物理与工程2025，Vol.35Issue(2)：30-37,8.
单芯、多芯线圈涡流损耗的解析计算、仿真计算及实验
ANALYTICAL CALCULATION,SIMULATION CALCULATION AND EXPERIMENT OF EDDY CURRENT LOSS OF SINGLE-CORE AND MULTI-CORE COILS
摘要
Abstract
As an important internal structure of a super magnetostrictive transducer,the re-sistance loss caused by the eddy current effect in the working state of multi-coil cannot be ig-nored.The mechanism of eddy current loss of single-core and multi-core coils is not the same.The resistance loss of single-core coils is mainly dominated by the skin effect,while the resist-ance loss of multi-core coils is influenced by both the skin effect and the proximity effect.In this paper,based on Maxwell's equations and eddy current effect,the analytical calculation formula of the resistance loss of single-core and multi-core coils is derived,and the finite ele-ment method is used to study the loss of single-core and multi-core coils under different ultra-sonic frequency bands under the same current and the same cross-sectional area,and finally based on the principle of pure resistance of the circuit in the resonant state of RLC series cir-cuit,the AC resistance of single-core and multi-core coils is measured,and the eddy current loss of the coil is obtained by combining the calculation formula of the loss power.The experimental re-sults are consistent with the simulation results and analytical calculation results,verifying the effec-tiveness of the analytical calculation formula and experimental method for coil power loss.关键词
电阻损耗/趋肤效应/邻近效应/有限元仿真Key words
resistance loss/skin effect/proximity effect/finite element simulation引用本文复制引用
朱昊昕,贺西平,廖迈伟..单芯、多芯线圈涡流损耗的解析计算、仿真计算及实验[J].物理与工程,2025,35(2):30-37,8.基金项目
国家自然科学基金(12174131). （12174131）
