초록 ▼

Disclosed is a tower for a wind power station comprising a machine pod disposed on the tower and a rotor mounted on the machine pod so as to be rotatable about an essentially horizontal axis. Said rotor is provided with at least one blade. The tower is composed of a tubular upper section that is con

Disclosed is a tower for a wind power station comprising a machine pod disposed on the tower and a rotor mounted on the machine pod so as to be rotatable about an essentially horizontal axis. Said rotor is provided with at least one blade. The tower is composed of a tubular upper section that is connected to a lower section which is embodied as a lattice tower in a transition zone. The lattice tower encompasses at least three corner posts. The upper tower section forms at least one sixth of the entire tower. The cross section of the lower tower section below the transition zone is greater than the cross section of the upper tower section while the transition zone is configured such that the cross section of the lower tower section is adjusted to the cross section of the upper tower section so as to optimize power flux.

대표청구항 ▼

The invention claimed is: 1. A tower (40) to support a wind-driven power-plant comprising an equipment nacelle (30) affixed to the tower (40) and a rotor (20) resting on the equipment nacelle in a manner to be rotatable about a substantially horizontal axis, said rotor being fitted with at least on

The invention claimed is: 1. A tower (40) to support a wind-driven power-plant comprising an equipment nacelle (30) affixed to the tower (40) and a rotor (20) resting on the equipment nacelle in a manner to be rotatable about a substantially horizontal axis, said rotor being fitted with at least one rotor blade (22), said tower comprising an upper, tubular tower segment (46) which is connected in a transition zone to a lower tower segment (41) in the form of a lattice tower (42), said lattice tower comprising at least three corner posts (43) wherein the upper tower segment (46) constitutes at least one sixth of the entire tower, and wherein the cross-section of the lower tower segment (41) underneath the transition zone is larger than the cross-section of the upper tower segment (46), and in that the transition zone is designed in a manner that the cross-section of the lower tower segment is matched in a force-optimized manner to the cross-section of the upper tower segment. 2. The wind-driven power-plant tower (40) as claimed in claim 1, wherein the vertical expanse of the transition zone is at least half the upper tower segment's diameter in the transition zone or immediately adjoining it. 3. The wind-driven power-plant tower (40) as claimed in claim 2 wherein the transition zone tapers upward from the cross-section of the lower tower segment (41) as far as the cross-section of the upper tower segment (46). 4. The wind-driven power-plant tower (40) as claimed in claim 1, wherein the transition zone is constituted by a transition unit (50) comprising a lower region (70) connectable to the lower tower segment (41) and an upper region (60) connectable to the upper tower segment (46). 5. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the transition unit's lower region (70) is designed in a manner that its largest horizontal expanse is 50 %-larger than its horizontal expanse in the upper region (60). 6. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the tower (40) is designed in a manner that the transition unit (50) is configured underneath a horizontal plane (25) defined by a blade tip (23) when the rotor blade (22) is down in the vertical. 7. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the upper region (60) of the transition unit (50) is designed in a manner that the transition unit (50) is connected by a detachable connection means (61) to the upper tower segment (46). 8. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the lower region (70) of the transition unit (50) is designed in a manner that the transition unit (50) can be connected with each corner post (43) of the lattice tower (42) by means of a detachable connection means (71). 9. The wind-driven power-plant tower (40) as claimed in claim 7, wherein the detachable connection means (61) between the upper region (60) of the transition unit (50) and the upper tower segment (46) comprises a two-row screw flange (64) mounted on the transition unit (50) as the connection site and a T-flange (62) mounted on the upper tower segment (46). 10. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the lower region (70) of the transition unit (50) comprises connection sites (72) for plate junctions (71) to the corner posts (43) of the lattice tower (42). 11. The wind-driven power-plant tower (40) as claimed in claim 4, wherein a built height of the transition unit (50) is limited by the overpass height beneath bridges and is between 4 and 5.5 m. 12. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the transition unit (50) consists of at least two sub-units (57, 58) preferably detachably connected to each other at a connection site 56. 13. The wind-driven power-plant tower (40) as claimed in claim 12, wherein the transition unit (50) comprises at least one vertical partition plane. 14. The wind-driven power-plant (40) as claimed in claim 12, wherein the transition unit (50) comprises at least one horizontal partition plane. 15. The wind-driven power-plant tower (40) as claimed in claim 12, wherein the transition unit (50) or a sub-unit (57, 58) of the transition unit (50) is designed in a manner that, by means of adapter elements which are mounted on the extant connection sites (56, 64, 72) or on connection sites of their own for that purpose, said unit or sub-unit can be transported on a low-loader trailer. 16. The wind-driven power-plant tower (40) as claimed in claim 12, wherein the transition unit (50) or the sub-units (57, 58) of the transition unit (50) is/are designed in a manner that the transportation of several transition unit(s) (50) or transition sub-units (57, 58) connected directly or indirectly to each other can be carried out by a low-loader trailer. 17. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the transition unit (50) comprises a wall (52) and is made in the shell mode of construction. 18. The wind-driven power-plant tower (40) as claimed in claim 10, wherein the basic shape of the transition unit (50) is substantially a markedly conical tube, the mean slant (γ) of the conical tube (52) relative to the center axis being larger than that (α) of a wall (48) of the lower region of a tubular tower (47) and/or than the slant (β) of the upper region of the lattice tower corner posts (43). 19. The wind-driven power-plant tower (40) as claimed in claim 18, wherein the mean slant (γ) of the wall (52) of the transition unit (50) relative to the center axis is more than 25째. 20. The wind-driven power-plant tower (40) claimed in claim 4, wherein the transition unit (50) smoothly merges, from a substantially circular cross-section in the upper region (60), into a polygonal, preferably triangular or tetragonal cross-section in the lower region (70). 21. The wind-driven power-plant tower (40) as claimed in claim 18, wherein the wall (52) of the transition unit (50) is fitted with at least one clearance (53). 22. The wind-driven power-plant tower (40) as claimed in claim 21, wherein the minimum of one clearance (53) is archway-shaped and in that this archway-shaped clearance (53) runs from corner post (43) to corner post (43). 23. The wind-driven power-plant tower (40) as claimed in claim 22, wherein the minimum of one archway-shaped clearance is fitted with ribbed or archway-like rigidifying means (55). 24. The wind-driven power-plant (40) as claimed in claim 4, wherein horizontal supports (45) are configured in the lower region (70) of the transition unit (50) between the corner posts (43) of the lattice tower (42) and connect to each other the adjacent corner posts (43) and/or the (diagonally) opposite corner posts (43). 25. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the lattice tower (42) comprises at least four corner posts (43) and the transition unit (50) is fitted with ribs bracing the lines of connection of mutually opposite corner posts (43) (diagonals). 26. The wind-driven power-plant as claimed in claim 4, wherein the transition unit (50) is a east sub-assembly. 27. The wind-driven power-plant tower (40) as claimed in claim 18, wherein the wall (52) of the transition unit (50) curves convexly when seen in vertical cross-section. 28. The wind-driven power-plant tower (40) as claimed in claim 27, wherein the slant of the connection sites (72) in the lower region (70) of the transition unit (50) corresponds to the slant of the upper region of the corner posts (43) of the lattice tower (42). 29. The wind-driven power-plant tower (40) as claimed in claim 4, wherein the transition unit (50) is a welded sub-assembly. 30. The wind-driven power-plant tower (40) as claimed in claim 1, wherein the tower segment (41) in the form of a lattice tower (42) comprises several superposed sections and that one section each time comprises the corner posts (43) and at least one strut means (44) runs diagonally between the corner posts. 31. The wind-driven power-plant tower (40) as claimed in claim 30, wherein the slope of the diagonal strut means is identical in all sections. 32. The wind-driven power-plant tower (40) as claimed in claim 1, wherein cables connecting said power-plant to an electrical grid run inside the corner posts (43) designed as hollow construction shapes. 33. The wind-driven power-plant tower as claimed in claim 32, wherein cable-protecting pipes receiving the cables run inside the corner posts (43). 34. The wind-driven power-plant tower as claimed in claim 1, in the form of an upper, substantially tubular tower segment and of various lower tower segments in the form of a lattice tower, wherein the total tower height is variable by selecting different lattice tower heights.