An LMI Approach to the Problem of Optimal Fuzzy Mixed H2/H_inf Tracking Control for T-S Systems
|
Zahra Yousefi , Said H. Esfahani * |
Associate Professor, Department of Electrical Engineering, Faculty of Engineering, Shahrekord University, Shahrekord, Iran. , said_hoghoughi@yahoo.com |
|
Abstract: (5763 Views) |
This paper is concerned with the problem of output feedback fuzzy mixed H2/H_inf tracking control design for nonlinear systems. A general and modified class of output-feedback controller structure is assumed. Using parallel distributed compensation, a fuzzy controller is proposed which not only satisfies an H_inf tracking control constraint, but also optimally minimizes a H2control performance measure. The proposed method leads to a trade-off between the tracking performance and the amount of control input effort. The problem formulation and the method of finding the optimal fuzzy tracking controller parameters involve a single step linear matrix inequalities form. On a benchmark example, the proposed method is applied on the inverted-pendulum system and is compared with traditional H_inf-only results from diffrent perspectives.
|
|
Keywords: T-S fuzzy systems, tracking control, Mixed, Linear matrix inequalities, Optimal control |
|
Full-Text [PDF 523 kb]
(925 Downloads)
|
Type of Study: Research |
Subject:
LMI based Control Design Received: 2019/10/11 | Accepted: 2021/04/28 | Published: 2022/01/19
|
|
|
|