基于主导因素法的燃气轮机机理数据混合建模  

Hybrid Modeling of Gas Turbine Based on Dominant Factors Method

作　　者：张元哲 刘培[1] 李政[1] ZHANG Yuan-Zhe;LIU Pei;LI Zheng(Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学能源与动力工程系,北京100084

出　　处：《工程热物理学报》2021年第11期2787-2795,共9页Journal of Engineering Thermophysics

基　　金：国家科技重大专项(No.2017-I-0002-0002)。

摘　　要：燃气轮机是我国能源结构调整与优化中的重要装备,对其进行性能监测有利于保证其安全经济运行。本文提出了一种基于主导因素法的燃气轮机机理数据混合建模方法,结合对燃气轮机机理与现场运行数据的分析,建立了燃气轮机机理数据混合模型,并以某典型9E燃气轮机的现场运行数据进行了模型验证,结果表明,本文所建模型计算结果平均相对误差均在0.8%以下,其中,温度参数平均相对误差均在0.27%以下,具有较高的精度,可以用于燃气轮机性能监测。Gas turbine is an important equipment in the adjustment and optimization of energy structure in China,and its performance monitoring is conducive to ensure its safe and economic operation.In this paper,a mechanism-data hybrid modeling method of gas turbine based on dominant factors method is proposed.Combined with the analysis of gas turbine mechanism and field operation data,a mechanism-data hybrid model of gas turbine is established.The model is validated by the field operation data of a typical 9E gas turbine.The results show that the average relative errors of the calculation parameters of the model are all less than 0.8%,and the average relative errors of temperature parameters are less than 0.27%,which has high accuracy and can be used for gas turbine performance monitoring.

关 键 词：燃气轮机 机理数据混合建模 主导因素 变工况 

分 类 号：TK471[动力工程及工程热物理—动力机械及工程]