| Issue |
E3S Web Conf.
Volume 204, 2020
2020 International Conference of Recent Trends in Environmental Sustainability and Green Technologies (ICRTEG 2020)
|
|
|---|---|---|
| Article Number | 02009 | |
| Number of page(s) | 8 | |
| Section | Green Energy and Power Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202020402009 | |
| 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: 663597309@qq.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
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