| Abstract |
In the paper a few models for calculation of iron loss in the AC machines and transformers at nonsinusoidal
feeding are presented. The differences between the models relate to their form (analytical,
simulation), mode of feeding (voltage, current) and to the assumed simplifications, which have effect
for the accuracy and frequency range of application. The simplest model has the form of analytical
formula, the most compound one reproduces the saturation, hysteresis and eddy current phenomena. In
the paper there is description of the separate models and comparison of high harmonic losses obtained
with the aid of them for feeding from the voltage as well as current source inverter. There are also
given conclusions related to the range of application of the separate models. |
