The Comparative Analysis of SVC and STATCOM on Subsynchronous Oscillation Mitigation
The methods for subsynchronous oscillation mitigation based on SVC and STATCOM are analyzed in this paper.According to the IEEE first benchmark model,the electrical damping coefficients respectively provided by SVC and STATCOM connected at the generator terminal,as well as positive damping condition,are deduced by complex torque coefficient approach.Correlative factors which influence the two positive dampings are compared.The analysis results indicate that the positive damping provided by SVC is proportional to the size of system voltage.The positive damping provided by STATCOM is not affected by the size of system voltage,which is mostly proportional to the subsynchronous voltage produced itself.The controllers of SVC and STATCOM are designed and the positive dampings separately offered by SVC and STATCOM are optimized by phase compensation with test signal method.The time domain simulation reveals that STATCOM has stronger damping abifity than SVC in the case of short circuit fault.
subsynchronous oscillation SVC STA TCOM damping test signal method
Jian Zhang Xiangning Xiao Benfeng Gao Chao Luo
North China Electric Power University Beijing China
国际会议
太原
英文
873-876
2013-04-06（万方平台首次上网日期，不代表论文的发表时间）