公开(公告)号：US20200182224A1

公开(公告)日：2020-06-11

申请号：US16331100

申请日：2017-09-06

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mranal GUPTA ,  Janne-Pekka YRJÖNEN ,  Jan JOHANSEN ,  Niels Christian M. NIELSEN ,  Edgar ANAHUA ,  Kaj Dam MADSEN ,  Jens DEMTRÖDER

IPC: F03D17/00 ,  F03D7/02

Abstract: A method 400 of predicting tonal noise produced by a wind turbine is disclosed. The method comprises acquiring 410 a first set of vibration data, the first set of vibration data being from a plurality of vibration sensors positioned at different locations about a wind turbine drivetrain when the wind turbine drivetrain is undergoing testing in a test rig; acquiring 420 a second set of vibration data, the second set of vibration data being from a plurality of vibration sensors positioned at different locations about the same or a similar wind turbine drivetrain when located in a wind turbine; acquiring 430 noise data including tonal noise produced by the wind turbine; identifying 440 a vibration sensor of interest using vibration data of the second set of vibration data and the noise data; determining 450, for the identified sensor, a first relationship between vibration data of the first set of vibration data and the second set of vibration data; and determining 460, for the identified vibration sensors, a second relationship between the first set of vibration data and tonal noise produced by a wind turbine based on the first relationship.

公开(公告)号：US20200332767A1

公开(公告)日：2020-10-22

申请号：US16959132

申请日：2018-12-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mranal GUPTA ,  Kaj Dam MADSEN ,  Erlk SLOTH

IPC: F03D7/02 ,  F03D7/04

Abstract: A method for of controlling audible levels of tonal noise produced by a wind power plant comprising a plurality of wind turbines is provided. The method comprises identifying a wind turbine as contributing to a level of tonal noise that is audible at a noise reception point; and adjusting one or more operating parameters of a wind turbine other than the identified wind turbine in order to reduce a level of tonal noise produced by the identified wind turbine that is audible at the noise reception point, and thereby reduce the level of tonal noise that is audible at the noise reception point. A controller configured to perform the method, a wind turbine and wind power plant comprising the controller, and a computer program which when executed by a computing device cause the computing device to perform the method, are also provided.

公开(公告)号：US20230400011A1

公开(公告)日：2023-12-14

申请号：US18250954

申请日：2021-10-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Nicolaj Winther JOHANSEN ,  Mranal GUPTA ,  Kaj Dam MADSEN ,  Brian Ank MERTZ ,  Claus Thy HENNINGSEN

IPC: F03D7/02

CPC classification number: F03D7/0296 ,  F05B2260/96 ,  F05B2270/504 ,  F05B2270/402

Abstract: The invention provides a method of reducing noise emissions of a wind turbine. The method includes receiving data indicative of wind conditions in the vicinity of the wind turbine, and determining an operational set point signal in accordance with a desired operation of the wind turbine, the operational set point signal being determined based on the received data. The method includes applying a perturbation signal to the operational set point signal to obtain a modified operational set point signal, and controlling operation of the wind turbine using the modified operational set point signal to reduce noise emissions of the wind turbine. The perturbation signal is applied such that the modified operational set point signal has greater temporal variation than the operational set point signal.