FPGA-Based High-Speed CHiL Simulations of Dual Active Bridge Converter Employing LB-LMC

In this paper, a field programmable gate array (FPGA)-based real-time model of a dual active bridge (DAB) DC-DC converter is presented which is developed and deployed for a very small simulation time-step (50 ns) to capture the fast dynamics of the switching converter. The converter network is solve...

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Bibliographic Details
Main Authors: Chowdhury, Dhiman, De La O, Castulo A., Biswas, Md Multan, Difronzo, Michele, Ginn, Herbert L., Benigni, Andrea
Format: Conference Proceeding
Language:English
Subjects:
Bridge circuits
CHiL
communication
Computational modeling
controller
DC-DC power converters
dual active bridge (DAB)
EMTP
FPGA
Heuristic algorithms
high-speed computations
LB-LMC model solver
phase shift modulation (PSM)
real-time
Switches
Switching converters
very small time-step
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Summary:In this paper, a field programmable gate array (FPGA)-based real-time model of a dual active bridge (DAB) DC-DC converter is presented which is developed and deployed for a very small simulation time-step (50 ns) to capture the fast dynamics of the switching converter. The converter network is solved using an electromagnetic transient program (EMTP) methodology, referred to as latency based linear multi-step compound (LB-LMC). The switching converter is modeled applying the combined knowledge of state-space discretization, resistive companion theory and nodal analysis. A serial communication interface is designed linking two Xilinx FPGA evaluation boards forming a controller hardware-in-the-loop (CHiL) framework. Results obtained from the FPGA testbed are compared with software simulations.
ISSN:2473-0165
DOI:10.1109/PEMC51159.2022.9962927