Study on the Influence of Environmental Factors on Harmonic Transfer Characteristics of CVT

ZHU Tiechao; NIE Yixiong; PENG Dan

doi:10.14044/j.1674-1757.pcrpc.2020.01.021

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Study on the Influence of Environmental Factors on Harmonic Transfer Characteristics of CVT

更新时间：2024-09-14

- Study on the Influence of Environmental Factors on Harmonic Transfer Characteristics of CVT
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 1, Pages: 123-128(2020)
- 作者机构：
  
  广东工业大学自动化学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.01.021
  CLC： TM451
- Published：2020，
- 稿件说明：
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[1]朱铁超,聂一雄,彭丹.环境因素对CVT谐波传变特性的影响研究[J].电力电容器与无功补偿,2020,41(01):123-128.

ZHU TIECHAO, NIE YIXIONG, PENG DAN. Study on the Influence of Environmental Factors on Harmonic Transfer Characteristics of CVT. [J]. Power capacitor & reactive power compensation, 2020, 41(1): 123-128.
[1]朱铁超,聂一雄,彭丹.环境因素对CVT谐波传变特性的影响研究[J].电力电容器与无功补偿,2020,41(01):123-128. DOI： 10.14044/j.1674-1757.pcrpc.2020.01.021.

ZHU TIECHAO, NIE YIXIONG, PENG DAN. Study on the Influence of Environmental Factors on Harmonic Transfer Characteristics of CVT. [J]. Power capacitor & reactive power compensation, 2020, 41(1): 123-128. DOI： 10.14044/j.1674-1757.pcrpc.2020.01.021.

摘要

为获取运行环境因素对电容式电压互感器（capacitor voltage transformer

CVT）谐波传变特性的影响

本文建立35 kV电容式电压互感器的高频等效模型

采用等效变换法进行传递函数的简化求解;在不同环境因素变化下

理论分析环境因素变化对CVT内部结构产生的影响。并基于Matlab仿真平台

仿真分析环境变化下CVT传变特性变化规律。发现环境温度和频率对CVT谐波传变特性都会产生影响

且对CVT的谐波传变比影响较大

温度主要影响CVT补偿电抗器电感值、主电容值、杂散电容值;频率偏移主要导致CVT输出偏移

从而影响CVT谐波传变特性。

Abstract

For obtaining the influence of operation environment factors on the harmonic transfer characteristics of capacitive voltage transformer（CVT）

the high-frequency equivalent model of 35 kV capacitive voltage transformer is set up

and the equivalent transformation method is used for simplified solution of transfer function.Under the variation of different environmental factors

the influence of environmental factor on the internal structure of CVT is analyzed theoretically.The variation law of CVT transfer characteristics under environmental changes is simulated and analyzed on the basis of Matlab simulation platform.It is found that both ambient temperature and frequency can have influence on the harmonic transfer characteristics of CVT and the influence on the harmonic transfer ratio of CVT is bigger.The temperature mainly affects the inductance value

main capacitance value and stray capacitance value of CVT compensation reactor.The frequency shift mainly causes the output deviation of CVT

which affects the harmonic transfer characteristics of the CVT.

关键词

电容式电压互感器环境变化温度频率传变特性

Keywords

CVTenvironmental changetemperaturefrequencytransfer characteristics

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