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Sliding Mode Control of Spacecraft with Actuator Dynamics

Yee-Jin Cheon
Transaction on Control Automation, and Systems Engineering, vol. 4, no. 2, pp.169-175, 2002

Abstract : A sliding mode control of spacecraft attitude tracking with actuator, especially reaction wheel, is presented. The sliding mode controller is derived based on quaternion parameterization for the kinematic equations of motion. The reaction wheel dynamic equations represented by wheel input voltage are presented. The input voltage to wheel is calculated from the sliding mode controller and reaction wheel dynamics. The global asymptotic stability is shown using a Lyapunov analysis. In addition the robustness analysis is performed for nonlinear system with parameter variations and disturbances. It is shown that the controller ensures control objectives for the spacecraft with reaction wheels.

Keyword : sliding mode control, quaternion, reaction wheel, switching function, Lyapunov analysis

 
 
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