交联电缆生产线智能监控系统

发布时间：2018-03-05 17:32

本文选题：交联电缆　切入点：PID控制　出处：《东华大学》2017年硕士论文　论文类型：学位论文

【摘要】：我国是电缆生产制造大国,目前绝大部分的高压电缆都是采用交联聚乙烯绝缘电缆。截止到2016年国家电网公司发布的最新信息表明,我国对6~500kV电缆线需求量大约90万km。面对日益增长的电力行业的发展和对交联聚乙烯绝缘电缆的巨大需求,工业化批量生产也达到了繁盛时期,但我国并是不电缆制造强国,高端特种电缆制造不出来、低端产品质量水平不高、消耗大。造成这一现象的主要原因之一是因为在电缆生产中只实现了底层自动化控制,但底层生产数据没有收集与保存,更无法实现上层的集中管理与监控,因此无法在线监控生产质量,只能依靠生产后抽样、检验。近年来随着网络技术发展的日新月异及监控系统在企业生产和管理过程中的重要地位,建立一套交联电缆生产线智能监控系统,对企业交联电缆生产过程进行实时、连续的监测,不仅可以尽早发现问题并及时处理解决,而且这对交联电缆生产的安全稳定和提高生产效率都有着极其重要的意义。本文开展的主要工作包括:(1)交联电缆生产过程包括拉丝、绞丝、绝缘、屏蔽、成缆、护套等多道工序,本文选取其中较为重要、复杂的绝缘工序作为研究对象,针对其交联管设备温度控制问题展开研究,分析了不同加热区域的温度变化的特性,建立了温度控制对象的数学模型。(2)提出了基于模糊自整定PID的交联温度控制方法,并采用前述工作中建立的温度控制对象数学模型对所提出方法进行了仿真验证,实验结果显示所提方法比现场采用的经典PID控制方法更为优越。(3)根据工业现场温度控制设备技术要求,将所提出的基于模糊自整定PID的交联温度控制方法进行PLC编程实现,为应用实践打下基础。(4)运用组态王开发监控系统软件对交联电缆生产过程进行了HMI设计,并对交联电缆生产过程监控系统进行了运行与测试,达到了预期的良好效果。
[Abstract]:China is a large country in cable production and manufacture. At present, most of the high-voltage cables use XLPE insulated cables. As of 2016, the latest information released by the State Grid Corporation shows that. The demand for 610kV cable lines in China is about 900,000 kms.In the face of the increasing development of the power industry and the huge demand for XLPE insulated cables, the industrial mass production has also reached a prosperous period, but China is also a powerful country in the manufacture of non-cable cables. High-end special cable can not be manufactured, the quality of low-end products is not high, and the consumption is large. One of the main reasons for this phenomenon is that only the automation control of the bottom layer is realized in cable production, but the bottom production data are not collected and preserved. It is also impossible to realize centralized management and monitoring in the upper layer, so it is impossible to monitor the quality of production online, and can only rely on sampling after production. In recent years, with the rapid development of network technology and the important position of monitoring system in the process of production and management of enterprises, an intelligent monitoring system for cross-linking cable production line is established to carry out real-time production of cross-linked cables in enterprises. Continuous monitoring can not only detect problems as early as possible and solve them in a timely manner. And this is of great significance to the safety and stability of the production of cross-linked cables and to the improvement of production efficiency. The main work carried out in this paper includes drawing, twisting, insulation, shielding and cable formation of cross-linked cables. In this paper, the more important and complex insulation process is selected as the research object, and the temperature control problem of the cross-linking pipe equipment is studied, and the characteristics of temperature change in different heating regions are analyzed. The mathematical model of temperature control object is established. (2) A cross-linking temperature control method based on fuzzy self-tuning PID is proposed, and the method is simulated by using the mathematical model of temperature control object established in the previous work. The experimental results show that the proposed method is superior to the classical PID control method used in the field. According to the technical requirements of the industrial field temperature control equipment, the proposed cross-linking temperature control method based on fuzzy self-tuning PID is implemented by PLC programming. In order to lay the foundation for the practice, the author uses Kingview to develop the monitoring system software to design the HMI for the production process of the cross-linked cable, and runs and tests the monitoring system of the production process of the cross-linked cable, and achieves the expected good effect.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM247;TP277

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