The present invention relates to a power converter for charging a battery of a neighborhood electric vehicle (NEV). More specifically, the present invention relates to a power converter for charging a battery of a neighborhood electric vehicle, which integrates an LLC series resonant converter to a conventional phase shift full bridge converter. According to the present invention, the power converter has the effect of widening a zero voltage switching operation range, reducing the size of a filter inductor, and reducing voltage stress of a rectification diode. Also, the present invention has the effect of increasing battery charging efficiency since power conversion efficiency is increased.
본 발명은 근거리 저속 전기자동차(Neighborhood Electric Vehicle, NEV)의 배터리 충전을 위한 전력변환기에 관한 것으로, 더욱 상세하게는, 기존의 위상변이 풀 브리지 컨버터(Phase shift Full bridge Converter)에 LLC 직렬 공진 컨버터(LLC Series Resonant Converter)를 통합한 근거리 저속 전기자동차 배터리 충전을 위한 전력변환기에 관한 것이다. 본 발명에 의하면 영전압 스위칭 동작 범위가 넓어지고, 필터 인덕터(filter inductor)의 사이즈가 감소하며, 정류 다이오드의 전압 스트레스를 감소시킬 수 있는 효과가 있다. 또한, 본 발명에 의하면 전력변환 효율이 높아지게 되어 배터리 충전 효율성도 높아지게 되는 효과가 있다.
Power Converter for Charging Battery of Neighborhood Electric Vehicle
근거리 저속 전기자동차의 배터리 충전을 위한 전력변환기
23.12.2016
Patent
Elektronische Ressource
Koreanisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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