论文摘要
For the problem of attitude control of a quad tilt rotor aircraft with unknown external disturbances, a class of control methods based on a new exponential fast nonsingular terminal sliding surface, a new fast reaching law, and a super twisting sliding mode disturbance observer is investigated. First, the new exponential nonsingular terminal sliding surface is designed by using the advantages of nonsingular terminal sliding mode finite time convergence and strong robustness. Second, to solve the problem of a long convergence time and the serious shaking of the traditional reaching law, a new fast reaching law model with characteristics of the second-order sliding mode is put forward. Third,considering the existence of complex disturbances, the super twisting sliding mode disturbance observer is used to estimate and compensate the composite disturbances online. Finally, compared with the traditional nonsingular fast sliding mode control, simulation results show that the proposed control scheme achieves a good control performance.
论文目录
文章来源
类型: 期刊论文
作者: LIU Haibo,WANG Heping,SUN Junlei
来源: Journal of Systems Engineering and Electronics 2019年01期
年度: 2019
分类: 信息科技,工程科技Ⅱ辑
专业: 航空航天科学与工程
单位: College of Aeronautics, Northwestern Polytechnical University,Shenzhen Research Institute of Northwestern Polytechnical University
基金: supported by the National Natural Science Foundation of China(11202162)
分类号: V249.1
页码: 191-200
总页数: 10
文件大小: 519K
下载量: 30