Jin, Long

Li, Zhiguang

Shen, Zhan

Wang, Huai

English

This paper proposes an approximation model of the ac resistance for windings with partial layers. It introduces the concept of the number of layers for the partial winding without theoretical support. It is simple and with good accuracy compared to the original partial layer equation. The error between the approximation and original equation is derived and compared analytically. The approximation method is verified in two case studies with the finite elementmethod simulation (FEM) and experimental results. Based on the approximation equation, an optimization method is proposed for the winding with partial layers. It leads to the minimum ac resistance within the design restrictions, andis applicable for inductors and transformers. Finally, the optimization method is verified in a case study of a 20 kHz transformer winding design

An Approximation Model of AC Resistance for Inductor and Transformer Windings with Partial Layers

https://vbn.aau.dk/ws/files/335746855/JIA.pdf

An Approximation Model of AC Resistance for Inductor and Transformer Windings with Partial Layers

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