绝缘子表面电场紫外辐射量测仿真分析
朱瑾润，雷敏，曾进辉
（湖南工业大学 电气与信息工程学院，湖南 株洲 412007）
摘 要：在绝缘子串表面直接测量电场强度时，电场测量探头靠近绝缘子串引起其表面电场畸变。提出了一种通过测量紫外辐射数值间接获得绝缘子串表面电场的方法。分析了表面电场与紫外辐射之间的数值关系，采用有限元电磁场仿真ANSYS软件对XP-100悬式绝缘子串表面的电场进行仿真，得到绝缘子串周围的电场分布，并依据它们的数值关系推导出紫外辐射场分布，对紫外辐射场分布和电场分布进行对比分析。结果表明：紫外辐射场分布和电场分布保持相同的变化规律，即可通过测量紫外辐射值间接获得绝缘子串表面电场强度，验证了该方法的可行性。
关键词：绝缘子；电场测量；电场分布；有限元法；紫外辐射
中图分类号：TM216+.1 文献标识码：A 文章编号：1007-3175(2018)03-0033-04
Simulation and Analysis of Electric Field Ultraviolet Radiation Measurement Insulator Surface
ZHU Jin-run, LEI Min, ZENG Jin-hui
（College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China）
Abstract: When the electric field intensity is measured directly on the surface of insulator string, the electric field distortion is caused by the electric field measuring probe near the insulator string. This paper proposed a kind of method to indirectly obtaining the surface electric field of insulator string by measuring the ultraviolet radiation value. Analysis was made to the numerical relationship between the surface electric field and ultraviolet radiation. The electromagnetic finite element simulation software of ANSYS was used to simulate the surface electric field of XP-100 suspension insulator string to get the distribution of the electric field around the insulator string. According to their numerical relationship, the distribution of ultraviolet radiation field was derived. The distribution of ultraviolet radiation field and electric field distribution were compared and analyzed. The results show that the distribution of ultraviolet radiation field and the distribution of electric field keep the same law, and the surface electric field of the insulator string can be indirectly obtained by measuring the ultraviolet radiation value, thus proving the feasibility of the method.
Key words: insulator; electric field measurement; electric field distribution; finite element method; ultraviolet radiation
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