Automatic control method and device for lifting ocean platform

Abstract

An automatic control method for lifting an ocean platform is disclosed, and comprises the steps that an electronic level meter detects the inclined angle of the platform and inputting the inclined angle to a main controller; the main controller corrects the inclination data of the platform according to predetermined coefficients Kx and Ky; a linkage operating handle inputs the handle speed command Vo to the main controller and the main controller applies PID (Proportion Integration Differentiation) algorithm to acquire the leg running speed Vout and inputting the Vout to a speed control valve; the speed control valve controls a hydraulic motor to control the leg to run according to the speed command till the platform is lifted. The invention further discloses an automatic control device for lifting an ocean platform. The electric level meter is connected on the platform. The output end of the electric level meter is connected with the input end of the main controller and the output end of the main controller is connected with the speed control valve of each leg. The automatic control method and device for lifting an ocean platform control the leg to life synchronously and maintainthe platform by adopting closed-loop control of platform gesture, and are simple to operate and have high safety.

Description

technical field [0001] The invention relates to a lifting and lowering automatic control method and an automatic control device of an ocean platform, belonging to the technical field of automatic control. Background technique [0002] Offshore platforms provide a convenient and stable offshore operation and living place for human beings to develop and utilize marine resources. The utilization and construction of offshore airports and offshore factories have been more and more widely used in many fields. The offshore platform is composed of a platform and a number of legs that can be lifted and supported. There are generally three legs, which are respectively located at the load-bearing end points of the main hull of the platform. During operation, the platform is supported by the legs and lifted above the sea surface so that Carry out water operations; when transferring, pull up the legs, lower the platform and float on the water surface, and then it can be towed and moved....

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of the existing manual control operation mode for the control of the lifting of the offshore platform, which is difficult to operate, low in work efficiency, and poor in safety, and to provide an automatic control method and automatic control device for the lifting of the offshore platform. That is to use real-time detection of platform levelness, and through the measured platform inclination data, use the PID algorithm to correct the running speed of the pile legs in real time, control the synchronous lifting of the pile legs and control the level of the platform, and realize the safe and stable automatic control of the lifting of the offshore platform. The automatic control method and automatic control device are easy to operate and highly safe

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