Current sensorless integral variable structure controller of synchronous reluctance motor

A synchronous reluctance motor driven by an integral variable structure controller for current sensorless is presented. The mathematical model for the synchronous reluctance motor includes core loss. We develop a maximum torque control strategy. The integral variable structure controller is used to reject the uncertain bounded disturbances and parameter variations. The voltage reference equation generates the require voltage from the torque command and the motor speed. The proposed controller is implemented using dSPACE DS1102 processor board. This system has a fast response and a good disturbance rejection capability. Experimental results show that the proposed controller is valid for the synchronous reluctance motor