TY - JOUR
TI - An assessment of using variable blade pitch for moored ocean current turbine flight control
AU - VanZwieten, J
AU - Pyakurel, P
AU - Ngo, T
AU - Sultan, C
AU - Xiros, N
T2 - International Journal of Marine Energy
AB - This paper investigates the possibility of using active individual blade pitch control for positioning moored ocean current turbines within an array. Using a numerical simulation of a representative ocean current turbine it is shown that harmonic blade oscillations with amplitudes of 1.5° can be used to displace an ocean current turbine laterally by a distance equal to one rotor diameter, when the mooring cable length is approximately 30 times the diameter of the rotor blade. For current flow directions that would result in a downstream turbine operating in the wake of an upstream system at a distance of 10 diameters, this technique could be used to reduce the power loss of the downstream system from about 50% (caused by the reduced flow speed available in the turbine wake) to the 1.2% power loss associated with the suggested control approach.
DA - 2016/04//
PY - 2016
PB - Elsevier
VL - 13
SP - 16
EP - 26
UR - https://www.sciencedirect.com/science/article/pii/S2214166916000035
DO - 10.1016/j.ijome.2016.01.002
LA - English
KW - Current
KW - Ocean Current
KW - Modeling
KW - Array Effects
KW - Control
KW - Mooring
KW - Performance
ER -