Brushless DC electric motor speed control and power factor correction using single-ended primary inductor converter

Abstract

In this treatise, Brushless DC electric motor (BLDC electric motor), Power Factor Correction (PFC), and control of speed using Single-Ended Primary Inductor Converter (SEPIC) are articulated. An original approach is proposed for the controlling of motor speed and PFC using SEPIC and managing the DC link voltages and also it provides a viable solution for driving applications. At AC mains, inherent power factor correction is achieved for speed control in wide range using SEPIC in discontinuous mode. The system is simulated in MATLAB and a result confirms the validity and feasibility.