GOOSE communication simulation and fault diagnosis method for station level of intelligent substation

Abstract

The invention relates to a GOOSE communication simulation and fault diagnosis method for a station level of an intelligent substation. The method is characterized by comprising the following steps of (1) SCL file analysis, wherein an SCL model configuration file of an automatic system of the substation is read in through a standard XML analyzer, and an intelligent electronic equipment list including GOOSE configuration is analyzed; (2) communication simulation initialization configuration, wherein in the initialization configuration process, GOOSE communication parameters are automatically loaded in a simulation carrier, and simulation information list is automatically built by the simulation carrier according to the XML data nest relation. A GOOSE simulation mechanism is constructed through XML langue analysis, online simulation of GOOSE communication behaviors of the automatic system of the substation is achieved, and a visual and reliable simulation method is provided for an intelligent power grid simulation laboratory.

Description

technical field [0001] The invention relates to the application field of the general object-oriented substation event (GOOSE) in the substation automation system of the international standard "Substation Communication Network and System" (IEC61850), especially a GOOSE communication simulation and fault diagnosis method for the intelligent substation control layer . Background technique [0002] With the continuous expansion of the grid scale, the continuous development of computer, power electronics and communication technologies, and the gradual improvement of the application level of substation automation, the substation automation system has been developing in the direction of digitalization and intelligence. The availability, reliability, stability, real-time and basic data quality requirements of substation automation professional equipment are getting higher and higher, thus putting forward higher safety requirements and technical requirements for the operation and mai...

AI Technical Summary

Problems solved by technology

[0005] Compared with traditional substations, the network structure, communication mode, and transmission method of intelligent substations are much more complex, and have higher technical requirements, so that maintenance personnel cannot accurately and quickly obtain the detailed information of protocol messages in the communication process in a short period of time, which is not suitable for maintenance. The personnel sort out the clues and find out the cause of the failure, which also increases the workload and difficulty of the maintenance personnel

Especially in the occurrence of sudden accidents in substation automation systems, the rapid response to faults, the rapid positioning of fault types, and the processing and investigation are very slow and difficult.

Existing methods for dealing with defects and failures are manual tests to check and deal with them step by step and layer by layer, but these methods have no way to start with intelligent substations, work efficiency cannot be improved, and there is a lack of practical, convenient and effective methods Solve the urgent problems of current troubleshooting and equipment maintenance

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