GA-BASED ADAPTIVE NEURAL NETWORK CONTROLLERS FOR NONLINEAR SYSTEMS

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题名:	GA-BASED ADAPTIVE NEURAL NETWORK CONTROLLERS FOR NONLINEAR SYSTEMS
作者:	Chen,CW;Chen,PC
贡献者:	土木工程學系
关键词:	FEEDFORWARD NETWORKS;FUZZY CONTROL;TIME;APPROXIMATION;BACKPROPAGATION;STABILITY;ALGORITHM;DISCRETE;DESIGN
日期:	2010
上传时间:	2012-03-27 16:16:52 (UTC+8)
出版者:	國立中央大學
摘要:	In this study, we propose a method of stability analysis for a GA-Based reference ANNC which is capable of handling these types of problems in a nonlinear system. First of all, radial basis function networks are utilized to well approximate an uncertain and nonlinear plant, for the tracking of a reference trajectory. Next, the initial values of the consequent parameter vector are decided via a genetic algorithm (GA), after a modified adaptive law is derived based on Lyapunov stability theory for the purpose of controlling the nonlinear system which is used for tracking a user-defined reference model. The requirement of the Kalman-Yacubovich lemma is fulfilled. A boundary-layer function is introduced into these updating laws to cover parameter and modeling errors, and to guarantee that the state errors converge within a specified error bound. After this, an adaptive neural network controller (ANNC) is derived to simultaneously stabilize and control the system. Finally, a numerical simulation is carried out. The simulation results show the rapidity and efficiency with which the control methodology can control nonlinear systems.
關聯:	INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL
显示于类别:	[土木工程學系 ] 期刊論文

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