A Magnetic Equivalent Circuit to Account for Gaps Between Clamping Plate Segments in Large Synchronous Machines

Research output: Chapter in book/report/conference proceedingConference contributionResearch

Authors

  • Torben Fricke
  • Babette Schwarz
  • Bernd Ponick

External Research Organisations

  • Voith Hydro Holding GmbH & Co KG
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Details

Original languageEnglish
Title of host publication2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM)
PublisherIEEE Industrial Electronics Society
Pages19-25
Number of pages7
Volume1
ISBN (electronic)9781728199450
ISBN (print)978-1-7281-9946-7
Publication statusPublished - 2020
Event24th International Conference o Electrical Machines 2020 (ICEM) - Gothenburg
Duration: 23 Aug 202026 Aug 2020

Publication series

Name Proceedings (International Conference on Electrical Machines)
ISSN (Print)2381-4802

Abstract

End region effects in large synchronous machines are often investigated using 3DFEA, which is computationally expensive. This paper proposes the use of a simple magnetic equivalent circuit to model the impact of gaps between clamping plate segments and clamping plate eddy currents on the tangential clamping plate flux distribution. The tangential clamping plate flux distribution in turn can be used in a more comprehensive clamping plate loss calculation approach. Therefore, the methods presented in this paper should not be seen as a stand-alone methodology but rather as one building block in a more comprehensive calculation approach. Comparisons to 3D FEA and measurements on a 1, 5 MVA test generator demonstrate the ability of the presented approach to capture the underlying flux transport mechanisms. The methodology is also used to predict the impact of the number of clamping plate segments and the gap width between those segments on clamping plate losses.

Keywords

    Clamping System, End Region Losses, Hydroelectric Power Generation, Magnetic Equivalent Circuit, Synchronous Generator

ASJC Scopus subject areas

Cite this

A Magnetic Equivalent Circuit to Account for Gaps Between Clamping Plate Segments in Large Synchronous Machines. / Fricke, Torben; Schwarz, Babette; Ponick, Bernd.
2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM). Vol. 1 IEEE Industrial Electronics Society, 2020. p. 19-25 9270921 ( Proceedings (International Conference on Electrical Machines)).

Research output: Chapter in book/report/conference proceedingConference contributionResearch

Fricke, T, Schwarz, B & Ponick, B 2020, A Magnetic Equivalent Circuit to Account for Gaps Between Clamping Plate Segments in Large Synchronous Machines. in 2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM). vol. 1, 9270921, Proceedings (International Conference on Electrical Machines), IEEE Industrial Electronics Society, pp. 19-25, 24th International Conference o Electrical Machines 2020 (ICEM), 23 Aug 2020. https://doi.org/10.1109/ICEM49940.2020.9270921
Fricke, T., Schwarz, B., & Ponick, B. (2020). A Magnetic Equivalent Circuit to Account for Gaps Between Clamping Plate Segments in Large Synchronous Machines. In 2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM) (Vol. 1, pp. 19-25). Article 9270921 ( Proceedings (International Conference on Electrical Machines)). IEEE Industrial Electronics Society. https://doi.org/10.1109/ICEM49940.2020.9270921
Fricke T, Schwarz B, Ponick B. A Magnetic Equivalent Circuit to Account for Gaps Between Clamping Plate Segments in Large Synchronous Machines. In 2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM). Vol. 1. IEEE Industrial Electronics Society. 2020. p. 19-25. 9270921. ( Proceedings (International Conference on Electrical Machines)). doi: 10.1109/ICEM49940.2020.9270921
Fricke, Torben ; Schwarz, Babette ; Ponick, Bernd. / A Magnetic Equivalent Circuit to Account for Gaps Between Clamping Plate Segments in Large Synchronous Machines. 2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM). Vol. 1 IEEE Industrial Electronics Society, 2020. pp. 19-25 ( Proceedings (International Conference on Electrical Machines)).
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