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research article

An experimental field study of the grounding system response of tall wind turbines to impulse surges

Gazzana, Daniel S.
•
Smorgonskiy, Alexander
•
Mora, Nicolas
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2018
Electric Power Systems Research

In this work, an experimental investigation of the grounding system behavior of tall wind turbines in both time and frequency domains is presented. Two scenarios were considered: in the first one, measurements were carried out on the grounding system embedded in the wind turbine foundation, before assembly of the wind turbine itself; in the second one, the complete wind turbine (tower, nacelle and blades) was included. The study also presents an enhanced signal processing technique for noise cancelation in a harsh electromagnetic environment. In the analysis, the frequency dependence of the grounding impedance was evaluated and a numerical simulation in steady state was performed. The simulation model leads to a satisfactory representation of the studied system. Preliminary results show that the evaluated grounding impedance is not significantly affected by the presence of the complete wind turbine at the evaluated frequencies.

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Type
research article
DOI
10.1016/j.epsr.2018.02.020
Author(s)
Gazzana, Daniel S.
•
Smorgonskiy, Alexander
•
Mora, Nicolas
•
Šunjerga, Antonio
•
Rubinstein, Marcos
•
Rachidi, Farhad
Date Issued

2018

Published in
Electric Power Systems Research
Volume

160

Start page

219

End page

225

Subjects

Grounding impedance

•

In situ measurements

•

Numerical simulation

•

Wind turbine

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-FR  
Available on Infoscience
March 27, 2018
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/145798
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