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| Received:November 19, 2010Revised:April 13, 2011 |
| 基金项目:The work was financially supported by the Fundamental Research Funds for the Central Universities (No. 12MS49), the Program for Excellent Talents of Beijing (No. 2011A009005000001), and the Overseas Training Project for Young Key Teachers (No. [2011]3022). |
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| Robust H-infinity control for constrained uncertain systems and its application to active suspension |
| Miaomiao MA,Hong CHEN,Xiangjie LIU |
| (School of Control and Computer Engineering, North China Electric Power University;Department of Control Science and Engineering, Jilin University) |
| Abstract: |
| This paper presents an LMI based robust H-infinity control scheme for constrained systems with normbounded uncertainties. The uncertainties are incorporated in the evaluation of the H-infinity norm and the time-domain constraints. The robust closed-loop properties inclusive of stability, H-infinity performance and the satisfaction of the timedomain constraints are discussed. Analysis and simulation results for a 2 DOF quarter-car model show possible improvements on ride comfort, while robustly respecting safety related constraints such as good road holding, limited suspension strokes and actuator saturation. |
| Key words: Constraints H-infinity performance LMI optimization Norm-bounded uncertainties Active suspension |
