淡江大學機構典藏:Item 987654321/60805
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    题名: Fuzzy linear pulse transfer function based sliding-mode control for nonlinear discrete-time systems
    作者: 黃志良
    贡献者: 淡江大學電機工程學系
    关键词: Fuzzy control;Sliding mode control;Noise measurement;Pulse measurements;Approximation error;Measurement uncertainty;Fuzzy systems;Nonlinear dynamical systems;Control systems;System performance
    日期: 2002-08
    上传时间: 2011-10-15 00:54:30 (UTC+8)
    摘要: In this paper, a nonlinear discrete-time system in the presence of input disturbance and measurement noise is approximated by N subsystems described by the linear pulse-transfer functions. Although the input disturbance and the measurement noise are unknown, they are modeled as known pulse-transfer functions. The approximation error between the nonlinear discrete-time system and the fuzzy linear pulse-transfer function system is represented by the linear time-invariant dynamic system in every subsystem, whose degree can be larger than that of the corresponding subsystem. Besides the input disturbance and the measurement noise, uncertainties are caused by the approximation error of the fuzzy-model and the interconnected dynamics resulting from the other subsystems. Owing to the presence of input disturbance, measurement noise, or uncertainties, a disadvantageous response occurs. Based on Lyapunov redesign, the switching control in every subsystem is designed to reinforce the system performance. Due to the time-invariant feature for a constant reference input, the operating point can approach the sliding surface in the manner of finite-time steps. The stability of the overall system is verified by Lyapunov stability theory.
    關聯: IEEE Transactions on Fuzzy Systems 10(2), pp.187-197
    DOI: 10.1109/91.995120
    显示于类别:[電機工程學系暨研究所] 期刊論文

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