Modelling of Vibrations Caused by Magnetostriction in Magnetic Core of Large Power Transformers
2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON): Proceedings
2017
Jānis Mārks,
Sandra Vītoliņa,
Rūta Liepniece
Large power transformers are an important
component of the power system, because mainly they are the
connecting points between generators, transmission system and
distribution system. Although transformers are considered as
electrical devices with high operation reliability, various faults
can occur due to internal or external causes. Mechanical defects
mainly are caused by electrodynamic forces and
magnetostriction. It is relatively difficult to determine this type of
faults directly; however technical condition can be evaluated
through analysis of vibration pattern measured on transformer
tank. This paper describes a model developed in COMSOL and
Matlab software for estimation of elastic deformations of
magnetic core caused by magnetostriction. The results are
provided as a case study.
Atslēgas vārdi
magnetostriction; power transformers; fault diagnosis
DOI
10.1109/RTUCON.2017.8124760
Hipersaite
http://ieeexplore.ieee.org/document/8124760/
Mārks, J., Vītoliņa, S., Liepniece, R. Modelling of Vibrations Caused by Magnetostriction in Magnetic Core of Large Power Transformers. No: 2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON): Proceedings, Latvija, Riga, 12.-13. oktobris, 2017. Piscataway: IEEE, 2017, 1.-5.lpp. ISBN 978-1-5386-3847-7. e-ISBN 978-1-5386-3846-0. Pieejams: doi:10.1109/RTUCON.2017.8124760
Publikācijas valoda
English (en)