Device and method for automatically testing pressure of relay protection network of intelligent substation

Abstract

The invention discloses a device for automatically testing the pressure of a relay protection network of an intelligent substation. A human-computer interaction module is connected with a business data flow / pressure data flow processing organization module and a test configuration module, the business data flow / pressure data flow processing organization module is connected with the test configuration module and a data flow output control module, and an SV / GOOSE business data flow / pressure data flow interface module, an MMS business data flow / pressure data flow interface module, a voltage and current analog quantity interface module and a hard contact entry / exit module are electrically connected with the data flow output control module. The invention further discloses a method for automatically testing the pressure of the relay protection network of the intelligent substation. By adoption of the device and method disclosed by the invention, all kinds of possible pressure conditions of the protection device are considered, thereby solving the shortcomings of the existing test means and test methods, and thus improving the test efficiency and reducing the requirements for the technical levels of the testing personnel.

Description

technical field [0001] The invention relates to a network pressure automatic test device, in particular to an intelligent substation relay protection network pressure automatic test device and method. Background technique [0002] In order to get rid of the dependence on switches and clock synchronization systems, at present, most of the process layers of smart substations adopt the "direct sampling and direct jumping" mode, that is, the optical fiber of the protection device is directly connected to the MU (merging unit), and the SV (sampling value) sent by the merging unit is collected. ), the sampling synchronization between different MUs is realized through interpolation calculation; at the same time, the optical fiber of the protection device is directly connected to the smart terminal, and the GOOSE (General Object-Oriented Substation Event) trip signal is sent to the smart terminal, and the position signal of the circuit breaker is collected through the smart terminal ...

AI Technical Summary

Problems solved by technology

[0003] In the case of natural GOOSE heartbeat synchronization, SCD file configuration errors, IED equipment failures, and large-area protection operations, pressure traffic will appear on the process layer and station control layer network. Pressure traffic will also be generated on the "jump port", especially in the case of a loop in the network, the network pressure traffic will be formed quickly and automatically, which will affect the normal operation of the protection equipment

At present, in the substation commissioning, there is a lack of effective means for testing the network performance of relay protection equipment. There are various types of protection, and there is a lack of corresponding complete technical specification support. The performance of the protected network is not tested, or the test method is incorrect, etc., leaving a security risk for the smart substation after it is put into operation

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