中国电机工程学报2024，Vol.44Issue(8)：3155-3164,中插18,11.DOI:10.13334/j.0258-8013.pcsee.222624
考虑透平背压影响的燃气轮机动态特性研究
Study on Dynamic Characteristics of Gas Turbine Considering the Influence of Turbine Back Pressure
摘要
Abstract
The back pressure of a gas turbine is one of the important parameters that determine its performance,and it has an undeniable impact on the operational efficiency and safety of the gas turbine.This article adopts a modular modeling method,combined with the control strategy of a gas turbine,to establish a dynamic simulation model of a heavy-duty gas turbine based on a simulation platform.The dynamic characteristics of the unit during the process of turbine back pressure regulation and load fluctuation are studied.The results indicate that the established dynamic model can accurately simulate the dynamic characteristics of heavy-duty gas turbines.The simulation results of different input signals are compared and analyzed to explore the impact of different trends in turbine back pressure on the dynamic characteristics of gas turbines,including the impact of temperature changes at the inlet and outlet of gas turbines under different control strategies on the unit when the back pressure decreases.The differences in dynamic responses of various parameters to disturbances under different control strategies are discovered.The optimization effect of turbine back pressure regulation on the dynamic response characteristics and variable geometry performance of gas turbines has been verified,including the faster response speed and higher stage efficiency of gas turbines under low back pressure.Turbine back pressure regulation can ensure that the turbine inlet and outlet temperature remains close to the target value within a larger load range,thereby facilitating the efficient and stable operation of the unit.关键词
燃气轮机/模块化建模/动态模型/透平背压/响应特性Key words
gas turbine/modular modeling/dynamic model/turbine back pressure/response characteristic分类
能源科技引用本文复制引用
何怡冲,李永毅,林育超,张国强,杨泽雨,张磊..考虑透平背压影响的燃气轮机动态特性研究[J].中国电机工程学报,2024,44(8):3155-3164,中插18,11.基金项目
国家科技重大专项(J2019-L-0009-0009) （J2019-L-0009-0009）
中央高校基本科研业务费项目(2021MS078) （2021MS078）
河北省自然科学基金面上项目(E2020502013). National Science and Technology Major Project(J2019-L-0009-0009) （E2020502013）
Fundamental Research Funds for the Central Universities(2021MS078) （2021MS078）
Natural Science Foundation of Hebei Province(E2020502013). （E2020502013）
