Analysis and position control of a linear switched reluctance actuator based on sliding mode control

This paper presents the finite elements analysis and the control of a linear switched reluctance actuator (LSRA). The energy conversion process is described, and based on a finite elements analysis, both traction and attraction maps are derived. This information is useful to understand the device working principle and its performance for different excitation and position conditions. The proposed control strategy, based on sliding mode control techniques, and the electronics used to proper drive the actuator are described and implemented with the TMS320F2812 eZdsp Start Kit. Control implementation takes advantage of the microprocessor internal peripherals and resources. Finally, experimental results are presented and discussed for the validation of proposed control strategy.