摘要
聚焦小功率燃料电池复合电源系统的性能,设计出一款自行车用电源动力系统。内容包括整车结构和动力性需求的制定,对复合电源的功率及能量水平进行选型,实现功率平衡;借助MATLAB/Simulink实现对硬件的模拟仿真。电源部分通过不断调参,达到仿真输出与硬件测试结果一致,开关电源则采取状态空间平均法,采取双闭环控制电能分配,保证其与实物的功能一致。随后针对优化复合电源的功率分配进行了探讨和设计,并应用了四种控制策略,以SOC状态改变量,等效氢气消耗量,系统效率,燃料电池输出变化频率,策略复杂度等参数为评价因素。在硬件上,上汽大众仅能提供峰值100W的燃料电池用于实验,该功率无法满足自行车动力系统需求。因此对于其他零部件也进行了比例选择并按相同拓扑结构进行实物连接,通过实验实现了预期功能,为该动力系统进行了可行性验证。
Focusing on the performance of the low-power fuel cell composite power system,a power supply system for bicycles is designed.The formulation of the vehicle structure and dynamic requirements,the selection of the components for power supply system to realize power balance are researched;The hardware simulation is realized by MATLAB/Simulink.For the power source part,the simulation output is consistent with the hardware test results by continuously adjusting the parameters.For the power electronic,the state space average method is adopted to control the power distribution by double closed loop to ensure the function of the power supply is consistent with the real object.The power distribution and applies four control strategiesis discussed and designed.The SOC state change,equivalent hydrogen consumption,system efficiency,fuel cell output change frequency,strategy complexity were taken as evaluation factors.SAIC Volkswagen can only provide a 100 W fuel cell for experiments,which cannot meet the demand of bicycle power system.Therefore,the proportion selection for other parts and the physical connection according to the same topology structure was carried on as well.The expected function is realized through experiments,and the feasibility of the power system is verified.
作者
于秋扬
庾昂
Yu Qiuyang;Yu Ang(SAIC Volkswagen Co.,Ltd,Shanghai 201805)
出处
《传动技术》
2022年第2期7-13,共7页
Drive System Technique
关键词
燃料电池
蓄电池
复合电源
自行车
软硬件
能量管理策略
fuel cell
battery
hybrid power system
bicycle
hardware and software
energy management strategy
作者简介
于秋扬,男,硕士研究生,主要研究方向:新能源汽车电机控制器研发。E-mail:yuqiuyang1227@163.com
