“E王E”形耦合电感器的设计及其在交错并联磁集成双向DC-DC变换器中的应用

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Abstract In order to overcome the disadvantages of traditional EE coupled inductor’s that the distributions of the air gaps were too concentrated, the distributions of the magnetic pressure and flux were not uniform, and the air gaps were too nearly to the windings, this paper proposes a structure of “E 王 E” shape coupled inductors and sets up its magnetic models and gives the design method. It is proved that in the “E 王 E” structure, a parallel connection air gap magnetic circuit is increased to make the distributions of the magnetic pressure and flux more uniform, the reluctance smaller, the inductance and strength of coupling larger, and the air gaps are far away from the windings to reduce the air gaps’ diffusion flux and bypass flux and eddy current loss. The windings are wrapped around the central poles which has smaller length-width ratio to reduce the wingding’s length. The magnetic models and the design method could be used to design the “E 王 E” shape coupled inductors. When the “E 王 E” shape coupled inductors are used to interleaving magnetic integration bidirectional DC-DC converter, the ripple wave of the output voltage is smaller, the wave form of the inductor current is smoother, and the peak current is smaller when the switch are turned on and turned off, meanwhile the efficiency of circuit light load is greatly improved.

Key words： “E 王 E” shape coupled inductors diffusion flux and bypass flux magnetic circuit model and design method interleaving magnetic integration bidirectional DC-DC converter

Received: 20 March 2013 Published: 13 April 2015

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	Yang Yugang
	Ye Jingyuan
	Ning Haoxuan
	Ma Jie

Cite this article:

Yang Yugang,Ye Jingyuan,Ning Haoxuan等. Design of “E王E” Shape Coupled Inductors and Its Application in Interleaving Magnetic Integrated Bidirectional DC-DC Converter[J]. Transactions of China Electrotechnical Society, 2015, 30(4): 88-97.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I4/88

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