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Research on the Traction Power Supply System of Low Voltage DC Sliding Contact Line for Electric Mining Truck

机译：电气采矿卡车低压直流滑动线路牵引电源系统研究

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摘要

In order to solve the high cost of pure electric mining truck batteries, long charging time, and serious battery overload when the fully loaded truck was uphill, the method of electric mining truck traction power supply under low voltage DC sliding contact network was proposed. The load capacity of the electric mining truck was analyzed. the performance of line current, line voltage drop, and line loss of different power supply system such as single-ended power supply, two-end power supply, middle single-point power supply and middle two-point power supply were compared. The results showed that under the same working conditions, the middle two-point power supply system had the advantage of small current, low line loss and high performance. The middle two-point power supply system was designed. The performance of line voltage, current, line loss, etc. under various working conditions were analyzed. The countermeasures for overload conditions were proposed. The research provided important guidance for the application and promotion of electric mining truck.
机译：为了解决纯电动矿车电池的高成本，长充电时间和严重的电池过载，当完全装载的卡车上坡时，提出了低压直流滑动接触网络下的电气采矿卡车牵引电源。分析了电气采矿卡车的负载能力。比较了线电流，线路电压降，不同电源系统的线路损耗，如单端电源，双端电源，中间单点电源和中间两点电源的不同电源系统的损耗。结果表明，在相同的工作条件下，中间两点电源系统具有小电流，低线路损耗和高性能的优点。设计了中间两点电源系统。分析了线电压，电流，线路损耗等在各种工作条件下的性能进行了分析。提出了过载条件的对策。该研究为电气采矿卡车的应用和促进提供了重要指导。

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