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Power distribution network safe distance identifying method and device

A technology of safety distance and identification method, which is applied in the field of distribution network safety distance identification method and device, and can solve problems such as inability to accurately identify distribution network safety distance

Inactive Publication Date: 2019-04-16
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides a distribution network safety distance identification method and device to solve the technical problem that the safety distance in the distribution network cannot be accurately identified in the prior art

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  • Power distribution network safe distance identifying method and device
  • Power distribution network safe distance identifying method and device
  • Power distribution network safe distance identifying method and device

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0041] see figure 1 , is a schematic flowchart of a method for identifying a safe distance in a distribution network provided by an embodiment of the invention. to combine figure 1 It can be obtained that the distribution network safety distance identification method provided by the implementation of the present invention includes the follo...

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Abstract

The invention discloses a power distribution network safe distance identifying method and device. The method comprises the steps that a test site is selected, the mutual distances between a pluralityof test points of the test site, the distances between the multiple test points and a high voltage source and the field strength of the test points are obtained; the field strength gradient at the test site is calculated according to the mutual distances between the multiple test points and the field strength of the test points; a non-parametric regression model between the electric field strengthand the safety distance is established according to the field strength gradient and the distances between the multiple test points and the high voltage source; and the field strength of a working point is brought into the non-parametric regression model to obtain the safety distance of the working point. The power distribution network safe distance identifying method solves the problem that the safety distance cannot be accurately identified on the distribution network operation site, and has the advantages of being wide in application range, high in accuracy, convenient to test, safe, high in efficiency and the like.

Description

technical field [0001] The present application relates to the technical field of safe operation of distribution network, and in particular to a method and device for identifying a safe distance of distribution network. Background technique [0002] Since the distribution network is directly facing the users, its failure will directly affect the normal power supply of the users. According to statistics, nearly 90% of the power outages of power users in my country are caused by the medium and low voltage distribution network, and the distribution network is also the cause of the disturbance of power quality. major factor. In the face of the increasing power supply demand of distribution network and the increase of connection complexity, real-time monitoring, inspection and maintenance of distribution network are the key to ensure the stable operation of distribution network. [0003] At present, the inspection work of the distribution network is carried out by operators wearin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R29/14G01B21/02
CPCG01B21/02G01R29/14G01R31/086G01R31/088
Inventor 宁友欢徐肖伟项恩新刘红文
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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