Patents Assigned to Siemens Gamesa Renewable Energy A/S
  • Fixation of fibre fabric layers in moulds for wind turbine blades
    Patent number: 11090915
    Abstract: A method of manufacturing a rotor blade for a wind turbine is provided. The method includes steps of providing a mould defining an outer shape of a the rotor blade or a portion thereof; arranging a plurality of fibre fabric layers on a surface of the mould having at least one inclined surface portion; and laminating the fibre fabrics layers together by infusing a liquid resin into the mould. A step of interlocking the plurality of fibre fabric layers using at least one mechanical interlocking element prior to laminating the fibre fabric layers together is carried out.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: August 17, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Erik Grove-Nielsen
  • Flow control for an actuator
    Patent number: 11092173
    Abstract: A flow control circuit for an actuator is provided. The actuator includes a first chamber and a second chamber, wherein the first chamber experiences a volume change that is larger than a volume change experienced by the second chamber upon actuation of the actuator. The flow control circuit includes a first port configured to be connected to the first chamber, a second port configured to be connected to the second chamber, and a flow control valve assembly including one or more valves configured to provide a flow of pressurized fluid from a pressurized fluid source to one of the first and second ports along a fluid supply path and further configured to provide a flow of fluid from the other of the first and second ports to a fluid sink along a fluid return path. The flow control circuit further includes a fluid bypass path comprising a bypass valve.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 17, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Mikkel Aggersbjerg Kristensen
  • Cooling arrangement
    Patent number: 11073136
    Abstract: Provided a cooling arrangement for a generator including a stationary armature with an interior cavity bounded by an armature front plate, an armature back plate and a main shaft, which cooling arrangement includes a partition arranged to separate the interior cavity into an outer annular region adjacent to the armature and an inner annular region surrounding the main shaft, and wherein the partition includes a number of heat exchanger units; and a fan assembly arranged in the interior cavity to force hot air from the outer annular region through the heat exchanger units of the partition into the inner annular region and to expel cooled air from the inner annular region of the interior cavity. A wind turbine including such a cooling arrangement for cooling a generator and a method of cooling a generator is also provided.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: July 27, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Giovanni Airoldi
  • Lightning receptor for a rotor blade of a wind turbine
    Patent number: 11060508
    Abstract: Provided is a rotor blade of a wind turbine, the rotor blade including a lightning protection system with at least one lightning receptor, wherein the lightning receptor includes a receptor part which protrudes from the surface of the rotor blade. Furthermore, the section of the receptor part with the maximum lateral extension is spaced apart from the surface of the rotor blade. Additionally, a lightning receptor for such a rotor blade and to a wind turbine for generating electricity comprising at least one such rotor blade, is also provided.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: July 13, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Flemming Dahl, Yannick Cao van Truong
  • Wind turbine cooling arrangement
    Patent number: 11060510
    Abstract: Provided is a wind turbine cooling arrangement, including a first cooling circuit arranged to transport a fluid cooling medium to absorb heat from a first component group; and a second cooling circuit arranged to transport a fluid cooling medium to absorb heat from a second component group, which second cooling circuit includes a primary heat exchanger arranged to dissipate heat from the cooling medium of the second cooling circuit; and a secondary heat exchanger arranged to heat the cooling medium of the first cooling circuit. A wind turbine including a cooling arrangement, and a method of cooling components of a wind turbine is also provided.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: July 13, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Giovanni Airoldi, Thorkil Munk-Hansen
  • Sliding bearing pad support
    Patent number: 11041529
    Abstract: A support of a bearing pad of a sliding bearing is provided. A bearing pad support connection is disclosed, including a bearing pad and a bearing pad support structure whereby the bearing pad is connected to a support structure by a ball joint. The bearing pad includes a ball head, and the support structure includes a ball socket. The bearing pad and the support structure are connected via a spring connection apply a force between the bearing pad and the support structure to force the ball head to rest movable in the ball socket.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: June 22, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Niels Karl Frydendal, Kim Thomsen, Morten Thorhauge
  • Generator for a wind turbine
    Patent number: 11028834
    Abstract: A generator for a wind turbine, a direct drive wind turbine, and a method for manufacturing a generator for a wind turbine is provided. The generator includes a rotor, and a stator, wherein the stator includes a first radial side and a second radial side which is opposite of the first radial side, and wherein the rotor is arranged adjacent to the first radial side. The generator further includes a flow distribution element which is arranged adjacent to the second radial side such that a circumferential flow channel is formed between the flow distribution element and the second radial side.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 8, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Peter Hessellund Soerensen
  • Method of constructing a tower
    Patent number: 11021887
    Abstract: A method of constructing a tower is provided, the method including the steps of providing an elevation mechanism including a dynamic engaging mechanism realized to engage with a tower surface, arranging a 3D printing device on the elevation means, actuating the dynamic engaging mechanism to effect a vertical elevation of the elevation mechanism, actuating the 3D printing device to deposit an essentially horizontal material layer including at least a tower body region, and repeating the steps to obtain a tower structure. A tower constructed using such a method, and a 3D tower printing apparatus, is also provided.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: June 1, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Henrik Keller, Rainer Kuth, Philip Mewes
  • Method for detecting an incipient damage in a bearing
    Patent number: 11010568
    Abstract: Provided is a method for detecting an incipient damage in a bearing including receiving from a plurality of sensors of the bearing a plurality of signals corresponding to a plurality of bursts, each burst being emitted each time an indentation is met during the rotation of the bearing at a contact point between a roller of the bearing and a race of the bearing, analyzing the signals for locating on the bearing the indentations corresponding to the bursts, generating a map of points on a digital model of the bearing corresponding to the indentations on the bearing, the map of points being registered and updated throughout at least an interval of the lifetime of the bearing, identifying an incipient damage in the bearing each time the distribution of the points in the map is not random, and generating an incipient damage warning message.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 18, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Mikkel Wilki Thygesen
  • Canopy structure and a wind turbine
    Patent number: 11009008
    Abstract: Provided is a canopy structure for a nacelle of a wind turbine, including at least one side and a plurality of standard panels which all have the same length and the same width, wherein the at least one side is at least partly formed from the plurality of standard panels, and wherein each standard panel includes a flange which runs only along one edge of the standard panel. Advantageously, the canopy structure including the standard panels is able to reduce the need of a high number of different canopy parts. The amount of different types of molds or tools for producing the standard panels is reduced which leads to a more cost-effective production of the canopy structure.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 18, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Thomas Kruse
  • Cable hang-off arrangement
    Patent number: 11008722
    Abstract: Provided is a cable hang-off arrangement of an elevated platform including a number of tubular enclosures, wherein a tubular enclosure is configured to accommodate a transmission cable arrangement and includes a vertical section arranged for connection to a supporting structure of the elevated platform; a horizontal section arranged at the level of the elevated platform; and a curved section between the vertical section and the horizontal section. Also provided is a tubular enclosure of such a cable hang-off arrangement; an offshore facility; and a method of securing a transmission cable arrangement to such an offshore facility.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 18, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Johnny Soerensen
  • Bearing arrangement and a wind turbine
    Patent number: 10989174
    Abstract: Provided is a bearing arrangement for a wind turbine, including a first portion, a second portion, and a sound wave sensor which is configured to detect a thickness of the second portion, wherein one of the first portion and the second portion is movable relative to the other of the first portion and the second portion. In contrast to known bearing arrangements for wind turbines, the thickness of the second portion which for example is exposed to wear may be actively detected. Thus, the information of the thickness is available at any time. Thus, a demand of an exchange of the second portion can be precisely predicted and determined.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 27, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Soeren Forbech Elmose, Björn Pedersen
  • Method for controlling the pitch angle of wind turbine blades
    Patent number: 10982652
    Abstract: A method for controlling the pitch angle of the blades including the following steps of: measuring an energy storage of the blades pitch actuation system at predefined values of a first blade pitch angle interval; comparing the measured values of the energy storage of the blades pitch actuation system with a predefined minimum value of the energy storage; if the measured values of the energy storage are all greater or equal than the predefined minimum value of the energy storage then enabling normal operation; if at least one of the measured values of the energy storage are lower than the predefined minimum value then: calculating a third pitch angle calculating a third blade pitch angle interval extending between a fourth pitch angle and the second pitch angle; and limiting the blades pitch actuation system to operate only in the third pitch angle interval.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: April 20, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Mikkel Aggersbjerg Kristensen
  • Control for a wind turbine
    Patent number: 10961981
    Abstract: A method of controlling a wind turbine having a nacelle, a rotor, a rotating hub, a first rotor blade and at least a second rotor blade, both rotor blades being mounted to the hub. The method includes measuring the strain in the first rotor blade by a strain measurement device attached to the first rotor blade; and choosing the operational parameters of the wind turbine based on the measured strain such that fatigue damage of the second rotor blade is reduced. A wind turbine is controlled by such a method.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 30, 2021
    Assignee: Siemens Gamesa Renewable Energy A/S
    Inventors: John M. Obrecht, Karsten Schibsbye
  • Shadow detection
    Patent number: 10954921
    Abstract: The detecting a shadow is determined by a modeling of at least a portion of a wind turbine. First and second sensors are arranged relative to the model such that the first sensor detects a light and the second sensor detects a shadow during the conditions where the shadow would be produced.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: March 23, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Robert J Nelson
  • Wind turbine
    Patent number: 10954997
    Abstract: Provided is a wind turbine including a tower and a nacelle rotatable relative to the tower by means of a yaw bearing arrangement having a yaw ring fixed relative to the tower, several upper sliding pads arranged between the upper side of the yaw ring and a sliding structure of the nacelle and several lower sliding pads arranged between the lower side of the yaw ring and the sliding structure, wherein the sliding pads are fixed to the yaw ring and that at least one radial opening is provided in the sliding structure allowing access to the upper or lower sliding pads.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: March 23, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Steen Damgaard, Rune Nielsen
  • Controlling a multi winding set permanent magnet electrical machine
    Patent number: 10944345
    Abstract: Provided is a method and arrangement for controlling a multi winding set permanent magnet electrical machine in case of a fault in a first group of the winding sets leaving a second group of the winding sets functional, the method comprising: determining a value of a torque generated by all winding sets; and controlling values of currents of the second group of winding sets based on the value of a torque, in order to reduce a damaging torque and/or a torque oscillation occurring and/or to break the machine.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 9, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Ziad Azar, Nuno Miguel Amaral Freire, Arwyn Thomas
  • Covering element for covering a slot between two adjacent tooth tips of an electromagnetic machine
    Patent number: 10938261
    Abstract: Provided is a covering element for covering a slot between two adjacent teeth of an electromagnetic machine, a stator for an electromagnetic machine and a method of forming a covering element. The covering element comprises a first sub-element and a second sub-element. The first sub-element and the second sub-element are arranged adjacent to each other in a first direction. Further, the second sub-element is made of a different material than the first sub-element.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: March 2, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Subhra Samanta, Hans-Joergen Thougaard
  • Damping wind turbine tower oscillations
    Patent number: 10934997
    Abstract: Provided is a method for damping a side-side oscillation of a tower of a wind turbine having a generator connected to a converter, the method including: measuring an acceleration value of the tower; determining, based on the acceleration value, at least one frequency value of at least one tower oscillation mode, including a second tower oscillation mode; controlling the converter of the wind turbine based at least on the acceleration value and the frequency value.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: March 2, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Per Egedal
  • Method and cover for covering an opening in a component of a wind turbine
    Patent number: 10927816
    Abstract: Provided is a method for temporarily covering an opening in a component of a wind turbine, including the steps: positioning a cover including an inflatable torus and a tarpaulin, whose circumference is attached to the torus, over the opening such that the torus extends around the outer circumference of a wall whose inner circumference delimits the opening and that the tarpaulin extends across the opening, and inflating the torus to attach the cover to the component.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: February 23, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Asp Ravn Diget, Anders Elsborg Hoejris