摘要
在变流器超同步等工况下,绝缘栅双极晶体管(IGBT)模块中的快恢复二极管(FRD)相比于IGBT更容易老化,因此,对IGBT模块中FRD状态的在线监测至关重要。通过理论与实验研究了FRD正向特性曲线的温度依赖性,并定义了准温度补偿点(TCP)电流,基于此提出了在线监测IGBT模块中FRD键合线老化状态的方法。该方法无需结温测量,只需在FRD正向特性曲线的准TCP电流下监测正向压降,即可对FRD和整个IGBT模块的健康状态进行评估。实验测量得到了IGBT和FRD芯片的输出/正向特性曲线在不同键合线数量下的差异,验证了该方法的有效性,并与IGBT芯片的测量结果进行了对比,发现该方法在应用于FRD时灵敏度更高。
In some working conditions such as the converter super-synchronous mode,the fast recovery diode(FRD)in the insulated gate bipolar transistor(IGBT)module is more likely to age than the IGBT.Therefore,online monitoring of the state of the FRD in the IGBT module is critical.The temperature dependence of the forward characteristic curve of the FRD was studied through theory and experiments.The quasi-temperature compensation point(TCP)current was defined.Based on this,a method for online monitoring of the aging state of FRD bonding wires in IGBT modules was proposed.This method needs no measurement of the junction temperature but monitoring the forward voltage under the quasi-TCP current of the FRD forward characteristic curve,and the health status of the FRD and the whole IGBT module can be evaluated.The difference of the output/forward characteristic curves of the IGBT and FRD chip with different number of bonding wires was measured.The effectiveness of the method was verified.Compared with the measurement results of the IGBT chip,this method is more sensitive when being applied to FRD.
作者
应晓亮
陈杰
邓二平
贺之渊
杨艺烜
李强
赵志斌
黄永章
Ying Xiaoliang;Chen Jie;Deng Erping;He Zhiyuan;Yang Yixuan;Li Qiang;Zhao Zhibin;Huang Yongzhang(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University),Beijing 102206,China;Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102209,China)
出处
《半导体技术》
CAS
北大核心
2019年第12期967-975,982,共10页
Semiconductor Technology
基金
国家自然科学基金委员会-国家电网公司智能电网联合基金项目(U1766219)
中央高校基本科研业务费专项资金资助项目(2019MS001)
