The investigated linear machine works as a mechanical oscillator using springs to reduce the overall power consumption and two electromagnets having their twin circular coils (which surround a ring-shape permanent magnet) connected in series. The actuator can be controlled with a single phase inverter. In this paper sensorless closed loop position control based on a FEM assisted estimator that uses two extra coils placed near the main coils is presented. Experiments were performed, using a cascaded architecture control approach having two combined sliding mode (SM) plus PI controllers, to validate the position sensorless control.
Position sensorless control of a linear interior permanent magnet oscillatory machine, with experiments
MARIGNETTI, Fabrizio;
2010-01-01
Abstract
The investigated linear machine works as a mechanical oscillator using springs to reduce the overall power consumption and two electromagnets having their twin circular coils (which surround a ring-shape permanent magnet) connected in series. The actuator can be controlled with a single phase inverter. In this paper sensorless closed loop position control based on a FEM assisted estimator that uses two extra coils placed near the main coils is presented. Experiments were performed, using a cascaded architecture control approach having two combined sliding mode (SM) plus PI controllers, to validate the position sensorless control.File in questo prodotto:
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