A Robust Predictive Control Approach for Underwater Robotic Vehicles
| Autor: | Shahab Heshmati-alamdari, George C. Karras, Kostas J. Kyriakopoulos, Panos Marantos |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Computer science 02 engineering and technology Workspace Motion control 01 natural sciences Computer Science::Robotics Attitude control Vehicle dynamics Model predictive control 020901 industrial engineering & automation Control and Systems Engineering Control theory Robustness (computer science) 0103 physical sciences Robot Electrical and Electronic Engineering Underwater 010301 acoustics |
| Zdroj: | IEEE Transactions on Control Systems Technology. 28:2352-2363 |
| ISSN: | 2374-0159 1063-6536 |
| DOI: | 10.1109/tcst.2019.2939248 |
| Popis: | This article presents a robust nonlinear model predictive control (NMPC) scheme for autonomous navigation of underwater robotic vehicles operating in a constrained workspace including the static obstacles. In particular, the purpose of the controller is to guide the vehicle toward specific way points with guaranteed input and state constraints. Various constraints, such as obstacles, workspace boundaries, predefined upper bounds for the velocity of the robotic vehicle, and thruster saturations, are considered during the control design. Moreover, the proposed control scheme is designed at dynamic level, and it incorporates the full dynamics of the vehicle in which the ocean currents are also involved. Hence, taking the thrusts as the control inputs of the robotic system and formulating them accordingly, the vehicle exploits the ocean current dynamics when these are in favor of the way-point tracking mission, resulting in reduced energy consumption by the thrusters. The robustness of the closed-loop system against parameter uncertainties has been analytically guaranteed with convergence properties. The performance of the proposed control strategy is experimentally verified using a 4 degrees of freedom (DoF) underwater robotic vehicle inside a constrained test tank with sparse static obstacles. |
| Databáze: | OpenAIRE |
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