基于锁相环的无刷直流电机无位置传感器控制技术研究  

The Self-starting and Control Strategy of Sensorless Brushless DC Motor

作　　者：王茗倩[1] 吴红亚[1] 曹帅[1] WANG Ming-qian;WU Hong-ya;CAO Shuai(School of Information Engineering,Changzhou Vocational Institute of Mechatronic Technology,Changzhou213164,China)

机构地区：[1]常州机电职业技术学院信息工程学院,常州213164

出　　处：《齐鲁工业大学学报》2019年第1期60-64,共5页Journal of Qilu University of Technology

基　　金：国家自然科学基金(61503161);江苏省产学研前瞻性联合研究项目(BY2016073-01)

摘　　要：针对无刷直流电机无传感器控制系统中存在噪声高、转矩脉动大、易造成速度波动、引起谐振等问题,本文提出一种基于锁相环的无刷直流电机无传感器控制方法。通过状态观测器观测出反电动势,通过锁相环对反电动势进行滤波,提取出准确稳定的转子位置和转速。实验结果表明,该方法具有良好的稳定性、可行性和一定的抗干扰能力。To solve some problems found in sensorless control system of brushless DC motor,such as high noise,large torque ripple,easy speed fluctuation and resonance,this paper proposes a control method based on phase-locked loop.In this method,the back electromotive force is observed by the state observer and then filtered by the phase locked loop to extract an accurate and stable rotor position and rotational speed.Experimental results show that this method has good stability,feasibility and certain anti-interference ability.

关 键 词：无刷直流电机 无传感器控制 状态观测器 锁相环 

分 类 号：TM301[电气工程—电机]