The invention discloses a multifunctional bidirectional isolation type vehicle-mounted charger and a control method thereof. The multifunctional bidirectional isolation type vehicle-mounted charger comprises a front-stage Sepic-Zeta bridgeless PFC (Power Factor Correction) and a rear-stage bidirectional CLLLC converter, the front stage Sepic-Zeta bridgeless PFC comprises a bidirectional full-bridge AC/DC converter and a bidirectional Sepic-Zeta DC/DC converter, wherein the bidirectional full-bridge AC/DC converter and the bidirectional Sepic-Zeta DC/DC converter are connected. The bidirectional full-bridge AC/DC converter is connected with a 220V single-phase power grid; the backward stage bidirectional CLLLC converter is connected with the bidirectional Sepic-Zeta DC/DC converter; the forward resonance link and the reverse resonance link of the rear-stage bidirectional CLLLC converter are the same so that soft switching can be achieved conveniently, the rear-stage bidirectional CLLLC converter is finally connected with a power battery of the electric vehicle, and the front-stage Sepic-Zeta bridgeless PFC is combined to charge the power battery. The vehicle-mounted charger has multiple functions of G2V, V2G, V2V, V2L and the like at the same time, the output voltage range is adjustable in the range of 250V-750V, and the applicability and the safety are improved.

    本发明公开了多功能双向隔离型的车载充电机及其控制方法,包括前级Sepic‑Zeta无桥PFC和后级双向CLLLC变换器;前级Sepic‑Zeta无桥PFC包括相连接的双向全桥AC/DC变换器和双向Sepic‑Zeta DC/DC变换器;双向全桥AC/DC变换器与220V单相电网相连接;后级双向CLLLC变换器与双向Sepic‑Zeta DC/DC变换器相连接;后级双向CLLLC变换器的正反向谐振环节相同,以便于软开关的实现,后级双向CLLLC变换器最终与电动汽车动力电池相连接,联合前级Sepic‑Zeta无桥PFC为动力电池充电。本发明使车载充电机同时具备G2V、V2G、V2V、V2L等多种功能,而且输出电压范围在250V‑750V范围内可调,提高了适用性和安全性。


    Access

    Download


    Export, share and cite



    Title :

    Multifunctional bidirectional isolation type vehicle-mounted charger and control method thereof


    Additional title:

    多功能双向隔离型的车载充电机及其控制方法


    Contributors:
    WANG JIANYUAN (author) / YAN JIN (author) / WANG HAOYU (author)

    Publication date :

    2023-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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



    Bidirectional multifunctional vehicle-mounted charger technology

    YANG WEI / OTHER INVENTORS HAVE WAIVED THE RIGHT TO BE MENTIONED | European Patent Office | 2021

    Free access

    Vehicle-mounted bidirectional charger test system and control method thereof

    ZHANG XIAOMIN | European Patent Office | 2022

    Free access

    Split-phase bidirectional vehicle-mounted charger

    CHESIER DAVID S / MILLER STEVEN G | European Patent Office | 2023

    Free access

    Bidirectional vehicle-mounted charger, vehicle-mounted power system and electric vehicle

    LIANG ZHIGANG / MENG YUANDONG / NI HUI | European Patent Office | 2022

    Free access

    Bidirectional vehicle-mounted charger, discharging method and electric vehicle

    ZHANG HUI / WU RENHUA / SONG ANGUO | European Patent Office | 2021

    Free access