基于主模比的FACTS阻尼控制器广域信号选取方法  

Selecting Method of FACTS Damping Controller Wide Area Control Signals Based on Dominant Mode Ratio

作　　者：王华昕[1] 赵永熹[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《中国电力》2013年第9期61-64,70,共5页Electric Power

基　　金：上海市高校选拔培养优秀青年教师科研专项基金资助项目(sdl10014);上海市教委重点学科建设项目(J51301)

摘　　要：FACTS阻尼控制器的广域信号选取是影响控制器效果的重要因素,提出了一种基于主模比指标的选取方法。对单输入输出系统建立辨识模型,提出主模比指标;利用Prony辨识手段,计算复杂多机系统各个反馈信号的主模比;通过一个标准3机系统验证主模比指标确定广域反馈信号的可行性;以川渝电网为实际案例,比较了广域阻尼与本地信号的静止无功补偿器控制效果的差异。仿真结果表明,该方法能有效改善系统动态稳定性。The paper introduces the method of dominant mode ratio to solve the problem of FACTS damping controller design and proposes a method for selecting the FACTS damping eontroller wide-area control signals based on dominant mode ratio. The dominant mode ratio indicator is proposed in the model of single input and output system. The indictor of complex system is cahadated by t, sing the PRONY idenlification method. The method is proved feasible in the standard 3 machine system. A case study was conduc.ted in Sichuan and Chongqing power grid to improve the practieability of the SVC damping controller. The simulation shows that the method can impnwe the power system ＇ s dynamic stability.

关 键 词：主模比 阻尼控制器 广域信号 系统辨识 

分 类 号：TM76[电气工程—电力系统及自动化]