Comprehensive Performance Comparisons of Polypropylene-based HVDC Cable Insulating Materials Adopting Different Modification Technical Routes

被引：0
|
作者：
Hu S. [1 ]
Zhang Y. [2 ]
Shao Q. [2 ]
Li J. [2 ]
Wang W. [1 ]
Hu J. [3 ]
Li Q. [3 ]
Yuan H. [2 ]
He J. [3 ]
机构：
[1] Department of Electrical and Electronic Engineering, North China Electric Power University, Changping District, Beijing
[2] SINOPEC Beijing Research Institute of Chemical Industry, Chaoyang District, Beijing
[3] State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Haidian District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Copolymerization; Grafting modification; HVDC cable; Insulating material; Nanocomposite; Polypropylene;
D O I：
10.13334/j.0258-8013.pcsee.212446
中图分类号：
学科分类号：
摘要：
As a promising thermoplastic insulating material for HVDC cables, polypropylene (PP) is expected to replace the conventional cross-linked polyethylene (XLPE) insulation. The PP-based modification technology for HVDC cable insulation includes copolymerization/blending, nanocomposites, and grafting modification. To make a comprehensive evaluation of the modification technical routes above, copolymerized PP, PP-based nanocomposites, and grafting- modified PP were chosen and prepared, respectively. The thermal, mechanical, and DC dielectric properties were tested and compared with XLPE. The results indicated that compared with conventional XLPE, the PP-based modified materials showed superior thermo-stability and similar mechanical properties. Whereas the dielectric properties under DC condition were significantly enhanced. Among them grafting- modified PP performed the best. PP-based grafting modification is of excellent comprehensive performances and applicable in large-scale industrial production, therefore showing excellent application potential and development value. © 2022 Chin. Soc. for Elec. Eng.
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页码：1243 / 1251
页数：8
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