Design and field testing of a source based protection relay for wind farms

1999 ◽  
Vol 14 (3) ◽  
pp. 818-823 ◽  
Author(s):  
S.J. Haslam ◽  
P.A. Crossley ◽  
N. Jenkins
Keyword(s):  
Wind Farms ◽  
Field Testing ◽  
Protection Relay

Repurposing of Offshore Oil and Gas Cables for Renewable Generation: Feasibility and Conceptual Qualification

2021 ◽  
Author(s):  
Ramy Magdy A. Mahmoud ◽  
Hazem Fayad ◽  
Paul E. Dodds
Keyword(s):  
Wind Farm ◽  
Oil And Gas ◽  
Capital Expenditure ◽  
Wind Farms ◽  
Cost Effective ◽  
Field Testing ◽  
Capital Costs ◽  
The North ◽  
Oil And Gas Fields ◽  
Gas Fields

Abstract Wind farms are expected to be deployed in the North Sea in increasing numbers and at ever greater distances from land, over the coming decades. Many nearby oil and gas fields have reached or are near the end of their lifespans, and their operators are eager to explore innovative ways to reduce decommissioning costs. One possibility would be to repurpose some of their infrastructures for use by wind farms, which would both delay decommissioning and reduce the wind farm capital costs. This paper investigates the potential for repurposing existing submarine power cores in decommissioned oil and gas fields as transmission cables for offshore renewables. Offshore power cables generally have longer lifetimes than are needed to deplete hydrocarbon reservoirs. Cable transmission capacity could be too low to provide the main connection to wind farms, but there is scope to increase capacity or use cables as auxiliary connections. A qualification methodology is proposed to assess whether existing cables might be usefully repurposed. Repurposing cables has an impact on renewable project capital expenditure (CAPEX) and levelised cost of energy (LCOE), it also positively affects decommissioning cost and the environment. The qualification methodology provides a cost-effective initial appraisal prior to field testing.

Evaluation of a new type of protection relay for wind farms

1998 ◽  
Author(s):  
P. Crossley ◽  
S. Haslam ◽  
N. Jenkins
Keyword(s):  
Wind Farms ◽  
Protection Relay ◽  
New Type

Field testing the AMIT Job Performance Aid: Methods, results, and implications for the Air Force maintenance community

2007 ◽  
Author(s):  
David E. Kancler ◽  
Christopher C. Curtis ◽  
Darryl S. Stimson ◽  
Johnnie Jernigan
Keyword(s):  
Job Performance ◽  
Air Force ◽  
Field Testing ◽  
Force Maintenance

Leadership Effectiveness Assessment Profile (LEAP): Officer Instrument Field Testing and Refinement

1992 ◽  
Author(s):  
Victor H. Appel ◽  
Carol Murray Quintana ◽  
Richard W. Cole ◽  
Mark D. Shermis ◽  
Paul D. Grubb ◽  
...  
Keyword(s):  
Leadership Effectiveness ◽  
Field Testing ◽  
Effectiveness Assessment

Sexuality-related conditions: A multistakeholder approach to explore feasibility of field-testing ICD-11 revisions in developing countries.

2016 ◽  
Vol 5 (3) ◽  
pp. 184-191 ◽  
Author(s):  
Megan M. Campbell ◽  
Rebeca Robles ◽  
Denise L. Vieira ◽  
Brigitte Khoury ◽  
Saria Daouk ◽  
...  
Keyword(s):  
Developing Countries ◽  
Field Testing

Selection of a leading edge noise prediction method for PNoise

2018 ◽  
pp. 214-223
Author(s):  
AM Faria ◽  
MM Pimenta ◽  
JY Saab Jr. ◽  
S Rodriguez
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Prediction Method ◽  
Leading Edge ◽  
Wind Farms ◽  
Broadband Noise ◽  
Turbulence Energy ◽  
Noise Prediction ◽  
Migration Routes ◽  
Turbulent Inflow

Wind energy expansion is worldwide followed by various limitations, i.e. land availability, the NIMBY (not in my backyard) attitude, interference on birds migration routes and so on. This undeniable expansion is pushing wind farms near populated areas throughout the years, where noise regulation is more stringent. That demands solutions for the wind turbine (WT) industry, in order to produce quieter WT units. Focusing in the subject of airfoil noise prediction, it can help the assessment and design of quieter wind turbine blades. Considering the airfoil noise as a composition of many sound sources, and in light of the fact that the main noise production mechanisms are the airfoil self-noise and the turbulent inflow (TI) noise, this work is concentrated on the latter. TI noise is classified as an interaction noise, produced by the turbulent inflow, incident on the airfoil leading edge (LE). Theoretical and semi-empirical methods for the TI noise prediction are already available, based on Amiet’s broadband noise theory. Analysis of many TI noise prediction methods is provided by this work in the literature review, as well as the turbulence energy spectrum modeling. This is then followed by comparison of the most reliable TI noise methodologies, qualitatively and quantitatively, with the error estimation, compared to the Ffowcs Williams-Hawkings solution for computational aeroacoustics. Basis for integration of airfoil inflow noise prediction into a wind turbine noise prediction code is the final goal of this work.

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