System and method for calculating and evaluating information flow of communication network of intelligent substation

Abstract

The invention provides a system for calculating and evaluating the information flow of a communication network of an intelligent substation. The system comprises an SCD (Security Coding Device) analyzing module, a message length calculating module, a steady flow calculating module, a non-steady flow calculating module, a calculating result output module and other modules, an SCD analyzing database, a data type database and a fault database, wherein the SCD analyzing module externally receives an SCD message, is externally connected with an SCD analyzing sub database, and outputs the SCD message to the message length calculating module externally connected with the data type database, the steady flow calculating module and the non-steady flow calculating module respectively receive the outputs of the message length calculating module, the outputs are converged at the calculating result output module, and the non-steady flow calculating module also simultaneously receives the output of the steady flow calculating module and is externally connected with the fault database. The invention also relates to a method for calculating and evaluating the information flow of the communication network of the intelligent substation for the system. According to the system and the method, the design basis is provided for a designer in the design process of the communication network, and the enough predictability is provided for the designer and line personnel.

Description

technical field [0001] The invention relates to a system for calculating and evaluating information flow of an intelligent substation communication network. The invention also relates to a method for calculating and evaluating the information flow of the intelligent substation communication network by using the system. Background technique [0002] First, the relevant abbreviations and key terms used in this paper are defined as follows: [0003] GOOSE general-purpose substation-oriented event object, SV sampling value, [0004] IED intelligent electronic device, VLAN virtual local area network [0005] APPID application identification, AccessPoint access point [0006] PDU Protocol Data Unit. [0007] The smart substation takes primary equipment digitalization, data transmission networking and information sharing standardization as the basic requirements, makes full use of information sharing in the network environment, supports advanced application functions such as in...

AI Technical Summary

Problems solved by technology

This unfounded design method is not economical, and because it cannot accurately predict various operating modes of the network, it may bring hidden dangers to the reliability and real-time performance of the communication network.

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