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采用模块化建模方法建立了燃气轮机系统仿真模型,定量分析了冷却抽气对压气机转速、排烟温度、排烟流量和发电量的影响,分析结果表明冷却抽气对排烟温度的影响最小,对排烟流量和压气机转速的影响较大,对发电量仿真结果的影响最大。针对不同仿真目标,给出了燃气轮机冷却抽气模型选择方案。
The gas turbine system simulation model was established by using modular modeling method. The influence of cooling extraction on compressor speed, exhaust gas temperature, exhaust flow and power generation was quantitatively analyzed. The results show that cooling exhaust has the least influence on exhaust gas temperature , Which has a great influence on exhaust flow and compressor speed, and has the greatest impact on the simulation results of power generation. According to different simulation targets, the gas turbine cooling extraction model selection is given.