Event-Triggered Tunnel Prescribed Control for Nonlinear Systems

This paper studies an event-triggered Tunnel Prescribed Control (TPC) for uncertain nonlinear systems under any initial condition. A more general Entry Capture Problem (ECP) is introduced, where the tunnel prescribed performance is satisfied after a certain period of system operation, as opposed to...

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Veröffentlicht in:IEEE transactions on fuzzy systems Jg. 32; H. 1; S. 1 - 12
Hauptverfasser: Ji, Ruihang, Ge, Shuzhi Sam
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.01.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Actuators
Communication
Complexity
Complexity theory
Control design
Control systems
Decoding
Event-triggered control
global property
Initial conditions
Nonlinear control
Nonlinear systems
prescribed performance control
Self tuning
Systems operation
Tunnels
ISSN:1063-6706, 1941-0034
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Zusammenfassung:This paper studies an event-triggered Tunnel Prescribed Control (TPC) for uncertain nonlinear systems under any initial condition. A more general Entry Capture Problem (ECP) is introduced, where the tunnel prescribed performance is satisfied after a certain period of system operation, as opposed to starting from the beginning, thereby, making the control design complex yet challenging. In this case, the normally employed prescribed performance control becomes invalid due to the singularity problem arising from the initial condition violation. An Error Self-tuning Function (ESF) is proposed to provide a unified approach for handling different initial conditions, which can be extended to other methods. In order to deal with unknown control directions, an orientation function is employed in lieu of Nussbaum -type function, by which the initial control input is always equal to zero avoiding a large initial value. We then develop an event-triggered mechanism from an encoding-decoding viewpoint, by which only 1-bit string, either 1 or 0, is required for each communication between control and actuator. In this way, such event-triggered mechanism can further reduce communication burden and improve communication security at the same time. The developed event-triggered TPC provides an effective solution for the underlying ECP and exhibits low-complexity level since no additional filters or time derivatives of virtual control inputs are required in the control design. Finally, comparative simulations are conducted to illustrate the above theoretical finding.
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ISSN:1063-6706
1941-0034
DOI:10.1109/TFUZZ.2023.3290934