Black-start method for expansion of electric power system with micro-grids

A power system, black start technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems of no power system, not perfect, etc., achieve the effect of reducing economic losses and speeding up the recovery process

Active Publication Date: 2014-05-14
广州暨南大学科技园管理有限公司 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] At present, the domestic patents related to the black start scheme of the power system are still not perfec

Method used

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  • Black-start method for expansion of electric power system with micro-grids
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  • Black-start method for expansion of electric power system with micro-grids

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0031] Such as figure 1 As shown, an extended black start scheme for a power system including a microgrid in this embodiment specifically includes the following steps:

[0032] Step 1: According to the actual situation of the blackout system, use the restoration subsystem partition algorithm based on the complex network community structure to divide it into several restoration subsystems;

[0033] Combining the characteristics of the microgrid and the requirements of the black start expansion strategy of the power system, the specific implementation steps of the recovery subsystem partition algorithm based on the complex network community structure in this embodiment are as follows:

[0034] (1) Simplify the power network and represent it with an abstract graph;

[003...

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Abstract

The invention discloses a black-start method for expansion of an electric power system with micro-grids. The method includes the following steps that a power failure system is divided into a plurality of recovery sub-systems through the recovery sub-system division algorithm according to actual conditions of the power failure system; according to the expansion strategy that the micro-grid serves as a black-start power supply and one black-start power supply can start a plurality of units to be started at the same time, solution and optimization are carried out on a black-start scheme for expansion of the electric power system with the micro-grids; according to a determined optimal scheme, the recovery path of each recovery sub-system is charged by the micro-grids in the corresponding recovery sub-system, the recovery range is enlarged gradually, and the whole recovery sub-system is charged finally; a parallel sequence is determined according to the sequence of dividing the recovery sub-systems, all the recovery sub-systems are arranged side by side according to the corresponding sequence after successful black-start, and the whole electric power system is powered again. By means of the method, the electric power system can be powered again quickly, safety and stability of the electric power system are improved, and economic loss caused by power failure is reduced.

Description

technical field [0001] The invention relates to the field of power system recovery, in particular to a black start method for power system extension including microgrid. Background technique [0002] With the rapid development of power grid construction and technology, the large-scale and complex power system greatly increases the possibility of blackout accidents, black start has become an indispensable part of power system recovery, and the increasingly mature micro-grid technology will Playing an important role in solving many problems in the power system, a scientific and reasonable black start scheme is of great significance for realizing the rapid recovery of the power failure system. Since the 1980s, scholars at home and abroad have conducted a lot of research and experiments on the generation and evaluation of black start schemes, but these researches and experiments are basically aimed at the simple method of starting a started unit with a black start power supply. ...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 李伟华陈子颖李嘉耀胡嘉林龙伟勋
Owner 广州暨南大学科技园管理有限公司
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