摘要
给出了冲击电晕特性的计算模型．该模型以电晕电极周围的电场强度、空间电荷密度与极间电压之间的宏观联系为基础，将电晕发展过程从时间和空间上加以离散化。模型的待定参数由若干实测数据拟合，通过模型计算能自动生成双指数雷电波和衰减振荡波等快速冲击波形下的电晕电压－电荷特性，且计算结果与试验结果能较好地吻合。
This paper develops a numerical model for calculating the q-v characteristics of fast impulse corona, which is based on the macroscopic relations to the interelectrode voltage, space charge density and field intensity in coronating region. The discretization of the corona discharge process is made in time and in space domain and the model is capable of reflecting the development and variation of multilayer space charges with different polarities. The corona q-v characteristics can be produced autom- atically by the model for different waveshapes such as damped oscillation and double exponential impulses. The parameters of the corona model are determinted by close fitting of the measured data. The computational results from the model agree fairly well with the experimental ones.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1992年第4期72-78,共7页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金
关键词
电晕
衰减振荡波
电压电荷特性
corona, damped oscillation impulse, q-v characteristics
