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表面磁場センサーに基づく単相接地断層トランジントの下の10kV3コアケーブルのフェーズ選択方法
Hang Wang1, Tianhu Weng1, Wenfang Ding1
1Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment, Hubei University of Technology, Wuhan 430068, China.
Sensors (Basel, Switzerland)
|February 13, 2026
まとめ
この研究は,10 kVのベルト付きケーブルで単相接地障害が発生する特定の相を識別するために磁気センサーを使用する新しい方法を導入しています. この技術は,都市電力配送ネットワークにとって極めて重要な故障した段階を正確に区別します.
科学分野:
- 電気工学 電気工学とは
- パワーシステム パワーシステム
- センサー技術 センサー技術
背景:
- シングルフェーズ接地障害は,都市電力配電において一般的です.
- 既存のセンサーは,磁気流が変化しないため,ベルト付きケーブルの故障相を特定するのに苦労しています.
- 10kVのベルト付きケーブルは,配送ネットワークで一般的です.
研究 の 目的:
- 単相接地故障時に10kVベルト付きケーブルの故障相を区別するための方法を開発する.
- 伝統的な鉄磁性ゼロシーケンスの電流センサーの限界を克服するために.
主な方法:
- 環状トンネル磁気抵抗 (TMR) の磁気センサー配列を使用した2段階の方法論.
- ケーブル表面の6つの点で磁場強度を測定する.
- 微分進化アルゴリズムを使用して回転角度を計算し,磁場強度の差異を介して故障相を特定します.
主要な成果:
- 提案された方法は,回転角度を計算する際に1%未満の相対的な誤差を達成しました.
- シングルフェーズ接地故障トランジエントの下で故障した相の正確な識別が実証されました.
- シミュレーションと実験検証の両方による検証が成功しました.
結論:
- 開発された方法論は,単相接地故障時に10kVの3コアベルト付きケーブルの故障した相を効果的に識別します.
- このアプローチは,電力配電システムにおける重要なエンジニアリング応用価値を提供します.
- このセンサーベースのテクニックは,故障相差別に対する信頼性の高いソリューションを提供します.
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