中国电机工程学报2012，Vol.32Issue(10)：13-21,9.
长空气间隙放电过程的试验观测技术
Experimental Observation Technology for Long Air Gap Discharge
摘要
Abstract
Experimental observation technology applied to record the physical process of long air gap discharge is the key to the research of its physical mechanism and the establishment of a simulation model. High-speed optical observation technology, discharge current measurement technology, space electric field measurement technology and the method for the synchronization of the above technologies were studied in this paper. The image-forming principle of the high-speed charge coupled devices （CCD） camera was analyzed. According to the optical characteristics of the leader channel, a practical observation method was proposed. A novel electrode construction was proposed to reduce the impact of the displacement current and surface discharge current of the electrode body. A digital photoelectric isolation acquisition system was developed for the transmission of the current signal. Base on the Pockels effect, an integrated electric field measuring device with a measurement amplitude limit of 800 kV/m was developed. At last, a synchronization scheme for optical observation results and electrical measurement results using the exposure clock signal of the high-speed CCD camera was proposed. The work involved in this paper is beneficial for obtaining the key physical parameters accurately, and clarifying the physical process of long air gap discharge.关键词
长空气间隙放电/放电物理过程/高速光学观测/放电通道电流/空间瞬态电场/同步观测技术Key words
long air gap discharge/discharge physical process/high-speed optical observation/discharge current/space transient electric field/synchronization observationtechnology分类
信息技术与安全科学引用本文复制引用
陈维江,谷山强,谢施君,孙豹,贺恒鑫,陈家宏,何俊佳,钱冠军,向念文..长空气间隙放电过程的试验观测技术[J].中国电机工程学报,2012,32(10):13-21,9.基金项目
国家自然科学基金项目（50737003）. （）
