Control of SiC Based Integrated DC-DC Powertrain Charger for Electric Vehicles

Anwar, Saeed; Costinett, Daniel; Mukherjee, Subho; Chowdhury, Shajjad

doi:10.1109/ECCE44975.2020.9236249

Control of SiC Based Integrated DC-DC Powertrain Charger for Electric Vehicles

Conference · Thu Oct 01 04:00:00 EDT 2020

DOI:https://doi.org/10.1109/ECCE44975.2020.9236249· OSTI ID:1684677

Anwar, Saeed ^[1]; Costinett, Daniel ^[2]; ^[2]; Chowdhury, Shajjad ^[2]

University of Tennessee, Knoxville (UTK)
ORNL

In this paper, an automated controller for an integrated, reconfigurable dc-dc converter for plugin electric vehicles (EVs) is presented. The integrated converter combines both an interleaved boost converter and dual active bridge (DAB) converter, sharing magnetics and switching devices. The converter switches between operating modes using the existing battery management system (BMS) contactors. The integrated converter operates in isolated DAB mode during battery charging operation. During traction operation, the integrated converter is operated in interleaved boost mode for heavy load and DAB mode during light load, high voltage operation. An online transition algorithm is used to transition from interleaved boost mode to DAB mode with minimal bus distortion. The automated controller selects the operating mode and inverter bus voltage at different torque-speed conditions to get maximum overall traction drive efficiency. An experimental prototype of the integrated converter demonstrates the automated controller functionality.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1684677

Country of Publication:: United States

Language:: English

References (16)

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