電気・熱・水力結合シミュレーションに基づくXLPE海底ケーブルの熱性能と経済効率に関する分析
Minquan Ye1, Yue Zhang2, Huiying Wu2
1State Grid Fujian Economic Research Institute, Fuzhou, 350013, China. hdymq2014@163.com.
Scientific reports
|February 17, 2026
まとめ
地上の条件は,海底ケーブルの性能に大きな影響を与えます. 土壌の熱伝導性と敷設深さを最適化することで,220kVのXLPEケーブルの熱管理と経済効率が向上します.
科学分野:
- 電気工学 電気工学とは
- ジオテクニカルエンジニアリング ジオテクニカルエンジニアリング
- 熱工学は,熱工学である.
背景:
- 海底ケーブルの断熱は,動作温度が限界値を超えると劣化します.
- 地上の条件は熱伝送に重大な影響を及ぼし,ケーブルの温度と経済的生存可能性に影響を与えます.
研究 の 目的:
- 220 kVのAC XLPE海底ケーブルの熱性能と経済効率に対する地上条件の影響を調査する.
- 敷設の深さ,初期温度,土壌の熱伝導性,そして浸透性の影響を分析する.
主な方法:
- 電磁場,熱場,および毛穴の水流域を統合した結合有限要素モデルを開発した.
- 様々な地面パラメータの影響を評価するためのパラメータ研究を実施しました.
主要な成果:
- 導体温は,敷き深さ,初期温度に伴い上昇し,土壌の熱伝導性に伴って低下する.
- 土壌の浸透性 (> 10^-11 m^2) が高くなると,導電器の温度が低下する.
- 敷き深さの増加は,温度上昇を悪化させる.
結論:
- 経済効率の向上には,熱伝導性が高い土壌を使用するか,敷設の深さを減らす必要があります.
- 土壌の浸透性を通じて費用対効果を向上させることは,10^-11 m^2.2.以上でのみ有益である.
- 熱性能は,地表の特性と直接関連しています.
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