Title:
Title:
Accurate Rotational Speed Measurement for Determining the Mechanical Power and Efficiency of Electrical Machines
Authors:
Authors:
Song, Zihang, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.2, Festkörpermechanik, ORCID: 0000-0001-8153-1206
Weidinger, Paula, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.2, Festkörpermechanik, ORCID: 0000-0003-2978-0672
Kumme, Rolf, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.2, Festkörpermechanik
Contributors:
Contributors:
HostingInstitution: Physikalisch-Technische Bundesanstalt, ISNI: 0000 0001 2186 1887
Pages:
Pages:
5
Languages:
Languages:
en
DOI:
DOI:
10.7795/EMPIR.19ENG08.CA.20230831A
Resource Type:
Resource Type:
PTB: Conference Article, DINI: ConferencePaper, DataCite: ConferencePaper
Publisher:
Publisher:
Physikalisch-Technische Bundesanstalt
Rights:
Rights:
Download for personal/private use only, if your national copyright law allows this kind of use.
Relationships:
Relationships:
IsIdenticalTo: DOI 10.23919/ICEMS52562.2021.9634265
Dates:
Dates:
Available: 2023-09-01
Created: 2023
File:
File:
Download File (application/pdf) 704.9 KB
MD5 Checksum: 10a36fbbc1c82120745cc55759ca9f95
SHA256 Checksum: c1190b7250d6cfba8056cc9196432d2faa73fb5e4ff290ad92d7cb951f83d020
Keywords:
Keywords:
rotational speed measurement ; encoder ; mechanial power measurement ; efficiency determination
Abstract:
Abstract:
Accurately measuring the mechanical power of electrical machines is essential for determining their efficiency. Conventionally, the machines' rotational speed is measured over a short time interval with a high measurement uncertainty. In this paper, we propose a rotational speed determination based on the angle covered within a longer time interval. This method is shown to achieve a higher accuracy for the determination of mechanical power and total efficiency with negligible systematic effect.
Other:
Other:
This is an author-created, un-copyedited version of a Conference contribution published in 2021 24th International Conference on Electrical Machines and Systems (ICEMS), 2021, 10.23919/ICEMS52562.2021.9634265.
Citation:
Citation:
Song, Zihang ; et al., Accurate Rotational Speed Measurement for Determining the Mechanical Power and Efficiency of Electrical Machines Physikalisch-Technische Bundesanstalt (PTB), 2023. DOI: https://doi.org/10.7795/EMPIR.19ENG08.CA.20230831A
Funding:
Funding:
European Commission (EC), ISNI: 0000 0001 2162 673X, Grant Title: Traceable mechanical and electrical power measurement for efficiency determination of wind turbines, Grant Number: EMPIR 19ENG08 WindEFCY

Authors

Song, Zihang, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.2, Festkörpermechanik, ORCID: 0000-0001-8153-1206
Weidinger, Paula, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.2, Festkörpermechanik, ORCID: 0000-0003-2978-0672
Kumme, Rolf, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.2, Festkörpermechanik

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