Robust Sliding Mode Control for Nonlinear Uncertain Time-delay Systems Based on Disturbance Observer
The disturbance-observer-based sliding mode controller is designed for a class of nonlinear uncertain time-delay systems. A disturbance observer, unbiased in terms of the weighted mean, is designed to estimate the lumped disturbances with time-varying delay by the current system states, and the corresponding estimation error is analyzed. By incorporating H∞ control technique into sliding mode control approach, integral sliding mode controllers are designed to guarantee the H∞ performance of sliding mode dynamics and satisfy the reaching condition. The proposed scheme does not require uncertainties to satisfy matching condition and linear boundary condition, and chattering is efficiently restrained as well. A simulation example illustrates the obtained results.
Disturbance observer Sliding mode control (SMC) H∞ control Time-delay system Linear matriz inequalities
Han Yunhao Mi Yang Li Juntao Yuanwei Jing
Shanghai University of Electric Power, Shanghai 200090, China College of Mathematics and information science, Henan Normal University, Xinxiang, 453007, China The School of Information Science and Engineering, Northeastern University, Shenyang, Liaoning Province,
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
5535-5540
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）