Research on Broadband Modeling and Transmission Characteristics of CVT Under Impulse Voltage Excitation

LIU Kunxiong; LI Nan; ZHANG Xiaoqing; LI Jun; LIU Yao; REN Qiang; ZENG Xiangjun

doi:10.13296/j.1001-1609.hva.2026.04.015

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Research on Broadband Modeling and Transmission Characteristics of CVT Under Impulse Voltage Excitation

Research & Analysis | 更新时间：2026-04-08

- Research on Broadband Modeling and Transmission Characteristics of CVT Under Impulse Voltage Excitation
- High Voltage Apparatus Vol. 62, Issue 4, Pages: 132-142(2026)
- 作者机构：
  
  国网陕西电力科学研究院，西安 710100
  西安交通大学电气工程学院，西安 710049
  西安交通大学仪器科学与技术学院，西安 710049
- 作者简介：
- 基金信息：
  
  Science and Technology Foundation of State Grid Corporation of China(5700-202132199A-0-0-00)
- DOI：10.13296/j.1001-1609.hva.2026.04.015
  CLC：
- Received：30 September 2025，
  
  Revised：2025-11-24，
  
  Published：16 April 2026
- 稿件说明：
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LIU Kunxiong, LI Nan, ZHANG Xiaoqing, et al. Research on Broadband Modeling and Transmission Characteristics of CVT Under Impulse Voltage Excitation[J]. High Voltage Apparatus, 2026, 62(4): 132-142.
DOI：

LIU Kunxiong, LI Nan, ZHANG Xiaoqing, et al. Research on Broadband Modeling and Transmission Characteristics of CVT Under Impulse Voltage Excitation[J]. High Voltage Apparatus, 2026, 62(4): 132-142. DOI： 10.13296/j.1001-1609.hva.2026.04.015.

摘要

基于CVT的物理结构和工作原理，文中提出一种适用于MHz级的CVT宽频等效模型；以典型110 kV CVT为研究对象，给出了宽频模型元件参数的测量方法；结合实测参数，通过对比雷电冲击电压仿真与试验波形，验证了所提模型的正确性；最后，分析了影响CVT传递特性的关键因素，并通过定量的方法研究杂散参数变化对CVT传输特性的影响规律。所述宽频模型对于CVT谐波电压和暂态电压的测量具有重要意义，为CVT参数辨识和故障诊断提供理论依据。

Abstract

Based on the physical structure and operating principle of CVT

a broadband equivalent model of CVT suitable for MHz level is proposed in this paper. The typical 110 kV CVT is taken as the research object

and the measurement method of the component parameters of the broadband model is given. Based on the measured parameters

the correctness of the proposed model is verified by comparing the lightning impulse voltage simulation and test waveforms. Finally

the key factors affecting the transmission characteristics of CVT are analyzed

and the influence of stray parameters on the transmission characteristics of CVT is studied by quantitative method. The above-mentioned broadband model is of great significance for CVT harmonic voltage and transient voltage measurement and and provides theoretical bases for the parameter identification and fault diagnosis of CVT.

关键词

Keywords

references

陈东明,王建伟,李旸,等.电容式电压互感器典型故障及缺陷分析[J].电力电容器与无功补偿,2024,45(6):36-43.

CHEN Dongming,WANG Jianwei,LI Yang,et al. Analysis of typical faults and defects of capacitive voltage transformer[J]. Power Capacitor & Reactive Power Compensation,2024,45(6):36-43.

田浩,杨敏,陈小龙,等. 500 kV电容式电压互感器异常发热原因分析及预防措施[J].电力电容器与无功补偿,2025,46 (1):106-113.

TIAN Hao,YANG Min,CHEN Xiaolong,et al. Analysis on abnormal heating and preventive measures of 500 kV capacitor voltage transformer[J]. Power Capacitor & Reactive Power Compensation, 2025,46(1):106-113.

王欢,王忠东,卢树峰,等.基于误差状态模糊分析的电容式电压互感器内绝缘状态评价方法[J].电测与仪表,2024,61(4):73-80.

WANG Huan,WANG Zhongdong,LU Shufeng,et al. Internal insulation condition evaluation method for capacitor voltage transformer based on fuzzy analysis of error condition[J]. Electrical Measurement&Instrumentation,2024,61(4):73-80.

邢宇,徐云武,翟晓卉,等.计及一次电压波动影响的CVT内绝缘状态在线评估方法[J].电测与仪表,2025,62(6):102-110.

XING Yu,XU Yunwu,ZHAI Xiaohui,et al.On-line evaluation method of CVT internal insulation state consideringthe influence of primary voltage fluctuation[J]. Electrical Measurement & Instrumentation,2025,62(6):102-110.

赵彦林,周志新,何亮,等.一起电容式电压互感器二次电压异常故障分析[J].电力电容器与无功补偿,2025,46(1):114-120.

ZHAO Yanlin,ZHOU Zhixin,HE Liang,et al.Analysis of an abnormal secondary voltage of capacitive voltage transformer[J]. Power Capacitor & Reactive Power Compensation,2025,46(1):114-120.

刘朗旭,李振华,李振兴,等.电容式电压互感器谐波传递特性及预测方法[J/OL].南方电网技术:1-11[2025-09-30]. https://nfdwjs.csg.cn/gateway-web/zh/debutDetail.html?serialNum=20250516001.

LIU Langxu,LI Zhenhua,LI Zhenxing,et al.Harmonic transfer characteristics and prediction method of capacitive voltage transformer[J/OL]. Southern Power System Technology:1-11[2025-09 - 30].https://nfdwjs.csg.cn/gateway - web/en/debutDetail.html?serialNum=20250516001.

朱铁超,聂一雄,李哲,等.基于改进粒子群优化算法的CVT杂散电容参数估计方法[J]. 电力系统自动化,2020,44(4):178-186.

ZHU Tiechao,NIE Yixiong,LI Zhe,et al. Parameter estimation method of stray capacitance of capacitive voltage transformer based on improved particle swarm optimization algorithm[J]. Automation of Electric Power Systems,2020,44(4):178-186.

黄之笛,武霁阳,彭光强,等.基于多次谐波注入的CVT宽频传输特性测试研究[J]. 电力电容器与无功补偿,2025,46 (3):69-76.

HUANG Zhidi,WU Jiyang,PENG Guangqiang,et al.Research on wideband harmonic transmission characteristics test of CVT based on multi-harmonic injection[J]. Power Capacitor&Reactive Power Compensation,2025,46(3):69-76.

钟立华,潘峰,李金莉,等. 10 kV宽频直流电压互感器设计[J].南方电网技术,2024,18(11):31-37.

ZHONG Lihua,PAN Feng,LI Jinli,et al.Design of 10 kV wide frequency DC voltage transformer[J]. Southern Power System Technology,2024,18(11):31-37.

姚锡钦.一起110 kV电容式电压互感器二次电压异常的故障分析[J].变压器,2024,61(6):67-70.

YAO Xiqin.Fault analysis of secondary voltage anomaly of 110 kV capacitive voltage transformer[J]. Transformer,2024,61(6):67-70.

赵文华,王子乐,李秋阳,等.一起35 kV CVT电容分压器爆炸原因分析[J].电力电容器与无功补偿,2025,46(3),77-84.

ZHAO Wenhua,WANG Zile,LI Qiuyang,et al. Analysis on explosion of capacitor divider of 35 kV CVT[J]. Power Capacitor&Reactive Power Compensation,2025,46(3):77-84.

电能质量公用电网谐波:GB/T 14549—93[S].1994.

Quality of electric energy supply harmonics in public supply network:GB/T 14549—93[S].1994.

陈一悰,刘坤雄,张小庆,等.基于电容电流的谐波电压在线监测系统研制[J].智慧电力,2021,49(6):67-74.

CHEN Yicong, LIU Kunxiong, ZHANG Xiaoqing, et al. Development of voltage harmonics online measurement system based on capacitor current[J]. Smart Power,2021,49(6):67-74.

谢伟伦,黄志威,刘小沛.杂散电容对CVT谐波测量影响的处理方法研究[J].电力电容器与无功补偿,2020,41(2):59-63.

XIE Weilun,HUANG Zhiwei,LIU Xiaopei. Study on the processing method of influence of stray capacitance on CVT harmonic measurement[J]. Power Capacitor & Reactive Power Compensation,2020,41(2):59-63.

冯宇,王晓琪,陈晓明,等.电容式电压互感器电路参数对电网谐波电压测量的影响[J].中国电机工程学报,2014,34(28):4968-4975.

FENG Yu,WANG Xiaoqi,CHEN Xiaoming,et al. Influences of circuit parameters of capacitor voltage transformer on grid harmonic voltage measurements[J]. Proceedings of the CSEE, 2014,34(28):4968-4975.

王佼.电容式电压互感器主要参数对谐波传递特性的影响仿真分析[J].广西电力,2023,46(1):81-86.

WANG Jiao.Simulation analysis of the influence of main parameters of CVT on harmonic transmission characteristics[J]. Guangxi Electric Power,2023,46(1):81-86.

吴茂林,崔翔.电压互感器宽频特性的建模[J].中国电机工程学报,2003,23(10):1-5.

WU Maolin,CUI Xiang.Modeling of wide frequency characteristic of potential transformer[J]. Proceedings of the CSEE,2003,23 (10):1-5.

陈少伟,崔翔,由建,等.互感器宽频传递特性的散射参数测量法[J].电气应用,2006(2):22-24.

CHEN Shaowei,CUI Xiang,YOU Jian,et al. Scattering parameter measurement for broadband transfer characteristics of transformers[J]. Electrical Applications,2006(2):22-24.

张广勇. 1 000 kV电容式电压互感器宽频等效电路建模和应用研究[D].北京:华北电力大学,2017.

ZHANG Guangyong.Research on wideband equivalent circuit modeling and application of 1 000 kV capacitive voltage transformer[D]. Beijing:North China Electric Power University,2017.

梁贵书,杜欣宇,谢宇廷,等.电容式电压互感器的宽频无源电路模型[J].高电压技术,2016,42(1):179-185.

LIANG Guishu,DU Xinyu,XIE Yuting,et al.Broadband passive circuit model of capacitor voltage transformer[J]. High Voltage Engineering,2016,42(1):179-185.

司马文霞,王惠,杨鸣,等.考虑中间变压器饱和特性的电容式电压互感器宽频非线性模型[J].中国电机工程学报,2021,41(14):5034-5043.

SIMA Wenxia,WANG Hui,YANG Ming,et al.Wideband and nonlinear model of capacitive voltage transformer considering the saturation of intermediate transformer[J]. Proceedings of the CSEE, 2021,41(14):5034-5043.

陈一悰,赵壮民,李军浩.冲击电压下CVT传递特性及其缺陷故障检测研究[J].智慧电力,2022,50(8):89-94.

CHEN Yicong,ZHAO Zhuangmin,LI Junhao.CVT voltage transfer characteristics under impulse voltage&its fault detection[J]. Smart Power,2022,50(8):89-94.

STUMBERGER G,POLAJZER B,STUMBERGER B,et al.Evaluation of experimental methods for determining the magnetically nonlinear characteristics of electromagnetic devices[J]. IEEE Transactions on Magnetics,2005,41(10):4030-4032.

王惠.考虑中间变压器饱和特性的电容式电压互感器宽频非线性模型[D].重庆:重庆大学,2021.

WANG Hui.Wideband nonlinear model of capacitive voltage transformer considering the saturation characteristics of the intermediate transformer[D]. Chongqing:Chongqing University, 2021.

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