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ijcoe 2016, 2 - : 1-7 Back to browse issues page
Design of Control Strategy for Swarm Autonomous Vessels for Circling Mission in Calm Water
Hassan Sayyaadi , Abbas Ghasemzade Ahrami
Associated Professor, Center of Excellence in Hydrodynamics and Dynamics of Marine Vehicles, School of Mechanical Engineering, Sharif University of Technology
Abstract:   (445 Views)
Control of a group of autonomous surface vessels, called agents, with realistic dynamic for circling mission is addressed with the aid of Lyaponov and graph theory. In this brief, to obtain a cooperative controller in between agents, new coordination transfer are presented and graph theory is used to illustrate communication between the agents. With the aid of Lyaponov theory and graph theory application, decentralized and scalable controllers are designed for group of autonomous vessels to converge to a desired geometry for circling around a specific target point. Due to the realistic agent dynamics, non-holonmic dynamics and turning constrains of the vessels are considered in the design process. Advantage of the proposed controller is: it uses domestic information between agents and the controller is designed based on these information. The agents herein represent a large class of autonomous vessels with realistic limitation on vessel motion. Besides, in previous works inertia and damping matrix of the agents were assumed to be diagonal and constant, in this research work non-diagonal inertia matrix and variable damping matrix are under consideration. MATLAB and Simulink are used to represent the effectiveness of the proposed controllers. As the simulation results show, designed controllers perform well on the system and the objective duty is achieved appropriately.
Keywords: Multi-agent system, Group coordination, nonlinear control, Swarm, Surface vessel, Autonomous vessel, Formation control, Vessel dynamics
Full-Text [PDF 540 kb]   (269 Downloads)    
Type of Study: Research | Subject: Sub-sea Technology
Received: 2018/01/24 | Accepted: 2018/01/24 | Published: 2018/01/24
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Sayyaadi H, Ghasemzade Ahrami A. Design of Control Strategy for Swarm Autonomous Vessels for Circling Mission in Calm Water . ijcoe. 2016; 2 :1-7
URL: http://ijcoe.org/article-1-71-en.html

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International Journal of Coastal and Offshore Engineering International Journal of Coastal and Offshore Engineering
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