A singularity problem for a single gimbal control moment gyros (SGCMGs) system in a Box configuration is analyzed. The Box configuration is affected by some singular states that cannot be escaped by using just a singularity robust inverse approach. In order to avoid this particular singular conditions two alternative steering methods are proposed, based on a real-time change of the Jacobian matrix forcing the CMGs units to exit the singular condition. Numerical simulations are presented in order to evaluate the system performances for a satellite attitude control system during prescribed attitude trajectories tracking maneuvers. The new algorithms are compared to existing steering laws and used with different null-motion methods.

Steering Algorithms for Single Gimbal Control Moment Gyros in Box Configuration / M., Meschini; Curti, Fabio; M., Anania. - STAMPA. - (2011), pp. 1342-1351. ((Intervento presentato al convegno 3rd CEAS (Council of the European Aerospace Societies), Air&Space Conference, 21st AIDAA Congress tenutosi a Venice (Italy) nel 24-28 October 2011.

Steering Algorithms for Single Gimbal Control Moment Gyros in Box Configuration

CURTI, Fabio;
2011

Abstract

A singularity problem for a single gimbal control moment gyros (SGCMGs) system in a Box configuration is analyzed. The Box configuration is affected by some singular states that cannot be escaped by using just a singularity robust inverse approach. In order to avoid this particular singular conditions two alternative steering methods are proposed, based on a real-time change of the Jacobian matrix forcing the CMGs units to exit the singular condition. Numerical simulations are presented in order to evaluate the system performances for a satellite attitude control system during prescribed attitude trajectories tracking maneuvers. The new algorithms are compared to existing steering laws and used with different null-motion methods.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/505611
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