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Aeolian vibrations: wind energy input evaluated from measurements on an energized transmission line

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2 Author(s)
M. Kraus ; Inst. fuer Mech., Darmstadt, Germany ; P. Hagedorn

A brief review is given of the energy balance method used in the computation of the amplitudes of aeolian vibrations in conductors of overhead transmission lines. It is pointed out that the wind power input obtained from wind tunnel experiments should be verified for an actual line. Field tests carried out in a completely automated test station are described. From these measurements the wind power input in an actual transmission line is estimated. A comparison with results from wind tunnel data is carried out, corroborating the method now being used for the calculation of aeolian vibrations in transmission lines. In addition, the field tests showed that the wind power input strongly depends on the turbulence level and the component of the wind velocity parallel to the cable

Published in:

IEEE Transactions on Power Delivery  (Volume:6 ,  Issue: 3 )