Micro-stepping control of a two-phase linear stepping motor with three-phase VSI inverter for high-speed applications

This paper presents a synchronous frame current control scheme for micro-stepping a two-phase linear stepping motor drive using a three-phase voltage-source inverter. Because of the wide operating frequency, the frequency-dependent voltages are decoupled from the controller to reduce the current-fol...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2004-09, Vol.40 (5), p.1257-1264
Main Authors: Yang, S.-M., Lin, F.-C., Chen, M.-T.
Format: Article
Language:English
Subjects:
Cogging
Current control
Electric potential
Error correction
Errors
Forging
Frequency
Inverters
Micromotors
Motor drives
Motors
Pulse duration modulation
Pulse width modulation inverters
Space vector pulse width modulation
Stepping motors
Synchronous motors
Voltage
Voltage control
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Summary:This paper presents a synchronous frame current control scheme for micro-stepping a two-phase linear stepping motor drive using a three-phase voltage-source inverter. Because of the wide operating frequency, the frequency-dependent voltages are decoupled from the controller to reduce the current-following errors and preserve the dynamic characteristics as the frequency varies. A motor cogging force compensation scheme performed in the synchronous frame is proposed to reduce the positioning error and velocity ripple caused by the cogging force. A space-vector pulse width modulation scheme is used for motor voltage modulation. This scheme is based on the harmonic injection principle originally derived for three-phase motor drives. Good static and dynamic performance is obtained in the experimental verifications.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2004.834040