基于RTDS的数字化变电站过程层配置方案仿真

摘要

According to the features of digital substation process level, the feasibility of configuration scheme by RTDS ( Real - time Digital Simulator) is studied. The base bus structure of process level network and selection requirement of Ethernet switch are analyzed. A network organizing method of GTNET boards that simulate the transmission of SV and GOOSE message is studied. A 220 kV digital substation process level network based on RTDS is established. The concrete method of Merging Unit and GOOSE Configuration is proposed. A connection scheme between network tester and simulated process level network is designed. The time delay and frame loss rate on the transmission of SV and GOOSE message are tested. The result of experiment shows that it provides the theoretical support and technical reference for the selection and the operation tests of process level configuration scheme.%针对数字化变电站过程层的特点,利用RTDS研究了其配置方案的可行性.分析了过程层网络的基本总线结构以及以太网交换机的选择条件,研究了适用于RTDS的模拟SV和GOOSE报文发送的GTNET板卡的组网方法,组建了基于RTDS的某220kV数字化变电站的过程层网络,给出了合并单元配置以及GOOSE配置的具体方法,设计了网络测试仪与模拟过程层网络的连接方案,并对SV和GOOSE报文传输时延和丢帧率进行了测试.实验表明,利用RTDS能够对数字化变电站过程层配置方案选择和投运测试提供理论支持和技术参考.