Observation of Discharge Phenomenon on Surface of Semi-conductive PET Films with Lightning Impulse Voltage
Observation of Discharge Phenomenon on Surface of Semi-conductive PET Films with Lightning Impulse Voltage
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雷电冲击电压下半导体PET薄膜表面放电现象的观察
DOI：
10.1007/978-3-030-31680-8_40
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Hanai M.
中科院分区：
文献类型：
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作者：
Mizusaki M.;Araoka N.;Takamura N.;Sasaki Y.;Matsuda M.;Namihira T.;Hanai M.
近年来，风力发电机作为可再生能源之一正受到人们的关注。然而，由于风力发电机安装在靠近山顶和海岸线的地方，随着风力发电机安装数量的增加，雷击对风力发电机叶片的损害也在增加。因此，我们认为，导电叶片表面是有效的，以防止雷击穿透。我们最近在半导电PET薄膜上进行了雷电放电实验，方法是在薄膜的一面涂上导电聚合物。在我们以前的实验中，沿面放电发生在半导体薄膜表面，并且几乎不穿透它。另外，即使薄膜的未涂覆侧面向高压侧，放电也几乎不穿透。因此，我们认为不将膜的涂覆侧引导到高压电极是不改变表面电阻的好方法。在这项研究中，我们拍摄的表面上的放电的绝缘膜具有半导电性只有在一个表面上的高速摄像机。结果，当施加负极性电压时，在该实验中放电可能不穿透膜。据认为，具有半导电性的膜防止了负极性放电的渗透。此外，我们还用瞬态分析法分析了电位在薄膜上的传播，并探讨了放电难以穿透薄膜的原因。
In recent years, wind power generator is being attracted attention as one of renewable energy. However, lightning damages to blades of wind power generator are increasing with increasing installation of wind power generators, because the wind power generators are installed near the top of mountains and coastlines. Therefore, we considered that the conductive blade surface is effective to protect penetration by lightning strike. We have been recently experimenting with lightning discharge on Semi-conductive PET film by coating one side with conductive polymer. In our previous experiments, creeping discharge occurred on the semi-conductive film surface and hardly penetrated it. In addition, the discharge hardly penetrated even if the uncoated side of the film faces the high voltage side. Therefore, we thought that not directing the coated side of the film to the high voltage electrode is a good way to not change the surface resistance. In this study, we photographed the discharges on the surface of the insulation films having semi-conductivity only on one surface by a high speed camera. As a result, when a negative polarity voltage was applied, the discharge might not penetrate the film in this experiment. It is thought that the film having semi-conductivity prevented the penetration of the negative polarity discharge. In addition, we analysed the propagation of the electrical potential on the film using transient analysis and investigated the reason why the discharge hardly penetrated the film.