"PM motors for direct driving optical telescope"

"PM motors for direct driving optical telescope" Copyright - [Précédente] [Première page] [Suivante] - Home

Référence : [242] pap092

Titre : PM motors for direct driving optical telescope

Auteurs : Leonardi F., Venturini, Marco, Vismara A. - McCleer Power Inc., Jackson, MI, USA

Revue : IEEE Industry Applications Magazine
Pages : 10 - 16
Date : July-Aug. 1996, Vol. 2, Issue: 4
ISSN : 1077-2618

Ref. : 5
Info : CODEN: IIAMEG,Accession Number: 5318205
Stockage :

Abstract :
This article details the task of developing the drive systems for VLT (Very Large Telescope) control. The project entails the
realization and the coordinated operation of four 8 m diameter optical telescopes in Chile for the period 1995-1998. A direct
drive system has been chosen as the optimal drive solution from a performance standpoint. It consists of a segmental dual axial air
gap brushless motor which is an unusually large torque motor, which must be manufactured piecewise and assembled on-site.
Furthermore, the torque motor must couple in the stiffest possible way to the relatively light telescope assembly, and the
thermal perturbations to the environment must be minimized. Finally, in spite of their very large size, the torque motors
must be controlled with a very high control bandwidth; the torque slew rate must be extremely steep. The authors describe the
design of the drive system including motor torque ripple. Finite element analysis of the motor is also discussed.

Subject_Terms :
astronomical telescopes; telescopes; permanent magnet motors; brushless machines; torque motors; machine control; torque
control; air gaps; finite element analysis; AC motor drives; direct driving; optical telescope; PM motors; Very Large
Telescope control; Chile; direct drive system; segmental dual axial air gap brushless motor; torque motor; stiff coupling;
thermal perturbations; very high control bandwidth; torque slew rate; motor torque ripple; finite element analysis; 8 m

Cité dans : [DIV100]  Recherche sur l'auteur VENTURINI et CONVERTER, août 1998.

Mise à jour le lundi 10 avril 2023 à 18 h 54 - E-mail : thierry.lequeu@gmail.com
Cette page a été produite par le programme TXT2HTM.EXE, version 10.7.3 du 27 décembre 2018.

Les informations contenues dans cette page sont à usage strict de Thierry LEQUEU et ne doivent être utilisées ou copiées par un tiers.
Powered by www.google.fr, www.e-kart.fr, l'atelier d'Aurélie - Coiffure mixte et barbier, La Boutique Kit Elec Shop and www.lequeu.fr.