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论文编号:ZD1138 论文字数:17639,页数:48
摘要
目前我国的造纸行业正处在发展阶段，省内的造纸企业还是以中小企业居多。由于资金薄弱，技术短缺，他们的中小型造纸机仍在采用多点式的控制方式进行传动，其工作强度大，工作效率低，实时控制差，已经越来越不能适应企业的经济和社会效益。目前大型造纸企业所采用由大型PLC组成的现场总线控制技术的并不适合中小型企业的造纸系统。而近年来组态软件技术的发展为解决中小企业纸机所面临的问题提供了一个很好的途径。
针对目前中小造纸企业现有的纸机设备工作效率低，同步性差，以及中小型企业普遍面临的资金短缺，技术薄弱等问题，本课题提出了构建基于组态软件的节能型纸机传动控制系统的方案。通过利用触摸屏、PLC、变频器和上位机来构建三级控制结构的纸机传动控制系统，并完成系统各个组件之间的接口连接，PLC的端口设计，变频器的设置，组态软件和PLC的编程和调试等工作，构建完整的纸机传动控制系统，最终能通过触摸屏和上位机简单的人机界面完成对系统的传动部分进行的启停、调速等控制，并进行系统监控。该系统能有效的提高纸机系统运行的稳定性和工作效率，人机界面的操作简单易学，能轻易地对纸机系统进行精确地调速，系统变得更加容易监控，稳定的造纸设备可以提高造纸质量，并在一定程度上节约了能源的损耗。
基于组态软件的纸机传动系统无论在工作的效率性，稳定性上还是在系统构建的经济性上都十分贴切目前中小企业的需求。因此，未来它在中小造纸企业会有比较大的发展空间。
关键词：组态软件 纸机传动系统 PLC 触摸屏 变频器
Abstract
In nowadays , the papermaking profession in our country is occupying the development phase, in our province most of the papermaking enterprise are the small and medium-sized enterprise. Because shortage of capital, the weakness in technology, the middle and small scale paper mill was still using the multi-point control mode to carry on the transmission, its working strength is mass, the working efficiency is low, the real-time control difference, which is continually could not adapt to the enterprise''s economy and the social efficiency.
The paper machine equipment existing in the small papermaking enterprise，whoes working efficiency is low in view of present, the synchronism is inefficient , as well as the Small and medium-sized enterprise faces generally fund shortage, technology weak and so on problems, this paper proposed the construction based on the configuration software''s energy conservation paper engine drive control system''s plan. Through using the touchscreen, PLC, the frequency changer and the superior machine constructs the third-level control structure the paper engine drive control system, and completes between the system each module''s connection connection, the PLC port design, frequency changer''s establishment, configuration work and so on software and PLC programming and debugging, constructs the complete paper engine drive control system, can finally completes through the touchscreen and the superior machine simple human-machine interface to system''s transmission part carries on opens stops, controls and so on velocity modulation, and carries on the system monitoring. This system can effective enhance the paper machine systems operation the stability and the working efficiency, the human-machine interface simplicity of operator easy to study, can carry on easily to the paper machine system modulates velocity precisely, the system becomes easier to monitor, the stable papermaking equipment may improve the papermaking quality, and saved the energy loss to a certain extent.
Paper engine drive system based on configuration software can meet the needs to the small and medium-sized enterprise in all about the machine system’s working efficiency, stability and it’s economy. Therefore, there will be a big development opportunities in the future in the small papermaking enterprise.
Key words: configuration software; paper machine’s drive system; PLC; touch screen;
frequency converter
目录
摘要 i
Abstract ii
目录 iv
第一章 绪 论 1
1.1 引言 1
1.2 组态软件和触摸屏的发展和应用 1
1.3 纸机及其传动系统技术现状 2
1.4 课题的提出与本文的主要内容 4
1.5 本章小节 5
第二章 基于组态软件的纸机传动系统的设计功能分析 6
2.1 基于组态软件的纸机传动系统的设计和分析 6
2.1.1 纸机传动系统的控制要求 6
2.1.2 纸机传动系统的简化和构建 7
2.1.3 纸机传动控制系统的结构设计 8
2.2 变频器的选择和应用 9
2.3 PLC的选择和应用 11
2.4 上位机和触摸屏的选择与应用 12
2.5 本章小结 14
第三章 基于组态软件的纸机传动系统的硬件通信设计 15
3.1 纸机传动系统的硬件通信方式以及端口类型 15
3.2 上位机与PLC的硬件接口及通信 16
3.3 触摸屏与PLC的硬件接口设计及通讯 16
3.4 PLC与变频器的接口设计及通讯 17
3.5 本章小结 18
第四章 纸机传动控制系统的编程与设置 20
4.1 组态软件的参数设置 20
4.2 变频器的设置与调试 23
4.3 通过组态软件对触摸屏界面的设计 24
4.4 PLC的编程与调试 29
4.5 本章小节 30
第五章 总结与展望 31
参考文献 32
致 谢 34
附 录 35
