Analysis of Relay Protection Technology of Intelligent Substation Based on EPON Network
In recent years,with the rapid development of smart grid in China,the construction of smart substation has been paid wide attention,and it has become the interactive support point of smart grid power generation,transmission and distribution,transformation and dispatching and other work information.Its core technology is modern network communication technology.At present,our country intelligent substation mainly Ethernet switch design network structure,high cost,function is not perfect,lack of scalability and security,and EPON network in the application of intelligent substation relay protection,namely through the Ethernet,passive optical network technology,make the business in passive fiber point to point,point to multipoint transmission,provide support for Ethernet more than various types of business transmission,its perfect signal processing function,short transmission distance,large coverage,low cost,promotion value.This paper analyzes the EPON network technology and puts forward its application measures in the relay protection of smart substation,aiming to enhance the application effect of the relay protection network of smart substation.