基于线性最优控制理论的励磁系统的设计及仿真  

Design and Simulate of the Generator Excitation Based on Linear Optimal Theory

作　　者：凌艳[1] 

机构地区：[1]三峡大学

出　　处：《变频器世界》2007年第7期43-45,66,共4页The World of Inverters

摘　　要：发电机励磁系统对远距离输电系统的稳定性有很大影响。本文基于单机无穷大系统的线性化模型,结合线性最优控制理论建立了最优励磁控制器用的系统状态方程,求出线性最优励磁控制电力系统稳定器,用MATLAB仿真软件在单机无穷大系统两种不同的运行状态下进行仿真,仿真结果表明无论是小扰动还是大扰动,最优励磁控制都具备了良好的电压性能,且给出了比AVR+PSS更强的阻尼,表现出良好的动态特性。The influence of generator excitation system on stability of long-distance transmission system is great. Based on the linear model of single-machine infinite-bus power system ;rod the theoretic of Linear Optimal Control, a set of state space equations by Linear Optimal Excitation Controller＂ are built. Then the optimal power system stabilizer is obtained. The MATLAB simulation results on two oPeration points of single-machine infinite-bus system. The result indicates that liner optimal excitation controller has more Preferable control Performance, and compare with AVR＋PSS excitation controller has well dynamic Performance,too.

关 键 词：线性最优理论 建模 线性最优励磁控制器 仿真 

分 类 号：TM921[电气工程—电力电子与电力传动]