摘要
The end-to-end delay of protective relaying data flow in a substation was studied by dynamic simulation modeling technology.The distribution characteristics of protective relaying data flow and the constitution of the end-to-end delay of messages were analyzed.The simulation model for digital communication between pro-tective relaying equipment and monitoring equipment of interval layer was suggested.The end-to-end delay of pro-tective relaying data flow in different network configurations was analyzed.It is found that the size and interval of the data frame,utilization of the link background and protocols of higher layer are key factors of real-time performance.Detailed analysis results are presented.A proposal for network configuration is suggested to reduce end-to-end delay of pro-tective relaying data flow.
