An approach for commutation current ripple alleviation in BLDCM drive using novel DC-DC converter

Brushless direct current motors (BLDCMs) have gained widespread favour in several applications, including residential, business, and industrial settings. In comparison to other drives, such as induction motor, DC, and synchronous motor drives, the BLDCM drives offer better performance. However, the BLDCM drive's use is constrained by the significant problem of commutation current ripples (CCRs). These ripples are mostly caused by phase winding inductance. Unnecessary speed variations, oscillation, noise, and vibration are introduced by the CCR. To alleviate the CCR, a novel BLDCM drive based on DC-DC converters has been designed in this paper. Wide voltage gain is offered by the suggested DC-DC converter, along with minimal conduction losses. The regulated DC-bus voltage is drawn in the suggested topology configuration using a DC-DC converter, which creates an equal slope (slew rate) of the incoming and departing phase currents. Within the MATLAB/Simulink software environment, the suggested model is tested. Additionally, an experimental prototype has developed to confirm the viability of the suggested technique. Copyright © 2024 Inderscience Enterprises Ltd.