航空发动机三变量鲁棒控制器设计
Three-variables robust controller design for aero-engine
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摘要: 对发动机三变量控制进行了研究.由于发动机可作为被控量的输出参数很多,用不同的被控量设计的控制器系统性能差别很大,所以选择合适的被控量就显得尤为重要.采用RSCN(鲁棒稳定性和条件数)方法从发动机的14个输出变量中选择三个变量作为发动机的被控量,然后用所选择的发动机输入/输出变量来设计增广LQR(linenr quadratic requlator)控制器,数字仿真表明通过上述方法设计的发动机控制系统响应速度较快,无稳态误差,鲁棒性好.Abstract: Three variables controller for aero-engine was studied in this paper.Given the fact that too many outputs of aero-engine could be used as controlled variables,and different controlled variables have varying performances,it is particularly important to get the suitable controlled variables.Here,the method of choosing best outputs as the controlled variables is RSCN(robust stability and condition number)method.Three output-variables were chosen from 14 outputs of aero-engine.After the selection of controlled variables was completed,an augmented LQR(linenr quadratic requlator) controller was designed.The simulation indicates that the controller with the chosen outputs gets very well dynamic and steady state performance.
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