中文摘要：

提高绝缘材料表面憎水性可有效抑制电力系统中污闪、湿闪发生,对保障电力系统设备的稳定可靠运行具有重要意义。针对大面积绝缘材料表面处理需求,该文将单管射流进行扩展,设计二维蜂巢状射流阵列电极结构,在Ar中带入三甲基硅烷（TMS）引入憎水性成分来产生含憎水性成分的二维射流阵列放电。论文诊断了TMS/Ar混合气体射流阵列的电学特性、光学特性并计算得到相关放电参量,研究了TMS含量对放电特性的影响。在此基础上,利用所得到的稳定射流阵列对典型绝缘材料环氧进行憎水性表面改性,研究了TMS含量和处理时间对改性效果的影响,并对改性条件进行优化。结果表明：随着TMS含量增加,阵列放电强度减弱,放电功率和传输电荷以及相关粒子等均呈减小趋势。TMS含量为0.04%时,放电电流为75mA,传输电荷与放电功率分别为1617nC、86.75W,在此条件下对环氧材料进行改性效果最优,经过180s处理后,环氧表面水接触角由处理前的42°提高至最大值118°。

英文摘要：

Improving the surface hydrophobicity of insulating material can effectively curb pollution flashover and moisture flashover in power system, which is of great significance to ensure the stable and reliable operation of power system equipment. Aiming at the surface treatment requirement of large-area insulation materials, single-tube jet was expanded to form a jet array. A two-dimensional honeycomb jet array electrode structure was designed, and trimethysilane （TMS） was added into Ar as the working gas to generate the jet array containing hydrophobic ingredients. The effect of TMS content on the discharge characteristics of the jet array was studied. The electrical properties and optical properties of the jet array with TMS/Ar mixed working gas were diagnosed and the correlated discharge parameters were obtained through calculation. On the basis of the above results, the hydrophobic surface modification of typical insulation material epoxy resin by using the obtained stable jet array was conducted, and the effect of TMS content and treatment time on the modification effect was studied and the modification conditions were optimized. The results show that with the increase of TMS content, the discharging intensity of the array decreases, and the discharge power and transfer charge as well as the related particles all show a decreasing trend. When the content of TMS is 0.04%, the discharge current is 75mA, and the transfer charge and discharge power are 1617nC and 86.75W, respectively. In this condition, the epoxy resin material can be modified to obtain the best effect. After 180s treatment, the water contact angle in the epoxy surface is increased to the maximum of 118° from 42° before the modification.