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Method for remotely judging wrong wiring of three-phase three-wire metering device based on load curve

A technology of load curve and metering device is applied in the field of fault remote judgment of three-phase three-wire metering device based on load curve data. The effect of early warning and improving the efficiency of on-site processing

Pending Publication Date: 2022-03-01
GUANGXI POWER GRID CORP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a load curve-based remote judgment method for wrong wiring of a three-phase three-wire metering device, which can solve the problems in the prior art that the wrong wiring judgment of a three-phase three-wire metering device is not specific in fault type and has a high misjudgment rate

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  • Method for remotely judging wrong wiring of three-phase three-wire metering device based on load curve
  • Method for remotely judging wrong wiring of three-phase three-wire metering device based on load curve
  • Method for remotely judging wrong wiring of three-phase three-wire metering device based on load curve

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Embodiment Construction

[0055] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0056] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all...

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Abstract

The invention provides a three-phase three-wire metering device wrong wiring remote judgment method based on a load curve, and the method is characterized in that the method comprises the following steps: obtaining the load curve data of a metering device; carrying out data cleaning on the load curve data; and performing remote research and judgment model judgment on the cleaned data. According to the method, the load curve data of the metering device is cleaned, abnormal invalid data is screened out, the model judgment rule is subjected to inter-phase linkage, the influence of the power factor angle variable is eliminated, the amplitude and the phase characteristic phase are fused, and the characteristic overturning and lasting conditions are statistically analyzed, so that accurate positioning research and judgment of wrong wiring are realized, a large amount of invalid judgment early warning is avoided, and the accuracy of wiring is improved. The field processing efficiency of metering wrong wiring is improved, and metering errors of the operation metering device are reduced.

Description

technical field [0001] The invention relates to the technical field of electric energy metering, in particular to a method for remotely judging errors of a three-phase three-wire metering device based on load curve data. Background technique [0002] Wrong wiring of metering equipment will cause power errors and affect the fairness and justice of trade settlement between power companies and customers. At present, the number of metering equipment in domestic power grid enterprises exceeds 500 million. If the detection of abnormal state of metering equipment relies on on-site inspection, it will consume a lot of manpower and energy. With the advancement of digital power grids, the continuous construction and continuous improvement of metering automatic systems provide conditions for the development and implementation of remote abnormal state detection of metering equipment. Research on some corresponding rules has also been carried out in the industry, but there are also prob...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/66
CPCG01R31/66
Inventor 李金瑾江革力莫芳华吴一鸣蒋雯倩张焜卿柏元杨舟潘俊涛唐佳誉黄柯颖韦江衡唐志涛颜丹丹林秀清陈珏羽陈俊李捷徐植韦航黄军力李桐
Owner GUANGXI POWER GRID CORP
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