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Overhead conductor current-carrying capacity determination method and device based on equivalent heat dissipation identification

A technology for overhead wires and determining devices, which is applied to measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of high cost and difficult implementation, and achieve the effects of low cost, high accuracy, and easy implementation

Pending Publication Date: 2022-06-07
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for determining the ampacity of overhead conductors based on equivalent heat dissipation identification to solve the problems of high cost and difficult implementation in the existing method for determining the ampacity of overhead conductors based on equivalent heat dissipation identification The problem

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  • Overhead conductor current-carrying capacity determination method and device based on equivalent heat dissipation identification
  • Overhead conductor current-carrying capacity determination method and device based on equivalent heat dissipation identification
  • Overhead conductor current-carrying capacity determination method and device based on equivalent heat dissipation identification

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be understood that the step numbers used in the text are only for the convenience of description, and are not intended to limit the order in which the steps are performed.

[0042] It should be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in this specification and the appended claim...

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Abstract

The invention discloses an overhead conductor current-carrying capacity determination method and device based on equivalent heat dissipation identification. The method comprises the following steps: collecting transient temperature data of an equivalent body in a measured environment; establishing a correlation model of the equivalent body temperature parameters and the parameters of the environment where the overhead conductor is located; using the transient temperature data and the correlation model to calculate measured environment parameters; the equivalent body and the overhead conductor are placed in the same measured environment; and calculating the current-carrying capacity of the overhead conductor by using the measured environmental parameters and the conductor heat balance equation. The equivalent body is arranged in the environment where the overhead conductor is located, the measured environment parameters are calculated by collecting the temperature data of the equivalent body, and the current-carrying capacity of the overhead conductor is finally calculated, so that the current-carrying capacity of the overhead conductor can be accurately calculated without directly monitoring the overhead conductor or arranging a sensor; the method has the advantages of low cost, high precision and easy implementation.

Description

technical field [0001] The invention relates to the technical field of overhead conductor current carrying capacity detection, in particular to a method and device for determining the overhead conductor current carrying capacity based on equivalent heat dissipation identification. Background technique [0002] With the continuous development of the power grid system, how to tap the hidden transmission capacity of overhead conductors has become one of the key concerns of the power grid system. Among them, the implicit transmission capacity of the overhead wire can be evaluated by calculating the current carrying capacity of the overhead wire, that is, the calculation result of the current carrying capacity will directly affect the transmission capacity of the overhead wire. [0003] At present, the method for determining the ampacity of overhead conductors based on equivalent heat dissipation identification is mainly divided into two categories according to the different moni...

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Application Information

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IPC IPC(8): G01R31/00G01D21/02G06F30/20G06F17/11G06F113/08G06F119/08
CPCG01R31/00G01D21/02G06F30/20G06F17/11G06F2113/08G06F2119/08Y02E60/00
Inventor 彭向阳王锐骆书剑周刚范亚洲周原魏俊涛
Owner GUANGDONG POWER GRID CO LTD
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