Robust Output Feedback Control of Electro- Hydraulic Servo System using Wavelet Neural Network
Aimed at improving robustness and tracking control performance of electro-hydraulic servo system, an output feedback control scheme is proposed. To estimate the external disturbance and internal parameter uncertainties, the disturbance observer using wavelet neural network is applied. Novel update and control laws are proposed to guarantee that the observer error and the tracking error in the closed-loop control system are uniformly ultimately bounded (UUB) in the sense of Lyapunov, and the tracking error can be kept arbitrarily small. The theoretical results are illustrated in the design of a controller for an electro-hydraulic servo system. Computer simulations show the strong robustness and applicability of the suggested method compared to PID control.
Disturbance observer Wavelet neural network Electro-hydraulic servo system Output feedback control
Wang Hongyan Qiao Jihong Xia Yuhui
Department of Information Engineering, Academy of Armored Force Engineering, Beijing 100072 College of Computer and Information Engineering, Beijing Technology and Business University, Beijing
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
3647-3652
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）