Research on filter's for Back EMF zero-crossing detecting in sensorless BLDC motor drives

被引：0
|
作者：
Li, Q [1 ]
Lin, MY [1 ]
Hu, MQ [1 ]
Gu, WG [1 ]
机构：
[1] Southeast Univ, Dept Elect Engn, Nanjing 210096, Peoples R China
来源：
ICEMS 2005: PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-3 | 2005年
关键词：
D O I：
暂无
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：
In sensorless operation of brushless DC motor drives, a typical method called "Back EMF method", is sampled to detect the induced EMF zero-crossing of the unexcited winding. The filters are used to eliminate high frequency components of the terminal voltages and to extract Back ENIF of the motor. In this paper, FFT analyses of terminal voltage contents of the BLDC motor are presented. The-principles of filters are introduced, and two kinds of filters, a passive band-pass filter and an active low-pass filter, are designed for BLDC motor drives. The study shows that the theoretical analysis is coincide with that of the experiments.
引用
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页码：1899 / 1902
页数：4
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