摘要
汽轮机调速系统是一个典型的变参数、强扰动的对象,常规的PID控制器难以满足其控制要求.针对此问题,设计了一种自适应模糊滑模控制器.该控制策略基于带积分补偿的变结构控制器,并利用自适应模糊控制方法,把滑模控制器中的不确定项进行模糊逼近.利用李亚普诺夫函数证明了控制器的稳定性.将此控制策略应用到汽轮机调速系统中,仿真结果显示,控制方法具有较强的鲁棒性和良好的跟踪性能.
The turbine regulating system is a typical controlled object with parameter -varying and force disturbance. Due to these characteristics,good control quality cant be gained when using the normal PID controller. In this paper, an adaptive fuzzy sliding mode control scheme is proposed. The control scheme is based on sliding mode controller with integral compensation. The uncertainties are fuzzed based on fuzzy theory. The stability of the proposed controller is shown using Lyapunov method, The proposed method is applied to turbine regulating system. Simulation results indicate that the control approach is robust and improves tracking accuracy considerably.
出处
《沈阳工程学院学报（自然科学版）》
2009年第2期126-128,135,共4页
Journal of Shenyang Institute of Engineering:Natural Science
关键词
滑模控制
积分
自适应
调速系统
sliding mode control
integral
adaptive
regulating system
