激光技术对架空线路塑料薄膜异物处理特性的研究
首发时间:2017-05-25
摘要:架空线路塑料薄膜异物是当前对于供电稳定和电网安全威胁最大的因素之一,架空线异物的传统处理方式都不同程度地具有操作难度高、安全风险大、经济成本高等问题。激光技术由于其无接触、速度快、准确度高等优点,在架空线路塑料薄膜异物处理方面具有极大的应用潜力。本文将基于CO2激光器、光纤激光器、半导体激光器,对激光处理塑料薄膜类异物的特性进行研究。首先,测量了不同类型激光器对不同颜色、不同厚度塑料薄膜的透射率,且横向比较了不同类型激光器对塑料薄膜的实际熔穿效果;其次,通过CO2激光器由实验测量与理论计算测定了塑料薄膜最小熔穿功率密度,估算了光纤激光器的损失功率;最后,考虑到实际应用中激光在大气中的衰减受气溶胶影响较大,而气溶胶的形成与湿度有密切的关系,因此进行了湿度对激光大气传输影响的实验。这些测试与研究,对促进更好地了解激光处理塑料薄膜类异物的特性,从而推动激光技术在实际工程中的应用具有显著意义和指导作用。
关键词: 电力系统及其自动化 激光技术 架空线 塑料薄膜 CO2激光器
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Researches of treating properties of plastic film at overhead lines by the laser technology
Abstract:The foreign body of plastic film at overhead lines is one of the biggest threats at present for the stablity of power supply and the security of power grid. The traditional treatments of foreign bodies at overhead lines are different degrees with high operation difficulty, safety risk and high economic cost. Because of its advantages such as no contact, high speed and high accuracy, laser technology has great potential in the treatment of foreign bodies at overhead lines. Based on CO2 laser, fiber laser and semiconductor laser, the characteristics of foreign bodies treated by laser are studied. First of all, the transmissivities of different types of lasers with different colors, different thickness of plastic film are measured, and the comparisons of the actual melting effects by different types of laser on plastic film are tested; Secondly, by experimental measurements and theoretical calculations, the least penetration power density of plastic film and the power loss rate of fiber laser are estimated. Finally, considering the aerosol's influence to laser's transmission in atmosphere, and there is a close relationship between the humidity and the formation of the aerosol, so the influence of humidity on laser transmission at atmosphere has been researched.
Keywords: Power System and Automation Laser Technology Overhead Line Plastic Film CO2 Laser
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No.4734895120282114****
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