Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Optimal MOSFET Selection Method of Dual Active Bridge Converter for Electric Vehicle Fast Charger based on Deep Learning
Authors Dong-In Lee ; Se-In Kim ; In-Seok Choi ; Han-Shin Youn ; Myeong-Hoon Lee
DOI https://doi.org/10.6113/TKPE.2024.29.6.493
Page pp.493-502
ISSN 1229-2214
Keywords DAB(Dual Active Bridge); Deep Learning; DNN(Deep Neural Network); EV(Electric Vehicle); Fast Charger
Abstract This paper proposes a novel method based on deep learning to select the optimal MOSFET in dual active bridge converters used in electric vehicle fast chargers. Although various studies have applied artificial intelligence to dual active bridge converters, most of them focus on designing transformers or deriving optimal operating points. However, an optimal switch that minimizes power loss across the entire operating area must be selected to design a high power dual active bridge converter and achieve high efficiency. The proposed method uses the power loss results of simulation as training data for deep learning, allowing the model to generate a power loss profile data and select the optimal MOSFET. The validity of the proposed method is verified by comparing the power loss estimates from the deep learning model with the actual power loss from the simulations.