Relay protection device process layer GOOSE and SV communication automatic test method and system

Abstract

The invention discloses a relay protection device process layer GOOSE and SV communication automatic test method and system based on Python. The method comprises the following steps: automatically performing communication message publish and subscription check test on a relay protection device process layer communication message according to subscription and publish, and automatically performing test report output through a reaction result of an IED device, thereby realizing the automatic test of the relay protection device process layer GOOSE and SV communication. Based on Python development,the process layer communication test of the intelligent transformer substation relay protection device is automatically performed; an overall structure of the test system is provided, a test method based on closed loop is proposed, namely, the method for automatically judging a test case through a program thoroughly eradicates the artificial intervention, the test efficiency is improved, and thecredibility and the preciseness of the test are reinforced.

Description

technical field [0001] The invention belongs to the technical field of electric power system relay protection, and in particular relates to a Python-based relay protection device process layer GOOSE and SV communication automatic test method and test system. Background technique [0002] In recent years, with the large-scale operation of smart substations, the workload of relay protection inspection has also doubled, and there are more and more requirements for automatic testing of the process layer of relay protection devices. The traditional method is to combine relay protection test instruments and The relay protection device is connected, and then manually modify the process layer GOOSE and SV communication messages. After the modification is completed, use a specific test instrument to apply to the device, and then judge according to the output result of the device. [0003] This method mainly has the following disadvantages: First, at least two people are required to c...

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Problems solved by technology

[0003] This method mainly has the following disadvantages: First, at least two people are required to complete the process layer communication test of the entire relay protection device. One person edits the process layer communication message and the other manually checks the test results, which leads to The result is that testers need to be very proficient in process layer messages, test methods, configuration information, etc. During the test process, error checks or checks cannot be performed.

Second, the manual test coverage is relatively low, it is difficult to ensure that all test items can be covered, resulting in some important items cannot be covered by the test

Third, the format of the test report output is not uniform, and the test reports of different relay protection devices are not uniform, and it takes a lot of time to sort out the experimental reports

And the test report is sorted out manually, it is difficult to ensure the correctness and reliability of the data

Fourth, the process-level communication of relay protection devices in smart substations requires a lot of manpower to test and inspect, and at the same time, the test results must be analyzed, which is not conducive to the testing of large-scale protection devices

Fifth, in the development process of the general platform for relay protection, if the process layer communication mechanism is modified, a large amount of test resources will be consumed for repeated verification, and the labor cost is high

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