Power measurements of variable speed motors

Alexander Domijan, Dariusz Czarkowski, J. Herbert Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Accurate measurements of voltage, current, and power under nonsinusoidal conditions are essential for determining the efficiency of a drive system and performing separation of losses between an adjustable speed drive (ASD) and an electric motor. That information is invaluable for equipment designers, manufacturers, and users. Three modern power meters and analyzers were tested to determine their accuracy with various nonsinusoidal waveforms applied. The meters were subjected to waveforms that are characteristic to the three most common fractional and integral horsepower ASD technologies, namely, PWM induction, brushless dc, and switched-reluctance drives. The tests were performed under field conditions and in a computer-controlled laboratory environment. The obtained results show that some meters are able to measure accurately electric power at the input to ASD's. However, the output power of ASD's for brushless dc and switched-reluctance technology was not measured with acceptable accuracy by any of the tested meters. Possible reasons of meters inaccuracies and suggestions for performance improvement are presented. Conclusions on the present state of ASD electric power measurements and recommendations for further research are given.

Original languageEnglish (US)
Title of host publicationConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Editors Anon
PublisherIEEE
Pages89-96
Number of pages8
Volume1
StatePublished - 1997
EventProceedings of the 1997 IEEE Industry Applications Conference 32nd IAS Annual Meeting. Part 3 (of 3) - New Orleans, LA, USA
Duration: Oct 5 1997Oct 9 1997

Other

OtherProceedings of the 1997 IEEE Industry Applications Conference 32nd IAS Annual Meeting. Part 3 (of 3)
CityNew Orleans, LA, USA
Period10/5/9710/9/97

Fingerprint

Electric power measurement
Electric motors
Pulse width modulation
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Domijan, A., Czarkowski, D., & Johnson, J. H. (1997). Power measurements of variable speed motors. In Anon (Ed.), Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) (Vol. 1, pp. 89-96). IEEE.

Power measurements of variable speed motors. / Domijan, Alexander; Czarkowski, Dariusz; Johnson, J. Herbert.

Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). ed. / Anon. Vol. 1 IEEE, 1997. p. 89-96.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Domijan, A, Czarkowski, D & Johnson, JH 1997, Power measurements of variable speed motors. in Anon (ed.), Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). vol. 1, IEEE, pp. 89-96, Proceedings of the 1997 IEEE Industry Applications Conference 32nd IAS Annual Meeting. Part 3 (of 3), New Orleans, LA, USA, 10/5/97.
Domijan A, Czarkowski D, Johnson JH. Power measurements of variable speed motors. In Anon, editor, Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). Vol. 1. IEEE. 1997. p. 89-96
Domijan, Alexander ; Czarkowski, Dariusz ; Johnson, J. Herbert. / Power measurements of variable speed motors. Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). editor / Anon. Vol. 1 IEEE, 1997. pp. 89-96
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