The invention relates to a railway vehicle zero-voltage starting device, a control method and a railway vehicle, and the device comprises: a power receiving unit which is used for receiving the first DC voltage input of a pantograph and supplying power to a chopping unit; a chopping unit which is used for carrying out step-down chopping on the first direct-current voltage input to obtain second direct-current voltage output, wherein the second direct-current voltage is smaller than the first direct-current voltage; an inversion control unit which is used for controlling the main and auxiliary inverters under the power supply of the second direct-current voltage of the chopping unit; and a main auxiliary inverter which is used for converting the first direct-current voltage input by the pantograph into a first alternating-current voltage under the control of the inversion control unit and outputting the first alternating-current voltage through a medium-voltage bus. A charger does not need to be configured, extra time does not need to be consumed for charging the storage battery, and the running speed of the railway vehicle is increased.
本发明涉及一种轨道车辆零压启动装置、控制方法及轨道车辆,该装置包括:受电单元,用于接收受电弓的第一直流电压输入,并向斩波单元供电;斩波单元,用于将所述第一直流电压输入降压斩波为第二直流电压输出,所述第二直流电压小于所述第一直流电压;逆变控制单元,用于在所述斩波单元的第二直流电压供电下,对主辅助逆变器进行控制;主辅助逆变器,用于在所述逆变控制单元的控制下,将所述受电弓输入的所述第一直流电压转换为第一交流电压,通过中压母线输出。本发明无需配置充电机,无需额外耗费时间对蓄电池充电,加快了轨道车辆投入运行的速度。
Railway vehicle zero-voltage starting device, control method and railway vehicle
一种轨道车辆零压启动装置、控制方法及轨道车辆
2021-07-30
Patent
Electronic Resource
Chinese
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 / 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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