以50 kW固体氧化物燃料电池发电系统工艺为计算基础，通过Aspen Plus软件搭建了SOFC工艺流程计算模型，设定了模型假设和初始输入条件，讨论了原料气组成、温度、压力、循环气比例等操作条件影响情况，分析了电堆温度控制手段的思路和效果。结果表明，水汽比例、阳极循环气比例、阴极空气量3种温度控制手段均能实现温度的调控，同时3种控制手段在操作条件和联锁方面分别具有不同调控范围和适用条件。水汽比例调节适用于发电系统全局性的调节，一旦确定尽量不要轻易调整，是系统维持稳定运行的保障；阳极循环气比例在调节燃料利用转化效率方面具有重要意义；阴极空气是目前最常用的调节电堆温度的首选手段。

A SOFC process calculation model is established through Aspen Plus software by taking a 50 kW solid oxide fuel cell power generation system process as the calculation basis.The model hypothesis and initial input conditions are specified, and the influences of raw gas composition, temperature, pressure, circulating gas proportion and other operating conditions are explored.The idea and effect of reactor temperature control are analyzed.The results show that water vapor ratio, anode circulating gas ratio and cathode air volume each can control the temperature, and these three control methods have different control ranges and applicable conditions in operation conditions and linkage.Water vapor ratio adjustment method is suitable for the overall adjustment of the power generation system.Once it is determined, it should not be easily adjusted to ensure the stable operation of the system.The adjustment of anode circulating gas ratio plays an important role in regulating fuel conversion efficiency.At present, cathode air volume adjustment method is the preferred method to adjust reactor temperature.