A new Sensorless Control for the Switched Reluctance Machine

This paper presents a new method for determination of the rotor position of the switched reluctance machine (SRM). With this it is possible to eliminate the use of the positions encoder, which is usually necessary to control the SRM. The method is based on a machine model, which includes the phase voltage equation. It can be calculated in real time. Additionally for better dynamic performance a new digital control loop is proposed. The advantages of this method are simplicity, it requires low computation time, and it gives accurate sensorless rotor position for motor operation as well as generator operation