The vessel movement optimisation with excessive control

Abstract

The article discusses the issues of automatic control of the vessel’s movement using excessive control, which allows to organize the movement of the vessel without a drift angle, to reduce the hydrodynamic resistance and fuel consumption. Issues of reducing energy consumption and fuel economy on board, as well as related issues of reducing emissions and improving the environment are especially relevant at the present time. A brief review of literature devoted to improving the energy efficiency of ships was carried out. As a result of the analysis, it was found that the issues of improving energy efficiency are solved in various ways, for example, constructively, by reducing weight, hydrodynamic and aerodynamic drag of the hull, using a sail, creating more advanced power plants, however, the authors have not found methods and algorithms for reducing hydrodynamic drag and fuel consumption through the use of excessive control. It is concluded that the development of such systems is relevant. Mathematical, algorithmic, and software have been developed for an onboard controller simulator of a vessel’s motion control system with excessive control, the operability and efficiency of which has been verified by numerical simulation in a closed circuit with a mathematical model of the control object for various types of vessels, navigation areas and weather conditions. The experiments have confirmed the efficiency and effectiveness of the developed method, algorithmic and software, and allow us to recommend them for practical use in the development of mathematical support for vessel control systems with excessive control.

Automatic Optimal Control of a Vessel with Redundant Structure of Executive Devices

“…The article [30] discusses the issues of automatic control of the vessel's movement using excessive control, which allows to organize the movement of the vessel without a drift angle, to reduce the hydrodynamic resistance and fuel consumption. Issues of reducing energy consumption and fuel economy on board, as well as related issues of reducing emissions and improving the environment are especially relevant at the present time.…”

“…Control redundancy is typically used to improve reliability. At the same time, redundancy in control can also be used to increase the efficiency of the control system [30]. To ensure threedimensional controllability simultaneously in the channels of longitudinal, lateral and rotational movements, the minimum required number of independent controls should be U = 3.…”

Intellectual Information Technologies of the Resources Management in Conditions of Unstable External Environment

“…To exclude subjectivism in the assessment of extreme situations and the adoption of appropriate management decisions, it is useful to learn from related industries of management information in conditions of uncertainty [11,22,23]. Methodological support for the management of flows in a pandemic is presented in [16,18,19,21].…”

Solution of the Problem of Optimizing Route with Using the Risk Criterion

“…The works [18,19,[21][22][23][24] considered methods of increasing the accuracy and reliability of vessel control in automated and automatic control systems, including avoid collision. A more efficient method is to determine a safe trajectory of the vessel, taking into account the trajectories of all vessels involved in the operation.…”