MODERN CONTROL THEORY FOR DYNAMIC POSITIONING OF VESSELS

The present range of ALBATROSS dynamic positioning systems from A/S KONGSBERG VAPENFABRIKK is based on the use of modern control theory and Kalman filtering, in order to give smooth optimal control to offshore work vessels using a variety of measurement systems. The control system principles are presented in the paper together with the system performance on board several vessels using different measurements systems. The paper also deals with an extension to the system providing mooring assisted DP. This combination system has a great potential for providing stable positioning in deep water as well as under severe weather conditions. The anchor parameters are estimated on-line to avoid complex and costly measurement techniques.

• Supplemental Notes:
  • Proceedings Fifth Ship Control Systems Symposium, David W. Taylor Naval Ship Research and Development Center, Annapolis, Maryland, October 30-November 3, 1978, Volume 2.
• Corporate Authors:

  David Taylor Naval Ship R&D Center

  Bethesda, MD  United States  20084
• Authors:
  • Ropstad, O D
• Publication Date: 1978

Media Info

• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Control; Control systems; Dynamic positioning; Force; Ocean currents; Offshore drilling platforms; Offshore moorings; Offshore oil industry; Waves
• Old TRIS Terms: Control systems design; Current forces; Wave forces on structures
• Subject Areas: Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00187983
• Record Type: Publication
• Source Agency: David Taylor Naval Ship R&D Center
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Feb 3 1979 12:00AM