The invention discloses a power supply control system and a power supply control method of a locomotive. In a locomotive running process, electric energy is obtained from an overhead line system through two current collectors. Based on the current value of the current flowing through the two current collectors and the voltage value of the input side of an intermediate circuit, whether the front end of the locomotive enters a power-free area or not is determined; when it is determined that the front end of the locomotive enters the power-free area, a current collector at the rear end of the locomotive has not enter the power-free area yet and the locomotive can still obtain electric energy from the overhead line system, and at the moment, the converter is controlled to unload, so that the possibility of pantograph-catenary arcing when a rear-end current collector of the locomotive enters the power-free area can be reduced, even the pantograph-catenary arcing phenomenon is avoided, and adverse effects on locomotive equipment and power grid equipment are reduced.
本申请公开了一种机车的供电控制系统及供电控制方法,机车运行过程中,通过两个受流器从接触网获得电能,并且根据流经两个受流器的电流值以及中间电路的输入侧的电压值,确定机车的前端是否进入无电区,当确定机车的前端进入无电区时,机车的后端受流器尚未进入无电区,机车仍能够从接触网获得电能,此时控制变流器进行卸载,能够减小机车的后端受流器进入无电区时发生弓网拉弧现象的可能性,甚至是避免发生弓网拉弧现象,从而减小对机车设备和电网设备产生的不利影响。
Power supply control system and method of locomotive
一种机车的供电控制系统及供电控制方法
17.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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