题目：电阻炉温度控制系统设计
电阻炉温度控制系统设计
摘要
随着科学技术的飞速发展，控制理论不断丰富和完善，控制技术也在向智能化、开放性、高可靠性的方向发展。目前常用的控制方式有智能化仪表、PLC、DCS，它们可组成各种控制系统以满足不同的控制要求。其功能越来越强大、性能也越来越完善，并具有控制精度高、抗干扰能力强、防爆性强等特点。
本文研究的是电阻炉的温度控制系统，由于电阻炉在生产和生活中的应用比较广泛，所以电阻炉的温度控制就显得尤为重要了。建立一个控制系统首先要针对控制对象进行研究，本设计的研究对象是实验室现有的管式电阻炉，因此本文对其进行了对象性能测试。然后针对电阻炉的特点，提出了利用数字调节器、固态继电器等器件组成温度控制系统，通过调节参数实现对电阻炉温度的控制。这种方法经济、简单、易操作，控制精度高。最主要的是：学会了利用实验室现有的设备去掌握设计一个控制系统，更深刻的理解设计控制系统的思想，为以后的学习、工作打下了坚实的基础。
关键词：电阻炉；对象特性测试；控制系统；PWM；调节器
Resistance furnace temperature control system
Abstract
Along with science's and technology's swift development, the control theory is unceasingly rich and is perfect, the control technology also to the intellectualization, openness, the redundant reliable direction develops. At prent the commonly ud control mode has the intellectualized measuring appliance, PLC, DCS, they may compo each kind of control system to satisfy the technique of production the request. Its function is getting more and more formidable, the performance to be getting more and more perfect, and has the control precision to be high, antijamming ability is strong,
What the explosion-proof strong and so on characteristic this article studies is resistance furnace's temperature control system, becau resistance furnace in produces and in the life application is quite widespread, therefore resistance furnace's temperature control appeared especially important, established a control system first to aim at the controlled member to conduct the rearch. This design's object of study is the laboratory existing tubular resistance furnace, therefore this article has carried on the object performance test to it. Then in view of resistance furnace's characteristic, propod u component composition temperature control systems and so on digit regulator, solid state relay, realize through the adjustment parameter to the resistance furnace temperature control. This method economical, simple, easy to operate, the control precision is high. What is most main: G
rasps using the laboratory existing equipment designs the work which a control system , the more profound understanding design control system's thought that for the later study, the work has built the solid foundation.
Key word: resistance furnace；characteristics of the test object；control system；PWM；regulator
目录
摘要 ......................................................................................................................................... I Abstract ...................................................................................................................................... II 目录 .......................................................................................................................................... I II 第一章引言 (1)
1.1电阻炉的概述 (1)
1.2电阻炉温度控制系统的应用与发展 (2)
第二章电阻炉的温度控制系统设计概述 (4)
2.1 总体方案设计 (4)
2.2 设计要求 (4)
2.3 设计原理 (4)
第三章电阻炉温度特性的测试、记录及分析 (6)
3.1 电阻炉温度特性测试 (6)
3.1.1 对象特性测试中所用仪表 (6)
3.1.2 对象特性测试原理 (6)
3.1.3 进行温度特性曲线测试的仪器仪表的接线图 (6)
3.2 温度特性曲线的记录与分析 (8)
3.2.1 温度特性曲线的记录 (8)
3.2.2 温度特性曲线试验结果的数据处理的方法 (9)
3.2.3 温度特性曲线数据处理 (14)
第四章电阻炉温度控制系统的设计 (17)
4.1 电阻炉温度控制系统的实现过程 (17)
4.1.1 电阻炉温度控制系统的系统方框图及调节过程 (17)
4.1.2 仪器仪表介绍 (17)
第五章电阻炉温度控制系统的参数整定及系统调试 (31)
5.1 温度控制系统的实现线路 (31)
5.1.1 系统的连线框图 (31)
5.1.2 系统的连接线路及自动控制过程 (31)
5.2 PID调节器及其参数的整定 (31)
5.2.1 P、I、D各运算规律的作用 (31)
5.2.2 PID参数的整定方法 (35)
5.2.3 系统的PID整定结果及分析 (38)
总结 (40)
参考文献 (42)
附录A 系统接线端子图 (44)
附录B PWM电路原理图 (45)
附录C PWM程序 (46)
致谢 (52)
