摘要
电弧物理与特性控制是电力开关设备领域的基础和关键科学技术问题,几十年来国内外学术界和工业界开展了大量的研究工作,有力地支撑了高性能电力开关设备的研发和行业的技术进步。本文面向高、低压气体开关,针对空气、SF6及其替代气体,从电弧物性参数(包括热动属性、输运系数、碰撞截面、热态临界击穿场强等)、电弧磁流体动力学建模仿真及其应用、不同因素对电弧特性的影响及其控制规律等几个方面,系统综述了国内外的相关研究现状及进展情况,并提出了需进一步深入研究的若干问题,包括:电弧物性参数的实验测量方法、考虑弧后非平衡击穿过程的三维气体开关电弧数学模型、直流故障电弧的物理特性及高效检测技术、新型SF6替代气体灭弧技术等,从而为我国气体开关电弧理论、高效灭弧技术、新型电力开关设备的研究提供一定的参考与借鉴。
Arc physics and characteristic control are the basic and important technological issues in the field of electric power apparatus. Enormous studies have been carried out in academic and industrial institutions in recent decades, which strongly support the development of high-performance power switchgear and the technological advancement. This paper reviews the recent research progress in high and low-voltage gas switchgear with air and SF6 and their alternative gases from the following aspects: physical parameters(including thermodynamic properties, transport coefficient, collision cross section, thermal critical breakdown field strength and so on), arc Magneto-Hydro-Dynamical(MHD) model simulation and its application, effects of different factors on the arc characteristics and its control regulations and so on. Besides, some issues are proposed and should be deal with in further study, involving the experimental measurement of arc plasma thermodynamic parameters, the arc model of three-dimensional gas switchgear considering the non-equilibrium breakdown process in the post-arc period, the physical characteristics of DC fault arc and the efficient detection technology, the arc extinguishing technology of SF6 alternative gas. Some valuable references are expected to provide for exploration on the gas switchgear arc theory, arc extinguishing technology and new power switchgear equipment.
作者
李兴文
贾申利
张博雅
LI Xingwen;JIA Shenli;ZHANG Boya(State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2020年第3期757-771,共15页
High Voltage Engineering
基金
国家自然科学基金(51825702)
陕西省自然科学基金重大项目(2017ZDJC-16).
