Research on Reduction the Torque Ripple in Switched Reluctance Motor

摘要

The switched reluctance motor (SRM) has been widely used in many different fields. The torque ripple of the SRM may cause the vibration of many parameters in SRM system. So it is important to reduce the torque ripple of the SRM. The current chopper control (CCC) technology and the direct torque control (DTC) technology for reduction the torque ripple of the SRM are studied in this paper. To further research the two kinds of control technology, the model of the SRM system is established and the simulation of the SRM system is carried out, The relationship of the instantaneous torque and the magnetic linkage of the motor stator is analysed according to the control principle of the SRM system. The results indicate that both the CCC and the DTC have very good effect on reducing and canceling torque ripple, and the DTC control action is better than that of the CCC in the aspect of inhibition of torque ripple. The study on reduce the torque ripple of the SRM has important the theoretical and practical meanings.