Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines

There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density. This density is achieved through a high magne...

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Autores principales:	Iratxo Gómez, Gustavo García, Alex McCloskey, Gaizka Almandoz
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	FEM Fourier series Maxwell stress tensor noise and vibration permanent-magnet synchronous machine Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/ea3b42da23b942aca8053f3243c1a355
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spelling	oai:doaj.org-article:ea3b42da23b942aca8053f3243c1a3552021-11-25T16:39:31ZAnalytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines10.3390/app1122108652076-3417https://doaj.org/article/ea3b42da23b942aca8053f3243c1a3552021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10865https://doaj.org/toc/2076-3417There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density. This density is achieved through a high magnetic flux density in the air gap, which is achieved through hard magnets. Unfortunately, in these machines, electromagnetic forces have been identified as the main source of vibration and noise, and high magnetic flux densities make these vibrations and noises more significant. With the aim of better understanding the relationship between electromagnetic forces and design variables, this article, which is the continuation of previous work, firstly describes a study of the sources of magnetic forces in permanent-magnet synchronous machines. Subsequently, an analytical model for the computation of the radial forces originating from electromagnetic sources in permanent-magnet synchronous machines is stated. This model analyzes the forces on both the rotor surface and the base of the stator tooth. The analytical results were corroborated through simulations using the finite element method (FEM) and also by experimental tests performed over two prototypes. The results achieved by the analytical model show good agreement with both FEM results and experimental measurements.Iratxo GómezGustavo GarcíaAlex McCloskeyGaizka AlmandozMDPI AGarticleFEMFourier seriesMaxwell stress tensornoise and vibrationpermanent-magnet synchronous machineTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10865, p 10865 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	FEM Fourier series Maxwell stress tensor noise and vibration permanent-magnet synchronous machine Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	FEM Fourier series Maxwell stress tensor noise and vibration permanent-magnet synchronous machine Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Iratxo Gómez Gustavo García Alex McCloskey Gaizka Almandoz Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
description	There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density. This density is achieved through a high magnetic flux density in the air gap, which is achieved through hard magnets. Unfortunately, in these machines, electromagnetic forces have been identified as the main source of vibration and noise, and high magnetic flux densities make these vibrations and noises more significant. With the aim of better understanding the relationship between electromagnetic forces and design variables, this article, which is the continuation of previous work, firstly describes a study of the sources of magnetic forces in permanent-magnet synchronous machines. Subsequently, an analytical model for the computation of the radial forces originating from electromagnetic sources in permanent-magnet synchronous machines is stated. This model analyzes the forces on both the rotor surface and the base of the stator tooth. The analytical results were corroborated through simulations using the finite element method (FEM) and also by experimental tests performed over two prototypes. The results achieved by the analytical model show good agreement with both FEM results and experimental measurements.
format	article
author	Iratxo Gómez Gustavo García Alex McCloskey Gaizka Almandoz
author_facet	Iratxo Gómez Gustavo García Alex McCloskey Gaizka Almandoz
author_sort	Iratxo Gómez
title	Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
title_short	Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
title_full	Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
title_fullStr	Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
title_full_unstemmed	Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines
title_sort	analytical model to calculate radial forces in permanent-magnet synchronous machines
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ea3b42da23b942aca8053f3243c1a355
work_keys_str_mv	AT iratxogomez analyticalmodeltocalculateradialforcesinpermanentmagnetsynchronousmachines AT gustavogarcia analyticalmodeltocalculateradialforcesinpermanentmagnetsynchronousmachines AT alexmccloskey analyticalmodeltocalculateradialforcesinpermanentmagnetsynchronousmachines AT gaizkaalmandoz analyticalmodeltocalculateradialforcesinpermanentmagnetsynchronousmachines
_version_	1718413111535337472

Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines

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