电力系统电压稳定性研究与分岔理论  

Voltage Stability Studies and Bifurcation Theory in Power Systems

作　　者：赵兴勇[1] 张秀彬[1] 苏小林[2] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]山西大学工程学院,太原030013

出　　处：《电工技术学报》2008年第2期87-95,共9页Transactions of China Electrotechnical Society

摘　　要：基于分岔理论的基本概念和主要分析方法,介绍了电力系统电压稳定分析中的多种分岔现象及其与电压稳定的关系,然后从静态分岔和动态分岔两个方面,对分岔理论在电压稳定研究中的主要方法进行了总结和评述。在静态分岔分析中,重点论述了鞍结点分岔(SNB)和鞍极限诱导分岔(SLIB);在动态分岔分析中,论述了Hopf分岔(HB)和奇异诱导分岔(SIB)。着重阐述了这四种分岔的定义、满足的条件、采用的数学模型和适应范围及电压失稳分岔点的追踪方法,并比较了这些分析方法的优缺点。最后,对分岔理论在电压稳定分析中需进一步深入探讨的领域进行了展望。Based on the basic concepts and main methods of bifurcation theory, the bifurcation phenomena in power system analysis and the effects of bifurcation on the voltage stability are described The application of static and dynamic bifurcation in voltage stability studies is reviewed, respectively. In static bifurcation analysis, two main bifurcations, namely saddle-node bifurcation （SNB） and saddle limit-induced bifurcation （SLIB） are analyzed emphatically; in dynamic bifurcation analysis, Hopf bifurcation （HB） and singularity induced bifurcation （SIB）, are analyzed emphatically. These four kinds of bifurcations causing mainly voltage instability are discussed and summarized detailedly; the advantages and disadvantages of these methods are compared. The further research field of bifurcation theory applied in voltage stability analysis is prospected.

关 键 词：电力系统电压稳定 分岔理论静态分岔 动态分岔 直接法 延拓法 

分 类 号：TM712[电气工程—电力系统及自动化]