基于智能变电站数字化保护的采样数据同步技术应用  

Application of sample data synchronization technology based on the digital protection of intelligent substation

作　　者：殷培峰[1] 张婧瑜[1] 

机构地区：[1]兰州石化职业技术学院,兰州730060

出　　处：《工业仪表与自动化装置》2017年第5期63-66,共4页Industrial Instrumentation & Automation

基　　金：兰州石化职业技术学院教育教学研究基金项目(JY2014-21)

摘　　要：智能变电站数字化保护是将变电站信息采集、传输、处理、输出过程全部数字化,通过分层、分布式通信网络传输,实现全站信息共享。由于超高压变电站动态电磁环境、温度等因素影响,采集电路易受干扰,严重影响采样过程和数据同步。解决这一难题,需要一次设备智能化,二次设备网络化,通过直接采样或网络采样方式,将电子式互感器、合并单元、智能终端、对时技术等有机结合,提高采样精度和信号传输的可靠性。The digital protection of intelligent substation digitalizes the collection, transmission, pro-cessing and output of substation information and share the information within whole substation by layered and distributed communication network transmission. Due to effect of dynamic electromagnetic environ-ment and temperature of the UHV substation, the acquisition circuit is susceptible to interference, seri-ously affecting the sampling process and data synchronization. To solve this problem, intellectualization of primary equipment and networking of secondary equipment are needed. Through direct sampling or net-work sampling, the electronic transformers, the merging units, intelligent terminals, timing technology etc. are combined organically to improve the sampling accuracy and signal transmission reliability.

关 键 词：智能变电站 数字化保护 采样技术 智能终端 对时技术 

分 类 号：TM451.2[电气工程—电器]