针对微型燃气轮机动态仿真问题，利用Simulink建立部件级热力学模型。压比和燃气初温对整机性能影响最大，压气机和涡轮特性采用实验数据拟合的方法，燃烧室温升模块考虑了温度对燃料热值的影响，燃气轮机工质的热物性计算采用变比热容的方法。计算结果与试验数据进行了对比，结果表明仿真结果与实验数据误差小，并对误差进行了分析。仿真了部分升速过程，与试验数据对比，变化趋势一致。仿真与实验数据对比验证了模型的准确性，为进一步研究控制策略奠定了基础。
Aiming at the dynamic simulation of micro gas turbines, a component-level thermodynamic model is established by using Simulink. Compressor and turbine characteristics are fitted by experimental data. The method of variable specific heat capacity is used to calculate the thermophysical properties of gas turbine working fluids. The calculation results are compared with the experimental data. The results show that the error between the simulation results and the experimental data is small, and the error is analyzed. Part of the acceleration process is simulated, and the trend is consistent with the experimental data. The accuracy of the model is verified by comparing simulation with experimental data, which lays a foundation for further research on control strategy.
2020,42(11): 91-95 收稿日期：2019-06-06
DOI：10.3404/j.issn.1672-7649.2020.11.018
分类号：TK47
作者简介：李浩冬(1994-)，男，硕士研究生，主要研究领域为发电燃气轮机控制与仿真
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