FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole

The authors present in this paper the analysis with Finite Element Method (FEM) of the magnetic circuit for a Brushless DC servomotor with fractional number of slots/pole (9 slots and 10 poles). For this purpose, FEMM 4.2 software package was used for the analysis. To obtain the waveforms of Back-...

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Main Authors: BALUTA, G., GRAUR, A., PENTIUC, R., DIACONESCU, C., POPA, C.
Format: Article
Language:English
Published: Stefan cel Mare University of Suceava 2014-02-01
Series:Advances in Electrical and Computer Engineering
Subjects:
Online Access:http://dx.doi.org/10.4316/AECE.2014.01016
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author BALUTA, G.
GRAUR, A.
PENTIUC, R.
DIACONESCU, C.
POPA, C.
author_facet BALUTA, G.
GRAUR, A.
PENTIUC, R.
DIACONESCU, C.
POPA, C.
author_sort BALUTA, G.
collection DOAJ
description The authors present in this paper the analysis with Finite Element Method (FEM) of the magnetic circuit for a Brushless DC servomotor with fractional number of slots/pole (9 slots and 10 poles). For this purpose, FEMM 4.2 software package was used for the analysis. To obtain the waveforms of Back-ElectroMotive Forces (BEMFs), electromagnetic and cogging torque for servomotor a program in LUA scripting language (integrated into interactive shell of FEMM4.2) has been created. A comparation with a structure with integer number of slots/pole (18 slots and 6 poles) was also realized. The analysis results prove that the structure chosen is an optimal solution: sinusoidal waveforms of BEMFs, improved electromagnetic torque and reduced cogging torque. Therefore, the operating characteristics of the servomotor with 9/10 slots/poles manufactured by Sistem Euroteh Company and included in an integrated electrical drives system are presented in this paper.
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spelling doaj.art-7c617d63db004c088e9a66b0d24f428f2022-12-22T02:58:24ZengStefan cel Mare University of SuceavaAdvances in Electrical and Computer Engineering1582-74451844-76002014-02-0114110310810.4316/AECE.2014.01016FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per PoleBALUTA, G.GRAUR, A.PENTIUC, R.DIACONESCU, C.POPA, C.The authors present in this paper the analysis with Finite Element Method (FEM) of the magnetic circuit for a Brushless DC servomotor with fractional number of slots/pole (9 slots and 10 poles). For this purpose, FEMM 4.2 software package was used for the analysis. To obtain the waveforms of Back-ElectroMotive Forces (BEMFs), electromagnetic and cogging torque for servomotor a program in LUA scripting language (integrated into interactive shell of FEMM4.2) has been created. A comparation with a structure with integer number of slots/pole (18 slots and 6 poles) was also realized. The analysis results prove that the structure chosen is an optimal solution: sinusoidal waveforms of BEMFs, improved electromagnetic torque and reduced cogging torque. Therefore, the operating characteristics of the servomotor with 9/10 slots/poles manufactured by Sistem Euroteh Company and included in an integrated electrical drives system are presented in this paper.http://dx.doi.org/10.4316/AECE.2014.01016permanent magnet motorsbrushless motorsfinite element methods
spellingShingle BALUTA, G.
GRAUR, A.
PENTIUC, R.
DIACONESCU, C.
POPA, C.
FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole
Advances in Electrical and Computer Engineering
permanent magnet motors
brushless motors
finite element methods
title FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole
title_full FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole
title_fullStr FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole
title_full_unstemmed FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole
title_short FEM Analysis of Brushless DC Servomotor with Fractional Number of Slots per Pole
title_sort fem analysis of brushless dc servomotor with fractional number of slots per pole
topic permanent magnet motors
brushless motors
finite element methods
url http://dx.doi.org/10.4316/AECE.2014.01016
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AT graura femanalysisofbrushlessdcservomotorwithfractionalnumberofslotsperpole
AT pentiucr femanalysisofbrushlessdcservomotorwithfractionalnumberofslotsperpole
AT diaconescuc femanalysisofbrushlessdcservomotorwithfractionalnumberofslotsperpole
AT popac femanalysisofbrushlessdcservomotorwithfractionalnumberofslotsperpole