Active Output Voltage Regulation for an Ironless Axial-Flux PM Automotive Alternator with Electromechanical Flux Weakening

Author

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

Author_Institution

Univ. of Rome "La Sapienza", Rome

fYear

2007

Firstpage

1694

Lastpage

1701

Abstract

Aim of the paper is to present a solution for active output voltage regulation in PM automotive alternators, though mechanical flux weakening. An AFPM ironless machine is investigated, composed of two stators connected in series which can be shifted one with respect to the other, thus allowing a theoretically infinite constant power speed range. The paper focuses on the aspects related to layout, sizing and control of the shifting mechanism, which are critical for accurate output voltage regulation. Experimental tests on a 2 kW prototype will validate the capabilities of the proposed solution, both during steady-state and during transient operating conditions.

Keywords

alternators; automotive components; stators; AFPM ironless machine; PM automotive alternator; active output voltage regulation; electromechanical flux weakening; ironless axial flux; stators; Actuators; Alternators; Automotive engineering; Control systems; Displacement control; Prototypes; Stator windings; Testing; Vehicle safety; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

978-1-4244-1259-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/07IAS.2007.260

Filename

4348009