改善电压稳定性的SVC非线性控制策略  

A nonlinear control strategy design for SVC to improve power system voltage stability

作　　者：李丽[1] 

机构地区：[1]西南科技大学信息与控制工程学院,四川绵阳621000

出　　处：《中国测试技术》2005年第2期21-23,共3页CHINA MEASUREMENT & TESTING TECHNOLOGY

摘　　要：本文对由晶闸管控制电抗器(TCR)型装置与一个固定电容器组(FC)型装置组成的静止无功补偿系统(SVC)建立了一个三阶非线性动态模型。并对该模型应用直接反馈线性化理论(DEF)提出了一种新的SVC的非线性控制策略。用MATLAB软件对输电线路上装设SVC的三母线系统进行仿真。This paper discusses a nonlinear design for TCR-FC Static Var Compensator (SVC) to improve power system voltage stability.A third order nonlinear dynamical model for the SVC system is the developed.Direct feedback linearization (DEF) technique is employed to design a nonlinear control strategy.The effectiveness of the control strategy on voltage stability enhance is studied on a three-bus power system through time simulation.The result shows that the proposed control strategy is effective in voltage stability enhancement.

关 键 词：三阶非线性动态模型 电压稳定 SVC系统 非线性控制 

分 类 号：TM762[电气工程—电力系统及自动化]