, then this temperature will be set
For critical-temperature, if it exceeds this temperature, controller will alarm and out of service.
Preferably, the switch unit described in step 3 and step 4 is relay.Since relay is electric drive switch,
It can realize the on-off action in the present invention, while controller transmits a signal to relay, when alternating current passes through relay, after
The movable conducting strip of electric appliance will be attracted to a switch contact, realize the closure of switch, access high-low voltage or access is negative
It carries.Meanwhile if current vanishes, then switch contact is left in active conductive sector-meeting, so as to off voltage and the access of load.
Preferably, power supply is aging as ups power or EPS emergency power supplies.Same power source aging method, suitable for various
The ageing management of power supply.
Preferably, the scope of ups power output voltage is 220V ± 1%, and the scope of frequency is 50HZ ± 5%, the model of temperature
It encloses for 70 DEG C of ＜.Ups power is uninterruptible power supply, and mainly the alternating current of power grid is circulated by the rectifier of AC/DC conversion
DC current is changed to, alternating current is then converted direct current by the DC/AC inverters converted again.Voltage stabilizing, frequency stabilization are special
Property is the most basic characteristic of ups power, and therefore when judging the ability to bear of ups power, to detect the parameter of these characteristics is
The no requirement for meeting ups power.Since line voltage is 220V, in allowable range of error, the output waveform of voltage is undistorted,
The scope for providing output voltage is 220V ± 1%.Meanwhile the frequency of alternating current is 50HZ, in the range of error permission, in UPS electricity
Under the frequency of oscillation effect of converter in source, when output frequency is equal to 50HZ, input frequency is equal to output frequency, is
50HZ.When frequency is more than 50HZ, output frequency 50HZ.So the frequency range of qualified ups power is 50HZ ± 5%.Meanwhile
Since the critical-temperature of electronic component in ups power is 70 DEG C, once more than this temperature, ups power will damage, so setting
The scope of constant temperature degree is 70 DEG C of ＜.
Specific embodiment
Embodiment one wherein be aging power supply as ups power, realized and be in high voltage, low-voltage and normally in voltage
In the case of voltage, intelligent power aging method comprises the following steps：
Step 1, plant-grid connection will be aging first into controller, and input the volume being aging in the specification of power supply
Determine power and parameter, such as input voltage Operational Timelines and load running timetable in the controller, wherein voltage is high electricity
Pressure, low-voltage and normal voltage.
After plant-grid connection controller is aging, aging operation controller will be read by RS232 communication interfaces to be aging
The rated power of power supply, then aging run controller and according to circumstances automatically select the input electricity being properly connected with being aging power supply
Pressure and the output loading being suitably connected with being aging power supply.Input, output data are first stored and are not connected at this time, subsequently
Three kinds of situations of connecting test point：1st, in the case of being aging power supply without input voltage and zero load；2nd, being aging power supply has input electricity
In the case of pressure and zero load；3rd, in the case of being aging plant-grid connection load and having input voltage.
Step 2, in the case of power supply is aging without input voltage and zero load, Aging control device is connect by RS232 communications
It mouthful obtaining and to be aging the rating blocks of power supply, wherein rating blocks are rated power, and whether judgement is aging power supply normal, if
Normally, controller can store the rating blocks for being aging power supply, and into next step, if abnormal, can alarm and determine quilt
Aging power supply is unqualified.
Step 3, in the case where being aging power supply and having input voltage and zero load, according to voltage Operational Timelines, aging control
Device processed sends close commands to the switch unit for controlling high voltage, to being aging power input high voltage.To being aging power supply
Aging control device obtains the status information A that power supply is aging under light condition in the case of high input voltage, according to the state of acquisition
Information A is compared automatically with normal parameter, and whether judgement is aging power supply normal.If normally entered in next step, if abnormal,
It can alarm and determine to be aging power supply unqualified.Low-voltage and normal voltage situation and so on.
Step 4, be aging power supply have input voltage and access load in the case of, according to load running timetable and by
The rating blocks of aging power supply determine the load capacity of access load.Close commands are sent by Aging control device to bear to controlling
The switch unit of load, is aging plant-grid connection load, and Aging control device obtains the status information that power supply is aging under load condition
Whether normal B with normal parameter contrast judgement is aging power supply according to the information B of acquisition.If normally entered in next step, if
It is abnormal, it can alarm and determine to be aging power supply unqualified.
Wherein load capacity is definite, exactly according to the UPS capacity communicated with being aging power supply, then passes through control
Device control processed is corresponding to load access.Such as：UPS is 10KVA, electric current=UPS capacity * 0.8/220, electric current 36A, and load is every
Road is 5A, just accesses the load of 7 tunnels.
Ups power in embodiment one is simply introduced, ups power be for China Power Grids environment and network monitoring and
Network system, medical system etc. generate the reliability requirement of power supply, in overcoming, large computer network system concentrate
The problem of power supply grid environment is increasingly severe caused by power supply station.Ups power system is made of five parts：Main road, bypass, battery
Power supply input circuits are waited, carry out the rectifier of AC/DC conversion（REC）, the inverter of progress DC/AC conversion（INV）, inversion and side
Road output switching circuit and energy storage battery.The voltage stabilizing function of its system is typically to be completed by rectifier, and rectifying device uses
Silicon-controlled or high-frequency switching rectifier, itself having the function of can be according to the variation control output amplitude of dispatch from foreign news agency, so as to work as dispatch from foreign news agency
, it can be achieved that the rectified voltage that output amplitude is basically unchanged when changing.Purification function is completed by energy-storage battery, due to rectification
Device cannot eliminate transient pulse interference, and there are still disturbing pulses for the voltage after rectification.Energy-storage battery, which removes, can store the straight energy of direct current
Function outside, just as having connect a bulk container capacitor for rectifier, the size of equivalent capacity amount is held with energy-storage battery
It is directly proportional to measure size.Since the voltage at its both ends of the energy-storage function of capacitance cannot be mutated, that is, capacitor is make use of to pulse
Smoothness properties eliminate impulse disturbances, play purification function, the also referred to as shielding to interference.The stabilization of frequency is then by converter
It completes, frequency stability depends on the degree of stability of the frequency of oscillation of converter.
More than parameter is to be aging the parameter that power supply need to be tested, and power information is obtained by the test of Aging control device,
It is compared with normal value, so that it is determined that whether be aging power supply qualified.
It is analyzed below for related experiment：
（1）In the case that UPS capacity is certain, different voltages and load are inputted, environment temperature is 50 DEG C.
Taking the capacity of ups power, alternating current is divided into normal inversion and malfunction for 40KVA, inputs different voltages and load,
Temperature, output voltage and the output frequency of ups power are observed, the results are shown in Table 1：
Table 1
By 1 gained of table, this experiment high input voltage, low-voltage and normal voltage, UPS temperature are basically stable at 50 DEG C of left sides
The right side, internal electronic component work normally in the temperature.Meanwhile when alternating current is in normal inverter mode, no matter height is inputted
Voltage, low-voltage or normal voltage, output voltage is all for 220V ± 1%, frequency 50HZ ± 5%, when alternating current is in malfunction,
Ups power is powered, and ensures the stabilization of output voltage and output frequency in certain time.Ups power in experiment is qualified, tool
There are voltage stabilizing, wen-frequency characteristics.
（2）The input voltage of ups power is under high voltage, different UPS capacity, and environment temperature is 50 DEG C.
Take the capacity of ups power：10KVA, 20KVA, 40KVA, 60KVA, alternating current is divided into normal inversion and malfunction, defeated
Enter high voltage for 261V, observe temperature, output voltage and the output frequency of ups power, the results are shown in Table 2：
Table 2
By 2 gained of table, this Germicidal efficacy UPS capacity and the relation of its stability, UPS temperature are basically stable at 50 DEG C of left sides
The right side, internal electronic component work normally in the temperature.Meanwhile when alternating current is in normal inverter mode, no matter UPS capacity
Size, output voltage are all 220V ± 1%, and frequency 50HZ ± 5%, when alternating current is in malfunction, ups power is powered, and is protected
Demonstrate,prove the stabilization of output voltage and output frequency in certain time.UPS capacity can determine the load capacity of load, not influence the steady of power supply
Qualitative, the ups power in experiment is qualified, has voltage stabilizing, wen-frequency characteristics.
Embodiment two, what is different from the first embodiment is that power supply is aging as EPS emergency power supplies, power source aging method phase
Together.
It is analyzed below for related experiment：
（1）In the case that EPS emergency power supply capacity is certain, different voltages and load are inputted, environment temperature is 50 DEG C.
The capacity of EPS emergency power supplies is taken as 10KVA, alternating current is divided into normal output and malfunction, input different voltages and
Load, observes temperature, output voltage and the output frequency of ups power, the results are shown in Table 3：
Table 3
By 3 gained of table, UPS temperature is basically stable at 50 DEG C or so in this experiment, and internal electronic component is in the temperature
Interior normal work.Meanwhile alternating current input is in EPS emergency power supply input rated voltages（187V-242V）In the range of when, EPS meets an urgent need
Power supply directly exports alternating current；When alternating current is inputted not in EPS emergency power supply input rated voltages（187V-242V）In the range of when,
I.e. alternating current is in malfunction, and ups power is powered, and ensures the stabilization of output voltage and output frequency in certain time, EPS
Emergency power supply exports 220VAC ± 10%, frequency 50Hz.EPS emergency power supplies power supply in experiment is qualified, has voltage stabilizing, frequency stabilization spy
Property.
（2）The input voltage of EPS emergency power supplies is under high voltage, different UPS capacity, and environment temperature is 50 DEG C.
Take the capacity of EPS emergency power supplies：3KVA, 5KVA, 8KVA, 10KVA, alternating current are divided into normal output and malfunction,
Input voltage is 227.4V, observes temperature, output voltage and the output frequency of ups power, the results are shown in Table 4：
Table 4
By 4 gained of table, this Germicidal efficacy EPS emergency power supplies capacity and the relation of its stability, EPS emergency power supply temperature bases
At 50 DEG C or so, internal electronic component works normally this stabilization in the temperature.Meanwhile when alternating current input rated voltage
（187V-242V）In the range of when, in normal output state, no matter EPS emergency power supply amount of capacity, EPS emergency power supplies are by city
Electricity directly exports；When alternating current input is 0V, i.e., alternating current is in malfunction, and ups power is powered, and ensures in certain time
The stabilization of output voltage and output frequency, EPS emergency power supplies output 220VAC ± 10%, frequency 50Hz.EPS emergency power supply capacity
It can determine the load capacity of load, not influence the stability of power supply, the EPS emergency power supplies in experiment are qualified.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art,
Without departing from the structure of the invention, several modifications and improvements can also be made, these all do not interfere with implementation of the present invention
Effect and practical applicability.
Claims (5)
1. a kind of intelligent power aging method, it is characterised in that：Comprise the following steps：
Step 1, input voltage Operational Timelines and load running timetable in the controller, wherein voltage are high voltage, low electricity
Pressure and normal voltage, load as capacitive load, inductive load or rectified load；
Step 2, in the case where being aging power supply without input voltage and zero load, controller obtains the specified letter for being aging power supply
Breath, whether judgement is aging power supply normal, if normally, controller can store the rating blocks for being aging power supply, and under entering
One step if abnormal, can alarm and determine to be aging power supply unqualified, the power supply that is aging is met an urgent need for ups power or EPS
Power supply；
Step 3, in the case where being aging power supply and having input voltage and zero load, according to the voltage Operational Timelines, controller is sent
Close commands are aging power input high voltage, controller obtains old under light condition to the switch unit of control high voltage
Change the status information A of power supply, whether judgement is aging power supply normal, low-voltage and normal voltage situation and so on；
Step 4, in the case where being aging plant-grid connection load and having input voltage, according to load running timetable and it is aging
The rating blocks of power supply first determine the load capacity of access load according to the capacity for being aging power supply, and then controller, which is sent, is closed
The switch unit with control load is ordered, power supply is aging and accesses load of different nature stage by stage, controller obtains load
The status information B of power supply is aging under state, it is whether normal that judgement is aging power supply.
2. intelligent power aging method according to claim 1, it is characterised in that：Rating blocks described in step 2 are
Rated power.
3. intelligent power aging method according to claim 1, it is characterised in that：It is old described in step 3 and step 4
Changing the status information A and B of power supply includes output voltage, electric current, frequency and temperature.
4. intelligent power aging method according to claim 1, it is characterised in that：Switch described in step 3 and step 4
Unit is relay.
5. intelligent power aging method according to claim 3, it is characterised in that：UPS the and EPS electric power output voltages
Scope for 220V ± 1%, the scope of frequency is 50HZ ± 5%, and the scope of temperature is 70 DEG C of ＜.
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| CN103809128A (en) * | 2012-11-08 | 2014-05-21 | 中兴通讯股份有限公司 | Power supply automatic testing and aging production line |
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| JPS58167974A (en) * | 1982-03-29 | 1983-10-04 | Fujitsu Ltd | Aging system for power source unit |
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| CN101650411A (en) * | 2009-07-31 | 2010-02-17 | 迈普通信技术股份有限公司 | Universal power-aging testing system |
| CN101620259A (en) * | 2009-08-07 | 2010-01-06 | 东莞市冠佳电子设备有限公司 | Method and system for power supply aging |
| CN103809128A (en) * | 2012-11-08 | 2014-05-21 | 中兴通讯股份有限公司 | Power supply automatic testing and aging production line |
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