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Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature / Nurul Azim Bhuiyan; Alasdair McDonald

IEEE Transactions on Energy Conversion, Pages: 1 - 1

Swansea University Author: Bhuiyan, Nurul Azim

Abstract

In this paper, the main objective is to optimize permanent magnet synchronous generators for offshore direct drive wind turbine, examining the best choice of magnet grades, BHmax and working temperature. A surface-mounted Nd-Fe-B generator is designed electromagnetically and structurally and optimiz...

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Published in: IEEE Transactions on Energy Conversion
ISSN: 0885-8969 1558-0059
Published: IEEE Power & Energy Society 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa45487
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spelling 2019-01-08T14:35:15Z v2 45487 2018-11-07 Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature Nurul Azim Bhuiyan Nurul Azim Bhuiyan true 0000-0002-1646-2096 false 36b3a440ac5e333da9442e2820d11c63 5469b80b52d9b91cef08cee0ae7f3d4f R0mEDq1FEIYPSoiamLB4/BXCE6Z9OGBXOD9D5JU4+T4= 2018-11-07 EEN In this paper, the main objective is to optimize permanent magnet synchronous generators for offshore direct drive wind turbine, examining the best choice of magnet grades, BHmax and working temperature. A surface-mounted Nd-Fe-B generator is designed electromagnetically and structurally and optimized for different rated powers of 6, 8 and 10 MW. The results show that the cost of energy decreases as the wind turbine’s rated power increases. Further optimizations were carried out using different neodymium magnet grades and it was found that the higher magnet grades produce a lower cost of energy. In addition, steps were taken to estimate the effect of magnet temperature. A detailed thermal model is used to calculate the cooling airflow requirements to bring the magnet operating temperature from 120°C to 80°C. Allowing the use of cheaper temperature grades of magnets, the additional cooling reduces winding losses and improves the effective BHmax of the magnets. Journal article IEEE Transactions on Energy Conversion 1 1 IEEE Power & Energy Society 0885-8969 1558-0059 Cooling system, cost of energy, magnet grade, optimization, permanent magnet generator, thermal model, wind turbine. 0 0 2018 2018-01-01 10.1109/TEC.2018.2879442 https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=60 College of Engineering Engineering CENG EEN None None 2019-01-08T14:35:15Z 2018-11-07T12:14:48Z College of Engineering Engineering Nurul Azim Bhuiyan 1 Alasdair McDonald 2 0045487-07112018121536.pdf FINALVERSION.pdf 2018-11-07T12:15:36Z Output 494580 application/pdf AM true Updated Copyright 08/01/2019 2018-11-07T00:00:00 true eng
title Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
spellingShingle Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
Bhuiyan, Nurul Azim
title_short Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
title_full Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
title_fullStr Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
title_full_unstemmed Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
title_sort Optimization of offshore direct drive wind turbine generators with consideration of permanent magnet grade and temperature
author_id_str_mv 36b3a440ac5e333da9442e2820d11c63
author_id_fullname_str_mv 36b3a440ac5e333da9442e2820d11c63_***_Bhuiyan, Nurul Azim
author Bhuiyan, Nurul Azim
author2 Nurul Azim Bhuiyan
Alasdair McDonald
format Journal article
container_title IEEE Transactions on Energy Conversion
container_start_page 1
publishDate 2018
institution Swansea University
issn 0885-8969
1558-0059
doi_str_mv 10.1109/TEC.2018.2879442
publisher IEEE Power & Energy Society
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
url https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=60
document_store_str 1
active_str 1
description In this paper, the main objective is to optimize permanent magnet synchronous generators for offshore direct drive wind turbine, examining the best choice of magnet grades, BHmax and working temperature. A surface-mounted Nd-Fe-B generator is designed electromagnetically and structurally and optimized for different rated powers of 6, 8 and 10 MW. The results show that the cost of energy decreases as the wind turbine’s rated power increases. Further optimizations were carried out using different neodymium magnet grades and it was found that the higher magnet grades produce a lower cost of energy. In addition, steps were taken to estimate the effect of magnet temperature. A detailed thermal model is used to calculate the cooling airflow requirements to bring the magnet operating temperature from 120°C to 80°C. Allowing the use of cheaper temperature grades of magnets, the additional cooling reduces winding losses and improves the effective BHmax of the magnets.
published_date 2018-01-01T12:17:24Z
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score 11.318357