A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect

Abstract This paper proposes modelling on the transmission torque of an eddy‐current axial magnetic coupling (EAMC) considering the thermal effect. A new and simple equivalent reluctance network is established to obtain the magnetic flux density based on the two‐dimensional (2D) finite‐element analy...

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Main Authors: Xikang Cheng, Wei Liu, Weiqi Luo, Minghao Sun, Yang Zhang
Format: Article
Language:English
Published: Wiley 2022-04-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12165
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author Xikang Cheng
Wei Liu
Weiqi Luo
Minghao Sun
Yang Zhang
author_facet Xikang Cheng
Wei Liu
Weiqi Luo
Minghao Sun
Yang Zhang
author_sort Xikang Cheng
collection DOAJ
description Abstract This paper proposes modelling on the transmission torque of an eddy‐current axial magnetic coupling (EAMC) considering the thermal effect. A new and simple equivalent reluctance network is established to obtain the magnetic flux density based on the two‐dimensional (2D) finite‐element analysis. Furthermore, the expressions of the transmission torque and the thermal loss are derived by establishing the computational coordinate system for the conductor sheet (CS) eddy current. Then, a simple and effective thermal network considering different convective heat transfer modes is presented to obtain the temperature rise, and the influence of temperature on some key parameters is given to correct the transmission torque. Furthermore, the proposed modelling is in good agreement with the three‐dimensional (3D) finite‐element method (FEM) and experiments under normal working conditions. Moreover, some suggestions for the design and optimization of EAMCs are provided.
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spelling doaj.art-7c928d16889346aabe25a43f60ac47fe2022-12-22T04:36:44ZengWileyIET Electric Power Applications1751-86601751-86792022-04-0116443444610.1049/elp2.12165A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effectXikang Cheng0Wei Liu1Weiqi Luo2Minghao Sun3Yang Zhang4School of Mechanical Engineering Dalian University of Technology Dalian ChinaSchool of Mechanical Engineering Dalian University of Technology Dalian ChinaSchool of Mechanical Engineering Dalian University of Technology Dalian ChinaSchool of Mechanical Engineering Dalian University of Technology Dalian ChinaSchool of Mechanical Engineering Dalian University of Technology Dalian ChinaAbstract This paper proposes modelling on the transmission torque of an eddy‐current axial magnetic coupling (EAMC) considering the thermal effect. A new and simple equivalent reluctance network is established to obtain the magnetic flux density based on the two‐dimensional (2D) finite‐element analysis. Furthermore, the expressions of the transmission torque and the thermal loss are derived by establishing the computational coordinate system for the conductor sheet (CS) eddy current. Then, a simple and effective thermal network considering different convective heat transfer modes is presented to obtain the temperature rise, and the influence of temperature on some key parameters is given to correct the transmission torque. Furthermore, the proposed modelling is in good agreement with the three‐dimensional (3D) finite‐element method (FEM) and experiments under normal working conditions. Moreover, some suggestions for the design and optimization of EAMCs are provided.https://doi.org/10.1049/elp2.12165eddy‐current axial magnetic coupling (EAMC)permanent magnet (PM)reluctancethermal effecttransmission torque
spellingShingle Xikang Cheng
Wei Liu
Weiqi Luo
Minghao Sun
Yang Zhang
A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
IET Electric Power Applications
eddy‐current axial magnetic coupling (EAMC)
permanent magnet (PM)
reluctance
thermal effect
transmission torque
title A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
title_full A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
title_fullStr A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
title_full_unstemmed A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
title_short A simple modelling on transmission torque of eddy‐current axial magnetic couplings considering thermal effect
title_sort simple modelling on transmission torque of eddy current axial magnetic couplings considering thermal effect
topic eddy‐current axial magnetic coupling (EAMC)
permanent magnet (PM)
reluctance
thermal effect
transmission torque
url https://doi.org/10.1049/elp2.12165
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