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Distributed power supply fault recovery method and device

A technology of power supply failure and recovery method, applied in circuit devices, emergency treatment AC circuit layout, electrical components, etc., can solve the problem of not considering the complementary characteristics of multi-source islanding

Active Publication Date: 2021-09-14
STATE GRID GASU ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method and device for recovering distributed power supply faults, which are used to solve the defect that the complementary characteristics of multi-source isolated islands are not considered in the fault recovery of the power system in the prior art, and realize the effect of improving the recovery of distributed power supply faults

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  • Distributed power supply fault recovery method and device
  • Distributed power supply fault recovery method and device
  • Distributed power supply fault recovery method and device

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[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] Combine below figure 1 Describe the distributed power failure recovery method of the present invention, the method comprising the following steps:

[0054] S100. Determine an optimal power supply combination scenario.

[0055] S200. Perform a search for the shortest path between the power sources in the optimal power source combination scenario to generate an initial island. Specifically, step S200 is to ...

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Abstract

The invention provides a distributed power supply fault recovery method and device, and relates to the technical field of power system fault recovery. The method comprises the following steps of: determining an optimal power supply combination scene; searching a shortest path between power supplies in the optimal power supply combination scene to generate an initial island; carrying out initial island search, dividing the island, and updating the range of the island; and judging whether the divided island meets safety evaluation constraint conditions or not, under the condition that the divided island meets the safety evaluation constraint conditions, formulating an island scheme, carrying out distributed power supply fault recovery according to the island scheme. With the method and device adopted, distributed power supply fault recovery is improved.

Description

technical field [0001] The invention relates to the technical field of power system fault recovery, in particular to a distributed power supply fault recovery method and device. Background technique [0002] When the distributed power generation unit in the power distribution system is a distributed access structure, after the power distribution system fails, since there are multiple power access points in the power outage area, the capacity of each power supply is also different. At this time, it is necessary to consider The case of multiple silos. In this case, the network structure of the power outage area and the intermittent output of the power supply have a great impact on the operation of each isolated island. When the island is divided according to the network topology, it is easy to cause the important load on the edge of the island to be unable to restore power supply. The randomness of the intermittent power output affects the power balance of the source and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38
CPCH02J3/001H02J3/388
Inventor 张光儒马振祺杨军亭马志程苏娟杜松怀梁鹏霄梁琛张家午李亚昕温定筠吴建军何欣沈渭程朱亮张凯张艳丽张海龙蒋臣张秀斌高磊赵文锴田阔刘淞
Owner STATE GRID GASU ELECTRIC POWER RES INST
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