The invention discloses a main and auxiliary transmission system of an electric locomotive and the electric locomotive. The main and auxiliary transmission system comprises a main transformer, and the main transformer comprises a primary winding and at least one traction winding; the traction system loop comprises a four-quadrant rectifier, a traction inverter, a traction motor and an alternating current isolation contactor; the power battery system loop comprises a power battery and a power battery charger; and the auxiliary system loop comprises a DC/DC converter, a power frequency auxiliary inverter, a power frequency auxiliary filter and an auxiliary system. According to the main-auxiliary transmission system of the electric locomotive, reliable operation of the system under the fault condition is ensured through the design of the bipolar isolation contactors, emergency traction and split-phase zone speed-down control are achieved through the power battery system, efficient and reliable electric energy conversion is achieved by adopting a DC-DC-AC conversion mode, and the reliability of the system is improved. And the three-phase independent control contactor ensures the working safety of the motor.
本发明公开了一种电力机车主辅传动系统及电力机车,包括主变压器,所述主变压器包括原边绕组和至少一个牵引绕组;至少一个牵引系统回路,所述牵引系统回路包括四象限整流器、牵引逆变器、牵引电动机和交流隔离接触器;动力电池系统回路,所述动力电池系统回路包括动力电池和动力电池充电机;以及辅助系统回路,所述辅助系统回路包括DC/DC变流器、工频辅助逆变器、工频辅助滤波器和辅助系统。本发明提供的电力机车主辅传动系统通过双极隔离接触器的设计确保了系统在故障情况下的可靠运行,通过动力电池系统实现应急牵引和分相区掉速控制,采用DC‑DC‑AC变流模式实现高效、可靠的电能转换,三相独立控制接触器确保了电机工作的安全性。
Main auxiliary transmission system of electric locomotive and electric locomotive
一种电力机车主辅传动系统及电力机车
2023-12-29
Patent
Electronic Resource
Chinese