Torque Ripple Minimization of Switched Reluctance Motor Using Hysteresis Current Control

Abstract

Due to the reluctant effect that exists between the stator and the rotor and its conception, the torque of Switched Reluctance Motor (SRM) has a ripple waveform. Hence it is necessary to reduce these undulations, which are undesirable and harmful for a best fonctionnement of system. In order to minimize these undulations, we present in the follow paper the current hysteresis control of the SRM supplied with half-bridge asymmetrical inverter. This is realized with a right angles commutations choice of the power converter.

Comparative study of various current controllers for the switched reluctance machine

“…Several linear and nonlinear controllers that achieve high dynamic control can be found in a vast literature available on this topic. The most commonly used method to control the current in SRM is the hysteresis controller for its robustness, high dynamic range, easiness of implementation, and does not require any model of the system [7]. Its structure is very simple to implement and requires no knowledge of the electrical model of the machine, or special knowledge in automatic.…”