GOOSE over UDP transmission mechanism for real-time data fast transmission in distribution network

Distributed control can achieve good control performance with fast response speed, it will be the development trend of protection and control applications in distribution network. Real-time data fast transmission technology is a key supporting technology for distributed control. A transmission scheme (GOOSE over UDP) based on UDP(User Datagram Protocol) to transmit GOOSE real-time message is proposed. The real-time message is mapped to the UDP protocol of transport layer, and based on IP peer-to-peer communication network to achieve message transmission in WAN(Wide Area Network), which can satisfy the requirements of real-time on message transmission. A real-time data transmission test system that could transmit GOOSE over UDP real-time data among LANs(Local Area Networks) was set up. Various factors that impact the real time performance of message transmission latency were tested. The maximum transmission latency between STUs measured was found to be less than 10ms, which is able to meet the requirements of distributed control applications in distribution network.