电动汽车空调驱动系统的仿真研究

Simulation Research on the Air-conditioning Drive System of Electric Vehicles

基于电动汽车续航能力较弱的特点,对其空调驱动系统提出了体积小、重量轻及效率高的特殊要求,而永磁同步电机(PMSM)结合模型参考自适应系统(MRAS)可满足这一要求。在理论层面上推导了基于模型参考自适应算法的永磁同步电机的转速辨识后,在MATLAB/Simulink环境下进行系统搭建并仿真运行。仿真试验中,在转速输入分别为1000 r/min与3500 r/min情况下,系统均具有良好的动态性能与静态性能,符合电动汽车空调驱动系统的要求,验证了基于MRAS的永磁同步电机作为电动汽车空调驱动系统的可行性。

Based on the characteristics of low endurance of electric vehicles,special requirements of small size,light weight and high efficiency are put forward for its air conditioning drive system.The permanent magnet synchronous motor(PMSM)combined with the model reference adaptive system(MRAS)can meet this requirement.After deducing the speed identification of the permanent magnet synchronous motor based on the model reference adaptive algorithm at the theoretical level,the system is built and simulated in the MATLAB/Simulink environment.In the simulation test,when the speed input is 1000 r/min and 3500 r/min,the system had good dynamic performance and static performance,which met the requirements of electric vehicle air conditioning drive system.The feasibility of MRAS-based permanent magnet synchronous motor as an electric vehicle air-conditioning drive system was verified.