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	Direct rotor position detection method for sensorless brushless DC motors
	Zhang Lei ; Xiao Wei ; Qu Wenlong
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ brushless DC motors motor drives rotors/ direct rotor position detection sensorless brushless DC motor drives rotor position sensors back electromotive force zero-crossing point floating phase terminal/ B8320 d.c. machines B8510 Drives
中文摘要	Rotor position sensors are eliminated in a rotor position detection method developed for sensorless, brushless DC motor drives. This method directly extracts the true back electromotive force (EMF) zero-crossing point by detecting the voltage difference between the floating phase terminal and the midpoint in the DC link. The commutation signal of the floating phase is obtained by lagging the back EMF zero-crossing point 30 degrees . The method provides good motor performance over a wide speed range, especially at lower speeds. Experimental results from a prototype brushless DC motor verify the analytical results and confirm the validity of the method.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22074]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Lei,Xiao Wei,Qu Wenlong. Direct rotor position detection method for sensorless brushless DC motors[J],2010, 2010.
APA	Zhang Lei,Xiao Wei,&Qu Wenlong.(2010).Direct rotor position detection method for sensorless brushless DC motors..
MLA	Zhang Lei,et al."Direct rotor position detection method for sensorless brushless DC motors".(2010).

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