Optimal Disturbance Rejection for Discrete-time Nonlinear Systems with Time-delays via High-gain Observer-Based Control
The discrete-time mathematical models for nonlinear systems with delayed control and measurement are established. Based on a linearization and a model transformation, the nonlinear system with delays is transformed to a formal nondelay system. Then the optimal control law with the state feedback term, the disturbance feedforward term, and the control memory term is derived from a discrete Riccati equation and a Stein equation. A high-gain observer is constructed such that the feedforward control law is physically realizable. Simulation results demonstrate the effectiveness of the optimal control law.
time-delays discrete-time systems disturbances optimal control high-gain observer
Shao-Ting Ge Gong-You Tang Cheng-Ming Zhang
College of Information Science and Engineering, Ocean University of China, Qingdao 266100
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
870-874
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）