Force and Velocity Ripple Reduction of the New Linear Motor

This study presents a new linear motor with an E-core stator and a homopolar permanent magnet (PM) mover. The velocity and force ripples of the motor are effectively reduced by an optimized structure and effective force compensation. Firstly, the mechanical structure, magnetic paths and operation pr...

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Autores principales:	Meiling Tang, Yu Zou, Shengxian Zhuang, Ka Wai Eric Cheng
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Cogging force force ripples force control fem linear motor Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/9630127d7d914ba1b0eab7836ada9da9
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id	oai:doaj.org-article:9630127d7d914ba1b0eab7836ada9da9
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spelling	oai:doaj.org-article:9630127d7d914ba1b0eab7836ada9da92021-12-01T00:00:29ZForce and Velocity Ripple Reduction of the New Linear Motor2169-353610.1109/ACCESS.2021.3123742https://doaj.org/article/9630127d7d914ba1b0eab7836ada9da92021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9591588/https://doaj.org/toc/2169-3536This study presents a new linear motor with an E-core stator and a homopolar permanent magnet (PM) mover. The velocity and force ripples of the motor are effectively reduced by an optimized structure and effective force compensation. Firstly, the mechanical structure, magnetic paths and operation principles are introduced. Force analysis is carried out via magnetic circuit method and finite element method (FEM). The magnetic structure of the motor is optimized to reduce the cogging force. Secondly, a force compensation approach is developed to control the velocity and reduce the force ripples of the motor. Parameter identification is employed for the force control to observe the force of the motor so as to compensate the force ripples. Finally, the velocity ripples and force ripples are calculated and measured by simulation and experimentation. Both the simulation and experimental results show high feasibility of the force compensation method. By optimizing the magnetic structure of the motor and developing the force compensation block of the control part, the estimated force output suggests that the force ripples of the motor can be limited within 5%.Meiling TangYu ZouShengxian ZhuangKa Wai Eric ChengIEEEarticleCogging forceforce ripplesforce controlfemlinear motorElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 156030-156042 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cogging force force ripples force control fem linear motor Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Cogging force force ripples force control fem linear motor Electrical engineering. Electronics. Nuclear engineering TK1-9971 Meiling Tang Yu Zou Shengxian Zhuang Ka Wai Eric Cheng Force and Velocity Ripple Reduction of the New Linear Motor
description	This study presents a new linear motor with an E-core stator and a homopolar permanent magnet (PM) mover. The velocity and force ripples of the motor are effectively reduced by an optimized structure and effective force compensation. Firstly, the mechanical structure, magnetic paths and operation principles are introduced. Force analysis is carried out via magnetic circuit method and finite element method (FEM). The magnetic structure of the motor is optimized to reduce the cogging force. Secondly, a force compensation approach is developed to control the velocity and reduce the force ripples of the motor. Parameter identification is employed for the force control to observe the force of the motor so as to compensate the force ripples. Finally, the velocity ripples and force ripples are calculated and measured by simulation and experimentation. Both the simulation and experimental results show high feasibility of the force compensation method. By optimizing the magnetic structure of the motor and developing the force compensation block of the control part, the estimated force output suggests that the force ripples of the motor can be limited within 5%.
format	article
author	Meiling Tang Yu Zou Shengxian Zhuang Ka Wai Eric Cheng
author_facet	Meiling Tang Yu Zou Shengxian Zhuang Ka Wai Eric Cheng
author_sort	Meiling Tang
title	Force and Velocity Ripple Reduction of the New Linear Motor
title_short	Force and Velocity Ripple Reduction of the New Linear Motor
title_full	Force and Velocity Ripple Reduction of the New Linear Motor
title_fullStr	Force and Velocity Ripple Reduction of the New Linear Motor
title_full_unstemmed	Force and Velocity Ripple Reduction of the New Linear Motor
title_sort	force and velocity ripple reduction of the new linear motor
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/9630127d7d914ba1b0eab7836ada9da9
work_keys_str_mv	AT meilingtang forceandvelocityripplereductionofthenewlinearmotor AT yuzou forceandvelocityripplereductionofthenewlinearmotor AT shengxianzhuang forceandvelocityripplereductionofthenewlinearmotor AT kawaiericcheng forceandvelocityripplereductionofthenewlinearmotor
_version_	1718406154277617664

Force and Velocity Ripple Reduction of the New Linear Motor

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