基于以太网的水电站卷扬式启闭机控制系统的设计

Design of winch hoist control systems for hydropower stations based on Ethernet

水电站卷扬式启闭机安装位置相对分散,采用传统控制系统实现集中控制较为困难,且现场布线及故障节点较多,抗干扰能力较差。通过对可编程逻辑控制器(PLC)及以太网通信技术的研究,开发了一种基于以太网通信的水电站卷扬式启闭机控制系统,该系统采用以太网总线通信技术,大大减少了现场电缆敷设数量,提高了系统的抗干扰能力,可实现闸门的分级自动控制,远程少人操作,人机交互性能优越,自动化程度高,运行稳定可靠,可为水电站卷扬式启闭机的设计提供参考。

Since the relatively dispersed layout of a winch hoists in a hydropower station,it is difficult to realize centralized control by traditional control system.There are complex wiring and fault nodes on site,which leads to poor anti-interference ability.After the research on PLC and Ethernet bus communication technology,a winch hoist control system for hydropower station is develped based on Ethernet communication technology.The technology reduces the number of wires on site,improves the anti-interference ability of the system,realizes graded automatic control on gates,reduces the operating staff and increase the control distance,advances the human-computer interaction performance,and improve the automation and stability of the system,which provides reference for the design of winch hoists for hydropower stations.