The invention relates to a multi-storage-battery-pack safe grid connection circuit which is characterized in that the multi-storage-battery-pack safe grid connection circuit comprises relays, thermistors and a sampling unit, the number of the relays is two, the relays comprise a relay J1 and a relay J2, the relay J1 is used for starting the grid connection process of a plurality of storage battery packs, and the thermistor is used for sampling the storage battery packs. When the main power storage battery pack is disconnected, a current loop does not exist between the initiating explosive device storage battery pack and the main power storage battery pack; the relay J2 is used for short-circuiting the thermistor RT after voltage equalization of the multiple storage battery packs; the thermistor RT is used for loop current limiting between the storage battery packs and voltage balancing between the storage battery packs; and the sampling unit is used for sampling loop current between the storage battery packs. The circuit provided by the invention is used for realizing safe grid connection of the initiating explosive device storage battery pack and the main power storage battery pack on the satellite, so that the capacity of the storage battery pack for supplying power to the whole satellite bus under the normal working condition of the satellite is increased, and the waste of storage battery resources and the adhesion condition of relay contacts during grid connection of the storage battery pack are avoided.

    本发明涉及一种多蓄电池组安全并网电路,其特征在于,其包括继电器、热敏电阻、采样单元,其中:所述继电器有两个,包括继电器J1和继电器J2,所述继电器J1用于启动多组蓄电池组并网进程,且在断开时能够保证火工品蓄电池组与主功率蓄电池组间不存在电流回路;所述继电器J2用于多蓄电池组电压均衡后短路热敏电阻RT;所述热敏电阻RT用于蓄电池组间回路限流以及蓄电池组间电压均衡;所述采样单元用于蓄电池组间回路电流采样。本发明提供的电路用于实现卫星上火工品蓄电池组与主功率蓄电池组的安全并网,增大了卫星正常工况下为整星母线供电的蓄电池组的容量,避免蓄电池资源的浪费和蓄电池组并网时继电器触点粘连状况的发生。


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    Title :

    Safety grid-connected circuit for multiple storage battery packs


    Additional title:

    一种多蓄电池组安全并网电路


    Contributors:
    TAN SIMING (author) / JIANG WEI (author) / WANG CHIA-CHING (author) / ZHANG YIXUAN (author) / WANG SONG (author) / HAN YEHUA (author)

    Publication date :

    2024-11-29


    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 / B64G Raumfahrt , COSMONAUTICS / F42B EXPLOSIVE CHARGES, e.g. FOR BLASTING , Explosive Ladungen, z.B. für Sprengungen




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