棒板长间隙击穿电压计算  

Research on Calculation of Rod-plane Long Air Gaps Breakdown Voltage

作　　者：杨芸 高超 陈枫林[2] 孙瑞杰 李锐海 王黎明[2] 

机构地区：[1]南方电网科学研究院,广州510080 [2]清华大学深圳研究生院,深圳518055

出　　处：《云南电力技术》2015年第1期145-150,共6页Yunnan Electric Power

摘　　要：利用模拟电荷法提出了一种仿真模型,模拟了1 m到10 m棒板长间隙放电过程中电晕、流注、先导和末跃的基本过程。确定了先导判据和流注长度经验公式中的参数,得到了电晕电压、先导长度、末跃电压和击穿电压的仿真数据,与经验公式和试验结果相符。并在最后归纳出了一个拟合公式,用于判断1 m到10 m任意间隙长度的击穿电压。In this paper,charge simulation method is used to propose an emulation model that simulates the basic course of corona,stream,leader and last step in discharge process of rod- plate long air gap from 1 m to 10 m. Parameters of leader criterion and stream length empirical formula are fixed,and simulation results of corona voltage,leader length,last step voltage and breakdown voltage are obtained,conforming to the empirical formula and experiment results. At last,a fitting formula is generalized to judge the breakdown voltage of all the air gaps from 1 m to 10 m.

关 键 词：棒板间隙 长间隙放电 击穿电压 先导发展模型 模拟电荷法 

分 类 号：TM751[电气工程—电力系统及自动化]