The invention discloses a hydrogen fuel cell hybrid power system based on an isolation DC/DC. The hydrogen fuel cell hybrid power system is characterized by comprising a fuel cell system, a power cell I, an intermediate DC link I, a charging socket, the isolation DC/DC, a power cell II, an intermediate DC link II and an electric transmission system. According to the system, energy conversion and electrical isolation of a fuel cell system and a locomotive electric transmission system are realized by adopting an isolated DC/DC (Direct Current/Direct Current). The problem that rated impulse voltage generated by a main transmission system influences a fuel cell system is solved, and the fuel cell system can meet the voltage requirement of a dielectric strength test of a locomotive electric transmission system. The power battery and the fuel battery system are output in parallel, when the fuel battery system changes the load, the fuel battery can directly obtain energy from the power battery through the non-isolated DC/DC, the power battery is not limited by the isolated DC/DC loading current under the starting and load rising and falling working conditions, and the load increasing and decreasing speed of the fuel battery system is increased.

    本发明公开了一种基于隔离DC/DC的氢燃料电池混合动力系统,其特征在于包括:燃料电池系统、动力电池I、中间直流环节I、充电插座、隔离DC/DC、动力电池II、中间直流环节II和电传动系统。该系统采用隔离式DC/DC实现燃料电池系统与机车电传动系统的能量变换和电气隔离。解决了主传动系统产生的额定冲击电压对燃料电池系统造成影响,使燃料电池系统可以满足机车电传动系统介电强度试验的电压要求。动力电池与燃料电池系统并联输出,在燃料电池系统变载时,燃料电池可以通过非隔离DC/DC直接从动力电池获取能量,在启动、升降载工况不受隔离DC/DC加载电流限制,提高了燃料电池系统的加减载速率。


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    Title :

    Hydrogen fuel cell hybrid power system based on isolated DC/DC


    Additional title:

    一种基于隔离DC/DC的氢燃料电池混合动力系统


    Contributors:
    FU XIN (author) / WANG JINGQI (author) / WEN JIBIN (author) / WEI HONG (author) / ZHANG YONG (author) / LI ZHIFENG (author) / MIAO YANZE (author)

    Publication date :

    2025-01-10


    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 / B61C Lokomotiven , LOCOMOTIVES / 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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