摘要
Positive corona burst pulses are an unstable pulse mode.They appear in a small range of the onset stage,and their current pulses result from the collective movement of charged species.This paper focused on the connections between these pulses and the collective movement of charged species.The movement of species is divided into four parts with respect to time:the(1)initial growth of species,(2)formation and development of the streamer region and negative ion sheath,(3)dead time(the time interval between the pulses),and(4)rapid re-growth of species.The movement of the species in the four parts and the correspondence with the current pulse were analyzed.The numerical results indicated the following:the rapid rising of the species matched the rising edge of the pulses,the streamer region,and negative ion sheath appeared in the falling edge of the primary pulse,and the rapid re-growth of species matched the re-ignition of the pulses.The results were in qualitative agreement with deductions and experimental observations in the literature.
作者
彭永康
陈小月
蓝磊
詹皓予
刘永聪
何旺龄
文习山
Yongkang PENG;Xiaoyue CHEN;Lei LAN;Haoyu ZHAN;Yongcong LIU;Wangling HE;Xishan WEN(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430074,People's Republic of China;School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071000,People's Republic of China)
基金
supported by National Natural Science Foundation of China(No.51907145)。