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Power transmission line ice coating monitoring device based on ice layer dielectric properties and rotatable conductors

A technology for dielectric properties and transmission lines, which is applied in the field of ice coating monitoring devices for transmission lines based on the dielectric properties of ice layers and rotating conductors, can solve the problems of ice coating measurement errors, the reliability of rotating equipment affecting the feasibility of the device, and the like. Enhanced reliability, simple structure, and reduced energy consumption

Active Publication Date: 2019-03-01
CHONGQING UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

This method needs to provide a motor, which needs to provide a certain power, and the reliability of the rotating equipment will also affect the feasibility of the entire device. Ice monitoring brings some measurement error

Method used

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  • Power transmission line ice coating monitoring device based on ice layer dielectric properties and rotatable conductors
  • Power transmission line ice coating monitoring device based on ice layer dielectric properties and rotatable conductors
  • Power transmission line ice coating monitoring device based on ice layer dielectric properties and rotatable conductors

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, the transmission line icing monitoring device based on the dielectric properties of ice and rotating conductors includes left base 1, right base 2, reference conductor I3, reference conductor II4, ice-melting resistance wire 5, bearing 6, and tapered connection Body 7, sliding connector 8, gravity sensor I9, gravity sensor II10, mounting bracket 11, central control system 12 and fixed cross bar 13.

[0023]The two ends of the reference conductor I3 and the reference conductor II4 are mounted on the left base 1 and the right base 2 through bearings 6 respectively, and the reference conductor I3 and the reference conductor II4 are arranged up and down. The reference conductor I3 and the reference conductor II4 are hollow structures, and the ice-melting resistance wires 5 are respectively arranged in th...

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Abstract

The invention discloses a power transmission line ice coating monitoring device based on ice layer dielectric properties and rotatable conductors. The device comprises a left base, a right base, a reference conductor I, a reference conductor II, an ice melting resistance wire, a bearing, a tapered connection body, a sliding connector, a gravity sensor I, a gravity sensor II, a mounting bracket, acentral control system and a fixed crossbar. The device is based on the dielectric properties of an ice layer; the two rotatable reference conductors form two electrodes; after the reference conductors are coated with ice, a medium between the two electrodes changes, so the dielectric properties of the two electrodes change; a variable frequency power source is applied to two ends of the electrodes; micro current between the electrodes is measured through a picoammeter; when an ice coating type and thickness change, the current between the electrodes also changes; and relationships between thefrequency of the current between the electrodes, the ice coating type and the thickness are established, the ice coating state of the reference conductors can be obtained.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of power transmission lines, in particular to an ice coating monitoring device for power transmission lines based on the dielectric properties of ice layers and rotating conductors. Background technique [0002] Power grid icing is a serious natural disaster, and my country is one of the countries most affected by icing disasters. With global warming, extreme climates are frequent around the world, and large-scale icing disasters occur from time to time. Especially in January-February 2008, most areas in southern my country suffered the most serious ice cover since meteorological records began. The ice disaster caused large-scale and long-term outages of power transmission lines in Hunan, Guizhou, Guangdong, Yunnan, Jiangxi and other provinces, causing huge losses to the national economy and people's lives, with direct economic losses exceeding 100 billion yuan. [0003] Grid icing may ...

Claims

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Application Information

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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 毕茂强杨俊伟潘爱川董扬江天炎陈曦
Owner CHONGQING UNIV OF TECH
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