双流制As型城轨车辆新技术

New technique of dual-system As-type urban rail vehicle

文章通过对双流制As型城轨车辆牵引系统的切换方式、双流制转换系统主要电气设备、车辆高压电路及辅助电路进行分析,论证双制式理论的可行性;并对现有城轨车辆高压设备冷却方案、辅助电源系统、高压直供式变频空调技术进一步优化改进,对城轨车辆设计具有指导意义,可为城轨车辆选型提供借鉴和参考。

This paper analyzes the traction switching of dual-system As-type urban rail vehicle,the main electrical equipments,high voltage circuit and auxiliary circuit of dual-system conversion system on board,and demonstrates the feasibility of dual-system theory.In addition,the existing high-voltage devices cooling scheme,auxiliary power supply system and high-voltage direct supply variable-frequency air conditioning technology of urban rail vehicles are further optimized and improved.It has significant value in guiding the design of urban rail vehicles,and can serve as reference for the selection of urban rail vehicles.