E3S Web Conf.
Volume 204, 20202020 International Conference of Recent Trends in Environmental Sustainability and Green Technologies (ICRTEG 2020)
|Number of page(s)||8|
|Section||Green Energy and Power Engineering|
|Published online||03 November 2020|
Research on the Principle of Residual Current Protection Technology Based on Transient Waveform Criterion
1 Lishui Power Supply Company, State Grid Zhejiang Electric Power Co. Ltd., Lishui 323000, Zhejiang Province, China
2 Lishui Power Industry Group Co.,Ltd, Lishui, 323000, China
* Corresponding author: email@example.com
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.
Key words: Transient waveform / residual current protection / low-pass filter
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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