SELF-TUNING CONTROL OF A SWITCHED-RELUCTANCE MOTOR DRIVE WITH SHAFT POSITION SENSOR

The control of the switched-reluctance motor (SRM) is usually based on the inductance profiles as a function of position. This paper address es the problem of obtaining optimal performance from an SRM in the pre sence of parameter variation, which can alter the phase inductance pro files. The operation of an SRM drive in the controlled current mode fr om zero to base speed is considered. New self-tuning algorithms are pr esented which optimize the steady-state performance of the drive as me asured by torque per ampere (TPA). Computer simulations are employed t o show the existence and uniqueness of a solution to the optimal TPA p roblem. The application of the new control strategy is explained in th e content of a speed-controlled drive system. Experimental results are provided to demonstrate the validity of the self-tuning controller.