摘要
自适应控制系统能够辨识外界环境条件或系统本身变化,自动修正控制系统参数或控制作用,使系统达到预期状态。介绍了模型参考自适应控制系统(MRAS)的基本结构和控制原理,利用系统的输入输出设计了分数阶控制器,并针对参数未知的线性系统,通过构造新的含有分数阶微分项的Lyapunov函数,设计了一种新的自适应控制律,详细介绍了其设计步骤,并证明了该自适应控制律的有效性。
Self-adaptive control system can identify changes from outside environmental condition or system itself and automatically revise control system parameters or control function to make system achieve expected situation.Basic structure and control theory of model reference self-adaptive control system （MRAS） are introduced.Fractional-order controller is designed utilizing system＇s input-output, aiming at linear systems with unknown parameters, a novel self-adaptive control law is designed by constructing a new Lyapunov function containing fractional order differentioction options.Detailed design steps are introduced with validated efficiency of the self-adaptive control law.
出处
《石油化工自动化》
CAS
2015年第5期43-47,共5页
Automation in Petro-chemical Industry
