Abstract: Aiming at the nonlinear and time-varying characteristics of freeway traffic system, a fuzzy self-adaptive PID controller is designed and applied to freeway ramp metering in this paper.

摘要：针对高速公路交通系统的非线性、时变特性，设计了一种模糊自适应控制器，并将其应用于高速公路匝道控制系统。

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Then with an industrial furnace as controlled object, fuzzy control rule is obtained and fuzzy self adaptive control is realized by on line identifying fuzzy model.

并以工业电炉为控制对象，通过在线辨识模糊模型获得模糊控制规则，实现了模糊自适应控制。

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Apply fuzzy self-adaptive PID controller to control the DC timing system and design three self-adaptive PID controllers which adjust the PID parameters respectively in real-time way.

利用模糊自适应PID控制器对直流调速系统进行控制，设计了三个自适应模糊控制器分别实时调整PID参数。

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