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Extra-high voltage direct current transformer calibration device, system and method

A technology of UHV DC and DC transformers, applied in measuring devices, radio wave measurement systems, satellite radio beacon positioning systems, etc., can solve problems affecting the calibration reliability of DC transformers, so as to avoid modification work and ensure synchronization sexual effect

Inactive Publication Date: 2020-05-19
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the manual reading of the power value, it is not completely synchronized, which will affect the calibration reliability of the DC transformer

Method used

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  • Extra-high voltage direct current transformer calibration device, system and method
  • Extra-high voltage direct current transformer calibration device, system and method
  • Extra-high voltage direct current transformer calibration device, system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The invention provides a UHV DC transformer calibration system, including:

[0042] The first image acquisition module;

[0043] The second image acquisition module;

[0044] The wireless synchronization module controls the first image acquisition module and the second image acquisition module to obtain the power value pictures of the secondary side of the DC transformer to be calibrated and the secondary side of the standard DC transformer at the same time; preferably, the wireless synchronization The module is driven by high-precision GPS satellite timing, which can effectively ensure the synchronization of information collected during the calibration process;

[0045] The verification processing module acquires the power value pictures collected by the first image acquisition module and the second image acquisition module, and performs verification processing.

[0046] In a preferred mode of the embodiment of the present invention, both the first image acquisition ...

Embodiment 2

[0051] An embodiment of the present invention provides a UHV DC transformer calibration method, such as figure 2 shown, including:

[0052] Send a control signal to the wireless synchronization module, so that the wireless synchronization module controls the first image acquisition module and the second image acquisition module, and respectively acquires the power value pictures of the secondary side of the DC transformer to be calibrated and the secondary side of the standard DC transformer at the same time ;

[0053] Send a control signal to the verification processing module, so that the verification processing module receives the power value pictures sent by the first image acquisition module and the second image acquisition module, and performs verification processing based on the received power value pictures.

[0054] In a specific implementation manner of the embodiment of the present invention, the verification processing of the received power value picture includes t...

Embodiment 3

[0057] Based on the same inventive concept as in Embodiment 2, an UHV DC transformer calibration device is provided in the embodiment of the present invention, including:

[0058] The first control module is used to send a control signal to the wireless synchronization module, so that the wireless synchronization module controls the first image acquisition module and the second image acquisition module, and obtains the secondary side of the DC transformer to be calibrated and the secondary side of the standard DC transformer respectively The power value picture at the same time on the side;

[0059] The second control module is used to send a control signal to the verification processing module, so that the verification processing module receives the power value picture sent by the first image acquisition module and the second image acquisition module, and performs the power value based on the received power value picture Check processing.

[0060] In a specific implementatio...

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Abstract

The invention discloses an extra-high voltage direct current transformer calibration device, system and method. The system comprises a first image acquisition module, a second image acquisition module, a wireless synchronization module and a verification processing module. The wireless synchronization module controls the first image acquisition module and the second image acquisition module to respectively acquire electric quantity value pictures of the secondary side of a direct current transformer to be calibrated and the secondary side of a standard direct current transformer at the same moment; and the verification processing module acquires the electric quantity value pictures acquired in the first image acquisition module and the second image acquisition module and performs verification processing. The synchronous picture acquisition technology is adopted so that the modification work of the calibrated direct current transformer is avoided.

Description

technical field [0001] The invention belongs to the technical field of transformer calibration, and in particular relates to a calibration device, system and method for an UHV DC transformer. Background technique [0002] The UHV DC transformer is an important primary device in the DC transmission system. It is used to provide instant and accurate measurement information for the system. Its working reliability and measurement accuracy are directly related to the safety and normal operation of the DC transmission system. [0003] At present, most UHV DC transformers are calibrated by direct measurement method, and the calibration work usually occurs during the power outage or maintenance of the converter station. Use UHV DC voltage / current generator to generate the voltage / current required for calibration, and apply it to the primary side of the standard DC transformer and the primary side of the calibrated transformer at the same time, and read the secondary measurement syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02G01S19/07
CPCG01R35/02G01S19/07
Inventor 卢树峰黄奇峰李志新徐敏锐王忠东陈刚陆子刚陈文广吴桥王少华尤文正郭家豪
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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