The invention discloses an electrified railway power supply system, and belongs to the technical field of power supply and power control. The system comprises a three-phase power supply module, an AC-AC frequency conversion module, a frequency multiplication module and a single-phase traction load which are connected in sequence. Wherein the three-phase power supply module is used for providing three-phase power frequency alternating current. The AC-AC frequency conversion module is used for converting the three-phase power frequency alternating current into three-phase low-frequency alternating current and outputting the three-phase low-frequency alternating current. The frequency of the three-phase low-frequency alternating current is one third of the frequency of the three-phase power-frequency alternating current. And the frequency doubling module is used for performing frequency conversion processing on the three-phase low-frequency alternating current and outputting single-phase power-frequency alternating current to a single-phase traction load. And the frequency of the single-phase power frequency alternating current is the same as that of the three-phase power frequency alternating current. The problem that a large number of negative-sequence and zero-sequence components are generated in power grid voltage due to the fact that a three-phase power system is not matched with a single-phase traction load is solved.

    本申请公开了一种电气化铁路供电系统,属于供电及电力控制技术领域。本申请系统包括依次连接的三相供电模块、交交变频模块、倍频模块和单相牵引负荷。其中,三相供电模块用于提供三相工频交流电。交交变频模块用于将三相工频交流电转换为三相低频交流电,并输出三相低频交流电。三相低频交流电的频率为三相工频交流电的频率的三分之一。倍频模块用于对三相低频交流电进行变频处理,输出单相工频交流电至单相牵引负荷。单相工频交流电的频率与三相工频交流电的频率相同。解决了三相电力系统与单相牵引负荷不匹配,导致电网电压中产生大量负序和零序分量的问题。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Electrified railway power supply system


    Weitere Titelangaben:

    电气化铁路供电系统


    Beteiligte:
    LIU ZHIHE (Autor:in) / YUAN CHUNMING (Autor:in) / YU LE (Autor:in) / YANG LU (Autor:in)

    Erscheinungsdatum :

    16.07.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



    Electrified railway traction power supply system

    LI QUNZHAN / YI DONG / WANG BAOGUO et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Electrified railway cut-through power supply system

    LI YAN / LIU YOUQIAN / ZHANG SHOUHONG et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Bilateral through power supply system for electrified railway

    JIN SONG / SHENG WANGQUN / HUANG WENXUN et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Electrified railway power supply device and system thereof

    LU YANG / WANG ZHIFENG / ZHOU YI et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Flexible interconnection power supply system of electrified railway

    QIU LEBING / CHEN JIELIAN / ZHOU FANGYUAN et al. | Europäisches Patentamt | 2021

    Freier Zugriff