Authors:
Khalid Abidi
1
and
Hang Jian Soo
2
Affiliations:
1
Electrical Power Engineering Program, Newcastle University in Singapore, 567739 and Singapore
;
2
National University of Singapore, 119260 and Singapore
Keyword(s):
Adaptive Control, Discrete-time Systems, Time-delay Systems.
Related
Ontology
Subjects/Areas/Topics:
Adaptive Signal Processing and Control
;
Computer and Microprocessor-Based Control
;
Informatics in Control, Automation and Robotics
;
Real-Time Systems Control
;
Signal Processing, Sensors, Systems Modeling and Control
;
System Modeling
Abstract:
This paper proposes a discrete-time adaptive regulation approach for scalar linear time-invariant systems with unknown, constant input time delay that has a known upper-bound, without explicitly estimating the time delay. To cope with the unknown time delay, a state substitution is made that results in a delay free system that simplifies the control law design. In addition, the proposed approach does not require that the system have stable open-loop zeros. A stability analysis shows that the proposed regulator drives the system state to zero asymptotically and simulation results are shown to verify the approach.