变电站继电保护信息传输方式

随着变电站规模的扩大,对变电站通信水平的要求也越来越高.文章回顾了变电站通信技术的发展历程,介绍了继电保护数据传输的几种主要通信组网方式,并通过分析硬件结构、通信规约以及在变电站中的应用情况等,比较了这几种组网方式的优缺点.通过分析得出,现场总线方式适用于中、低压变电站系统,通常和以太网技术相结合能够发挥更好的作用;而以太网和3-Agent技术适用于高压、超高压系统,它们优越的性能可以保障继电保护信息实时可靠地传输.

Research on transmission mode of relay protection information in transformer substations

With the enlarged scale of transformer substations, higher level telecommunication service is required. This paper reviews the development of communication technology in substation, introduces several kinds of main networking schemes for data transmission of relay pro- tection, and compares advantages and disadvantages of these schemes from hardware structure, communication protocol and applications in substation. Based on the analyses, the paper concluded that the field-bus is suitable for low and medium voltage substation. It will have bet- ter effect when combined with the Ethernet while the Ethernet and 3-Agent technology are more suitable for high and super high voltage substation which can ensure a more reliable and timely transmission.