基于环保型绝缘气体CF3I的新一代GIL的应用基础研究

项目名称： 基于环保型绝缘气体CF3I的新一代GIL的应用基础研究

项目编号： No.51337006

项目类型： 重点项目

立项/批准年度： 2014

项目学科： 电工技术

项目作者： 肖登明

作者单位： 上海交通大学

项目金额： 280万元

中文摘要： 《京都议定书》中明确了SF6气体对全球气候变暖的严重影响，因此寻找优良环境指标的SF6替代气体成为了国内外的研究热点，而对新型环保绝缘气体CF3I的研究属于该领域中的前沿课题。在气体绝缘高压输电线（GIL）中采用CF3I混合气体作为绝缘介质不仅能够保证良好的绝缘水平，还能有效地减少温室气体排放，因此新一代环保型GIL在优化环境方面具有重要的意义。要将CF3I用于GIL中取代SF6作为绝缘介质，需要研究其在复杂电气环境下的击穿特性和微观放电参数，由于缺乏相关的参考数据，使得 CF3I混合气体在电力设备中的应用受到了极大的限制。本课题将通过气体放电试验研究CF3I混合气体在不同电气环境下的绝缘特性及其变化特点，分析其放电机理，辅助Boltzmann方程计算混合气体的电子输运参数，研究采用CF3I混合气体作为绝缘介质的GIL在应用方面的重要技术基础问题，为新一代GIL 输电工程提供参考依据。

中文关键词： 气体放电；;环保气体;三氟碘甲烷;气体绝缘输电线;六氟化硫

英文摘要： The Kyoto Protocol confirmed that SF6 has serious influence on the global climate change, therefore, the study on the alternative gas for SF6 has become the focus of the research of scholars. Especially, the investigation of the environmental friendly gas CF3I is the frontier subject in the field of gas insulation. The gas insulated line (GIL) which uses CF3I gas mixtures as the insulation medium can not only guarantee excellent insulation level, but also reduce the greenhouse gas emissions. The new generation of environmental friendly GIL is significant for promoting energy conservation and emission reduction and optimizing environment resource utilization. In order to apply gas mixtures containing CF3I as the insulation medium, it is necessary to fully understand the breakdown characteristics and micro-discharge parameters of the gas mixtures under complex electrical environment. However, as a result of the deficiencies in the research on CF3I, the application of CF3I gas mixtures on the electrical apparatus is greatly limited. In present work, we aim to use the gas discharge experiments to study the insulation characteristics of the CF3I gas mixtures under different electrical environment and analyze the discharge mechanism. In addition, we will use the theoretical framework of the Boltzmann equation method to calculate the electron swarm parameters of CF3I gas mixtures., Finally, discussions will be made on the important technical problems and processing mode which might be encountered in manufacturing, design, construction and operation, which will provide reference for the future transmission project of the new generation of GIL.

英文关键词： Gas discharge;Environment friendly gas;CF3I;Gas insulated line;SF6