Title
Adaptive Neural Network-Based Event-Triggered Control of Single-Input Single-Output Nonlinear Discrete-Time Systems
Abstract
This paper presents a novel adaptive neural network (NN) control of single-input and single-output uncertain nonlinear discrete-time systems under event sampled NN inputs. In this control scheme, the feedback signals are transmitted, and the NN weights are tuned in an aperiodic manner at the event sampled instants. After reviewing the NN approximation property with event sampled inputs, an adaptive state estimator (SE), consisting of linearly parameterized NNs, is utilized to approximate the unknown system dynamics in an event sampled context. The SE is viewed as a model and its approximated dynamics and the state vector, during any two events, are utilized for the event-triggered controller design. An adaptive event-trigger condition is derived by using both the estimated NN weights and a dead-zone operator to determine the event sampling instants. This condition both facilitates the NN approximation and reduces the transmission of feedback signals. The ultimate boundedness of both the NN weight estimation error and the system state vector is demonstrated through the Lyapunov approach. As expected, during an initial online learning phase, events are observed more frequently. Over time with the convergence of the NN weights, the inter-event times increase, thereby lowering the number of triggered events. These claims are illustrated through the simulation results.
Year
DOI
Venue
2016
10.1109/TNNLS.2015.2472290
IEEE transactions on neural networks and learning systems
Keywords
Field
DocType
Adaptive control,event-triggered control (ETC),function approximation,neural network (NN) control,neural network (NN) control.
State vector,Nonlinear system,Function approximation,Computer science,Control theory,Adaptive system,Artificial intelligence,System dynamics,Discrete time and continuous time,Adaptive control,Artificial neural network,Machine learning
Journal
Volume
Issue
ISSN
27
1
2162-237X
Citations 
PageRank 
References 
26
0.82
12
Authors
3
Name
Order
Citations
PageRank
Avimanyu Sahoo115510.66
Hao Xu221414.63
Sarangapani Jagannathan3113694.89