A low-cost shaft position tracking control for an 8/6 switched reluctance machine

This paper presents a low-cost shaft position tracking control for a switched reluctance motor (SRM). For this low-cost implementation a discrete sliding mode angular position control was applied based on the reaching law control (RLC) approach. The SRM logic command and controller algorithm are installed in a low-cost system based on a digital signal controller (dsPIC). The system was designed in order to not require any analog sensors, like current sensor or speed sensor, as well as any ADC or DAC converters. In this paper it is presented the discrete sliding mode control system design, the prototype implementation and experimental results in shaft tracking position control. This paper aims to highlight the SRM potentialities in angular position applications.