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	The experimental analysis of DC pre-excitation for 3-level inverter-motor system
	Bai Hua ; Zhao Zheng-ming ; Hu Xian ; Chen Xin
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ exciters induction motors invertors/ DC preexcitation 3-level inverter-motor system AC adjusting speed system current impulse starting process power electronics device three-level topology electromagnetic torque flux linkage inverter-motor system high voltage high power inverter 380 V 160 kW/ B8310E Asynchronous machines B8360 Power convertors and power supplies to apparatus/ voltage 3.8E+02 V power 1.6E+05 W
中文摘要	In the AC adjusting speed system, the significant current impulse frequently occurs in the starting process while the output torque is sufficient. This would damage the power electronics device, cause the unbalance of neutral point in three-level NPC topology, and deteriorate the starting performance. In this paper, a DC pre-excitation strategy, which limits the starting current and enhances the electromagnetic torque via establishing the flux linkage before starting process, is proposed to the three-level inverter under analysis on the mechanism of the above large current. The relevant experiments present its eminent effect on the 380 V/160 kW inverter-motor system. Also this paper discuss the feasibility of its application in high voltage high power inverter.
语种	中文 ; 中文
出版者	Chinese Soc. Electr. Eng ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21970]
专题	清华大学
推荐引用方式 GB/T 7714	Bai Hua,Zhao Zheng-ming,Hu Xian,et al. The experimental analysis of DC pre-excitation for 3-level inverter-motor system[J],2010, 2010.
APA	Bai Hua,Zhao Zheng-ming,Hu Xian,&Chen Xin.(2010).The experimental analysis of DC pre-excitation for 3-level inverter-motor system..
MLA	Bai Hua,et al."The experimental analysis of DC pre-excitation for 3-level inverter-motor system".(2010).

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