The invention discloses an urban rail transit AC-DC hybrid power supply system, which comprises a centralized power supply system and a distributed power supply system, and is characterized in that the centralized power supply system comprises at least two independent main substations, the main substations are connected with two paths of external power supplies, one path is output to an I-section DC bus through a current conversion device, and the other path is output to an II-section DC bus through a decentralized power supply device; the other path is output to a section II alternating current bus through a main transformer and supplies power to a plurality of substations through a medium-voltage network; the distributed power supply system is provided with at least two switching stations arranged in substations, power is supplied to the adjacent substations through a medium-voltage network, two paths of external power supplies are connected to the switching stations, one path of external power supplies is output to an I-section direct-current bus of the corresponding substation through a current conversion device, and the other path of external power supplies is connected to an II-section alternating-current bus of the corresponding substation; the two systems both adopt a double-loop network medium-voltage network; the substation is provided with an energy router and a converter device, the input end of the energy router is connected with a substation I-section direct-current medium-voltage bus, and the input end of the converter device is connected with a substation II-section alternating-current medium-voltage bus.

    本发明公开了一种城市轨道交通交直流混合供电系统,包括集中式供电系统和分散式供电系统,集中式供电系统包括至少两个独立的主变电所,主变电所接入两路外电源,一路经换流装置输出至I段直流母线,另一路经主变压器输出至Ⅱ段交流母线,通过中压网络向多个变电所供电;分散式供电系统设有至少两个设置于变电所中的开闭所,通过中压网络向临近的多个变电所供电,开闭所接入两路外电源,一路经换流装置输出至所在变电所的I段直流母线,另一路连接至所在变电所的Ⅱ段交流母线;两种系统均采用双环网中压网络;变电所设有能量路由器和变流装置,能量路由器输入端分别连接变电所I段直流中压母线,变流装置输入端连接所述变电所Ⅱ段交流中压母线。


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    Title :

    Urban rail transit AC-DC hybrid power supply system


    Additional title:

    一种城市轨道交通交直流混合供电系统


    Contributors:
    CHEN HUAIXIN (author) / WANG SHIFENG (author) / ZHANG HAORAN (author) / LIANG SHIWEN (author) / LI LIPENG (author) / LIU GUANGHUAN (author) / LI HANQING (author) / JIN PEIYUE (author) / SUN CAIQIN (author) / TIAN SONG (author)

    Publication date :

    2024-11-15


    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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES



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