Modifying the Windings of HFCT Restrain Magnetic Saturation and Harmonics Interference

Jiann Fuh Chen, Yung Jui Hsu, Yu Hsun Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ferrite core design for HFCT sensor uses the small signal current sampling as the basis. The non-linear loads, such as system unbalance or interphase ground fault, produces considerable harmonic induction, thus leading to magnetic saturation of the ferrite core. The aliasing of high and low frequency signals distorts the extracted waveform or damages the HFCT. To address the above problem, this study used sensors to improve two sets of windings, whereby the forward winding and backward winding were connected in series in the coil position. As the low frequency signal neutralized the increase of induced potential through the backward winding loop path, the low frequency response hazard generated was reduced by a low frequency signal. The experimental results showed that the unmodified sensor correlation coefficient quantized value R=0.94137 was positively correlated, which validates the excellent ability to suppress magnetic saturation and harmonic interference.

Original languageEnglish
Title of host publicationProceedings - 2020 International Workshop on Electromagnetics
Subtitle of host publicationApplications and Student Innovation Competition, iWEM 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728199894
DOIs
Publication statusPublished - 2020 Aug 26
Event2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2020 - Penghu, Taiwan
Duration: 2020 Aug 262020 Aug 28

Publication series

NameProceedings - 2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2020

Conference

Conference2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2020
CountryTaiwan
CityPenghu
Period20-08-2620-08-28

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Instrumentation

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