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Magnetically Controlled Saturable Reactor Core Vibration Under Practical Working Conditions
- Source :
- IEEE Transactions on Magnetics. 53:1-4
- Publication Year :
- 2017
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2017.
-
Abstract
- Magnetically controlled saturable reactors (MCSRs) are widely used in high voltage power system, but they make larger vibration and noise than transformers and other types of reactors due to the gapped iron-core structure and magnetic saturation. The main reasons of MCSR vibration are magnetostrictive effect of silicon steel sheet and electromagnetic force between core discs. This paper studies the influence of these two kinds of forces on MCSR vibration, which will be used to help seek new vibration reduction method. Firstly, because MCSRs work in DC bias conditions, multigroup magnetic and magnetostrictive characteristics of silicon steel sheet considering anisotropy under different DC bias excitation conditions are tested. Secondly, based on energy variation principle and virtual work principle, an electro-magneto-mechanical coupled numerical model for MCSRs is established. In order to compare the influence of magnetostrictive effect with electromagnetic force effect on MCSR vibration, vibration accelerations caused by magnetostrictive effect, electromagnetic force and the combination of them are calculated, respectively. From the computation results, it can be seen that the total acceleration is not simple superposition of electromagnetic acceleration with magnetostrictive acceleration. Finally, vibrations of a MCSR under different practical working conditions are tested to prove the validity of the proposed model.
- Subjects :
- Materials science
02 engineering and technology
engineering.material
01 natural sciences
law.invention
Stress (mechanics)
Superposition principle
Magnetization
Nuclear magnetic resonance
law
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Inverse magnetostrictive effect
010306 general physics
Transformer
Physics
010302 applied physics
business.industry
020208 electrical & electronic engineering
Electrical engineering
Magnetostriction
Mechanics
Saturable reactor
Electronic, Optical and Magnetic Materials
Vibration
engineering
business
DC bias
Electrical steel
Subjects
Details
- ISSN :
- 19410069 and 00189464
- Volume :
- 53
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Magnetics
- Accession number :
- edsair.doi.dedup.....887864ce030811ca6f03be15d62fa30c