冲击电压激励下的CVT宽频建模及传输特性研究
Research on Broadband Modeling and Transmission Characteristics of CVT Under Impulse Voltage Excitation
- 高压电器 2026年62卷第4期 页码：132-142
- 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：
刘坤雄（1988—），男，硕士，高级工程师，主要从事互感器在电能质量测量中的应用研究（E-mail：liukunxiong123@163.com）。
曾翔君（1976—），男，博士，教授，主要研究方向为电气工程（通信作者）（E-mail：zengxj@xjtu.edu.cn）。
- 基金信息：国家电网公司科技项目(5700-202132199A-0-0-00)
DOI：10.13296/j.1001-1609.hva.2026.04.015
中图分类号：收稿：2025-09-30，
修回：2025-11-24，
纸质出版：2026-04-16
- 稿件说明：
移动端阅览
刘坤雄, 李楠, 张小庆, 等. 冲击电压激励下的CVT宽频建模及传输特性研究[J]. 高压电器, 2026,62(4):132-142.
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.
刘坤雄, 李楠, 张小庆, 等. 冲击电压激励下的CVT宽频建模及传输特性研究[J]. 高压电器, 2026,62(4):132-142. DOI： 10.13296/j.1001-1609.hva.2026.04.015.
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
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