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DOE OSTI · 2546938

Development and Experimental Validation of a High-Power DC Distribution Testbed for Advanced Charging Infrastructure and Energy Management

Khan, Md Shafquat [National Renewable Energy Lab., Golden, CO (United States)]·Thurlbeck, Alastair [National Renewable Energy Lab., Golden, CO (United States)]·Watt, Edward [National Renewable Energy Lab., Golden, CO (United States)]·Kisacikoglu, Mithat [National Renewable Energy Lab., Golden, CO (United States)] (ORCID:000000016951653X)·Ucer, Emin [National Renewable Energy Lab., Golden, CO (United States)]·Meintz, Andrew [National Renewable Energy Lab., Golden, CO (United States)] (ORCID:0000000185150988)·Mahmud, Rasel [National Renewable Energy Lab., Golden, CO (United States)]
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Abstract

This paper presents the development of a hardware testbed for DC-distributed high-power charging (HPC) stations. As DC distributed solutions emerge as a viable solution to optimize HPC site operations, challenges such as interoperability, protection, and seamless integration of distributed energy resources (DER) persist. These issues underscore the need for a robust testing facility to investigate compliance of available commercial off-the-shelf (COTS) market devices. The developed testbed features a DC-distributed charging hub including a charger, emulated energy storage system (ESS), and site level communication and controller implementation. It facilitates the testing of COTS hardware, charger prototypes, standards validation and site energy management system (SEMS) controllers at rated power. This paper details the development of the charging infrastructure platform, implementation of communication system, validation of different SEMS algorithms, and understanding improvements required for future expansion. Using the developed testbed, interoperability gaps for SEMS implementation with multi-vehicle concurrent charging via a multi-port charger are experimentally observed. Aimed at supporting the transition to large-scale EV charging infrastructure deployment and DER integration, this testbed plays a crucial role in conformity testing of COTS device interoperability.

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24 POWER TRANSMISSION AND DISTRIBUTION32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATIONDC distributionENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION,POWER TRANSMISSION AND DISTRIBUTIONESS integrationEVSEP-HILhardware testbedhigh power chargingsite energy management system (SEMS)

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Khan, Md Shafquat [National Renewable Energy Lab., Golden, CO (United States)], Thurlbeck, Alastair [National Renewable Energy Lab., Golden, CO (United States)], Watt, Edward [National Renewable Energy Lab., Golden, CO (United States)], Kisacikoglu, Mithat [National Renewable Energy Lab., Golden, CO (United States)] (ORCID:000000016951653X), Ucer, Emin [National Renewable Energy Lab., Golden, CO (United States)], Meintz, Andrew [National Renewable Energy Lab., Golden, CO (United States)] (ORCID:0000000185150988), Mahmud, Rasel [National Renewable Energy Lab., Golden, CO (United States)]. 2025-03-11. Development and Experimental Validation of a High-Power DC Distribution Testbed for Advanced Charging Infrastructure and Energy Management. https://doi.org/10.1109/tia.2025.3550147

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