基于二次规划法的动力定位能力分析研究

Analysis Research on Dynamic Positioning Capability Based on Quadratic Programming

动力定位能力分析是动力定位系统前期能力评估的重要环节。动力定位能力分析基于没有角度限制和推力变化率限制的推力分配,通过二分法完成动力定位能力风速包络曲线的绘制,可将其等同为一个具有限制条件的优化问题。本文采用二次规划法完成推力优化分配,结合二分法进行动力定位能力分析。仿真结果表明二次规划法求解推力分配问题及极限风速曲线的有效性。

The analysis of dynamic positioning capability is an important link in the early capability evaluation of the dynamic positioning system. The dynamic positioning capability analysis is based on the thrust distribution without angle restriction and limit of the change rate. Through the dichotomy, the wind envelope curve of dynamic positioning capability is plotted, which can be treated as an optimization with constraints. In this paper, the method of quadratic programming is used to optimize thrust allocation and the dynamic positioning capability is analyzed by combining the dichotomy. The simulation results show that the quadratic programming method is effective to solve the thrust allocation problem and draw the limit wind speed curve.