A Novel Method of High-speed Sensorless BLDC Motor Commutation Position Correction

被引：0
|
作者：
Wang, Qiang [1 ]
Li, Guang-you [1 ]
Lei, Yan-hua [2 ]
Ji, Fang [2 ]
Wang, Xing-hua [1 ]
机构：
[1] Shandong Univ, Sch Elect Engn, Jinan, Peoples R China
[2] China Acad Engn Phys, Beijing, Peoples R China
来源：
2015 INTERNATIONAL CONFERENCE ON ELECTRICAL AND ELECTRONICS: TECHNIQUES AND APPLICATIONS (EETA 2015) | 2015年
关键词：
Sensorless BLDC motor; Virtual neutral voltage; Commutation position correction;
D O I：
暂无
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In this paper, the relationship between the winding virtual neutral voltage and the turning-off winding back-EMF has been analyzed in the bipolar modulation and the analytic expression has been deduced accurately. Due to the existence of commutation position error, the virtual neutral voltage at 30 electrical angle before commutation is no longer equal to after commutation. There is virtual neutral voltage difference between before commutation and after commutation. The difference is only related with commutation position error and a novel method of position correction has been proposed. The difference can be used as the feedback to create a real time position correction system. Finally feasibility has been testified by experimental results.
引用
收藏
页码：129 / 133
页数：5
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