The Harmonic Filtering Method of Distribution Network Based on Harmonic Energy Extraction

The loads such as the power-electronics-based inverters induce many fifth and seventh harmonics in the low-voltage distribution network. Traditional active filtering solutions suffer from drawbacks such as high equipment costs, significant operational losses, and utilization of network resources. Th...

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Bibliographic Details
Published in2023 3rd International Conference on New Energy and Power Engineering (ICNEPE) pp. 215 - 221
Main Authors Xu, Haifeng, Cai, Jidong, Jin, Gang, Qiu, Tianjia, Wang, Fei, Huang, Ziying, Jiang, Qirong, Zhang, Jian
Format Conference Proceeding
LanguageEnglish
Published IEEE 24.11.2023
Subjects
Capacitors
distribution network
Distribution networks
Filtering
Harmonic analysis
harmonic energy extraction
harmonic filter
Power harmonic filters
power quality
Voltage control
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Summary:The loads such as the power-electronics-based inverters induce many fifth and seventh harmonics in the low-voltage distribution network. Traditional active filtering solutions suffer from drawbacks such as high equipment costs, significant operational losses, and utilization of network resources. Therefore, this paper proposes a novel scheme based on harmonic energy extraction, which adopts low-impedance harmonic channels to extract harmonic energy, store it and then convert it into power for a grid-tied generation, to feed the harmonic energy back to the grid. The proposed scheme's principles were validated through simulations, and a harmonic energy extraction device for harmonic removal was developed. The on-site operation results demonstrate its significant energy-saving effects and favorable comprehensive benefits, providing a new option for harmonic control.
DOI:10.1109/ICNEPE60694.2023.10429246