A Novel Performance-Constrained Tracking DSC Design for a Class of Time-Delay Unknown Nonlinear Systems with Zero-Initial Controls.

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Bibliographic Details
Title:	A Novel Performance-Constrained Tracking DSC Design for a Class of Time-Delay Unknown Nonlinear Systems with Zero-Initial Controls.
Authors:	Guo, Haili¹ ghlghl2000@126.com, Tian, Yuheng² tianyuheng2004@163.com, Xu, Wenlong² yiibook@163.com, Liu, Hui² 18741273790@163.com, Wang, Ruikai² ruikaiw@163.com
Source:	IAENG International Journal of Computer Science. Oct2026, Vol. 53 Issue 10, p4226-4239. 14p.
Subjects:	Adaptive control systems, Nonlinear systems, Time delay systems, Stability theory
Abstract:	This paper investigates the adaptive tracking control problem for unknown nonlinear systems with time-varying delays. Within the framework integrating dynamic surface control (DSC) and prescribed performance control (PPC), a novel control scheme is developed under the constraint of zero-initial control input. By embedding a zero-initialization regulatory function into the control laws, the proposed scheme addresses two critical practical challenges: accurate filter initialization and the zero-initial control input requirement. It guarantees uniform ultimate boundedness of all closed-loop signals, constrains the tracking error within predefined performance bounds, and enforces the zero-initial condition for the control input. Simulation results for a pendulum system are presented to validate the theoretical derivations.and the zero-initial control input requirement. It guarantees uniform ultimate boundedness of all closed-loop signals, constrains the tracking error within predefined performance bounds, and enforces the zero-initial condition for the control input. Simulation results for a pendulum system are presented to validate the theoretical derivations. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	This paper investigates the adaptive tracking control problem for unknown nonlinear systems with time-varying delays. Within the framework integrating dynamic surface control (DSC) and prescribed performance control (PPC), a novel control scheme is developed under the constraint of zero-initial control input. By embedding a zero-initialization regulatory function into the control laws, the proposed scheme addresses two critical practical challenges: accurate filter initialization and the zero-initial control input requirement. It guarantees uniform ultimate boundedness of all closed-loop signals, constrains the tracking error within predefined performance bounds, and enforces the zero-initial condition for the control input. Simulation results for a pendulum system are presented to validate the theoretical derivations.and the zero-initial control input requirement. It guarantees uniform ultimate boundedness of all closed-loop signals, constrains the tracking error within predefined performance bounds, and enforces the zero-initial condition for the control input. Simulation results for a pendulum system are presented to validate the theoretical derivations. [ABSTRACT FROM AUTHOR]
ISSN:	1819656X