摘要
特高频天线的性能决定了局部放电电磁波检测的灵敏度与准确性。常规的设计方法在仿真分析天线的指标时常采用高斯脉冲来简化放电脉冲以产生电磁波信号,这对天线的指标验证精确性存在着一定的影响。为此,提出基于混合仿真方法的局部放电特高频天线设计方法。首先基于气体放电流注模型计算实际放电产生的脉冲电流;进而提出了综合微观过程放电电流与宏观电磁场传输的混合仿真方法;然后在混合仿真框架下设计了特高频蝶形天线及其仿真模型;最后通过仿真和高压试验验证了所提方法的有效性。
The performance of ultra high frequency(UHF)antennas determines the sensitivity and accuracy of partial discharge electromagnetic wave detection.The conventional design method uses commonly used Gaussian pulses to simplify the discharge pulse and generate electromagnetic wave signals when simulating and analyzing antenna indicators,which has a certain impact on the accuracy of antenna indicator verification.Therefore a design method for partial discharge UHF antennas based on hybrid simulation methods was proposed.Firstly,the pulse current generated by actual discharge was calculated based on the gas discharge streamer model;furthermore,a hybrid simulation method combining micro process discharge current and macro electromagnetic field transmission was proposed;then,an UHF butterfly antenna and its simulation model were designed within a hybrid simulation framework;finally,the effectiveness of the proposed method was verified through simulation and high-voltage testing.
作者
刘东甲
陶雄俊
刘鸿亮
王安军
陶然
罗林根
Liu Dongjia;Tao Xiongjun;Liu Hongliang;Wang Anjun;Tao Ran;Luo Lingen(Kunming Branch of CSG EHV Transmission Co.,Ltd.,Kunming Yunnan 650217,China;Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《电气自动化》
2025年第1期48-50,共3页
Electrical Automation
关键词
局部放电
特高频
天线
混合仿真
Foster模型
partial discharge
ultra high frequency(UHF)
antenna
hybrid simulation
Foster model
