ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,471, issued on Nov. 25, was assigned to VESTAS WIND SYSTEMS A/S (Aarhus N, Denmark).
"Method for reducing noise from wind turbine gearbox vibrations" was invented by Peter Mongeau (Center Conway, N.H.), Kent Tange (Ry, Denmark) and Nalliboyana Dharmaraju (Dortmund, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling operation of a generator for a wind turbine is disclosed. At least one amplitude of a harmonic in the gearbox vibrations is determined. A torque modulating signal for the generator is generated. A phase angle and the amplitude are adjusted during operation of the generator, until a minimum in amplitude of a re...