Automatic closed-loop test method for relay protection devices in smart substations

Abstract

The invention discloses an automatic closed-loop test method for intelligent transformer station relay protection equipment. The method includes the step of establishing an automatic closed-loop test system of the intelligent transformer station relay protection equipment, the steps of building a test project library, the step of analyzing an intelligent transformer station relay protection equipment model configuration file ICD through an XML parsing module, the step of communicating with the intelligent transformer station relay protection equipment to be tested through an SV network, the step of receiving GOOSE information of the intelligent transformer station relay protection equipment to be tested through a GOOSE network, and the step of performing consistency comparison on information. The beneficial effects are that the method provided by the invention can perform action correctness diagnosis on logic node state information of the tested relay protection equipment in a testing process, realizes synchronization of testing process execution and test result diagnosis, can discover a questionable test result in time in the testing process, avoids running with faults in the testing process, and improves test efficiency.

Description

technical field [0001] The invention belongs to the technical field of relay protection detection and relates to an automatic closed-loop test method for a relay protection device of an intelligent substation. Background technique [0002] With the development of computer technology, the relay protection test began to transform from the original manual test to software automatic test. At present, the automatic test for relay protection is based on the concept of automatic test template. The test items required for target protection are decomposed into test modules such as relay characteristics and protection components. The tester identifies the type of target protection and passes the test template. The combination forms all the test items of the target protection, such as the test of overcurrent protection, and the tester calls the overcurrent test module to output the characteristic fault quantity to realize it. At the same time, the tester can automatically configure th...

AI Technical Summary

Problems solved by technology

For the trip output information of the target protection, it generally only includes information such as circuit breaker tripping, reclosing, and other protection start-up failures, and there is no description of the protection action (which protection element operates), and the tester cannot obtain which protection element through the trip information Action, and then it is impossible to judge whether the action logic is correct, and it is impossible to automatically diagnose the correctness of the action of the relay protection

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