The invention provides a train traction system. At least one of a plurality of carriages of a train is a first carriage provided with a traction power supply main circuit; the traction power supply main circuit comprises a pantograph, a high-voltage box, a power supply converter unit and a first medium-voltage direct-current bus, and the pantograph transmits power received from a contact network to the high-voltage box; if the supplied power is direct current, the direct current is transmitted to a first medium-voltage direct current bus through a second output end; if the supplied power is alternating current, the alternating current is transmitted to the power supply current transformation unit through the first output end; the power supply current transformation unit carries out voltage transformation processing and AC-to-DC processing on the alternating current and then transmits the alternating current to the first medium-voltage DC bus. The train traction system provided by the invention can meet compatible use of different alternating-current and direct-current power supply systems of urban railways.
本申请提供一种列车牵引系统,列车的多个车厢中至少一节为配置有牵引供电主电路的第一车厢;牵引供电主电路包括:受电弓、高压箱、供电变流单元与第一中压直流母线,其中,受电弓将从接触网接收的供电传输至高压箱;若供电为直流电,则通过第二输出端将直流电传输至第一中压直流母线;若供电为交流电,则通过第一输出端将交流电传输至供电变流单元;供电变流单元将交流电进行电压变换处理和交流转直流处理后传输至第一中压直流母线。本申请提供的列车牵引系统,可满足市域铁路交直流不同供电制式的兼容使用。
Train traction system
列车牵引系统
2024-02-13
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |