建立航空发动机状态空间模型的修正方法

推进技术 ›› 2005, Vol. 26 ›› Issue (1): 46-49.

建立航空发动机状态空间模型的修正方法

郑铁军,王曦,罗秀芹,李其汉

北京航空航天大学能源与动力工程学院北京100083;北京航空航天大学能源与动力工程学院北京100083;空军工程大学工程学院;北京100083;北京航空航天大学能源与动力工程学院北京100083

发布日期:2021-08-15

Modified method of establishing the state space model of aeroengine

School of Jet Propulsion, Beijing Univ. of Aeronautics and Astronautics, Beijing 100083, China;School of Jet Propulsion, Beijing Univ. of Aeronautics and Astronautics, Beijing 100083, China;Engineering Inst.,Air Force Engineering Univ., Xi’an 710038, China;School of Jet Propulsion, Beijing Univ. of Aeronautics and Astronautics, Beijing 100083, China

Published:2021-08-15

摘要/Abstract

摘要： 以阶跃输入响应进行模型的检验, 提出了状态空间模型的修正方法: 基于动态响应较好的状态空间模型, 进行其矩阵B, D, F, G的修正, 获得基于稳态修正的模型, 解决了航空发动机状态空间模型检验与修正的问题。仿真表明, 使用该方法修正的状态空间模型具有与原非线性数学模型完全一致的稳态响应和基本一致的动态过程响应。这种方法为航空发动机多变量数字电子控制器的设计奠定了强有力的基础。

关键词: 航空发动机;控制;状态空间模型+;检验;仿真

Abstract: The verification and modification problems of the state space model of aeroengine is concerned. The model of interest is verified based on its step response and a kind of modification method to the model is provided: the model which has abetter dynamic response is selected and its matrix B, D, F, G is modified based on its steady response. Simulation demonstrates that this method can achieve a desirable steady state output and an almost exact dynamical behavior as the original nonlinear model. The proposed method can be applied to the establishment of the aeroengine state space model, which will be helpful in the multivariable digital electronic engine control system design.

Key words: Aircraft engine;Control;State space model;Inspection;Eimulation

郑铁军,王曦,罗秀芹,李其汉. 建立航空发动机状态空间模型的修正方法[J]. 推进技术, 2005, 26(1): 46-49.