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。
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 a better dynamic response is selected and its matrix B, D, F and G is modified based on its steady response. Simulation demonstrates that this method can achieve a desirable steady state output and an almost exact dynamic behavior as the original nonlinear model. The proposed method can be applied to the establishment of the aeroengine state space model, which is helpful in the multivariable digital electronic engine control system design.
出处
《推进技术》
EI
CAS
CSCD
北大核心
2005年第1期46-49,共4页
Journal of Propulsion Technology
关键词
航空发动机
控制
状态空间模型
检验
仿真
Computer simulation
Control systems
Dynamic response
Inspection
Mathematical models
Matrix algebra
Modification
Step response
