摘要
结构参数是影响金具表面电场分布的重要因素之一,采用正交试验方法选择双摆防舞器的结构参数,利用有限元ANSYS分析方法,建立了双摆防舞器的三维平面试验模型,研究摆锤半径、摆臂长度和摆角对其表面电场分布的影响。采用极差分析法,得到摆锤半径对双摆防舞器表面场强影响最大,摆臂长度次之,摆角最小;而采用方差分析法得出,摆锤半径和摆臂长度的改变对双摆防舞器表面场强有显著影响,而摆角的大小无显著影响。依据计算结果,开展了真型电晕试验,得出电晕起始/熄灭电压随着摆臂长度和摆锤半径的变化趋势,并给出了2km及以下海拔高度的选用组合方式。研究结果为实际工程的应用提供了客观数据,也可为今后特高压工程中双摆防舞器的设计和选型提供参考依据。
The optimization of the structural parameters ameliorates the electric field distribution characteristics of the electric fittings.Therefore,by selecting the model parameter in the orthogonal experiments,we establishes the plane test model using the finite element analysis software ANSYS to study the electric field distribution influenced by the radius of the pendulum,the length of swing arm and the angles of the swing.In the range analysis,it can be seen that the radius of the pendulum is the most influential factor,followed by the swing arm length and the swing angle.The variance analysis results show that the most significant influences are the radius of the pendulum and the length of the swing arm,while the swing angle has no sense.Though the calculations,a corona test is carried out.The tendency of the corona inception and extinction voltage with the arm length and the pendulum radius diameter is obtained.The applied selection in the areas of 2km and below above the sea level is also obtained.The research results provides the reference data for practical engineerings and selections of the UHV transmission lines.
作者
全姗姗
李峰
张锐
邓杰杰
张虎
袁光裕
QUAN Shanshan;LI Feng;ZHANG Rui;DENG Jiejie;ZHANG Hu;YUAN Guangyu(China Electric Power Research Institute,Wuhan 430074,Hubei Province,China;State Grid Corporation of China,Xicheng District,Beijing 100031,China)
出处
《电网技术》
EI
CSCD
北大核心
2023年第10期4342-4348,共7页
Power System Technology
基金
中国电力科学研究院有限公司自筹项目(SZ83-22-001)。
关键词
特高压
双摆防舞器
正交试验法
仿真计算
电晕试验
ultra high voltage
double pendulum damper
orthogonal test method
simulation calculation
corona test
