A novel simulation method for positive corona current pulses  

作　　者：刘阳 崔翔 卢铁兵 李学宝 王振国 向宇 王小波 

机构地区：[1]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University

出　　处：《Chinese Physics B》2015年第6期395-402,共8页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2011CB209402);the National Natural Science Foundation of China(Grant No.51177041);the Fundamental Research Funds for the Central Universities,China(Grant No.12QX01)

摘　　要：A novel two-dimensional （2D） simulation method of positive corona current pulses is proposed. A control-volume- based finite element method （CV-FEM） is used to solve continuity equations, and the Galerkin finite element method （FEM） is used to solve Poisson＇s equation. In the proposed method, photoionization is considered by adopting an exact Helmholtz photoionization model. Furthermore, fully implicit discretization and variable time step are used to ensure the time-efficiency of the present method. Finally, the method is applied to a positive rod-plane corona problem. The numerical results are in agreement with the experimental results, and the validity of the proposed method is verified.A novel two-dimensional （2D） simulation method of positive corona current pulses is proposed. A control-volume- based finite element method （CV-FEM） is used to solve continuity equations, and the Galerkin finite element method （FEM） is used to solve Poisson＇s equation. In the proposed method, photoionization is considered by adopting an exact Helmholtz photoionization model. Furthermore, fully implicit discretization and variable time step are used to ensure the time-efficiency of the present method. Finally, the method is applied to a positive rod-plane corona problem. The numerical results are in agreement with the experimental results, and the validity of the proposed method is verified.

关 键 词：positive corona corona current pulses control-volume-based finite element method photoioniza-tion 

分 类 号：O441[理学—电磁学]