STATCOM附加电压控制抑制次同步谐振的理论和仿真  

Theory and Simulation of STATCOM Supplementary Voltage Control to Damp Subsynchronous Resonance

作　　者：王冠青[1] 孙海顺[1] 朱鑫要[1] 谭海燕[1] 

机构地区：[1]强电磁工程与新技术国家重点实验室,华中科技大学,湖北省武汉市430074

出　　处：《电力系统自动化》2013年第11期33-38,共6页Automation of Electric Power Systems

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA05A119);国家电网公司大电网重大专项课题(SGCC-MPLG026-2012)~~

摘　　要：提出了应用静止同步补偿器(STATCOM)附加电压控制抑制电力系统次同步谐振(SSR)的控制策略,并详细分析了其作用机理。以某典型串联补偿输电系统为实例,通过电磁暂态仿真验证了该控制策略的有效性。与利用静止无功补偿器(SVC)进行SSR抑制方案的仿真比较表明,同等容量下,应用文中提出的附加电压控制策略的STATCOM对系统SSR的抑制效果优于SVC。该方法为解决国内外输电工程所面临的SSR问题提供了参考,也为STATCOM装置的推广应用提供了依据。A control strategy of static synchronous compensator（STATCOM）based on supplementary voltage control for damping subsynchronous resonance（SSR）is proposed with detailed mathematical analysis on its mechanism.The proposed control scheme is then tested on a typical series-compensated transmission system through simulations.The results demonstrate its effectiveness in damping multimodal SSR.The comparison between STATCOM and static var compensator（SVC）indicates that at the same capacity,STATCOM outperforms SVC in damping SSR.The results are helpful to solving the SSR problems which exist in the series compensated transmission systems in China and abroad.The conclusions also provide valuable references for better applications of the STATCOM.

关 键 词：次同步谐振 静止同步补偿器 附加电压控制 静止无功补偿器 

分 类 号：TM761.1[电气工程—电力系统及自动化]