Open AccessVibration of saturable reactor core used in HVDC converter valve system
Author(s) -
Zhang Pengning,
Li Lin
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0842
Subject(s) - vibration , magnetostriction , finite element method , materials science , magnetic core , magnetic field , core (optical fiber) , displacement (psychology) , magnetic circuit , acoustics , structural engineering , engineering , physics , electrical engineering , electromagnetic coil , composite material , psychology , quantum mechanics , psychotherapist
The vibration and noise of the saturable reactor used in A5000 converter valve are serious problems, and the main factor of the vibration is the magnetostrictive effect caused by AC harmonic currents. In order to study the vibration mechanism of the saturable reactor core, the magnetic field, circuit, and structure field are coupled based on finite element method (FEM) and the improved magnetostrictive model. The magnetic flux density, displacement, magnetostriction force, and Maxwell force of a single core are simulated when it is working < 200 Hz AC voltage of different amplitude. A single core of the saturable reactor vibration experiment platform is built to validate the simulation. The calculated vibration acceleration is consistent with the experimental data. The aim of the study is to predict the core's vibration level and build a basis for seeking new vibration reduction methods at the design stage of saturable reactor.