The invention discloses a flexible power supply system and a power supply method for an electrified railway. The power supply system comprises a plurality of power supply units, and electronic switch devices are arranged among the power supply units; each power supply unit comprises one or more traction substations, and each traction substation comprises a single-phase traction transformer and a three-phase/single-phase power conversion device which are arranged in parallel; the three-phase/single-phase power conversion devices in the same power supply unit are in communication connection; one end of the single-phase traction transformer is connected with a traction substation high-voltage inlet wire power supply, and the other end is connected with a contact network; the three-phase side of the three-phase/single-phase power conversion device is connected with a high-voltage incoming line power supply, and the traction side is connected with a contact network. Through cooperation of different power supply units, different traction substations in the power supply units and different power supply devices in the traction substations, targeted high-reliability flexible power supply system operation modes can be constructed for different operation faults, and the system has the advantages of high reliability, low cost and the like.
本发明公开了一种电气化铁路柔性供电系统及供电方法,供电系统包括多个供电单元,多个供电单元之间配置有电子开关装置;各供电单元包括一个或多个牵引变电所,各牵引变电所均包括并联布置的单相牵引变压器和三相/单相功率变换装置;同一供电单元内的三相/单相功率变换装置之间通讯连接;单相牵引变压器的一端与牵引变电所高压进线电源相连,另一端与接触网相连;三相/单相功率变换装置的三相侧与高压进线电源相连,牵引侧与接触网相连。通过不同供电单元、供电单元内部不同牵引变电所及牵引变电所内部不同供电装置的协同配合,可针对不同的运行故障构建有针对性的高可靠灵活供电系统运行方式,具有可靠性高、成本低等优点。
Flexible power supply system and power supply method for electrified railway
一种电气化铁路柔性供电系统及供电方法
2024-06-25
Patent
Electronic Resource
Chinese
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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