Sensorless full-digital PMSM drive with EKF estimation of speed androtor position
Bolognani, S.
Oboe, R.
Zigliotto, M.
Dept. of Electr. Eng., Padova Univ.;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 1999
Volume: 46,
Issue: 1
On page(s): 184-191
ISSN: 0278-0046
References Cited: 22
CODEN: ITIED6
INSPEC Accession Number: 6169958
Digital Object Identifier: 10.1109/41.744410
Current Version Published: 2002-08-06
Abstract
This paper concerns the realization of a sensorless permanent
magnet (PM) synchronous motor drive. Position and angular speed of the
rotor are obtained through an extended Kalman filter. The estimation
algorithm does not require either the knowledge of the mechanical
parameters or the initial rotor position, overcoming two of the main
drawbacks of other estimation techniques. The drive also incorporates a
digital d-q current control, which can be easily tuned with locked
rotor. The experimental setup includes a PM synchronous motor, a
pulsewidth modulation voltage-source inverter, and floating-point
digital-signal-processor-based control system
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