A Scheme for Torque Ripple Minimization in BLDC Drive Using Two-Inductor Boost Converter

Abstract

This paper presents a two-inductor boost converter fed brushless DC (BLDC) motor drive. In this work, a two-inductor boost converter is implemented with the BLDC motor drive for torque ripple reduction. The presence of torque ripple prevents application of BLDC motor drive in high precision works. The two-inductor boost converter used here provides very high gain at comparatively much lower duty ratio, thus eliminating the requirement of higher duty ratio for higher voltage gain. The proposed topology of the BLDC drive has been implemented using MATLAB Simulink. The Fast Fourier Transform (FFT) analysis has been performed on the proposed BLDC motor drive. Also, a comparative analysis of the proposed drive has been presented with SEPIC converter-based BLDC motor drive.