Controller Hardware-in-the-Loop Modeling and Operation of a High-Power DC Charging Hub

Research output: Contribution to conferencePaper


High-power charging (HPC) concept will be a critical enabler for the wide-scale adoption and integration of electric vehicles (EVs). HPC hubs will have a significant impact on achieving this goal, particularly when considering the charging requirements of next-generation medium and heavy-duty vehicles (MD/HD) used in various vocational scenarios. This emphasizes the significance of evaluating and confirming the technical planning and multi-level operation of HPC hubs through modeling, protocol implementation, and simulation before hardware demonstration. The focus of this study is to develop the architecture, modeling, communication, and real-time controller hardware-in-the-loop (C-HIL) simulation of HPC hubs using the DC distribution system approach. Specifically, this work demonstrates the practical implementation of a custom Smart Energy Management System (SEMS) for a real-time C-HIL HPC hub simulation using the Open Charge Point Protocol (OCPP) for communication. OCPP is implemented on the Node-Red framework and the custom controller is executed in Python. We developed a rule-based controller to demonstrate the proposed approach.
Original languageAmerican English
Number of pages7
StatePublished - 2023
EventIEEE Energy Conversion Congress & Expo - Nashville, Tennessee
Duration: 29 Oct 20232 Nov 2023


ConferenceIEEE Energy Conversion Congress & Expo
CityNashville, Tennessee

NREL Publication Number

  • NREL/CP-5400-86913


  • C-HIL
  • EV-grid integration
  • high-power charging
  • OCPP
  • real-time simulation
  • smart energy management


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