A method for automatic verification of network-related protection and limitation of generating units

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

Active Publication Date: 2016-09-21
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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  • A method for automatic verification of network-related protection and limitation of generating units
  • A method for automatic verification of network-related protection and limitation of generating units
  • A method for automatic verification of network-related protection and limitation of generating units

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Embodiment 1

[0052] Such as 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 gene...

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Abstract

The invention relates to a method for automatic verification of network-related protection and limitation of a generating set, which is suitable for large-scale power system stability simulation; The network-related protection and limitation model can automatically form fault sets according to different operation modes, and automatically realize the static check of the coordination relationship between the generator set's network-related protection and limit and the dynamic check of time domain simulation, and give the corresponding check results. The present invention solves the problem of lack of generator set grid-related protection and limited automatic check function in the existing power system stability simulation program, ensures that the generator set grid-related protection can adapt to the change of the grid operation mode, and achieves the best cooperation with the automatic device; and On the basis of ensuring the safety of the unit, give full play to its dynamic adjustment ability and provide strong support for the safe and stable operation 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 Patents(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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