国防科技大学学报2024，Vol.46Issue(4)：54-62,9.DOI:10.11887/j.cn.202404006
考虑推力损失的运载火箭主动段容错控制
Fault tolerant control of launch vehicle boost phase considering thrust loss
摘要
Abstract
The launch vehicle is prone to power system faults such as thrust drop in the ascending stage,and the traditional control method is difficult to meet the requirements of high precision and high stability control in the case of large interference.In this research,the adaptive augmentation control and fuzzy PD control of launch vehicle were studied,and their control characteristics were analyzed.A dynamic switching control algorithm based on fuzzy rules was proposed,and by calculating the output weight of adaptive PD control and fuzzy PD control,the optimal control scheme of the system was obtained.The control torque reconstruction and the dynamic switching control algorithm were combined to carry out fault-tolerant control research.The results show that the dynamic switching control algorithm based on fuzzy rules can effectively improve the attitude control quality.Compared with other control methods,the maximum yaw angle deviation is reduced by more than 20%,the system response time is at least 15%faster,and there is no oscillation in the control process.关键词
运载火箭/自适应增广控制/模糊PD控制/动态切换/容错控制Key words
launch vehicle/adaptive augmentation control/fuzzy PD control/dynamic switching/fault tolerant control分类
航空航天引用本文复制引用
谢昌霖,杨述明,程玉强..考虑推力损失的运载火箭主动段容错控制[J].国防科技大学学报,2024,46(4):54-62,9.基金项目
国家自然科学基金资助项目(51206181) （51206181）
