Calibration Model for ±800 kV DC Divider

WANG Qi; TAN Bingyuan; LIU Qingsong; WU Ying; LUO Lei

doi:10.13296/j.1001-1609.hva.2017.12.027

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Calibration Model for ±800 kV DC Divider

更新时间：2025-04-26

- Calibration Model for ±800 kV DC Divider
- High VoltageApparatus Vol. 53, Issue 12, Pages: 163-167(2017)
- 作者机构：
  
  中国南方电网有限责任公司超高压输电公司检修试验中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.12.027
  CLC： TM721.1
- Published：2017
- 稿件说明：
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[1]王奇,谭炳源,刘青松,吴瀛,罗磊.±800 kV直流分压器校准分析计算模型研究与应用[J].高压电器,2017,53(12):163-167.

WANG Qi, TAN Bingyuan, LIU Qingsong, et al. Calibration Model for ±800 kV DC Divider[J]. High voltageapparatus, 2017, 53(12): 163-167.
[1]王奇,谭炳源,刘青松,吴瀛,罗磊.±800 kV直流分压器校准分析计算模型研究与应用[J].高压电器,2017,53(12):163-167. DOI： 10.13296/j.1001-1609.hva.2017.12.027.

WANG Qi, TAN Bingyuan, LIU Qingsong, et al. Calibration Model for ±800 kV DC Divider[J]. High voltageapparatus, 2017, 53(12): 163-167. DOI： 10.13296/j.1001-1609.hva.2017.12.027.

摘要

直流分压器是特高压直流输电系统中不可缺少的主设备

其采集数据的准确性对电网的安全稳定运行至关重要。基于直流分压器的工作原理

分析致使直流分压器分压比变化的主要因素

通过数学公式直观的诠释分压比的不确定性

然后在研究分压比不确定性的基础上构建直流分压器校准分析计算模型

并试验证明了该模型对站用±800 kV直流分压器的校准水平高达10

-5

-6

量级

大幅度提升了直流分压器量值测量的准确度。

Abstract

To improve the data acquisition accuracy of a DC voltage divider in UHVDC transmission system

the main factors influencing the voltage division ratio of the DC divider are analyzed according to its working principle.The uncertainty of the voltage division ratio is explained via mathematical formula.On the basis of studying the uncertainty of the partial pressure ratio

a calibration model of DC voltage divider is constructed.Test proves that the calibration level of the ±800 kV DC voltage divider is up to 10

-5

-6

which means a significant improvement in the measurement accuracy of the DC voltage divider.

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