Design Methodology and Packaging Integration of Air-cooled SiC Inverter

被引：0
|
作者：
Zeng Z. [1 ]
Wang J. [1 ]
Chen H. [2 ]
Ou K. [1 ]
Yu Y. [1 ]
Zhang X. [3 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University), Shapingba District, Chongqing
[2] Department of Electrical Engineering, University of Arkansas, Fayetteville
[3] School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
来源：
| 1829年 / Chinese Society for Electrical Engineering卷 / 40期
关键词：
Air-cooled SiC inverter; Design methodology; Multi-physics modeling; Packaging integration;
D O I：
10.13334/j.0258-8013.pcsee.190634
中图分类号：
学科分类号：
摘要：
The air-cooled SiC inverter removes the complicated liquid-cooling system and makes the powertrain of electric vehicle more compact. However, the basic design approach and critical integration routine of the air-cooled SiC inverter are unclear. A hierarchical co-design approach was proposed for the air-cooled SiC inverter in power module, DC-link capacitor and heat sink levels. Concerning the power module, the multi-physics modeling and simulation were employed to explore the electro-thermal-mechanical stresses in the power module. Besides, some improved power module packaging guidelines were proposed. Concerning the DC-link capacitor, the mathematical model was established to understand the ripple current capability of capacitor depended on capacitance. Taking ripple voltage, ripple current and cost into account, a strategic selection was proposed to determine the material and capacitance of capacitor for DC-link supporting. Concerning the heat sink, by using the electro-thermal co-simulation, the thermal resistance of the air-cooled heat sink was modeled. Then, the structure and material of the heat sink were optimized. Based on the proposed hierarchical co-design routine, the prototypes of six-in-one SiC power module and air-cooled SiC inverter were fabricated. Experimental results were presented to demonstrate the feasibility of the designed and manufactured air-cooled SiC inverter. It is helpful to provide a new perspective in the field of SiC inverter. © 2020 Chin. Soc. for Elec. Eng.
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页码：1829 / 1842
页数：13
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