Robust PI and LQR Controller Design for Active Suspension System with Parametric Uncertainty

被引：0
|
作者：
Mittal, Rahul [1 ]
机构：
[1] Rajasthan Tech Univ, Univ Coll Engn, Dept Elect, Kota, Rajasthan, India
来源：
2015 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMPUTING AND CONTROL (ISPCC) | 2015年
关键词：
Active suspension system; Gain-Phase margin tester; LQR controller; PI controller; Quarter car model; Polytopic uncertain system;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The robust PI controller and state feedback (Linear Quadratic Regulator) controller are designed to stabilize the dynamic responses of active suspension system with parametric uncertainty followed by road irregularities. To take care about the parametric uncertainties in the suspension system, we design the controller to make robust by polytopic representation of the system. A graphical method is used for computing PI controller parameters for all feasible gain and phase margin specifications. For this purpose, a stability boundary locus in (k(p), k(i)) - plane is used. To achieve the specified gain and phase margin of the system, a gain-phase margin tester is used and stability boundary locus is plotted. The controller gains guarantee the stabilization of the system response with uncertain parameters. The simulation results show the effectiveness of the proposed method.
引用
收藏
页码：108 / 113
页数：6
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