The invention relates to the field of railway vehicle power supply, provides a railway vehicle fusion power supply system, and aims to solve the problems of tedious intermediate links, low conversion efficiency, large size, complex wiring and the like of a vehicle power supply system. The power supply system comprises a high-voltage direct-current power supply, a maintenance station power supply, a low-voltage direct-current bus, a low-voltage alternating-current bus and a plurality of power distribution nodes, wherein the high-voltage direct-current power supply takes electricity from a vehicle pantograph and provides high-voltage power for each power distribution node; the maintenance station power supply is arranged in a garage and is connected to each power distribution node after a high-voltage direct-current power supply is disconnected during maintenance; the low-voltage direct-current bus is connected with each power distribution node and the standby battery; the low-voltage alternating-current bus is connected with each power distribution node and a low-voltage alternating-current power supply during ground overhaul emergency; the power distribution nodes are arranged in all the carriages and provide power for the air conditioning units and the auxiliary devices of the carriages where the power distribution nodes are located. According to the system, two-stage power conversion is reduced, and energy consumption is reduced; the distributed power supply cancels an AC power supply bus, reduces system harmonic waves, and reduces interference.
本发明涉及轨道车辆供电领域,提出一种轨道车辆融合供电系统,旨在解决车辆供电系统中间环节冗繁,转换效率低,体积庞大,布线复杂等问题。该供电系统包括:高压直流电源、检修站电源、低压直流母线、低压交流母线和多个配电节点,高压直流电源从车辆受电弓取电向各配电节点提供高压电源;检修站电源设置于车库,在检修断开高压直流电源后,接入到各配电节点;低压直流母线与各配电节点和备用电池连接;所述低压交流母线与各配电节点和地面检修应急时的低压交流电源连接;配电节点布置在各个车厢,为所在的车厢的空调机组和辅助设备提供动力。本系统减少两级电源转换,降低能耗;分布式供电取消了交流供电母线,降低系统谐波,减少干扰。
Railway vehicle fusion power supply system
轨道车辆融合供电系统
2023-12-01
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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