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Circumferential Flux as a Source of Bearing Current of Converter-Fed AC Machines
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| Author(s) |
P. Mäki-Ontto; J. Luomi |
| Abstract |
A high-frequency common-mode current occurs in AC motors fed from frequency converters because of the very short rise time of inverter voltage pulses. The capacitive current causes electric and magnetic fields inside the stator iron core, possibly inducing a circulating-type bearing current. In this paper, the circumferential magnetic flux is investigated by means of finite element analysis and experiments. |
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| Filename: | Unnamed file |
| Filesize: | 472.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-27 by System |
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