Abstract:

Aiming at the problems of large torque ripple and slow reaction speed , which were exposed in the application process of mining electric locomotive speed control system based on SAM (switch reluctance machine),the paper proposed a new method of Switched Reluctance Drive.The method uses direct torque control to optimize switched reluctance motor torque, with the torque flux double closed loop control to realize direct torque control of Switched Reluctance Drive system. The simulation results show that the system has the advantages of small torque ripple and fast speed response In the process of operation.

Key words: SRM, Torque optimization, DTC, mining electric locomotive, Double-loop control