Automatic checking method for generator set grid-related protection and limitation

A network-related protection and generator set technology, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of lack of generator set excitation limit and automatic check function of network-related protection

Active Publication Date: 2014-12-03
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for automatic checking of generator set's network-related protection and limit, which solves the problem of lack of generator set excitation limit and automatic check function of network-related protection in the existing simulation program

Method used

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  • Automatic checking method for generator set grid-related protection and limitation
  • Automatic checking method for generator set grid-related protection and limitation
  • Automatic checking method for generator set grid-related protection and limitation

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Embodiment 1

[0052] like Figure 1-9 As shown, the invention of the invention of the generating set network-related protection and limit automatic check method

[0053] 1. Index information modeling for network-related protection and restrictions

[0054] Due to the large number of units in the power grid and the complex relationship between network-related protection and restrictions, it is difficult to directly check one by one. According to the principle of hierarchical decomposition, the present invention decomposes the entire power grid into three levels: power plant, unit, network-related protection and restriction, and the relationship between each level is as follows: figure 1 shown. Through hierarchical modeling, each protection and restriction model can be conveniently and accurately indexed for corresponding information storage and query. Among them, the power plant can be uniquely identified by the name of the power plant and the ID number of the power plant, and the generat...

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Abstract

The invention relates to an automatic checking method for generator set grid-related protection and limitation. The method is suitable for large-scale power system stable simulation, and based on grid topology, the basic trend, dynamic component parameters and the grid-related protection constant value, a grid-related protection and limitation model is automatically generated, according to different running modes, a failure set is automatically formed, cooperative relationship static checking and time-domain simulation dynamic checking of generator set grid-related protection and limitation can be automatically achieved, and a corresponding checking result is given. According to the method, the problem that in an existing power system stable simulation program, the generator set grid-related protection and limitation automatic checking function is lacked is solved, and it is ensured that set grid-related protection can adapt to changes of the power grid running mode, and the method can be in best fit with an automatic device. On the basis of ensuring set safety, the dynamic adjusting capability can be fully developed, and the powerful support can be provided for safe and stable running of the power grid.

Description

Technical field: [0001] The invention relates to a method for automatic verification of network-related protection and limitation of a generator set, and more particularly relates to a method for automatic verification of network-related protection and limitation of a generator unit in large-scale power system stability simulation. Background technique: [0002] In the power system, network-related protection and limitation refers to the relay protection and excitation limitation of the generator set, the action behavior and parameter settings are related to the operation mode of the power grid, or need to be coordinated with the safety automatic devices in the power grid, mainly including Generator set loss of excitation protection, step-out protection, frequency abnormality protection, over-excitation protection, stator voltage abnormality protection, steam turbine overspeed protection control and over-excitation limit, under-excitation limit, volt / hertz limit, etc. The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 吴国旸刘桂林宋新立马士英王青宋墩文骆斌仲悟之刘涛叶小晖刘燕嘉苏志达高凯何晓洋张艳军赵鹏刘凯那广宇李青春王印徐世来
Owner STATE GRID CORP OF CHINA
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