一种热等离子体发生器电源的研制  

Investigation of a Power Supply for the Plasma Source

作　　者：吴彦[1] 李琛[1] 李国锋[1] 

机构地区：[1]大连理工大学电气工程与应用电子技术系,辽宁大连116024

出　　处：《电源技术应用》2008年第6期11-14,共4页Power Supply Technologles and Applications

摘　　要：等离子体因其高温高导热特性对污染物有很高的处理效率,尤其是对难处理污染物及特殊要求污染物。直流拉弧放电是产生热等离子体的主要方法之一,通过高频变压器和电压电流反馈装置可得到满足电弧伏安特性的直流大电流,由此可通过电弧放电获得稳定高效的等离子体源,在污染烟气处理等领域有良好的应用前景。通过利用IGBT逆变技术来获得适于环保、焊接等应用的直流大电流,研制成能产生0～30A电流的直流等离子体发生器。The plasma has high treatment efficiency because of its high temperature and excellent conductivity for heat to pollutions, especially to pollutions which have peculiar requests and be difficult to deal with. That direct-current arc discharging is one of the main methods of producing plasma. Making use of arc electrical source, the high-frequency transformer ,the voltage feedback device and the current feedback device ,we can get strong direct-current which is fit for the volt-ampere character of electric arc, so it is possible to obtain a stable and high-effect plasma source by the fact that the electric arc discharges, which can be widely used in the contaminated gas treatment fields. We get strong direct-current used in environment protection and welding fields through the IGBT inverting technology, and finally obtain the direct-current plasma source, with current of 0-30A.

关 键 词：等离子体 电弧 IGBT逆变 直流电源 

分 类 号：TM832[电气工程—高电压与绝缘技术]