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Tower with adapter section

A technology for towers and sections, applied in the field of wind turbine towers, which can solve the problems of difficulty in building and transporting large wind turbines, imposing restrictions on the length, mass and diameter of tower members, and increasing energy production.

Active Publication Date: 2012-03-14
GENERAL ELECTRIC RENOVABLES ESPANA SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher hub height provided by the larger tower enables the rotor of the wind turbine to exist in regions of higher mean wind speed and this results in increased energy production
An increase in tower height always results in a corresponding increase in tower mass, length and diameter
However, it becomes difficult to construct and transport large wind turbines as local transportation infrastructure (e.g. roads, bridges, vehicles, etc.) often impose limitations on the length, mass and diameter of tower members

Method used

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Embodiment Construction

[0060] Various aspects of the invention will now be described in detail, one or more examples of which are shown in the drawings. Each example is provided by way of explanation of the invention, not meant to limit the invention. For example, features illustrated or described as part of one aspect can be used on or in combination with other aspects to yield yet a further aspect. The present invention is intended to cover such modifications and variations.

[0061] figure 1 A wind turbine is shown, to which aspects of the invention may be advantageously applied. However, it should be understood that the invention is not restricted or limited to wind turbines, but can also be applied to tower structures used in other technical fields. In particular, the various aspects of the invention may also be applied to antenna towers used in broadcasting or mobile communications, or to bridge towers used in bridge construction. Accordingly, although aspects of the invention will be illu...

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Abstract

The invention relates to a tower with an adapter section, and specifically provides the tower (210) which has a foundation (250), at least one concrete tower section (214) located above the foundation (250) and one or more upper tower sections (112). An adapter section (270) is located between the concrete tower section (214) and one of the upper tower sections (112). The adapter section (270) is connected to one of the upper tower sections (112) by a fastening system and to the foundation (250) by a plurality of tensioning cables (330), which are configured to induce a compressive force on the concrete tower section (214). The fastening system and the plurality of tensioning cables (330) are substantially vertically aligned so that tower loads are transmitted from the upper tower sections (112) to the plurality of tensioning cables (330).

Description

technical field [0001] The present invention generally relates to towers. The invention relates in particular to wind turbine towers with adapters between steel sections and concrete sections, but is not limited thereto. Background technique [0002] Recently, wind turbines have gained more attention as an environmentally safe and relatively inexpensive alternative energy source. With this increasing interest, considerable efforts have been made to develop reliable and efficient wind turbines. [0003] Typically, a wind turbine includes a rotor with a plurality of blades. The rotor is mounted to a casing or nacelle positioned on top of a truss or tubular tower. Utility grade wind turbines (ie, wind turbines designed to provide electrical power to a utility grid) can have large rotors (eg, 30 meters in diameter or larger). Blades on these rotors transform wind energy into a rotational torque or force that drives one or more generators, which may be rotationally coupled to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00
CPCE02D27/42E02D27/425E04C5/125E04H12/085E04H12/12E04H12/16Y02E10/728
Inventor B·S·巴格帕利
Owner GENERAL ELECTRIC RENOVABLES ESPANA SL
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