Adaptive notch filter: An alternative synchronizer for effective performance of active power filter under challenging grid conditions
適応ノッチフィルタ:困難なグリッド条件におけるアクティブパワーフィルタの効果的な性能のための代替同期方式 (AI 翻訳)
Hoon, Yap, Chew, Kuew Wai, Chu, Kenny Sau Kang, Noor, Siti Zaliha Mohammad
🤖 gxceed AI 要約
日本語
本論文は、再生可能エネルギーや電気自動車の普及に伴う高調波問題に対し、適応ノッチフィルタ(ANF)を用いた系統同期手法を提案。シミュレーションにより、従来手法より低い高調波歪み(2.71~2.82%)と高い基本波電流精度(94.48~97.21%)を達成し、力率をほぼ1に改善することを示した。
English
This paper proposes an adaptive notch filter (ANF)-based synchronizer for shunt active power filters to mitigate harmonic distortion caused by renewable energy and EV integration. Simulations show lower total harmonic distortion (2.71-2.82%) and higher fundamental current accuracy (94.48-97.21%) compared to existing methods, improving power factor to near unity.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では再生可能エネルギーの大量導入に伴い系統の高調波問題が顕在化しており、本手法はパワーコンディショナやEV充電器の制御に応用可能。ただし、実系統での検証が必要。
In the global GX context
As grids worldwide integrate more renewables and EVs, power quality becomes critical. This ANF-based synchronizer offers a cost-effective solution for harmonic mitigation, relevant for TSOs, DSOs, and inverter manufacturers aiming for grid code compliance.
👥 読者別の含意
🔬研究者:Introduces a novel synchronizer for active power filters that could be extended to other grid-connected converters.
🏢実務担当者:Provides a simulation-validated method to improve power factor and reduce harmonics, potentially lowering operational costs and equipment wear.
📄 Abstract(原文)
Harmonic distortion issues on modern power systems are becoming highly significant due to the increasing integration of renewable energy sources, electric vehicles, and smart technologies. These distortions, mainly caused by the operation of power electronics devices, potentially degrade overall system quality, increase losses, and shorten equipment lifespan if they are not properly mitigated. Shunt active power filters (SAPFs) are found to be most effective against current harmonics issues, but their performance strictly depends on accurate grid synchronization. In this paper, an alternative method developed based on the adaptive notch filter (ANF) concept is proposed for reliable grid synchronization under challenging conditions. The proposed ANF-based synchronizer is modelled in MATLAB/Simulink and benchmarked against the existing self-tuning filter (STF) method under four cases involving sinusoidal, distorted, noisy, and distortion-with-noise grid conditions. Simulation findings demonstrate that the proposed method enables the connected SAPF to effectively mitigate harmonics by providing low total harmonic distortions (2.71% to 2.82%) and minimal phase deviation (0.2° to 0.5°), while maintaining the accuracy of fundamental current between 94.48% to 97.21%. As a result, the overall power factor of the system is raised to near unity, confirming the ability of the proposed ANF-based method to serve as a better alternative for SAPF synchronization.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/20628588first seen 2026-06-11 04:32:47
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