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纳秒脉冲下聚合物电树枝引发实验方法
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Experimental method of electrical tree initiation in polymer under high voltage nanosecond pulses

摘    要
借鉴直流、交流的研究经验, 比较了纳秒脉冲条件下几种不同的电树枝老化实验方法。对单针-板电极和多针-板电极在纳秒脉冲下实验结果的一致性进行考察, 结果表明,多针-板电极系统可以在提高实验效率的同时保证结果的准确性。采用步进法和累加法进行了不同频率下聚苯乙烯电树枝引发实验,结果表明:两种方法得到的纳秒脉冲下聚苯乙烯电树枝引发电压-频率特性基本一致, 在50~500 Hz范围内, 引发电压随频率的升高而降低;在500~800 Hz范围内, 引发电压随频率的升高而增加。最后讨论了对于不同脉冲功率装置中绝缘材料老化试验设计的方法。
标    签 电树枝   老化   纳秒脉冲   引发电压   实验方法   electrical tree   aging   nanosecond pulse   initiation voltage   experimental method  
 
Abstract
The point-plane geometry with iron electrode system was employed in the electrical tree initiation experiment under high voltage nanosecond pulses, with both single and multiple needle electrodes. The result of the latter electrode scheme has a good correlation with that of the former, with higher efficiency at the mean time. Electrical tree initiation experiments were done by the step-up method and accumulation method at different frequencies, and the initiation characteristics of polystyrene were derived. The initiation voltage drops as the pulse frequency rises up from 50 Hz to 500 Hz, while it increases as the frequency rises in the range of 500 Hz to 800 Hz. Aging experiments for different pulsed power utilities were also designed.

中图分类号 TM855

 
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所属栏目 脉冲功率技术

基金项目 国家自然科学基金重点项目(50437020);国家自然科学基金项目(50907068);清华大学电力系统及发电设备控制和仿真国家重点实验室开放基金项目(SKLD09KM15)

收稿日期 2010/7/1

修改稿日期 2010/10/22

网络出版日期

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备注张伟(1986—), 男, 硕士研究生, 研究方向为高电压绝缘技术

引用该论文: Zhang Wei,Wang Jue,Zhang Dongdong,Ouyang Wenmin,Yan Ping,Gao Yinghui. Experimental method of electrical tree initiation in polymer under high voltage nanosecond pulses[J]. High Power Laser and Particle Beams, 2011, 23(4): 1117~1122
张伟,王珏,张东东,欧阳文敏,严萍,高迎慧. 纳秒脉冲下聚合物电树枝引发实验方法[J]. 强激光与粒子束, 2011, 23(4): 1117~1122


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