Four switches direct power control of BLDC motor with trapezoidal back-EMF

Abstract

In this paper a new technique with 4 switches inverter for BLDC motor control in constant torque region is proposed. Using this method, prices and losses is reduced. The proposed direct power control has fast dynamic response and easy implementation. The feasibility of the proposed control method is developed and analyzed using MATLAB/SIMULINK. The results verify the effectiveness of the proposed method.