A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps
High temperature superconductivity is emerging as a solution for lightweight, cost-effective and high-power wind generators. Current injection and maintainment/sustainment in the field winding are obtained by metal current leads which, due to persistent heat conduction and joule loss, are responsibl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/15/5392 |
| _version_ | 1797414115159834624 |
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| author | Giacomo Russo Antonio Morandi |
| author_facet | Giacomo Russo Antonio Morandi |
| author_sort | Giacomo Russo |
| collection | DOAJ |
| description | High temperature superconductivity is emerging as a solution for lightweight, cost-effective and high-power wind generators. Current injection and maintainment/sustainment in the field winding are obtained by metal current leads which, due to persistent heat conduction and joule loss, are responsible for a large part of the total cryogenic heat load. Slip rings, which further reduce the overall performance and reliability of the system, are also required. In this paper we assess the viability of the HTS dynamo and the rectifier flux pumps for energizing the field coils of the EcoSwing 3.6 MW HTS wind generator. Both a “warm” solution, with the rectifier at room temperature, and a “cold” solution, in which the latter is integrated into the cryostat, are investigated with regard to the rectifier flux pump. A comparison with the actual, state-of-the-art, system of the EcoSwing machine is carried out in terms of the total required cooling power and the ability to charge the HTS field winding up to the rated current. It is found that the dynamo flux pump, beside avoiding the need of slip rings, allows the reduction in the required cooling by about 74% with respect to the conventional current-leads-based solution. |
| first_indexed | 2024-03-09T05:28:27Z |
| format | Article |
| id | doaj.art-8b20e6fb0d344070824374c4dfe1688c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T05:28:27Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-8b20e6fb0d344070824374c4dfe1688c2023-12-03T12:34:47ZengMDPI AGEnergies1996-10732022-07-011515539210.3390/en15155392A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux PumpsGiacomo Russo0Antonio Morandi1Department of Electrical, Electronic and Information Engineering, University of Bologna, 40135 Bologna, ItalyDepartment of Electrical, Electronic and Information Engineering, University of Bologna, 40135 Bologna, ItalyHigh temperature superconductivity is emerging as a solution for lightweight, cost-effective and high-power wind generators. Current injection and maintainment/sustainment in the field winding are obtained by metal current leads which, due to persistent heat conduction and joule loss, are responsible for a large part of the total cryogenic heat load. Slip rings, which further reduce the overall performance and reliability of the system, are also required. In this paper we assess the viability of the HTS dynamo and the rectifier flux pumps for energizing the field coils of the EcoSwing 3.6 MW HTS wind generator. Both a “warm” solution, with the rectifier at room temperature, and a “cold” solution, in which the latter is integrated into the cryostat, are investigated with regard to the rectifier flux pump. A comparison with the actual, state-of-the-art, system of the EcoSwing machine is carried out in terms of the total required cooling power and the ability to charge the HTS field winding up to the rated current. It is found that the dynamo flux pump, beside avoiding the need of slip rings, allows the reduction in the required cooling by about 74% with respect to the conventional current-leads-based solution.https://www.mdpi.com/1996-1073/15/15/5392HTS wind generatorsflux pumpHTS dynamopower supply for HTS magnets |
| spellingShingle | Giacomo Russo Antonio Morandi A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps Energies HTS wind generators flux pump HTS dynamo power supply for HTS magnets |
| title | A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps |
| title_full | A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps |
| title_fullStr | A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps |
| title_full_unstemmed | A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps |
| title_short | A Numerical Study on the Energization of the Field Coils of a Full-Size Wind Turbine with Different Types of Flux Pumps |
| title_sort | numerical study on the energization of the field coils of a full size wind turbine with different types of flux pumps |
| topic | HTS wind generators flux pump HTS dynamo power supply for HTS magnets |
| url | https://www.mdpi.com/1996-1073/15/15/5392 |
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