航空发动机线性变参数建模方法研究

推进技术 ›› 2007, Vol. 28 ›› Issue (4): 418-421.

航空发动机线性变参数建模方法研究

李华聪,王鑫,韩小宝,孙有田

西北工业大学动力与能源学院;陕西西安710072;西北工业大学动力与能源学院;陕西西安710073;西北工业大学动力与能源学院;陕西西安710074;海军驻航天三院军代表室北京100074

发布日期:2021-08-15

Study of aeroengine linear parameter varying modeling

School of Power and Energy,Northwestern Polytechnic Univ.,Xi’an 710072,China;School of Power and Energy,Northwestern Polytechnic Univ.,Xi’an 710073,China;School of Power and Energy,Northwestern Polytechnic Univ.,Xi’an 710074,China;Navy Representative office in the third Academy of CASIC,Beijing 100074,China

Published:2021-08-15

摘要/Abstract

摘要： 针对航空发动机增益调度控制技术使用的线性变参数(Linear Parameter Varying-LPV)模型,研究了两种LPV建模方法—雅克比和基于变化率方法。建立了涡扇发动机准LPV模型,进行了动态仿真验证。结果表明,与非线性模型相比,所建立的准LPV模型具有较好的动态性能,为航空发动机LPV增益控制研究提供了保证。

关键词: 航空发动机;增益调度;线性变参数模型+;雅克比方法;基于变化率方法+

Abstract: Gain-scheduling control techniques based on the LPV(Linear Parameter Varying) model have increasingly been applied to aeroengine control system.This article describes two techniques of LPV modeling which are Jacobian technique and velocity-based technique,respectively.A quasi-LPV model of a turbofan engine is constructed and simulated over dynamic process.Compared with aeroengine nonlinear model,the results indicate this model has good dynamic performance.Thus,a practice method is provided for LPV gain-scheduling research of aeroengine control system.

Key words: Aeroengine;Gain-scheduling;Linear parameter varying model+;Jacobian technique;Velocity-based technique+

李华聪,王鑫,韩小宝,孙有田. 航空发动机线性变参数建模方法研究[J]. 推进技术, 2007, 28(4): 418-421.