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電力配電網における段階的な発生源の位置識別スキーム観測能力が極めて低い場合

Xi Zhang¹, Jianyong Zheng^1,2, Fei Mei³

¹School of Cyber Science and Engineering, Southeast University, Nanjing 211189, China.

Sensors (Basel, Switzerland)

|August 28, 2025

まとめ

この研究は,電流配電網 (PDN) の電圧測定偏差 (VMD) を使用した新しい段階的なイベント源位置識別 (ESLI) スキームを導入します. この方法は,最小限のセンサー展開でも正確な故障位置と電流計算を達成します.

科学分野:

電気工学
電力システムの分析

背景:

シンクロファザー測定技術は,電力配電ネットワーク (PDN) の可視性を向上させます.
測定装置の高いコストは,システムの観測可能性とイベントソース位置識別 (ESLI) の正確さを制限します.
現存するESLI方法は,観測能力の低い条件下で課題に直面しています.

研究の目的:

非常に低い可視性を持つPDNのための費用対効果の高い段階的なESLIスキームを提案する.
最小限の測定装置で高精度のESLIとイベント電流計算を実現する.
正確なイベントソースのローカライゼーションのための電圧測定偏差 (VMD) ベースのアルゴリズムを開発する.

主な方法:

電圧測定偏差 (VMD) に基づく段階的なESLIスキームが提案されています.
仮想イベント電流注入 (VCI) を使用したESLIモデルは,ターミナルバス電圧と出力電流を導出するために構築されます.
VMDベースの段階的なESLIアルゴリズムは,秩序的かつ正確なイベントソース検索のために開発されています.

主要な成果:

提案されたVMDベースの段階的なESLIスキームは,高精度のESLIとイベント電流の解決を実現します.
この方法は,非常に低い可視性条件下での有効性を証明しています.
IEEE 33バスのテストシステムでの実験結果は,最先端の方法よりも性能が著しく改善されていることを示しています.

結論:

開発されたVMDベースの段階的なESLIアルゴリズムは,PDNにおけるイベントソースの位置を特定するための非常に正確で費用対効果の高いソリューションを提供します.
このスキームは,センサーの展開が限られているシナリオでは特に有効です.
このアプローチは,PDNのイベント管理と対応能力を大幅に高めます.

キーワード:

イベントソースの位置識別段階的なローカライゼーション・スキームシンクロファザー測定仮想イベント電流の注入電圧測定の偏差

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