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Experimental evaluation of the impact of harmonics on induction motors fed by modular multilevel converters
KTH, Skolan för elektro- och systemteknik (EES), Elektrisk energiomvandling.
KTH, Skolan för elektro- och systemteknik (EES), Elektrisk energiomvandling.
KTH, Skolan för elektro- och systemteknik (EES), Elektrisk energiomvandling.ORCID-id: 0000-0002-8990-3745
KTH, Skolan för elektro- och systemteknik (EES), Elektrisk energiomvandling.
Vise andre og tillknytning
2014 (engelsk)Inngår i: Proceedings - 2014 International Conference on Electrical Machines, ICEM 2014, 2014, s. 768-775Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

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.

sted, utgiver, år, opplag, sider
2014. s. 768-775
Emneord [en]
Harmonic Distortion, Harmonic Losses, Induction Machines, Inverter, Modular Multilevel Converters, Temperature Measurements, Winding Resistance, Electric inverters, Electric machinery, Electric resistance, Harmonic analysis, Machine windings, Temperature measurement, Winding, Harmonic loss, Winding resistances, Induction motors
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Identifikatorer
URN: urn:nbn:se:kth:diva-168852DOI: 10.1109/ICELMACH.2014.6960268ISI: 000358567800113Scopus ID: 2-s2.0-84916197075ISBN: 9781479943890 (tryckt)OAI: oai:DiVA.org:kth-168852DiVA, id: diva2:820832
Konferanse
21st International Conference on Electrical Machines, ICEM 2014, 2 September 2014 through 5 September 2014
Merknad

QC 20150612

Tilgjengelig fra: 2015-06-12 Laget: 2015-06-09 Sist oppdatert: 2015-09-11bibliografisk kontrollert

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Soulard, JulietteNee, Hans-Peter

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