Transient stability analysis for a power system based on fault panoramic information

被引：0

作者：

Wang Z. ^{[1
]}

Zhu S. ^{[1
]}

Wang T. ^{[1
]}

Liu J. ^{[1
]}

Qin H. ^{[2
]}

机构：

[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing

[2] Beijing Sifang Automation Co., Ltd., Beijing

来源：

Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 15期

基金：

中国国家自然科学基金;

关键词：

Contraction matrix; Fault location; Fault panoramic information; Transient stability; Transition resistance;

D O I：

10.19783/j.cnki.pspc.191171

中图分类号：

N94 [系统科学]; C94 [];

学科分类号：

0711 ; 081103 ; 1201 ;

摘要：

In order to accurately judge the transient stability state of a power system after a fault, a power system transient stability analysis method based on fault panoramic information is proposed. First, the factors affecting the system transient stability are analyzed, and the fault panoramic information is constructed. This information includes fault time, fault location, fault type and transition resistance. Then, the fault panoramic information is input into the final admittance matrix through a two shrinkage systems admittance matrix. The extended equal area rule is used to form a three-dimensional surface of the system transient stability margin in different fault scenarios. The transient stability boundary of the system is obtained by extracting the intersection line between the surface and the zero margin surface. Finally, the IEEE 3-machine 39-bus and New England 10-machine 39-bus systems are used as test systems for simulation. The results show that this method can improve the accuracy of transient stability assessment considering the fault panoramic information under different faults. © 2020, Power System Protection and Control Press. All right reserved.

引用

页码：34 / 42

页数：8

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