SMART is a three-axis stabilized microsatellite aimed mainly at remote sensing applications in sun-synchronous orbits. This paper investigates the possibility of using only three magnetic actuators to operate the microsatellite attitude control within the requested accuracy (nadir pointing within 0.1°). Microsatellite volume constraints impose the use of magnetic actuators of small size. Considering also electric power constraints, this leads to the necessity of using magnetic-core wound solenoids, which do not guarantee the requested control accuracy due to magnetic moment uncertainty. This problem can be solved by the use of a non-linear control technique based on Pulse Width Modulation. Numerical results show that the requested control accuracy can be guaranteed

SmArT PWM Attitude Control by means of Magnetic Actuators / Pastena, M.; Grassi, Michele. - STAMPA. - Science and Technology series, vol. 105:(2001), pp. 1-8. (Intervento presentato al convegno 52nd International Astronautical Congress tenutosi a Tolosa nel 1-6 Ottobre 2001).

SmArT PWM Attitude Control by means of Magnetic Actuators

GRASSI, MICHELE
2001

Abstract

SMART is a three-axis stabilized microsatellite aimed mainly at remote sensing applications in sun-synchronous orbits. This paper investigates the possibility of using only three magnetic actuators to operate the microsatellite attitude control within the requested accuracy (nadir pointing within 0.1°). Microsatellite volume constraints impose the use of magnetic actuators of small size. Considering also electric power constraints, this leads to the necessity of using magnetic-core wound solenoids, which do not guarantee the requested control accuracy due to magnetic moment uncertainty. This problem can be solved by the use of a non-linear control technique based on Pulse Width Modulation. Numerical results show that the requested control accuracy can be guaranteed
2001
SmArT PWM Attitude Control by means of Magnetic Actuators / Pastena, M.; Grassi, Michele. - STAMPA. - Science and Technology series, vol. 105:(2001), pp. 1-8. (Intervento presentato al convegno 52nd International Astronautical Congress tenutosi a Tolosa nel 1-6 Ottobre 2001).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/186254
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