Month: July 2020
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Lift me up: the braced foundation
The braced foundation is a partially precast foundation that lift the wind turbine some additional meters above the ground. Developed and patented by Esteyco (a Spanish engineering firm) is a technical solution validated, certified and used in several wind farms worldwide. This solution increase the hub height up to 5 meters, which usually results in…
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Non linear finite element design on wind turbine foundations
The design of wind turbine foundations is currently based on the plate theory. “Plates” are plane structural element and the theory (or “theories” – there are at least two currently used) calculate stress and deformation when the structure is loaded. During the analysis several difficulties emerges in satisfying equilibrium, stress-strain relations, compatibility of strains and…
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Medium voltage power cables in wind farms: an introduction
This post is an extension of the previous short article I wrote some years ago on the characteristics of wind farms medium voltage system. I wrote it with the help of my friend and colleague Kamran, who spent more than an hour answering my questions on the subject. Thank you Kamran! The medium voltage network…