Performance Research Of Wavelength Division Multiplexing Passive Optical Communication Network For A New Generation Of Intelligent Substation

Intelligent substations are an important part of the smart grid.Compared with traditional substations,smart substations use network communication technology on a large scale.At present,existing substation communication networks are mostly based on shared resource-based Ethernet switching technology,and there is competition and uncertainty in data transmission.At the same time,the system adopts the switch cascading structure to process data packets.The layer forwarding of packets causes the transmission delay to be uncertain and the jitter is large.It is difficult to ensure the real-time performance of the service,and the physical structure of the substation is complex and the network robustness is poor.Aiming at the problem of network transmission delay uncertainty,large jitter and poor network robustness in intelligent substation communication system,the multiplexing mode of intelligent substation communication network is studied.This paper proposes the WDM network architecture mode.The new generation of intelligent substation WDM passive optical communication network architecture is based on passive optical network and virtual point-to-point bidirectional transmission link,using some technology to ensure the stability and reliability of the entire network.This paper analyzes the related requirements of the communication network technology and communication technology of the new generation intelligent substation,and studies the architecture and key technologies of the new intelligent substation communication system with the core switch as the core and the passive optical network as the main body.Passive optical network technology,service isolation technology,common network common port technology and other processes.This paper analyzes the actual substation communication network structure,and then determines the network improvement scheme,establishes the communication network model and each network equipment model,and uses simulation software to simulate the effectiveness,reliability and robustness of the network under different conditions.Simulation results It indicates that the network transmission quality conforms to the substation communication network standard.