A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Torben Fricke
  • Babette Schwarz
  • Bernd Ponick

External Research Organisations

  • Voith GmbH & Co. KGaA
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Details

Original languageEnglish
Title of host publication2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019
Subtitle of host publicationProceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages93-99
Number of pages7
ISBN (electronic)978-1-5386-7687-5
ISBN (print)978-1-5386-7688-2
Publication statusPublished - Aug 2019
Event2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019 - Istanbul, Turkey
Duration: 27 Aug 201929 Aug 2019

Abstract

This paper presents a clamping plate loss model based on surface impedance boundary conditions. The clamping plate surface is discretized using a single loop of nodes. By making a clever choice of boundary conditions instead of modeling an entire pole pitch and only considering the fundamental temporal and spacial harmonic of the field normal to the clamping plate surface, the number of nodes (and elements) required is reduced to around 100, making the proposed method computationally inexpensive. However, the presented loss model requires the knowledge of the flux density normal to the clamping plate, making it only useful in situations where a fast method of obtaining the normal flux density distribution is available. In this paper, three-dimensional time step FEA is used to both validate the proposed loss model and assess the impact of assumptions made in its derivation. For the geometry investigated in this paper, only 61 nodes were required leading to a computing time of 20 ms with an error of 3 % when compared to time step 3D FEA.

Keywords

    Clamping System, End Region Losses, Hydroelectric Power Generation, Surface Impedance Boundary Conditions, Synchronous Generator

ASJC Scopus subject areas

Cite this

A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators. / Fricke, Torben; Schwarz, Babette; Ponick, Bernd.
2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. p. 93-99 9007128.

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Fricke, T, Schwarz, B & Ponick, B 2019, A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators. in 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings., 9007128, Institute of Electrical and Electronics Engineers Inc., pp. 93-99, 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019, Istanbul, Turkey, 27 Aug 2019. https://doi.org/10.1109/acemp-optim44294.2019.9007128
Fricke, T., Schwarz, B., & Ponick, B. (2019). A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators. In 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings (pp. 93-99). Article 9007128 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/acemp-optim44294.2019.9007128
Fricke T, Schwarz B, Ponick B. A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators. In 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. p. 93-99. 9007128 doi: 10.1109/acemp-optim44294.2019.9007128
Fricke, Torben ; Schwarz, Babette ; Ponick, Bernd. / A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators. 2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019: Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 93-99
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title = "A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators",
abstract = "This paper presents a clamping plate loss model based on surface impedance boundary conditions. The clamping plate surface is discretized using a single loop of nodes. By making a clever choice of boundary conditions instead of modeling an entire pole pitch and only considering the fundamental temporal and spacial harmonic of the field normal to the clamping plate surface, the number of nodes (and elements) required is reduced to around 100, making the proposed method computationally inexpensive. However, the presented loss model requires the knowledge of the flux density normal to the clamping plate, making it only useful in situations where a fast method of obtaining the normal flux density distribution is available. In this paper, three-dimensional time step FEA is used to both validate the proposed loss model and assess the impact of assumptions made in its derivation. For the geometry investigated in this paper, only 61 nodes were required leading to a computing time of 20 ms with an error of 3 % when compared to time step 3D FEA.",
keywords = "Clamping System, End Region Losses, Hydroelectric Power Generation, Surface Impedance Boundary Conditions, Synchronous Generator",
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note = "2019 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2019 and 2019 International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2019 ; Conference date: 27-08-2019 Through 29-08-2019",

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Download

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T1 - A Novel Surface Impedance Based Clamping Plate Loss Model for Large Synchronous Generators

AU - Fricke, Torben

AU - Schwarz, Babette

AU - Ponick, Bernd

PY - 2019/8

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N2 - This paper presents a clamping plate loss model based on surface impedance boundary conditions. The clamping plate surface is discretized using a single loop of nodes. By making a clever choice of boundary conditions instead of modeling an entire pole pitch and only considering the fundamental temporal and spacial harmonic of the field normal to the clamping plate surface, the number of nodes (and elements) required is reduced to around 100, making the proposed method computationally inexpensive. However, the presented loss model requires the knowledge of the flux density normal to the clamping plate, making it only useful in situations where a fast method of obtaining the normal flux density distribution is available. In this paper, three-dimensional time step FEA is used to both validate the proposed loss model and assess the impact of assumptions made in its derivation. For the geometry investigated in this paper, only 61 nodes were required leading to a computing time of 20 ms with an error of 3 % when compared to time step 3D FEA.

AB - This paper presents a clamping plate loss model based on surface impedance boundary conditions. The clamping plate surface is discretized using a single loop of nodes. By making a clever choice of boundary conditions instead of modeling an entire pole pitch and only considering the fundamental temporal and spacial harmonic of the field normal to the clamping plate surface, the number of nodes (and elements) required is reduced to around 100, making the proposed method computationally inexpensive. However, the presented loss model requires the knowledge of the flux density normal to the clamping plate, making it only useful in situations where a fast method of obtaining the normal flux density distribution is available. In this paper, three-dimensional time step FEA is used to both validate the proposed loss model and assess the impact of assumptions made in its derivation. For the geometry investigated in this paper, only 61 nodes were required leading to a computing time of 20 ms with an error of 3 % when compared to time step 3D FEA.

KW - Clamping System

KW - End Region Losses

KW - Hydroelectric Power Generation

KW - Surface Impedance Boundary Conditions

KW - Synchronous Generator

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