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Four-end method compensation capacitor simulator

A technology of compensation capacitor and simulator, which is applied in the field of compensation capacitor, can solve the problems of small standard capacity, inability to manufacture capacity standard capacitors, difficulty in meeting tester calibration requirements, etc., and achieve the effect of meeting calibration requirements

Active Publication Date: 2021-06-29
中国测试技术研究院电子研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the solution provided according to the embodiment of the present invention is that it is affected by the production process of the standard capacitor, and it is impossible to manufacture a standard capacitor with a large capacity. The standard capacity is generally relatively small, and it is difficult to meet the calibration requirements of the tester.

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  • Four-end method compensation capacitor simulator
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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0018] figure 1 is a schematic diagram of a four-terminal compensation capacitor simulator provided by an embodiment of the present invention, as figure 1 shown, including:

[0019] The equal-amplitude advanced phase-shifting circuit performs equal-amplitude phase-shift processing on the input first voltage signal to obtain the same amplitude and advanced phase as the first voltage signal. The second voltage signal;

[0020] An analog-to-digital converter connected to the output terminal of the equal-amplitude leading phase-shifting circuit is used to perform voltage division and attenuation processing on the second voltage signal according to the volt...

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Abstract

The invention discloses a four-end method compensation capacitor simulator which comprises an equal-amplitude overmoving forward circuit, an analog-to-digital converter DAC, a voltage / current V / I conversion circuit, a sampling resistor Rs, an analog multiplier, a low-pass filter and an integrator.

Description

technical field [0001] The invention relates to the technical field of compensation capacitors, in particular to a four-terminal method compensation capacitor simulator. Background technique [0002] In recent years, with the rapid development of the power industry, a large number of shunt capacitors are used in the power system to compensate the power factor of the running lines. The working capacity of the reactive power compensation capacitors is very large. These power compensation capacitors have been connected to the grid for a long time and frequently switched. operate. In order to ensure the reliability of the compensation capacitor, regular testing is required. [0003] Now the test method of compensation capacitance is measured by four-terminal method, which can measure parameters such as capacitance without disconnecting the wires. However, the quality of these compensation capacitor testers in China is uneven, and the measurement department needs to calibrate t...

Claims

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Application Information

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IPC IPC(8): G01R35/00H02J3/18
CPCG01R35/007H02J3/18H02J3/1821Y02E40/30
Inventor 肖鹏杨雪梅李龙王巍王晓晖李竞爽白凌志
Owner 中国测试技术研究院电子研究所