Robust fixed-order dynamic output feedback controller design for nonlinear uncertain suspension system

被引：38
|
作者：
Badri, Pouya [1 ]
Amini, Amir [1 ]
Sojoodi, Mandi [1 ]
机构：
[1] Tarbiat Modares Univ, Sch Elect & Comp Engn, Adv Control Lab, Tehran, Iran
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2016年 / 80卷
关键词：
Convex optimization; Robust stability; Uncertainty; Linear matrix inequality (LMI); Fixed order controller; Non-fragile controller; Active suspension system; H-INFINITY CONTROL; VEHICLE ACTIVE SUSPENSION;
D O I：
10.1016/j.ymssp.2016.04.020
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper deals with designing a robust fixed-order non-fragile dynamic output feedback controller for active suspension system of a quarter-car, by means of convex optimization and linear matrix inequalities (LMIs). Our purpose is to design a low-order controller that keeps the desired design specifications besides the simplicity of the implementation. The proposed controller is capable of asymptotically stabilizing the closed-loop system and developing H, control, despite model uncertainties and nonlinear dynamics of the quarter-car as well as the norm bounded perturbations of controller parameters. Furthermore, controller parameters are prevented from taking very large and undesirable amounts through appropriate LMI constraints. Finally, a numerical example is presented to show the effectiveness of the proposed method by comparing it with similar works. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：137 / 151
页数：15
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