电工技术学报2012，Vol.27Issue(4)：179-184,239,7.
SEDC与TCSC联合抑制次同步振荡的研究
Research on Sub-Synchronous Oscillation Mitigation Using Supplementary Excitation Damping Controller and Thyristor Controlled Series Capacitor
摘要
Abstract
Operating in vernier mode thyristor-controlled series capacitor（TCSC） can control the degree of series compensation consistently,and changes sub-synchronous oscillation（SSO） conditions as a result.Besides,band width of the harmonic created by TCSC is wide enough to allow signals at subsynchronous oscillation frequency to pass.And this could excite SSO under certain conditions.Because of these reasons,study of subsynchronous oscillation problems on systems operating with TCSC is much more complicated.This paper focuses on using SEDC and TCSC operating in combination to suppress SSO.The impact of different TCSC operating conditions on SSO was studied.2 sets of SEDC parameters were given respectively based on the operating characteristics of TCSC.And switching between 2 sets of parameters was carried out by simulation.Our results show that by switching control parameters we can have a better robustness on SEDC and increase the safety operating range of TCSC greatly.关键词
次同步振荡/可控串联补偿（TCSC）/附加励磁阻尼控制器（SEDC）/阻尼特性Key words
Sub-synchronous oscillation(SSO)/thyristor-controlled series capacitor(TCSC)/supplementary excitation damping controller(SEDC)/damping characteristic分类
信息技术与安全科学引用本文复制引用
吴熙,蒋平..SEDC与TCSC联合抑制次同步振荡的研究[J].电工技术学报,2012,27(4):179-184,239,7.基金项目
“十一五”国家科技支撑计划重大项目 （）
江苏省研究生科研创新计划项目 （）
