换流站直流电子式电压互感器现场校准方法研究与工程应用
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作者:
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朱梦梦(1986),男,博士研究生,高级工程师,主要从事交、直流互感器检测与故障诊断技术研究;Email:396923800@qq.com

中图分类号:

TM89

基金项目:

国家自然科学基金(51667010,51807084)


Research and application of field calibration method for the DC electronic voltage transformer in converter stations
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    摘要:

    由于缺乏相应试验设备、关键技术及检测规程,目前应用较为广泛的直流电子式电压互感器现场准确度校准试验未充分开展。在此背景下,首先分析其原理、传变机理及误差源,再针对换流站合并单元无同步信号端口接入的情况,提出一种异地同步现场校准方案,并开展了高准度的现场校准系统研制及不确定度分析。最后,将所提方法应用于永富直流工程现场进行工程验证,该案例可为中国换流站直流电子式电压互感器现场校验提供参考依据。

    Abstract:

    Due to the lack of corresponding test equipment, key technologies and test procedures, the field accuracy calibration test is not fully carried out for the DC electronic voltage transformer (DCEVT) which is widely used in the power grid at present. Under this circumstance, its theory, transmission mechanism and error source are completely analyzed firstly. Then, for the fact that there is no synchronous signal port accessing in the converter station merging unit. A scheme of synchronous field calibration in different places is proposed, and the development of high accuracy field calibration system and uncertainty analysis is carried out. The proposed method is verified in Yongfu DC project, which provides a reference for the field calibration of DC electronic voltage transformer in converter station in China.

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朱梦梦,朱全聪,束洪春,等.换流站直流电子式电压互感器现场校准方法研究与工程应用[J].电力科学与技术学报,2020,35(3):179-184.
ZHU Mengmeng, ZHU Quancong, SHU Hongchun, et al. Research and application of field calibration method for the DC electronic voltage transformer in converter stations[J]. Journal of Electric Power Science and Technology,2020,35(3):179-184.

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  • 在线发布日期: 2020-09-14
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