A Distributed Power Quality Remote Diagnosis Method

Abstract

The invention relates to a remote diagnosis method for distributed quality of electric energy, which includes the following steps: step 1 detecting unusual conditions of quality of electric energy of power grid operation at a diagnosis point, and performing source tracing and positioning; coming to next step in case of failing to rule out the fault cause; step 2 enabling the diagnosis point to send collaborative diagnosis signals to an upper-level diagnosis station, and enabling the upper-level diagnosis station to judge and diagnose and feed back diagnosis results to the diagnosis point; coming to next step in case that the upper-level diagnosis station cannot rule out the cause of unusual conditions; and step 3 enabling the upper-level diagnosis station to send a diagnosis request to a technical support center, and enabling the technical support center to judge the cause of the unusual conditions and feed back results and solutions to the diagnosis point. The remote diagnosis method for distributed quality of electric energy provides a solution for achieving remote diagnosis of quality monitoring of electric energy, resolves existing problems that quality of electric energy of the end of an equipped grid cannot be monitored accurately, truly and timely correct analysis and judgment cannot be made, and effective measures cannot be taken, and improves intelligent operation level of the power grid and work efficiency of operating maintenance workers.

Description

Technical field: [0001] The invention relates to the field of power quality monitoring, in particular to a distributed power quality remote diagnosis method. Background technique: [0002] With the continuous deepening of power grid construction and the access and use of various new energy sources (distributed power sources), new equipment, and new technologies in the power grid, the scope of power quality monitoring at the end of the distribution network is wider and the granularity is finer. The existence of a large number of power electronic devices and nonlinear loads makes the problem of power quality in the system increasingly prominent. However, the existing power quality monitoring and judging methods generally use portable testers. Even the commonly used power quality detection devices currently have problems such as poor real-time performance, heavy workload, low efficiency, and lack of decision-making when processing a large amount of collected data. Judgment bas...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a distributed power quality remote diagnosis method, and at the same time provides technical support for the establishment of a unified power quality monitoring information system, and solves the existing inaccurate, true and timely monitoring of power distribution and consumption. Power quality at the end of the grid, make correct analysis and judgment to take effective measures, and solve the problem that information resources cannot be shared among existing systems.

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