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Dynamic modeling and adaptive fast nonsingular terminal sliding mode control for satellite with double rotary payloads. (English) Zbl 1374.93074

Summary: A robust attitude control methodology is proposed for satellite system with double rotary payloads. The dynamic model is built by the Newton-Euler method and then the dynamic interconnection between satellite’s main body and payloads is described precisely. A nonlinear disturbance observer is designed for satellite’s main body to estimate disturbance torque acted by motion of payloads. Meanwhile, the adaptive fast nonsingular terminal sliding-mode attitude stabilization controller is proposed for satellite’s main body to quicken convergence speed of state variables. Similarly, the adaptive fast nonsingular terminal sliding-mode attitude maneuver controller is designed for each payload to weaken the disturbance effect of motion of satellite’s main body. Simulation results verify the effectiveness of the proposed method.

MSC:

93B12 Variable structure systems
93C40 Adaptive control/observation systems
93C95 Application models in control theory
93B07 Observability
93A30 Mathematical modelling of systems (MSC2010)
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