A robust controller design for aircraft
Keywords:
Flight control, Robust controller, Mixed sensitivity approach, Loop-shaping design, Robust performanceAbstract
This paper is concerned with the design of a robust controller for the longitudinal flight dynamics of an aircraft control system. The design objective is to achieve robust stability and good dynamic performance against the variation of aircraft parameters. The design is based on the framework of linear parameter-varying systems where the aircraft forward speed is considered to be a real uncertainty parameter. The controller synthesis is aimed at maintaining robust dynamic performance for frozen values of the aircraft forward speed in a specified operating range. The proposed robust controller is implemented using the robust control toolbox in Matlab. Simulation results verify the performance of the proposed controller for the aircraft control system with respect to different values of the aircraft forward speeds.
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