Winding Design of Series AC inductor for Dual Active Bridge Converters

Conference paper (2018)

Authors

Zhan Shen Aalborg University
Huai Wang Aalborg University
Yanfeng Shen Aalborg University
Z. Qin DC systems, Energy conversion & Storage - EEMCS
Frede Blaabjerg Aalborg University
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
Parasitic capacitance Dual active bridge Series inductor Ac resistance
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Published Date

2018

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

The ac resistance and parasitic capacitance of the inductor are the primary considerations in the winding design for the dual-active bridge converter (DAB). They are dependent of up to four independent structure variables. The interactive restrictions between those variables makes the design difficult. In this paper, the core-related capacitances between the central limb, side limb, yoke and winding are derived, and a local optimization for it is proposed. Moreover, a total winding capacitance design method is proposed by mapping the four dimensional problem into two dimensions. The analysis and design are verified by finite element method simulations and experimental results on a 100 kHz prototype are performed.

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