Adaptive robust control method for unmanned mining electric shovel excavation systems based on the Hamilton–Jacobi inequality
Zhengguo HU , Kaiyan LIAN , Xiuhua LONG , Shibin LIN , Xueguan SONG
Front. Mech. Eng. ›› 2025, Vol. 20 ›› Issue (4) : 30
Adaptive robust control method for unmanned mining electric shovel excavation systems based on the Hamilton–Jacobi inequality
The harsh working environment of unmanned mining electric shovels (UMESs) and the considerable inertia changes during the excavation process in the front-end mechanism pose major challenges to excavation trajectory tracking. In this study, an adaptive Hamilton–Jacobi inequality (HJI)-based robust control method for UMES excavation systems with uncertainty was proposed for trajectory tracking control in intelligent mining. First, the excavation system dynamic model was analyzed using the Lagrangian method, and an excavation resistance prediction model and a material quality prediction model were constructed. The optimal excavation trajectory was described. Then, the HJI theorem was used to design an adaptive controller based on the dynamic model of the UMES, and a generalized regression neural network was introduced to fit the interference term in the control object to ensure the convergence of the control system. Subsequently, a Lyapunov function was constructed to demonstrate the stability of the control system to ensure the reliability of the excavation system. Finally, the method proposed in this study was verified under two different working conditions involving a typical material surface and a real material surface. The numerical simulation results demonstrated that the planned position and velocity were effectively tracked in both working conditions. Furthermore, it maintains an improved tracking effect under different uncertain disturbances, thus verifying the feasibility and robustness of the control system designed in this study.
unmanned mining electric shovel / trajectory tracking control / Hamilton–Jacobi inequality / generalized regression neural network / Lyapunov function / uncertain disturbance
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Higher Education Press
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