Feedforward compensation-based L1 adaptive control for aeropropulsion system test facility and hardware-in-the-loop verification  

作　　者：Jiashuai LIU Ai HE Xitong PEI Yifu LONG 

机构地区：[1]Institute for Aero Engine,Tsinghua University,Beijing 100084,China [2]School of Energy and Power Engineering,Beihang University,Beijing 100191,China

出　　处：《Chinese Journal of Aeronautics》2025年第3期85-95,共11页中国航空学报(英文版)

基　　金：supported by the“Shuimu Tsinghua Scholar”Project,China(No.2024SM223);the National Science and Technology Major Project,China(No.Y2022-V-0002-0028).

摘　　要：Aeropropulsion System Test Facility (ASTF) is required to accurately control the pressure and temperature of the airflow to test the performance of the aero-engine. However, the control accuracy of ASTF is significantly affected by the flow disturbance caused by aero-engine acceleration and deceleration. This would reduce the credibility of ASTF’s test results for the aero-engine. Therefore, first, this paper proposes a feedforward compensation-based L1 adaptive control method for ASTF to address this problem. The baseline controller is first designed based on ideal uncoupled closed-loop dynamics to achieve dynamic decoupling. Then, L1 adaptive control is adopted to deal with various uncertainties and ensure good control performance. To further enhance the anti-disturbance performance, a feedforward strategy based on disturbance prediction is designed in the L1 adaptive control framework to compensate for the unmatched flow disturbance, which cannot be measured directly. In addition, this strategy takes into account the effects of actuator dynamics. With this method, the feedforward term can be determined from the nominal model parameters despite uncertainties. Finally, to demonstrate the effectiveness of the proposed method, various comparative experiments are performed on a hardware-in-the-loop system of ASTF. The experimental results show that the proposed method possesses excellent tracking performance, anti-disturbance performance and robustness.

关 键 词：L_(1)adaptive control Feedforward compensation DISTURBANCE COUPLING Hardware-in-the-loop simulation Aeropropulsion system test facility 

分 类 号：V233.7[航空宇航科学与技术—航空宇航推进理论与工程]