文档介绍：纯电动大巴电机驱动器冷却系统的设计和分析
杨世春、刘伟、张良
(北京航空航天大学交通科学与工程学院, 北京 100191)
摘要:由于电动汽车对于电机和电机驱动器具有功率密度高、输出电压变化范围大、过载能力强、运行效率高和冷却性能好等约束,特别是从性能和冷却要求上对电机驱动器提出了更高的要求,因此一个良好的电机驱动器冷却系统的设计是必需的。将电机驱动器看作均质发热体,实验得出驱动器核心处温度与对应区域冷却流道处的温度,结合仿真分析,可以得到驱动器的温度分布云图。通过分析计算表明设计的驱动器冷却系统满足冷却要求。
关键词:电动大巴;电机驱动器;冷却系统
中图分类号: 文献标识码:A 文章编号:
The Cooling System Design and Analysis of the Electric Bus Motor Controller
Yang shi-chun , Liu wei , Zhang liang ,
(Traffic science and engineering college of BUAA, Beijing 100191,China)
Abstract:As the motor and its controller of the electric car has many constraints that high power density, output voltage change range, overload ability, high efficiency and the cooling performance and so on , especially for the performance and cooling requirements on motor controller, it call for higher request, so it is necessary to have a good design of the cooling system. Treating the motor and its controller as equality heating matters, measure the temperature of the core of IGBT and the corresponding area of the cooling flow by the experiment; Combined with the simulation analysis, a map of temperature distribution could be got. It shows that the design of the cooling system meet the request.
Key words: electric bus; motor controller; cooling system
前言:
电机驱动器是交流传动电动汽车的关键零部件之一,与其他应用场合相比较,电动汽车对于电机和电机驱动器具有功率密度高、输出电压变化范围大、过载能力强、运行效率高和冷却性能好等约束,特别是从性能和冷却要求上对电机驱动器提出了更高的要求,电动汽车常