交流传动内燃机车变流器与牵引电机联合冷却系统研究

Combined Cooling System for Converter and Traction Motor on AC Drive Diesel Locomotive

随着交流传动内燃机车布局空间条件的日趋恶化,机车上大型零部件及电机的分体式冷却布局方式和传统冷却塔结构型式已显露出很大的局限性,为此,提出了一种新型通风冷却布局方案,即将风冷部件(牵引电机或主发电机)和水冷部件(变流柜的变流模块)的冷却系统进行有机结合,充分利用各环节冷却温度的需求差异,对发热设备进行有效冷却。这种集成布置充分缩减了机车两大部件的通风冷却装置在机车上的布局空间,优化了机车的整体布置,同时还降低了机车辅助功率,提高了机车效率。

With the layout space condition of AC diesel locomotives getting worse, the split cooling mode for large components & motors and traditional cooling tower structure have shown great limitations. Therefore, a new cooling mode was proposed, which combined the cooling system of air-cooled components(traction motor or main generator) and water-cooled components(converter modules in converter cabinet) organically, making full use of the cooling temperature differences of each cooling link to perform effective cooling for heating equipment. This integrated arrangement fully reduced the layout space of the ventilation and cooling devices of the two major components of locomotives, effectively optimized the overall layout, reduced the auxiliary power of locomotives, and improved the efficiency of locomotives.