Power Loss Analysis of Full-Bridge LLC Resonant Converter Using Enhanced Time Domain Analysis Method

향상된 Time Domain Analysis 기법을 이용한 Full-Bridge LLC 공진형 컨버터의 전력 손실 해석
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초록

This paper proposes a method for analyzing power loss in a full-bridge LLC resonant converter based on the enhanced Time-Domain Analysis (TDA) technique. The proposed enhanced TDA method demonstrates that the power loss in an LLC resonant converter can be expressed through a complete equation. The necessary initial values are represented in equations, showing a deviation of less than 5% compared to simulation results. Furthermore, based on an 8.4kW full-bridge LLC resonant converter prototype, the proposed method and experimental values are compared in terms of efficiency across different loads, with a maximum error of 1.7% under light loads, while exhibiting highly similar values in other regions.

키워드

LLC Resonant ConverterPower Loss AnalysisTDA methodWBG semiconductorElectric load lossPower convertersResonant convertersTime division multiple access
제목
Power Loss Analysis of Full-Bridge LLC Resonant Converter Using Enhanced Time Domain Analysis Method
제목 (타언어)
향상된 Time Domain Analysis 기법을 이용한 Full-Bridge LLC 공진형 컨버터의 전력 손실 해석
저자
Kim, Keon-HeePark, Su-SeongLee, Dong-GeunKim, Rae-Young
DOI
10.5370/KIEE.2025.74.7.1237
발행일
2025-07
유형
Article
저널명
전기학회논문지
74
7
페이지
1237 ~ 1247