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The analysis of bearing current using common mode equivalent circuit parameters by FEM

Authors
Jun, Ji hoonLee, Chul kyuKwon, Byung il
Issue Date
2005
Publisher
IEEE
Citation
ICEMS 2005: Proceedings of the Eighth International Conference on Electrical Machines and Systems, v.1, pp.49 - 51
Indexed
SCOPUS
Journal Title
ICEMS 2005: Proceedings of the Eighth International Conference on Electrical Machines and Systems
Volume
1
Start Page
49
End Page
51
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/46466
DOI
10.1109/ICEMS.2005.202481
ISSN
0000-0000
Abstract
An inverter driven induction motor has more superior dynamic characteristic than sine wave driven induction motor. But it has a problem with induced shaft voltage and high frequency bearing current that flows through the parasitic capacitances of motor as well as high dv/dt and high switching frequency. This paper deals with the analysis of bearing current in 7-level multilevel inverter fed 3 phase induction motor. In the previous researches, electromagnetic equations were ued to derive the parasitic capacitance or measured parameters are applied to equivalent circuit, but we used numerical method (FEM) to derive parasitic impedences in our strategy. So this paper pursues more exact circuit parameters and bearing current analysis result. Then we compared the proposed method with conventional method in 60[Hz] no load condition. From the comparision of simulation and experiment results, we know that the proposed method is valid.
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COLLEGE OF ENGINEERING SCIENCES > SCHOOL OF ELECTRICAL ENGINEERING > 1. Journal Articles

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