燃料电池逆变供电系统的建模和控制

摘要

针对燃料电池逆变发电系统,利用状态平均法建立整个供电系统的数学模型,导出输出变量与输入变量之间的传递函数.对所提出的控制措施和方案,在系统中的应用作了详细描述.在分析的基础之上,借助计算机仿真软件对所提出的控制方案进行了闭环条件下的仿真,得出仿真波形图,同时给出了实验波形.通过理论分析、仿真结果以及实验波形之间的比较,三者结论是完全一致的.可见所采用的分析方法、建立的数学模型和控制策略是完全正确的.%As for the fuel cell inverter power generation systems, mathematical model for the entire power system is built using the state average method, and the transfer function between the output variables and input variables is derived. Application of the proposed control measures and programs is described in detail. In the condition of closed-loop the proposed control scheme is emulated using computer simulation software and the simulation waveform is attained. Experimental waveform is also presented. The comparison results among the theoretical analysis, simulation results and experimental waveforms are completely consistent; It can be seen that the analytical method and the mathematical model and control strategy are entirely correct.