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首页> 外文期刊>International Journal of Fuzzy Systems >Three-Dimensional Path Following of an Underactuated AUV Based on Fuzzy Backstepping Sliding Mode Control
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Three-Dimensional Path Following of an Underactuated AUV Based on Fuzzy Backstepping Sliding Mode Control

机译:基于模糊Backstepping滑模控制的欠驱动AUV的三维路径跟踪

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摘要

This paper addresses the problem of three-dimensional (3D) path following control for underactuated autonomous underwater vehicles in the presence of parameter uncertainties and external disturbances. Firstly, 3D path following error model was established based on virtual guidance method. Then, an adaptive robust control system was proposed using backstepping and sliding mode control, and we adopt fuzzy logic theory to approximate unknown nonlinear function to solve the problems of nonlinearity, uncertainties and external disturbances in the path following. System stability was proved by Lyapunov stable theory. Finally, simulations were conducted and the results showed that the controller is of excellent adaptability and robustness in the presence of parameter uncertainties and external disturbances.
机译:本文针对存在参数不确定性和外部干扰的欠驱动自动水下航行器的三维(3D)路径跟踪控制问题。首先,基于虚拟制导方法建立了3D路径跟随误差模型。然后,提出了一种采用后推和滑模控制的自适应鲁棒控制系统,并采用模糊逻辑理论对未知的非线性函数进行近似,以解决路径跟踪中的非线性,不确定性和外部干扰问题。系统稳定性由李雅普诺夫稳定理论证明。最后进行了仿真,结果表明该控制器在存在参数不确定性和外部干扰的情况下具有很好的适应性和鲁棒性。

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