CN103187735B - Bidirectional intelligent gateway device for distributed new energy grid connection - Google Patents
Bidirectional intelligent gateway device for distributed new energy grid connection Download PDFInfo
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Abstract
The invention discloses a bidirectional intelligent gateway device for distributed new energy grid connection. The generating capacity of a distributed new energy power generating set is surplus or insufficient, if the generating capacity reaches the set threshold value, a request is sent for grid connection; then an electric power dispatch system gives an answer for grid connection according to uploaded electric energy mass parameters, the surplus amount of the generated electricity and the operation situation of a power grid, if the grid connection request is approved, an inverter of the new energy power generating set and a power grid are connected through an actuating mechanism, and after grid connection, the electric energy transferred by the power grid or the consumed power grid electric energy is measured by an electric energy bidirectional charging device, so that the problem of grid connection of the distributed new energy generating set is solved. Furthermore, after grid connection, if the electricity energy mass parameters do not meet the grid connection requirement, the power grid accessing is disconnected or the output of the inverter of the distributed new energy power generating set is disconnected, so that the adverse impact of grid connection on the power grid quality and the power grid stability is lowered, and the safety of the power grid is effectively guaranteed.
Description
Technical field
The invention belongs to intelligent power grid technology field, more specifically say, relate to a kind of bidirectional intelligent gateway device grid-connected for distributed new.
Background technology
Intelligent grid is the new product of modern power network technical development, it is combined at the sensing measurement technology of advanced person, ICT (information and communication technology), analysis decision technology, automatic control technology and electricity power technology, and and that formed new-modernization electrical network integrated with electrical network infrastructure device height.Its objective is and information flow, electric energy stream and Business Stream in electrical network are unified, thus the dynamic equilibrium of supply and demand controlling electric energy, to realize whole power system stability, reliable, environmental protection, economy, to run efficiently.In recent years, along with the extensive use of various advanced technology in electrical network, the intelligent inexorable trend having become power network development, development intelligent grid is worldwide built consensus.
Meanwhile, along with the development of new energy technology, generation of electricity by new energy device also obtains certain popularization.Distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) refers to distributed power generation unit photovoltaic module or wind-force assembly, inverter, storage battery etc. formed, in order to solar energy or wind energy transformation to be become electric energy to meet household electricity or little demand.Generation of electricity by new energy is mainly divided into stand alone generating system and grid-connected system, under the main trend of intelligent power grid technology development, distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) as stand alone generating system carries out grid-connectedly seeming particularly important, with realize unnecessary power delivery to electrical network and when the electric energy that generates electricity not enough or of low quality be switched to mains supply.
Nowadays, the grid-connected bottleneck problem being still this field of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is also problem in the urgent need to address.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of bidirectional intelligent gateway device grid-connected for distributed new is provided, to solve the grid-connected problem of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), realize unnecessary power delivery to electrical network and when the electric energy that generates electricity not enough or of low quality be switched to the function of mains supply.
For realizing above object, the present invention is used for the grid-connected bidirectional intelligent gateway device of distributed new, it is characterized in that, comprising:
One electric energy quality real-time monitoring analysis module, monitor for the quality of power supply that exports distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and generated output, real-time acquisition power quality parameter and generated output, the power consumption situation of load is monitored simultaneously, obtain electric energy loaded consumption, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching the threshold value of setting, then send grid-connected request;
After grid-connected, when power quality parameter does not reach grid-connected requirement, as wave distortion, etc. asynchronous with mains frequency phase place can cause electric network pollution, electric energy quality real-time monitoring analysis module, according to the requirement of load to the quality of power supply and the power consumption of load, exports and disconnects control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter;
One communication module, for being communicated by the electric power dispatching system of powerline network with power monitoring department, upload power quality parameter, generating surplus capacity or in shortage and grid-connected request, receive electric power dispatching system according to uploading power quality parameter, the grid-connected response made of generate electricity surplus capacity or in shortage and grid operating conditions;
One actuator, if access electrical network is agreed in grid-connected response, then distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load access electrical network by actuator, if do not agree to access electrical network, then by electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load maintains off-state; Meanwhile, after grid-connected, if actuator receives the disconnection control signal that electric energy quality real-time monitoring analysis module exports, disconnect electrical network or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter immediately;
The two-way accounting module of one electric energy, for accessing electric energy electric current and voltage-phase angle according to electrical network
size, real-time judge electrical network access power direction, and then determine to consume electrical network electric energy or to electrical network transmission of electric energy; And offset power consumption net electric energy or measure to the size of electrical network transmission of electric energy, realize bidirectional electric energy function of measuring.
The object of the present invention is achieved like this:
The present invention is used for the grid-connected bidirectional intelligent gateway device of distributed new, distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) power quality parameter, generated output and electric energy loaded consumption is obtained in real time by electric energy quality real-time monitoring analysis module, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching the threshold value of setting, then send grid-connected request; Then electric power dispatching system is according to uploading power quality parameter, generating surplus capacity and the grid-connected response made of grid operating conditions, if agree to access electrical network, then by actuator by distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and electrical network grid-connected, the two-way message accounting of grid-connected rear electric energy measures electrical network transmission of electric energy or consumption electrical network electric energy, thus solves the grid-connected problem of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT).Simultaneously, after grid-connected, when power quality parameter does not reach grid-connected requirement, as wave distortion, asynchronously with mains frequency phase place cause electric network pollution, electric energy quality real-time monitoring analysis module is according to the requirement of load to the quality of power supply, export and disconnect control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, thus reduce the grid-connected negative effect to power grid quality, grid stability, the safety of effective guarantee electrical network.
In addition, after grid-connected, the power quality parameter that electric energy quality real-time monitoring analysis module will obtain, generating surplus capacity or in shortagely send to electric power dispatching system in real time by communication module, remote monitoring is carried out to distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), if do not reach electric power dispatching system to the requirement of the quality of power supply and power scheduling requirement, then send order to electric energy quality real-time monitoring analysis module by communication module, by electric energy quality real-time monitoring analysis module according to the requirement of load to the quality of power supply and the power consumption of load, export and disconnect control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter.
Advantage of the present invention and effect:
The present invention is used for the grid-connected bidirectional intelligent gateway device of distributed new, solves the technical problem that distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) is effectively grid-connected.This Bidirectional intelligent gateway realizes the Real Time Monitoring of the distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) quality of power supply, obtain power quality parameter and the generating surplus capacity or in shortage of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), and by communication module, parameter is uploaded to the electric power dispatching system of power monitoring department, both can carry out Real-Time Monitoring to the quality of power supply, also can complete the scheduling peak regulation of electrical network simultaneously according to concrete generating electricity consumption situation.In addition, bidirectional electric energy billing function is achieved for the bidirectional intelligent gateway device that distributed new is grid-connected, realize distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) being had more than needed electric power anti-" selling " to electrical network, the enthusiasm that user promotes distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) can be improved, also make that the application of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) electric power is more economical, efficient, environmental protection.Meanwhile, the development for intelligent grid is also significant.
Accompanying drawing explanation
Fig. 1 is the present invention for the schematic diagram of grid-connected bidirectional intelligent gateway device one embodiment of distributed new;
Fig. 2 is the application schematic diagram of the bidirectional intelligent gateway device grid-connected for distributed new in photovoltaic generation shown in Fig. 1;
Fig. 3 is the bidirectional intelligent gateway device circuit structure block diagram grid-connected for distributed new shown in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in and will be left in the basket here.
Fig. 1 is the present invention for the schematic diagram of grid-connected bidirectional intelligent gateway device one embodiment of distributed new, and wherein dotted portion is power line.
In the present embodiment, as shown in Figure 1, the bidirectional intelligent gateway device that the present invention is used for distributed new grid-connected comprises electric energy quality real-time monitoring analysis module 1, communication module 2, actuator 3, the two-way accounting module 4 of electric energy, data memory module 5 and log pattern 6.
The quality of power supply that electric energy quality real-time monitoring analysis module 1 pair of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and generated output are monitored, real-time acquisition power quality parameter and generated output, the power consumption situation of load is monitored simultaneously, obtain electric energy loaded consumption, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching the threshold value of setting, then send grid-connected request.
In the present embodiment, electric energy quality real-time monitoring analysis module 1 comprises inverter interface, data acquisition interface, generating date analysis module, complete the conversion to inverter output voltage electric current, collection and process Treatment Analysis in real time, realizing power quality parameter and generated output parameter monitoring and process.
Communication module 2 is communicated by the electric power dispatching system of powerline network with power monitoring department, upload power quality parameter, generating surplus capacity or in shortage and grid-connected request, receive electric power dispatching system according to uploading power quality parameter, the grid-connected response made of generate electricity surplus capacity or in shortage and grid operating conditions
If access electrical network is agreed in the grid-connected response of actuator 3, then distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load access electrical network by actuator, if do not agree to access electrical network, then by electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load maintains off-state.
After grid-connected, when power quality parameter does not reach grid-connected requirement, as wave distortion, etc. asynchronous with mains frequency phase place can cause electric network pollution, now, electric energy quality real-time monitoring analysis module 1, according to the requirement of load to the quality of power supply and the power consumption of load, exports and disconnects control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter.In the present embodiment, if the quality of power supply meets the requirement of load and generated output can the power consumption of load, then disconnect electrical network access, otherwise, disconnect distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and export.
In addition, when the power consumption of load is larger, if directly access electrical network, can electrical network be directly caused to cause instability, therefore, if when the quality of power supply of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) can not meet the requirement of load, electric energy quality real-time monitoring analysis module 1 exports and disconnects the output of control signal disconnection distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, when switching to mains supply, need to send access request and required power consumption by communication module 2 to electric power dispatching system, if electrical network meets the demands, then actuator 3 electrical network access, if do not met, then actuator 3 electrical network and load disconnect.
If actuator receives the disconnection control signal that electric energy quality real-time monitoring analysis module exports, disconnect electrical network or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter immediately.As shown in Figure 1, in the present invention, disconnect the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and export disconnection control signal to distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter by actuator's execution and actuator, disconnect it and export.In concrete enforcement, also directly can be exported by electric energy quality real-time monitoring analysis module 1 and disconnect control signal to distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, disconnect it and export.
The two-way accounting module 4 of electric energy is according to electrical network access electric energy electric current and voltage-phase angle
size, real-time judge electrical network access power direction, and then determine to consume electrical network electric energy or to electrical network transmission of electric energy; And offset power consumption net electric energy or measure to the size of electrical network transmission of electric energy, realize bidirectional electric energy function of measuring.
In the present embodiment, the two-way accounting module of electric energy 4 pairs of electrical network access electric energy electric currents and voltage are monitored, electrical network access electric energy electric current and voltage-phase angle
size, real-time judge electrical network access power direction, and then determine to consume electrical network electric energy or to electrical network transmission of electric energy.
In the present embodiment, access power refers to there is power, and active power refers to the mean value of the instantaneous power of AC energy in one-period, i.e. the mean value amassed in one-period of alternating voltage u (t) and alternating current i (t) instantaneous value.In sinusoidal ac signal situation, input electric energy voltage and current signal is:
U in formula
m, I
mbe respectively electric energy voltage, current effective value
ω is angular frequency
for voltage and current phase difference
According to power definition system instantaneous power p be:
Calculate active-power P thus:
Measurement gained voltage and current value is drawn phase place angle after corresponding calculation process
calculate formula in conjunction with above-mentioned active power and can judge electric energy direction, thus certain electric energy metrical pattern: a) when phase place angle
meet
or
i.e. power factor
time, show that user consumes electrical network electric energy, be now forward electric energy metrical pattern, forward electric energy adder constantly adds up and realizes forward electric energy tariffing in conjunction with real-time rate; B) when phase place angle
meet
i.e. power factor
time, showing that user is to electrical network transmission of electric energy, is now reverse power quantitative model, and reverse power adder is constantly cumulative realizes reverse power charging in conjunction with real-time rate simultaneously.
Data memory module 5 is for the record of quality of power supply basic parameter, harmonic parameters and electric energy event statistics result data, log pattern 6 is for being recorded in daily record by the execution etc. of grid-connected influential operation and task, in order to the operation behavior of replaying user and the implementation status of task, the operation occurred for device and executive problem provide analysis foundation.
Fig. 2 is the application schematic diagram of the bidirectional intelligent gateway device grid-connected for distributed new in photovoltaic generation shown in Fig. 1.
In the present embodiment, as shown in Figure 2, distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) comprises photovoltaic module, storage battery and inverter.When generation of electricity by new energy device large-scale application, each Blast Furnace Top Gas Recovery Turbine Unit (TRT) realizes, with the information interaction of the supervision dispatching patcher of power monitoring department, being realized the equilibrium of supply and demand of electric power by the scheduling of power monitoring department by communication module.In addition, this bidirectional intelligent gateway device achieves the bidirectional measuring flowed into flowing out electric energy, thus can realize the function of two-way charging.
Principle for the main consideration that the bidirectional intelligent gateway device that distributed new is grid-connected accesses:
(1), application main object be distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), as photovoltaic generation, wind power generation.
(2), the electric pressure mainly family expenses civil power grade of application.
(3), by the accreditation of electric power authorities, access powerline network.
Fig. 3 is the bidirectional intelligent gateway device circuit structure block diagram grid-connected for distributed new shown in Fig. 1.
In the present embodiment, as shown in Figure 3, by the high voltage part of electric energy quality real-time monitoring analysis module 1 and inverter interface, data acquisition interface and actuator 3 with adopt duplicate supply isolation method to power electric energy quality real-time monitoring analysis module 1 i.e. generating date analysis module, data memory module 5 and log pattern 6.The governor circuit module that generating date analysis module, data memory module 5 and log pattern 6 are made up of ARM and DSP dual core processor realizes.
This device adopts dual microprocessors, DSP core is mainly used in data acquisition and process computing, ARM core is mainly as the hardware platform of built-in Linux operating system, periphery is attached with clock circuit, reset circuit, jtag interface circuit and RAM and FLASH memory circuit, forms the groundwork circuit of dual microprocessors.
The DSP end of governor circuit module mainly completes electrical energy parameter sampling, electrical energy parameter calculation process and the process of electric energy event operation, and for ARM holds business realizing to provide data source, its main business comprises:
1, electric energy quality monitoring analysis
This business mainly completes monitoring analysis and the display thereof of various power quality parameter, mainly contains basic parameter monitoring analysis: frequency, electric current and voltage deviation, effective value, active power, reactive power, power factor (PF), degree of unbalance; The monitoring analysis of harmonic parameters: electric current and voltage each harmonic amplitude and phase place, m-Acetyl chlorophosphonazo, each harmonic active power, power factor (PF), harmonic wave total distortion; Electric energy event monitoring analyze: transient overvoltage, voltage swell, fall temporarily, flickering; Display: the graphic software platform of each electrical energy parameter Monitoring Data display, voltage/current Wave data, the block diagram display of each harmonic.
2, data store
This business mainly completes the record to quality of power supply basic parameter, harmonic parameters and electric energy event statistics result data, is stored in the external storage equipments such as SD card or hard disk, in order to ensure long data record.
3, data processing
Parameters of electric power data are mainly processed into master pattern data by this business, realize electric energy quality real-time monitoring analysis module 1 and the two-way information interaction of electric power dispatching system, dispatch to complete grid-connected electric energy.When distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) supply electric energy meet loading demand also have electric energy more than needed simultaneously time, grid-connected application can be sent to electric power dispatching system, power quality parameter, information such as generating surplus capacity and grid-connected request etc. are sent to electric power dispatching system, electric power dispatching system to when calculating, thus makes judgement according to real-time local grid-connected situation.If meet grid-connected requirement, electric power dispatching system sends grid-connected response, after actuator 3 receives this grid-connected response, if access electrical network is agreed in grid-connected response, then distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load access electrical network by actuator, if do not agree to access electrical network, then by electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load maintains off-state, control energy storage device access simultaneously and realize power storage more than needed.
When distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) fails to meet loading demand and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generation deficiency completely, now electric energy quality real-time monitoring analysis module 1 proposes the application of access electrical network by communication module 2 to electric power dispatching system, after dispatching patcher receives access application, through judgement, if agreed to, send the grid-connected response of access permission to actuator 3, after actuator 3 receives this grid-connected response, the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and load access power grid control will be accessed electrical network.
4, optimum configurations
This business mainly completes the setting of the device parameter to collection, storage, communication aspects, arranges content and comprises customer parameter setting, conventional parameter setting and functional parameter setting.Customer parameter arranges contents such as mainly realizing memory configuration, phase mark; Conventional parameter arranges contents such as mainly realizing wiring configuration mode, speech selection; Functional parameter arranges contents such as mainly realizing the two-way charging rate of electric energy, Detecting Power Harmonics display (as harmonic number, each harmonic distortion etc.) is arranged, in order to meet the different needs.
5, gps clock is synchronous
This business mainly complete twin installation internal time according to the correction of universal time, for device provide high-precision lock in time reference data, in order to the synchronism of assurance device electrical energy parameter monitoring analysis.
6, log recording and inquiry
Log pattern 6 mainly completes and is recorded in daily record by the execution etc. of grid-connected influential operation and task, and in order to the operation behavior of replaying user and the implementation status of task, the operation occurred for device and executive problem provide analysis foundation,
7, supplementary service
The business interface that this business is mainly added, to realize the later stage to the maintenance of device, function renewal and operation expanding.
Communication module adopts TI company to produce 10M/100M self adaptation Ethernet chip DP83640, and this chip has based on IEEE1588 precision time protocol, synchronous in order to guarantee the chronometer time that Ethernet connects.Thus can be good at the access to netwoks of data, for the network service of parameters of electric power provides hardware support alternately.
The TFT liquid crystal of liquid crystal and touch-screen sampling 800x480, and four-line resistive touch screen interface, can ensure the display effect enriched.
Actuator, mainly through relay, realizes access and the disconnection of inverter under autonomous information feed back or schedule information feedback.
Data acquisition interface signal conditioning circuit and AD sample circuit realize the sampling to parameters of electric power such as electric current and voltages.
Although be described the illustrative embodiment of the present invention above; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present invention determined, these changes are apparent, and all innovation and creation utilizing the present invention to conceive are all at the row of protection in appended claim.
Claims (5)
1. for the bidirectional intelligent gateway device that distributed new is grid-connected, it is characterized in that, comprising:
One electric energy quality real-time monitoring analysis module, monitor for the quality of power supply that exports distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and generated output, real-time acquisition power quality parameter and generated output, the power consumption situation of load is monitored simultaneously, obtain electric energy loaded consumption, according to generated output and electric energy loaded consumption, obtain distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) generating surplus capacity or in shortage, if when reaching the threshold value of setting, then send grid-connected request;
After grid-connected, when power quality parameter does not reach grid-connected requirement, electric energy quality real-time monitoring analysis module, according to the requirement of load to the quality of power supply and the power consumption of load, exports and disconnects control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter;
One communication module, for being communicated by the electric power dispatching system of powerline network with power monitoring department, upload power quality parameter, generating surplus capacity or in shortage and grid-connected request, receive electric power dispatching system according to uploading power quality parameter, the grid-connected response made of generate electricity surplus capacity or in shortage and grid operating conditions;
One actuator, if access electrical network is agreed in grid-connected response, then distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load access electrical network by actuator, if do not agree to access electrical network, then by electrical network and distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter exports and load maintains off-state; Meanwhile, after grid-connected, if actuator receives the disconnection control signal that electric energy quality real-time monitoring analysis module exports, disconnect electrical network or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter immediately;
The two-way accounting module of one electric energy, for accessing electric energy electric current and voltage-phase angle according to electrical network
size, real-time judge electrical network access power direction, and then determine to consume electrical network electric energy or to electrical network transmission of electric energy; And offset power consumption net electric energy or measure to the size of electrical network transmission of electric energy, realize bidirectional electric energy function of measuring.
2. bidirectional intelligent gateway device according to claim 1, it is characterized in that, after grid-connected, the power quality parameter that electric energy quality real-time monitoring analysis module will obtain, generating surplus capacity or in shortagely send to electric power dispatching system in real time by communication module, remote monitoring is carried out to distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT), if do not reach electric power dispatching system to the requirement of the quality of power supply and power scheduling requirement, then send order to electric energy quality real-time monitoring analysis module by communication module, by electric energy quality real-time monitoring analysis module according to the requirement of load to the quality of power supply and the power consumption of load, export and disconnect control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter.
3. bidirectional intelligent gateway device according to claim 1, it is characterized in that, described electric energy quality real-time monitoring analysis module is according to the requirement of load to the quality of power supply and the power consumption of load, and output disconnects control signal disconnection electrical network access or the output of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter is:
If the quality of power supply meets the requirement of load and generated output can meet the power consumption of load, then disconnect electrical network access, otherwise, disconnect distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter and export.
4. bidirectional intelligent gateway device according to claim 1 and 2, it is characterized in that, when the power consumption of load is larger, if directly access electrical network, can directly cause electrical network unstable, therefore, if when the quality of power supply of distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) can not meet the requirement of load, electric energy quality real-time monitoring analysis module exports and disconnects the output of control signal disconnection distributed new Blast Furnace Top Gas Recovery Turbine Unit (TRT) inverter, when switching to mains supply, need to send access request and required power consumption by communication module to electric power dispatching system, if electrical network meets the demands, then actuator's electrical network access, if do not met, then actuator's electrical network and load disconnect.
5. bidirectional intelligent gateway device according to claim 1, is characterized in that, also comprises data memory module and log pattern;
Data memory module is used for the record of quality of power supply basic parameter, harmonic parameters and electric energy event statistics result data, log pattern is used for the executive logging of grid-connected influential operation and task in daily record, in order to the operation behavior of replaying user and the implementation status of task, the operation occurred for device and executive problem provide analysis foundation;
The high voltage part of described electric energy quality real-time monitoring analysis module and inverter interface, data acquisition interface and actuator and generating date analysis module, data memory module and log pattern adopt duplicate supply isolation method to power;
The governor circuit module that generating date analysis module, data memory module and log pattern are made up of ARM and DSP dual core processor realizes.
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| CN114744676A (en) * | 2020-07-07 | 2022-07-12 | 国网山东省电力公司平度市供电公司 | Dynamic scheduling method for merging distributed power supply subsystem into power grid subsystem |
| KR20230167348A (en) | 2021-02-04 | 2023-12-08 | 랜디스＋기어 테크놀로지, 인크 | Decentralized control and grid stability for energy storage device charging |
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| CN101847891A (en) * | 2009-10-30 | 2010-09-29 | 深圳市科陆电子科技股份有限公司 | Method for monitoring distributed power supply network incorporation in distribution network terminal |
| CN102128978A (en) * | 2010-01-20 | 2011-07-20 | 华北电网有限公司 | Energy consumption metering system supporting two-way communication |
| CN202586493U (en) * | 2011-09-25 | 2012-12-05 | 国网电力科学研究院 | Micro electrical network energy management system |
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