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Frozen current-based method and system for automatic identification of topological relation of power distribution network courts

An automatic identification system and topology relationship technology, applied in information technology support systems, electrical components, circuit devices, etc., can solve the difficulty of accurately identifying the topology of the power grid, the difficulty of network topology, and the large number of low-voltage distribution stations. problems, to achieve the effect of visual management, curb the phenomenon of electricity stealing, and improve the power supply capacity

Active Publication Date: 2021-07-23
国网山东省电力公司营销服务中心(计量中心) +1
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Problems solved by technology

[0004] However, due to the large number of low-voltage distribution stations, complex electrical wiring, and the phenomenon of private construction and random construction, due to historical and control reasons, there is no unified standard for user topology network planning. Accurate identification of power grid topology has always been a difficult problem in power supply services. , despite the general survey of meters and the verification of the relationship between boxes and meters, it is still difficult to grasp the network topology of the distribution station area in a timely and accurate manner

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  • Frozen current-based method and system for automatic identification of topological relation of power distribution network courts
  • Frozen current-based method and system for automatic identification of topological relation of power distribution network courts
  • Frozen current-based method and system for automatic identification of topological relation of power distribution network courts

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[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0035] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0036] Su...

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Abstract

The invention provides a frozen current-based method and system for automatic identification of a topological relation of power distribution network courts. The method comprises the following steps: setting a frozen current transaction threshold value, judging whether current transaction exceeds the set threshold value or not, and if so, transmitting a freezing command to all low-voltage fault sensors in a broadcasting manner, and freezing current information at the same time; reading the current freezing data with timestamps of all the low-voltage fault sensors in sequence in a polling mode, calculating current freezing data and the last freezing data, and determining relevant parameters including current increment, harmonic increment and leakage current increment information; and performing data grouping and branch analysis according to the related parameters of the frozen current, performing hierarchical analysis according to different main and branch identification results, and determining a topological structure of the power distribution network courts. According to the invention, low-voltage topology automatic identification can be realized.

Description

technical field [0001] The invention belongs to the technical field of electricity consumption information collection, and in particular relates to a method and system for automatically identifying topological relations of distribution network station areas based on freezing current. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The automatic identification of the topology relationship of the electrical network in the distribution station area is essentially to reliably obtain the connection relationship between the electrical equipment in the park, the community, and the building and its power supply, and store these connection relationships in a certain way. At present, the power company is vigorously carrying out the work of connecting operation and distribution. Accurate identification of the network topology in the station area is c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06F16/29G06Q10/00G06Q50/06
CPCH02J3/00H02J13/00001H02J13/00002H02J13/00016G06Q50/06G06Q10/20G06F16/29H02J2203/20Y04S40/124Y02E60/00Y02B90/20
Inventor 张志郭亮荆臻陈祉如赵曦刘亚骑王者龙李琮琮梁波
Owner 国网山东省电力公司营销服务中心(计量中心)
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