Invention Grant
- Patent Title: Morphing segmented wind turbine and related method
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Application No.: US16719612Application Date: 2019-12-18
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Publication No.: US11466660B2Publication Date: 2022-10-11
- Inventor: Eric Loth , Michael S. Selig , Adam Steele
- Applicant: University of Virginia Patent Foundation , The Board of Trustees of the University of Illinois
- Applicant Address: US VA Charlottesville; US IL Urbana
- Assignee: University of Virginia Patent Foundation,The Board of Trustees of the University of Illinois
- Current Assignee: University of Virginia Patent Foundation,The Board of Trustees of the University of Illinois
- Current Assignee Address: US VA Charlottesville; US IL Urbana
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: F03D1/06
- IPC: F03D1/06

Abstract:
A downwind morphing rotor that exhibits bending loads that will be reduced by aligning the rotor blades with the composite forces. This reduces the net loads on the blades which therefore allow for a reduced blade mass for a given maximum stress. The downwind morphing varies the amount of downstream deflection as a function of wind speed, where the rotor blades are generally fully-aligned to non-azimuthal forces for wind speeds between rated and cut-out conditions, while only the outer segments of the blades are generally aligned between cut-in and rated wind speeds. This alignment for large (MW-scale) rated turbines results in much larger downstream deflections of the blades at high wind speeds as compared to that of a conventional rigid single-piece upwind turbine blade.
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