HSR-based Intelligent Substation Process Level Communication Network

Abstract

A new mode of process network Architecture for intelligent substation protection is considered in this paper, network based on HSR (High-availability Seamless Redundancy). HSR is required for all he devices inside a bay. And devices in a bay are all in a HSR loop network. Information is shared by HSR switch between bays. To the problem of the data synchronization in different space for relay protection in intelligent substation, a method of data delay measurement based on HSR for intelligent substation is proposed. The SV message is compensated by certain delay to get rid of the dependence on the clock. Finally, the technical advantages and future adaptability of the process network scheme based on HSR are analyzed which adapts to the multiplex communication requirement in intelligent substation.