河北科技大学学报2026，Vol.47Issue(2)：119-126,8.DOI:10.7535/hbkd.2026yx02001
基于数形结合方法的35kV电缆中间接头锥面曲线应力锥设计
Design for cone curve stress cone of 35 kV cable intermediate joint based on number-shape combination method
摘要
Abstract
In order to solve the problem that the traditional stress cone adopts the straight cone curve,which is easy to cause the uneven distribution of the electric field inside the cable intermediate joint,a quadratic cone curve stress cone was designed by using the number-shape combination method.Firstly,the 35 kV cable intermediate joint model was established.Secondly,the electric field distribution characteristics of the stress cone with the straight cone curve and the quadratic cone curve were compared and analyzed.Finally,the key structural parameters such as the winding insulation thickness,cone length,stress cone thickness and cone head curvature radius of the quadratic cone curve stress cone were designed.The results show that compared with the straight cone curve stress cone,the maximum electric field strength inside the joint of the quadratic cone curve stress cone can be reduced by 47.43%at most.When the stress cone winding insulation thickness,cone length,cone curvature radius and stress cone thickness are 10.94 mm,50.48 mm,2.3 mm and 3.3 mm,respectively,the maximum electric field strength inside the joint can be reduced to 3.32 kV/mm,and the maximum electric field strength of the cone surface can be reduced to 1.67 kV/mm.The parametric design of the quadratic cone curve stress cone can more effectively uniform the internal electric field of the joint,reduce the possibility of partial discharge,and improve the operation reliability of the joint.It has reference value for the optimal design of the cable intermediate joint stress cone.关键词
绝缘技术/35kV电缆/应力锥式电缆中间接头/电场分析/有限元/数形结合Key words
insulation techniques/35 kV cable/stress cone cable intermediate joint/electric field analysis/finite element simulation/number-shape combination method分类
信息技术与安全科学引用本文复制引用
张岩,李思宇,刘畅,高世豪,于挺..基于数形结合方法的35kV电缆中间接头锥面曲线应力锥设计[J].河北科技大学学报,2026,47(2):119-126,8.基金项目
国家自然科学基金(62503150) （62503150）
