中国电机工程学报2016，Vol.36Issue(7)：2018-2024,7.DOI:10.13334/j.0258-8013.pcsee.2016.07.030
320kV XLPE高压直流电缆接头附件仿真分析和结构优化设计
Simulation Analysis and Design Optimization of 320kV HVDC Cable Joint
尚康良 1曹均正 1赵志斌 2韩正一 1马丽斌 2李文鹏1
作者信息
- 1. 全球能源互联网研究院，北京市昌平区 102200
- 2. 华北电力大学，北京市昌平区 102206
- 折叠
摘要
Abstract
Cross-linked polyethylene (XLPE) cables which have been widely used in high voltage direct current (HVDC) systems are usually jointed together on-site using pre-molded joint accessories made by silicon rubber (SR). In order to study the electric field and optimize the design of the joint accessory, the conductivities of cable and accessory insulations, the geometrical parameters of stress cones and high-potential screening tubes which influence the electric field were analyzed. It is known that there are non-linear relationships between conductivities of cable and accessory insulations and the electric fields and temperatures of the materials. Referring to the experiment data, the expressions of XLPE and SR were obtained, and then were applied in the simulation. It could be judged whether the match was suitable for refining the electric fields in allowed range. By properly designing the stress cone and the high-potential screening tube of the cable joint, the magnitudes of local electric fields of these components werereduced and the tangential electric fields along the interface of cable and accessory insulations were restrained. The result showsthat optimized electric fields can be obtained obtained if the stress cone follows the shape equation derived, a thick high-potential stress tube is used, and the conductivity of SR matches that of XLPE.关键词
高压直流电缆/附件/应力锥/电场仿真/接头/交联聚乙烯/硅橡胶Key words
HVDC cable/accessory/stress cone/electric field simulation/cable joint/cross-linked polyethylene/silicone rubber分类
信息技术与安全科学引用本文复制引用
尚康良,曹均正,赵志斌,韩正一,马丽斌,李文鹏..320kV XLPE高压直流电缆接头附件仿真分析和结构优化设计[J].中国电机工程学报,2016,36(7):2018-2024,7.
