Open AccessA new pulse measurement method for magnetisation characteristics of small loss angle core
Author(s) -
Jinghui Wang,
Dayi Su,
Wei Chen
Publication year - 2021
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/pel2.12006
Subject(s) - magnetization , magnetic core , analyser , materials science , permeability (electromagnetism) , electrical impedance , voltage , inductance , observational error , nuclear magnetic resonance , pulse (music) , inductor , ferrite core , acoustics , electromagnetic coil , magnetic field , physics , optics , electrical engineering , chemistry , engineering , mathematics , biochemistry , statistics , quantum mechanics , membrane
It is difficult to measure the magnetisation characteristics of magnetic powder cores with small loss angle and high saturation flux density. Here, a new pulse measurement method is proposed, in which the capacitance with preset bias voltage applies pulse excitation voltage to the measured magnetic component through RLC oscillation discharge, and the air core inductor whose permeability is vacuum permeability is used as the standard magnetic component to eliminate the numerical differential error of the traditional pulse measurement method. Based on the detailed analysis of the measurement principle and error source of the new pulse measurement method, the measurement system is established. The impedance analyser method is used to verify that it can accurately measure the magnetisation characteristics of the magnetic powder core with small loss angle.