[1]蒋建东,芦明,王世果..电网故障计算中参数不对称的模拟方法研究[J].郑州大学学报(工学版),2007,28(03):80-82.[doi:10.3969/j.issn.1671-6833.2007.03.021]
　JIANG Jiandong,Lu Ming,Wang Shiguo.Research on simulation method of parameter asymmetry in power grid fault calculation[J].Journal of Zhengzhou University (Engineering Science),2007,28(03):80-82.[doi:10.3969/j.issn.1671-6833.2007.03.021]

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电网故障计算中参数不对称的模拟方法研究()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

28卷

期数:

2007年03期

页码:

80-82

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Research on simulation method of parameter asymmetry in power grid fault calculation

作者:

蒋建东; 芦明; 王世果.

郑州大学,电气工程学院,河南,郑州,450001, 南阳电力技工学校,电力处,河南,南阳,473009

Author(s):

JIANG Jiandong; Lu Ming; Wang Shiguo

关键词:

电网;  故障计算;  参数不对称;  模拟

Keywords:

power grid;  fault calculation;  parameter asymmetry;  Simulation

DOI:

10.3969/j.issn.1671-6833.2007.03.021

文献标志码:

A

摘要:

通过引入虚拟支路和虚拟节点,建立模拟参数不对称的虚拟端口,以虚拟端口为边界,将参数不对称电网分解成对称网络部分和模拟参数不对称的不对称网络部分.根据补偿法的基本原理,用从虚拟端口向对称网络的注入电流作为补偿电流,将参数不对称电网转化为对称电网.将不对称电网转化为对称电网后,可以利用基于对称分量法的各种故障计算方法进行电网故障计算.最后以一个不对称系统短路故障为例进行计算,结果证明算法有效.

Abstract:

By introducing virtual branches and virtual nodes, a virtual port with simulated parameter asymmetry is established, and the parameter asymmetric power grid is decomposed into a symmetric network part and an asymmetric network part with simulated parameter asymmetry with the virtual port as the boundary. According to the basic principle of the compensation method, the injection current from the virtual port to the symmetric network is used as the compensation current to convert the parameter asymmetric power grid into a symmetrical power grid. After converting the asymmetric power grid into a symmetric power grid, various fault calculation methods based on symmetric component method can be used to calculate the fault of the power grid. Finally, an asymmetric system short-circuit fault is taken as an example to calculate, and the results prove that the algorithm is effective.

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