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논문 기본 정보

자료유형
학술저널
저자정보
Wesley Doorsamy (University of the Witwatersrand) Willem A. Cronje (University of the Witwatersrand)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.14 No.5
발행연도
2014.9
수록면
859 - 865 (7page)

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초록· 키워드

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This study presents an electromagnetic model for predicting shaft voltages in a 2-pole field-excited synchronous generator. After the first observations on shaft voltages were made more than a century ago, extensive work has been conducted on eliminating, mitigating, and integrating the aforementioned phenomena. Given that emphasis has been placed on modeling shaft- and bearing-induced voltages in AC motors driven by variable frequency drives, similar efforts toward a model that is dedicated to generators are insubstantial. This work endeavors to improve current physical interpretation and prediction methods for shaft-induced voltages in generators through semi-analytical derivation. Aside from the experimental validation of the model, investigations regarding the behavior of shaft voltages under varying machine complexities and operating conditions clarify previous uncertainties regarding these phenomena. The performance of the numerical method is also assessed for application in eccentricity fault diagnosis.

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Abstract
I. INTRODUCTION
II. BACKGROUND
III. CONSTRUCTION OF A SHAFT VOLTAGE MODEL
IV. TESTING AND APPLICATION
V. RECOMMENDATIONS
VI. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2015-500-002566558