A Bridgeless Landsman Converter Fed Sensorless Brushless DC Motor Drive For Upgrading The Quality of Power

Abstract

This paper presents the upgradation of quality of power using a bridgeless landsman converter fed SBLDC motor drive. The designed regulator operates in intermittent inductor current mode and used to attain a close to unity power factor at supply ends. The speed of the SBLDC drive is maintained using a sensorless technique where the BLDC is fed through a bridgeless regulator. Moreover, usage of BL regulator provides minimal conduction losses as the diode rectifier is eliminated partially. The proposed design shows a substantial improvement in the efficiency compared with the existing system. The achieved quality of power indices that the limits are under various international standards like IEC and IEEE.