Joint Identification of Stepper Motor Parameters and of Initial Encoder Offset

Delpoux, Romain; Bodson, Marc; Floquet, Thierry

Document type :

Communication dans un congrès avec actes

Title :

Joint Identification of Stepper Motor Parameters and of Initial Encoder Offset

Author(s) :

Delpoux, Romain [Auteur]
Non-Asymptotic estimation for online systems [NON-A]
Laboratoire d'Automatique, Génie Informatique et Signal [LAGIS]
Bodson, Marc [Auteur]
Floquet, Thierry [Auteur]

Non-Asymptotic estimation for online systems [NON-A]
Systèmes Non Linéaires et à Retards [SyNeR]

Conference title :

16th IFAC Symposium on System Identification

City :

Brussels

Country :

Belgique

Start date of the conference :

2012-07-11

Publication date :

2012

HAL domain(s) :

Sciences de l'ingénieur [physics]/Automatique / Robotique

English abstract : [en]

The paper presents a new procedure to identify at the same time the electrical parameters of a permanent magnet stepper motor (PMSM) and the initial offset of an incremental encoder. The model considers effects due to the ...
Show more >The paper presents a new procedure to identify at the same time the electrical parameters of a permanent magnet stepper motor (PMSM) and the initial offset of an incremental encoder. The model considers effects due to the permanent magnet and to variable reluctance, and the resulting theory is applicable to cases where both or only one of these terms is present. The standard DQ model of PMSM's assumes that the permanent magnet is lined up with a winding when the position is zero. When an incremental encoder is used, an initialization procedure is required to zero the initial offset. In contrast, this paper computes a transformed model that accounts for the initial offset. then develops a least-squares identification algorithm that estimates the machine's electrical parameters together with the offset angle. Experiments show that the estimation procedure and a closed-control method using the estimated offset perform similarly compared to when the offset is reset to zero using an initialization procedure.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL

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