Short distance position control for linear switched reluctance motors: a plug-in robust compensator approach

Short distance position control (<1 mm) is an important issue in many precision position applications such as integrated circuit (IC) bonding machines. For these purposes, a novel linear switched reluctance motor (LSRM) is developed. The motor´s control strategy is based on a 20/spl times/20 look-up table force linearization scheme for low-cost implementation. The system performance is satisfactory for long and medium distance travels, but the system´s output should be further improved for short ones. In this paper, a plug-in robust compensator is proposed to improve the tracking response of the overall system. Simulation and experimental results are presented and compared to validate the proposed robust plug-in compensator.