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A Deviation Compensation Method for Voltage Transformer

A technology of voltage transformer and compensation method, which is applied in transformer/inductance components, transformer testing, measuring current/voltage, etc., which can solve problems such as installation cost and technical limitations, and increase in error range, so as to achieve easy control and improve reliability Sexuality and easy replacement effect

Active Publication Date: 2018-01-26
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, voltage transformers used in HVDC transmission systems encounter a significant increase in error range when measuring high voltages, and when multiple voltage transformers are installed in many locations, the measurement by each voltage transformer The margin of error caused by the error must be increased
[0010] More precise sensing devices can also be used for this purpose, but there are limitations in terms of installation cost and technology in order to use more precise sensing devices

Method used

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  • A Deviation Compensation Method for Voltage Transformer
  • A Deviation Compensation Method for Voltage Transformer
  • A Deviation Compensation Method for Voltage Transformer

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Embodiment Construction

[0043] Some embodiments will be described in more detail below with reference to the accompanying drawings. In the following description, since the suffixes "module" and "unit" of components are given and interchanged for the convenience of making the present disclosure, they do not have different meanings or functions.

[0044] The effects and characteristics of the concept of the present invention, as well as its implementation method will become clear through the embodiments described below in conjunction with the accompanying drawings. However, one embodiment may be embodied in different forms, and the inventive concept should not be construed as limited to the embodiments described in detail herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. And, the concept of the present invention is only defined by the scope of the claims. Like symb...

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Abstract

A deviation compensation method of a voltage transformer is provided. The deviation compensation method includes: detecting the output voltage value of the first voltage transformer; checking the compensation value applied to the first voltage transformer; compensating the output voltage value according to the compensation value to measure the an actual voltage value at the location where the first voltage transformer is installed; verifying the validity of the measured actual voltage value; and resetting the offset compensator for measuring the actual voltage value based on the verification result of the validity of the actual voltage value.

Description

technical field [0001] The present invention relates to a voltage transformer, and in particular, to a voltage transformer deviation compensation capable of compensating deviations in voltage values ​​measured by a plurality of voltage transformers installed in a high voltage direct current (HVDC) power transmission system method. Background technique [0002] High-voltage direct current (HVDC) transmission refers to converting alternating current (AC) power generated at a power station into direct current power through a transmitting station to send direct current (DC) power, and then reconverting the DC power into AC power through a receiving station to provide AC electricity. [0003] DC transmission systems are used in submarine cable power transmission, large-scale long-distance power transmission, interconnection between AC systems, etc. In addition, the HVDC system enables the interconnection and asynchronous interconnection of different frequency systems. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/36
CPCG01R35/02H01F27/425H02P13/00G01R19/165G01R35/005G01R31/62H02J1/00H02M5/458G01R19/12
Inventor 崔用吉
Owner LSIS CO LTD