The Research on the Hydraulic-Control System for the Heave Compensation under the Deepwater Installation

Based on the heave compensation system during the installation in the deepwater, the performance of the hydraulic unit and the control unit is researched .The mathematical models which is about the flow characteristics ,the load pressure and the Mechanics balance on the hydraulic- Control system are built, and then the models are simulated by using the PID control method. The simulation results are showed under the different levels, and the best match of the control parameters is found by the different objects，to realize the intelligent designing in heave compensation system.