SEPIC-Converter Based BLDC-Motor-Drive with Power-Factor-Correction and Minimization in Torque Ripple

This paper describes a performance boost for something like a SEPIC Power Factor Correction (PFC) converters focused on VSI-fed PMBLDC-fed adjustable velocity voltage. The PFC combines the full SEPIC bridge rectifier with a particular phase AC-DC conversion to achieve a near consistent power factor across a broad range of speeds. This recommended variable speed methodology assumes that DC power management is commensurate with the engine speed PMBLDC. Speed modulation uses a PI controller. This drive ensures great accuracy and permits high-speed operation from near-zero. This section offers a concise summary of the techniques used to monitor the understand the potential of the cascaded SEPIC-Converter.