Six Step Control vs Direct Torque Control comparative evaluation for BLDC drive

Abstract

This research paper deals with the two closed loop speed control algorithms namely Six-Step and Direct Torque Control for Brushless DC Motor Drive. These two control techniques are critically evaluated for the performance comparison in terms of efficiency, steady state response and transient condition. The simulation models of the two controllers are developed in MATLAB/SIMULINK environment. The simulation results show close agreements and provide good insight for the evaluation of these two control techniques.