Automatic Turn-off Angle Control for High Speed SRM Drive

This paper present a new approach to the automatic control of the turn-off angle used to excite the Switched Reluctance Motor (SRM) for electric vehicle (EV). The controller selects the turn-off angle that supports the most speed operation of the motor drive system. This control consists of classical current control and speed control depends on lookup table to take best result of the motor. The turn-on angle of the main switches of inverter is fixed at 0° and the turn-off angle is variable depend on the reference speed. The motor, inverter and control system are modeling in Simulink to demonstrate the operation of the system.