Performance analysis of BLDC motor on sinusoidal and square wave supply

The aim of this paper is to compare performances of brushless DC (BLDC) motor on two different inverter control strategies. Sinusoidal and square wave are individually applied to the motor and characteristics are studied. A prototype inverter fed BLDC motor drive is designed and developed. DSP dsPIC30F3011 along with MPLAB IDE software is used for generation of firing pulses for each type of inverter control strategy. The drive is tested first on square wave inverter fed supply and then on state vector modulation (SVM) inverter fed supply. The proposed control strategies are simulated in MATLAB/Simulink and simulation results are validated with hardware. Experimental and simulated results are also compared for performances of complete BLDC motor drive.