基于plc的锅炉温度控制系统毕业论文.doc

基于 PLC 的锅炉温度控制系统作者姓名 xxx 专业自动化指导教师姓名 xxx 专业技术职务讲师目录摘要········································································ 1 第一章绪论························································· 3 课题背景及研究目的和意义·············································· 3 国内外研究现状····························································· 3 项目研究内容································································ 4 第二章 PLC 和组态软件基础··································· 5 可编程控制器基础·························································· 5 2. 可编程控制器的产生和应用··········································· 5 2. 可编程控制器的组成和工作原理····································· 5 可编程控制器的分类及特点··········································· 7 组态软件的基础····························································· 8 组态的定义································································ 8 组态王软件的特点······················································· 8 组态王软件仿真的基本方法··········································· 8 第三章 PLC 控制系统的硬件设计······························ 9 PLC 控制系统设计的基本原则和步骤······························· 9 PLC 控制系统设计的基本原则········································ 9 PLC 控制系统设计的一般步骤········································ 9 PLC 程序设计的一般步骤············································ 10 PLC 的选型和硬件配置··············································· 11 PLC 型号的选择························································ 11 S7-200CPU 的选择····················································· 12 EM235 模拟量输入/ 输出模块········································ 12 热电式传感器··························································· 12 可控硅加热装置简介·················································· 12 系统整体设计方案和电气连接图··································· 13 PLC 控制器的设计····················································· 14 控制系统数学模型的建立············································ 14 PID 控制及参数整定·············································