| 基于非线性模型的燃气轮机热参数故障诊断及仿真 |
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| 引用本文： | 于美玲,刘永文.基于非线性模型的燃气轮机热参数故障诊断及仿真[J].热能动力工程,2011,26(6). |
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| 作者姓名： | 于美玲 刘永文 |
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| 作者单位： | 上海交通大学机械与动力工程学院,上海,200240 |
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| 基金项目： | 上海市科委基金资助项目(08DZ1204202) |
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| 摘 要： | 燃气轮机气动部件故障的发生会导致机组性能参数的变化,且为复杂的非线性变化。在建立燃气轮机标准模型的基础上,研究了系统的故障性能参数的变化及建立了系统的故障模型。首先通过标准模型仿真数据和机组故障运行数据的对比分析,初步定位机组的故障部件,进而提出了修正部件特征性能参数的方法,通过模块实现机组故障的非线性表达,在EASY5仿真平台上建立了燃气轮机系统的故障模型。利用该模型可通过机组非线性模型定量表达部件性能参数的变化,准确地实现机组的故障定位和仿真。以某联合循环机组的燃气轮机为例对此方法进行了验证,实现了机组故障工况的重现,为机组性能特性研究、故障诊断和故障分析奠定了一定的基础。
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| 关 键 词： | 燃气轮机 标准模型 故障修正因子 故障模型 |
Thermal Parameter Fault Diagnosis and Simulation of a Gas Turbine Based on a Non-linear Model |
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| YU Mei-ling,LIU Yong-wen.Thermal Parameter Fault Diagnosis and Simulation of a Gas Turbine Based on a Non-linear Model[J].Journal of Engineering for Thermal Energy and Power,2011,26(6). |
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| Authors: | YU Mei-ling LIU Yong-wen |
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| Affiliation: | YU Mei-ling,LIU Yong-wen(College of Mechanical and Power Engineering,Shanghai Jiaotong University,Shanghai,China,Post Code: 200240) |
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| Abstract: | Occurrence of various faults to the aerodynamic components of a gas turbine may invariably lead to a change of its performance parameters and such a change is a complex and non-linear one.On the basis of the establishment of a standard model for gas turbines and through a contrast analysis of the simulation data obtained by using the model in question and the operating data of the unit when a fault is happening,the faulty component could be preliminarily located and a method for correcting the characteristi... |
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| Keywords: | gas turbine standard model fault correction factor fault model |
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