CN110912206A - Virtual power plant based power distribution network fault recovery power supply method and system - Google Patents
Virtual power plant based power distribution network fault recovery power supply method and system Download PDFInfo
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- CN110912206A CN110912206A CN201911178554.XA CN201911178554A CN110912206A CN 110912206 A CN110912206 A CN 110912206A CN 201911178554 A CN201911178554 A CN 201911178554A CN 110912206 A CN110912206 A CN 110912206A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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Abstract
The invention relates to a virtual power plant-based power distribution network fault recovery power supply method, which comprises the following steps: step S1, the power distribution automation system master station detects a line fault, controls the fault disconnection, and informs the virtual power plant master station; s2, the virtual power plant master station searches for the controllable resources of the virtual power plant, performs optimization calculation and informs the distribution automation system master station; step S3, the power distribution automation system master station carries out safety verification processing on the voltage and the frequency of the fault power distribution line according to the optimized operation information; s4, the virtual power plant master station performs optimized operation on the controllable resources according to the verification result; and step S5, the main station of the power distribution automation system controls the corresponding circuit breakers in the contact power distribution terminals to realize closing, and electrically connects the fault area with the controllable resources, so that fault recovery is performed. The invention also discloses a corresponding system. By implementing the invention, the negative influence caused by faults can be reduced, and the stability of the power distribution system is enhanced.
Description
Technical Field
The invention relates to a method for recovering a power distribution network fault, in particular to a method and a system for recovering power supply of the power distribution network fault based on a virtual power plant.
Background
When a power distribution network fails, the power distribution automation system detects the failure and controls a related circuit breaker through a power distribution terminal to isolate the failure; after the fault is isolated, the power supply of the normal isolated load needs to be restored; the scheme of recovering power supply is numerous and complex aiming at the grid structure of different power distribution networks, and in the standby power recovery scheme in the prior art, different operating conditions can cause different problems under the same fault condition, such as insufficient standby capacity of a line, overload of other normal lines and the like.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a system for power distribution network fault recovery power supply based on a virtual power plant, wherein the virtual power plant optimizes controllable resources according to fault information, so that an optimal fault recovery method is obtained for a power distribution automation system, and stable and safe operation of the system is met.
In order to solve the technical problem, in one aspect of the present invention, a method for recovering power supply based on a virtual power plant power distribution network fault is provided, which includes the following steps:
step S1, when the main station of the power distribution automation system detects a line fault, the power distribution terminal is controlled to disconnect the circuit breakers at two sides of the fault point, and fault information is notified to the main station of the virtual power plant;
s2, the virtual power plant master station searches for the controllable resources of the virtual power plant directly connected with the fault distribution line, performs optimization calculation, and sends the optimization result to the distribution automation system master station;
s3, the power distribution automation system master station receives the optimized operation information of the virtual power plant and carries out safety verification processing on the voltage and the frequency of the fault power distribution line;
s4, the virtual power plant master station performs optimized operation on the controllable resources according to the verification result of the distribution automation system master station, and sends the optimized operation result to the distribution automation system master station;
and step S5, after receiving the information of the completion of the execution optimization operation of the virtual power plant, the main station of the power distribution automation system controls the corresponding circuit breakers in the contact power distribution terminals to realize closing, and electrically connects the fault area with the controllable resources, so that fault recovery is performed.
Preferably, the fault information in step S1 includes: a fault location number, a fault type, and isolation information.
Preferably, the step S2 further includes:
the virtual power plant master station determines controllable resources which are adjacent to a fault location and are in final contact with the contact power distribution according to the fault information, wherein the controllable resources comprise controllable load terminals and controllable energy storage systems;
the virtual power plant master station determines the optimized calculation of controllable resources according to the fault information, and determines the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the virtual power plant master station sends the controllable resource information and the optimization calculation result to the distribution automation system master station.
Preferably, the step S3 further includes:
the power distribution automation system master station verifies an optimization calculation result from the virtual power plant master station and determines whether power supply can be recovered according to the optimization calculation result;
and if the judgment result is yes, informing the virtual power plant main station to execute optimized operation so as to increase output power and reduce consumed power.
As another aspect of the present invention, the present invention further provides a system for recovering power supply based on a failure of a power distribution network of a virtual power plant, which includes:
the system comprises a disconnection notification unit, a virtual power plant master station and a virtual power plant master station, wherein the disconnection notification unit is used for notifying fault information to the virtual power plant master station after a power distribution automation system master station detects a line fault and controls a power distribution terminal to disconnect circuit breakers on two sides of a fault point;
the controllable resource determining unit is used for searching the controllable resources of the virtual power plant directly connected with the fault distribution line by using the virtual power plant master station, performing optimization calculation and sending an optimization result to the power distribution automation system master station;
the optimization information verification unit is used for performing safety verification processing on the voltage and the frequency of the fault distribution line after the power distribution automation system main station receives the optimization operation information of the virtual power plant;
the optimization execution unit is used for executing optimization operation on the controllable resources after the virtual power plant master station receives the verification result of the distribution automation system master station and sending the optimization operation result to the distribution automation system master station;
and the fault recovery unit is used for controlling a circuit breaker in the corresponding contact power distribution terminal to realize closing after the main station of the power distribution automation system receives the message of finishing the execution optimization operation of the virtual power plant, and electrically connecting the fault area with the controllable resource so as to carry out fault recovery.
Preferably, the failure information in the disconnection notification unit includes: a fault location number, a fault type, and isolation information.
Preferably, the controllable resource determination unit further includes:
the retrieval unit is used for determining controllable resources which are adjacent to a fault location and are connected with a contact power distribution terminal according to the fault information, and the controllable resources comprise controllable load terminals and controllable energy storage systems;
the optimization calculation unit is used for determining the optimization calculation of the controllable resources according to the fault information, and determining the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the optimization information notification unit is used for sending the controllable resource information and the optimization calculation result to the main station of the distribution automation system.
Preferably, the optimization information verification unit further includes:
the judging unit is used for verifying the optimization calculation result from the virtual power plant master station and determining whether power supply can be recovered according to the optimization calculation result;
and the verification processing unit is used for informing the virtual power plant master station to execute optimized operation when the judgment result of the judgment unit is ok so as to increase the output power and reduce the consumed power.
As another aspect of the present invention, the present invention further provides a system for recovering power supply based on a virtual power plant power distribution network failure, which includes:
the power distribution system comprises a power distribution automation system main station and a plurality of power distribution terminals controlled by the power distribution automation system main station, wherein the power distribution terminals are used for controlling the on-off of circuit breakers in a power distribution line;
further comprising:
the system comprises a virtual power plant master station, and at least one virtual power plant controllable load terminal and an energy storage terminal which are controlled by the virtual power plant master station;
the power distribution automation system main station is in communication connection with the virtual power plant main station;
the communication power distribution terminal is controlled by the power distribution automation system main station and is used for controlling the on-off of a circuit breaker to realize the on-off of the power distribution network and the line of the virtual power plant;
the distribution automation system main station further comprises the disconnection notification unit, an optimization information verification unit and a fault recovery unit;
the virtual power plant main station further comprises the controllable resource determining unit and the optimization execution unit.
Preferably, the failure information in the disconnection notification unit includes: a fault location number, a fault type and isolation information;
the controllable resource determination unit further includes:
the retrieval unit is used for determining controllable resources which are adjacent to a fault location and are connected with a contact power distribution terminal according to the fault information, and the controllable resources comprise controllable load terminals and controllable energy storage systems;
the optimization calculation unit is used for determining the optimization calculation of the controllable resources according to the fault information, and determining the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the optimization information notification unit is used for sending the controllable resource information and the optimization calculation result to the main station of the distribution automation system.
By implementing the embodiment of the invention, the invention has the following beneficial effects:
in the method and the system for power distribution network fault recovery power supply based on the virtual power plant, the power distribution automation system main station sends the fault information to the virtual power plant main station, and the main station optimizes related schedulable resources in the virtual power plant according to the fault information, so that the power distribution automation system can be helped to adopt a simpler and more reliable fault recovery scheme, the power failure range of the fault is reduced, the power failure time is shortened, and the stability and the safety of the power distribution system are improved.
Meanwhile, the output of the virtual power plant for regulating and controlling resources can be improved, the economic benefit of the virtual power plant is increased, and the negative influence caused by faults is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a main flow chart of a method for recovering power supply based on a virtual power plant power distribution network fault provided by the invention;
FIG. 2 is a schematic structural diagram of an embodiment of a system for recovering power supply from a power distribution network fault based on a virtual power plant according to the present invention;
fig. 3 is a schematic structural diagram of the controllable resource determination unit in fig. 2;
FIG. 4 is a schematic diagram of the structure of the optimization information verification unit in FIG. 2;
fig. 5 is a circuit configuration diagram of an embodiment of a system for recovering power supply from a power distribution network fault based on a virtual power plant according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Fig. 1 shows a main flow diagram of a method for recovering power supply based on a virtual power plant power distribution network fault according to the present invention. In this embodiment, the method comprises the steps of:
step S1, when the main station of the power distribution automation system detects a line fault, the power distribution terminal is controlled to disconnect the circuit breakers at two sides of the fault point, and fault information is notified to the main station of the virtual power plant; wherein the fault information includes: a fault location number, a fault type, and isolation information.
S2, the virtual power plant master station searches for the controllable resources of the virtual power plant related to the fault distribution line, performs optimization calculation, and sends the optimization result to the distribution automation system master station;
specifically, the step S2 further includes:
the virtual power plant master station determines controllable resources which are adjacent to a fault location and are in final contact with the contact power distribution according to the fault information, wherein the controllable resources comprise controllable load terminals and controllable energy storage systems;
the virtual power plant master station determines the optimized calculation of controllable resources according to the fault information, and determines the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the virtual power plant master station sends the controllable resource information and the optimization calculation result to the distribution automation system master station.
S3, the power distribution automation system master station receives the optimized operation information of the virtual power plant and carries out verification processing;
specifically, the step S3 further includes:
the power distribution automation system master station verifies an optimization calculation result from the virtual power plant master station and determines whether power supply can be recovered according to the optimization calculation result;
and if the judgment result is yes, informing the virtual power plant main station to execute optimized operation so as to increase output power and reduce consumed power.
S4, the virtual power plant master station performs optimized operation on the controllable resources according to the verification result of the distribution automation system master station, and sends the optimized operation result to the distribution automation system master station;
and step S5, after receiving the information of the completion of the execution optimization operation of the virtual power plant, the main station of the power distribution automation system controls the corresponding circuit breakers in the contact power distribution terminals to realize closing, and electrically connects the fault area with the controllable resources, so that fault recovery is performed.
As shown in fig. 2, which is a schematic structural diagram illustrating a system for recovering power supply from a power distribution network fault based on a virtual power plant according to the present invention, and shown in fig. 3 to 4 together, the system 1 includes:
the disconnection notification unit 10 is configured to notify the virtual power plant master station of fault information after the power distribution terminal is controlled to disconnect the circuit breakers on the two sides of the fault point when the power distribution automation system master station detects a line fault; the failure information in the disconnection notification unit 10 includes: a fault location number, a fault type, and isolation information.
The controllable resource determining unit 11 is configured to search, by using a virtual power plant master station, for a virtual power plant controllable resource directly connected to a faulty power distribution line, perform optimization calculation, and send an optimization result to a distribution automation system master station;
the optimization information verification unit 12 is configured to perform safety verification processing on the voltage and the frequency of the faulty distribution line after the power distribution automation system master station receives the optimized operation information of the virtual power plant;
the optimization execution unit 13 is used for the virtual power plant master station to execute the optimization operation on the controllable resources after receiving the verification result of the distribution automation system master station, and send the optimization operation result to the distribution automation system master station;
and the fault recovery unit 14 is used for controlling the circuit breakers in the corresponding contact power distribution terminals to realize closing after the main station of the power distribution automation system receives the information of the completion of the execution optimization operation of the virtual power plant, and electrically connecting the fault area with the controllable resource, so that fault recovery is performed.
As shown in fig. 3, in a specific example, the controllable resource determining unit 11 further includes:
a retrieving unit 110, configured to determine, according to the fault information, a controllable resource that is adjacent to a fault location and is associated with a contact power distribution terminal, where the controllable resource includes a controllable load terminal and a controllable energy storage system;
the optimization calculation unit 112 is configured to determine, according to the fault information, an optimization calculation of controllable resources, and determine an amount of output power that can be increased by the virtual power plant and an amount of consumed power that can be decreased by the virtual power plant;
and an optimization information notification unit 113, configured to send the controllable resource information and the optimization calculation result to the distribution automation system master station.
As shown in fig. 4, in a specific example, the optimization information verification unit 12 further includes:
the judging unit 120 is configured to verify an optimized calculation result from the virtual power plant master station, and determine whether power supply can be restored according to the optimized calculation result;
and a verification processing unit 121, configured to notify the virtual power plant master station to perform optimization operation to increase output power and reduce power consumption when the determination result of the determining unit 120 is ok.
For more details, reference may be made to the preceding description of fig. 1, which is not detailed here.
In another aspect of the present invention, a system for recovering power supply from a power distribution network fault based on a virtual power plant is further provided, which includes:
the power distribution automation system comprises a power distribution automation system main station and a plurality of power distribution terminals controlled by the power distribution automation system main station, wherein the power distribution automation system main station is defined by DL/T1406-2015; the power distribution terminal is a power distribution automation terminal defined by DL/T1406-2015 and is used for controlling the on-off of a breaker in a power distribution line;
the system comprises a virtual power plant master station, and at least one virtual power plant controllable load terminal and an energy storage terminal which are controlled by the virtual power plant master station;
the power distribution automation system main station is in communication connection with the virtual power plant main station;
the communication power distribution terminal is controlled by the power distribution automation system main station and is used for controlling the on-off of a circuit breaker to realize the on-off of the power distribution network and the line of the virtual power plant;
wherein the distribution automation system master station further comprises a disconnection notification unit 10, an optimization information verification unit 12 and a failure recovery unit 14 shown in fig. 2 and 4;
the virtual plant master station further comprises a controllable resource determination unit 11 and an optimization execution unit 13 as shown in fig. 2 and 3.
For more details, reference may be made to the foregoing description of fig. 2 to 4, which is not detailed here.
To further understand the embodiments of the present invention, the following description is given of the structure and the principle of the present invention with a specific embodiment.
Referring to fig. 5, a circuit diagram of an embodiment of a system for recovering power supply based on a virtual power plant power distribution network fault is shown. Specifically, the distribution automation system master station DA may monitor that the distribution network is connected to all circuit breakers through the distribution terminal, such as the circuit breaker CB1, the circuit breaker CB2, the interconnection circuit breaker CB3 and the circuit breaker CB6 connected to the uncontrollable industrial heavy load, which are labeled in fig. 5; the virtual plant control master VPP can control a controllable load control terminal IED4 and an energy storage control terminal IED 5. The power distribution automation system main station comprises the disconnection notification unit 10, the optimization information verification unit 12 and the fault recovery unit 14 in the fig. 2; the virtual power plant regulation and control main station comprises the controllable resource determination unit 11 and the optimization execution unit 13 in the figure 2.
When a fault F1 occurs in a power distribution network, a distribution automation system main station DA can detect the fault F1, and issues tripping commands to trip circuit breakers CB1 and CB2 through controlling distribution terminals IED1 and IED2, so as to isolate the fault F1, at the moment, an uncontrollable industrial heavy load IL can have power failure, under the conventional power supply recovery wide-cold condition, the distribution automation system main station DA can issue a closing command to close a contact circuit breaker CB3 to an interconnection distribution terminal IED3, so as to recover power supply to IL, but if the normal distribution line load rate on the right side of the contact switch is high, the closing contact circuit breaker CB3 can cause line overload, and the failure of power supply recovery is caused.
After distribution automation system main website DA isolation fault F1, send the virtual power plant main website VPP with fault information, virtual power plant main website VPP is according to fault information, and the adjustable and controllable resource of virtual power plant is inserted in the retrieval, and VPP can find two adjustable and controllable resources relevant with this trouble: the controllable load CL, the energy storage BESS and the VPP optimize and calculate the running state of the system at the moment to obtain optimized running information, namely the power consumption of the controllable load CL is reduced, the output power of the energy storage BESS is increased, and the optimized information is sent to a main station DA of the distribution automation system.
After the DA verification system of the distribution automation system main station optimizes operation information, the fact that power consumption can be reduced through reducing the controllable load CL and the output power of the energy storage BESS can be reliably and safely recovered for power supply is found, when the VPP of the virtual power plant main station regulates the controllable load CL and the energy storage BESS and the power reaches a certain condition, the DA convergence gate of the distribution automation system main station contacts the circuit breaker CB3, and power distribution network fault recovery power supply is safely and reliably performed.
By implementing the embodiment of the invention, the invention has the following beneficial effects:
in the method and the system for power distribution network fault recovery power supply based on the virtual power plant, the power distribution automation system main station sends the fault information to the virtual power plant main station, and the main station optimizes related schedulable resources in the virtual power plant according to the fault information, so that the power distribution automation system can be helped to adopt a simpler and more reliable fault recovery scheme, the power failure range of the fault is reduced, the power failure time is shortened, and the stability and the safety of the power distribution system are improved.
Meanwhile, the output of the virtual power plant for regulating and controlling resources can be improved, the economic benefit of the virtual power plant is increased, and the negative influence caused by faults is greatly reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A method for recovering power supply from power distribution network faults based on a virtual power plant is characterized by comprising the following steps:
step S1, when the main station of the power distribution automation system detects a line fault, the power distribution terminal is controlled to disconnect the circuit breakers at two sides of the fault point, and fault information is notified to the main station of the virtual power plant;
s2, the virtual power plant master station searches for the controllable resources of the virtual power plant directly connected with the fault distribution line, performs optimization calculation, and sends the optimization result to the distribution automation system master station;
s3, the power distribution automation system master station receives the optimized operation information of the virtual power plant and carries out safety verification processing on the voltage and the frequency of the fault power distribution line;
s4, the virtual power plant master station performs optimized operation on the controllable resources according to the verification result of the distribution automation system master station, and sends the optimized operation result to the distribution automation system master station;
and step S5, after receiving the information of the completion of the execution optimization operation of the virtual power plant, the main station of the power distribution automation system controls the corresponding circuit breakers in the contact power distribution terminals to realize closing, and electrically connects the fault area with the controllable resources, so that fault recovery is performed.
2. The method according to claim 1, wherein the fault information in step S1 includes: a fault location number, a fault type, and isolation information.
3. The method according to claim 1, wherein the step S2 further comprises:
the virtual power plant master station determines controllable resources which are adjacent to a fault location and are in final contact with the contact power distribution according to the fault information, wherein the controllable resources comprise controllable load terminals and controllable energy storage systems;
the virtual power plant master station determines the optimized calculation of controllable resources according to the fault information, and determines the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the virtual power plant master station sends the controllable resource information and the optimization calculation result to the distribution automation system master station.
4. The method according to claim 3, wherein the step S3 further comprises:
the power distribution automation system master station verifies an optimization calculation result from the virtual power plant master station and determines whether power supply can be recovered according to the optimization calculation result;
and if the judgment result is yes, informing the virtual power plant main station to execute optimized operation so as to increase output power and reduce consumed power.
5. The utility model provides a system for distribution network fault recovery power supply based on virtual power plant which characterized in that, it includes:
the system comprises a disconnection notification unit, a virtual power plant master station and a virtual power plant master station, wherein the disconnection notification unit is used for notifying fault information to the virtual power plant master station after a power distribution automation system master station detects a line fault and controls a power distribution terminal to disconnect circuit breakers on two sides of a fault point;
the controllable resource determining unit is used for searching the controllable resources of the virtual power plant directly connected with the fault distribution line by using the virtual power plant master station, performing optimization calculation and sending an optimization result to the power distribution automation system master station;
the optimization information verification unit is used for performing safety verification processing on the voltage and the frequency of the fault distribution line after the power distribution automation system main station receives the optimization operation information of the virtual power plant;
the optimization execution unit is used for executing optimization operation on the controllable resources after the virtual power plant master station receives the verification result of the distribution automation system master station and sending the optimization operation result to the distribution automation system master station;
and the fault recovery unit is used for controlling a circuit breaker in the corresponding contact power distribution terminal to realize closing after the main station of the power distribution automation system receives the message of finishing the execution optimization operation of the virtual power plant, and electrically connecting the fault area with the controllable resource so as to carry out fault recovery.
6. The system according to claim 5, wherein the fault information in the disconnection notification unit includes: a fault location number, a fault type, and isolation information.
7. The system according to claim 6, wherein the controllable resource determination unit further comprises:
the retrieval unit is used for determining controllable resources which are adjacent to a fault location and are connected with a contact power distribution terminal according to the fault information, and the controllable resources comprise controllable load terminals and controllable energy storage systems;
the optimization calculation unit is used for determining the optimization calculation of the controllable resources according to the fault information, and determining the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the optimization information notification unit is used for sending the controllable resource information and the optimization calculation result to the main station of the distribution automation system.
8. The system of claim 7, wherein the optimization information verification unit further comprises:
the judging unit is used for verifying the optimization calculation result from the virtual power plant master station and determining whether power supply can be recovered according to the optimization calculation result;
and the verification processing unit is used for informing the virtual power plant master station to execute optimized operation when the judgment result of the judgment unit is ok so as to increase the output power and reduce the consumed power.
9. A system for power distribution network fault recovery power supply based on a virtual power plant comprises:
the power distribution system comprises a power distribution automation system main station and a plurality of power distribution terminals controlled by the power distribution automation system main station, wherein the power distribution terminals are used for controlling the on-off of circuit breakers in a power distribution line;
characterized in that, further comprising:
the system comprises a virtual power plant master station, and at least one virtual power plant controllable load terminal and an energy storage terminal which are controlled by the virtual power plant master station;
the power distribution automation system main station is in communication connection with the virtual power plant main station;
the communication power distribution terminal is controlled by the power distribution automation system main station and is used for controlling the on-off of a circuit breaker to realize the on-off of the power distribution network and the line of the virtual power plant;
wherein the distribution automation system master station further comprises a disconnection notification unit, an optimization information verification unit, and a failure recovery unit as in claim 5;
the virtual plant Master station further comprises a controllable resource determination unit and an optimization execution unit as claimed in claim 5.
10. The system according to claim 9, wherein the fault information in the disconnection notification unit includes: a fault location number, a fault type and isolation information;
the controllable resource determination unit further includes:
the retrieval unit is used for determining controllable resources which are adjacent to a fault location and are connected with a contact power distribution terminal according to the fault information, and the controllable resources comprise controllable load terminals and controllable energy storage systems;
the optimization calculation unit is used for determining the optimization calculation of the controllable resources according to the fault information, and determining the output power amount which can be increased by the virtual power plant and the consumed power amount which can be reduced by the virtual power plant;
and the optimization information notification unit is used for sending the controllable resource information and the optimization calculation result to the main station of the distribution automation system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113542212A (en) * | 2021-05-21 | 2021-10-22 | 国网辽宁省电力有限公司鞍山供电公司 | Virtual power plant peak regulation instruction safety certification method |
| CN116566057A (en) * | 2023-05-25 | 2023-08-08 | 浙江浙能能源服务有限公司 | User terminal fault detection system for virtual power plant |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082346A (en) * | 2005-09-15 | 2007-03-29 | Central Res Inst Of Electric Power Ind | Method, apparatus, and program for estimating distribution of loads in electrical distribution system and method, apparatus, and program for estimating voltage in the same |
| CN102508081A (en) * | 2011-11-18 | 2012-06-20 | 航天科工深圳（集团）有限公司 | Distribution network fault simulating method and device and distribution network system |
| CN103633660A (en) * | 2013-11-27 | 2014-03-12 | 中国南方电网有限责任公司电网技术研究中心 | Subsection type AC (alternating current) overvoltage and overfrequency restraining method |
| US20140306533A1 (en) * | 2013-04-11 | 2014-10-16 | Solantro Semiconductor Corp. | Virtual inverter for power generation units |
| CN107204631A (en) * | 2017-06-20 | 2017-09-26 | 广东电网有限责任公司电力调度控制中心 | A kind of power network quick recovery method for considering generating set recovery time model |
| CN108879706A (en) * | 2018-07-09 | 2018-11-23 | 国网上海市电力公司 | A kind of automatic voltage control system |
| CN109274175A (en) * | 2018-10-11 | 2019-01-25 | 珠海许继芝电网自动化有限公司 | A kind of distribution terminal extended method and its device based on electrical power distribution automatization system |
-
2019
- 2019-11-27 CN CN201911178554.XA patent/CN110912206B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082346A (en) * | 2005-09-15 | 2007-03-29 | Central Res Inst Of Electric Power Ind | Method, apparatus, and program for estimating distribution of loads in electrical distribution system and method, apparatus, and program for estimating voltage in the same |
| CN102508081A (en) * | 2011-11-18 | 2012-06-20 | 航天科工深圳（集团）有限公司 | Distribution network fault simulating method and device and distribution network system |
| US20140306533A1 (en) * | 2013-04-11 | 2014-10-16 | Solantro Semiconductor Corp. | Virtual inverter for power generation units |
| CN103633660A (en) * | 2013-11-27 | 2014-03-12 | 中国南方电网有限责任公司电网技术研究中心 | Subsection type AC (alternating current) overvoltage and overfrequency restraining method |
| CN107204631A (en) * | 2017-06-20 | 2017-09-26 | 广东电网有限责任公司电力调度控制中心 | A kind of power network quick recovery method for considering generating set recovery time model |
| CN108879706A (en) * | 2018-07-09 | 2018-11-23 | 国网上海市电力公司 | A kind of automatic voltage control system |
| CN109274175A (en) * | 2018-10-11 | 2019-01-25 | 珠海许继芝电网自动化有限公司 | A kind of distribution terminal extended method and its device based on electrical power distribution automatization system |
Non-Patent Citations (1)
| Title |
|---|
| 苏畅等: "电厂工控信息安全半实物仿真模型研究", 《信息技术与网络安全》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113542212A (en) * | 2021-05-21 | 2021-10-22 | 国网辽宁省电力有限公司鞍山供电公司 | Virtual power plant peak regulation instruction safety certification method |
| CN113542212B (en) * | 2021-05-21 | 2023-06-30 | 国网辽宁省电力有限公司鞍山供电公司 | Virtual power plant peak shaving instruction safety authentication method |
| CN116566057A (en) * | 2023-05-25 | 2023-08-08 | 浙江浙能能源服务有限公司 | User terminal fault detection system for virtual power plant |
| CN116566057B (en) * | 2023-05-25 | 2024-04-26 | 浙江浙能能源服务有限公司 | User terminal fault detection system for virtual power plant |
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