TY - GEN
T1 - AC resistance Prediction of Litz Wire Planer Spiral Coil Based on Litz wire Loss Model
AU - Kawahara, S.
AU - Umetani, K.
AU - Hiraki, E.
N1 - Publisher Copyright:
© 2020 The Institute of Electrical Engineers of Japan.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/11/24
Y1 - 2020/11/24
N2 - The Litz wire is utilized to wireless power transfer system and induction heating according to has small AC resistance in high frequency. Prediction of AC resistance of the Litz wire is important for design optimization of the Litz wire, hence the recent study has proposed analytical AC resistance prediction model of the Litz wire. However, verification in practical coils using the Litz wire is still insufficient. The purpose of this paper is to verify the prediction accuracy of AC resistance using a full analytical model in a practical coil. For practical coil, planer spiral coils are selected, and AC resistance of the planer spiral coil is calculated by combining with the loss model and the FEM analysis. As a result, the Litz wire loss model is found to well predict the measured AC resistance of the Litz wire planer spiral coil, supporting the appropriateness of the Litz wire loss model.
AB - The Litz wire is utilized to wireless power transfer system and induction heating according to has small AC resistance in high frequency. Prediction of AC resistance of the Litz wire is important for design optimization of the Litz wire, hence the recent study has proposed analytical AC resistance prediction model of the Litz wire. However, verification in practical coils using the Litz wire is still insufficient. The purpose of this paper is to verify the prediction accuracy of AC resistance using a full analytical model in a practical coil. For practical coil, planer spiral coils are selected, and AC resistance of the planer spiral coil is calculated by combining with the loss model and the FEM analysis. As a result, the Litz wire loss model is found to well predict the measured AC resistance of the Litz wire planer spiral coil, supporting the appropriateness of the Litz wire loss model.
KW - Copper loss
KW - Finite-element method (FEM)
KW - Litz wire
KW - Proximity effect
UR - http://www.scopus.com/inward/record.url?scp=85099300281&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85099300281&partnerID=8YFLogxK
U2 - 10.23919/ICEMS50442.2020.9290802
DO - 10.23919/ICEMS50442.2020.9290802
M3 - Conference contribution
AN - SCOPUS:85099300281
T3 - 23rd International Conference on Electrical Machines and Systems, ICEMS 2020
SP - 1541
EP - 1546
BT - 23rd International Conference on Electrical Machines and Systems, ICEMS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 23rd International Conference on Electrical Machines and Systems, ICEMS 2020
Y2 - 24 November 2020 through 27 November 2020
ER -