Substation system fault online simulation method based on IEC61850 standard GOOSE and SV technologies

Abstract

The invention discloses a traction substation system fault online simulation method based on IEC61850 standard GOOSE and SV technologies. The method comprises the steps that (1) an SCD file is analyzed; (2) primary equipment parameters are input; (3) communication simulation initialization configuration is performed; (4) network topology is analyzed in real time; (5) a system short-circuit fault is set, and a device participating in online simulation is selected; (6) a system fault sampling number is automatically generated; (7) the system fault sampling number is sent to the selected device through the Internet, and simulation software sends a synchronous simulation instruction to the device; (8) the device gets into a simulation state, simulation fault sampling data serves as sampling data, and a simulation report record is transmitted back; (9) if a primary system has a true fault in the simulation process, a normal operating state is switched to seamlessly; and (10) the simulation software manually changes the on-off state of a breaker, and the steps (7) and (8) are repeated to complete the online simulation process. The method is mainly used for completing correctness check of network configuration of an intelligent protection system in a substation.

Description

technical field [0001] The present invention relates to the application field of the general object-oriented substation event (GOOSE) and sampling value (SV) of the international standard "Substation Communication Network and System" (IEC61850) in the substation automation system, and specifically relates to a GOOSE and SV technology based on the IEC61850 standard Online simulation method for substation system faults. Background technique [0002] With the promotion of the IEC61850 protocol and the development of intelligent power technology, the railway traction substation is also researching and gradually applying the protection automation system of the intelligent substation based on IEC61850, using GOOSE and SV technology to send and receive information to realize various functions in the substation. This kind of protection function, this signal transmission method is essentially different from the conventional traditional microcomputer protection, and the test items, te...

AI Technical Summary

Problems solved by technology

[0007] 1) Due to the limitation of the number of interfaces of the current digital or traditional relay protection tester, only the individual inspection of the protection device can be realized, and the complete secondary circuit cannot be tested in some ways

[0008] 2) For the protection inspection of the main transformer differential and bus differential, etc., which need to output digital values ​​at different locations at the same time, the existing calibrator has no reliable inspection plan to follow, and cannot perform complex secondary functions such as main transformer and bus differential. Effective inspection of the digital protection of the secondary circuit cannot meet the professional maintenance and management needs of on-site intelligent substation relay protection

[0009] 3) There is a lack of effective means to test the protection function of the system involving multiple compartments, and the content of the test is not comprehensive

[0010] During the normal operation of the system, it is impossible to detect the intelligent relay protection device and its function in real time, and it is impossible to determine whether it is in a normal working state, and the stability and reliability of the system operation cannot be sufficiently guaranteed

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