Force tracking control for an electro-hydraulic actuator based on an intelligent feed forward compensator

Abstract

This article presents a scheme for the control of an electro-hydraulic passive force tracking system using the compound controller with an intelligent feed forward compensator (IFFC), which is designed as a test equipment to reproduce on-ground aerodynamics load for reverse thrust system on a certain kind of plain. Through detailed analysis, the mathematical and simulation models are established. Since the conventional proportion integration (PI) method is unsatisfactory due to its bad adaptability to the parametric uncertainties, an IFFC with an off-line self-tuning mechanism is proposed. The related simulations are made and the results show that the compound controller will have good performance after training even though the parameters of the PI part are not optimal. To validate the feasibility of the proposed control strategy, the experiments are carried out on an electro-hydraulic test platform and the experimental results demonstrate the effectiveness of the proposed controller with IFFC for different tracking tasks.

Keywords

electro-hydraulic actuator passive force tracking compound controller intelligent feed forward compensator reverse thrust system

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