کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
560078 | 1451852 | 2016 | 15 صفحه PDF | دانلود رایگان |
• Robust fixed-order non-fragile dynamic output feedback controller, for suspension systems is proposed.
• The most complete model of linear controller with direct feedthrough parameter is considered.
• An H∞H∞ performance index is used to attenuate external disturbance caused by road surface.
• Norm-bounded perturbations of controller parameters can be tolerated using the proposed method.
• Appropriate LMI constraints are considered in order to prevent controller parameters from taking very large and undesirable amounts.
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∞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.
Journal: Mechanical Systems and Signal Processing - Volume 80, 1 December 2016, Pages 137–151