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Zeitschriftenartikel:

A. Katalenic, H. Butler, P. van den Bosch:
"High-Precision Force Control of Short-Stroke Reluctance Actuators with an Air Gap Observer";
IEEE/ASME Transactions on Mechatronics, 21 (2016), 5; S. 2431 - 2439.



Kurzfassung englisch:
A short-stroke reluctance actuator linearization
scheme that simultaneously achieves high linearity,
high bandwidth, and low stiffness is demonstrated. These
properties are required in high speed and high precision
motion systems. They are achieved by combining various
control schemes, namely flux feedforward and analog sensing
coil feedback for high bandwidth, Hall probe feedback
to stabilize the drift, and an air gap observer together with
gain scheduling to reduce the remaining stiffness. Using the
presented scheme, the attractive force of the actuator can
be controlled with high precision without the need for a position
or force sensor. Experiments indicate that a linearization
error of 50mN for second-order 200 N force reference
profiles is obtained. This translates into force predictability
of 99.98%. Furthermore, absolute actuator stiffness below
500 N/m at force levels of 100 N is achieved, which is comparable
to more linear Lorentz actuators.

Schlagworte:
Actuators, hysteresis, reluctance motors

Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.