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Adaptive Backstepping Robust Control of Nonlinear Spray Boom System

Shujiang Li and Wei Wang
School of Information Science and Engineering, Shenyang University of Technology, Shenyang, China
Abstract—In this paper, a two-asymmetric hydraulic cylinder electro-hydraulic servo system model is established for the spray boom. Because of spray boom vibration and tilt ,which are caused by boom sprayer during its walking, and hydraulic cylinder parameter drift due to environmental changes, an adaptive backstepping control algorithm with an integral-type Lyapunov function is designed to ensure the balance of the boom and a certain height with the ground. Moreover,a higher performance nature of the proposed nonlinear adaptive robust control approach was presented in comparison to the proposed control without adaptation laws. A simulation results showed that the nonlinear algorithm has an excellent performance for the specified tracking task and strong robustness.
Index Terms—spray boom, electro-hydraulic servo system, adaptive backstepping, uncertain parameters

Cite: Shujiang Li and Wei Wang, "Adaptive Backstepping Robust Control of Nonlinear Spray Boom System," Journal of Advanced Agricultural Technologies, Vol. 6, No. 4, pp. 246-252, September 2019. Doi: 10.18178/joaat.6.4.246-252
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