1、摘要 I 摘要 板带材厚度精度是板带材产品的两大质量指标之一。 厚度自动控制简称 为 AGC(Automatic Gauge Control)，是现代化冷轧薄板生产中实现高精度轧 制的重要手段。目前随着轧制理论、控制理论和人工智能理论的发展，以及 他们在轧制工程中的应用， 使得板带产品的厚度精度与板形指标有了很大程 度的提高。然而，对单机架可逆式冷带轧机采用专门的控制技术，用以实现 对板带材的高精度控制，仍是板厚控制领域研究的热点问题之一。 本文在收集和消化大量国内外相关文献的基础上， 对自动厚度控制的基 本理论以及轧机的几种AGC控制方式进行了研究，为今后研究更高精度的 轧机控制系统提供理论
2、依据。根据液压AGC系统的构成，详细推导了液压 轧机负载动态数学模型，建立了单机架可逆冷带轧机液压AGC位置控制系 统的数学模型。在得出液压AGC系统数学模型的基础上，应用单神经元自 适应PID算法对控制器进行了设计。 最后，通过Matlab软件，对所建模型进行了仿真分析，证明这种方法具 有响应较快，超调量小等优点，并且系统的鲁棒性好，达到了设计要求。 关键词：关键词：液压AGC；位置控制系统；单神经元自适应PID；仿真 II Abstract The accuracy of strip gauge is one of the two key quality targets in strip
3、production. Automatic Gauge Control is called AGC for short. Meanwhile,its a important means to achieve the high accuracy in modem tandem cole rolling.At present,huge advancements have been derived with the development of rolling theory,control theory and artificial intelligence theory and with thei
4、r application in the rolling process.However,it is still one of researching hotspot problem in strip gauge control field that single stand invertible strip mill adopts special control technology and achieves high level control accuracy. In this paper, basic theory of automatic guage control and seve
5、ral AGC control method are studide and analyzed on the basis of collecting and digesting related literature at home and abroad.It provides the way to the higher accuracy research an provides the theory references.Based on the structure of the hydraulic AGC system,dynamic mathematical model of hydrau
6、lic mills are deduced and founded in detail.And then designd the controller by using the single neuron adaptive PID algorithm. At last, the model are simulated and analyzed by using Matlab software.The improved system is proved that it has many advantages.For example,fast response,small overshoot,better robust performance and so on. Keywords:hydraulic AGC; position control system; single neuron adaptive PID ; simulation 第 1 章 绪论 1 第 1 章 绪论 厚度是板带钢最主要的尺寸之一，随着技术的进步，厚度自动控制已成 为现代化板带钢生产中不可缺少的重要组成部分。
