The invention discloses an urban rail transit full-flexible direct current 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, and supplies power to a plurality of substations through a medium-voltage network; two paths of external power supplies connected to the main substation are respectively output to the I-section medium-voltage bus and the II-section medium-voltage bus through the current conversion device; the I-section medium-voltage bus and the II-section medium-voltage bus are both connected with a medium-voltage bus of a substation; the distributed power supply system is provided with at least two switching stations arranged in substations and supplies power to the adjacent substations through a medium-voltage network, and two paths of external power supplies connected to the switching stations are output to medium-voltage buses of the substations through current conversion devices. The medium-voltage networks of the two power supply systems both adopt a double-ring network wiring scheme or a ring network wiring scheme; the substation is provided with two energy routers which are standby for each other, and the input ends of the energy routers are respectively connected with the I-section medium-voltage bus or/and the II-section medium-voltage bus.

    本发明公开了本发明提供了一种城市轨道交通全柔性直流供电系统,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,通过中压网络向多个变电所供电,主变电所接入两路外电源经换流装置分别输出至I段中压母线、Ⅱ段中压母线;I段中压母线、Ⅱ段中压母线均与变电所的中压母线相连;分散式供电系统设有至少两个设置于变电所中的开闭所,并通过中压网络向临近的变电所供电,开闭所接入两路外电源均经换流装置输出至变电所的中压母线;两种供电系统的中压网络均采用双环网接线方案或环网接线方案;变电所设有两个互为备用的能量路由器,所述能量路由器输入端分别连接I段中压母线或/和Ⅱ段中压母线。


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    Title :

    Urban rail transit full-flexible direct current power supply system


    Additional title:

    一种城市轨道交通全柔性直流供电系统


    Contributors:
    LIANG SHIWEN (author) / LIU GUANGHUAN (author) / LYU GUANGYU (author) / LI LIPENG (author) / LI CHAO (author) / TIAN SONG (author) / YU XIAOJIE (author) / CHEN HUAIXIN (author) / LEE HEE-KWANG (author) / SUN CAIQIN (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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