Automatic testing system for relay protection device of intelligent substation

Abstract

The invention relates to an automatic test system for a relay protection device of an intelligent substation. The system is composed of an automatic test system software, a tester client software, an intelligent relay protection tester and a relay protection device; the automatic test system software and the tester client The terminal software realizes inter-program communication through SOCKET (socket), completes the tester control command issuance and test result feedback function; and the relay protection device under test adopts the MMS communication protocol based on the IEC61850 standard to realize unicast communication. Realize the issuance of protection device control commands and the acquisition of information such as device action reports, wave recording, and remote signal displacement. The automatic test system software realizes test task scheduling control, result discrimination, and finally realizes fully automatic closed-loop testing; the system of the present invention The design ideas and implementation methods have strong reference value for the commissioning and acceptance of smart substation projects, and have broad prospects for promotion and application.

Description

technical field [0001] The invention belongs to the technical field of automatic testing, and in particular relates to an automatic testing system for a relay protection device of an intelligent substation. Background technique [0002] The reliability of the power system has always been a key research topic in the industry. In fact, in addition to considering the overall design of the power system itself, the reliability of relay protection, as the secondary core of the substation, also directly affects the operation stability of the power system. Especially with the construction of smart grid, relay protection devices based on new principles have been put into application one after another. How to fully and effectively verify the functional correctness and reliability of relay protection devices in smart substations is a problem that needs to be studied. [0003] As an effective test method, automatic testing has long been a research hotspot in the industry. However, due t...

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Problems solved by technology

[0003] As an effective test method, automatic testing has long been a research hotspot in the industry. However, due to the inconsistent external interfaces of traditional substation relay protection devices (such as too many communication protocol versions, inconsistent list of fixed values, and inconsistent content formats of action reports, etc.), It largely limits the practical application of automated testing

At present, the testing work of most relay protection devices, especially the static model test, still adopts the traditional method of manual testing using a relay protection tester, which has the disadvantages of low test efficiency and large influence of human factors.

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