绝缘栅双极晶体管固体开关技术研究
Research on IGBT solid state switch
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摘要: 采用二只1.2kV,75A的绝缘栅双极晶体管(IGBT)串联,对用于加速器的IGBT固体开关技术进行了研究;通过采取动态电压和静态电压平衡措施来解决IGBT串联中的瞬态电压平衡问题。在不同工作条件下,串联IGBT开关工作性能稳定,重复性好。在纯阻性负载上得到了上升时间约300ns、下降时间约164μs、峰值电压1.8kV的输出。Abstract: The experiments on the IGBT solid state switch for induction accelerator was carried out with two series 1.2kV, 75A IGBT (GA75TS120U). The static and dynamic balancing modules were carried out with metal oxide varistores, capacities and diodes in order to suppress the overvoltage during IGBT on and off. Experimental results show that IGBT solid state switch works very stable under the different conditions. It can output peak voltage 1.8kV, rise time 300ns, fall time 1.64μs waveforms on the loads. The simulation data using OrCAD are in accord with experimental results except the rise time.
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Key words:
- series /
- igbt /
- solid state switch
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