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US 9,016,012 B1Granted
Wind turbine tower system
AssigneeIowa State University Research Foundation, Inc.
InventorsSivalingam Sritharan, Thomas James Lewin
Life of this patent
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Abstract
A wind turbine tower system is provided which includes a wind turbine tower with a height of at least 80 meters, said wind turbine tower comprised of ultra-high performance concrete and a wind turbine mounted on the wind turbine tower. The wind turbine tower system may include a vertically extending lattice structure formed of a plurality of modular components, wherein each of said plurality of modular components being pre-stressed. The tower may also be formed using UHPC shells.
Claims6
A wind turbine tower system comprising:
- a wind turbine tower with a height of at least 80 meters, the wind turbine tower having a vertically extending lattice structure formed of a plurality of modular components, wherein each of said plurality, of modular components being pre-stressed;
- a wind turbine mounted on the wind turbine tower;
- wherein tile plurality of modular components includes a plurality of vertical columns, each of the plurality of vertical columns comprising concrete and extending from a base of the wind turbine tower to a top of the wind turbine tower, and the plurality of vertical columns arranged to provide a multi-sided polygonal cross-section;
- wherein the plurality of modular components further include a plurality of braces between adjacent columns;
- wherein for each of the columns cross-section area decreases from a base of the wind turbine tower to a top of the wind turbine tower;
- wherein each of the columns comprises a plurality of ducts with tendons running through the ducts to provide post-tensioning and configured to provide staged post-tensioning such that fewer ducts and tendons are present in successively higher stages of the columns.
3 more elements
Dependencies are inferred from the claim text.