Performance Analysis on Current-voltage Converter Based on PCB Air-core Coil

CHEN Zhu-hua1; LI Xiao2; ZHOU You-qing2; PENG Chun-yan2; WANG Guo-hua2; ZHOU Cheng-lin2

doi:10.13296/j.1001-1609.hva.2010.03.017

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Performance Analysis on Current-voltage Converter Based on PCB Air-core Coil

更新时间：2025-04-26

- Performance Analysis on Current-voltage Converter Based on PCB Air-core Coil
- High VoltageApparatus Vol. 46, Issue 3, Pages: 79-82+91(2010)
- 作者机构：
  
  1. 长沙电力职业技术学院
  2. 湖南大学电气与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.03.017
  CLC： TM46
- Published：2010
- 稿件说明：
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[1]陈铸华,李晓,周有庆,彭春燕,王国华,周成林.PCB空心线圈电流变换器性能分析[J].高压电器,2010,46(03):79-82+91.

CHEN Zhu-hua1, LI Xiao2, ZHOU You-qing2, et al. Performance Analysis on Current-voltage Converter Based on PCB Air-core Coil[J]. High voltageapparatus, 2010, 46(3): 79-82+91.
[1]陈铸华,李晓,周有庆,彭春燕,王国华,周成林.PCB空心线圈电流变换器性能分析[J].高压电器,2010,46(03):79-82+91. DOI： 10.13296/j.1001-1609.hva.2010.03.017.

CHEN Zhu-hua1, LI Xiao2, ZHOU You-qing2, et al. Performance Analysis on Current-voltage Converter Based on PCB Air-core Coil[J]. High voltageapparatus, 2010, 46(3): 79-82+91. DOI： 10.13296/j.1001-1609.hva.2010.03.017.

摘要

当前微机保护装置以及电子式电能表采用的都是传统的带铁芯的电流变换器

传统的电流变换器存在磁饱和问题

因此测量动态范围窄。提出的PCB空心线圈电流变换器二次线圈采用对称设计

以保证最大限度地消除外界电磁干扰造成的误差。对影响电流变换器测量准确度的各种因素进行了分析

提出了改进措施和办法。制作了样机进行了实验验证

结果表明:PCB电流变换器达到了一定的测量准确度

在较大的动态范围内具有良好线性度

且响应速度快。

Abstract

At present

most of mirco-chip based relay protection systems and electronic electric-meters adopted traditional magnetic core current transducer.However

this kind current-voltage converter had serious magnetic saturate problem in the application and its dynamic metering range was narrow.This paper proposed a PCB style current-voltage converter

which had four symmetrical secondary spiral air-core coils on the same surface and could eliminate impacts caused by outside magnetic field as possible.All kinds of interference in the current-voltage converter were presented and analyzed;some measures to improve capabilities against interference were suggested.At last

a prototype of PCB current-voltage converter was made and tested.The experiment data indicate that the PCB converter has reached the requirement and has good linearity in a large dynamic metering band with fast dynamic response.

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