高电压技术2024，Vol.50Issue(5)：2237-2246,10.DOI:10.13336/j.1003-6520.hve.20230811
打印微结构对表面电荷积聚特性的影响
Influence of Printed Microstructures on Surface Charge Accumulation Characteristics
姚亦桐 1杨洋 1牛广乾 2钱志源 2刘承山 2穆海宝1
作者信息
- 1. 西安交通大学电工材料电气绝缘全国重点实验室,西安 710049
- 2. 上海宇航系统工程研究所,上海 201109
- 折叠
摘要
Abstract
Spacecraft and other vacuum equipment are facing the development requirements of higher voltage grade and miniaturization,however,vacuum flashover is prone to occur along the solid-vacuum insulation interface.To improve electric strength along the surface,we have successfully built two microstructures,the microgrooves and the printed metal,on the dielectric surface through 3D printing technology.It is found that the printed microstructures can effectively sup-press the surface charge accumulation process through charge accumulation experimental studies.At the same time,the conditions of different microstructure parameters are further studied through experiments,including different number of microgrooves as well as different width and number of the printed metal wire.Increasing the number and width of micro-structures is found to be beneficial in enhancing their inhibitory effect on charge accumulation.Finally,a PIC simulation is conducted to study the electron movement and secondary electron avalanche development.In conjunction with the ex-perimental results,it is found that the microstructures are capable of scattering electrons,leading to the effects of inhibiting surface charge accumulation and enhancing electric strength along the surface.关键词
真空沿面闪络/3D打印/打印微结构/电荷积聚/二次电子崩/耐电强度Key words
vacuum flashover/3D printing technology/printed microstructure/surface charge accumulation/secondary electron avalanche/electric strength引用本文复制引用
姚亦桐,杨洋,牛广乾,钱志源,刘承山,穆海宝..打印微结构对表面电荷积聚特性的影响[J].高电压技术,2024,50(5):2237-2246,10.
