Sensorless Control of EDS Hovering Coil
Electrodynamic Suspension is a well known principle in electromagnetic theory. EDS hovering is prone to undamped oscillations, which limits the feed forward control possibilities of this technique. In this paper, a previously designed cheap actuator, based on this principle, is controlled sensorless...
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Sprache: | eng |
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Zusammenfassung: | Electrodynamic Suspension is a well known principle
in electromagnetic theory. EDS hovering is prone to
undamped oscillations, which limits the feed forward
control possibilities of this technique. In this paper, a
previously designed cheap actuator, based on this principle,
is controlled sensorlessly to realize stable height
control. The relation between the height and the inductance
of the coil is evaluated. A sensorless inductance
measurement technique is developed. PID control of
the inductance is tuned and described in this paper. |
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