Study on vibration caused by electromagnetic force in the end portion of large-capacity cylindrical synchronous machines: Improvement of electromagnetic force estimation and verification of degradation on winding insulation

Autor:	Masayuki Ichimonji, Hitoshi Katayama, Susumu Nagano, Yoshiyuki Inoue, Daisuke Hiramatsu, Tanzo Nitta, Tadashi Tokumasu, Masafumi Fujita
Rok vydání:	2008
Předmět:	Vibration Engineering business.industry Evaluation methods Electrical engineering Large capacity Energy Engineering and Power Technology Mechanical engineering Electrical and Electronic Engineering business Synchronous motor Finite element method Degradation (telecommunications)
Zdroj:	Electrical Engineering in Japan. 163:78-89
ISSN:	1520-6416 0424-7760
Popis:	A new method for analyzing electromagnetic force in the end-winding portion of large-capacity synchronous generators is provided and evaluated in comparison with 3D FEM electromagnetic analysis. In addition, a method for estimating end-winding vibration during on-load operation is suggested by measured data at factory testing. Moreover, an evaluation method for insulation degradation after operation is proposed for large-capacity cylindrical synchronous machines, where the end-winding portion is the longest and electromagnetic forces on it are the greatest of all rotating machinery. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 163(4): 78–89, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20666
Databáze:	OpenAIRE
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