摘要
针对高空台进气环境模拟系统开展飞行工况测试中存在的发动机状态突然改变的鲁棒控制问题,提出了一种自适应高阶滑模控制(AHSMC)策略。通过对高空台的进气环境模拟系统进行理论和实践分析,建立了一个动态二阶模型。设计了自适应高阶滑模控制器,利用积分终端滑模函数设计的自适应增益和自适应律提高高空台进气环境模拟系统的响应速度和抗扰能力。在高空台进气环境模拟仿真平台上进行了工况实验验证,并与当前工程中使用的线性自抗扰控制器(LADRC)进行对比。结果显示,AHSMC策略控制下响应时间缩短了40.24%,超调量减少了87.93%,稳态误差减少了87.11%。此策略对进气环境模拟系统实现了更高精度的控制,满足了航空发动机高性能测试的需求。
Aiming at the robust control problem of sudden engine state changes in the air intake environ⁃ment simulation system of altitude ground test facilities(AGTF)in conducting flight condition tests,an adaptive high-order sliding mode control(AHSMC)strategy is proposed.Firstly,a dynamic second-order model is estab⁃lished through theoretical and practical analyses of the air intake environment simulation system of AGTF.Sec⁃ondly,an adaptive high-order sliding mode controller is designed to improve the response speed and disturbance immunity of the air intake environment simulation system of AGTF using an adaptive law and an adaptive gain de⁃signed by the integral terminal sliding mode function.Finally,the experimental verification of the working condi⁃tions is carried out on the air intake environment simulation platform of AGTF and compared with the linear active disturbance rejection control(LADRC)used in current engineering application.The results show that the re⁃sponse time is reduced by 40.24%,the amount of overshooting is reduced by 87.93%,and the steady state error is reduced by 87.11%under the control of AHSMC strategy.This strategy achieves higher precision control of the air intake environment simulation system and meets the demand of high performance testing of aeroengines.
作者
蒋林
白克强
白月
陈华
王信
JIANG Lin;BAI Keqiang;BAI Yue;CHEN Hua;WANG Xin(College of Information Engineering,Southwest University of Science and Technology,Mianyang 621010,China;AECC Sichuan Gas Turbine Establishment,Mianyang 621703,China)
出处
《推进技术》
北大核心
2025年第9期238-248,共11页
Journal of Propulsion Technology
基金
西南科技大学研究生创新基金(24ycx1056)
四川省自然科学基金(2024NSFSC0448)。
关键词
高空台
进气环境模拟系统
自适应高阶滑模控制器
自适应律
积分终端滑模函数
Altitude ground test facility
Air intake environment simulation system
Adaptive high-order sliding mode controller
Adaptative law
Integral terminal sliding mode function
