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Matches 701 - 750 out of 5,951

Document Document Title
WO/2015/059232A1
Wind turbine blades comprising one or more deformable trailing edge sections having a multistable sheet comprising a plurality of bistable elements, each bistable element having two stable positions, wherein the multistable sheet is atta...  
WO/2015/055217A1
The present invention relates to a system for electric pitch control primary for wind turbine blades, which system comprises at least one first electric motor, which motor is electrically coupled to a first electronic control device, whi...  
WO/2015/055958A1
The invention relates to a wind turbine (1) comprising: - a rotor (5) rotating about a horizontal axis (15) of rotation substantially parallel to the direction of the wind, the rotor (5) having a front face (6) facing into the wind and s...  
WO/2015/052175A1
A vertical-axis wind turbine apparatus is disclosed. In at least one embodiment, the apparatus provides a substantially vertically-oriented main shaft. A blade assembly is coaxially aligned with and rotatably engaged about the main shaft...  
WO/2015/053640A2
The present invention relates to a wind turbine machine comprising a supporting means, a pair of spaced apart counter rotatable front and rear rotors being rotatably supported on said supporting means, said front and rear rotors being ad...  
WO/2015/051801A1
Methods and systems for controlling a wind turbine in a manner that takes into account the degree of loading of and damage to one or more components of the turbine are provided. An operational load on a wind turbine part is determined, a...  
WO/2015/053768A1
A vortex generator (VG) (42, 64, 80, 82, 84) mounted via a mounting plate (44, 92) to a wind turbine blade (22, 98). The VG airfoil (46) may be pivotally attached to the mounting plate by a spring hinge (48, 85) that causes the VG airfoi...  
WO/2015/053640A3
The present invention relates to a wind turbine machine comprising a supporting means, a pair of spaced apart counter rotatable front and rear rotors being rotatably supported on said supporting means, said front and rear rotors being ad...  
WO/2015/048972A1
A control method and apparatus for safe mode operation at high yaw error is described. A yaw error detection block (2) detects a yaw error. A load-reducing controller (4), for mitigating one or more structural loads associated with the y...  
WO/2015/046129A1
Provided is a monitoring system for monitoring the state of machinery for a wind power generator that has reduced costs. A monitoring system for a wind power generator comprises: a microphone (90, 91) that acquires acoustic data and that...  
WO/2015/044795A1
Installation for electricity generation from the unidirectional and bidirectional flow of a fluid, air in particular. This type of installation includes: - a conduit (2) through which the flow passes; - a turbine (4) located inside the c...  
WO/2015/043602A1
A wind turbine generator 1 is connected to a section 2 of an electricity grid 3 via a converter 4, which converts the ac output power from the generator into three-phase electric power at the voltage and frequency of the grid 3. The conv...  
WO/2015/047148A2
The present invention relates to a floating unit adapted to extract energy from the wind comprising a floater exhibiting a square figure of structural elements permanently attached to nine orthogonal equidistant primary nodes each one of...  
WO/2015/047148A3
The present invention relates to a floating unit adapted to extract energy from the wind comprising a floater exhibiting a square figure of structural elements permanently attached to nine orthogonal equidistant primary nodes each one of...  
WO/2015/039665A1
The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the hub. The method comprises providing wak...  
WO/2015/040360A1
A hydraulic transmission comprising a variable displacement pump and motor, at least one of which has cylinders having valves which are controllable on each cycle of cylinder working volume to determine the net displacement of working fl...  
WO/2015/037024A1
A process is described for managing, adjusting and controlling at least one high-altitude wind generator, of the type preferably comprising at least one kite operatively connected through driving tie-rods to winches or other mechanisms f...  
WO/2015/036806A3
Horizontal axis W/T of low wind speeds of propeller type, bearing a main rotor of three blades (1), while in the space between two successive blades (1) and diametrically opposite to the third, an additional 4th blade (2) also of propell...  
WO/2015/036806A4
Horizontal axis W/T of low wind speeds of propeller type, bearing a main rotor of three blades (1), while in the space between two successive blades (1) and diametrically opposite to the third, an additional 4th blade (2) also of propell...  
WO/2015/036010A1
A system and a method for predictably configuring a component of a wind turbine are presented. The system includes a central repository storing a set of states for the component and a set of corresponding weather condition entries, a sch...  
WO/2015/032409A1
To efficiently run a wind turbine in varying wind speeds, the wind turbine may be configured to switch between two different electrical configurations that offer different efficiencies depending on wind speed. For example, a star configu...  
WO/2015/035262A1
A vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height...  
WO/2015/035262A9
A vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height...  
WO/2015/032410A1
To safely operate a wind turbine, a control system may determine a current state of the wind turbine and identify whether the state is within an operational envelope. Based on measured sensor data, the control system may calculate the cu...  
WO/2015/028399A1
The invention relates to a wind turbine comprising a wind rotor (13) for driving a generator (14) comprising a converter (15) for generating electric power, a controller (2) and an internal power supply unit (4), for which an auxiliaries...  
WO/2015/024895A1
The present wind turbine blade comprises an airfoil structure comprising an airfoil shape, an internal support structure arranged spanwise along the length of the blade within the airfoil structure, and an elastic connection joining a po...  
WO/2015/021575A1
Disclosed is a multi-blade, horizontal-type, fully automatic, domestic wind power generator separately composed of front and rear rotary shaft tubes (5, 6), overlapping-type front and rear movable blades (3, 4), a power generator (1), a ...  
WO/2015/021994A1
The invention resides in a gear drive system (100) for enabling driven rotation of a first component (110) relative to a second component (120), comprising a drive gear (135), a driven gear (140) and a mounting assembly (130) for support...  
WO/2015/017945A1
Disclosed is a multi-vane, horizontal stroke air and wind power engine, comprising more than 16 power vanes (3) installed on a drive shaft cylinder (4) or a drive shaft. The drive shaft cylinder (4) and the power vanes (3) are located be...  
WO/2015/020263A1
The present invention relates to a signal processing device for monitoring a state of wind-power turbine blades and a method thereof, the signal processing device comprising: an optical fiber sensor unit for sensing moment of rotation of...  
WO/2015/018382A1
The invention is directed firstly to a blade bearing assembly (1) for the rotatable mounting of a rotor blade, comprising two or more preferably rotationally symmetrical and annular connecting elements (4, 5) having in each case at least...  
WO/2015/014368A1
The present invention relates to determining and setting wind turbine type maximum power level (301) and individual wind turbine maximum power level (308) for over-rating control.  
WO/2015/016703A1
The invention provides a wind turbine, comprising a rotor, coupled to a rotor shaft defining a rotor rotational axis, said rotor comprising a set of rotor blades, an outer vertical drive shaft and an inner vertical drive shaft coaxially ...  
WO/2015/014366A1
Improvements Relating to Wind Turbines A wind turbine apparatus and a method of operating said wind turbine to maintain the load on the rotor blade below a predetermined threshold level is provided. The method comprises: measuring load a...  
WO/2015/014367A1
Disclosed is a fluid control system for operation of a pitch control system for wind turbines of the type comprising a pitch system driving at least one rotor blade, by at least one hydraulic actuator (1, 41, 51, 61, 71, 91). A hydraulic...  
WO/2015/012124A1
A fault diagnosis device for a wind power generation device, said fault diagnosis device including a sensor (81) that detects parameters (oscillation, acoustic emission (AE)) with which faults in the wind power generation device are dete...  
WO/2015/013149A3
A method and an apparatus are provided for initiating rotation of blades of a wind turbine when wind speed is less than a cut-in speed. A solar powered wind turbine apparatus includes a solar dome with photovoltaic cells, operably connec...  
WO/2015/013149A2
A method and an apparatus are provided for initiating rotation of blades of a wind turbine when wind speed is less than a cut-in speed. A solar powered wind turbine apparatus includes a solar dome with photovoltaic cells, operably connec...  
WO/2015/003710A1
A method for controlling a wind turbine during a safety operation is disclosed. A safety pitch control system is provided to pitch the blades individually at a number of pre-set approximately constant pitch rates including a first pitch ...  
WO/2015/006425A2
A prime mover that is powered by the energy of a fluid is provided. Such a prime mover may include a first fairing, a second fairing spaced apart from the first fairing to define a gap therebetween and a blade assembly mounted on a shaft...  
WO/2015/001301A1
A method of three-dimensional Doppler velocimetry applicable to turbines such as wind turbines achieves improved velocimetry by use of various possible convergent beam geometries and employing beam sources mounted on the turbine such as ...  
WO/2015/000078A1
A braking system for a turbine of a wind powered includes a hydraulic machine connected to a drive shaft of the turbine. A pressure regulating valve in the supply line of the hydraulic machine determines the pressure delivered to the sup...  
WO/2015/001403A1
The present subject matter relates to a pitching system for a blade (108) of a horizontal axis wind turbine (100). The pitching system includes a motor-cum-generator (220) to adjust a pitch of the blade (108) during a pitch-in mode, the ...  
WO/2014/202079A1
The invention relates to a wind turbine control system (WTCS) for controlling a wind turbine (WT), said wind turbine control system (WTCS) comprising a wind turbine controller (WTC) configured for controlling said wind turbine (WT) withi...  
WO/2014/204918A1
A variable pitch system for a water or wind turbine includes a hydraulic system that includes a first hydraulic system (90) and a second, redundant hydraulic system (92) that are completely contained in a nose region of the turbine. The ...  
WO/2014/201849A1
A method for actively optimizing, adjusting and controlling a distributed wind power plant provided with an energy-storage power station, which relates to the constraint of the wind power grid access guide rule on the upper and lower lim...  
WO/2014/203388A1
The present invention provides a control system for renewable energy power generation facilities, said control system being capable of contributing to the suppression of frequency variations having a period of several minutes to several ...  
WO/2014/202085A1
The present invention relates to a data communication system for managing data communication in a renewable energy generating system, the renewable energy generating system comprising: a plurality of wind turbines, and a first level cont...  
WO/2014/200814A1
A wind turbine system includes turbine blades (16) that turn a low speed shaft (18). A shrink disc coupling (24) radially connects the low speed shaft to a low speed gear box input shaft (22). A brake (26) for the gear box input shaft is...  
WO/2014/198353A1
The invention relates to a rotor blade (10) for a wind power plant having a vane (20) arranged on a surface (12) of the rotor blade (10) for influencing an air flow on the surface (12) of the rotor blade (10). A rotor blade according to ...  

Matches 701 - 750 out of 5,951