“Experimental Validation of a Marine Propeller Thrust Estimation Scheme”

Authors: Luca Pivano, Øyvind N. Smogeli, Tor A. Johansen and Thor I. Fossen,
Affiliation: NTNU, Department of Engineering Cybernetics and NTNU
Reference: 2007, Vol 28, No 4, pp. 105-112.

Keywords: Propulsion, state estimation, nonlinear, observers

Abstract: A thrust estimation scheme for a marine propeller has been experimentally tested in waves and with a device that simulates the influence of a vessel hull. The scheme is formed by a nonlinear propeller torque observer and a mapping to generate the thrust from the observed torque. The mapping includes the estimation of the advance number. This is utilized to improve the performance when the propeller is lightly loaded. The advance speed is assumed to be unknown, and only measurements of shaft speed and motor torque have been used. Accurate results have been obtained in experimental tests.

PDF PDF (597 Kb)        DOI: 10.4173/mic.2007.4.2

DOI forward links to this article:
[1] L. Pivano, T.A. Johansen and O.N. Smogeli (2009), doi:10.1109/TCST.2008.922602
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  title={{Experimental Validation of a Marine Propeller Thrust Estimation Scheme}},
  author={Pivano, Luca and Smogeli, Øyvind N. and Johansen, Tor A. and Fossen, Thor I.},
  journal={Modeling, Identification and Control},
  publisher={Norwegian Society of Automatic Control}