1. Development of high power SiC devices for rail traction power systems.
- Author
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Liu, Guoyou, Wu, Yibo, Li, Kongjing, Wang, Yangang, and Li, ChengZhan
- Subjects
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SILICON carbide , *ELECTRIC locomotives , *ELECTRIC multiple units , *TRACTION (Engineering) , *METAL oxide semiconductor field-effect transistors - Abstract
Highlights • Reviewed the development of the high power SiC devices. • Device development for the 1.7 kV hybrid SiC power module and all SiC 3.3 kV power module. • SiC SBD and MOSFET chips and modules are manufactured and tested, both static and dynamic testing results are evaluated. • The current challenges of SiC devices and future applications are discussed for the next generation of rail transportation. Abstract Si-based power devices have been widely used in electric locomotive and EMU, however, there are urgent requirements from the industry to have power converters with smaller size and higher performance. To meet such demands, wide band-gap (WBG) devices such as SiC power chips and modules are developed for the traction systems, and a 1.7 kV hybrid SiC power module has been used in Metro system and all SiC 3.3 kV power module has been developed. In this paper, the development of hybrid SiC and all SiC power modules are introduced from the perspectives of devices, modules and applications. SiC SBD and MOSFET chips and modules are manufactured and tested, both static and dynamic testing results are evaluated and showed that SiC devices present better performance and higher efficiency than the traditional Si IGBT modules, especially in the conditions of high temperature and high operation frequency. Based on the developed SiC modules, the urgent demand of traction converters with smaller size and lighter weight can be achieved while present advantages such as higher efficiency, power density, operation temperatures and frequency. The current challenges of SiC devices and future applications are discussed for the next generation of rail transportation. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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