Position-sensorless drive of linear pulse motor for suppressingtransient vibration
Hirai, J.; Tae-Woong Kim; Kawamura, A.
Industrial Electronics, IEEE Transactions on
Volume 47, Issue 2, Apr 2000 Page(s):337 - 345
Digital Object Identifier 10.1109/41.836349
Summary:The linear pulse motor (LPM) has been widely used because of its
simple structure and easy control without the use of feedback. However,
degradation of the response performance occurs, resulting from the
transient vibration which is inherent in the LPM. The fastest way to
suppress the vibration is to close the control loop using the position
feedback sensor, However, the straightforward use of such a sensor
feedback leads to higher cost and complicated configuration, sacrificing
the structural advantage of the LPM. Therefore, the authors propose a
Kalman filter-based sensorless control for suppressing the transient
vibration. In this proposed control method, the LPM mover position and
speed are optimally estimated using an extended Kalman filter applied to
the nonlinear state equations of excitation winding circuits. The
effectiveness of this method is confirmed by experiments on a prototype
LPM control system using a digital signal processor
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