Identification Method of Equivalent Circuit Parameters of CVT

FANG Wentian; NIE Yixiong

doi:10.14044/j.1674-1757.pcrpc.2021.06.016

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Identification Method of Equivalent Circuit Parameters of CVT

更新时间：2024-09-14

- Identification Method of Equivalent Circuit Parameters of CVT
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 6, Pages: 110-114(2021)
- 作者机构：
  
  1. 广东电网有限责任公司揭阳供电局
  2. 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.2021.06.016
  CLC： TM451.2
- Published：2021，
- 稿件说明：
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FANG WENTIAN, NIE YIXIONG. Identification Method of Equivalent Circuit Parameters of CVT. [J]. Power capacitor & reactive power compensation, 2021, 42(6): 110-114.
DOI：

FANG WENTIAN, NIE YIXIONG. Identification Method of Equivalent Circuit Parameters of CVT. [J]. Power capacitor & reactive power compensation, 2021, 42(6): 110-114. DOI： 10.14044/j.1674-1757.pcrpc.2021.06.016.

摘要

为了实现对电容式电压互感器(CVT)谐波传递模型的定量分析

文章提出了一种CVT等效电路参数的识别方法。该方法通过测量CVT频率响应

建立起了关于CVT等效电路参数的非线性方程

并利用高斯-牛顿法实现了非线性方程的求解。根据CVT的实际参数

利用MatlabSimulink平台搭建了CVT等效电路

并设计了验证该方法性能的实验方案。仿真实验结果表明

该方法能够克服测量误差的影响

具有可行性和较高的应用价值。

Abstract

For achieving the quantitative analysis of harmonic transfer model of capacitor voltage transformer（CVT）

a kind of identification method of equivalent circuit parameters of CVT is proposed in this paper.By measuring the frequency response of CVT with the method

the non-linear equation of equivalent circuit parameters of the CVT is set up and solution of the non-linear equation is achieved by using the Gauss-Newton method. The equivalent circuit of the VCT is set up in accordance with actual parameters of the CVT and by the use of Matlab-Simulink platform

and the the experimental scheme for verifying performance of the method is designed. The simulation results show that the method can overcome the influence of measurement error

has high feasibility and application value.

关键词

电容式电压互感器频率响应高斯-牛顿法测量误差

Keywords

CVTfrequency responseGauss-Newton methodmeasurement error

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