Sensorless full-digital PMSM drive with EKF estimation of speed androtor position
Bolognani, S.; Oboe, R.; Zigliotto, M.
Industrial Electronics, IEEE Transactions on
Volume 46, Issue 1, Feb 1999 Page(s):184 - 191
Digital Object Identifier 10.1109/41.744410
Summary: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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