Research of Position Sensorless for Switched Reluctance Motor

Through the analysis of the winding voltage equation, winding magnetic flux, inductance and electromotive force parameters such as analytical form, a method of non-position examination plan based on the inductance model was proposed, thus an observing rotor position method was determined. Through resolving the functional relations between some electrical parameters and the rotor position angle of SRM, the information of the rotor position was achieved. A simulation model based on indirect position examination plan and a current chopped control system based on the inductance model of SRM were established. The simulation results indicate that this method is practicable.