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Results 1-10 of 41,669 for Criteria: Office(s):all Language:EN Stemming: true maximize
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NoCtrTitlePubDateInt.ClassAppl.NoApplicantInventor
1. WOWO/2014/112034 - ABNORMALITY DIAGNOSTIC METHOD AND SYSTEM24.07.2014
G01M 13/00
PCT/JP2013/050524MITSUBISHI HEAVY INDUSTRIES, LTD.YANO, Akihiko
An abnormality diagnostic method for a device that includes a first mechanical element that has a rolling contact portion, a second mechanical element that does not have a rolling contact portion, and a circulation line through which an oil circulates through the first mechanical element and the second mechanical element and that uses at least a portion of the oil as a lubricating oil for the rolling contact portion, comprises a detection step of detecting the number of wear debris particles contained in the oil flowing in the circulation line, a determination step of determining whether the number of wear debris particles detected in the detection step exceeds a threshold value, a ratio acquisition step of acquiring a particle count ratio for flat particles to particles of other shapes in the wear debris, and an abnormality location identification step of identifying, on the basis of the particle count ratio, the mechanical element, from the first mechanical element and the second mechanical element, in which the abnormality occurred when the number of wear debris particles has been determined, in the detection step, to exceed the threshold value.

2. WOWO/2014/112033 - WIND POWER GENERATION FACILITY, METHOD FOR OPERATING SAME, AND WIND FARM CONTROL DEVICE24.07.2014
F03D 7/04
PCT/JP2013/050523MITSUBISHI HEAVY INDUSTRIES, LTD.YAMASHITA, Yukio
A wind power generation facility equipped with: a wind farm that includes multiple wind power generation devices each having a synchronous generator; a local grid to which the wind farm is connected; a direct current power transmission route provided between the local grid and a grid; a sending end converter for converting the alternating current power from the local grid into direct current power, and supplying the direct current power to the direct current power transmission route; a receiving end converter for converting the direct current power from the direct current power transmission route into alternating current power, and supplying the alternating current power to the grid; a fault detection unit that detects abnormal events in the grid; and a first wind farm controller that, when an abnormal event in the grid is detected by the fault detection unit, controls the sending end converter and adjusts the local grid voltage phase so as to reduce the load angle, which indicates the difference in the generator voltage phase of the synchronous generators of the wind power generation devices with respect to the local grid voltage phase in the local grid.

3. WOWO/2014/112963 - WIND IMPELLER FOR A WIND POWER PLANT (ALTERNATIVES)24.07.2014
F03D 1/06
PCT/UA2013/000022SIDORENKO, Yuri GrygorovychSIDORENKO, Yuri Grygorovych
A wind impeller for a wind power plant with a vertical rotor rotation axis is formed from two identical rings which are mounted coaxially and are rigidly interconnected. Vanes which are rotatable about the vertical axis of the vane are arranged between the rings. A wind impeller for a wind power plant with a horizontal rotor rotation axis comprises at least two identical systems of vanes, the axes of which are arranged radially in the wind impeller. Each system of vanes comprises two triangular vanes of different area. The vanes of the first and second alternatives are in the shape of a triangle and are fastened with the aid of torsion bars so as to form a balanced suspension. In the first alternative, the axis of the vane passes through one angle of the triangle and through the axes of the torsion bars. In the second alternative, the axis of each system of vanes coincides with the axis of the torsion bar and is parallel to said axis. The group of inventions makes it possible to automatically mount the vanes of wind impellers in an optimum direction relative to the wind and ensures adjustment of the speed of rotation of the wind impeller relative to the wind speed without using additional mechanisms.

4. WOWO/2014/112454 - CONTROL APPARATUS, METHOD, AND PROGRAM, AND NATURAL ENERGY GENERATION APPARATUS PROVIDED WITH CONTROL APPARATUS, METHOD, AND PROGRAM24.07.2014
H02J 3/32
PCT/JP2014/050399MITSUBISHI HEAVY INDUSTRIES, LTD.MURATA, Hiroki
A secondary cell is caused to operate efficiently in response to the weather. A control apparatus (10) for controlling the charging and discharging of a secondary cell (20) connected to an electrical generation device for generating electricity using natural energy, wherein the apparatus is equipped with: a control unit (13) for controlling the charging and discharging of the secondary cell (20) so that a target charging rate, which is the target charging rate for the secondary cell (20), is maintained; an estimation unit (11) for estimating the amount of electric power generated using the electrical generation device after a prescribed amount of time has elapsed, on the basis of weather predictions affecting the amount of electric power of the electrical generation device; and a charging rate change unit (12) for changing the target charging rate when the difference between the amount of electric power generated after a prescribed amount of time has elapsed estimated by the estimation unit (11), and the current amount of electric power of the electrical generation device, is determined to be larger than a prescribed value.

5. WOWO/2014/112958 - VERTICAL AXIS WIND TURBINE24.07.2014
F03D 3/00
PCT/SK2014/000002OTTMAR, MartinOTTMAR, Martin
Wind turbine is device with vertical flatboards rotor that use wind energy remarkable that consist of fixed carry axle-tree (1), fixed circle base (2), concave rotor axle-tree (4) with four rotor flatboards (3) agile assembled on carry axle-tree (1), cylinder cover with exit windhole (5) turnable assembled on carry axle-tree (1) and circle base (2), swinging assembled wings of enter windhole (6), turnable assembled direction lamellas (7) inside enter windhole, swinging assembled string shock absorber and fixed lamellas stop motions (8), swinging assembled spiralis (9) and spirall pegs (10) on top and bottom enter windhole area assembled on cylinder cover with exit windhole (5) and fixed pneumatic control system (11), reservoir of compressed air (12), rub coupling (13) and direction wing (14) on top area of cylinder cover with exit windhole (5).

6. WOWO/2014/111522 - METHODS OF OPERATING A WIND TURBINE24.07.2014
F03D 7/02
PCT/EP2014/050903ALSTOM RENOVABLES ESPAÑA, S.L.PINEDA AMO, Isaac
Methods of operating a variable speed wind turbine as a function of a wind speed, the wind turbine having a rotor with a plurality of blades, and one or more pitch mechanisms for rotating the blades. The method comprising a sub-nominal zone of operation for wind speeds below the nominal wind speed and a supra-nominal zone of operation for wind speeds above the nominal wind speed. In the supra-nominal zone, the blades are pitched so as to maintain the rotor speed substantially constant, and a tip speed ratio of the wind turbine is substantially continuously being determined and wherein an instantaneous minimum pitch angle is substantially continuously being determined based on the instantaneous tip speed ratio, and the blades are never pitched below the instantaneous minimum pitch angle. The disclosure further relates to a wind turbine suitable for carrying out such methods.

7. WOWO/2014/111614 - METHOD FOR CONTROLLING A SET OF ASYNCHRONOUS ELECTRIC GENERATORS AND CORRESPONDING SYSTEM24.07.2014
F03D 7/04
PCT/ES2014/070034UNIVERSITAT POLITÈCNICA DE CATALUNYAEGEA ALVAREZ, Agustí
The invention relates to a method for controlling a set of asynchronous electric generators and to the corresponding system. More specifically, the invention relates to a method for controlling a set of asynchronous electric generators connected to a local interconnection network that can receive the electric power generated by the generators. In addition, a central converter is also connected to the network. The optimal average mechanical rotation speed is calculated as a function of the local conditions of each generator and the average mechanical speed of the generators is adjusted, controlling the active and reactive power of the set using vector control.

8. WOWO/2014/111093 - WIND TURBINE COMPONENT RAIL CAR FOR TRANSPORTING A WIND TURBINE COMPONENT24.07.2014
B61D 3/16
PCT/DK2014/050010VESTAS WIND SYSTEMS A/SIVERSEN, Paul
A wind turbine component rail car (20) for transporting a wind turbine component (30A), comprising: a first wheel set (24) connected to a first support structure (31A) configured to support a first end of the wind turbine component; a second wheel set (25) connected to a second support structure (32A) configured to support a second end of the wind turbine component; wherein a beam (23) connects the first wheel set to the second wheel set and the beam is telescopic such that the length of the rail car is adjustable.

9. WOWO/2014/111585 - WIND TURBINE BLADE24.07.2014
F03D 7/02
PCT/EP2014/051061ALSTOM RENOVABLES ESPAÑA, S.L.BETRAN PALOMAS, Jaume
Wind turbine blade comprising at least one deformable trailing edge section having a plurality of actuators consecutively arranged substantially downstream from one another and a control system for controlling the actuators, wherein a downstream end of one actuator is connected by a substantially rigid link with an upstream end of the next actuator and the plurality of actuators comprises an upper actuator being mounted above a chord line of the blade section and a lower actuator being mounted below a chord line of the blade section. Wind turbines comprising such a blade and methods of controlling loads on a wind turbine blade are also described.

10. WOWO/2014/111504 - METHOD OF STARTING A WIND TURBINE24.07.2014
F03D 7/02
PCT/EP2014/050875ALSTOM RENOVABLES ESPAÑA, S.L.PINEDA AMO, Isaac
Methods of starting a wind turbine from a standstill substantially until generator connection, the wind turbine having a rotor with one or more blades, a pitch system for rotating the blades along their longitudinal axes and a generator operationally connected with the rotor. In standstill, the blades are substantially in a feathered position and the generator is not generating electrical power. The methods may comprise measuring the wind speed representative for the wind turbine and measuring the rotor speed of the wind turbine, and when the rotor speed is not equal to zero,determining the tip speed ratio for the wind turbine, and determining the pitch angle of the blades as a function of the tip speed ratio to optimize the torque produced by the blades of the wind turbine rotor.


Results 1-10 of 41,669 for Criteria: Office(s):all Language:EN Stemming: true
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