Intelligent dragline and wind power generation hightower adopting same

Abstract

The invention discloses an intelligent dragline and a wind power generation hightower adopting the intelligent dragline. The intelligent dragline comprises a top anchor ring, a middle anchor ring, a pulley, SMA (Surface Mounted Assembly) tendons and a prestress cable, wherein one end of the prestress cable is connected with the top anchor ring, and the other end of the prestress cable is fixed atthe bottom of a device for installing the intelligent dragline; the middle anchor ring and the pulley which are installed in sequence at intervals penetrate through the middle of the prestress cable;and the SMA tendons penetrate through the prestress cable between the top anchor ring and the middle anchor ring as well as between the middle anchor ring and the pulley. When the intelligent dragline is installed in a wind power generation tower, the top anchor ring of the intelligent dragline is fixed at the top of the tower, the pulley is fixed on the wall of the tower, one end of the prestress cable is connected with the top anchor ring, and the other end of the prestress cable is fixed in a foundation. The intelligent dragline can reduce and control vibration in the horizontal direction,and can overcome the defects that the existing wind power generation hightower system has poor vibration-proof performance, and is easy to be damaged by natural factors such as strong wind, strong wave and the like.

Description

technical field [0001] The invention belongs to the field of wind power generation, and relates to an intelligent cable and a high tower for wind power generation using the cable. Background technique [0002] The wind power tower system is a structure that realizes wind power generation. It is mainly composed of a foundation, a cylindrical tower, and a nose (consisting of a nacelle, an internal structure, a hub, and blades). The nose is supported by a cylindrical tower. The tower is placed in a separate supporting pile (or other types of foundations, this type is only for illustration), and the connection between the machine head and the cylindrical tower, and the cylindrical tower and the separate supporting pile are connected by two-way bolts; The tower form has the advantages of simple structure and convenient manufacturing and installation, so it has been widely used in the field of wind power generation. The side-movement stiffness of the frame and monopiles is genera...

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Problems solved by technology

[0002] The high tower system of wind power generation is a structure for realizing wind power generation. It is mainly composed of a foundation, a cylindrical tower, and a machine head (composed of a cabin and internal structure, hubs, and blades). The machine head is supported by a cylindrical tower. The tower is placed in a separate support pile (or other types of foundations, this type is only for illustration), and the connection between the machine head and the cylindrical tower, and the connection between the cylindrical tower and the separate support pile are all connected by two-way bolts; due to this high The tower form has the advantages of simple structure, convenient manufacture and installation, so it has been widely used in the field of wind power generation, but the load situation of this high tower form is very complicated, and its load is mainly borne by the cylindrical tower and single pile, while the tower The anti-sway stiffness of the frame and the single pile is generally small, so under the action of strong wind and sea waves, the top of such a high tower often has a large horizontal displacement and acceleration, which will not only affect the normal operation of the wind turbine, but also reduce the Reliability of wind power tower systems, which can also lead to serious damage to fixed connection structures

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