Effect of Electro-thermal-mechanical Multi-physics Aging on the Insulation Performance of 500 kV DC XLPE Cables

LIU Jiahao; PENG Weilong; YU Jincheng; ZHANG Lei; SONG Jiale; ZHANG Tianyin; CHEN Xiangrong

doi:10.13296/j.1001-1609.hva.2026.10.019

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Effect of Electro-thermal-mechanical Multi-physics Aging on the Insulation Performance of 500 kV DC XLPE Cables

Research & Analysis | 更新时间：2026-10-14

- Effect of Electro-thermal-mechanical Multi-physics Aging on the Insulation Performance of 500 kV DC XLPE Cables
- High Voltage Apparatus Vol. 62, Issue 10, Pages: 168-174(2026)
- 作者机构：
  
  浙江大学电气工程学院，杭州 310027
  国网浙江省电力有限公司舟山供电公司，浙江舟山 316000
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.10.019
  CLC：
- Received：15 May 2026，
  
  Revised：2026-07-24，
  
  Published：16 October 2026
- 稿件说明：
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LIU Jiahao, PENG Weilong, YU Jincheng, et al. Effect of Electro-thermal-mechanical Multi-physics Aging on the Insulation Performance of 500 kV DC XLPE Cables[J]. High Voltage Apparatus, 2026, 62(10): 168-174.
DOI：

LIU Jiahao, PENG Weilong, YU Jincheng, et al. Effect of Electro-thermal-mechanical Multi-physics Aging on the Insulation Performance of 500 kV DC XLPE Cables[J]. High Voltage Apparatus, 2026, 62(10): 168-174. DOI： 10.13296/j.1001-1609.hva.2026.10.019.

摘要

为了研究电、热、力多物理场老化对500 kV直流交联聚乙烯（cross-linked polyethylene，XLPE）电缆绝缘特性的影响，文中建立电—热—力联合老化实验平台，采用500 kV直流XLPE电缆绝缘环切试样，在110℃条件下，分别施加30、50、80 N拉伸应力，根据不同实验条件分组对XLPE绝缘试样进行7天的加速老化，采用差示扫描量热法、宽频介电谱仪和直流击穿测试对试样进行实验，研究XLPE试样在高温、电场和拉伸应力协同老化作用下的绝缘性能。结果表明：在电—热—力多场老化作用下，XLPE试样的结晶度老化7天后降至24.47%，片晶厚度增加到5.94 nm，施加更大的拉伸应力使结晶度进一步下降，片晶厚度增加。老化作用下试样的相对介电常数和介质损耗角正切随老化时间以及拉伸应力的增加而增大，老化7天后均达到最大值；施加80 N拉伸应力时，相对介电常数增加到3.54，介质损耗角正切增加了250.28%。XLPE试样的直流击穿强度随老化时间增加而降低，施加80 N的拉伸应力时XLPE试样击穿强度降低了45.64%。研究工作为500 kV直流XLPE电缆的可靠运行提供了实验数据和参考。

Abstract

To investigate the effects of electro-thermal-mechanical multi-physics aging on the insulation characteristics of 500 kV DC cross-linked polyethylene(XLPE)cables

in this paper a combined electro-thermal-mechanical aging experimental platform is established. Ring-cut specimens of 500 kV DC XLPE cables are adopted and the tensile stress of 30 N

50 N

and 80 N are applied respectively at 110℃. The XLPE insulation specimens are divided into different groupsin accordance with the experimental conditions and underwent aging for 7 days. The insulation performance of the XLPE specimens under synergistic aging effects of high temperature

electric field

and tensile stress is evaluated using differential scanning calorimetry(DSC)

broadband dielectric spectroscopy

and DC breakdown testing. The results show that under the action of electro-thermal-mechanical multi-field aging

the crystallinity of XLPE specimensis decreased to 24.47% after 7 days of aging

while the lamerllar thickness is increased to 5.94 nm. Thecrystallinity is reduced and the lamellar thickness is increased further by the application of hgiher tensile stress. The relative dielectric constant and dielectric loss tangent of the specimens is increased with aging time and tensile stress

reaching the maximum values after 7 days of aging. In case of applying a tensile stress of 80 N

the relative dielectric constant is increased to 3.54 and dielectric loss tangent is increased by 250.28% .The DC breakdown strength of XLPE samples is decreased with increasing aging time and

in case of applying a tensile stress of 80 N

the breakdown strength of XLPE samples is decreased by 45.64%. The research work provides experimental data and reference for the reliable operation of 500 kV DC XLPE cables.

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references

刘耀,赵小令,吴佳玮,等.高压直流海缆工程应用现状及展望[J].高压电器,2022,58(2):1-8.

Liu Yao,Zhao Xiaoling,Wu Jiawei,et al.Application status and prospect of HVDC submarine cable projects[J].High Voltage Apparatus,2022,58(2):1-8.

刘刚,李瑞,张圆明,等.循环老化下电缆绝缘介损特征及在线监测修正方法[J].电力科学与技术学报,2025,40(1):274-280.

Liu Gang,Li Rui,Zhang Yuanming,et al.Dielectric loss characteristics and online monitoring correction methods of cable insulation under cyclic aging[J].Journal of Electric Power Science and Technology,2025,40(1):274-280.

斯捷,陈植,赵建,等.基于阻抗谱的电力电缆绝缘缺陷诊断函数故障定位与状态评估方法研究[J].电测与仪表,2025,62 (7):217-224.

Si Jie,Chen Zhi,Zhao Jian,et al.Research on fault location and state evaluation method of diagnostic function for power cable insulation defects based on the impedance spectrum[J].Electrical Measurement & Instrumentation,2025,62(7):217-224.

蒋浩月,常凯颖,伊德伦,等.老旧XLPE电缆绝缘状态评估方法及其应用[J].电力工程技术,2026,45(3):20-27.

Jiang Haoyue, Chang Kaiying, Yi Delun, et al.Condition assessment method of old XLPE cable insulation and its application[J].Electric Power Engineering Technology,2026,45(3):20-27.

汤广福,庞辉,贺之渊.先进交直流输电技术在中国的发展与应用[J].中国电机工程学报,2016,36(7):1760-1771.

Tang Guangfu,Pang Hui,He Zhiyuan.R & D and application of advanced power transmission technology in China[J].Proceedings of the CSEE,2016,36(7):1760-1771.

杜伯学,李忠磊,杨卓然,等.高压直流交联聚乙烯电缆应用与研究进展[J].高电压技术,2017,43(2):344-354.

Du Boxue,Li Zhonglei,Yang Zhuoran,et al. Application and research progress ofHVDC XLPEcables[J].High Voltage Engineering,2017,43(2):344-354.

Zhang Yi,Wu Zaijun,He Jiahong,et al. Electrical treeing behaviours in cross-linked polyethylene cables after thermal ageing[J].High Voltage,2023,8(4):749-759.

周士贻,门业堃,刘博,等. XLPE电缆绝缘片晶周期性结构演变及其对电性能的影响[J].中国电机工程学报,2024,44(3):1205-1213.

Zhou Shiyi,Men Yekun,Liu Bo,et al. Lamellar periodic structure evolution of XLPE cable insulation and its influence on electrical properties[J].Proceedings of the CSEE,2024,44(3):1205-1213.

赵李望,惠卓斌,单聪,等.热老化下聚乙烯绝缘微观结构与电荷输运特性的关联性研究[J].绝缘材料,2025,58(1):38-48.

ZHAO Liwang,HUI Zhuobin,SHAN Cong,et al. Correlation between micro - structure and charge transport properties of polyethylene insulation under thermal ageing[J].Insulating Materials,2025,58(1):38-48.

张杰,赵学童,边浩然,等.电荷陷阱对XLPE绝缘电老化特性的影响[J].高电压技术,2021,47(8):2991-3000.

Zhang Jie,Zhao Xuetong,Bian Haoran,et al. Effect of charge traps on electrical aging of XLPE insulation[J].High Voltage Engineering,2021,47(8):2991-3000.

周远翔,黄继宇,陈健宁,等.低频电压下XLPE绝缘材料电老化性能研究[J].绝缘材料,2025,58(1):1-10.

Zhou Yuanxiang,Huang Jiyu,Chen Jianning,et al. Study on electrical ageing performance of XLPE insulating material under low frequency voltage[J].Insulating Materials,2025,58(1):1-10.

Su Jian,Wei Lei,Zheng Jun,et al. Effects of mechanical stress on insulation structure and performance of HV cable[J].Polymers, 2022,14(2927):1-13.

Hu F,Emersic C,Smith D,et al. The effect of mechanical strain on electrical tree development in XLPE[J].IEEE Transactions on Dielectrics and Electrical Insulation,2024,31(1):313-321.

Xing Yuqi,Liu Jiahao,Su Jian,et al. Effect of nucleating agents on the electrical properties of cross-linked polyethylene under tensile stress[J].High Voltage,2024,9(2):429-439.

Zhang Tianfeng,Lin Wenxin,Zhang Yunxiao,et al. Mechanistic insights into the thermal-mechanical ageing of the interface of cross-linked polyethylene/silicone rubber[J].Journal of Applied Polymer Science,2024,141(12):e55140.

王江琼,李维康,张文业,等.电缆绝缘材料交联聚乙烯的老化及寿命调控[J].物理学报,2024,73(7):28-39.

Wang Jiangqiong,Li Weikang,Zhang Wenye,et al. Aging and life control of cross-linked polyethylene as cable insulation material[J].Acta Physica Sinica,2024,73(7):28-39.

张添胤,陈向荣,王恩哲,等.硫化压力对500 kV超高压直流XLPE电缆工厂接头恢复绝缘性能的影响[J].电工技术学报, 2025,40(9):2931-2943.

Zhang Tianyin,Chen Xiangrong,Wang Enzhe,et al. Effect of vulcanization pressure on the return insulation performance of 500 kV EHVDC XLPEcable factory joints[J].Transactions of China Electrotechnical Society,2025,40(9):2931-2943.

段玉兵,韩明明,王兆琛,等.不同热老化温度下高压电缆绝缘特性及失效机理[J].电工技术学报,2024,39(1):45-54.

Duan Yubing,Han Mingming,Wang Zhaochen,et al. Insulation characteristics and failure mechanism of high-voltage cables under different thermal aging temperatures[J].Transactions of China Electrotechnical Society,2024,39(1):45-54.

Sahoo R,Karmakar S. Impact of accelerated thermal aging on electrical tree structure and physicochemical characteristics of XLPE insulation[J].IEEE Transactions on Dielectrics and Electrical Insulation,2024,31(1):429-438.

李欢,李建英,马永翔,等.不同温度热老化对XLPE电缆绝缘材料晶体结构的影响研究[J].中国电机工程学报,2017,37 (22):6740-6748.

Li Huan,Li Jianying,Ma Yongxiang,et al. Effects of thermal aging on the crystal structures of the XLPE cable insulating material at different temperatures[J].Proceedings of the CSEE,2017,37(22):6740-6748.

石逸雯,周国伟,孟繁博,等.热老化对交流配电XLPE电缆改为直流运行后电缆绝缘性能的影响[J].高电压技术,2021,47 (11):4104-4112.

Shi Yiwen,Zhou Guowei,Meng Fanbo,et al. Effect of thermal aging on the cable insulation properties of AC distribution XLPE cables under DC operation[J].High Voltage Engineering,2021,47 (11):4104-4112.

Wu Chao,Arab M,Ronzello J A,et al. Charge transport dynamics and space charge accumulation in XLPE composites with 2D platelet fillers for HVDC cable insulation[J].IEEE Transactions on Dielectrics and Electrical Insulation,2021,28(1):3-10.

许庆重,李秀峰,孙光华,等.热老化对XLPE/OMMT纳米复合材料微观结构和力学性能的影响[J].绝缘材料,2022,55(10):25-32.

Xu Qingchong,Li Xiufeng,Sun Guanghua,et al. Effect of thermal ageing on microstructure and mechanical properties of XLPE/OMMT nanocomposites[J].Insulating Materials,2022,55(10):25-32.

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