PSS的综合阻尼力矩解法——兼及PSS与LOC的异同  

APPLICATION OF COMPREHENSIVE DAMPING TORQUE TO POWER SYSTEM STABILIZER —— Considering the Similarities and Differences of PSSand LOC

作　　者：李先彬[1] 李咸善[2] 李吉振 

机构地区：[1]华北电力大学,北京100085 [2]三峡大学电气学院,湖北宜昌443002 [3]长春工程学院,长春130000

出　　处：《电力系统自动化》2001年第22期22-27,共6页Automation of Electric Power Systems

摘　　要：指出了目前不能用同一方法分析电力系统稳定器 ( PSS)与线性最优控制 ( LOC)的原因。根据综合阻尼原理 ,将 LOC的目标函数用于 PSS的参数选择 ,并与根轨迹法的结果进行了动态响应方面的对比 ,获得了更为合理的结果。用能量耗散的统一概念 ,分析了 PSS与 LOC的异同 ,指出LOC可以获得全域内的最优值 ,且有稍好的鲁棒性 ,但The cause that PSS and LOC can not be analyzed by the same method is elaborated in this paper. According to comprehensive damping principle, the target function of LOC used to solve the selection of PSS parameters is presented. Compared with the results from the prevalent root-locus method, a more reasonable dynamic response of PSS can be obtained. The similarities and differences between PSS and LOC are also discussed additionally on the basis of total energy consumption. However, PSS is still more available because of its being easily made up and effective on damping the low frequency oscillation.

关 键 词：电力系统稳定器 目标函数 根轨迹法 PSS LOC 综合阻尼矩解法 线性最优控制 

分 类 号：TM712[电气工程—电力系统及自动化]