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Kühlung von luftgekühlten Wasserkraftgeneratoren bei verschiedenen Betriebszuständen

Cooling of air-cooled hydro-generators at different operation conditions

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Summary

In rotating electrical machines power losses cause heating of machine parts. Therefore a forced cooling airflow evacuates these losses. This work presents an advanced heating computation method based on an iterative coupling of power loss, cooling airflow and temperature calculations. Special attention is paid on temperatures at different operation conditions, like under-excited operation.

Zusammenfassung

In rotierenden elektrischen Maschinen werden die verschiedenen Aktivelemente der Maschine durch Verluste erwärmt. Aus diesem Grund werden luftgekühlte Großgeneratoren mit Hilfe eines vorgegebenen Kühlluftstroms gekühlt. In dieser Arbeit wird ein gekoppeltes Berechnungsverfahren zur Vorausberechnung der Verluste, des Luftstroms und der Erwärmungen bei verschiedenen Betriebszuständen (z. B. untererregter Betrieb) vorgestellt.

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Authors and Affiliations

  1. ALSTOM (Schweiz) AG, Zweigniederlassung Birr, Birr, Switzerland

    G. Traxler-Samek, B. Jordan & A. Schwery

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  1. G. Traxler-Samek
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  2. B. Jordan
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  3. A. Schwery
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Traxler-Samek, G., Jordan, B. & Schwery, A. Kühlung von luftgekühlten Wasserkraftgeneratoren bei verschiedenen Betriebszuständen. Elektrotech. Inftech. 128, 181–187 (2011). https://doi.org/10.1007/s00502-011-0829-3

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  • DOI: https://doi.org/10.1007/s00502-011-0829-3

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