Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation
Synchronous homopolar motors (SHMs) have been attracting the attention of researchers for many decades. Various mathematical models of SHM have been proposed to deal with its complicated magnetic circuit. Among them, there are time-consuming 3D finite element models (FEM), equivalent circuit models...
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doaj-a2b790f2169e43a4b477b349f8bcfc942021-03-30T04:47:39ZengIEEEIEEE Access2169-35362020-01-01818511218512010.1109/ACCESS.2020.30297409217436Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental ValidationVladimir Dmitrievskii0Vladimir Prakht1https://orcid.org/0000-0002-9218-0250Alecksey Anuchin2https://orcid.org/0000-0002-1019-756XVadim Kazakbaev3https://orcid.org/0000-0002-5395-8787Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg, RussiaDepartment of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg, RussiaDepartment of Electric Drives, Moscow Power Engineering Institute, Moscow, RussiaDepartment of Electrical Engineering and Electric Technology Systems, Ural Federal University, Yekaterinburg, RussiaSynchronous homopolar motors (SHMs) have been attracting the attention of researchers for many decades. Various mathematical models of SHM have been proposed to deal with its complicated magnetic circuit. Among them, there are time-consuming 3D finite element models (FEM), equivalent circuit models neglecting some significant features of the machine design, and 2D FEM models with virtual excitation winding distorting its magnetic field picture. This paper proposes a novel 2D FEM of SHM and shows that since there are no sources of excitation in the cross-sections of the rotor and stator stacks, no virtual elements are required. This model uses the general solution of the Gauss's law for magnetism containing excitation flux. The model is based on a set of magnetostatic boundary value problems for various rotor positions. The set of boundary problems is completed with the excitation equivalent circuit. The losses in the armature and field windings and the stator and rotor magnetic cores are computed in postprocessing. All these computations are carried out for a single combination of stator and rotor stack. A symmetrization algorithm is proposed to extend the obtained results to the whole SHM. A comparison of the theoretical and experimental data for a nine-phase three-section 320 kW SHM is carried out. These SHMs were used in a mining truck with a carrying capacity of 90 tons.https://ieeexplore.ieee.org/document/9217436/AC machinesautomotive applicationsbrushless motorselectric vehicleselectromagnetic modelingmining industry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vladimir Dmitrievskii Vladimir Prakht Alecksey Anuchin Vadim Kazakbaev |
spellingShingle |
Vladimir Dmitrievskii Vladimir Prakht Alecksey Anuchin Vadim Kazakbaev Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation IEEE Access AC machines automotive applications brushless motors electric vehicles electromagnetic modeling mining industry |
author_facet |
Vladimir Dmitrievskii Vladimir Prakht Alecksey Anuchin Vadim Kazakbaev |
author_sort |
Vladimir Dmitrievskii |
title |
Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation |
title_short |
Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation |
title_full |
Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation |
title_fullStr |
Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation |
title_full_unstemmed |
Traction Synchronous Homopolar Motor: Simplified Computation Technique and Experimental Validation |
title_sort |
traction synchronous homopolar motor: simplified computation technique and experimental validation |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
Synchronous homopolar motors (SHMs) have been attracting the attention of researchers for many decades. Various mathematical models of SHM have been proposed to deal with its complicated magnetic circuit. Among them, there are time-consuming 3D finite element models (FEM), equivalent circuit models neglecting some significant features of the machine design, and 2D FEM models with virtual excitation winding distorting its magnetic field picture. This paper proposes a novel 2D FEM of SHM and shows that since there are no sources of excitation in the cross-sections of the rotor and stator stacks, no virtual elements are required. This model uses the general solution of the Gauss's law for magnetism containing excitation flux. The model is based on a set of magnetostatic boundary value problems for various rotor positions. The set of boundary problems is completed with the excitation equivalent circuit. The losses in the armature and field windings and the stator and rotor magnetic cores are computed in postprocessing. All these computations are carried out for a single combination of stator and rotor stack. A symmetrization algorithm is proposed to extend the obtained results to the whole SHM. A comparison of the theoretical and experimental data for a nine-phase three-section 320 kW SHM is carried out. These SHMs were used in a mining truck with a carrying capacity of 90 tons. |
topic |
AC machines automotive applications brushless motors electric vehicles electromagnetic modeling mining industry |
url |
https://ieeexplore.ieee.org/document/9217436/ |
work_keys_str_mv |
AT vladimirdmitrievskii tractionsynchronoushomopolarmotorsimplifiedcomputationtechniqueandexperimentalvalidation AT vladimirprakht tractionsynchronoushomopolarmotorsimplifiedcomputationtechniqueandexperimentalvalidation AT aleckseyanuchin tractionsynchronoushomopolarmotorsimplifiedcomputationtechniqueandexperimentalvalidation AT vadimkazakbaev tractionsynchronoushomopolarmotorsimplifiedcomputationtechniqueandexperimentalvalidation |
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