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A fast and stable control method for power grid faults based on automatic coordinated control

A stable control method and coordinated control technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as over-cutting or under-cutting, and achieve the goals of promoting development, improving the level of dispatching and control operations, and ensuring safe and stable operation Effect

Active Publication Date: 2022-03-29
STATE GRID HENAN ELECTRIC POWER
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  • Claims
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Problems solved by technology

However, the current load control target for accidents is determined offline based on operating experience, and there may be problems with over-cutting or under-cutting during online execution

Method used

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  • A fast and stable control method for power grid faults based on automatic coordinated control
  • A fast and stable control method for power grid faults based on automatic coordinated control
  • A fast and stable control method for power grid faults based on automatic coordinated control

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Embodiment Construction

[0057] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] The automatic coordinated control power grid failure fast and stable control method proposed by the present invention, firstly, conduct grid online safety analysis and expected failure safety analysis, find out the real-time status of the power grid and safety problems under expected failure, and propose an auxiliary decision-making scheme; then, according to the auxiliary ...

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Abstract

The present invention provides a fast and stable control method for power grid faults with automatic coordinated control. The method includes: obtaining regional power grid model and regional power grid state estimation data every first preset time period; The whole network model and the state estimation data of the whole network; according to the different needs of the online safety analysis of the power grid and the expected failure safety analysis, the regional power grid model and its state estimation data or the whole network model and its state estimation data are selected as the online data for calculation ;According to the online data for calculation, conduct online safety analysis and predictive failure safety analysis of the power grid, and obtain the analysis results and auxiliary decision-making strategies; according to the analysis results, use AGC, AVC and load batch control system to carry out stable control of the power grid according to the auxiliary decision-making strategies. The invention can adapt to the operation control requirements of large power grids, and can realize rapid and stable control of the power grids through "one-key" operation when serious faults occur in the power grids.

Description

technical field [0001] The invention relates to the technical field of power grid scheduling control operation, in particular to an automatic coordinated control power grid fault fast and stable control method. Background technique [0002] With the gradual formation of my country's UHV AC / DC hybrid power grid pattern, the safety and stability characteristics and mechanism of the power system are becoming more and more complex, and the difficulty of power grid operation control is increasing. Require. As an important link in the construction of "big operation" in the "three collections and five majors" of the State Grid Corporation of China, the State Grid Corporation of China has started the construction of a smart grid dispatching control system since 2009, including online security analysis systems, early warning and auxiliary decision-making functions, and automatic power generation. Control functions (Automatic Generation Control; AGC), automatic voltage control functio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/001
Inventor 韩保军吕颖秦军伟王丹杨宵代飞李岩鲁华永韩伟李朝晖宋开振
Owner STATE GRID HENAN ELECTRIC POWER
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