基于数据驱动方法反演C_(4)F_(7)N气体完整自洽碰撞截面集的研究  

Inversion Calculation of A Complete and Self-consistent Collisional Cross-section Set of C_(4)F_(7)N Using Data-driven Method

作　　者：张博雅 刘沛琼 郝迈 李兴文[1] ZHANG Boya;LIU Peiqiong;HAO Mai;LI Xingwen(State Key Laboratory of Electrical Insulation and Power Equipment(Xi’an Jiaotong University),Xi’an 710049,Shaanxi Province,China)

机构地区：[1]电工材料电气绝缘全国重点实验室(西安交通大学),陕西省西安市710049

出　　处：《中国电机工程学报》2025年第2期791-802,I0033,共13页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家电网有限公司科技项目(5500-202199527A-0-5-ZN)。

摘　　要：以C_(4)F_(7)N为代表的新型环保气体由于缺乏完整且物理自洽的电子-分子碰撞截面集,限制了对其微观放电机制的研究。该文应用数据驱动的方法,根据电子群参数与碰撞截面之间自洽的物理联系,基于LXCat数据库中大量碰撞截面数据,建立由电子群参数到碰撞截面的映射关系。在人工修正的C_(4)F_(7)N气体碰撞截面集和电子群参数实验数据的基础上,成功预测出一组新的完整且物理自洽的碰撞截面集,并评价预测C_(4)F_(7)N碰撞截面集的准确性、完备性和自洽性。结果表明,新的碰撞截面集计算的C_(4)F_(7)N气体电子群参数与实验值更加吻合。所采用的数据驱动方法可提高获得碰撞截面过程的效率,减弱人工修正过程中的主观性,为获得新型环保气体的碰撞截面提供新的思路。The lack of a complete and physically self-consistent electron-neutral collisional cross section set for the eco-friendly gases represented by C_(4)F_(7)N limits the study of their microscopic discharge mechanisms.Based on the self-consistent physical connection between the electron swarm parameters and the collisional cross sections,a data-driven method is adopted to establish the mapping relationship from electron swarm parameters to realistic collisional cross sections from the LXCat project.A new complete and physically self-consistent set of collisional cross sections is successfully predicted on the basis of manually corrected C_(4)F_(7)N gas collisional cross section set and experimental data on electron swarm parameters.The accuracy,completeness,and internal consistency of the predicted C_(4)F_(7)N cross section set are evaluated.The results show that the electron swarm parameters of C_(4)F_(7)N calculated by the new collisional cross section set are more consistent with the experimental values.The adopted data-driven method can greatly improve the efficiency of the process of obtaining a collisional cross section set.In addition,this method can reduce the subjectivity in the manual correction process,which provides a new way to obtain the collisional cross sections of new eco-friendly gases.

关 键 词：数据驱动 电子群参数 碰撞截面 自洽性 新型环保气体 

分 类 号：TM213[一般工业技术—材料科学与工程]