The aim of this work is to propose a new approach for the iron losses prediction, in soft magnetic materials with any voltage supply, starting from the knowledge of the iron losses with sinusoidal supply. The model is based on the separation of the loss contributions due to hysteresis, eddy currents and excess losses with sinusoidal supply. Since any contribution depends on the voltage supply characteristics, it is possible to find a direct mathematical relationship between the iron loss contribution and the voltage supply characteristics. As a consequence, an iron loss prediction can be obtained with any voltage supply, which does not produce hysteresis minor loop. The energetic model is based on coefficients that depend on the material characteristic. An accurate analysis of the model on eight magnetic materials, of different thickness and alloy, has been made, so the main coefficients for a large spread of magnetic materials, used for the electrical machines construction, have been found. The paper can be a useful support for electrical machine designers when the energetic performances of magnetic material, have to be predicted with the voltage supply different from the sinusoidal one

A simplified method for the iron losses prediction in soft magnetic materials with arbitrary voltage supply / Boglietti, Aldo; Lazzari, Mario; Pastorelli, MICHELE ANGELO. - STAMPA. - 1:(2000), pp. 269-276. (Intervento presentato al convegno IEEE Industry Application Society Annual Meeting tenutosi a Roma - Italia nel 8-12 october) [10.1109/IAS.2000.881117].

A simplified method for the iron losses prediction in soft magnetic materials with arbitrary voltage supply

BOGLIETTI, Aldo;LAZZARI, MARIO;PASTORELLI, MICHELE ANGELO
2000

Abstract

The aim of this work is to propose a new approach for the iron losses prediction, in soft magnetic materials with any voltage supply, starting from the knowledge of the iron losses with sinusoidal supply. The model is based on the separation of the loss contributions due to hysteresis, eddy currents and excess losses with sinusoidal supply. Since any contribution depends on the voltage supply characteristics, it is possible to find a direct mathematical relationship between the iron loss contribution and the voltage supply characteristics. As a consequence, an iron loss prediction can be obtained with any voltage supply, which does not produce hysteresis minor loop. The energetic model is based on coefficients that depend on the material characteristic. An accurate analysis of the model on eight magnetic materials, of different thickness and alloy, has been made, so the main coefficients for a large spread of magnetic materials, used for the electrical machines construction, have been found. The paper can be a useful support for electrical machine designers when the energetic performances of magnetic material, have to be predicted with the voltage supply different from the sinusoidal one
2000
0780364015
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1407550
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo