未知擾動下非嚴格反饋系統(tǒng)的自適應優(yōu)化跟蹤控制

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中圖分類號：TP273 文獻標志碼：A DOI：10.12305/j.issn.1001-506X.2025.06.26

Abstract：Anadaptive backstepping-based optimized control strategy is proposed for non-strict feedback systems with unknown disturbances and unmeasurable states. Firstly，a composite observer is constructed， aiming to observe both theunknown states and disturbances of the system.Secondly，a non-quadratic cost functioncontaining the disturbance estimation is introduced ateach stepof the backstepping design，and all the virtual optimal controllers and the final actual optimal controlersare designed，which ensure the system stabilitywhile achieving control optimization.In thedesign process of the optimal backstepping method，only thesingle critic network is introduced，which simplifies the controler design process and reduces the complexity of thecontrol system structure.Finally，the stabilityof the closed-loop system is proved byLyapunov stability analysis and the effectiveness of the proposed method is verified by numerical simulation.

Keywords：unknown disturbance；unmeasurable state；optimized control；non-strict feedback system

0 引言

伴隨著全球能源危機的加劇，最優(yōu)控制受到了廣泛關注[1-4]。（剩余13842字）