US 11,668,276 B2
Electrical connection system for a wind turbine blade, wind turbine and related method
Fernando García Ayerra, Pamplona (ES); Olimpio Guerrero Buitrago, Navarra (ES); Joan Pau Guilera de Gispert, Sarriguren (ES); and Victor March Nomen, Les Fonts (ES)
Assigned to SIEMENS GAMESA RENEWABLE ENERGY INNOVATION & TECHNOLOGY S.L.
Filed by Siemens Gamesa Renewable Energy Innovation & Technology S.L., Sarriguren (ES)
Filed on Jun. 10, 2020, as Appl. No. 16/897,365.
Claims priority of application No. 19380012 (EP), filed on Jun. 26, 2019.
Prior Publication US 2020/0408190 A1, Dec. 31, 2020
Int. Cl. F03D 1/06 (2006.01); B29C 70/52 (2006.01); B29C 70/68 (2006.01); F03D 80/30 (2016.01); B29K 105/12 (2006.01); B29K 307/04 (2006.01); B29L 31/08 (2006.01); B29L 31/36 (2006.01)
CPC F03D 1/0675 (2013.01) [B29C 70/52 (2013.01); B29C 70/685 (2013.01); F03D 80/30 (2016.05); B29K 2105/12 (2013.01); B29K 2307/04 (2013.01); B29L 2031/085 (2013.01); B29L 2031/36 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrical connection system for a wind turbine blade which comprises:
at least one set of carbon pultruded plates comprising at least, a first pultruded plate, a second pultruded plate and a third pultruded plate, the second pultruded plate being disposed above the first pultruded plate and the third pultruded plate being disposed above the second pultruded plate, wherein each one of the first, the second and the third pultruded plates comprises at least one electrically conductive region, wherein the first, the second and the third pultruded plates define a longitudinal direction of the wind turbine blade, wherein at least one of the pultruded plates comprises a central peel ply region and two distal regions adjacent to the central peel ply region, wherein the two distal regions are electrically conductive regions, and wherein the central peel ply region is a non-conductive region;
at least one first inter-plate conductive sheet disposed between the first pultruded plate and the second pultruded plate;
at least one second inter-plate conductive sheet disposed between the second pultruded plate and the third pultruded plate;
wherein the third pultruded plate is partially disposed above the second pultruded plate and comprises at least one end followed by an end area in the longitudinal direction of the wind turbine blade; and
wherein the at least one first inter-plate conductive sheet is disposed in contact with the at least one electrically conductive region of the first pultruded plate and the at least one second inter-plate conductive sheet is disposed in contact with the at least one electrically conductive region of the second pultruded plate and the third pultruded plate in areas corresponding, in a first transversal direction of the wind turbine blade being perpendicular to the longitudinal direction, to the end area of the third pultruded plate such that an electrical connection between the first pultruded plate, the second pultruded plate, and the third pultruded plate is established.