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Fixed-Order Control of Active Suspension: A Hybrid Approach

Authors:Farag Adel, Technical University Hamburg Harburg, Germany
Werner Herbert, Technical University Hamburg Harburg, Germany
Topic:2.1 Control Design
Session:Control Design I
Keywords: H_infity control, Low order control, Riccati Equation, Genetic algorithms.

Abstract

This paper considers the design of a controller for an active suspension system benchmark problem. For a plant model of 27th order, a 5th order controller that meets performance specifications in terms of sensitivity and control sensitivity is designed, using a novel Hybrid Evolutionary-Algebraic approach to low-order mixed-sensitivity design. This method combines evolutionary techniques and algebraic solvers at the lowest level. Simulation results demonstrate that a performance superior to that of previously published results can be achieved.