基于特征值法的次同步阻尼守恒特性分析  

Analysis on Subsynchronous Damping Conservation Character Based on Eigenvalue Method

作　　者：肖湘宁[1] 杨琳[1] 张丹[1] 高本锋[1] 李亚男[2] 蒋维勇[2] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市昌平区102206 [2]北京网联直流工程技术有限公司,北京市西城区100005

出　　处：《电网技术》2011年第11期80-84,共5页Power System Technology

摘　　要：运用特征值分析法,分别对含有串联补偿电容的交流系统和含有附加次同步阻尼控制器(supplemental subsynchronous damping controller,SSDC)的HVDC系统的次同步振荡(subsynchronous oscillation,SSO)特性进行了研究。分析了在含有串联补偿电容的交流系统中,补偿度改变时系统总阻尼守恒的机制,以及在含有SSDC的HVDC系统中,SSDC放大倍数改变时系统总阻尼守恒的机制,揭示了系统各振荡模态阻尼的变化规律。By use of eigenvalue analysis, the subsynchronous oscillation （SSO） characteristic of HVAC power system with series compensation capacitor and that of HVDC transmission system with supplemental subsynchronous damping controller （SSDC） are researched respectively. The mechanism of total subsynchronous damping conservation of HVAC power system with series compensation capacitor under variation of compensation degree as well as the mechanism of total subsynchronous damping conservation of HVDC transmission system with SSDC under the variation of amplification factor of SSDC are analyzed. Thus the law of subsynchronous damping variation under various oscillation modals is revealed.

关 键 词：特征值分析法 次同步振荡 高压直流输电 次同步阻尼控制器 串联电容补偿 阻尼守恒 

分 类 号：TM71[电气工程—电力系统及自动化]