| Title |
Optimal Design of High-Frequency Transformer for LLC Resonant Converter based on NSGA-II Algorithm for Accelerated Design Time |
| Authors |
차명준(Myeong-Jun Cha) ; 박수성(Su-Seong Park) ; 전선호(Seon-Ho Jeon) ; 김래영(Rae-Young Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2024.73.1.74 |
| Keywords |
High-Frequency Transformer; LLC Converter; NSGA-II Algorithm; Optimal Design |
| Abstract |
This paper proposes an optimal design method to minimize the volume and losses of the frequency converter for achieving high efficiency and high density in LLC resonant converters. Specifically, we focus on reducing the volume and losses of the high-frequency transformer, utilizing the Non-Dominated Sorting Genetic Algorithm II (NSGA-II) for this purpose. The proposed method, in contrast to global search methods exploring all possibilities, efficiently acquires Pareto Set values using NSGA-II, thereby reducing design time. The design process was conducted using Matlab, and the results obtained from applying the algorithm were compared with those from global search in terms of design time and accuracy. Additionally, the optimal design points were validated through experimentation. |