高超声速飞行器的自适应容错控制

doi:10.3969/j.issn.1000-1093.2021.03.008

摘要/Abstract

摘要： 针对高超声速飞行器同时存在多源干扰和执行机构故障的问题，提出一种自适应容错控制策略，建立多源干扰和执行机构故障同时存在的飞行器模型。设计一种自适应可重构复合控制器，通过动态调节控制器参数补偿执行机构故障对姿态控制系统的影响。对多源干扰的上界进行估计，并结合双曲正切函数补偿多源干扰的影响，使得所设计的控制器在多源干扰和执行机构故障同时存在情况下具有优良的控制性能。虚拟控制指令微分量求解困难，为此在控制器设计中使用1阶滤波器对虚拟控制指令进行滤波处理，避免了复杂的求导过程。利用Lyapunov方法证明了所设计控制器的渐进稳定性，仿真算例结果表明了自适应容错控制策略的可行性和有效性。

关键词: 高超声速飞行器, 多源干扰, 执行机构故障, 容错控制, 自适应控制

Abstract: An adaptive fault-tolerant control strategy is proposed to solve the problems of multiple disturbances and actuator failures in hypersonic vehicle. An aircraft model with multiple disturbances and actuator failures is established. An adaptive reconfigurable compound controller was designed, which can compensate the influence of actuator failure on attitude control system by dynamically adjusting controller parameters. The designed controller has excellent control performance by estimating the upper bound of the multiple disturbances and using the hyperbolic tangent function to compensate the influence of the multiple disturbances when the multiple disturbances and actuator failures exist simultaneously. For the difficult problem of solving the micro-components of virtual control instructions, the first-order filter is used to filter the virtual control instructions in the process of controller design, thus avoiding the complicated derivation process. The asymptotic stability of the controller is proved by using Lyapunov method, and the simulated results show the feasibility and effectiveness of the proposed method.

Key words: hypersonicvehicle, multipledisturbance, actuatorfailure, fault-tolerantcontrol, adaptivecontrol

中图分类号:

岳彬，马文，呼卫军. 高超声速飞行器的自适应容错控制[J]. 兵工学报, 2021, 42(3): 521-529.

YUE Bin, MA Wen, HU Weijun. Adaptive Fault-tolerant Control of Hypersonic Vehicles[J]. Acta Armamentarii, 2021, 42(3): 521-529.

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