某型燃气轮机发电机组大负荷突卸时动态特性仿真与试验研究
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摘要
为系统研究某型20 MW级三轴燃气轮机发电机组动态特性,在热力学循环分析的基础上,建立燃气轮机发电机组的动态特性数学模型,基于MATLAB/SIMULINK仿真平台建立其动态仿真模型,针对未来舰船常用的大负荷突卸(12 MW突卸至2 MW)时的动态过程进行了仿真,对其动态仿真和试验进行了对比分析。结果表明:仿真与试验具有较好的吻合性;针对大负荷突卸过程中存在的积分饱和问题,提出采用具有抗积分饱和的控制方法,可有效降低机组稳定时间,提高机组的动态响应,为后续机组控制方法调整提供有力的技术支撑。
For systematic study of the dynamic characteristics of a 20 MW triaxial gas turbine generator set,according to the thermodynamic cycle analysis,we establish a mathematical model of the dynamic characteristics of gas turbine generators on MATLAB/Simulink platform. In this paper,the dynamic process of suddenly unloading at heavy load( Unload 12 MW to 2 MW) commonly used in future warships is simulated,and its dynamic simulation and test are compared and analyzed. The results show that the simulation is in good agreement with the test. In view of the integral saturation problem existing in the process of suddenly unloading at heavy load,we propose a control method with anti-integral saturation,which can effectively reduce the unit stability time,improve the dynamic response of the unit,and provide strong technical support for the subsequent adjustment of the control method of the unit.
For systematic study of the dynamic characteristics of a 20 MW triaxial gas turbine generator set,according to the thermodynamic cycle analysis,we establish a mathematical model of the dynamic characteristics of gas turbine generators on MATLAB/Simulink platform. In this paper,the dynamic process of suddenly unloading at heavy load( Unload 12 MW to 2 MW) commonly used in future warships is simulated,and its dynamic simulation and test are compared and analyzed. The results show that the simulation is in good agreement with the test. In view of the integral saturation problem existing in the process of suddenly unloading at heavy load,we propose a control method with anti-integral saturation,which can effectively reduce the unit stability time,improve the dynamic response of the unit,and provide strong technical support for the subsequent adjustment of the control method of the unit.
引文
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[5]张善科.船用间冷循环燃气轮机甩负荷动态性能仿真研究[J],热能动力工程,2016,31(6):32-35.ZHANG Shan-ke.Simulation study on dynamic performance of Marine intercooling cycle gas turbine load rejection[J].Journal of Engineering for Thermal Energy and Power,2016,31(6):32-35.
[6]张善科.某型发电用三轴燃气轮机间冷系统故障时的控制策略仿真研究[J],热能动力工程,2018,33(1):50-54.ZHANG Shan-ke.Simulation study on the control strategy of a triaxial gas turbine intercooling system fault for power generation[J].Journal of Engineering for Thermal Energy and Power,2018,33(1):50-54.
[7]胡寿松.自动控制理论(第四版)[M].北京:科学出版社,2001.HU Shou-song.Theory of automatic control(Fourth Edition)[M].Beijing:Science Press,2001.
[2]翁史烈.燃气轮机性能分析[M].上海:上海交通大学出版社,1987.WENG Shi-lie.Gas Turbine Performance Analysis[M].Shanghai:Shanghai Jiaotong University Press,1987.
[3]朱行健.燃气轮机工作原理及性能[M].北京:科学出版社,1992.ZHU Xing-jian.Working principle and performance of gas turbine[M].BeiJing:Science Press,1992.
[4]李淑英.燃气轮机性能分析[M].哈尔滨:哈尔滨工程大学出版社,2017.LI Shu-ying.Gas turbine performance analysis[M].Harbin:Harbin Engineering University Press,2017.
[5]张善科.船用间冷循环燃气轮机甩负荷动态性能仿真研究[J],热能动力工程,2016,31(6):32-35.ZHANG Shan-ke.Simulation study on dynamic performance of Marine intercooling cycle gas turbine load rejection[J].Journal of Engineering for Thermal Energy and Power,2016,31(6):32-35.
[6]张善科.某型发电用三轴燃气轮机间冷系统故障时的控制策略仿真研究[J],热能动力工程,2018,33(1):50-54.ZHANG Shan-ke.Simulation study on the control strategy of a triaxial gas turbine intercooling system fault for power generation[J].Journal of Engineering for Thermal Energy and Power,2018,33(1):50-54.
[7]胡寿松.自动控制理论(第四版)[M].北京:科学出版社,2001.HU Shou-song.Theory of automatic control(Fourth Edition)[M].Beijing:Science Press,2001.