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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2025.2
- 수록면
- 54 - 64 (11page)
- DOI
- 10.6113/TKPE.2025.30.1.54
이용수
초록· 키워드
오류제보하기
Resonant converters are mainly used due to their high power density and high efficiency in electric vehicle (EV) charging systems. As the battery voltage of an EV increases from 400 V to 800 V, the wide range of power voltage of resonant converters becomes a great advantage. Among resonant converters, series resonant converters (SRCs) are widely used due to their high efficiency caused by low circulating current. However, due to the characteristics of SRC, the maximum voltage gain is 1, and high efficiency is obtained by operating at the resonance point. Therefore, if the goal is to achieve high efficiency at the resonant point, then pulse width modulation (PWM) control is required to obtain a wide output voltage range. Through the PWM control, the secondary-side full-bridge rectifier can be converted into a double-voltage rectifier to obtain double voltage gain curves. As a result, a wide output voltage range and high efficiency can be obtained simultaneously. However, in the SRC operated by PWM control, achieving zero voltage switching (ZVS) operation may be difficult due to low magnetization current circulation, which may increase switching loss and reduce converter efficiency. This study proposes a control technique to achieve full-range ZVS operation in SRC operated with PWM control for obtaining a wide output voltage range.
목차
Abstract
1. 서론
2. SRC의 PWM 제어 및 SR 동작
3. 제안하는 ZVS를 활용한 PWM 제어
4. 시뮬레이션
5. 실험
6. 결론
References
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