飞控与探测2024，Vol.7Issue(4)：54-65,12.
基于自适应预设性能的运载火箭姿态容错控制
Fault Tolerant Attitude Control of Launch Vehicles Based on Adaptive Prescribed Performance
摘要
Abstract
Aiming at the attitude fault-tolerant control problem of launch vehicle with model uncertainty,external environment disturbance and actuator fault,an adaptive prescribed performance fault-tolerant control method is pro-posed. Firstly,based on the attitude motion model,actuator fault model and attitude tracking error model of the launch vehicle,the mathematical model of fault-tolerant control of the launch vehicle is established. Then,a cascade extended state observer is used to observe and compensate for total disturbances,and a fixed time convergent adap-tive preset performance function is proposed to address the problem of sudden changes in attitude tracking errors caused by faults. A prescribed performance backstepping control law is designed,and the stability of the closed-loop control system is proved;Finally,through numerical simulation,it is verified that the control method can ensure that the attitude tracking error meets the prescribed performance index under the condition of actuator failure.关键词
运载火箭/容错控制/执行机构故障/预设性能控制/级联扩张状态观测器Key words
launch vehicles/fault tolerant control/actuator fault/prescribed performance control/cascade extended state observer分类
航空航天引用本文复制引用
杨宇豪,王忠森,许炜平,廖宇新..基于自适应预设性能的运载火箭姿态容错控制[J].飞控与探测,2024,7(4):54-65,12.基金项目
湖南省自然科学基金青年基金项目(2022JJ40633) （2022JJ40633）
