应用正规形理论分析电力系统奇异摄动模型  

Analysis of power system singularly perturbed models by normal forms

作　　者：张靖[1] 文劲宇[1] 程时杰[1] 彭志炜[2] Z.Y.Dong 

机构地区：[1]华中科技大学电气学院,湖北武汉市430074 [2]贵州大学电气学院,贵州贵阳市550003 [3]昆士兰大学信息技术与电气工程学院

出　　处：《华东电力》2008年第3期17-22,共6页East China Electric Power

基　　金：国家自然科学基金重大项目(50595410);国家重大基础研究发展规划973项目(2004CB217906)

摘　　要：随着现代电力系统的日益复杂和非线性程度的增加,电力系统在运行点附近表现出了复杂的动态行为,采用传统小扰动法进行分析难以奏效。应用向量场正规形方法和奇异摄动理论,计及网络结构和负荷特性的影响,通过分析电力系统内部模式间的非线性相关作用来认识和理解系统的动态特性,深化了线性化分析中的特征分析理论,为分析强非线性下系统的稳定性及非线性动态特性提供了一条新的有效途径。采用该方法对一个3机9节点电力系统进行了分析,得出了一些有价值的结论。Since the power system is becoming increasingly complicated and non-linear, it shows perplexing dynamic behaviors when it operates under stressed conditions. Since the conditional small disturbance method can not analyze the behavior, the normal form of vector field and the singularly perturbation theory were used to analyze the non-linear interaction within the power system to understand the dynamic characteristics with consideration of influences of network structure and load characteristics. The characteristic analysis theory of linearity analysis is deepened, and a new approach to analyze the stability and non-linear dynamic characteristics of strongly non-linear systems is given. The method was used to analyze a three-generator nine-bus system and some useful conclusions were drawn.

关 键 词：稳定模式 向量场正规形 模式相关 电压稳定 功角稳定 非线性 奇异摄动分析 

分 类 号：TM711[电气工程—电力系统及自动化]