μ-Synthesis control with reference model for aeropropulsion system test facility under dynamic coupling and uncertainty  

作　　者：Jiashuai LIU Xi WANG Xi LIU Meiyin ZHU Xitong PEI Song ZHANG Zhihong DAN 

机构地区：[1]School of Energy and Power Engineering,Beihang University,Beijing 100191,China [2]Zhongfa Aviation Institute,Beihang University,Hangzhou 311115,China [3]Research Institute of Aero-Engine,Beihang University,Beijing 100191,China [4]Science and Technology on Altitude Simulation Laboratory,AECC(Aero Engine Corporation of China)Sichuan Gas Turbine Establishment,Mianyang 621703,China

出　　处：《Chinese Journal of Aeronautics》2023年第10期246-261,共16页中国航空学报（英文版）

基　　金：the National Science and Technology Major Project,China(No.J2019-V-0010-0104);the Postdoctoral Science Foundation of China(No.2021M690289);the National Natural Science Foundation of China(No.52105138);Zhejiang Provincial Natural Science Foundation of China(No.LQ23E060007).

摘　　要：Due to the dynamic coupling and multi-source uncertainties,it is difficult to accurately control the pressure and temperature of the Aeropropulsion System Test Facility(ASTF)in the presence of rapid command and large disturbance.This paper presents the design ofμ-synthesis control to solve the problem.By incorporating the pressure ratio into the linear equation of the control valve,the modeling error of ASTF in the low frequency range is effectively reduced.Then,an uncertain model is established by considering various factors,including parameter variations,modeling error in the low frequency range,unmodeled dynamics,and changes in the working point.To address the dynamic coupling,a diagonal reference model with desired performance is incorporated intoμ-synthesis.Furthermore,all weighting functions are designed according to the performance requirements.Finally,theμ-controller is obtained by using the standardμ-synthesis method.Simulation results indicate that theμ-controller decouples the pressure and temperature dynamics of ASTF.Compared with the multivariable PI controller,integral-μcontroller,and double integral-μcontroller,the proposedμ-controller can achieve higher transient accuracy and better disturbance rejection.Moreover,the robustness of theμ-controller is demonstrated by Monte Carlo simulations.

关 键 词：Aeropropulsion System Test Facility(ASTF) DECOUPLING ROBUSTNESS μ-Synthesis UNCERTAINTY 

分 类 号：V263.3[航空宇航科学与技术—航空宇航制造工程]