Linear Permanent Magnet Eddy Current Brake for Overwinding Protection

Overwinding protection devices are used to brake hoisting containers before these containers reach a limited height, thereby preventing the hoisting containers from impacting the hoisting system. However, in ultra-deep shafts (depth > 1000 m), traditional overwinding protection methods fail t...

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Main Authors: Panpan Yang, Gongbo Zhou, Zhencai Zhu, Chaoquan Tang, Zhenzhi He, Penghui Wang
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8664651/
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author Panpan Yang
Gongbo Zhou
Zhencai Zhu
Chaoquan Tang
Zhenzhi He
Penghui Wang
author_facet Panpan Yang
Gongbo Zhou
Zhencai Zhu
Chaoquan Tang
Zhenzhi He
Penghui Wang
author_sort Panpan Yang
collection DOAJ
description Overwinding protection devices are used to brake hoisting containers before these containers reach a limited height, thereby preventing the hoisting containers from impacting the hoisting system. However, in ultra-deep shafts (depth > 1000 m), traditional overwinding protection methods fail to protect the hoisting system, because this type of hoisting system has a greater mass, kinetic energy, and inertia than the traditional hoisting system, and also the environment of ultra-deep shafts is more complex. This paper presents a novel overwinding protection method that applies a linear permanent magnet eddy current brake (LPMECB) to the hoisting system in ultra-deep shafts. This paper also finds the optimum setting parameter of permanent magnets (PMs). First, an analytical model of the LPMECB is built, and the time-domain signals of the braking force are processed via fast Fourier transform, confirming the mechanism of the optimum setting parameter. Subsequently, the simulations are conducted by establishing a finite-element model of the LPMECB; the simulations prove the existence of the optimum setting parameter of PMs and demonstrate the influence of the air gap, velocity, and conductivity on this parameter. Finally, the experimental studies are carried out on a test bench of the LPMECB to validate the analytical model and the simulation results. The results show the existence of the optimum setting parameter of PMs and prove that the air gap has an effect on this parameter.
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spelling doaj.art-313e739c9eed4bd29fe1586f0c8d45052022-12-21T23:48:41ZengIEEEIEEE Access2169-35362019-01-017339223393110.1109/ACCESS.2019.29028928664651Linear Permanent Magnet Eddy Current Brake for Overwinding ProtectionPanpan Yang0https://orcid.org/0000-0001-8380-8221Gongbo Zhou1https://orcid.org/0000-0001-9759-1895Zhencai Zhu2Chaoquan Tang3https://orcid.org/0000-0003-1641-9845Zhenzhi He4Penghui Wang5Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaJiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaJiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaJiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaSchool of Mechanical and Electrical Engineering, Jiangsu Normal University, Xuzhou, ChinaJiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, ChinaOverwinding protection devices are used to brake hoisting containers before these containers reach a limited height, thereby preventing the hoisting containers from impacting the hoisting system. However, in ultra-deep shafts (depth > 1000 m), traditional overwinding protection methods fail to protect the hoisting system, because this type of hoisting system has a greater mass, kinetic energy, and inertia than the traditional hoisting system, and also the environment of ultra-deep shafts is more complex. This paper presents a novel overwinding protection method that applies a linear permanent magnet eddy current brake (LPMECB) to the hoisting system in ultra-deep shafts. This paper also finds the optimum setting parameter of permanent magnets (PMs). First, an analytical model of the LPMECB is built, and the time-domain signals of the braking force are processed via fast Fourier transform, confirming the mechanism of the optimum setting parameter. Subsequently, the simulations are conducted by establishing a finite-element model of the LPMECB; the simulations prove the existence of the optimum setting parameter of PMs and demonstrate the influence of the air gap, velocity, and conductivity on this parameter. Finally, the experimental studies are carried out on a test bench of the LPMECB to validate the analytical model and the simulation results. The results show the existence of the optimum setting parameter of PMs and prove that the air gap has an effect on this parameter.https://ieeexplore.ieee.org/document/8664651/Eddy current brakelinear permanent magnetoverwinding protection
spellingShingle Panpan Yang
Gongbo Zhou
Zhencai Zhu
Chaoquan Tang
Zhenzhi He
Penghui Wang
Linear Permanent Magnet Eddy Current Brake for Overwinding Protection
IEEE Access
Eddy current brake
linear permanent magnet
overwinding protection
title Linear Permanent Magnet Eddy Current Brake for Overwinding Protection
title_full Linear Permanent Magnet Eddy Current Brake for Overwinding Protection
title_fullStr Linear Permanent Magnet Eddy Current Brake for Overwinding Protection
title_full_unstemmed Linear Permanent Magnet Eddy Current Brake for Overwinding Protection
title_short Linear Permanent Magnet Eddy Current Brake for Overwinding Protection
title_sort linear permanent magnet eddy current brake for overwinding protection
topic Eddy current brake
linear permanent magnet
overwinding protection
url https://ieeexplore.ieee.org/document/8664651/
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AT gongbozhou linearpermanentmagneteddycurrentbrakeforoverwindingprotection
AT zhencaizhu linearpermanentmagneteddycurrentbrakeforoverwindingprotection
AT chaoquantang linearpermanentmagneteddycurrentbrakeforoverwindingprotection
AT zhenzhihe linearpermanentmagneteddycurrentbrakeforoverwindingprotection
AT penghuiwang linearpermanentmagneteddycurrentbrakeforoverwindingprotection