Assuming that only stator currents and voltages are available for feedback, a nonlinear output feedback adaptive speed tracking control strategy is proposed for a permanent magnet step motor with unknown load torque. It relies on three new theoretical results: the "s-alignment" and "c-alignment" procedures, in which the motor is forced to reach certain known equilibrium points, and an output feedback controller which guarantees uniform asymptotic speed tracking for every initial condition belonging to an explicitly computed domain of attraction. Global exponential convergence is achieved in the case of known load torque. Numerical simulation results show the effectiveness of the proposed solution.

Tomei, P., Verrelli, C.m. (2005). Nonlinear adaptive speed tracking control for sensorless permanent magnet step motors. In 44th IEEE Conference on decision and control, and the European control conference, CDC-ECC '05 (pp.6806-6811). New York : IEEE [10.1109/CDC.2005.1583256].

Nonlinear adaptive speed tracking control for sensorless permanent magnet step motors

TOMEI, PATRIZIO;VERRELLI, CRISTIANO MARIA
2005-01-01

Abstract

Assuming that only stator currents and voltages are available for feedback, a nonlinear output feedback adaptive speed tracking control strategy is proposed for a permanent magnet step motor with unknown load torque. It relies on three new theoretical results: the "s-alignment" and "c-alignment" procedures, in which the motor is forced to reach certain known equilibrium points, and an output feedback controller which guarantees uniform asymptotic speed tracking for every initial condition belonging to an explicitly computed domain of attraction. Global exponential convergence is achieved in the case of known load torque. Numerical simulation results show the effectiveness of the proposed solution.
44th IEEE Conference on decision and control, and the European control conference, CDC-ECC '05
Seville, SPAIN
DEC 12-15, 2005
IEEE Control Syst Soc, European Union Control Assoc, IFAC, INFORMS, SIAM, SICE, Honeywell, MathWorks
Rilevanza internazionale
contributo
2005
Settore ING-INF/04 - AUTOMATICA
English
Adaptive control systems; Feedback control; Nonlinear control systems; Permanent magnets; Sensors; Stepping motors; Tracking (position); Adaptive speed tracking control; Asymptotic speed tracking; Nonlinear output feedback; Permanent magnet step motors; Speed control
Intervento a convegno
Tomei, P., Verrelli, C.m. (2005). Nonlinear adaptive speed tracking control for sensorless permanent magnet step motors. In 44th IEEE Conference on decision and control, and the European control conference, CDC-ECC '05 (pp.6806-6811). New York : IEEE [10.1109/CDC.2005.1583256].
Tomei, P; Verrelli, Cm
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/37393
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