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Dynamic Thrust Allocation of Dynamic Positioning Vessel Based on Model Predictive Control

机译:基于模型预测控制的动态定位容器动态推力分配

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The dynamic positioning (DP) vessel maintains its position and heading by active thrusters. For safety reasons, DP vessels are typically designed with redundancy thrusters more than needed for motion control. Optimization theories are useful in finding thrust allocation solutions that minimize fuel consumption and reduce "wear and tear" on a thruster. But several challenges exist such as uncertain thruster model, thruster dynamics characters and the individual limitations of the thrusters. In this paper, a dynamic thrust allocation scheme is presented based on model predictive control (MPC) that directly takes thrusters with dynamics characters and various constraints into account. It is shown in simulations that the MPC dynamic thrust allocation scheme performs better in comparison with an existing static allocation method. Its main advantage is the ability to handle thruster dynamics characters and various constraints.
机译:动态定位(DP)容器通过有源推进器保持其位置和标题。出于安全原因,DP血管通常设计冗余推进器,而不是运动控制所需。优化理论可用于查找推力分配解决方案,以最大限度地降低燃油消耗,并在推进器上减少“磨损和撕裂”。但是存在几种挑战,例如推进器模型不确定,推进器动态特征和推进器的个体限制。在本文中,基于模型预测控制(MPC)来提出动态推力分配方案,其直接带有动态字符和各种约束的推进器。与现有的静态分配方法相比,MPC动态推力分配方案的模拟中示出了。其主要优点是能够处理推进器动力学特征和各种约束。

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