Dispatching integrated data platform based transformer fault analysis system and method

Abstract

The invention discloses a dispatching integrated data platform based transformer fault analysis system and method. The dispatching integrated data platform based transformer fault analysis system comprises a data acquisition terminal, a communication network and a dispatching server. The data acquisition terminal provides fault data and transmits the data to the dispatching server through the communication network; the dispatching server obtains a fault waveform based on the obtained fault data and in combination with relay protection information and wave recorder networking information. Effective data are extracted from protective wave records and wave records of the wave recorder based on a transformer model configured at the dispatching end, and virtual wave recording data containing the transformer information are synthesized. A transformer differential current is then calculated based on the Kirchhoff's law. Finally, a transformer fault analysis detailed report is formed. According to the dispatching integrated data platform based transformer fault analysis system and method, an analyzer can master the fault process in time and accurately and can obtain action information of a protection device at the same time, references can be provided for a dispatcher to analyze the fault, and the dispatcher can concentrate on processing the fault. Therefore, the work efficiency is increased and the fault processing time is reduced.

Description

technical field [0001] The invention relates to a transformer fault analysis system and method based on a dispatching comprehensive data platform. Background technique [0002] After a power system failure occurs, power system dispatching analysts urgently need to analyze the cause of the failure, resolve the failure, and resume power transmission. At present, the intelligent fault diagnosis system based on the dispatching comprehensive data platform generally focuses on the judgment of faulty components and the analysis of line faults, and the analysis function of transformer faults is weak. Due to some restrictions in the design of substations, many substations do not have dedicated main transformer fault recorders, and the main transformer information is scattered and connected to multiple line fault recorders. Therefore, even after a failure, the recorded wave data can be sent to the comprehensive dispatching data platform, and the current system is not easy to analyze ...

AI Technical Summary

Problems solved by technology

Since most grid faults are line faults, and the analysis of main transformer faults is difficult, most dispatching technical support systems ignore the analysis and judgment of main transformer faults

[0004] Transformer fault analysis depends on the differential current analysis of the main transformer. Due to the different voltages on each side of the transformer and the different winding wiring methods, it involves current reduction and phase compensation issues, so its differential current analysis calculation method is more complicated.

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