A probabilistic robust mixed H2/H∞ fuzzy control method for hypersonic vehicles based on reliability theory

被引:3
|
作者
Yin, Xiaomeng [1 ]
Li, Xinming [2 ]
Liu, Lei [1 ]
Wang, Yongji [1 ]
Wei, Xing [1 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Automat, Natl Key Lab Sci & Technol Multispectral Informat, Wuhan 430074, Hubei, Peoples R China
[2] Beijing Aerosp Automat Control Inst, Beijing, Peoples R China
来源
关键词
Hypersonic vehicle; fuzzy control; reliability method; mixed H-2/H-infinity control; robust control; SLIDING-MODE CONTROL; SYSTEMS; DESIGN; AIRCRAFT; LQR;
D O I
10.1177/1729881417754153
中图分类号
TP24 [机器人技术];
学科分类号
080202 ; 1405 ;
摘要
Achieving balance between robustness and performance is always a challenge in the hypersonic vehicle flight control design. In this research, we focus on dealing with uncertainties of the fuzzy control system from the viewpoint of reliability. A probabilistic robust mixed H-2/H-infinity fuzzy control method for hypersonic vehicles is presented by describing the uncertain parameters as random variables. First, a Takagi-Sugeno fuzzy model is employed for the hypersonic vehicle nonlinear dynamics characteristics. Next, a robust fuzzy controller is developed by solving a reliability-based multi-objective linear matrix inequality optimization problem, in which the H-2/H-infinity performance is optimized under the condition that the system is robustly reliable to uncertainties. By this method, the system performance and reliability can be taken into account simultaneously, which reduces the conservatism in the robust fuzzy control design. Finally, simulation results of a hypersonic vehicle demonstrate the feasibility and effectiveness of the presented method.
引用
收藏
页数:15
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