半波长线路潜供电弧的动力学特性及与系统电磁暂态的交互作用机理研究

项目名称： 半波长线路潜供电弧的动力学特性及与系统电磁暂态的交互作用机理研究

项目编号： No.51277061

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 电工技术

项目作者： 李庆民

作者单位： 华北电力大学

项目金额： 80万元

中文摘要： 超远距离半波长交流输电兼具技术与经济综合优势，在我国应用前景广阔。本项目重点针对半波长输电线路潜供电弧的关键科学与基础性问题，开展理论探索与技术创新研究。建立并完善半波长线路潜供电弧的模拟实验方法，研究潜供电弧长度、温度和等离子体参量的三维空间重构算法，获得低压模拟实验的等价性准则，优化实验回路拓扑及配置方案；基于物理模拟实验与数字化测试技术研究潜供电弧等离子体与电弧周围空间电磁场、空间流场之间的内在作用机理，揭示半波长输电线路潜供电弧起始、运动、发展、熄灭与重燃的演化规律；研究潜供电弧等离子体的动力学模型，从流体力学、传热学、电磁学等多尺度分析潜供电弧与半波长输电线路电磁暂态过程的相互作用机理。本项目研究结果将揭示半波长输电线路潜供电弧的内在物理机制，为发展半波长输电提供基础理论和新技术，具有重要的理论意义和应用价值。

中文关键词： 半波长线路；潜供电弧；物理特性；动力学建模；抑制技术

英文摘要： With preferable advantages in both technological and economical prominence, Half-Wave Length AC Transmission (HWACT) renders a positive application prospect in China. The proposed project will concentrate on the key science and fundamental issues of secondary arcs with HWACT for theoretical exploration and technological innovation. Methodologies for physical experiments of the HWACT secondary arcs will be established as to achieve 3-D reconfiguration of the arc length, temperature and plasma parameters, and the equivalence criteria for physical simulation will be proposed together with topology optimization. Based on physical simulation and digital instrumentation, more attentions will be given to the interaction mechanism between secondary arcs and the surrounding spatial electromagnetic and fluid fields as to explore the evolution laws that govern secondary arcs' inception, movement, development, extinction and re-ignition. Based on the proposed dynamic model of the HWACT secondary arcs, its interaction mechanism with power systems electromagnetic transients will be elucidated from a multiple-scale point of view in terms of hydrodynamics, heat transfer and electromagnetics. The proposed project will uncover the intrinsic physical nature of the HWACT secondary arcs, which presents fundamental theory and novel t

英文关键词： half-wave length AC transmission line；secondary arc；physical characteristics；dynamic model；suppression technique