Development of a Multiport 1+Megawatt Charging System for Medium- and Heavy-Duty Electric Vehicles

Andrew Meintz, Kevin Walkowicz

Research output: NRELManagement


This project, in coordination with Oak Ridge National Laboratory (ORNL) and Argonne National Laboratory (ANL), will create hardware and system models as well as power and charge control methods and hardware to address challenges associated with MW-scale charging infrastructure for MD/HD EVs. The primary objective of this project is to develop solutions to enable 1+ MW charging systems for MD/HD EVs of various vocations to maximize utilization of the vehicles and the all-electric miles travelled and improve the return on investment, ensuring industry and consumer acceptance. The project will design and develop a cost-efficient, modular, and reconfigurable power electronics architecture, leveraging current DOE research activities and team members’ world- class expertise in power electronics, wide bandgap device-based power electronics converters, vehicle charging and energy storage systems, automated wireless charging systems, and grid modernization. This project will generate DOE-owned intellectual property on high-frequency/high-power inverters, high-frequency AC links, novel integrated magnetic structures and planar transformers, vehicle battery pack thermal management, and connecting mechanisms.
Original languageAmerican English
Number of pages9
StatePublished - 2020

Bibliographical note

See the Vehicle Technologies Office Electrification 2019 Annual Progress Report at

NREL Publication Number

  • NREL/MP-5400-78518


  • 1+ MW charging systems
  • electric vehicles
  • MW-scale charging infrastructure


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