Improvement of Power Factor by AdoptingConventional and Bridgeless PFC for ClosedLoop Control of PMBLDC Motor

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

A. D. KULKARNI¹  T.ANANTHAPADMANABHA¹  DEEPA HIREMATHA¹  R. RADHA¹ 

[1] Dept. of E&E, National Institute of Engineering

关键词: Power factor correction (PFC);    PMBLDC motor;    Hall sensors;    bridgeless PFC Converter.;   

来源: Research & Reviews

【 摘 要 】

In this paper Simulation of a voltage controlled VSI fed PMBLDC motor is presented. In this work a bridgeless PFC boost rectifier is proposed to reduce harmonic current of a BLDC motor. The aim of the work is to improve the input power factor of PMBLDC drive. Conventional VSI fed BLDC motor suffers from the poor power factor, increased total harmonic distortion, high conduction loss in the input rectifier-bridge. Improved power factor, reduced THD,higher efficiency can be achieved by using the bridgeless boost topology. Conventional bridged PFC topology is replaced by bridgeless PFC topology which ensures near unity power factor. The proposed speed control scheme has the concept of DC link voltage control proportional to the desired speed of the PMBLDC motor. The speed is regulated by a PI controller. In this paper Performance comparison between the conventional VSI (with and without pre regulator circuit) fed BLDC motors and the bridgeless PFC converter fed BLDC motor are presented. The simulation study reveals that the input power factor in bridgeless PFC converter fed PMBLDC motor is improved and generate less THD when compared with Conventional VSI fed PMBLDC motor.

【 授权许可】

Unknown