Ironless Axial Flux PM Machine With Active Mechanical Flux Weakening For Automotive Applications

Author

Del Ferraro, L. ; Capponi, F. Giulii ; Terrigi, R. ; Caricchi, F. ; Honorati, O.

Author_Institution

Dept. of Electr. Eng., Rome Univ. "La Sapienza"

Volume

1

fYear

2006

fDate

8-12 Oct. 2006

Firstpage

1

Lastpage

7

Abstract

Because of their high compactness and lightness, together with high efficiency, axial-flux PM (AFPM) machines are among the most suitable candidates for several automotive applications. As a drawback, they are limited in speed range because voltage rises linearly with speed. For this reason, they are generally considered not well-suited for applications such as starter/alternators. As a solution, in this paper an AFPM ironless machine prototype with extended flux weakening capabilities is proposed. Flux weakening, and therefore output voltage regulation, is achieved mechanically through a small-sized actuator that displaces each other the two adjacent windings that compose the stator

Keywords

automobiles; magnetic flux; permanent magnet machines; stators; voltage control; AFPM ironless machine prototype; active mechanical flux weakening; automotive applications; extended flux weakening capability; ironless axial flux PM machine; output voltage regulation; small-sized actuator; stator windings; Actuators; Alternators; Automotive applications; Coils; Machine windings; Prototypes; Stator cores; Stator windings; Torque; Voltage; AFPM; Constant Power Speed Range; Flux Weakening; Starter/Alternator;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE

Conference_Location

Tampa, FL

ISSN

0197-2618

Print_ISBN

1-4244-0364-2

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2006.256512

Filename

4025179