Energy efficient propulsion system for dynamic positioning application: Design and assessment

Dr Andrea Coraddu, Silvia Donnarumma*, Mr Ken Chu, Massimo Figari

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review


Dynamic positioning systems are most commonly used in offshore operations. They provide an automated controlling of position and heading of the vessel using its own thrusters to compensate environmental disturbances. The allocation of total required force over the available actuators is a complex task, as DP-systems are over-actuated. Therefore, one of the main challenges faced by the industry is constantly seeking to improve the systems efficiency for both sustainability and economic reasons. Furthermore, it is important to evaluate the performance of a DP vessel under critical conditions. In this paper, the authors aim to compare different thrust allocation logics based on the optimisation of different objective functions. Using a simple validation tool, the authors were able to investigate the overall efficiency of a dynamic positioning propulsion system and its ability to operate when a failure occurs.

Original languageEnglish
Number of pages8
JournalProceedings of the International Ship Control Systems Symposium
Publication statusPublished - 2018
Externally publishedYes
Event14th International Naval Engineering Conference and Exhibition incorporating the International Ship Control Systems Symposium, INEC/iSCSS 2018 - Glasgow, United Kingdom
Duration: 2 Oct 20184 Oct 2018


  • Dynamic positioning
  • Failure analysis
  • Thrust allocation logic


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