Multiport partial power processing converter with energy storage integration for EV stationary charging

• Analysis of the impact of using partial power processing to reduce cost, volume, and losses of a fast charging station integrating a stationary battery, for e-vehicules.
• Loss budget over a full charging cycle
• Experimental validation

Reduced scale prototype

• DC-link on grid side: 400 V
• eV battery voltage: 260 - 340 V
• 2.7 kW
• Peak measured efficiency: 98.5 %, mean efficiency over a full charge cycle: 98.15%
• Based on SiC (grid and eV ports) and Si (ESS port) MOSFETs

USPs

• Ultra high efficiency: 73% peak power loss reduction
• -25% system cost
• High power density
• bidirectionnal power transfert
• Stationary energy storage integration
• Isolated