Numerical simulation on the wind capability of 10 kV distribution lines
DENG Hui hua1, GUO Lin1, HUANG Shao hui2, QI Jie2, WANG Jun wu3, 
QIN Rong shan3, ZHANG Yawen3
(1.Huizhou Power Supply Bureau, Guangdong Power Grid Corporation, Huizhou 516001, China;
2.Huizhou Electric Power Design Institute, Huizhou 516001, China;
3.Guangzhou Power Electric Technology Co., Ltd., Guangzhou 510640, China)

Abstract: Aiming at the problem that the distribution lines  insufficiency of capability to withstand violent typhoon, a numerical study on the anti wind capability of 10 kV distribution lines was presented, and the effect of foundation soil and stay wire on the pole were discussed too. Firstly, A finite element model of a standard line, including the line, pole, pole arm, stay wire and foundation soil were established by ABAQUS/CAE. Then it was used to discuss the deformation under different wind speeds after the wind loading was applied by equivalent inertial acceleration. Comparing the numerical solutions with theoretical ones, the finite element model could be verified. Finally, the bending moment, deflection and stress distribution of the pole of three kinds of lines were investigated, which covered the effect of foundation soil, strengthened with stay wire and none of both. The results indicate that the soil deformation has superimposed effect on the deflection of pole and stay wire can decrease the maximum bending moment of pole.

Key words: numerical study; distribution line; violent typhoon; anti wind capability; ABAQUS