Model reduction method based on optimization shaping for aero-engine controller

LI Qiu-hong; SUN Jian-guo; XU Guang-hua

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Model reduction method based on optimization shaping for aero-engine controller

更新时间：2026-07-07

- Model reduction method based on optimization shaping for aero-engine controller
- Vol. 21, Issue 6, (2006)
- 作者机构：
  
  南京航空航天大学能源与动力学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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LI Qiu-hong, SUN Jian-guo, XU Guang-hua. Model reduction method based on optimization shaping for aero-engine controller[J]. 2006, 21(6).
DOI：

LI Qiu-hong, SUN Jian-guo, XU Guang-hua. Model reduction method based on optimization shaping for aero-engine controller[J]. 2006, 21(6). DOI：

摘要

提出了一种基于优化输出拟形的航空发动机多变量控制器降阶方法

并以LQG/LTR控制器降阶为例

成功地将原控制器从8阶降为3阶。首先将控制器分为积分环节部分和稳定子系统部分

采用输出拟形的方法用低阶系统去逼近稳定子系统使二者具有相近的阶跃响应

利用遗传算法优化出低阶系统的参数

将低阶系统和分离出来的积分环节合并后即得到降阶后的控制器。与采用平衡截取Schur降阶方法比较

本方法可将系统阶次降得更低并取得更好的动态响应效果。

Abstract

The model reduction method for aero-engine controller based on the optimization output shaping is presented in this paper.Using the LQG/LTR controller as an example

the 8~(th) order LQG/LTR controller is successfully reduced to a 3~(th) order system with this method.First the controller is divided into the integral part and the stable part.A lower order system is used to approach the stable part.With the optimization output shaping method

the lower order system parameters can be calculated using genetic algorithm(GA).Then the step response of them is very close to each other.At last

combining the optimized lower order system with the separated integral part

the reduced order controller can be obtained.Compared with the balanced truncation Schur model reduction method

this method can make the system with lower order and get better dynamic performance.

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Related Author

ZHANG Li-hui

LING Gui-long

DUAN Na

TANG Jia-peng

TANG Qing-ru

LI Qiu-hong

SUN Jian-guo

YANG Yu-wei

Related Institution

School of Astronautics, Beijing University of Aeronautics and Astronautics

College of Mechanical and Electronic Engineering North University of china

Civil Aviation Flight University of China, Guanghan

College of Energy &amp Power EngineeringNanjing University of Aeronautics and Astronautics

College of Civil Aviation, Nanjing University of Aeronautics and Astronautics

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