自升式海洋平台平衡升降控制策略及试验

受海底环境和载荷变化等因素影响,自升式海洋平台在升降过程中需实时确保姿态平衡。针对四桩腿多电机驱动自升式海洋平台的上升作业,提出一种速度-倾角偏差耦合同步控制策略。搭建了四桩腿海洋升降平台物理模型,根据该控制策略完成了模型平台的电气设计及上升程序设计,并进行了模型平台上升时的平衡试验,平台姿态倾角能够保持在合理范围内,验证了该升降系统控制策略的正确性,可为海洋平台的平衡升降控制提供参考。

Equilibrium Lifting Control Strategy and Experimental Study of a Jack-up Offshore Platform

Affected by factors such as the seabed environment and load changes, the jack-up offshore platform needs to ensure the balance of the platform posture in real time during the lifting process. In this study, according to the characteristic of the jacking operation on a four-leg multimotor-driven jack-up offshore platform, a synchronous control strategy of speed-inclination deviation coupling is presented .To verify the feasibility of the control strategy, a physical model of a four-leg offshore lifting platform is built. The design of the lifting program and the electrical design are completed according to the control strategy and a prototype test is carried out to verify the accuracy of the control strategy of the lifting system. When the platform lifting operation is realized, the attitude inclination angle is guaranteed to be within a reasonable range; if the platform inclination angle exceeds the safety requirement, the lifting program can adjust the posture of the platform by adjusting the speed of the pile leg motor to ensure that the platform works within the safe range.It can provide reference for balanced lifting of offshore platforms.