An integrated architecture of adaptive neural network control for dynamic systems

Conference · Fri Jul 01 04:00:00 EDT 1994

OSTI ID:10164183

Ke, Liu; Tokar, R; Mcvey, B

In this study, an integrated neural network control architecture for nonlinear dynamic systems is presented. Most of the recent emphasis in the neural network control field has no error feedback as the control input which rises the adaptation problem. The integrated architecture in this paper combines feed forward control and error feedback adaptive control using neural networks. The paper reveals the different internal functionality of these two kinds of neural network controllers for certain input styles, e.g., state feedback and error feedback. Feed forward neural network controllers with state feedback establish fixed control mappings which can not adapt when model uncertainties present. With error feedbacks, neural network controllers learn the slopes or the gains respecting to the error feedbacks, which are error driven adaptive control systems. The results demonstrate that the two kinds of control scheme can be combined to realize their individual advantages. Testing with disturbances added to the plant shows good tracking and adaptation.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10164183
• Report Number(s): LA-UR--94-1705; CONF-941190--1; ON: DE94014813
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990200
COMPUTERIZED CONTROL SYSTEMS
FEEDBACK
MATHEMATICS AND COMPUTERS
NEURAL NETWORKS
NONLINEAR PROBLEMS