基于dv/dt参数提取的变流器IGBT驱动自调节技术  

Self-regulating Technology of IGBT Driver for Converter Based on dv/dt Parameter Extraction

作　　者：李文鹏 周宇豪 史志富 董鑫媛 张存凯 张若冰 LI Wenpeng;ZHOU Yuhao;SHI Zhifu;DONG Xinyuan;ZHANG Cunkai;ZHANG Ruobing(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [2]北京纵横机电科技有限公司,北京100094

出　　处：《铁道机车车辆》2024年第3期97-104,共8页Railway Locomotive & Car

基　　金：中国铁道科学研究院集团有限公司青年课题(2020YJ187)。

摘　　要：绝缘栅双极晶体管(IGBT)作为轨道交通变流器关键部件,对其驱动的调节可以显著改善dv/dt、开关损耗等影响变流器运行的重要参数。为此提出了一种基于dv/dt参数提取的变流器IGBT驱动自调节技术。首先基于IGBT驱动等效电路建立数学模型,分析了dv/dt、门极电阻、开关损耗三者之间的数学关系。其次以dv/dt参数的限制为主要优化目标,开关损耗的平衡为约束条件,提出一种基于Bang-Bang控制的自调节控制策略从而实现门极电阻主动切换,并在双脉冲测试中整定控制策略重要参数。最后通过有无自调节技术对比试验测试,验证了本技术的有效性。Insulation-gate bipolar transistor(IGBT)is a key component of train traction converters,adjustment of IGBT driving parameters can significantly improve the dv/dt,switching loss and other important parameters that affect the operation of converters.Therefore,a self-regulating technology of converter IGBT driver is proposed based on dv/dt parameter extraction.Firstly,the mathematical model based on IGBT drive equivalent circuit is built,the mathematical relationship among dv/dt,gate resistance and switching loss is analyzed.Secondly,with the main optimization goal that restricting dv/dt parameters,the constraint conditions of balancing switching loss,an adaptive control strategy based on Bang-Bang control is proposed,which can change gate resistance actively,and the important parameters of the control strategy are set through a double-pulse test.Finally,the effectiveness of the technology is verified by the comparative test with or without self-regulating technology.

关 键 词：绝缘栅双极晶体管(IGBT) dv/dt 驱动自调节 BANG-BANG控制 

分 类 号：U264.6[机械工程—车辆工程]