Abstract
Due to the errors in calculating external load and thrust system parameters, traditional dynamic positioning model of oil drilling platform has poor positioning accuracy, making it difficult to meet the demand of oil exploitation. Therefore, a new dynamic positioning model of offshore oil drilling platform is designed based on OIPSO algorithm. Based on the mathematical model of offshore oil drilling platform, the external load (wind, wave and ocean current) is calculated, and the movement of the platform is simulated, thus the motion equation of the platform is constructed. Based on this, OIPSO algorithm is used to distribute the thrust force for dynamic positioning, and to determine the value range of decision variables. Then combined with PID controller, the movement of the offshore oil drilling platform can be controlled, so as to realize the dynamic positioning of the platform. The experimental results show that compared with the traditional model, the dynamic positioning error of the proposed model is smaller, and the model has higher validity and feasibility.
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