Abstract
Fault tolerant attitude control is considered in this paper. The paper proposes an anti-unwinding attitude control method to ensure the attitude stabilization even in the presence of actuator fault. In the control design, an anti-unwinding fast terminal sliding surface is selected and control law is formulated in second-order sliding mode. In end, simulations are conducted in the presence of external environment disturbances, mass inertia uncertainty, and actuator faults. Results show that the proposed control can overcome the effect of actuator fault, external environment disturbance, and mass inertia uncertainty and ensure a fault tolerant attitude stabilization with high convergence speed and stabilization accuracy.
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