一种变流用空芯脉冲变压器的特性研究  

Research of Coreless Pulsed Transformer for Current Conversion

作　　者：王风华[1] WANG Feng-hua(State Grid Electric Power Research Institute Wuhan Nari limited liability company,Wuhan 4730074,China)

机构地区：[1]国网电力科学研究院武汉有限责任公司,湖北武汉4730074

出　　处：《新型工业化》2017年第11期11-17,共7页The Journal of New Industrialization

摘　　要：空芯变压器具有功率容量大、结构简单、体积小等特点。本文利用其变流特性,在脉冲功率领域冲击大电流装置中用来减小开关管的电流上升率。本文首先介绍了空芯脉冲变压器的结构与基本原理,然后建立了其变流系统的等效电路,并通过电路仿真对等效电路进行了验证。之后,设计了一台空芯脉冲变压器,并计算了其相应的电路参数。随后,通过实验证明了其在变流系统中对减小开关管电流变化率的作用。此外,讨论了额外的铁芯对于空心脉冲变压器性能的影响。通过上述研究,为变流用空芯脉冲变压器的设计提供了参考。Coreless pulsed transformer has characteristics of high power,simple structure and small volume.In this paper,the current transformation ability of coreless transformer is utilized to relieve the current slope in Silicon Controlled Rectifier(SCR)of pulsed power system.First,the structure and fundamental principle of coreless pulsed transformer are introduced.Afterward,equivalent electric circuit is proposed to investigate the fundamental of coreless transformer and verified by simulation.And then,a prototype of coreless transformer is designed and built which electric parameters are calculated.Accordingly experiment is carried out to verify the ability of relieving current slope in SCR.Besides,the effect of extra iron core in transformer on current transformation ability is discussed.The research above provides reference standard in designing coreless pulsed transformer.

关 键 词：空芯变压器 脉冲功率 冲击大电流 开关管 电流上升率 

分 类 号：TM417[电气工程—电器]