【摘要】 纯电动汽车动力电池存在功率密度低,使用寿命短的问题,在电源系统中加入高比功率的超级电容组成了复合电源系统,为了使两者更加高效的实现能量转换,提高复合电源系统的性能,在复合电源系统的等效电路模型基础上,结合系统不同的工作模式以及纯电动汽车不同的行驶工况,提出一种动态矩阵的模型预测控制算法,并在实车复合电源试验环境中对模型预测控制算法进行验证,实验结果表明:采用的模型预测控制能很好的实现复合电源系统能量的最优管理。更多还原

【Abstract】 The electric vehicle has the problem that the power battery has a characteristic for low power density and short service life. The hybrid energy storage system is composed of high specific power supercapacitor in the power supply system. In order to realize more efficient energy conversion and improve the performance of hybrid energy storage system,on the basis of the DC/DC converter Boost and Buck equivalent circuit model forhybrid energy storage system,the system is combined with the different working modes of the system. A dynamic matrix model predictive control algorithm is proposed for the different driving conditions of the electric vehicle,and the control algorithm was verified in the vehicle test environment. The experimental results show thatmodel predictive control could realize the energy management of hybrid energy storage system.更多还原