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In this study, a flexible conveyance system driven by linear motors and hybrid magnets for magnetic levitation is proposed. For modelling purposes, nonlinear analytic models are derived and extended to 3 axis of movement and controlled with those nonlinear equations. For energy efficiency, each pole is controlled with voltage driving zero power levitation method. Since the system only has displacement...
In this paper a sensorless control method is presented for a matrix converter-fed synchronous reluctance motor. The method includes low speed and standstill operating regions. The fields of application are aerospace actuators where sensorless control augments the reliability of the drive, and robustness towards harsh ambient temperatures. The simulation results show the effectiveness of the presented...
PMSM applications in high-performance control, with or without sensors, involve well self-tuning of the controllers and observers to machine parameters with off/on-line identifications for “plug-in” controllers. This paper proposed self-commissioning methods to automatic identify the PMSM electrical parameters (stator resistance, dq-inductances and PM flux) in sensorless drives, sometimes the rotor...
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