An assessment of using variable blade pitch for moored ocean current turbine flight control
Abstract
This study 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.
- Authors:
-
- Florida Atlantic University, Boca Raton, FL (United States)
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- University of New Orleans, LA (United States)
- Publication Date:
- Research Org.:
- Florida Atlantic Univ., Boca Raton, FL (United States)
- Sponsoring Org.:
- USDOE; National Science Foundation (NSF)
- OSTI Identifier:
- 1986594
- Alternate Identifier(s):
- OSTI ID: 1341141
- Grant/Contract Number:
- EE0004200; ECCS-1308168
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Marine Energy
- Additional Journal Information:
- Journal Volume: 13; Journal ID: ISSN 2214-1669
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 16 TIDAL AND WAVE POWER; Ocean current turbine; Ocean current energy; Marine renewable energy; In-stream hydrokinetic; Individual blade pitch control; Moored turbine control
Citation Formats
VanZwieten, James H., Pyakurel, Parakram, Ngo, Tri, Sultan, Cornel, and Xiros, Nikolaos I. An assessment of using variable blade pitch for moored ocean current turbine flight control. United States: N. p., 2016.
Web. doi:10.1016/j.ijome.2016.01.002.
VanZwieten, James H., Pyakurel, Parakram, Ngo, Tri, Sultan, Cornel, & Xiros, Nikolaos I. An assessment of using variable blade pitch for moored ocean current turbine flight control. United States. https://doi.org/10.1016/j.ijome.2016.01.002
VanZwieten, James H., Pyakurel, Parakram, Ngo, Tri, Sultan, Cornel, and Xiros, Nikolaos I. Thu .
"An assessment of using variable blade pitch for moored ocean current turbine flight control". United States. https://doi.org/10.1016/j.ijome.2016.01.002. https://www.osti.gov/servlets/purl/1986594.
@article{osti_1986594,
title = {An assessment of using variable blade pitch for moored ocean current turbine flight control},
author = {VanZwieten, James H. and Pyakurel, Parakram and Ngo, Tri and Sultan, Cornel and Xiros, Nikolaos I.},
abstractNote = {This study 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.},
doi = {10.1016/j.ijome.2016.01.002},
journal = {International Journal of Marine Energy},
number = ,
volume = 13,
place = {United States},
year = {Thu Jan 21 00:00:00 EST 2016},
month = {Thu Jan 21 00:00:00 EST 2016}
}
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