In modern vehicles, the demand for on-board electric energy generation is rapidly growing in order to satisfy new requirements for passengers comfort and safety. This growth, which is predicted to reach 6 kW in the very next years, is forcing manufacturers to explore new solutions concerning the whole electrical system inside the vehicle. In particular, novel topologies of alternators are under research since the currently used Lundell type (claw-pole) alternator is reaching its power limits. In this paper an original torque dependant mechanical device is proposed in order to extend the speed range of an axial flux PM machine. This device displaces the rotors realizing a mechanical flux weakening with constant output power in generation. Simulations and experimental tests on a prototype realized in the lab are fully discussed.
Axial-Flux PM Starter/Alternator Machine with a Novel Mechanical Device for Extended Flux Weakening Capabilities / L., Del Ferraro; Caricchi, Federico Attilio; GIULII CAPPONI, Fabio; DE DONATO, Giulio. - STAMPA. - 2:(2004), pp. 1413-1419. (Intervento presentato al convegno Proc. of 39th Annual Meeting of IEEE-IAS Industry Applications Society, IAS 2004 tenutosi a Seattle (USA) nel 3-7/10/2004) [10.1109/IAS.2004.1348607].
Axial-Flux PM Starter/Alternator Machine with a Novel Mechanical Device for Extended Flux Weakening Capabilities
CARICCHI, Federico Attilio;GIULII CAPPONI, Fabio;DE DONATO, Giulio
2004
Abstract
In modern vehicles, the demand for on-board electric energy generation is rapidly growing in order to satisfy new requirements for passengers comfort and safety. This growth, which is predicted to reach 6 kW in the very next years, is forcing manufacturers to explore new solutions concerning the whole electrical system inside the vehicle. In particular, novel topologies of alternators are under research since the currently used Lundell type (claw-pole) alternator is reaching its power limits. In this paper an original torque dependant mechanical device is proposed in order to extend the speed range of an axial flux PM machine. This device displaces the rotors realizing a mechanical flux weakening with constant output power in generation. Simulations and experimental tests on a prototype realized in the lab are fully discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
