基于无桥Sepic PFC变换器的BLDC电机功率优化控制  

Optimal Power Control of BLDC Motor Based on Bridgeless Sepic PFC Converter

作　　者：谭魏明 李伦武 TAN Weiming;LI Lunwu(Nanjing Panda Electronics Co.,Ltd.,Nanjing 210002,China;Shenzhen Metro Operation Group Co.,Ltd.,Shenzhen 518400,China)

机构地区：[1]南京熊猫电子股份有限公司,江苏南京210002 [2]深圳地铁运营集团有限公司,广东深圳518400

出　　处：《电工技术》2022年第1期167-169,共3页Electric Engineering

摘　　要：介绍了一种用于无刷直流电机(BLDC Motor)供电的功率因数校正(PFC)电路,通过使用无桥Sepic PFC变换器,使得电能质量问题得到了改善。首先分析了无桥Sepic PFC电路的工作原理及换流状态,其次探讨了系统的控制方案,最后利用MATLAB/Simulink进行仿真和性能评估。通过对无桥Sepic PFC变换器与Boost PFC变换器的对比分析可知,所提方案可明显提高功率因数并降低输入电流的总谐波失真,使得无桥Sepic PFC转换器成为低功耗应用的有效替代解决方案。A power factor correction(PFC)circuit for brushless DC motor(BLDC motor)power supply is introduced.The power quality problem is improved by using a bridgeless Sepic PFC converter.Firstly,the working principle and commutation state of bridgeless SEPIC PFC circuit are analyzed.Secondly,the control scheme of the system is discussed.Finally,MATLAB/Simulink is used for simulation and performance evaluation.Through the comparative analysis of bridgeless SEPIC PFC converter and boost PFC converter,it can be seen that the proposed scheme can significantly improve the power factor and reduce the total harmonic distortion of input current,making bridgeless SEPIC PFC converter an effective alternative solution for low-power applications.

关 键 词：无桥Sepic PFC变换器 无刷直流电机 电能质量 

分 类 号：TM33[电气工程—电机]