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Path Following Control of an AUV under the Current Using the SVR-ADRC
Author(s) -
Zheping Yan,
Yibo Liu,
Jiajia Zhou,
Di Wu
Publication year - 2014
Publication title -
journal of applied mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.307
H-Index - 43
eISSN - 1687-0042
pISSN - 1110-757X
DOI - 10.1155/2014/476419
Subject(s) - control theory (sociology) , robustness (evolution) , active disturbance rejection control , computer science , nonlinear system , support vector machine , controller (irrigation) , stability (learning theory) , control (management) , state observer , artificial intelligence , machine learning , biochemistry , chemistry , physics , quantum mechanics , biology , agronomy , gene
A novel active disturbance rejection control (ADRC) controller is proposed based on support vector regression (SVR). The SVR-ADRC is designed to force an underactuated autonomous underwater vehicle (AUV) to follow a path in the horizontal plane with the ocean current disturbance. It is derived using SVR algorithm to adjust the coefficients of the nonlinear state error feedback (ELSEF) part in ADRC to deal with nonlinear variations at different operating points. The trend of change about ELSEF coefficients in the simulation proves that the designed SVR algorithm maintains the characteristics of astringency and stability. Furthermore, the path following errors under current in simulation has proved the high accuracy, strong robustness, and stability of the proposed SVR-ADRC. The contributions of the proposed controller are to improve the characteristics of ADRC considering the changing parameters in operating environment which make the controller more adaptive for the situation

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