高电压技术2012，Vol.38Issue(8)：1973-1980,8.
导线全面工频起晕电压测量新方法
New Method for Measuring Comprehensive Voltage Corona Onset Voltage of Wire
摘要
Abstract
It is important to measure corona onset voltage.We put forward a new measurement method of AC corona onset voltage,namely,installing a non-contact voltage sensor by the wire.When corona discharge occurs on the surface of the wire,ionosphere of line surface changes the sensor ratio,and changes of the sensor ratio can be used to measure corona discharge and corona onset voltage,thus a sensor model is established.The results of power frequency voltage tests indicate that the sensor has good precision.According to corona layer model theory,AC onset corona experiment is designed,and comparison with the photons tangent method indicates that the method can accurately measure the comprehensive corona onset voltage value.Analysis of AC experimental data shows that changes of sensor ratio can describe frequency corona characteristics.The method is simple and convenient,easy to realize,suitable for the engineering application and corona experimental studies.关键词
电晕放电/电晕套/电容模型/分压比/电压传感器/全面起始电晕电压/工频电晕特性Key words
corona discharge/corona envelop/capacitance model/divider ratio/voltage sensor/comprehensive corona onset voltage/AC corona characteristics分类
信息技术与安全科学引用本文复制引用
杨勇,李立浧,杜林,常阿飞,黄旭..导线全面工频起晕电压测量新方法[J].高电压技术,2012,38(8):1973-1980,8.基金项目
重庆市科技攻关计划 （）
国家创新研究群体基金 （）
国家重点基础研究发展计划（973计划） （）
