A Unified Approach to Zero-Crossing Point Detection of Back EMF for Brushless DC Motor Drives without Current and Hall Sensors

被引：56
|
作者：
Lai, Yen-Shin [1 ]
Lin, Yong-Kai [1 ]
机构：
[1] Natl Taipei Univ Technol, Dept Elect Engn, Ctr Power Elect Technol, Taipei 10608, Taiwan
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2011年 / 26卷 / 06期
关键词：
Brushless dc motor (BLDCM) drives; pulsewidth modulation (PWM); REDUCTION; 4-SWITCH;
D O I：
10.1109/TPEL.2010.2081379
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The main theme of this paper is to present a unified approach to back electromotive force (EMF) detection of brushless dc motor (BLDCM) drives without using any current and Hall sensors. Pulsewidth modulation (PWM) techniques and theoretical analysis of back EMF detection are presented, and followed by the proposed unified back EMF detection method. It will be shown that the back EMF detection depends upon the PWM techniques and the method is required to be slightly modified as the PWM technique is changed. Experimental results derived from BLDCM drives without using any current and Hall sensors fully confirm the theoretical analysis.
引用
收藏
页码：1704 / 1713
页数：10
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