Merging unit based on mms and method of applying test stimulus

Abstract

The invention belongs to the technical field of intelligent substation detection, and provides a merging unit based on MMS and a test stimulus amount applying method. The merging unit comprises a data communication module, a data collecting module, a data transmitting module and a configuration management module, wherein the data communication module receives a test instruction from an MMS network of an external test system and test stimulus amount from an SV network, transmits the test instruction and the test stimulus amount to the data collecting module, and sends SV data out in a network or direction-connection optical cable mode through an Ethernet port of the data communication module. According to the merging unit and the test stimulus amount applying method, site non-intrusive test can be achieved, namely a connecting wire of a protecting system is not changed on site, the test instruction and the test stimulus amount are applied to the merging unit by combining the MMS network and a communication port of the SV network, closed loop test of the tested protecting system is completed, and site test efficiency is greatly improved.

Description

technical field [0001] The invention relates to a device in the technical field of intelligent substation detection, in particular to an MMS-based merging unit and a method for applying a test stimulus. Background technique [0002] In the background of smart substation technology, the IEC61850 standard has become a key supporting technology system. IEC61850 proposed the concept of "three layers and two networks", and the process layer merging unit and intelligent terminal came into being. According to the IEC61850 standard, the process layer IED equipment only connects to the process layer SV and GOOSE network. The biggest disadvantage brought by this application mode is that the process layer IED close to the distributed installation of primary equipment cannot effectively provide services such as equipment operation status alarms, and cannot perform remote maintenance and configuration. Therefore, the process layer IED supports MMS service, which will help realize the re...

AI Technical Summary

Problems solved by technology

However, the key point of this technology is to generate test cases based on SCD, instead of using protection device fault reports as test cases, and there is no relevant technical requirement for the merging unit of test stimulus application objects

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