DTU Studieprojekt - Control Optimisation of a Hydrofoil Current Turbine

Control Optimisation of a Hydrofoil Current Turbine

Udbyder
Vejleder
Sted
København og omegn
DTU Mekanik and Millfield Technology ApS are developing a marine current turbine to extract energy from water flows in rivers and estuaries. The machine consists of a submerged vertical hydrofoil connected to one end of a cantilevered arm. The other end of the arm is pivoted, allowing the entire assembly to yaw about a fixed point on a bridge or pier. Close to the pivot, a hydraulic system exerts a force that resists the arm's motion, thereby extracting power for conversion to electricity. By carefully controlling the pitch angle of the hydrofoil and the hydraulic force resisting the motion, the arm assembly can be made to oscillate back and forth along a circular arc. The advantages of this system compared to conventional rotating turbines include a larger swept area, little equipment below the waterline, and easier operation in shallow water.
The aim of this project is to develop a robust control system for this current turbine. Work undertaken by DTU Mekanik has identified the optimum power-absorption configuration for a constant-velocity hydrofoil. However, work is required to identify a control strategy for the accelerating stages of operation. These include startup and shutdown of the machine, and the reversals of direction that are required as the hydrofoil approaches the sides of the river. The developed strategy must control the wing pitch angle and power-take-off force so that power absorption is maximised whilst constraining structural forces and the maximum velocity of the hydrofoil. The scope of the project may be expanded to include a more general study of control strategies for extracting power from flowing fluid streams.

I samarbejde med
Michael Mølhede Loving, Millfield Technology ApS, mm@millfileld.dk

Forudsætninger
State-feedback control, state-space models, optimal control, optimisation

Emneord

• Konstruktion og mekanik
• Elektroteknologi
• Energi
• Forbrændingsmotorer
• Kyster og havne
• Maskinkonstruktion
• Skibe og off-shore-konstruktioner
• Antenner
• Elektromagnetisme
• Elektronik
• Lyd
• Mikrobølgeteknologi
• Robotteknik og automation
• Energiproduktion
• Energisystemer
• Kraftværker
• Hardware og komponenter
• Telekommunikation
• Høreapparater
• Medicinske apparater og systemer
• Rumteknologi og instrumenter
• Satellitter

• Control
• Energyharvesting
• optimisation
• WaterTurbine

Navn
Dimitrios Papageorgiou

Stilling
Adjunkt

Mail
dimpa@elektro.dtu.dk

Vejleder-info
Kandidatuddannelsen i Elektroteknologi
Vejleder
Dimitrios Papageorgiou

Medvejledere
Mogens Blanke, Harry B. Bingham, Robert Read

ECTS-point
30 - 35

Type
Kandidatspeciale

Skal have taget
31310

Kandidatuddannelsen i Konstruktion og Mekanik
Vejleder
Dimitrios Papageorgiou

Medvejledere
Mogens Blanke, Harry B. Bingham, Robert Read

ECTS-point
30 - 35

Type
Kandidatspeciale

Skal have taget
31310