多段式机电复合传动系统非稳态过程机电耦合动力学研究

项目名称： 多段式机电复合传动系统非稳态过程机电耦合动力学研究

项目编号： No.51305026

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 韩立金

作者单位： 北京理工大学

项目金额： 25万元

中文摘要： 多段式机电复合传动属于功率分流式混联混合动力系统，具有较宽的传动范围和无级变速特性，能够使车辆的动力性和燃料油经济性得到较大提升。但是由于系统结构复杂，发动机与多个电机共同作用于多级行星传动系统，必须深入了解其耦合机理，才能使系统各部件协调工作，避免一些奇异或不稳定工况的出现。本项目研究多段式机电复合传动系统非稳态过程的机电耦合动力学问题，通过耦合工作界面分析与局部耦合系统建模，揭示车用永磁同步电机在复杂集成环境下的机电耦合机理，发动机与电机多动力驱动行星传动系统耦合振动特性，以及多个电机与储能装置间瞬态工作特性。利用多领域统一建模的方法，建立机电复合传动系统网络式全局耦合动力学模型，揭示其在模式转换或换段等非稳态工况下的多重耦合机理。为机电复合传动系统的优化设计和动态精确调控奠定理论基础。研究成果可应用于公交车辆、工程机械车辆、越野车辆以及军用车辆等大功率车辆的混合动力系统设计。

中文关键词： 机电复合传动；耦合动力学；非稳态过程；耦合机理；

英文摘要： Multi-range electromechanical transmission belongs to the power split hybrid electric drive system, which has a wide transmission range and continuously variable characteristics. The vehicle's power performance and fuel economy may be promoted. Because of the complexity of system structure and multiple strong coupling relationship, we must better understand the coupling mechanism to make the coordination of various components of the system, to avoid the emergence of some singular or unstable conditions. By analysing the coupling interface and local coupled system modeling, electromechanical coupling mechanism of the permanent magnet synchronous motor in the complex integrated environment, the coupled vibration characteristics of the engine and the motor multi-power-driven planetary drive system, as well as the transient characteristics between two motors and the energy storage device will be revealed. The compound transmission network global coupled model will be established by using multi-field unified modeling method. The multiple coupling mechanism in the mode conversion or exchange section of unsteady state conditions will be revealed. The theoretical basis for the optimal design of composite electromechanical drive system and dynamic precision control. The research results can be applied to the design of th

英文关键词： electromechanical transmission；coupling dynamics；unsteady states；coupling mechanism；