Measuring and testing – Fluid flow direction – With velocity determination
Reexamination Certificate
2009-06-15
2011-12-27
Caputo, Lisa (Department: 2855)
Measuring and testing
Fluid flow direction
With velocity determination
C073S170010, C073S170020
Reexamination Certificate
active
08082782
ABSTRACT:
A method of determining an estimate of the de-trended turbulence intensity TI in a proposed site for a wind farm including the steps of measuring the wind speed at a predetermined sampling frequency fsduring a number of time periods pz; calculating in each time interval pzwind speed statistical parameters Vmean, σvand a wind speed trend parameter k in real time for each new wind speed measure xjas a function of the values of said parameters Vmean, σv, k for the prior wind speed measure xj-1and the new wind speed measure xj; storing the parameters Vmean, σv, k obtained at the end of each time interval pz; determining the de-trended turbulence intensity TI in said proposed site using said stored parameters Vmean, σv, k. The invention also refers to an apparatus for acquiring the data needed for the calculation of the de-trended turbulence intensity TI.
REFERENCES:
patent: 6070461 (2000-06-01), Gjessing et al.
patent: 6601447 (2003-08-01), Loucks
patent: 6688169 (2004-02-01), Choe et al.
patent: 6857312 (2005-02-01), Choe et al.
patent: 7284421 (2007-10-01), Martin
patent: 2008/0271524 (2008-11-01), Shapira
Caputo Lisa
Gamesa Innovation & Technology S.L.
Jenkins Jermaine
Ladas & Parry LLP
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