基于反电动势的无刷直流电动机驱动控制系统  

The Brushless DC Motor Drive Control System Based on Back Electromotive Force

作　　者：罗书克[1] 程现武 贾发军 LUO Shuke;CHENG Xianwu;JIA Fajun(School of Electrical Engineering,Xuchang University,Xuchang 461000,China;Yuzhou Power Supply Company of State Grid,Xuchang 461000,China;Xuchang Diance Intelligent Electric Power Equipment Co.,Ltd.,Xuchang 461000,China)

机构地区：[1]许昌学院电气工程学院,河南许昌461000 [2]国家电网禹州供电公司,河南许昌461000 [3]许昌电测智能电力装备有限公司,河南许昌461000

出　　处：《许昌学院学报》2025年第2期134-138,共5页Journal of Xuchang University

基　　金：河南省高等教育研究生教学改革研究与实践项目(2023SJGLX292Y)。

摘　　要：针对无刷直流电机转子位置传感器检测系统复杂,可靠性受传感器影响的问题.设计一种无感无刷直流电机驱动控制系统,取消位置检测的传感器,通过反电动势实现位置检测,通过主控芯片自带的比较器和移相电路实现换相点的确定.实验表明,该驱动控制系统具有运行平稳,调速平滑,可以在实际系统中推广应用.Regarding the complex detection system of brushless DC motor rotor position sensor,the reliability is affected by the sensor.This paper designs a sensorless brushless DC motor drive control system,which eliminates the position detection sensor and achieves position detection through back electromotive force.The commutation point is determined through the comparator and phase-shifting circuit built-in in the main control chip.The experiment shows that the drive control system has smooth operation and speed regulation,and thus can be widely applied in practical systems.

关 键 词：无刷直流电机 无传感器 反电动势 换相 

分 类 号：TM921[电气工程—电力电子与电力传动]