The invention discloses a multi-locomotive and a traction power supply circuit and a control method thereof. A traction transformer is connected with a primary side contact net, and a plurality of secondary side windings are connected with a plurality of four-quadrant converters and a first rectifier module respectively; the input end of the intermediate direct-current loop is connected with the output ends of the four-quadrant converters, and the output end of the intermediate direct-current loop is connected with the traction inverters and the auxiliary inverters; the input end of the fourth inverter is connected with the first rectifier module, the output end of the fourth inverter is connected with a first contactor contact, a sixth contactor contact and a seventh contactor contact through an isolation transformer, one end of the seventh contactor contact is connected between the auxiliary inverter and the auxiliary load, the first contactor contact is connected with the third rectifier module, and the third rectifier module passes through a second contactor contact; the output end of the second rectifier module is connected with a fourth contactor contact, one end of the fourth contactor contact is connected between the first rectifier module and the fourth inverter, and the input end of the second rectifier module is connected with the diesel engine. The train operation efficiency is improved.
本发明公开了一种重联机车及其牵引供电电路、控制方法,牵引变压器,原边接接触网,多个副边绕组分别接多个四象限变流器、第一整流模块;中间直流回路,输入端与多个四象限变流器的输出端连接,输出端接多个牵引逆变器、辅助逆变器;第四逆变器,输入端接第一整流模块,输出端通过隔离变压器接第一接触器触点、第六接触器触点和第七触器触点,第七接触器触点一端接入辅助逆变器和辅助负载之间,第一接触器触点接第三整流模块,第三整流模块通过第二接触器触点;第二整流模块输出端接第四接触器触点,第四接触器触点一端接入第一整流模块和第四逆变器之间,第二整流模块输入端接柴油机。本发明提高了列车运行效率。
Multi-heading locomotive and traction power supply circuit and control method thereof
重联机车及其牵引供电电路、控制方法
2023-08-22
Patent
Elektronische Ressource
Chinesisch
IPC: | B61C Lokomotiven , LOCOMOTIVES / 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 |
Europäisches Patentamt | 2023
|Europäisches Patentamt | 2023
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