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Reliability evaluation method for distribution network under maintenance mode based on deep bidirectional search method

A two-way search and maintenance technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as increased computational complexity, and achieve the effect of convenient calculation

Pending Publication Date: 2019-05-07
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology

The analytical method has clear physical concepts, high model precision, and clear logical concepts. However, when the number of components increases, the amount of calculation increases rapidly. When the power grid reaches a certain scale, it is quite difficult to directly use the analytical method

Method used

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  • Reliability evaluation method for distribution network under maintenance mode based on deep bidirectional search method
  • Reliability evaluation method for distribution network under maintenance mode based on deep bidirectional search method
  • Reliability evaluation method for distribution network under maintenance mode based on deep bidirectional search method

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Embodiment Construction

[0033] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, a reliability evaluation method based on the deep two-way search method under the maintenance mode of the distribution network includes the following steps:

[0035] S1, collect and summarize the data of each typical grid structure in the distribution network system to be studied;

[0036] S2, based on the MATLAB platform to build the model of each typical grid structure of the distribution network system;

[0037] S3, using the deep two-way search method to simulate and calculate the models of each typical grid structure, and obtain the reliability calculation results of the distribution network system maintenance mode through simulation.

[0038] Described step S1 comprises:

[0039] Statistics on the length of each line, the failure rate and repair time of line faults and p...

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Abstract

The invention discloses a reliability evaluation method for a distribution network under a maintenance mode based on a deep bidirectional search method, which comprises the steps of S1, collecting andsummarizing data of each typical network structure in a distribution network system to be studied; S2, building models of the typical network structures in the distribution network system based on anMATLAB platform; and S3, carrying out simulated calculation on the model of each typical network structure by adopting the deep bidirectional search method, and obtaining a reliability calculation result of the distribution network system under the maintenance mode through simulation.

Description

technical field [0001] The invention relates to the reliability research field of distribution network security, in particular to a reliability evaluation method in a distribution network maintenance mode based on a deep bidirectional search method. Background technique [0002] The security of the power system refers to the ability of the power system to provide power and electricity to users without interruption after a sudden disturbance. The power supply capacity of the power grid under different safety criteria is an important capacity for the study of power supply reliability of the power grid. The current domestic urban network reliability research usually only considers the N-1 criterion, the so-called single-fault safety criterion. Stable operation and normal power supply, other components are not overloaded, and the safety criteria of voltage and frequency are within the allowable value range. However, it has certain limitations for various situations in the power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 张开宇冯煜尧郭强余颖辉赵乐冯楠熊雪君
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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