In order to limit losses in high-frequency transformers and inductor windings, special and expensive solutions such as Litz Wire are often adopted. The high cost of these wires is due to the complex process needed for realizing a thin insulating coating for each of the several single copper wires that form the strand. In this paper, an Aluminium Multi-Wire is proposed as a low cost alternative to Litz Wire. Insulation between conductors is achieved by anodization, which is a commonly used process in the aluminium industry. Hence, the proposed solution can potentially drop the cost in electrical machines and in many other applications operating at high-frequency. © 2007 IEEE.
Aluminium multi-wire for high-frequency electric machines / Luca Del, Ferraro; GIULII CAPPONI, Fabio. - STAMPA. - (2007), pp. 89-93. (Intervento presentato al convegno 2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS tenutosi a New Orleans, LA nel 23 September 2007 through 27 September 2007) [10.1109/07ias.2007.9].
Aluminium multi-wire for high-frequency electric machines
GIULII CAPPONI, Fabio
2007
Abstract
In order to limit losses in high-frequency transformers and inductor windings, special and expensive solutions such as Litz Wire are often adopted. The high cost of these wires is due to the complex process needed for realizing a thin insulating coating for each of the several single copper wires that form the strand. In this paper, an Aluminium Multi-Wire is proposed as a low cost alternative to Litz Wire. Insulation between conductors is achieved by anodization, which is a commonly used process in the aluminium industry. Hence, the proposed solution can potentially drop the cost in electrical machines and in many other applications operating at high-frequency. © 2007 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
