Multiparameter Weight Analysis and Comprehensive Performance Evaluation of EPDM Rubber Under Ultraviolet Environment

IF 2.9 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Wenhao Deng;Hao Feng;Hao Guo;Yongjie Nie;Guochang Li;Yuanwei Zhu;Shengtao Li;Yanhui Wei
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Abstract

With the implementation of the “double carbon” strategy, much attention has been paid to the development and utilization of clean and renewable energy, such as offshore wind energy. Ethylene propylene diene monomer (EPDM) cables are widely used in power transmission of offshore wind turbines due to its excellent electrical and mechanical properties. Ultraviolet (UV) radiation has a great destructive effect on cable insulation materials under marine conditions. First, the effects of UV radiation on the electrical and mechanical properties of EPDM were studied by artificial accelerated aging experiments. Furthermore, several parameters, such as breakdown strength and tensile strength, were analyzed, and the effect of UV radiation on the comprehensive properties of EPDM was analyzed. The results show that EPDM undergoes recrosslinking, oxidation, and degradation reaction in the process of UV radiation aging, resulting in varying degrees of changes in resistivity, dielectric properties, breakdown strength, tensile strength, and other parameters. The improved gray relation analysis (GRA) is used to further analyze that the comprehensive properties under UV radiation of EPDM decreased rapidly from 0 to 480 h, with a decrease of 27.67%, and the comprehensive properties of the samples remained stable with the extension of aging time. This work has an important guiding significance for the long-term reliability evaluation of cable insulation materials for offshore wind power.
紫外线环境下三元乙丙橡胶的多参数重量分析和综合性能评估
随着“双碳”战略的实施,海上风能等清洁可再生能源的开发利用受到重视。三元乙丙电缆以其优异的电性能和力学性能被广泛应用于海上风力发电机组的电力传输中。在海洋环境下,紫外线辐射对电缆绝缘材料具有很大的破坏作用。首先,通过人工加速老化实验研究了紫外线辐射对EPDM电学和力学性能的影响。分析了击穿强度和拉伸强度等参数,并分析了紫外线辐射对三元乙丙橡胶综合性能的影响。结果表明,EPDM在UV辐射老化过程中发生了重交联、氧化和降解反应,导致其电阻率、介电性能、击穿强度、抗拉强度等参数发生了不同程度的变化。利用改进的灰色关联分析(GRA)进一步分析,EPDM在紫外线照射下的综合性能在0 ~ 480 h内迅速下降,下降幅度为27.67%,随着老化时间的延长,样品的综合性能保持稳定。该工作对海上风电电缆绝缘材料的长期可靠性评估具有重要的指导意义。
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来源期刊
IEEE Transactions on Dielectrics and Electrical Insulation
IEEE Transactions on Dielectrics and Electrical Insulation 工程技术-工程:电子与电气
CiteScore
6.00
自引率
22.60%
发文量
309
审稿时长
5.2 months
期刊介绍: Topics that are concerned with dielectric phenomena and measurements, with development and characterization of gaseous, vacuum, liquid and solid electrical insulating materials and systems; and with utilization of these materials in circuits and systems under condition of use.
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