空间燃料电池电源子系统输出性能的仿真与试验验证

为了系统性地研究质子交换膜燃料电池电源子系统的输出特性与电堆压力、电堆温度之间的关系，首先建立电堆的数学模型，在Matlab/Simulink中进行仿真，研究输入与输出的关系；其次针对航天应用设计相匹配的燃料电池变换器（FCDR），将其与电堆的输出端接在一起进行仿真，研究电堆的输入对FCDR的输出特性的影响，当负载发生变化时，检验FCDR对维持母线电压稳定输出的能力；最后对电堆和电堆系统的仿真进行试验测试，证明仿真的正确性，从而对空间燃料电池电源系统有更深一步的认识，为整个电源系统的设计打下坚实的基础。

Simulation and experimental verification of space fuel cell power supply subsystem output performance

The relationship between the output characteristics of the proton exchange membrane fuel cell power system and the reactor pressure and temperature is systematically studied. Firstly, the mathematical model of the electric reactor is established and the relationship between the input and the output in Matlab/Simulink is studied. Secondly, the fuel cell discharge regulator(FCDR) is designed for aerospace applications. The simulation starts with connecting the FCDR and electric reactor, and the influence of the input on the output of the FCDR as well as FCDR′s ablity to maintain the bus voltage stable when the loads chang is studied. Finally, the experiments test the electric reactor′s and electric reactor subsystem′s simulations′ validity. The experiments prove the correctness of the simulation, providing a further insight into space fuel cell power systems. The power subsystem provides a firm foundation for the design of the whole power system.