摘要
二极管中点钳位NPC(neutral point clamped)三电平逆变器具备较低的开关应力、谐波分量和较好的抗干扰能力,促使其成为光伏、储能等新能源领域DC-AC变换器的主要拓扑之一。针对大功率应用场景中普遍采用的NPC三电平IGBT功率半导体模块开展研究,分析NPC三电平功率模块的换流回路,并据此给出对应换流回路的寄生参数精准仿真评估方法。依据换流回路寄生参数最小原则,设计适用于NPC三电平功率半导体模块的动态特性测试电路。根据换流回路以及电路工作原理,设计NPC三电平功率模块的驱动电路,并给出增强驱动电流、防直通及死区时间可调的驱动方案。最后,通过对NPC三电平IGBT模块的动态测试,详细评估了不同工况下功率器件的动态损耗。
Owing to its advantages including lower switching stress,harmonic components and a better anti-interference capability,the diode neutral point clamped(NPC)three-level inverter has become a prominent topology for DC-AC converters used in new energy fields such as photovoltaic and energy storage.The NPC three-level insulated gate bipolar transistor(IGBT)power semiconductor module which is widely used in high-power applications is studied.The commutation circuit in the NPC three-level power module is analyzed,and a precise simulation and evaluation method for the corresponding parasitic parameters is given.According to the principle of minimizing the parasitic parameters of the commutation circuit,a dynamic characteristic test circuit suitable for the NPC three-level power semiconductor module is designed.Based on the commutation circuit and the operating principle of circuit,a drive circuit for the NPC three-level power module is designed,and a driving scheme that enhances drive current,prevents shoot-through and allows for adjustable dead time is formulated.Finally,through dynamic testing of the NPC three-level IGBT module,a comprehensive assessment of the dynamic loss in power devices under various operating conditions is conducted.
作者
于浪浪
李贺龙
殷千辰
韩亮亮
YU Langlang;LI Helong;YIN Qianchen;HAN Liangliang(School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,China;CPSS)
出处
《电源学报》
CSCD
北大核心
2024年第3期146-155,共10页
Journal of Power Supply
关键词
IGBT模块
双脉冲测试
门极驱动
Insulated gate bipolar transistor(IGBT)module
double-pulse test
gate driver
