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	Virtual flux in a three-level pulse width modulation rectifier
	Zhang Yingchao ; Zhao Zhengming ; Zhang Yongchang ; Lu Ting ; Yuan Liqiang
	2010-10-12 ; 2010-10-12
关键词	Experimental/ power control PWM rectifiers/ virtual flux three-level pulse width modulation rectifier sensorless control surge currents/ B1210 Power electronics, supply and supervisory circuits
中文摘要	Sensorless control gives higher reliability and economic benefits. This paper describes a method to calculate the virtual flux for a three-level pulse width modulation (PWM) rectifier. Then, two control strategies are given for a three-level pulse width modulation rectifier without power source sensors based on the virtual flux. Pre-calculation of the virtual flux and a soft-startup control scheme were used to reduce excessive surge currents during system startup. Experimental results show that the scheme can be easily applied to control a three-level pulse width modulation rectifier without power source voltage sensors, and that the startup current is reduced about 50% by the soft-start process.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82577]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Yingchao,Zhao Zhengming,Zhang Yongchang,et al. Virtual flux in a three-level pulse width modulation rectifier[J],2010, 2010.
APA	Zhang Yingchao,Zhao Zhengming,Zhang Yongchang,Lu Ting,&Yuan Liqiang.(2010).Virtual flux in a three-level pulse width modulation rectifier..
MLA	Zhang Yingchao,et al."Virtual flux in a three-level pulse width modulation rectifier".(2010).

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