面向智能变电站三网合一网络的PRP/HSR实现方案

Implementation scheme of three-in-one network based on PRP/HSR in smart substation

分析了智能变电站站控层制造报文规范(MMS)网络、过程层面向通用对象的变电站事件(GOOSE)网络、过程层采样值(SV)网络三网合一的网络应用现状,针对目前三网合一网络应用中存在的通信实时性和可靠性的问题,提出了一种基于IEC62439-3并行冗余协议/高可用性无缝环网冗余(PRP/HSR)的智能变电站三网合一网络实现方案,总结了关键设备的研制要点。试验与测试结果验证了所提方案的可靠性。最后对基于HSR双向环网模式下实现分布式母差保护进行了应用设计与分析探讨。

The application status of three-in-one network, which integrates MMS （ Manufacturing Message Specification） network of station level, GOOSE （Generic Object Oriented Substation Event ） network and SV （Sampling Value） network of process level in smart substation, is analyzed. Aiming at the problems of real-time performance and reliability of network communication, an implementation scheme of three-in-one network based on PRP/HSR （Parallel Redundancy Protocol/High-availability Seamless Redundancy） protocol in IEC62439-3 standard for smart substation is proposed, and the key development points of key equipments are summarized. The experimental and testing results verify the reliability of the proposed scheme. The application design and analysis of distributed bus differential protection based on HSR ring network are carried out.