储能式低地板车辆牵引变流器设计

Design of Traction Converter for Energy Storage Low-floor Vehicle

储能式低地板车辆因无需全程架设接触网而带来了极大的方便性及灵活性,是当前该领域研究热点之一。为满足储能式低地板车辆的双供电制式自动切换及储能元件快速充电的要求,文章设计了一种高集成的双供电制式牵引变流器,介绍了其主电路设计、结构布局、主要技术参数计算等,重点介绍了变流器模块、双向DC/DC电抗器、车顶安装门结构及变流器散热等关键技术设计。试验结果验证了牵引变流器能满足两种供电制式下的相关性能。

Energy storage low-floor vehicle is a convenient and flexible choice due to the sectional catenaries-free characteristics, and currently it is one of the research hotspots in this field. In order to meet automatic switch of dual-power-supply and fast energy storage element charging in energy storage low-floor vehicle, it designed a high integrated traction converter which can be supplied by both power grid and energy storage element, presented its main circuit, mechanical layout of components and calculation methods of main technical parameters, especially introduced its key technologies such as converter module, chopper reactor of DC/DC circuit, door structure and cooling method of roof installed converter. Test results verified the characteristics of the traction converter.