Reduced-order nonrecursive prescribed performance control strategy for nonlinear systems with output constraints
Aiming at the challenging tracking control problem of a class of nonlinear systems with mismatched distur-bances in the case of inherent output constraints,this paper investigates a nonrecursive design framework in the process of prescribed performance control.A reduced-order nonrecursive prescribed performance control scheme is proposed to alleviate the complexity explosion problem in the process of common recursive prescribed performance control.Compared with the common recursive methods,the proposed strategy significantly simplifies the system's controller design process,making it highly suitable for practical engineering applications.The proposed reduced-order nonrecursive control strategy not only realizes the separation of controller design process and stability analysis but also exhibits the notable advantages of a simple controller form and concise control parameter selection guidelines.Finally,a representative numerical simu-lation and the position tracking control experiment of permanent magnet synchronous motor(PMSM)system verify the effectiveness and simplicity of the proposed reduced-order nonrecursive control strategy.
nonrecursive controlprescribed performancemismatched disturbanceoutput constraintnonlinear system
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