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Global adaptive output feedback control for a class of nonlinear time-delay systems
1Key Laboratory of Measurement and Control of CSE, Ministry of Education, School of Automation, Southeast University, Nanjing, Jiangsu 210096, China.
ISA Transactions
|August 31, 2013
Summary
This study presents a novel adaptive output feedback controller for nonlinear time-delay systems. The controller simplifies design and ensures global regulation of all system states, enhancing control system stability.
Area of Science:
- Control Theory
- Nonlinear Systems
- Time-Delay Systems
Background:
- Global output feedback control is challenging for nonlinear time-delay systems.
- Existing methods often involve complex designs and repeated derivatives.
Purpose of the Study:
- To develop a simplified and effective global output feedback controller.
- To address nonlinearities with triangular forms and unknown growth rates.
Main Methods:
- A change of coordinates simplifies the system structure.
- A linear-like controller is constructed, avoiding complex derivatives.
- Universal control principles are employed for adaptive controller design.
Main Results:
- An explicit universal-type adaptive output feedback controller is constructed.
- The controller guarantees global regulation of all system states.
- The design procedure is significantly simplified compared to traditional backstepping.
Conclusions:
- The proposed controller offers a robust solution for controlling nonlinear time-delay systems.
- This approach enhances the practicality and applicability of output feedback control.
- The method provides a foundation for further research in adaptive control for complex systems.
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