微网快速开关系统驱动电路的研究

针对新型微网系统FREEDM(Future Renewable Electric Energy Delivery and Management)中的快速开关系统,提出了一种新型的IGBT驱动控制电路。将IGBT应用于FREEDM的快速开关系统中,根据其在不同故障状态下的不同关断特性,利用集电极退饱和原理,研究设计了具有双故障检测支路的IGBT驱动控制电路,从而保证IGBT在FREEDM中的可靠关断。最终通过Saber仿真和实验验证了驱动控制电路能够在各故障状态下可靠地关断IGBT。

A Study on the Drive Circuit in the Fast Switching System of Micro Grid

With respect to the fast switching system in the new micro grid system FREEDM (Future Renewable Electric Energy Delivery and Management),this paper proposes a new IGBT drive control circuit.The IGBT is used in the FREEDMfast-switching system.Based on its different switching-on/off characters in different fault conditions,by using collector off-saturation principle,this paper gives a design of an IGBT drive control circuit with double fault detection branches,thus ensuring reliable switching-on/off of the IGBT in the FREEDM.Finally,through Saber simulation and experiment,it is verified that the drive control circuit can reliably switch off the IGBT in different fault conditions.