CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Nonlinear speed and yaw control for wind turbine powered vessels

Nonlinear speed and yaw control

Alexander Stotsky (Institutionen för energi och miljö, Elteknik)
Proceedings of the Institution of mechanical engineers. Part I, journal of systems and control engineering (0959-6518). Vol. 230 (2016), 3, p. 255-265.
[Artikel, refereegranskad vetenskaplig]

The application of conventional wind turbines on board a vessel creates a number of new challenges for turbine control systems. Thrust force is used in marine applications as an additional control variable for propulsion of the vessel. Variability of the wind speed and wind direction, together with the yaw rate and range constraints, impose strong requirements on the turbine control system. A new projection algorithm that projects the turbine thrust force on the heading direction of vessel is proposed in this paper for controlling propulsion. Variations in the wind direction and wind speed are counteracted via turbine yaw angle, making the turbine thrust force always aligned with the heading direction of the vessel. The conventional Kv2 speed controller is modified for varying yaw offset and a combined algorithm for simultaneous control of the turbine speed and thrust force is proposed. Stability of the Kw^2 speed controller for varying yaw offset is proved via the Lyapunov method. The controller also takes into account the constraints on the yaw rate and minimizes the turbine gyroscopic effects via a proper choice of the virtual upper bound of the input voltage of the yaw motor. All of the results are illustrated by simulations using measurement data acquired from the Hönö turbine.

Nyckelord: Wind turbine on vessel, thrust force as propulsion, Lyapunov stability of Kw^2 speed controller with varying yaw offset, projection algorithm, nonlinear yaw control with bounded input, minimization of turbine gyroscopic effects



Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2016-11-18.
CPL Pubid: 245369

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik

Ämnesområden

Energi
Reglerteknik

Chalmers infrastruktur