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Non-contact voltage measurement method and device, computer equipment and storage medium

A voltage measurement, non-contact technology, applied in computer equipment and storage media, non-contact voltage measurement method, device field, can solve problems such as cumbersome process and difficult construction

Active Publication Date: 2021-08-10
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] It can be seen that the above-mentioned voltage measurement method based on the electromagnetic voltage transformer is cumbersome and difficult to construct.

Method used

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  • Non-contact voltage measurement method and device, computer equipment and storage medium
  • Non-contact voltage measurement method and device, computer equipment and storage medium
  • Non-contact voltage measurement method and device, computer equipment and storage medium

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Embodiment Construction

[0055] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0056] In the prior art, for the voltage detection of the transmission line of the power system, a contact voltage measurement method is usually used, wherein the contact voltage measurement method refers to connecting the probe of the electromagnetic transformer with the metal wire inside the transmission line, The voltage on the transmission line is then measured based on the principle of electromagnetic induction. Among them, when connecting the probe of the electromagnetic transformer to the metal wire inside the transmission line, it is necessary to first control the tr...

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Abstract

The invention relates to a non-contact voltage measurement method and device, computer equipment and a storage medium, and belongs to the technical field of power testing. The non-contact voltage measuring method comprises the following steps of: acquiring waveform information of voltage on a voltage dividing unit; inputting a first reference voltage signal with the same frequency and phase as the voltage on the voltage dividing unit to an electrical loop according to the waveform information, and detecting the voltage on the voltage dividing unit to obtain a first voltage signal; after inputting the first reference voltage signal, inputting a second reference voltage signal with the same frequency and opposite phase as the voltage on the voltage dividing unit to the electrical loop according to the waveform information, and detecting the voltage on the voltage dividing unit to obtain a second voltage signal, making the amplitude of the first reference voltage signal equal to that of the second reference voltage signal; and calculating the voltage of a to-be-tested circuit according to the first voltage signal and the second voltage signal. The method can conveniently and simply detect the voltage at any position in a power transmission line.

Description

technical field [0001] The present application relates to the technical field of power testing, in particular to a non-contact voltage measuring method, device, computer equipment and storage medium. Background technique [0002] Voltage measurement is widely used in power systems. The accuracy, reliability, and convenience of voltage measurement play an important role in fault detection and analysis of power systems. [0003] At present, the most commonly used voltage measurement technology is the voltage measurement technology based on electromagnetic voltage transformers. Among them, the electromagnetic transformer includes a primary winding and a secondary winding, and the process of measuring voltage includes: first, disconnecting the high-voltage wire, then connecting the primary winding of the electromagnetic transformer to the high-voltage wire, and finally, using The high-voltage wire is energized, so that the primary winding of the electromagnetic transformer gene...

Claims

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Application Information

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IPC IPC(8): G01R19/25
CPCG01R19/25
Inventor 李鹏周柯田兵骆柏锋张佳明尹旭刘仲王志明孙宏棣吕前程陈仁泽李立浧王晓明金庆忍
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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