Panoramic wave recording method and platform system capable of supporting fault diagnosis and analysis of power grid

Abstract

The invention discloses a panoramic wave recording method and platform system capable of supporting the fault diagnosis and analysis of a power grid and belongs to the power system and automation field. The platform system of the invention comprises a three-layer structure which comprises an acquisition area, a regional station area and a master station area. According to the panoramic wave recording method, after a fault occurs on the power grid, fault acquisition terminals can be started through a plurality of means to perform multi-data type fault recording; the fault acquisition terminals indirectly upload fault information to a panoramic wave recording platform regional master station; the panoramic wave recording platform regional master station performs full-grid wave recording cooperative control; and after completing data recording, the fault acquisition terminals transmit fault wave recording files to the panoramic wave recording platform regional master station through a data transmission network; and the panoramic wave recording platform regional master station receives the fault wave recording files of all the fault acquisition terminals and then performs synchronization processing on fault data according to high-precision time scales. With the panoramic wave recording method and platform system capable of supporting the fault diagnosis and analysis of the power grid of the invention adopted, powerful data support can be provided for the automatic control of the power grid.

Description

technical field [0001] The invention belongs to the technical field of electric power system automation. Specifically, the invention relates to a panoramic wave recording method and a platform system supporting power grid fault analysis and perception. Background technique [0002] With the rapid increase of the DC transmission scale of the State Grid Corporation of China, the interconnection of large-scale power systems is becoming the development trend of domestic power grids. The coupling between AC and DC, sending and receiving terminals, and upper and lower power grids is becoming closer and closer, and the characteristics of grid integration are becoming more and more prominent. The fault pattern of the power grid has gradually changed from local isolated faults to systematic cascading faults. The stable operation of the system is facing greater pressure, and the analysis of power grid accidents is also facing more and more challenges. The grid fault forms are complex ...

AI Technical Summary

Problems solved by technology

[0003] At present, various data acquisition devices widely distributed in the power grid have played a great role in accident records and local accident analysis, but there are the following deficiencies in supporting accident analysis under the current situation: scattered data records, lack of global coordination , which may lead to the loss of key node data; inconsistent acquisition synchronization accuracy, large data integration error; lack of systematic analysis of sampling objects and distribution points, and insufficient completeness of power grid fault analysis

Inconsistent data collection source specifications, inconsistent data processing methods, subject to professional management constraints, it is difficult to meet the requirements of wide-area complex fault analysis

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