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Positive corona discharge behaviors of SF6 short gap under non-uniform field
Author(s): 
Pages: 75-79
Year: Issue:  5
Journal: Electric Machines and Control

Keyword:  针-板电极SF6气体粒子行为电场分布电晕放电;
Abstract: 为深入探索SF6气体放电过程的微观机制,对大气压下10mm针-板电极SF6气体间隙的正电晕放电通道中带电粒子行为进行了研究.在尖-板电极模型的基础上,考虑了SF6间隙放电过程带电粒子电离、附着、复合、扩散以及光致电离的影响,给出了SF6短气隙正电晕放电过程的电子、正离子和负离子时空行为的表征方程,以及与空间电荷场耦合的泊松方程,并采用通量校正输运法(flux-corrected transport,FCT)对粒子连续性方程进行求解,获得了放电过程中带电粒子的时空行为规律及空间电场分布发展规律,并从空间电荷密度、放电参数、电场强度等方面与实验结果相比较,验证了模型及算法的正确性.
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