Zusammenfassung
Im vorliegenden Beitrag wird die Messunsicherheit bei Bestimmung von aufgenommener Wirkleistung eines Mittelspannungsantriebs ermittelt und bewertet. Verglichen werden zwei Messsysteme im Hinblick auf ihren Einsatz im Mittelspannungsbereich sowie auf ihre Verwendbarkeit bei Multi-Level-Umrichter-Speisung. Hierzu werden zwei Methoden nach dem „Guide to the Expression of Uncertainty in Measurement“ (GUM) angewendet, um die Messunsicherheit der verwendeten Messsysteme vergleichbar zu machen. Die Ergebnisse sind aufschlussreich für kommende Anforderungen an die Energieeffizienz von Antrieben im Mittelspannungsbereich und die Einordnung in zukünftige Effizienzklassen.
Abstract
In this article the measurement uncertainty for the active power determination of a medium-voltage drive is determined and evaluated. There is a comparison between two measuring systems respective their use in the medium voltage range and their usability with a multilevel converter supply. Two methods according to the “Guide to the Expression of Uncertainty in Measurement” (GUM) are used to get a comparison for the measurement uncertainty of the measurement systems. The results are instructive for future demands on the energy efficiency of drives in the medium voltage range and for the classification in future efficiency classes.
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Schneider, S.M., Sayago, J., Centner, M. et al. Messunsicherheit der Leistungsmessung von umrichtergespeisten Antrieben im Mittelspannungsbereich. Elektrotech. Inftech. 134, 203–211 (2017). https://doi.org/10.1007/s00502-017-0496-0
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DOI: https://doi.org/10.1007/s00502-017-0496-0
Schlüsselwörter
- Wirkleistungsmessung
- Asynchronmaschine
- Multi-Level-Umrichter
- Mittelspannung
- Messunsicherheit
- Spannungsteiler
- Spannungswandler
- Stromwandler
- GUM