The present invention relates to a non-contact power feeding device for wirelessly charging an electric bicycle, a plug-in hybrid including a pure electric vehicle, or the like. In order to charging efficiency deterioration, which is caused by the required amount of feeding power being rapidly changed according to a change in the distance between a power receiving device provided at the lower part of a vehicle and a power feeding device provided on a road surface, and is caused by a wide range of change in the target amount of feeding power, such that a circuit of the power feeding device operates beyond a high efficiency operation point, the present invention relates to a highly efficient and highly reliable non-contact power feeding device for an electric vehicle, the non-contact power feeding device being capable of employing a power converting means comprising a converter, a bypass unit, a soft switching inverter, and the like so as to achieve maximized efficiency, thereby having a plurality of circuit structures according to a target amount of feeding power, and being capable of improving system safety, charging efficiency and energy efficiency through a control for enabling the inverter to maintain soft switching.

    La présente invention concerne un dispositif d'alimentation sans contact permettant de charger en mode sans fil une bicyclette électrique, un véhicule hybride enfichable comprenant un véhicule électrique pur ou similaire(s). Afin de charger une détérioration de l'efficacité, qui est provoquée par un changement rapide de la quantité de puissance d'alimentation requise en fonction d'un changement de la distance entre un dispositif de réception de puissance disposé au niveau de la partie inférieure d'un véhicule et un dispositif d'alimentation disposé sur une surface de route, et est provoquée par une large plage de changement de la quantité cible de puissance d'alimentation, de sorte qu'un circuit du dispositif d'alimentation fonctionne au-delà d'un point de fonctionnement à haut rendement, la présente invention concerne un dispositif d'alimentation sans contact hautement efficace et hautement fiable pour un véhicule électrique, le dispositif d'alimentation sans contact pouvant utiliser un moyen de conversion de puissance comprenant un convertisseur, une unité de dérivation, un onduleur à commutation douce et similaire(s) de manière à obtenir une efficacité développée au maximum, ce qui permet d'avoir une pluralité de structures de circuit en fonction d'une quantité cible de puissance d'alimentation et de pouvoir améliorer la sécurité du système, l'efficacité de charge et l'efficacité énergétique par l'intermédiaire d'une commande pour permettre à l'onduleur de maintenir une commutation douce.

    본 발명은, 순수 전기차를 비롯한 플러그인 하이브리드 또는 전기자전거 등에 무선으로 충전하는 비접촉 급전장치에 대한 발명이다. 차량 하부에 구비된 수전장치와 노면에 설치된 급전장치가 거리가 변화함에 따라, 요구되는 급전전력량이 급격하게 변할 수 있고, 목표 급전전력량이 넓은 범위에 걸쳐 변화하는 것은 급전장치의 회로가 고효율 운전점을 벗어나서 운전하게 함으로써 충전 효율 저하를 초래하는 것을 방지하기 위하여, 본 발명은, 효율이 최대가 되도록 컨버터, 바이패스부, 소프트 스위칭 인버터 등을 포함한 전력변환수단을 채용하여, 목표 급전전력량에 따라서 복수의 회로 구조를 가질 수 있고, 또한, 인버터가 소프트 스위칭을 유지할 수 있도록 하는 제어를 통해 시스템 안전과 충전 효율 및 에너지 효율을 향상시킬 수 있는 전기차용 고효율, 고신뢰성 비접촉 급전장치에 대한 발명이다.


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    Title :

    NON-CONTACT POWER FEEDING DEVICE FOR ELECTRIC VEHICLE


    Additional title:

    DISPOSITIF D'ALIMENTATION SANS CONTACT POUR VÉHICULE ÉLECTRIQUE
    전기차용 비접촉 급전장치


    Contributors:
    LIU HYOYOL (author) / CHO JUNG GOO (author) / MOON YONGKY (author) / HAN JUNGHO (author) / KANG TAEWON (author) / CHO NAMJIN (author) / PARK HAECHAN (author)

    Publication date :

    2019-12-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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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