In this paper, a novel approach with guaranteed performance is presented for attitude tracking control of the reusable launch vehicle in presence of actuator saturation, parameter uncertainties and external disturbances. The prescribed performance function is introduced to allow the attitude tracking errors evolve in the prescribed envelopes, so as to ensure the transient and steady state behaviors of the system. The high-gain extended state observer is designed to estimate the system uncertainties and external disturbances. Then, with the backstepping control technology, a low-complexity output feedback tracking control method is proposed to achieve disturbance compensation and guarantee the convergence of the tracking errors. The difference of the proposed method from other existing works is that the complicated approximating technologies such as neural networks are not employed, which reduces the workload of parameter tuning. In addition, the method proposed in this paper eliminates the tedious recursive time derivatives of the virtual control signals in each step. Therefore, the problem of "explosion of terms" can be avoided. Lyapunov stability analysis shows that the proposed method can guarantee the expected convergence of the output tracking errors and the boundness of other closed-loop system signals. Simulation results verify the effectiveness and feasibility of the control method.
LUO Shibin
,
WU Xia
,
WEI Caisheng
. A novel attitude tracking control with guaranteed performance for reusable launch vehicle[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021
, 42(11)
: 524660
-524660
.
DOI: 10.7527/S1000-6893.2020.24660
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