机电复合传动最优功率分配策略研究  

A Research on the Optimal Power Distribution Strategy for Electro-mechanical Drive

作　　者：张东好[1] 韩立金[1,2] 项昌乐[1,2] 王伟达[1,2] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]车辆传动重点实验室,北京100081

出　　处：《汽车工程》2014年第11期1392-1398,1404,共8页Automotive Engineering

基　　金：国家自然科学基金(51005017)资助

摘　　要：根据机电复合传动中功率耦合机构和功率分配单元的分汇流特性,列出了机械功率平衡方程和电力功率平衡方程。基于最优功率分配策略,建立了多目标优化模型,并提出了动态规划与动态预测相结合的求解算法。根据综合行驶工况和随机用电工况,得到了发动机和多个电机的最优控制轨线。仿真结果验证了所采用的最优功率分配策略的可行性,为实时功率分配策略的制定和优化提供了依据。The mechanical and electrical power balance equations are formulated according to the split characteristic of power distribution unit and the merging characteristic of the power coupling mechanism in electro-mechanical drive. The multi-objective optimization model is established based on the optimal power distribution strategy, and a solving algorithm combining dynamic programming and dynamic prediction is put forward. The opti-mal control trajectories of engine and motors are obtained on the basis of comprehensive driving cycle and random e-lectricity utility condition. The results of simulation verify the feasibility of the optimal power distribution strategy a-dopted, providing a basis for the formulation and optimization of real-time power distribution strategy.

关 键 词：机电复合传动 功率分配 多目标优化 动态规划 

分 类 号：U463.2[机械工程—车辆工程]