Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Trygve Lauvdal"'
Publikováno v:
Modeling, Identification and Control, Vol 22, Iss 4, Pp 211-225 (2001)
In this paper considerations about modelling and simulation of variable speed thruster drives are made with comparison to full scale measurements from Varg FPSO. For special purpose vessels with electric propulsion operating in DP (Dynamic Positionin
Externí odkaz:
https://doaj.org/article/dccb413d749e41f483a8fda716107dc0
Autor:
Trygve Lauvdal, Richard M. Murray
Publikováno v:
Modeling, Identification and Control, Vol 20, Iss 4, Pp 225-240 (1999)
Motivated by some specific problems in flight control and roll stabilization of ships, we present a technique for stabilizing a chain of integrators in the presence of rate limitations on the input. Our technique improves on several existing techniqu
Externí odkaz:
https://doaj.org/article/c7003ef4cf254fd99aa9be6fe759f5c2
Autor:
Trygve Lauvdal, Thor I. Fossen
Publikováno v:
Modeling, Identification and Control, Vol 17, Iss 2, Pp 107-119 (1996)
A stable minimum phase transfer function from rudder angle to yaw angle is used to design a globally stable adaptive ship autopilot. First-order wave disturbances in yaw are filtered by applying a notch filter. Integral action is introduced by using
Externí odkaz:
https://doaj.org/article/d91a0fbf2e4e4b3494917c2fd28218c0
Publikováno v:
Modeling, Identification and Control, Vol 22, Iss 4, Pp 211-225 (2001)
In this paper considerations about modelling and simulation of variable speed thruster drives is made with comparison to full scale measurements from Varg FPSO. For special purpose vessels with electric propulsion operating in DP (Dynamic Positioning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d51670552f56f5ef130105babfdaee82
http://www.mic-journal.no/PDF/2001/MIC-2001-4-1.pdf
http://www.mic-journal.no/PDF/2001/MIC-2001-4-1.pdf
Autor:
Trygve Lauvdal, Thor I. Fossen
Publikováno v:
International Journal of Adaptive Control and Signal Processing. 12:605-622
A stable minimum phase transfer function from rudder angle to yaw angle is used to design a globally convergent adaptive ship autopilot. First-order wave disturbances in yaw are filtered by applying a notch filter. Integral action is introduced by au
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9042125919643d4417525b897ca66613
https://doi.org/10.1002/(sici)1099-1115(199812)12:8<605::aid-acs516>3.0.co
https://doi.org/10.1002/(sici)1099-1115(199812)12:8<605::aid-acs516>3.0.co
Autor:
Trygve Lauvdal, Thor I. Fossen
Publikováno v:
IFAC Proceedings Volumes. 31:111-116
This paper describes a new gain scheduling algorithm for handeling the problem of hard nonlinearities like input rate and magnitude saturations. The proposed algorithm was originally designed for stabilization of integrator chains with input rate sat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f74b0881cf9ffed5d908faaa415795b
https://doi.org/10.1016/s1474-6670(17)38426-4
https://doi.org/10.1016/s1474-6670(17)38426-4
Autor:
Thor I. Fossen, Trygve Lauvdal
Publikováno v:
Modeling, Identification and Control, Vol 17, Iss 2, Pp 107-119 (1996)
A stable minimum phase transfer function from rudder angle to yaw angle is used to design a globally stable adaptive ship autopilot. First-order wave disturbances in yaw are filtered by applying a notch filter. Integral action is introduced by using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52f5980f9d4c49cf981bc89650c1cc0b
https://doi.org/10.4173/mic.1996.2.4
https://doi.org/10.4173/mic.1996.2.4
Autor:
Thor I. Fossen, Trygve Lauvdal
Publikováno v:
Scopus-Elsevier
A stable minimum phase transfer function from rudder angle to yaw angle is used to design a globally stable adaptive ship autopilot. 1st-order wave disturbances in yaw are filtered by applying a notch filter. Integral action is introduced by using a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0542a648c145320d99c3b5cade94173f
https://doi.org/10.1016/s1474-6670(17)51680-8
https://doi.org/10.1016/s1474-6670(17)51680-8
Publikováno v:
Scopus-Elsevier
We present a gain scheduling technique for stabilizing integrator chains in the presence of magnitude and rate limitations on the input. The controller was first presented by Lauvdal et al. (1997), where they showed excellent experimental results on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27948ddfda4e3527607f2c6d230ba476
https://doi.org/10.1109/cdc.1997.652491
https://doi.org/10.1109/cdc.1997.652491
Autor:
Thor I. Fossen, Trygve Lauvdal
Publikováno v:
Scopus-Elsevier
We consider linear systems with possibly exponentially unstable eigenvalues and with saturating input. It is shown that for a class of unstable systems there exists a bounded linear stabilizing controller for sets of initial conditions which may be a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09e3d5414e2331b53ba7172ed586ff27
https://doi.org/10.1109/cdc.1997.649680
https://doi.org/10.1109/cdc.1997.649680