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Linear variable reluctance (LVR) motors have been a strong candidate to provide linear motion for high-performance applications without mechanical transmission. The goal of this paper is to design and implement an adaptive sliding mode position control of the LVR motor to enhance the system robustness and to achieve high accuracy for high-precision applications. The designed controller consists of: (i) the inner force control loop based on sinusoidal flux model for simplicity and computational efficient and (ii) the outer position control based on adaptive sliding mode control which is robust to parameter variations and external force disturbance. The experimental results clearly show that the proposed controller is suitable for controlling the LVR motor system for high accuracy applications and effective for reducing the chattering.
Date of Conference: 10-13 Oct. 2010