Disclosed is a charging control device for an electric vehicle. According to the present invention, the charging control device for an electric vehicle comprises: a power factor corrector for performing rectification and ripple stabilization on AC power, and boosting or dropping a rectified voltage; a full bridge converter for performing switching using parasitic capacitors of an inductor and a switching element as resonance components; a transformer for inducing a primary side voltage to a secondary side in accordance with an opening and closing operation of the switching element; and a full bridge rectifier for performing rectification on the AC power induced to the secondary side, removing a surge voltage of rectified DC power, and performing ripple stabilization. According to the present invention, since the ripple is reduced by using the inductor and the capacitor with respect to the rectified voltage, the charging efficiency can be improved. In addition, a snubber circuit is formed at a front end of an LC filter to reduce ripples and to remove surge voltages, and thus, the power supply for charging is stably performed, and a lifespan of an output capacitor and a lifespan of a battery are prevented from being shortened.

    전기자동차용 충전제어장치가 개시된다. 본 발명에 의한 전기자동차용 충전제어장치는, 교류 전원에 대해 정류 및 리플 안정화를 수행하며, 정류 전압의 승압 또는 강압을 수행하는 역률 보상기와, 인덕터와 스위칭 소자의 기생 캐패시터를 공진요소로 하여 스위칭을 수행하는 풀 브리지 컨버터와, 스위칭 소자의 개폐동작에 따라 1차측 전압을 2차측으로 유도하는 변압기와, 2차측으로 유도된 교류 전원에 대한 정류를 수행하고, 정류된 직류 전원의 서지 전압을 제거하고, 리플 안정화를 수행하는 풀 브리지 정류기를 포함한다. 본 발명에 따르면, 정류된 전압에 대해 인덕터 및 캐패시터를 이용하여 리플을 감소시키므로 충전 효율을 향상시킬 수 있다. 또한, LC 필터 앞단에 스너버 회로를 구성하여 리플 감소 및 서지 전압 제거가 이루어지므로, 충전을 위한 안정적으로 전원공급이 이루어질 뿐 아니라, 출력 캐패시터의 수명 및 배터리의 수명이 단축되는 것을 방지할 수 있다.


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    Titel :

    Apparatus for controlling electric vehicle charger


    Weitere Titelangaben:

    전기자동차용 충전제어장치


    Beteiligte:
    HYUN SUNG JIN (Autor:in) / KIM MYUNG JIN (Autor:in)

    Erscheinungsdatum :

    2018-03-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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



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