Comparing different materials for rotor-can in flooded generators

Faisal Wani; Jianning Dong; Avinash Yadav; Henk Polinder

doi:10.1109/ICELMACH.2018.8506730

Comparing different materials for rotor-can in flooded generators

Faisal Wani, Jianning Dong, Avinash Yadav, Henk Polinder

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

78 Downloads (Pure)

Abstract

Flooded Generators have been proposed as a possible solution to eliminate the risks due to the seal failure, and improve cooling in tidal stream turbine generators. In a flooded generator, the stator-rotor gap is filled with the seawater; this poses a serious corrosion risk to the material inside the generator. For this reason, a can or a protective shield is used on the stator and the rotor surfaces in the watergap. This paper compares different rotor-can materials based on the eddy current losses in the rotor-can, and its impact on the temperature inside the generator. Due to the flooded gap, the temperature rise in magnets, because of rotor-can eddy current losses is much lower than in a corresponding airgap machine. Thus from the thermal point of view, the choice of the rotor-can material is less critical in a flooded generator than in an airgap generator.

Original language	English
Title of host publication	Proceedings 2018 XIII International Conference on Electrical Machines (ICEM)
Place of Publication	Piscataway, NJ, USA
Publisher	IEEE
Pages	2572-2578
ISBN (Electronic)	978-1-5386-2477-7
ISBN (Print)	978-1-5386-2478-4
DOIs	https://doi.org/10.1109/ICELMACH.2018.8506730
Publication status	Published - 2018
Event	ICEM 2018: 13th International Conference on Electrical Machines - Alexandroupoli, Greece Duration: 3 Sept 2018 → 6 Sept 2018

Conference

Conference	ICEM 2018: 13th International Conference on Electrical Machines
Abbreviated title	ICEM
Country/Territory	Greece
City	Alexandroupoli
Period	3/09/18 → 6/09/18

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Tidal stream turbines
Flooded Generators
Permanent Magnets
Rotor-can
eddy current losses

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ICELMACH.2018.8506730

Comparing_Different_Materials_for_Rotor-Can_in_Flooded_GeneratorsFinal published version, 679 KB

1 Citations
1 Dissertation (TU Delft)

Improving the Reliability of Tidal Turbine Generator Systems
Wani, F. M., 2021, 181 p.
Research output: Thesis › Dissertation (TU Delft)

Open Access
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497 Downloads (Pure)

Cite this

@inproceedings{04cffdc499da445ea9375ccb0c9e9d8a,

title = "Comparing different materials for rotor-can in flooded generators",

abstract = "Flooded Generators have been proposed as a possible solution to eliminate the risks due to the seal failure, and improve cooling in tidal stream turbine generators. In a flooded generator, the stator-rotor gap is filled with the seawater; this poses a serious corrosion risk to the material inside the generator. For this reason, a can or a protective shield is used on the stator and the rotor surfaces in the watergap. This paper compares different rotor-can materials based on the eddy current losses in the rotor-can, and its impact on the temperature inside the generator. Due to the flooded gap, the temperature rise in magnets, because of rotor-can eddy current losses is much lower than in a corresponding airgap machine. Thus from the thermal point of view, the choice of the rotor-can material is less critical in a flooded generator than in an airgap generator.",

keywords = "Tidal stream turbines, Flooded Generators, Permanent Magnets, Rotor-can, eddy current losses",

author = "Faisal Wani and Jianning Dong and Avinash Yadav and Henk Polinder",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; ICEM 2018: 13th International Conference on Electrical Machines, ICEM ; Conference date: 03-09-2018 Through 06-09-2018",

year = "2018",

doi = "10.1109/ICELMACH.2018.8506730",

language = "English",

isbn = "978-1-5386-2478-4",

pages = "2572--2578",

booktitle = "Proceedings 2018 XIII International Conference on Electrical Machines (ICEM)",

publisher = "IEEE",

address = "United States",

}

Wani, F, Dong, J, Yadav, A & Polinder, H 2018, Comparing different materials for rotor-can in flooded generators. in Proceedings 2018 XIII International Conference on Electrical Machines (ICEM)., 8506730, IEEE, Piscataway, NJ, USA, pp. 2572-2578, ICEM 2018: 13th International Conference on Electrical Machines, Alexandroupoli, Greece, 3/09/18. https://doi.org/10.1109/ICELMACH.2018.8506730

Comparing different materials for rotor-can in flooded generators. / Wani, Faisal; Dong, Jianning; Yadav, Avinash et al.
Proceedings 2018 XIII International Conference on Electrical Machines (ICEM). Piscataway, NJ, USA: IEEE, 2018. p. 2572-2578 8506730.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Comparing different materials for rotor-can in flooded generators

AU - Wani, Faisal

AU - Dong, Jianning

AU - Yadav, Avinash

AU - Polinder, Henk

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2018

Y1 - 2018

N2 - Flooded Generators have been proposed as a possible solution to eliminate the risks due to the seal failure, and improve cooling in tidal stream turbine generators. In a flooded generator, the stator-rotor gap is filled with the seawater; this poses a serious corrosion risk to the material inside the generator. For this reason, a can or a protective shield is used on the stator and the rotor surfaces in the watergap. This paper compares different rotor-can materials based on the eddy current losses in the rotor-can, and its impact on the temperature inside the generator. Due to the flooded gap, the temperature rise in magnets, because of rotor-can eddy current losses is much lower than in a corresponding airgap machine. Thus from the thermal point of view, the choice of the rotor-can material is less critical in a flooded generator than in an airgap generator.

AB - Flooded Generators have been proposed as a possible solution to eliminate the risks due to the seal failure, and improve cooling in tidal stream turbine generators. In a flooded generator, the stator-rotor gap is filled with the seawater; this poses a serious corrosion risk to the material inside the generator. For this reason, a can or a protective shield is used on the stator and the rotor surfaces in the watergap. This paper compares different rotor-can materials based on the eddy current losses in the rotor-can, and its impact on the temperature inside the generator. Due to the flooded gap, the temperature rise in magnets, because of rotor-can eddy current losses is much lower than in a corresponding airgap machine. Thus from the thermal point of view, the choice of the rotor-can material is less critical in a flooded generator than in an airgap generator.

KW - Tidal stream turbines

KW - Flooded Generators

KW - Permanent Magnets

KW - Rotor-can

KW - eddy current losses

U2 - 10.1109/ICELMACH.2018.8506730

DO - 10.1109/ICELMACH.2018.8506730

M3 - Conference contribution

SN - 978-1-5386-2478-4

SP - 2572

EP - 2578

BT - Proceedings 2018 XIII International Conference on Electrical Machines (ICEM)

PB - IEEE

CY - Piscataway, NJ, USA

T2 - ICEM 2018: 13th International Conference on Electrical Machines

Y2 - 3 September 2018 through 6 September 2018

ER -

Comparing different materials for rotor-can in flooded generators

Abstract

Conference

Bibliographical note

Keywords

UN SDGs

Access to Document

Fingerprint

Research output

Improving the Reliability of Tidal Turbine Generator Systems

Cite this