Abstract
This paper proposes a two-phase conduction Direct Torque Control (DTC) scheme for three-phase Brushless DC (BLDC) Motor in the constant torque region. The use of Matrix Converter (MC) produces rectangular output currents, while maintaining sinusoidal input currents close to unity power factor. The implemented scheme reduces the torque dip in the BLDC motor. The merits of the matrix converter fed BLDC motor is shown by comparing the results with a conventional AC-DC-AC converter fed BLDC, both implementing two-phase conduction DTC. A model based on Matlab/Simulink is implemented to verify the above-proposed theory.
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