Cargando…

Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface

In the linear and planar motors, the 1D Halbach magnet array is extensively used. The sinusoidal property of the magnetic field deteriorates by analyzing the magnetic field at a small air gap. Therefore, a new 1D Halbach magnet array is proposed, in which the permanent magnet with a curved surface i...

Descripción completa

Detalles Bibliográficos
Autores principales: Liu, Guangdou, Hou, Shiqin, Xu, Xingping, Xiao, Wensheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038479/
https://www.ncbi.nlm.nih.gov/pubmed/33916562
http://dx.doi.org/10.3390/s21072522
_version_ 1783677384900214784
author Liu, Guangdou
Hou, Shiqin
Xu, Xingping
Xiao, Wensheng
author_facet Liu, Guangdou
Hou, Shiqin
Xu, Xingping
Xiao, Wensheng
author_sort Liu, Guangdou
collection PubMed
description In the linear and planar motors, the 1D Halbach magnet array is extensively used. The sinusoidal property of the magnetic field deteriorates by analyzing the magnetic field at a small air gap. Therefore, a new 1D Halbach magnet array is proposed, in which the permanent magnet with a curved surface is applied. Based on the superposition of principle and Fourier series, the magnetic flux density distribution is derived. The optimized curved surface is obtained and fitted by a polynomial. The sinusoidal magnetic field is verified by comparing it with the magnetic flux density of the finite element model. Through the analysis of different dimensions of the permanent magnet array, the optimization result has good applicability. The force ripple can be significantly reduced by the new magnet array. The effect on the mass and air gap is investigated compared with a conventional magnet array with rectangular permanent magnets. In conclusion, the new magnet array design has the scalability to be extended to various sizes of motor and is especially suitable for small air gap applications.
format Online
Article
Text
id pubmed-8038479
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80384792021-04-12 Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface Liu, Guangdou Hou, Shiqin Xu, Xingping Xiao, Wensheng Sensors (Basel) Article In the linear and planar motors, the 1D Halbach magnet array is extensively used. The sinusoidal property of the magnetic field deteriorates by analyzing the magnetic field at a small air gap. Therefore, a new 1D Halbach magnet array is proposed, in which the permanent magnet with a curved surface is applied. Based on the superposition of principle and Fourier series, the magnetic flux density distribution is derived. The optimized curved surface is obtained and fitted by a polynomial. The sinusoidal magnetic field is verified by comparing it with the magnetic flux density of the finite element model. Through the analysis of different dimensions of the permanent magnet array, the optimization result has good applicability. The force ripple can be significantly reduced by the new magnet array. The effect on the mass and air gap is investigated compared with a conventional magnet array with rectangular permanent magnets. In conclusion, the new magnet array design has the scalability to be extended to various sizes of motor and is especially suitable for small air gap applications. MDPI 2021-04-04 /pmc/articles/PMC8038479/ /pubmed/33916562 http://dx.doi.org/10.3390/s21072522 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Guangdou
Hou, Shiqin
Xu, Xingping
Xiao, Wensheng
Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface
title Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface
title_full Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface
title_fullStr Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface
title_full_unstemmed Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface
title_short Design of a New 1D Halbach Magnet Array with Good Sinusoidal Magnetic Field by Analyzing the Curved Surface
title_sort design of a new 1d halbach magnet array with good sinusoidal magnetic field by analyzing the curved surface
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038479/
https://www.ncbi.nlm.nih.gov/pubmed/33916562
http://dx.doi.org/10.3390/s21072522
work_keys_str_mv AT liuguangdou designofanew1dhalbachmagnetarraywithgoodsinusoidalmagneticfieldbyanalyzingthecurvedsurface
AT houshiqin designofanew1dhalbachmagnetarraywithgoodsinusoidalmagneticfieldbyanalyzingthecurvedsurface
AT xuxingping designofanew1dhalbachmagnetarraywithgoodsinusoidalmagneticfieldbyanalyzingthecurvedsurface
AT xiaowensheng designofanew1dhalbachmagnetarraywithgoodsinusoidalmagneticfieldbyanalyzingthecurvedsurface