A Computational Technique for Iron Losses in Electrical Machines

This paper aims to compare different methods for the computation of the iron losses. First of all, a brief recall on iron losses models is considered. In particular, Bertotti's formula, a homogenization technique and a vectorized Jiles-Atherton model are implemented. Afterwards, the adopted methods are validated considering an iron ring and an inset PM synchronous machine. A comparison between experimental measurements on the iron ring and the adopted methods is presented. The inset PM synchronous machine is simulated in different operating conditions: both at standstill and no load. Good agreement has been found between the results.