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研究一种低成本、高性能的三能源(燃料电池,动力蓄电池和超级电容)plug-in混合动力系统方案。比较多种能量控制策略,采用适合该系统的逻辑门限控制策略,并基于Matlab/Simulink编写程序,建立仿真车型进行控制策略仿真;分析ECE-EUDC循环工况下该系统的扭矩、功率的分配以及行驶状态的变化,并优化重要门限参数使整车系统达到最优状态。仿真结果表明,燃料电池汽车三能源混合系统能够在满足动力性的前提下,稳定高效运行,降低能耗,改善经济性。
Research a low-cost, high-performance three-energy (fuel cell, power battery and supercapacitor) plug-in hybrid powertrain solution. Compared with a variety of energy control strategies, using the logic threshold control strategy suitable for the system, and based on Matlab / Simulink programming, the simulation model of the control strategy simulation; ECE-EUDC cycle conditions of the system torque, power distribution and Driving conditions change, and optimize the important threshold parameters to achieve the optimal vehicle system. The simulation results show that the three-energy hybrid system of fuel cell vehicles can run stably and efficiently under the precondition of meeting the dynamic performance, reduce the energy consumption and improve the economy.