Reduction of subsynchronous resonance complex system with identical turbine-generators

被引：0

作者：

Chen, Wuhui ^{[1
]}

Bi, Tianshu ^{[2
]}

Sun, Xin ^{[1
]}

Wang, Ni ^{[1
]}

Liu, Hui ^{[1
]}

Tan, Lunnong ^{[1
]}

Li, Zhengming ^{[1
]}

机构：

[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China

[2] Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control, North China Electric Power University, Ministry of Education, Changping District, Beijing 102206, China

来源：

Dianwang Jishu/Power System Technology | 2012年 / 36卷 / 11期

关键词：

Resonance;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

It is proposed in this paper that identical generators are subjected to uniform disturbances is the equivalence condition of identical generators, and based on the correlation of state variables of identical generators subjected to uniform disturbances a new equivalence method suitable to power system with more than two identical generators is developed. Eigenstructure analysis results of power system with original identical generators and those of power system with post-equivalence identical generators show that the modes of identical generators subjected to uniform disturbances can be divided into redundant modes and common modes. The redundant modes are cancelled out one another, so they do not impact on dynamic process in power system and only common modes impact on dynamic process in power system. In the proposed equivalence method of identical generators subjected to uniform disturbances all common modes are reserved when all redundant modes are eliminated. Taking an actual complex power system with two identical generators, in which subsynchronous resonance occurs, as the study case, the correctness of both proposed theory and method is verified.

引用

页码：147 / 152