Abstract：The problems of subsynchronous resonance (SSR) damping by single-channels power system stabilizer (PSS) and PSS of parallel configuration are analyzed based on the IEEE SSR first benchmark model and the IEEE ST1A excitation system by means of test signal method. The method of computing the ideal phase compensation characteristic provided by PSS is formed based on the phase lags caused by excitation system and the vector relation of rotate speed bias, electromagnetic power bias and electromagnetic torque bias. The parameters of PSS of parallel configuration are optimized by means of genetic algorithms after the ideal compensation phases being computed at the frequencies which are representative in the low frequency range or near the points of SSR frequencies. With the optimized parameters, simulation and analysis are operated. The results show that the actual compensation phases are closer to the ideal compensation phases at entire frequency range with the optimized parameters of PSS of parallel configuration, and better electrical damping characteristic at entire frequency range are obtained, which is the result of that the possibility of subsynchronous resonance and low frequency oscillation is reduced to the least.
蒋平, 王贯义. 抑制次同步谐振的并联结构PSS参数优化[J]. 电工技术学报, 2009, 24(10): 122-127.
Jiang Ping, Wang Guanyi. Parameter Optimization of PSS of Parallel Configuration Used to Damp Subsynchronous Resonance. Transactions of China Electrotechnical Society, 2009, 24(10): 122-127.
[1] 徐政. 交直流电力系统动态特性行为分析[M]. 北京: 机械工业出版社, 2005. [2] 倪以信, 陈寿孙, 张宝霖. 动态电力系统的理论和分析[M]. 北京: 清华大学出版社, 2002. [3] Kundur P. Power system stability and control[M]. New York: McGraw-Hill, 1994. [4] 高磊, 蒋平, 顾伟. 基于多目标优化的电力系统阻尼控制及Hopf分岔控制[J]. 电力自动化设备, 2008, 8(28): 65-68. [5] 张帆, 徐政. 励磁系统及电力系统稳定器对发电机组次同步谐振阻尼特性的影响[J]. 电网技术, 2006, 30(18): 14-19. [6] 张帆, 徐政. 电力系统稳定器抑制次同步谐振的效果[J]. 电工技术学报, 2007, 22(6): 121-127. [7] 张帆, 徐政. 附加励磁阻尼控制抑制次同步谐振研究[J]. 电力系统自动化, 2007, 31(23): 24-29. [8] 徐政. 复转矩系数法的适用性分析及其时域仿真实现[J]. 中国电机工程学报, 2000, 20(6):1-4. [9] Canay I M. A novel approach to the torsional interaction and electrical damping of the synchronous machine part I: theory [J]. IEEE Transactions on Power Apparatus and Systems, 1982, PAS-101 (10): 3630-3638. [10] Canay I M. A novel approach to the torsional interaction and electrical damping of the synchronous machine Part Ⅱ: Application to an arbitrary network[J]. IEEE Transactions on Power Apparatus and Systems, 1982, PAS-101(10): 3639-3647. [11] 胡云花, 赵书强. 电力系统低频振荡和次同步振荡的阻尼耦合分析[J]. 电力自动化设备, 2004, 24(9): 15-17.
2009, Vol. 24 
