摘要
采用多变量非线性控制的逆系统理论分析了汽轮发电机组励磁与汽门系统的可逆性 ,并运用逆系统方法将这一多变量、非线性、强耦合的复杂被控对象解耦成两个独立的 SISO线性化积分型子系统 ,然后基于线性系统理论设计了综合控制器。研究结果表明 ,该控制策略实现了励磁控制与汽门调节的动态解耦 ,应用该方法可显著提高电力系统的暂态稳定性。
Based on the multivariable inverse system theory, this paper analyses the invertibility of the excitation and valve system for turbo-generators. With decoupling the multivariable nonlinear system of excitation and valve control into two SISO linear integral subsystems, one can easily design two linear controllers for each subsystem based on linear system theory. The simulation result shows that the control strategy can realize the dynamic decoupling control of excitation and valve and so it can considerably increase the dynamic stability of power system. This project is supported by National Natural Science Foundation of China for National Outstanding Young Investigators (No. 59925718).
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第6期27-30,共4页
Automation of Electric Power Systems
基金
国家杰出青年科学基金!资助项目 (5 992 5 718)
关键词
汽轮发电机
汽门控制
逆系统方法
综合控制器
电力系统
暂态稳定性
Computer simulation
Control theory
Electric control equipment
Electric excitation
Electric power systems
Integrated control
Linear control systems
Multivariable control systems
Nonlinear systems
System stability
