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논문 기본 정보

자료유형
학술대회자료
저자정보
Jiho. Kwak (Korea Advanced Institute of Science and Technology) Ki-Bum. Park (Korea Advanced Institute of Science and Technology) In Gwun. Jang (Korea Advanced Institute of Science and Technology)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2023-ECCE Asia
발행연도
2023.5
수록면
1,370 - 1,377 (8page)

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초록· 키워드

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Recently, EVs (Electric Vehicles) increased their pack voltage from 400V to 800V. It has shortened the charging time, but EVs with 800V now have to carry an extra boost converter with their OBCs (onboard chargers) since most fast chargers support only 400V systems. This consumes extra weight and volume from EVs. Therefore, chargers need to handle both 400V and 800V systems to make EVs more competitive in the market. However, the chargers’ efficiency will decrease due to the broader expected output voltage range. As a solution, this paper suggests a Topology morphing technique. Nonetheless, the main scope of this paper is the overcurrent protection of such applications since there isn’t much research about overcurrent protection schemes for topology morphing. This paper proposes diode clamping of a resonant capacitor in a capacitor-shared LLC converter applicable to EV chargers for overcurrent protection with simulation results.

목차

Abstract
I. INTRODUCTION
II. TOPOLOGY MORPHING
III. CAPACITOR SHARING AND DIODE CLAMPING
IV. SIMULATION
V. CONCLUSION REMARKS AND FUTURE WORK
REFERENCES

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