The Estimation of Power Losses in Composite Cores Excited by Harmonic Flux Density Waveforms

被引：0

作者：

Najgebauer, Mariusz ^{[1
]}

Gziel, Damian ^{[1
]}

Kalinowski, Jaroslaw ^{[2
]}

Koprivica, Branko ^{[3
]}

机构：

[1] Czestochowa Tech Univ, Fac Elect Engn, Al Armii Krajowej 17, PL-42201 Czestochowa, Poland

[2] Czestochowa Tech Univ, Fac Civil Engn, Al Akad 3, PL-42201 Czestochowa, Poland

[3] Univ Kragujevac, Fac Tech Sci Cacak, Svetog Save 65, Cacak 32102, Serbia

来源：

ENERGIES | 2024年 / 17卷 / 23期

关键词：

soft magnetic composites; harmonic excitations; harmonic losses modelling; IRON LOSS; FREQUENCY; STEELS;

D O I：

10.3390/en17235865

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents a study of the empirical approach to the estimation of power losses in composite cores excited by harmonic flux density waveforms. Nowadays, magnetic cores operating in power electronic devices are excited by distorted (e.g., harmonic) flux density waveforms. Magnetic material properties are mostly determined for sinusoidal waveforms of the magnetic flux density. However, these properties can vary significantly in the case of harmonic excitations, which affects the devices' efficiency. The effect of harmonic flux density waveform parameters (amplitude ratio and phase angle) on the level of power losses in soft magnetic composites is analyzed. A simple, empirical model of harmonic losses based on standardized measurements, i.e., carried out for sinusoidal flux density waveforms, is modified and validated. It is revealed that the empirical approach to estimating harmonic losses can be applied to magnetic composites with satisfactory modelling results.

引用

页数：15