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针对氢气在扩散过程中的分数阶特性,建立PEMFC系统的温度和输出电压分数阶模型.基于此模型,将分数阶PI~λD~μ控制与模糊控制相结合,提出一种模糊分数阶PI~λD~μ控制器,控制氢气流量实现负载扰动下电堆的输出电压最佳.仿真结果表明,模糊分数阶PI~λD~μ控制系统在提高控制系统的实时性和抗干扰性的同时,能够改善系统的稳态性.
Aiming at the fractional order characteristics of hydrogen in the process of diffusion, a fractional temperature and output voltage model of PEMFC system is established.Based on this model, the fractional PI ~ λD ~ μ control and fuzzy control are combined to provide a fuzzy fractional order PI ~ λD ~ μ controller to control the flow of hydrogen to achieve the best output voltage under load disturbance.The simulation results show that the fuzzy fractional PI ~ λD ~ μ control system can improve the real-time and anti-interference of the control system, Improve the system’s steady state.