Bifurcation analysis for an SMIB power system with series capacitor compensation associated with sub-synchronous resonance  

作　　者：DUAN XianZhong WEN JinYu CHENG ShiJie 

机构地区：[1]Hubei Electric Power Security and High Efficiency Key Lab,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Science China(Technological Sciences)》2009年第2期436-441,共6页中国科学（技术科学英文版）

基　　金：Supported by the National Basic Research Program of China ("973" Projects) (Grant Nos.1998020319 and 2004CB217906)

摘　　要：In this paper,an introduction to the bifurcation theory and its applicability to the study of sub-synchronous resonance (SSR) phenomenon in power system are presented. The continuation and bifurcation analysis software AUTO97 is adopted to investigate SSR for a single-machine-infinite-bus power system with series capacitor compensation. The investigation results show that SSR is the result of unstable limit cycle after bifurcation. When the system exhibits SSR, some complex periodical orbit bifurcations, such as torus bifurcation and periodical fold bifurcation, may happen with the variation of limit cycle. Furthermore, the initial operation condition may greatly influence the ultimate state of the system. The time-domain simulation is carried out to verify the effectiveness of the results obtained from the bifurcation analysis.In this paper, an introduction to the bifurcation theory and its applicability to the study of sub-synchronous resonance (SSR) phenomenon in power system are presented. The continuation and bifurcation analysis software AUTO97 is adopted to investigate SSR for a single-machine-infinite-bus power system with series capacitor compensation. The investigation results show that SSR is the result of unstable limit cycle after bifurcation. When the system exhibits SSR, some complex periodical orbit bifurcations, such as torus bifurcation and periodical fold bifurcation, may happen with the variation of limit cycle. Furthermore, the initial operation condition may greatly influence the ultimate state of the system. The time-domain simulation is carried out to verify the effectiveness of the results obtained from the bifurcation analysis.

关 键 词：SSR (sub-synchronous resonance) BIFURCATION analysis series CAPACITOR compensation 

分 类 号：TM72[电气工程—电力系统及自动化]