电工技术学报  2017, Vol. 32 Issue (5): 105-112    DOI:
电力电子与电力传动 |
基于高精度电感法的无刷直流电机起动及反电动势同步检测稳定性研究
弓箭,廖力清,叶冰清
中南大学信息科学与工程学院 长沙 410083
Brushless DC Motor Starting Based on High Precision Inductance Method and Study on the Stability of BEMF Synchronous Detection
Gong Jian,Liao Liqing,Ye Bingqing
College of Information Science and Engineering Central South University Changsha 410083 China
全文: PDF (2803 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 提出了一种基于电感法的高精度定位方案,在不增加定位电流脉冲数量的基础上将定位精度由原先的60°电角度提高至30°电角度,并消除了电机因工艺问题导致的相绕组参数不一致对检测的影响。设计了一种新颖的切换算法,可在极短时间内稳定可靠地切换到闭环。讨论了反电动势的同步检测方案,通过理论分析和仿真对比了PWM导通和PWM关断时刻检测反电动势过零信号方法的区别,并对干扰因素提出了补偿方案。样机实验验证了所提方案的稳定性和可靠性。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
弓箭
廖力清
叶冰清
关键词 无刷直流电机无位置传感器控制高精度电感法同步检测    
Abstract:A high accuracy positioning scheme based on the inductance method is proposed. The positioning accuracy is raised to 30 degrees from 60 degrees without increasing the number of positioning current pulses and it also eliminates the influence on testing caused by no consistent phase winding parameter because of the problem of motor technology. A novel switching algorithm is designed, which can be used to switch the motor to closed loop in a relatively short time reliably. A synchronous detect scheme of counter electromotive force is also discussed in this paper. We compare the difference between detecting counter electromotive force cross-zero signal at PWM-ON and at PWM-OFF by analysis, simulation and experiment, after that, we propose the compensation scheme for the interference factors. The stability and reliability of the proposed scheme are verified by the prototype test.
Key wordsBrushless DC motor    sensorless control    high precision inductance method    synchronous detection   
收稿日期: 2015-10-10      出版日期: 2017-03-22
PACS: TM33  
通讯作者: 弓 箭 男,1991年生,硕士研究生,研究方向为电力电子与电力传动。E-mail:jamesdeep@qq.com   
作者简介: 廖力清 男,1965年生,教授,研究方向为电力电子与电力传动。E-mail:zdh-dqkz@csu.edu.cn
引用本文:   
弓箭,廖力清,叶冰清. 基于高精度电感法的无刷直流电机起动及反电动势同步检测稳定性研究[J]. 电工技术学报, 2017, 32(5): 105-112. Gong Jian,Liao Liqing,Ye Bingqing. Brushless DC Motor Starting Based on High Precision Inductance Method and Study on the Stability of BEMF Synchronous Detection. Transactions of China Electrotechnical Society, 2017, 32(5): 105-112.
链接本文:  
https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I5/105