A design of T–S fuzzy controller with disturbance observer
A design of T–S fuzzy controller with disturbance observer
复制标题
DOI：
10.1002/tee.22207
复制
发表时间：
2016-03
影响因子：
1
通讯作者：
Dongyin Wu;Hugang Han
中科院分区：
文献类型：
--
作者：
Dongyin Wu;Hugang Han
本文中所谓的集总干扰包括建模误差、外部干扰、未建模动态和参数摄动。在局部T-S模糊模型中，集中扰动和控制输入不共享同一个系数矩阵。为了设计合适的模糊干扰观测器（FDO），并将FDO的估计带入控制器以抵消干扰的影响，本文提出了系统等价变换。因此，闭环系统的渐近稳定性和FDO和干扰之间的估计误差收敛的条件都以线性矩阵不等式（LMI）的方式提供。此外，计算机模拟来说明所提出的基于FDO的控制系统的有效性。© 2015日本电气工程师协会。出版社：John Wiley & Sons，Inc.
The so‐called lumped disturbance in this paper includes modeling error, external disturbance, unmodeled dynamics, and parameter perturbations. The lumped disturbance and control input do not share the same coefficient matrix in the local Takagi–Sugeno (T–S) fuzzy model. In order to design a proper fuzzy disturbance observer (FDO) and involve the estimate from the FDO into controller to counteract the influence of the disturbance, system equivalence transformation is proposed in this paper. As a result, the conditions for both the asymptotical stability of the closed‐loop system and the convergence of estimation error between the FDO and the disturbance are provided in the manner of linear matrix inequalities (LMIs). Also, computer simulations are provided to illustrate the effectiveness of the proposed FDO‐based control system. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.