Title :
Antenna model of wind turbine struck by lightning
Author :
Cavka, Damir ; Poljak, Dragan ; Goic, Ranko
Author_Institution :
Dept. of Electron., Univ. of Split, Split, Croatia
Abstract :
The paper deals with an analysis of direct lightning strike to the wind turbine using thin wire antenna theory. Wind turbine is represented by a simple wire structure, while the lightning channel is represented by an equivalent lossy vertical wire attached to the wind turbine. The entire structure is energized by an ideal voltage source at the junction point. The analysis is based on the solution of the set of Pocklington integro-differential equations for arbitrary wires above the ground in the frequency domain. The corresponding transient response is obtained by means of Inverse Fourier transform. The set of Pocklington integro-differential equations is solved by the Galerkin-Bubnov Indirect Boundary Element Method.
Keywords :
Fourier transforms; boundary-elements methods; integro-differential equations; inverse transforms; lightning protection; power generation protection; transient response; wind turbines; wire antennas; Galerkin-Bubnov indirect boundary element method; Pocklington integro-differential equations; antenna model; arbitrary wires; direct lightning strike analysis; equivalent lossy vertical wire; frequency-domain analysis; inverse Fourier transform; junction point; lightning channel; thin wire antenna theory; transient response; voltage source; wind turbine struck; wire structure; Blades; Equations; Lightning; Mathematical model; Poles and towers; Wind turbines; Wires; GB-IBEM; Wind turbine; antenna model; lightning strike; real ground; return stroke;
Conference_Titel :
Electromagnetic Compatibility (EMC EUROPE), 2012 International Symposium on
Conference_Location :
Rome
Print_ISBN :
978-1-4673-0718-5
DOI :
10.1109/EMCEurope.2012.6396862
