Novel Fuzzy Approximation Control Scheme for Flexible Air-Breathing Hypersonic Vehicles With Non-Affine Dynamics and Amplitude and Rate Constraints
Novel Fuzzy Approximation Control Scheme for Flexible Air-Breathing Hypersonic Vehicles With Non-Affine Dynamics and Amplitude and Rate Constraints
复制标题
具有非仿射动力学和幅度和速率约束的灵活吸气式高超声速飞行器的新型模糊逼近控制方案
DOI：
10.1109/access.2019.2920418
复制
发表时间：
2019-01-01
期刊：
影响因子：
3.9
通讯作者：
Li, Gang
中科院分区：
文献类型：
--
作者：
Li, Xingge;Li, Gang
针对具有幅值和速率约束的柔性吸气式高超声速飞行器（FAHV）非仿射模型，提出了一种新的模糊控制方案。首先将FAHV的非仿射动力学分解为速度子系统和高度子系统，然后将各子系统的非仿射模型转换为等价的纯反馈形式，并采用模糊逼近器估计各子系统的总不确定性。由于控制系统的输入可以由实际执行器限制，提出了一种新的误差补偿辅助系统来解决执行器的幅值和速率约束，并设计了带辅助系统的模糊控制器。利用李雅普诺夫方法证明了闭环系统的稳定性。通过仿真验证，证明了控制系统的有效性能。
This paper proposes a novel fuzzy control scheme for flexible air-breathing hypersonic vehicle (FAHV) non-affine models with amplitude and rate constraints. First, the non-affine dynamics of the FAHV is decomposed into velocity subsystem and altitude subsystem, then the non-affine models of each subsystem are converted into equivalent pure feedback forms, and the fuzzy approximator is used to estimate the total uncertainties of each subsystem. Since the input of control system can be limited by the actual actuator, a new error compensation auxiliary system is proposed to solve the amplitude and rate constraints of the actuator, and a fuzzy controller with auxiliary systems is designed. The stability of the closed-loop system is proved by the Lyapunov method. Through simulation verification, the effective performance of the control system has been proved.