Reducing the Losses of Electrical Machines under Torsional Vibration

Antero Arkkio; Eemeli Mölsä; Timo P. Holopainen

doi:10.1109/ICELMACH.2018.8507161

Reducing the Losses of Electrical Machines under Torsional Vibration

Antero Arkkio, Eemeli Mölsä, Timo P. Holopainen

Department of Electrical Engineering and Automation

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

2 Citations (Scopus)

167 Downloads (Pure)

Abstract

Electric drivetrains have an almost rigid-body torsional vibration mode at a low natural frequency. If a torsional excitation occurs close to this frequency, the vibration amplitude may grow large, and the losses of the electrical machine may significantly increase. The possibilities to reduce or eliminate these additional losses are studied. When the machine is connected directly to the grid, the possibilities for vibration control mainly come from mechanical solutions. If the machine is fed from a frequency converter, there are several potential ways to suppress the additional losses. The torsional vibration control of electric drivetrains is studied from loss minimization point of view. This is the novelty of the paper.

Original language	English
Title of host publication	Proceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018
Publisher	IEEE
Pages	1303-1309
Number of pages	7
ISBN (Electronic)	9781538624777
DOIs	https://doi.org/10.1109/ICELMACH.2018.8507161
Publication status	Published - 24 Oct 2018
MoE publication type	A4 Article in a conference publication
Event	International Conference on Electrical Machines - Ramada Plaza Thraki, Alexandroupoli, Greece Duration: 3 Sep 2018 → 6 Sep 2018 Conference number: 23 https://www.icem.cc/2018/

Conference

Conference	International Conference on Electrical Machines
Abbreviated title	ICEM
Country/Territory	Greece
City	Alexandroupoli
Period	03/09/2018 → 06/09/2018
Internet address	https://www.icem.cc/2018/

Keywords

Electrical machines
Electromagnetic losses
Finite-element analysis
Torsional vibrations

Access to Document

10.1109/ICELMACH.2018.8507161

ELEC_Arkkio_etal_Reducing-the-Losses-of-Electrical_ICEM2018Accepted author manuscript, 255 KB

Cite this

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title = "Reducing the Losses of Electrical Machines under Torsional Vibration",

abstract = "Electric drivetrains have an almost rigid-body torsional vibration mode at a low natural frequency. If a torsional excitation occurs close to this frequency, the vibration amplitude may grow large, and the losses of the electrical machine may significantly increase. The possibilities to reduce or eliminate these additional losses are studied. When the machine is connected directly to the grid, the possibilities for vibration control mainly come from mechanical solutions. If the machine is fed from a frequency converter, there are several potential ways to suppress the additional losses. The torsional vibration control of electric drivetrains is studied from loss minimization point of view. This is the novelty of the paper.",

keywords = "Electrical machines, Electromagnetic losses, Finite-element analysis, Torsional vibrations",

author = "Antero Arkkio and Eemeli M{\"o}ls{\"a} and Holopainen, {Timo P.}",

note = "| openaire: EC/FP7/339380/EU//ALEM; International Conference on Electrical Machines, ICEM ; Conference date: 03-09-2018 Through 06-09-2018",

year = "2018",

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doi = "10.1109/ICELMACH.2018.8507161",

language = "English",

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publisher = "IEEE",

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T1 - Reducing the Losses of Electrical Machines under Torsional Vibration

AU - Arkkio, Antero

AU - Mölsä, Eemeli

AU - Holopainen, Timo P.

N1 - Conference code: 23

PY - 2018/10/24

Y1 - 2018/10/24

N2 - Electric drivetrains have an almost rigid-body torsional vibration mode at a low natural frequency. If a torsional excitation occurs close to this frequency, the vibration amplitude may grow large, and the losses of the electrical machine may significantly increase. The possibilities to reduce or eliminate these additional losses are studied. When the machine is connected directly to the grid, the possibilities for vibration control mainly come from mechanical solutions. If the machine is fed from a frequency converter, there are several potential ways to suppress the additional losses. The torsional vibration control of electric drivetrains is studied from loss minimization point of view. This is the novelty of the paper.

AB - Electric drivetrains have an almost rigid-body torsional vibration mode at a low natural frequency. If a torsional excitation occurs close to this frequency, the vibration amplitude may grow large, and the losses of the electrical machine may significantly increase. The possibilities to reduce or eliminate these additional losses are studied. When the machine is connected directly to the grid, the possibilities for vibration control mainly come from mechanical solutions. If the machine is fed from a frequency converter, there are several potential ways to suppress the additional losses. The torsional vibration control of electric drivetrains is studied from loss minimization point of view. This is the novelty of the paper.

KW - Electrical machines

KW - Electromagnetic losses

KW - Finite-element analysis

KW - Torsional vibrations

UR - http://www.scopus.com/inward/record.url?scp=85057182600&partnerID=8YFLogxK

U2 - 10.1109/ICELMACH.2018.8507161

DO - 10.1109/ICELMACH.2018.8507161

M3 - Conference contribution

AN - SCOPUS:85057182600

SP - 1303

EP - 1309

BT - Proceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018

PB - IEEE

T2 - International Conference on Electrical Machines

Y2 - 3 September 2018 through 6 September 2018

ER -

Reducing the Losses of Electrical Machines under Torsional Vibration

Abstract

Conference

Keywords

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Other files and links

Fingerprint

ALEM: Additional Losses in Electrical Machines

Cite this

Reducing the Losses of Electrical Machines under Torsional Vibration

Abstract

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Projects

ALEM: Additional Losses in Electrical Machines

Cite this