On-line Monitoring System for ±1 100 kV DC Voltage Transformer

LI Kun; SHAO Mingxin; WANG Benjin; WU Shipu; XU Si’en; ZHANG Chuanji

doi:10.13296/j.1001-1609.hva.2017.06.001

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On-line Monitoring System for ±1 100 kV DC Voltage Transformer

更新时间：2025-04-26

- On-line Monitoring System for ±1 100 kV DC Voltage Transformer
- High VoltageApparatus Vol. 53, Issue 6, Pages: 1-7(2017)
- 作者机构：
  
  1. 华中科技大学电气与电子工程学院
  2. 中国电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.06.001
  CLC： TM451
- Published：2017
- 稿件说明：
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[1]李坤,邵明鑫,汪本进,吴士普,徐思恩,张传计.±1100kV直流电压互感器在线监测系统研究[J].高压电器,2017,53(06):1-7.

LI Kun, SHAO Mingxin, WANG Benjin, et al. On-line Monitoring System for ±1 100 kV DC Voltage Transformer[J]. High voltageapparatus, 2017, 53(6): 1-7.
[1]李坤,邵明鑫,汪本进,吴士普,徐思恩,张传计.±1100kV直流电压互感器在线监测系统研究[J].高压电器,2017,53(06):1-7. DOI： 10.13296/j.1001-1609.hva.2017.06.001.

LI Kun, SHAO Mingxin, WANG Benjin, et al. On-line Monitoring System for ±1 100 kV DC Voltage Transformer[J]. High voltageapparatus, 2017, 53(6): 1-7. DOI： 10.13296/j.1001-1609.hva.2017.06.001.

摘要

特高压直流电压互感器承担着连接一次侧输电线路和二次侧控制保护装置的重要任务

其工作状态直接影响到整个直流输电系统的运行性能

而在线监测则是直流互感器运行维护的重要手段。现场运行经验表明:雷电干扰、互感器闪络和电容击穿故障是影响直流电压互感器工作状态的主要因素。文中通过仿真分析与实际测量相结合

对上述3种在线监测特征量进行分析

设计了包括多传感器多特征量提取模块

故障波形存储及判别模块在内的±1 100 kV直流电压互感器在线监测系统

并对所设计窄带型空心线圈传感器进行了暂态性能测试

实测波形与标准相吻合。

Abstract

UHVDC voltage transformer connects the primary transmission line and the control protection devices on secondary side.Its working state directly affects the operation performance of UHVDC system.So on-line monitoring is important for UHVDC voltage transformer ’ operation and maintenance.The experience from field operation shows that lightning disturbance

transformer flashover and capacitor breakdown are the key factors affecting the working condition of UHVDC voltage transformer.In this study

simulation and measurement are adopted to analyze the above three monitoring features

and a ±1 100 kV DC voltage transformer on-line monitoring system

including a multi-sensor and multi-feature extraction module and a fault waveforms storage and judgment module

is designed.Moreover

the transient performance of the designed air-core coil sensor is tested

and the measured waveform agrees well with the standard one.

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