【作者】 桂跃武；

【导师】 张兴；

【作者基本信息】 合肥工业大学 ， 控制工程， 2007， 硕士

【摘要】 上世纪九十年代走向实用化的现场总线控制系统，正以迅猛的势头快速发展，是目前世界上最新型的控制系统。现场总线控制系统是目前自动化领域中的一个技术热点，正受到国内外自动化设备制造商与用户越来越强烈的关注。现场总线控制系统的出现，将给自动化领域带来又一次革命，其深度和广度将超过历史的任何一次，从而开创自动化的新纪元。德国西门子公司的PCS7过程控制系统就是一个现场总线控制系统的典范，它以其程序设计简单，通用性强，可靠性高，组态灵活及适应工业环境的特点，在我国现代工业自动化领域发挥着越来越重要的作用。安徽力盈电气有限公司是一家新兴的高科技自动化工程公司，主要从事工业自动化工程的二次设计与生产。其产品己经广泛应用于石油、化工、电力、水利、冶金、机械、建材等多个领域，在工业自动化控制领域具有一定的影响力。本课题是针对在当前建筑材料生产中通常采用传统的控制系统的发展现状，安徽力盈电气有限公司采用先进的现场总线控制技术，应用了世界上技术先进的德国西门子PCS7过程控制系统并结合其著名的组态监控软件WINCC开发的新型化工材料添加剂——纳米碳酸钙现场总线控制系统。本系统实现了对纳米碳酸钙生产的连续自动控制，同时为了实现更高的工艺和精度要求，我们提出了开环控制与闭环控制相合的控制方案，从而使系统实现了开环控制与闭环控制相结合、顺序控制和紧急联锁控制与连续过程控制相结合、本地控制与远距离控制相结合，从而在控制精度上得到了提高，在实时性上也能满足较高的控制要求，保证了纳米碳酸钙产品质量的稳定性和产品生产的可连续性。通过用户厂家一年多的实际运行，整个系统表现出良好的稳定性和灵活的操作性，完全达到系统的预期要求，为工业级纳米碳酸钙的生产增加了新的成功范例。连续自动给料系统以其较高的稳定性，较高的配料精度等诸多优点，使得产量和质量得到很大的提高，同时由于引入了先进的现场总线技术，使系统的结构较传统的系统得到了简化，方便了系统的维护和调试。改变了过去手动配料工作效率差，耗费大量的劳动力的痛苦，大大提高了生产效率，从而得到了显著的经济效益。更多还原

【Abstract】 The Fieldbus control system was put into use in the 90’s last century ,is a rapid momentum of rapid development, is currently the world’s newest control system. The Fieldbus control system is a hot technology in the field of the automation , which is being paid more and more attention by users and automatic equipment manufacturer . The emergence of the Fieldbus control system will bring another revolution in the field of automation, the depth and breadth will be over any time of history, thus creating a new era of automation. The German company Siemens PCS7 process control system is a fieldbus control system model, which its procedures designed to be simple in view of high reliability, configuration flexibility and adaptability of the industrial environment and the characteristics of modern China in the field of industrial automation is playing an increasingly important role.The Anhui Liying Electric Company is an emerging high-tech automation engineering company, primarily engaged in industrial automation engineering design of the secondary and production. Its products has been widely used in oil, petrochemicals, power, water, metallurgy, machinery, building materials, and other fields. In the field of industrial automation control has certain influence.This topic is for the status which the current in production of chemical materials commonly used the traditional control system . Anhui Liying Electric Company adopted advanced fieldbus control syetem of the world’s advanced technology—Germany’s Siemens PCS7 process control system combined with its famous configuration monitoring software development WTNCC ,designed the new additive materials - nano calcium carbonate Fieldbus control system. This system realizes the production of nano calcium carbonate continuous control, in order to achieve higher precision and technology, we have proposed open-loop control and close control consistency control program, thus allowing the system to achieve the open-loop and closed-loop control of combining control and sequence control and emergency control and continuous chain integrating process control, local control and remote control combination, thereby controlling precision has been improved, the real time can also meet the higher control requirements, ensuring product quality nano calcium carbonate stability and high reliability products.More than a year of actual operation , the entire system showed good stability and flexible operational, the system fully already met expectations of the customer ,and to the industrial production of nano calcium carbonate added a new success story. Continuous automatic feeding system with its high stability, high accuracy, and many other advantages of ingredients, making the yield and quality greatly improved, along with the introduction of advanced fieldbus technology, allowing the system to the more traditional structure of the system has been simplified to facilitate the maintenance of the system and debug. Change the previous manual batching poor efficiency, a significant amount of labor pain, greatly improving production efficiency, resulting in significant economic benefits.更多还原