Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications
Because of their high power density and compact size, permanent-magnet (PM) motors have been commonly used to drive rotary blood pumps (RBPs), which are focused on the treatment of end-stage heart failure or as the bridge to a heart transplant. In this paper, a bearingless PM motor has been proposed...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8932486/ |
| _version_ | 1819170989184909312 |
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| author | Fangqun Wang Yingfei Zhu Hao Wang Dong Zhao |
| author_facet | Fangqun Wang Yingfei Zhu Hao Wang Dong Zhao |
| author_sort | Fangqun Wang |
| collection | DOAJ |
| description | Because of their high power density and compact size, permanent-magnet (PM) motors have been commonly used to drive rotary blood pumps (RBPs), which are focused on the treatment of end-stage heart failure or as the bridge to a heart transplant. In this paper, a bearingless PM motor has been proposed for axial blood pump applications. The finite-element method (FEM) is used to predict the electromagnetic characteristics of the designed motor with improved performance. Two topologies are investigated, namely the integral-slot and distributed-windings method and the fractional-slot and double-layer concentrated windings method. Both motors are analyzed and optimized. FEM reveals that, compared with the integral-slot motor, the fractional-slot motor offers significantly enhanced performance, including reduced cogging torque, improved back electromotive force (back EMF), and decreased magnetic flux leakage. Finally, hydraulic experiments have been conducted in a mock-circulation loop to validate the feasibility of the designed motor for an axial blood pump. The results show that the fractional-slot bearingless PM motor can drive the RBP to produce physiological blood flow with reasonable efficiency. |
| first_indexed | 2024-12-22T19:44:09Z |
| format | Article |
| id | doaj.art-a5ebd92a3739493189f778719d12ba18 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T19:44:09Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-a5ebd92a3739493189f778719d12ba182022-12-21T18:14:43ZengIEEEIEEE Access2169-35362020-01-0187622762710.1109/ACCESS.2019.29596338932486Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump ApplicationsFangqun Wang0https://orcid.org/0000-0002-0792-6581Yingfei Zhu1https://orcid.org/0000-0001-6061-9049Hao Wang2https://orcid.org/0000-0002-3037-7488Dong Zhao3https://orcid.org/0000-0001-9279-5397Department of Biomedical Engineering, School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, ChinaDepartment of Biomedical Engineering, School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, ChinaDepartment of Biomedical Engineering, School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, ChinaDepartment of Biomedical Engineering, School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, ChinaBecause of their high power density and compact size, permanent-magnet (PM) motors have been commonly used to drive rotary blood pumps (RBPs), which are focused on the treatment of end-stage heart failure or as the bridge to a heart transplant. In this paper, a bearingless PM motor has been proposed for axial blood pump applications. The finite-element method (FEM) is used to predict the electromagnetic characteristics of the designed motor with improved performance. Two topologies are investigated, namely the integral-slot and distributed-windings method and the fractional-slot and double-layer concentrated windings method. Both motors are analyzed and optimized. FEM reveals that, compared with the integral-slot motor, the fractional-slot motor offers significantly enhanced performance, including reduced cogging torque, improved back electromotive force (back EMF), and decreased magnetic flux leakage. Finally, hydraulic experiments have been conducted in a mock-circulation loop to validate the feasibility of the designed motor for an axial blood pump. The results show that the fractional-slot bearingless PM motor can drive the RBP to produce physiological blood flow with reasonable efficiency.https://ieeexplore.ieee.org/document/8932486/Blood pumpcogging torquefinite-element analysisfractional slotpermanent magnet motors |
| spellingShingle | Fangqun Wang Yingfei Zhu Hao Wang Dong Zhao Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications IEEE Access Blood pump cogging torque finite-element analysis fractional slot permanent magnet motors |
| title | Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications |
| title_full | Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications |
| title_fullStr | Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications |
| title_full_unstemmed | Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications |
| title_short | Design and Analysis of a Bearingless Permanent-Magnet Motor for Axial Blood Pump Applications |
| title_sort | design and analysis of a bearingless permanent magnet motor for axial blood pump applications |
| topic | Blood pump cogging torque finite-element analysis fractional slot permanent magnet motors |
| url | https://ieeexplore.ieee.org/document/8932486/ |
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