Research on the Principle of Residual Current Protection Technology Based on Transient Waveform Criterion

The paper uses a magnetic modulation current transformer method to detect transient waveform residual currents containing pulsating DC components and even smooth DC components. At the same time, it uses IIR-based digital low-pass filters to filter the collected signals, which improves Filtering accu...

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Bibliographic Details
Published inE3S web of conferences Vol. 204; p. 2009
Main Authors Guolei, Xiao, Yan, Song, Juwei, Ye, Chengcong, Lv, Binfeng, Wu, Feng, Jiang, Weidong, Jin
Format Journal Article
LanguageEnglish
Published EDP Sciences 01.01.2020
Subjects
low-pass filter
residual current protection
transient waveform
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Summary:The paper uses a magnetic modulation current transformer method to detect transient waveform residual currents containing pulsating DC components and even smooth DC components. At the same time, it uses IIR-based digital low-pass filters to filter the collected signals, which improves Filtering accuracy. The software design is based on the floating-point DSP-TMS320F28335, which realizes the accurate sampling and analysis of the transient waveform residual current, and the transient waveform residual current detection meets the standard requirements.
ISSN:2267-1242
2267-1242
DOI:10.1051/e3sconf/202020402009