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Patent Searching and Data


Matches 501 - 550 out of 3,606

Document Document Title
WO/2012/019613
A method of operating at partial load a wind turbine (1) supplying electrical power to an electrical grid (20) includes monitoring stability of the grid; and upon detection of a reduced grid stability, changing operation of the wind turb...  
WO/2012/019609
The invention relates to a method for controlling a wind power plant comprising a plurality of wind turbines being operatively connected to a plant collector grid, the method comprising the steps of providing a desired power reference si...  
WO/2012/016335
A transverse axis fluid turbine with controllable display components thereof is disclosed. The turbine has a base structure, rotor rotatably attached to the base structure and at least three blades rotatably attached to the rotor. A matr...  
WO/2012/016319
The present disclosure is directed at a method and system for harnessing wind energy using a tethered airfoil. During a traction phase, wind is allowed to extend a kite tether. Wind energy that is harnessed through extension of the kite ...  
WO/2012/017106
The invention relates to a wind turbine anchored to the ground or to a base, and comprising a pole, the natural oscillation frequency of which is purposely adjusted to the frequency of appearance of the air vortices or eddies produced af...  
WO/2012/016261
A wind power installation is described having a collector area (2) which surrounds an updraft chimney (1) in an annular shape, is covered by a collector roof (3) and is connected to the updraft chimney (1) by means of a ring of flow chan...  
WO/2012/017106
The invention relates to a wind turbine anchored to the ground or to a base, and comprising a pole, the natural oscillation frequency of which is purposely adjusted to the frequency of appearance of the air vortices or eddies produced af...  
WO/2012/016585
The present invention relates to a method of reactive power regulation in a wind turbine comprising a local reactive power control system adapted to operate in a central control mode and a local control mode, a method of reactive power r...  
WO/2012/013864
The invention relates to supplying a group of loads used for the interior of premises and for exterior lighting. The process of the invention enables the energy generated either by the 50 Hz distribution network, by a storage battery, or...  
WO/2012/014241
Technology sector: the present invention refers to an engineer structure for the production of electrical energy by renewable sources like wind and sun due to the striking of currents of airs which move inside a room which is controlled ...  
WO/2012/014241
Technology sector: the present invention refers to an engineer structure for the production of electrical energy by renewable sources like wind and sun due to the striking of currents of airs which move inside a room which is controlled ...  
WO/2012/011601
Provided are: a working system for a floating structure, enabling the work of installation, maintenance, etc. of the floating structure to be performed in a stable state; a floating structure; a working ship; and a working method for a f...  
WO/2012/007444
The current invention concerns a mobile system which can be a motorized vehicle or which can be towed by a motorized vehicle such as a car or truck, for generating and providing electricity; said mobile system comprising a mobile platfor...  
WO/2012/007595
Electricity production system comprising a pump system made up of a rotary pump (2) with radial pistons that, by means of an eccentric rotary movement, convert the movement of the wind driving a wind turbine (1) into a stream of fluid at...  
WO/2012/009584
The present technology is directed generally to pneumatic gearbox systems with variable speed transmission and associated systems and methods. In selected embodiments, pneumatic gearbox systems can include a variable input power source a...  
WO/2012/006197
In one illustrative embodiment, a wind-driven charging system includes a wind-driven rotation device coupled to a rotatable shaft, and a plurality of electric generators disposed at different longitudinal locations along the rotatable sh...  
WO/2012/003970
A wind turbine typically includes a generator and a rotating mechanical system having a natural period. The present invention relates to a method of controlling generator torque that minimises oscillations in the speed of the generator r...  
WO/2012/004738
The device (10) comprises a turbine (22, 34) having an impeller (22), and an electric generator (12, 24) having a stator (12) provided with stator windings distributed around a cylindrical surface (X) coaxial to the impeller (22), and a ...  
WO/2012/003835
The present invention relates to a wind turbine facility power supplying arrangement for supplying electrical power to at least a switchgear being able to isolate the wind turbine facility from an electrical network, the wind turbine fac...  
WO/2012/002265
Provided is a windmill pitch control device capable of performing feathering and also continuously generating power even if an ordinary power source loses the ability to supply power. A pitch controller (50) transmits a control signal fo...  
WO/2012/000444
An airflow collection device includes an airflow collection channel (1) provided with a large outer port and a small inner port. A channel wall of the airflow collecting channel is at least provided with moving parts (26, 122, 222, 225, ...  
WO/2012/000510
A method for monitoring structural health of a filter comprising a capacitor in a wind turbine, a system for monitoring structural health of a filter comprising a capacitor in a wind turbine, and a wind turbine are provided. The method i...  
WO/2012/003021
An electric power generating system is provided that uses a wind turbine to generate waste-heat that is utilized in an organic Rankine Cycle drive that converts heat energy into rotation of a generator rotor for generating electricity. A...  
WO/2012/002607
The present invention generates power using tidal range, and comprises: a tide water hydraulic power generation device provided with a buoyancy body for generating buoyancy to enable floating thereof; a center shaft that is attached to a...  
WO/2012/000517
Methods, systems, and articles for operating a wind power plant during a grid fault. An energy storage system may be configured to transfer reactive power from the energy storage system to a power grid in response to detecting the grid f...  
WO/2012/001188
The invention relates to a device that generates electrical energy from renewable energies by means of the rotation of a motor supplied by solar energy. The rotation of the motor spins an axle equipped with horizontal arms bearing wind t...  
WO/2012/001138
A differential transmission (4) for an energy generating installation, in particular for a wind power installation, has three input or output drives wherein a first input drive is connected to an input drive shaft (2) of the energy gener...  
WO/2012/002606
The present invention relates to a rope conveyor structure having a plurality of plates attached to a rope in a separated manner, and the rope that is rotated using the plates having received resistance from the velocity of flow or wind ...  
WO/2012/001135
A variable rotation speed generator (6, 14, 18) has at least one electrical winding which is connected to at least one generator-side frequency converter output stage (22), wherein the winding is in the form of a single-tooth winding.  
WO/2011/160602
An airflow collection device includes an airflow collection channel (1, 101) provided with a large outer port and a small inner port. A flow-guiding body (2, 102) is arranged in the airflow collection channel (1, 101). A wind motor inclu...  
WO/2011/160634
A wind park comprises a plurality of wind turbines with a least one wind turbine downstream of at least one upstream turbine (20). The downstream turbine (24) includes a Lidar (26) or other device for sensing characteristics of the wake ...  
WO/2011/161692
The present invention provides pre-determined reactive power to asynchronous generator of a wind turbine, through a feedback controlled inverter by eliminating the usage of capacitor banks and is installable in remote places where grid (...  
WO/2011/160643
A wind turbine comprises a power converter connected between a generator in the wind turbine and a power grid. The power converter comprises a direct-current (DC) link and is adapted to supply a current to the power grid. A detection uni...  
WO/2011/159247
The invention relates to a device for generating electrical power, wherein the device (3) is adapted to be installed in connection with a building or a construction provided with at least one first gas source (7a, 7b, 7c, 7d) adapted to ...  
WO/2011/157862
The invention relates to a dual supply generator (2), the rotor of which is connected to the electric grid (3) by means of a back-to-back converter (4) and the stator of which is connected to the electric grid (3), characterized essentia...  
WO/2011/157220
An energy storage type wind-power generating system is disclosed. The system includes a wind-power machine (40), a compressor (41), at least one energy storage (42), a generator (43), a pressurized heat supply system (44), and a depressu...  
WO/2011/156949
A ducted-type wind generator comprises a windmill, a motor drive system and a ducted-type wind generating device. The windmill has a windmill shaft (1) and blades (2) mounted on the windmill shaft. The motor drive system is mounted on a ...  
WO/2011/157859
The invention relates to a recharging station for electric vehicles that uses solar and wind energy as a primary energy source. Photovoltaic solar modules (5) and electric wind generators (1) will be installed in the recharging station, ...  
WO/2011/153945
A wind-sail type generator includes a tower foundation (1), a tower base (2) provided on the tower foundation, a tower main shaft (5), a coupling (3), a generator (6) and multiple wind sails (8). The tower main shaft is provided in a set...  
WO/2011/155278
Disclosed is a fluid power generation device that can cause the energy of a fluid that a rotor receives to match the electrical energy that a generator outputs. The fluid power generation device is provided with a drive device (24) that ...  
WO/2011/151943
A wind-driven electricity generation device (1) is provided with a wind wheel (3) which is subjected to wind power and rotates in a specific rotational direction about a predetermined rotating shaft (2). The wind-driven electricity gener...  
WO/2011/153012
The present invention relates to a system and method for harvesting wind energy from air exhausted by other systems. Ventilation and heat exchange systems force air movement using fans. Exhaust airflow may also be the result of a combust...  
WO/2011/150932
The present invention relates to a control system and an associated method for controlling an amount of reactive power delivered from a wind power plant to an associated power supply grid, the control system comprising a wind power plant...  
WO/2011/147997
An energy extraction device and method for extracting energy from a fluctuating energy flow from a renewable energy source. A hydraulic pump is driven by a rotating shaft, driven in turn by a renewable energy source. A hydraulic motor dr...  
WO/2011/147996
An energy extraction device and method for extracting energy from a fluctuating energy flow from a renewable energy source. A hydraulic pump is driven by a rotating shaft, driven in turn by a renewable energy source. A hydraulic motor dr...  
WO/2011/148653
It is intended to provide a power generating apparatus of renewable energy type which can control the hydraulic transmission with high accuracy according to control signals. 1. The power generating apparatus of renewable energy type incl...  
WO/2011/148652
It is intended to provide a power generating apparatus of renewable energy type which obtains desired torque rapidly in response to changes of the renewable energy as well as a method of operation such an apparatus. The power generating ...  
WO/2011/147996
An energy extraction device and method for extracting energy from a fluctuating energy flow from a renewable energy source. A hydraulic pump is driven by a rotating shaft, driven in turn by a renewable energy source. A hydraulic motor dr...  
WO/2011/148654
In view of the problems above, it is an object of the present invention is to provide a power generating apparatus of renewable energy type which can achieve a desired output of the hydraulic motor and a stable power generation regardles...  
WO/2011/148652
It is intended to provide a power generating apparatus of renewable energy type which obtains desired torque rapidly in response to changes of the renewable energy as well as a method of operation such an apparatus. The power generating ...  

Matches 501 - 550 out of 3,606