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High-Performance 300 kW 3-Phase SiC Inverter Based on Next Generation Modular SiC Power Modules

Matthew Feurtado, Brice McPherson, Daniel Martin, Ty McNutt, Marcelo Schupbach, W. A. Curbow, Jonathan Hayes, Brett Sparkman
May 08, 2019
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High Performance 300 kW 3 Phase SiC Inverter Based on Next Generation Modular SiC Power Modules

Wolfspeed presents a new high-performance, low-cost, compact 3-phase inverter based on next generation power modules which are specifically optimized to fully utilize Wolfspeed’s third generation of Silicon Carbide (SiC) MOSFETs. The inverter was designed with a holistic approach with careful consideration of module specifications, busbar technology, DC link capacitors, and a high-performance thermal stackup. Parasitic elements of all critical components including the module, busbar, and capacitors are validated to ensure the lowest overall stray inductance. The XM3 module is 60% by volume smaller than equivalent power rated modules which enables the inverter to achieve a power density of 32 kW/L. The unit is tested under application conditions with an 800 V DC bus and 360 A phase current.

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