加热炉温度控制系统设计毕业论文
毕 业 设 计 [论 文]
题 目: 加热炉温度控制系统设计
学 院: 专 业:
姓 名:
学 :
指导老师:
完成时间: 7>2013年05月28 日摘 要
可编程控制器是一种应用很广泛的自动控制装置,它将传统的继电器控制技术,计算机技术,通讯技术融为一体,具有控制力强、操作灵活方便、可靠性高、适宜长期连续工作的特点。
关键词: 电加热炉,S7-200PLC,温度控制系统
AbstractThe programmable controller is a automatic control device which is widely used, it will be the traditional relay control technology, computer technology, communication technology com., has strong control ability, flexible and convenient operation, high reliability, suitable for long-term continuous working characteristics Based on the analysis of the electric heating furnace temperature control system at home and abroad situation, determine the objectives of the design. Mainly through the design of the overall scheme of the system, hardware selection, design, use, software programming and other aspects, and introduces the principle, design and use of each module, the control algorithm used in the program are described in detail. In this design the Siemens S7-200PLC as control core, through the temperature detection transmission unit for real-time detection of the temperature of the heating furnace, by analog expansion module EM235 will detect the signal transmission to PLC, after PID operation and the output control signal, the control signal by controlling the power regulator changing heater, to control the function of the system temperature.
Keywords: electric heating furnace,S7-200PLC,temperature control system
目 录
摘 要.I
Abstract.II
1绪 论1
1.1 系统设计背景1
1.2 温度控制系统的发展状况1
2 设计总体方案及控制算法描述4
2.1系统总体方案4
2.1.1 硬件方案设计4
2.1.2 软件方案设计5
2.2 PID控制算法7
2.2.1 PID算法7
2.2.2 PID参数整定方法8
3 系统硬件设计10
3.1 系统的硬件组成10
3.1.1 系统结构组成10
3.1.2 系统各个组成部分完成的任务
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