文章基本信息

标题：A New Topology for Speed control of Sensor less BLDC Motor with Reduced Commutator Switches and Improved Input Power Factor
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作者：G. Venu ; Dr. S. Tara Kalyani
期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2014
卷号：3
期号：11
页码：9243-9247
出版社：IJECS
摘要：The Brushless Direct Current (BLDC) motors are one of the motor types rapidly gaining popularity. BLDC motors areused in aerospace applications, medical field, industrial automation equipment and instrumentation. As the name implies, BLDCmotors do not use brushes for commutation; instead, they are electronically commutated. This paper proposes a new optimizeddrive for speed control of BLDC motor, In this operation mode, it approximates a voltage follower and the line current followsthe line voltage waveform to a certain extent. The reduction in low-order harmonics and improved power factor is achievedwithout the use of any voltage or current sensors. The simplicity and reduced parts count of the proposed topology make it anattractive low-cost choice for many variable speed drive applications
关键词：about four key words separated by commas