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.
Keywords
Electromagnetic steel sheet, Iron loss, Hysteresis loss, Classical eddy current loss, Play model, Lamination 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 |
