摘要
PLC作为一种可编程逻辑控制器,被广泛运用于工业控制领域,成为现代工控系统的核心单元。目前国内PLC市场长期被国外产品占据,企业工业控制系统的数据安全性和操作性存在极大危险性。随着工业4.0与中国智造的发展,工业化和信息化发展深度融合政策的提出,国产PLC依据本土优势与技术提升,迅速发展,正逐步实现替代国外产品,为我国工业工控安全和稳定运行提供自主保障。基于此,针对哈拉沟选煤厂控制系统面临的难题,对哈拉沟选煤厂末煤3控制系统进行改造,与AB控制系统并行测试运行,实现其工控可靠性、实时性以及安全性目的,避免因PLC控制系统限制成为企业发展过程中的“卡脖子”技术瓶颈,同时实现企业向工业智能控制转变,完成技术革新。测试结果表明,两种控制系统的CPU之间通讯、设备单控、多设备系统联动闭锁控制均稳定运行,多设备系统联动控制配合哈拉沟选煤厂整体生产系统正常运行5个月,满足生产需求。同时,通过国产安全可信PLC控制系统与AB控制系统兼容性测试,进行数据交互,满足选煤厂日常监控需求,且运行稳定。此外,国产安全可信PLC的良好运行,实现了工业控制系统自主国产化,保障了企业生产运行和工业信息安全。
PLC as a programmable logic controller, is widely used in the field of industrial control, becoming the core unit of modern industrial control systems. At present, the domestic PLC market has long been occupied by foreign products, and the data security and operability of the enterprise industrial control system are extremely dangerous. With the development of industry 4.0 and China’s intelligent manufacturing, industrialization and information development depth integration policy, domestic PLC based on local advantages and technological upgrading, rapid development, is gradually replacing foreign products, for China’s industrial control safety and stable operation to provide independent protection. Based on this, in view of the problems faced by the control system of Halagou Coal Preparation Plant, the control system of the fine coal 3 of Halagou Coal Preparation Plant is reformed, and the test operation is carried out in parallel with the AB control system to realize its industrial control reliability, real-time performance and safety. The purpose is to avoid the technical bottleneck of the’ neck’ in the development process of the enterprise due to the limitation of the PLC control system, and to realize the transformation of the enterprise to industrial intelligent control and complete technical innovation. The test results show that the communication between the CPU of the two control systems, the single control of the equipment, and the linkage locking control of the multi-equipment system all operate stably. The linkage control of the multi-equipment system cooperates with the overall production system of Halagou Coal Preparation Plant to operate normally for 5 months to meet the production requirements. At the same time, through the compatibility test of the domestic safe and credible PLC control system and AB control system, data interaction is carried out to meet the daily monitoring needs of the coal preparation plant, and the operation is stable. In addition, the good operation of domestic safe
作者
赵月川
任雷平
胡玉玺
张漠鑫
张勇
ZHAO Yuechuan;REN Leiping;HU Yuxi;ZHANG Moxin;ZHANG Yong(Information Technology Co.,Ltd.,China Coal Technology and Engineering Group,Xi’an 710054,China;School of Materials Science and Engineering,Anhui University of Science and Technology,Anhui Huainan 232001,China)
出处
《自动化与仪器仪表》
2023年第10期269-272,276,共5页
Automation & Instrumentation
关键词
国产安全可信PLC
信息安全
并行运行
选煤厂自动化控制
domestic safe and reliable PLC
information security
parallel operation
automation control of coal preparation plant
