Abstract
This paper investigates the dynamic control of space tether deployment by: 1) optimal tuning of control gains of a simple tension law; 2) a passivity based tension law. The tethered spacecraft system is modelled with a nonlinear 'dumbbell' model. The tuned simple tension control law has the advantage of achieving fast tether deployment while keeping the simplicity of control law design. The passivity based control law has no overshoot of tether length and can reduce maximum in-plane pitch angle significantly. The simulation results demonstrate the efficiency and robustness of the proposed control methods.
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