Relay protection accident image detecting system and relay protection accident image detecting method

Abstract

The invention discloses a relay protection accident image detecting system and a relay protection accident image detecting method, belonging to the technical field of a power system. The system comprises a data communication module, a model mapping module, a digital simulating module, a failure simulating module, a microcomputer protecting device and a failure evaluating module. According to the detecting system and the detecting method, the motion behavior of a field scene analysis protecting device is effectively simulated, the action performance of a transformer substation protecting device is positioned quickly and effectively, the analyzing efficiency of the relay protecting motion behavior and the responding speed of a power grid accident handling are largely improved; thereby providing the key supporting technique to self-healing type intelligent power grid.

Description

technical field [0001] The present invention relates to a system and method in the field of electric power system technology, in particular to a relay protection accident image detection system and detection method. Background technique [0002] The IEC61850 standard system proposes a "three-layer, two-network" structure for the substation automation system, the core of which is to realize the networked information sharing mechanism, which lays the foundation for optimizing the information flow of substations and improving the integration of information utilization. The integrated installation of protection devices and primary equipment will become a typical construction mode of smart substations. In this way, the connection between primary equipment and secondary devices is very simple and standard, and it is possible to complete the factory, and the possibility of connection line errors will be greatly reduced. The information is sent out through the optical cable, which c...

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Problems solved by technology

[0005] However, this technology builds multiple simulated substations in the SCADA system, and cannot reflect the secondary system of the actual substation without using the mirroring technology based on IEC61850; and this technology uses simulated power grid faults to obtain various data and evaluate the response of the standby automatic switching device Behavior, and compared with theoretical calculation; instead of using the data formed by the actual fault, input the protection device of the mirrored substation system, and compare the action behavior of the mirrored substation system and the remote substation protection when the power grid is actually faulty

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