A Compact 250 kW Silicon Carbide MOSFET based Three-Level Traction Inverter for Heavy Equipment Applications
A Compact 250 kW Silicon Carbide MOSFET based Three-Level Traction Inverter for Heavy Equipment Applications
复制标题
适用于重型设备应用的基于紧凑型 250 kW 碳化硅 MOSFET 的三电平牵引逆变器
DOI：
10.1109/itec.2018.8450172
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
John R. Fraley
中科院分区：
文献类型：
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作者：
Zhongjing Wang;M. Mahmud;Muhammad Hammad Uddin;B. Mcpherson;Brett Sparkman;Yue Zhao;H. Mantooth;John R. Fraley
需要持续努力，以实现重型设备电气化的积极目标，例如，重型越野车，由于许多新兴的挑战，这是不同于那些在汽车行业。重型设备制造商越来越多地投资于新一代电力电子技术，以在恶劣环境下实现高性能和可靠性目标，同时降低油耗并保持成本竞争力。针对一台250 kW三相三电平（3-L）T型牵引逆变器，提出了一种整体功率电子电路设计方案，以实现4倍功率密度和98%峰值效率。建议的T型逆变器的设计使用最好的碳化硅（SiC）功率模块。最重要的是，采用多目标优化方法来权衡SiC器件类型（650、900和1200 V）、直流总线电压、开关频率和无源元件尺寸对体积功率密度（kW/l）的影响。在这项工作中，T型逆变器系统的设计指导，包括损耗计算，直流环节电容器的选择，热管理解决方案，和总线结构。此外，硬件在环仿真研究进行了验证的牵引逆变器的控制系统设计的性能。
A sustained effort is required to realize the aggressive targets of electrification of heavy equipment, e.g., the heavy-duty off-road vehicles, due to numerous emerging challenges, which are different from those in the automotive industry. Heavy equipment manufacturers are increasingly investing in new generation of power electronics technology to fulfill the high performance and reliability targets under harsh environments while reducing fuel consumption and staying cost competitive. In this work, a holistic power electronic circuits design is proposed to achieve 4× power density at 98% peak efficiency for a compact 250 kW three-phase three-level (3-L) T-type traction inverter. The proposed T-type inverter is designed using the best in class silicon carbide (SiC) power modules. Most importantly a multi-objective optimization approach to trade the volumetric power density (kW/l) against SiC device type (650, 900 and 1200 V), dc bus voltage, switching frequency, the size of the passives components. T-type inverter system design guidance is given in this work, including loss calculation, dc-link capacitor selection, thermal management solution, and bussing structure. In addition, the hardware-in-the-Ioop simulation study is performed to validate the performance of the control system designed for the traction inverter.