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Experimental evaluation of the impact of harmonics on induction motors fed by modular multilevel converters
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Antonopoulos, A., Moree, G., Soulard, Juliette, Angquist, L. and Nee, H.-P. (2014) Experimental evaluation of the impact of harmonics on induction motors fed by modular multilevel converters. In: Proceedings - International Conference on Electrical Machines 2014, Berlin, 02-05 Sep 2014. Published in: Proceedings of the 2014 International Conference on Electrical Machines (ICEM), 2014 pp. 768-775. ISBN 9781479943890. doi:10.1109/ICELMACH.2014.6960268
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Official URL: http://dx.doi.org/10.1109/ICELMACH.2014.6960268
Abstract
Inverter-based electrical-machine drives suffer from significantly higher losses compared to sinusoidal-supply-based alternatives, fed directly from the grid. Using multilevel inverters it becomes possible to partially mitigate the effects of the switched supply waveform, while keeping the advantages of variable-speed operation. This paper aims to evaluate the increase of the losses occurring in an induction motor (IM) fed by a modular multilevel converter (M2C), when compared to grid-connected operation, in order to evaluate the impact of the inverter-generated harmonics in the machine. It is confirmed that the losses created in the motor due to the harmonic content of the inverter-generated waveforms are very low, and almost equivalent to a purely sinusoidal supply. The investigation includes an analysis of the harmonic content from experimental waveforms obtained by an 11-kW IM laboratory setup, and it is further supported by measurements of the temperature rise in the IM-stator windings. It is concluded that the M2C could create the conditions even for high-power motors to be operated without any derating.
| Item Type: | Conference Item (Paper) | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Journal or Publication Title: | Proceedings of the 2014 International Conference on Electrical Machines (ICEM) | ||||
| Publisher: | IEEE | ||||
| ISBN: | 9781479943890 | ||||
| Book Title: | 2014 International Conference on Electrical Machines (ICEM) | ||||
| Official Date: | 2014 | ||||
| Dates: |
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| Volume: | 2014 | ||||
| Page Range: | pp. 768-775 | ||||
| DOI: | 10.1109/ICELMACH.2014.6960268 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Conference Paper Type: | Paper | ||||
| Title of Event: | Proceedings - International Conference on Electrical Machines 2014 | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Berlin | ||||
| Date(s) of Event: | 02-05 Sep 2014 | ||||
| Related URLs: |
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