Power system transient stability prevention control method and system

A power system, transient stability technology, applied in the direction of AC network voltage adjustment, data processing applications, instruments, etc., can solve the problems of not adapting to the power grid, low solution efficiency, high modeling difficulty, etc., and achieve high online application efficiency and modeling The effect of low complexity and strong generalization ability

Active Publication Date: 2021-06-15
TSINGHUA UNIV +3
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Problems solved by technology

[0004] However, the prevention and control method based on experience has rigid rules, and the adjustment strategy is not precise enough. The prevention and control measures mastered by the dispatcher need long-term training and are not precise enough, and the response speed of manual dispatching is relatively slow.
The preventive control method based on optimization model solution is difficult to model under the condition of large-scale power grid, and the solution efficiency is low
As the power grid operation mode becomes more diverse and complex, the above two preventive control methods are increasingly unsuitable for the needs of the power grid

Method used

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  • Power system transient stability prevention control method and system
  • Power system transient stability prevention control method and system
  • Power system transient stability prevention control method and system

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[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] Such as figure 1 As shown, the embodiment of the present invention provides a power system transient stability prevention control method, including:

[0043] S1. Obtain target power flow data of the power system, the target power flow data including: the active power of each load in the power system, the reactive power of each load, and th...

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Abstract

The embodiment of the present invention provides a power system transient stability prevention control method and system, which adjusts the active output of each generator in the target power flow data through the generator in the preset generation confrontation network model, so that the power system is in a temporary state. stable state. Compared with the manual adjustment method, its adjustment accuracy is high and its generalization ability is strong; compared with the adjustment method based on optimization model solution, its modeling complexity is low, and its online application efficiency is high.

Description

technical field [0001] The present invention relates to the technical field of power system control, and more specifically, to a method and system for preventing and controlling transient stability of a power system. Background technique [0002] At present, the safe and stable operation of the power system is an important basis for the normal operation of modern society. The transient stability of the power system is used to measure the ability of the power system to return to the original stable state or enter a new stable state after a large disturbance occurs. [0003] In order to ensure the high transient stability of the power system, we can start from adding relay protection devices, improving the topology of the power grid, and preventive control. Among them, preventive control is a very important means used in the daily operation of the power grid. Specifically, it is to improve the power flow distribution of the power grid by adjusting the output of the generator ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06G06N3/04H02J3/12
CPCG06Q10/0637G06Q50/06H02J3/12G06N3/045
Inventor 陈颖刘浩然李晓萌饶宇飞张振安徐得超张星徐树文关慧哲
Owner TSINGHUA UNIV
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