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Partitioning scheme optimizing method and device for power system restoration after blackout

A power system recovery and optimization method technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve problems such as unreasonable grid structure division, long recovery time, and failure to consider the electrical characteristics of the grid

Active Publication Date: 2018-11-13
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology

However, the above scheme only simplifies the power grid into a simple unweighted graph without considering the electrical characteristics of the power grid. In this way, the divided power grid structure does not take into account the electrical characteristics of the power grid, which may lead to a large deviation between the division of the power grid and the actual power grid structure. Large, unreasonable division of the power grid structure, which may lead to a longer recovery time after the power outage, which will bring more negative impacts

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  • Partitioning scheme optimizing method and device for power system restoration after blackout
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  • Partitioning scheme optimizing method and device for power system restoration after blackout

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[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...

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Abstract

The invention provides a partitioning scheme optimizing method and device for power system restoration after blackout, and relates to the technical field of power systems. The method comprises the following steps: establishing a first optimizing model on the basis of the target strategy of fewest connecting lines between subsystems in a power grid and pre-established electrical characteristic constraint conditions of the power grid; solving the first optimizing model based on a preset solver to obtain a first partitioning scheme; processing the first optimizing model based on cutting constraint conditions to obtain a second optimizing model; solving the second optimizing model based on the solver to obtain a second partitioning scheme; evaluating the first partitioning scheme and the second partitioning scheme respectively according to established evaluation indexes to obtain evaluation results of the first partitioning scheme and the second partitioning scheme so as to determine a main partitioning scheme and a standby partitioning scheme from the partitioning schemes on the basis of the evaluation results. Therefore, restoration time after power grid faults can be shortened effectively, and high reliability of power grid restoration after the faults is guaranteed.

Description

technical field [0001] The present application relates to the technical field of power systems, in particular, to a method and device for optimizing a partition scheme for power system restoration after a major blackout. Background technique [0002] A series of large-scale power outages such as the South Australian power grid blackout caused by extreme weather and the Ukraine blackout caused by cyber attacks have warned that the risk of large-scale power outages still exists for power grid operators. Actual operating experience at home and abroad shows that reasonable recovery strategies and programs can speed up the process of system recovery and reduce the negative impact of power outages. According to different power grid system structures and power outage scenarios, the recovery strategies are divided into two recovery modes: Build-down and Build-up. Among them, when there is more than one black start power supply in the system, if the system is reasonably partitioned ...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 马世英李少岩唐晓骏谢岩周光奇霍启迪申旭辉张鑫徐友平张志强邵德军李晓珺党杰罗红梅刘兵李晶潘晓杰吉平李媛媛宋云亭马翮飞李立新刘楠周俊宋墩文李再华张恺
Owner CHINA ELECTRIC POWER RES INST
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