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 for the isolation of anomalous eddy current loss, and calculating iron loss using iron loss characteristics data.
Table a-1 Iron loss analysis procedures
| Method | Iron loss calculation timing | Algorithm | Excess eddy current loss handling |
|---|---|---|---|
| A | Magnetic field analysis post-processing |
Iron loss characteristics data | Taken into account |
| B | Magnetic field analysis post-processing |
Iron loss characteristics data | Taken into account Separate and evaluate |
| C | Magnetic field analysis post-processing |
Play model Lamination analysis |
Not taken into account |
| D | Magnetic field analysis post-processing |
Play model Lamination analysis |
Taken into account |
| E | During magnetic field analysis | Play model Lamination analysis |
Not taken into account |
Keywords
electromagnetic steel sheet, iron loss, iron loss characteristics data, hysteresis loss, eddy current loss, excess eddy current loss, play model, lamination analysis
