Automatic testing system for relay protection device of intelligent substation

Abstract

The invention relates to an automatic testing system for a relay protection device of an intelligent substation. The system is composed of automatic testing system software, tester client software, an intelligent relay protection tester and a relay protection device; the automatic testing system software is in interprogram communication with the tester client software through a SOCKET, and the functions of downwards sending a tester control command and feeding back a testing result are achieved; the automatic testing system software is in unicast communication with the relay protection device to be tested on the basis of an IEC61850 standard by adopting an MMS communication protocol, the functions of downwards sending a protection device control command and obtaining information such as device operation reporting, wave recording and remote signaling deflecting are achieved, the automatic testing system software achieves dispatching control over a testing task and result judgment, and therefore full-automatic closed-loop testing is achieved finally. The design idea and implementation method of the system have a high reference value to links such as debugging and acceptance checking of an intelligent substation project, and the system has wide application and popularization prospects.

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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