Effects of electrical aging on the structural and physicochemical properties of crosslinked polyethylene (XLPE) cable insulation material

Hedir, Abdallah; Slimani, Ferhat; Moudoud, Mustapha; Lamrous, Omar; Durmuş, Ali; Fofana, I.

doi:10.1088/2631-8695/ac5c86

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…当线缆内部存在诸如空气间隙、微孔洞等缺陷时, 线缆缺损部位的电场将发生畸变, 从而引起缺陷部位的局部放电. 在强电场或湿度的影响下, 绝缘内部可能会产生"电树枝"或"水树枝", 从而导致绝缘材料的损伤 [38] . Hedir等 [39] 探究了XLPE绝缘材料在电老化过程中物理化学性能的演变, XLPE的性能损失与老化时间成正相关.…”

Section: 由此可以将某一电场强度E下电缆绝缘的电unclassified

Aging and life control of cross-linked polyethylene as cable insulation material

Wang,

Li,

Zhang

et al. 2024

Acta Phys. Sin.

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Cross-linked polyethylene (XLPE) has been widely applied in the field of power cables because of its excellent mechanical properties and insulating properties. However, during the operation of high voltage cables, XLPE will inevitably be affected by electrical aging, thermal aging and electric-thermal joint aging, which makes the performance and life of the material decline. Therefore, it is necessary to enhance the aging resistance of XLPE without affecting its mechanical properties and insulating properties, so as to achieve the purpose of extending its service life. In this paper, the structural characteristics and cross-linking mechanism of XLPE are introduced, the aging process and influencing mechanism are systematically analyzed, and the life decay problems of XLPE due to aging are explored by using methods such as the temperature Arrhenius equation and the inverse power law of voltage. The regulatory strategies such as grafting, blending, and nano-particle modification, etc., can be applied to improve the thermal stability, antioxidant performance, and thermal aging resistance of XLPE, thereby extending its service life. Finally, the future direction of the strategies for regulating the service life of XLPE cable insulation materials is envisioned, which provides theoretical guidance for the further improvement and long-term stable operation of XLPE cable insulation materials.

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Section: 由此可以将某一电场强度E下电缆绝缘的电unclassified

Aging and life control of cross-linked polyethylene as cable insulation material

Wang,

Li,

Zhang

et al. 2024

Acta Phys. Sin.

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“…[49]. Research conducted by [50,51] analyzes the changes in physiochemical (via Fourier transform infrared spectroscopy, X-ray diffraction) and dielectric properties (via differential thermogravimetry) resulting from artificial electrical aging. Comparatively, thermal aging is defined as the physiochemical changes resulting from degradation reactions, and polymerization and depolymerization due to increased operating temperatures [49].…”

Section: Thermal Aging Of Operating Equipmentmentioning

confidence: 99%

State-Space Load Flow Calculation of an Energy System with Sector-Coupling Technologies

Bottler

Weindl

2023

Energies

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This paper addresses the sector-coupling principle, highlights each associated sector’s technologies and showcases their future development, according to the German grid development plan. Furthermore, the research project ESM-Regio, and its goals in terms of simulatively analyzing the sector-coupling approach for a specific model region and future scenarios, is introduced. In this context, the key methods for modeling the electricity sector’s loading behavior are showcased. Most importantly, the state-space load flow calculation, load modeling (including the integration of the power demands of the sector-coupling technologies) and an assessment of grid operating equipment, based on thermal aging models, are described.

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Research on the degradation in micro-structure and dielectric performance of XLPE cable insulation in service

et al. 2023

J Mater Sci: Mater Electron

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Effects of electrical aging on the structural and physicochemical properties of crosslinked polyethylene (XLPE) cable insulation material

Cited by 5 publications

References 28 publications

Aging and life control of cross-linked polyethylene as cable insulation material

Aging and life control of cross-linked polyethylene as cable insulation material

State-Space Load Flow Calculation of an Energy System with Sector-Coupling Technologies

Research on the degradation in micro-structure and dielectric performance of XLPE cable insulation in service

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