[JFT091] Taking into Account Iron Loss in Magnetic Field Analysis

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Overview

There is growing demand for higher efficiency in the design of electrical equipment. In order to evaluate efficiency during simulation, loss must be determined with high accuracy. Loss can be divided into copper loss, iron loss, stray loss, or mechanical loss depending on the location. How iron loss is generated is particularly complicated making it necessary to select an appropriate calculation method. JMAG supports multiple calculation methods, each appropriate to a given iron loss calculation timing, algorithm used, and excess eddy current loss (Table a-1).
In this document, describes an analysis procedure accounting for iron loss in magnetic field analysis.

Table a-1 Iron loss analysis procedures

Method Iron loss calculation timing Algorithm Excess eddy current loss handling
A Electromagnetic post-processing Iron loss characteristics data Taken into account
B Electromagnetic post-processing Iron loss characteristics data Taken into account
Several different kinds of evaluations
C Electromagnetic post-processing Play model
lamination analysis
Not taken into account
D Electromagnetic post-processing Play model
lamination analysis
Taken into account
E During electromagnetic analysis Play model
lamination analysis
Not taken into account

Keywords

Electromagnetic steel sheet, Iron loss, Hysteresis loss, Classical eddy current loss, Play model, Lamination analysis

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