基于IGBT触发控制的感应式操作冲击电压产生技术  

Switching Impulse Generator Based on IGBT Triggering Control and Transformer Induction

作　　者：张崇兴[1] 任明[1] 董明[1] 叶日新[1] 黄军凯 陈仕军 

机构地区：[1]电力设备电气绝缘国家重点实验室(西安交通大学),陕西省西安市710049 [2]贵州电力试验研究院,贵州省贵阳市550005

出　　处：《电网技术》2015年第9期2606-2613,共8页Power System Technology

基　　金：中央高校基本科研业务费专项资金资助(EIPE13311);中国博士后基金(2014M560777)~~

摘　　要：为研究体积小、移动方便并易于现场使用的操作冲击电压产生技术,提出了基于绝缘栅双极晶体管(insulated gate bipolar transistor,IGBT)触发控制并利用变压器感应作用产生冲击电压的方法,研制出了一种新型的操作冲击电压产生装置。与传统采用Marx系统产生操作冲击的方法相比较,采用IGBT来替代传统火花球隙,便于准确控制冲击电压的触发,且电压输出过程中无强烈的电磁干扰;变压器感应升压的方法能够有效提高电压输出等级,通过调整原边电路参数来分别产生不同的双指数和振荡操作波的方式能够提高更换波形的效率。试验结果表明,采用上述方法产生的操作波输出效率高、波形输出稳定畸变小,并且避免了球隙击穿造成的较大电磁干扰和声响,能较好地应用于现场的冲击电压试验,具有良好的应用前景。In order to study switching impulse generation and generator compact, easy to move and use on site, a new method is proposed, which could generate switching impulse with IGBT triggering control and transformer electromagnetic induction, and then the switching impulse generator is developed. Compared with traditional switching impulse generation method based on Marx with traditional spark gap, IGBT can accurately control impulse voltage trigger without strong electromagnetic interference, generator size is remarkably reduced by using transformer electromagnetic induction to boost impulse’s amplitude, and the efficiency of changing waveform is improved by adjusting primary side circuit parameters to generate different double exponential and oscillating switching impulse respectively. Experimental results show that generated switching impulse has advantages of high output efficiency, stable output and small waveform distortion. Besides, this generator eliminates strong electromagnetic interference and noise caused by sphere gap breakdown. Therefore, it can be applied to impulse voltage withstand test well on site and has good application prospect.

关 键 词：冲击电压发生器 操作冲击 变压器 绝缘栅双极型晶体管 

分 类 号：TM51[电气工程—电器]