Harmonic Response Characteristics of Loss Current in 10 kV XLPE Cables under Conductor Spike Defects
導体スパイク欠陥を有する10 kV XLPEケーブルの損失電流の高調波応答特性 (AI 翻訳)
Yang X, guo g, xi z, chen c
🤖 gxceed AI 要約
日本語
本研究では、再生可能エネルギー発電所で広く使用される10 kV XLPEケーブルにおいて、導体スパイク欠陥が引き起こす損失電流の高調波特性をシミュレーションと実験で解析。欠陥による電界歪みが高調波（主に3次、5次）を発生させ、欠陥の程度や位置に応じて歪み率が変化することを示した。損失電流の高調波分析がケーブル絶縁診断に有効であることを実証。
English
This study investigates harmonic characteristics of loss current in 10 kV XLPE cables with conductor spike defects, using simulation and experiments. Results show that defects cause local electric-field distortion, generating higher-order harmonics (mainly 3rd and 5th), with distortion levels increasing with defect severity. Defects at the conductor core cause more distortion. Harmonic analysis is validated as a feasible diagnostic method for cable insulation.
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
本論文は、再生可能エネルギー発電所のケーブル保守に直接関わる。日本では老朽化した再エネ設備の増加に伴い、予防保全技術への関心が高まっている。非破壊診断手法としての高調波分析は、現場適用が期待される。
In the global GX context
This paper addresses cable diagnostics critical for the reliability of renewable energy infrastructure. Globally, as renewable energy expands, preventive maintenance of cables becomes essential to avoid downtime. Harmonic analysis offers a practical approach for detecting insulation defects, relevant to utilities and asset managers worldwide.
👥 読者別の含意
🔬研究者:Provides experimental validation of harmonic analysis for cable defect detection, offering a method for further study in insulation diagnostics.
🏢実務担当者:Provides a diagnostic technique for detecting conductor spike defects in XLPE cables, applicable to maintenance of renewable energy station cables.
📄 Abstract（原文）
Cables are widely used in renewable-energy stations, and the reliable assessment of their insulation condition is essential for safe and stable system operation. In this study, the harmonic characteristics of the loss current in 10 kV XLPE cables containing conductor spike defects were investigated through simulation and experimental analysis. Based on the bipolar charge transport model, the nonlinear conductivity behavior of XLPE under high electric fields was analyzed, and the effects of tip curvature radius, defect location, and electrode spacing on the loss current and conductivity characteristics were evaluated. The results show that conductor spike defects cause severe local electric-field distortion, which induces periodic fluctuations in insulation conductivity and distorts the loss-current waveform, leading to the appearance of higher-order harmonics. The harmonic components are dominated by the 3rd and 5th harmonics, and their contribution ratios vary with defect severity and location. As the defect becomes more severe, the amplitude and total harmonic distortion of the loss current, as well as the conductivity distortion rate, all increase significantly. Moreover, defects located at the conductor core produce higher distortion levels than those located at the shielding layer. Experimental results confirm the simulation findings, indicating that loss-current harmonic analysis is a feasible approach for detecting and evaluating conductor spike defects in 10 kV XLPE cables.
🔗 Provenance — このレコードを発見したソース
- Research Square https://doi.org/10.22541/authorea.15005768/v1first seen 2026-07-10 04:42:53
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