连铸机自动流程控制系统的设计开发

Design and Development of Automatic Process Control System for the Continuous Casting Machine

为满足生产工艺要求,自行设计开发了连铸机全自动流程控制系统。一级控制系统由西门子系列PLC控制器组成,通讯网络采用高速光纤以太网,二级计算机服务器为1台HP服务器。采用模块化、嵌套型编程方法,提高控制系统的逻辑运算及处理能力,实现逻辑控制的稳定性;采用铸坯测长及定尺检测双冗余系统,在提高铸坯定尺切割精度的同时降低系统的故障率;虚拟测量模型的使用,降低对现场检测设备的依赖,提高了二级配水系统的精度,保障了铸坯质量的稳定。

In order to meet the requirements of the production process, the automatic process control of all functions were designed and implemented. The level 1 control system was composed of Siemens series PLC controller, the communication network is high- speed optical fiber Ethemet. The level 2 server is a set of HP server computer. By using the programming methods of modular and nested, the control system logic operation and processing ability was improved, the stability of logic control was realized. The adoption of slab length measurement and length detection double redundancy system can both improve the slab cutting accuracy and reduce the failure rate of the system. The use of virtual measurement model can reduce the dependence on the field detector, enhance the accuracy of level 2 water distribution system. And it can held to guarantee the stability of the slab quality.