: As a variable speed drive, the SRM has many attractive features which revived the interest in this drive after the development of fast power switching devices and digital controllers. SRM has rather simple construction and can be manufactured with low cost. Because of its high torque to inertia ratio and inherent speed controllability, it is currently considered as a valuable candidate as a principle drive for variable speed applications. The SRM also excels with high reliability and fault tolerance capability. The primary disadvantage of an SRM is the higher torque ripple compared with conventional machines, which contributes to acoustic noise and vibration. The origin of torque pulsations in a SRM is due to the highly nonlinear and discrete nature of torque production mechanism. The total torque in an SRM is the sum of torques generated by each of the stator phase, which are controlled independently. Torque pulsations are the most significant at the commutation instants when torque production mechanism is being transferred from one active phase to another. The minimization of the torque ripple is essential in high performance servo applications, which require smooth operation with minimum torque pulsations. There are essentially two primary approaches for reducing the torque pulsations: one method is to improve the magnetic design of the motor, while the other is to use sophisticated electronic control. Machine designers are able to reduce the torque pulsations by changing the stator and rotor pole structures, but only at the expense of motor performance. The electronic approach is based on selecting and optimum combination of the operating parameters, which include the supply voltage, turn-on and turn-off angle, current level and the shaft load. In a switched reluctance motor with available characteristics and with conventional asymmetric power electronic converter, it’s possible to reduce torque ripple with several methods such as nonlinear control, optimization control and direct torque control. DTC method has many advantages over other control methods such as simple algorithm, less torque ripple and needless to turn-on and turn-off angle.In this thesis, first, principles of direct torque control are studied and conventional DTC method for SRM in the base of comparing with AC motor is investigated, then a method for performance improving and copper loss reducing under direct torque control is proposed.At the end, simulation and experimental results for conventional and proposed method are obtained and compared. Simulation results with Simulink/MATLAB software are presented and analyzed.Also experimental results are achieved with SRM drive laboratory setup and simulation results are verified. Keywords: switched reluctance motor, direct torque control, Copper loss reduction, efficiency improvement.