Title
Stable neural controller design based on composite adaptation
Abstract
An indirect learning and direct adaptive control scheme based on neural networks-composite adaptive neural control-is proposed for a class of nonlinear systems. With indirect learning, the neural network learns the nonlinear basis functions of the system inverse dynamics by a modified backpropagation learning rule. The basis set spans the locally partitioned vector space of inverse dynamics with direct adaptation when indirect learning is achieved within a prescribed error tolerance. For localization of the state space of inverse dynamics, the hash addressing technique from CMAC is used for selecting only a small subset of the network hidden nodes according to where the input vector lies. As such, the global control performance can be obtained by the cooperation of many local convergence properties. For uniform stability, sliding mode control is introduced when the neural network has not sufficiently learned the plant dynamics. With suitable assumptions on the controlled plant, global stability and tracking error convergence proof can be given. Finally, the proposed control scheme is verified with computer simulation
Year
DOI
Venue
1994
10.1109/ROBOT.1994.351082
ICRA
Keywords
Field
DocType
composite adaptation,global control performance,cmac,neural networks,local convergence properties,control engineering,inverse dynamics,composite adaptive neural control,nonlinear systems,backpropagation,indirect learning,direct adaptive control,convergence,tracking error,adaptive control,nonlinear control systems,sliding mode control,hash addressing technique,digital simulation,stable neural controller design,locally partitioned vector space,direct adaptation,modified backpropagation learning rule,nonlinear basis functions,stability,uniform stability,convergence proof,variable structure systems,neural nets,global stability,vector space,adaptive systems,computer simulation,nonlinear system,state space,local convergence,control systems,neural network
Control theory,Adaptive system,Control engineering,Learning rule,Basis function,Inverse dynamics,Adaptive control,Backpropagation,Artificial neural network,Mathematics,Sliding mode control
Conference
ISSN
ISBN
Citations 
1050-4729
0-8186-5330-2
1
PageRank 
References 
Authors
0.63
2
2
Name
Order
Citations
PageRank
Hyo-gyu Kim141.84
Oh Se-young2275.16