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随着PAC(可编程自动化控制器)应用到励磁系统,高效、可靠的计算机网络技术也成为磁系统内部通信方式之一。观音岩水电站采用东方电机GES6620励磁系统,该系统以PAC作为励磁系统调节器的主控制器,采用计算机网络系统中的主流技术——双星型以太网络结构,高效的实现了励磁系统双机冗余和各盘柜信号采集及控制等问题。介绍了主流励磁系统内部通信的方式,结合观音岩电站励磁系统详细分析了双星型以太网络技术在励磁系统的应用。
With the PAC (Programmable Automation Controller) applied to the excitation system, efficient and reliable computer network technology has also become one of the magnetic system’s internal communication. Guanyinyan Hydropower Station using Dongfang electrical GES6620 excitation system, the system to PAC as the main controller of the excitation system regulator, the computer network system using the mainstream technology - dual-star Ethernet network structure, and efficient implementation of the excitation system dual redundancy And the panel signal acquisition and control and other issues. The way of the internal communication of the main excitation system is introduced, and the application of dual star Ethernet technology in the excitation system is analyzed in detail with the excitation system of Guanyinyan Power Station.