Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system

Abstract The vertical stability of permanent magnet (PM) electrodynamic suspension (EDS) system with a passive damping plate is studied because of the well‐known under‐damped nature of the EDS suspension system. The passive damping plate is installed under the Halbach permanent magnet array. When th...

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Main Authors: Cheng Luo, Kunlun Zhang, Huixian Zhang
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12370
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author Cheng Luo
Kunlun Zhang
Huixian Zhang
author_facet Cheng Luo
Kunlun Zhang
Huixian Zhang
author_sort Cheng Luo
collection DOAJ
description Abstract The vertical stability of permanent magnet (PM) electrodynamic suspension (EDS) system with a passive damping plate is studied because of the well‐known under‐damped nature of the EDS suspension system. The passive damping plate is installed under the Halbach permanent magnet array. When the vehicle‐mounted Halbach array and passive damping plate move to cut the track conductive plate, the 2D eddy current force is derived by establishing equations of magnetic vector potentials and using the Maxwell stress tensor method. And a 2D finite‐element model (FEM) is built to validate the accuracy of the derived levitation force equation. Based on the derived levitation force equation, the vertical stability of the PM EDS system with a passive damping plate and the effects of the main parameters on the damping ratio are analysed.
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spelling doaj.art-ed7972b3eeba4029b6eb01b9076587602024-01-17T07:37:36ZengWileyIET Electric Power Applications1751-86601751-86792024-01-0118110711510.1049/elp2.12370Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension systemCheng Luo0Kunlun Zhang1Huixian Zhang2School of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaAbstract The vertical stability of permanent magnet (PM) electrodynamic suspension (EDS) system with a passive damping plate is studied because of the well‐known under‐damped nature of the EDS suspension system. The passive damping plate is installed under the Halbach permanent magnet array. When the vehicle‐mounted Halbach array and passive damping plate move to cut the track conductive plate, the 2D eddy current force is derived by establishing equations of magnetic vector potentials and using the Maxwell stress tensor method. And a 2D finite‐element model (FEM) is built to validate the accuracy of the derived levitation force equation. Based on the derived levitation force equation, the vertical stability of the PM EDS system with a passive damping plate and the effects of the main parameters on the damping ratio are analysed.https://doi.org/10.1049/elp2.12370dampingmagnetic fieldsmagnetic forcesmagnetic levitationstability
spellingShingle Cheng Luo
Kunlun Zhang
Huixian Zhang
Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
IET Electric Power Applications
damping
magnetic fields
magnetic forces
magnetic levitation
stability
title Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
title_full Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
title_fullStr Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
title_full_unstemmed Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
title_short Effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
title_sort effect of the passive damping plate on the vertical stability of permanent magnet electrodynamic suspension system
topic damping
magnetic fields
magnetic forces
magnetic levitation
stability
url https://doi.org/10.1049/elp2.12370
work_keys_str_mv AT chengluo effectofthepassivedampingplateontheverticalstabilityofpermanentmagnetelectrodynamicsuspensionsystem
AT kunlunzhang effectofthepassivedampingplateontheverticalstabilityofpermanentmagnetelectrodynamicsuspensionsystem
AT huixianzhang effectofthepassivedampingplateontheverticalstabilityofpermanentmagnetelectrodynamicsuspensionsystem