Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14151
Title: Adaptive neural network control of discrete-time nonlinear systems
Authors: ZHANG JIN
Keywords: adaptive control, neural networks, discrete-time systems, SISO systems, MIMO systems, SGUUB
Issue Date: 24-Aug-2004
Source: ZHANG JIN (2004-08-24). Adaptive neural network control of discrete-time nonlinear systems. ScholarBank@NUS Repository.
Abstract: In this thesis, adaptive neural network control schemes are investigated for five classes of discrete-time nonlinear systems in affine/non-affine form. The systems studied include single-input single-output nonlinear systems, multi-input multi-output nonlinear systems. For affine systems, the existence of the desired feedback controls is proved. For non-affine systems, by using implicit function theorem, the existence of the implicit desired feedback controls is also proved. Single layer neural networks, such as radial basis function neural networks, high order neural networks, and multi layer neural networks are used as the emulators for the desired feedback controls. State feedback, output feedback, backstepping design are used respectively in developing the stable adaptive controls. By using Lyapunov method, semi globally uniformly ultimate boundedness stability is proved for each kind of systems. All the closed loop signals are guaranteed to be bounded. Simulation results, including numerical simulation for two practical affine/non-affine continuous stirred tank reactors systems, show the effectiveness of the proposed control schemes.
URI: http://scholarbank.nus.edu.sg/handle/10635/14151
Appears in Collections:Ph.D Theses (Open)

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