The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Dec. 04, 2017
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Ossama Abdelkhalik, Houghton, MI (US);
Shangyan Zou, Houghton, MI (US);
Rush D. Robinett, Iii, Tijeras, NM (US);
Umesh Korde, Hancock, MI (US);
Ossama Abdelkhalik, Houghton, MI (US);
Shangyan Zou, Houghton, MI (US);
Rush D. Robinett, III, Tijeras, NM (US);
David G. Wilson, Tijeras, NM (US);
Giorgio Bacelli, Albuquerque, NM (US);
Ryan Geoffrey Coe, Albuquerque, NM (US);
Umesh Korde, Hancock, MI (US);
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US);
Michigan Technological University, Houghton, MI (US);
South Dakota Board of Regents, Pierre, SD (US);
Abstract
Multi-resonant control of a 3 degree-of-freedom (heave-pitch-surge) wave energy converter enables energy capture that can be in the order of three times the energy capture of a heave-only wave energy converter. The invention uses a time domain feedback control strategy that is optimal based on the criteria of complex conjugate control. The multi-resonant control can also be used to shift the harvested energy from one of the coupled modes to another, enabling the elimination of one of the actuators otherwise required in a 3 degree-of-freedom wave energy converter. This feedback control strategy does not require wave prediction; it only requires the measurement of the buoy position and velocity.