Vertical Position Control for Top Tensioned Riser with Active Heave Compensator

The top and bottom angles of a marine riser are of crucial importance during e.g. drilling and workover operations. A ver- tical position control with active heave compensator (AHC) is proposed to maintain the safety of the riser when subjected to environmental excitations. The possibility of reduci...

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Bibliographic Details
Main Authors: Leira, Bernt J., Fang, Shaoji, Blanke, Mogens
Format: Other Non-Article Part of Journal/Newspaper
Language:English
Published: 2011
Subjects:
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water
SDG 14 - Life Below Water
Arctic
Online Access:https://orbit.dtu.dk/en/publications/fbaaab06-728d-4f46-b4d0-d1ca60d4f303
http://www.asmeconferences.org/OMAE2011/index.cfm
Description
Summary:The top and bottom angles of a marine riser are of crucial importance during e.g. drilling and workover operations. A ver- tical position control with active heave compensator (AHC) is proposed to maintain the safety of the riser when subjected to environmental excitations. The possibility of reducing the maxi- mum angular response level by adjusting the vertical rod position by means of an active heave compensator is investigated with a positioning algorithm based on adaptive backstepping. Riser top and bottom angles are dealt with by the algorithm in order to minimize both angles.

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