Hardware-in-the-loop (HIL) Integrated Design Platform for High-frequency Controller Development of WBG Power Converters

Wide bandgap (WBG) power devices have challenges such as fast and accurate device models and high-frequency feedback control considering design and prototyping of power converter systems. In this paper, an integrated hybrid environment is used for GaN-based non-inverting buck-boost (NIBB) converter design with high-frequency feedback control. The hybrid environment consists of PLECS, and Xilinx Vitis Model Composer integrated into MATLAB. The circuit model of the GaN-based converter developed in PLECS, and the high-frequency feedback control modelled in Xilinx Vitis Model Composer. The entire system model was validated through the FPGA Hardware-in-the-loop (HIL) simulation. Further, FPGA-based feedback control validated through experimental tests for GaN dc-dc converter system.