航空发动机四输入四输出H_∞控制与仿真  

Design and Simulation of H_∞ Controller for Aeroengines with Four-inputs and Four-outputs

作　　者：代冀阳[1] 李华英[1] 应进[1] 李秋红[2] 

机构地区：[1]南昌航空大学无损检测技术教育部重点实验室,江西南昌330063 [2]南京航空航天大学能源与动力学院,江苏南京210016

出　　处：《计算机仿真》2011年第1期92-97,共6页Computer Simulation

摘　　要：随着对航空发动机性能要求的不断提高,发动机控制系统逐渐发展成为多变量控制系统。为提高静态稳定性和动态品质性能,根据发动机的工作原理确定发动机的四输入四输出变量,并建立航空发动机四变量小偏差状态变量模型,将H∞混合灵敏度设计方法应用于航空发动机多变量控制中,通过加权阵的选取获得了满足性能指标要求的航空发动机H∞鲁棒控制器进行仿真,仿真结果表明,控制系统不仅在标称设计点满足各项性能指标要求,且在整个飞行包线内具有鲁棒稳定性和鲁棒性能。The control system of an aeroengine has become multivariable control system along with the improvement of the performance requirements of aeroengine. In this paper, a State Variable Model of aeroengine under the condition of small perturbation is estabilished according to the general principles of aeroengine operation and variable selection, to which a robust H∞ controller design theory is applied, The satisfactory H∞ controller of the aeroengine is obtained by careful selecting weighting matrixes in the mixed sensity H∞ design method. The simulation results show that the designed control system not only meets required performance requirements at the design point, but also pos- sesses robust stability and robust performance within the entire flight envelope.

关 键 词：航空发动机 四输入四输出 小偏差模型 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] V249.1[自动化与计算机技术—控制科学与工程]