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公开(公告)号：US10598145B2
公开(公告)日：2020-03-24
申请号：US15511351
申请日：2015-08-18
摘要： This method allows determining the operating point of a hydraulic machine in a considered operating range, such as turbine mode, and comprises steps that consist in a) determining two coordinates (N′11, T′11) of a first series of potential operating points of the hydraulic machine for the orientation affected to guide vanes of the machine, b) measuring the rotation speed of the machine, and c) determining the torque exerted by water flow on the machine. The method further includes steps consisting in d) calculating two coordinates (N11, T11) of a second series of potential operating points of the machine in function of the rotation speed (N) measured at step b) and the torque determined at step c), and e) deducing the two coordinates (N11_real, T11_real) of operating point that belongs both to the first and the second series in the said considered operating range of the machine.
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公开(公告)号：US10343875B2
公开(公告)日：2019-07-09
申请号：US14967017
申请日：2015-12-11
摘要： The assembly includes a tool with a stem having a first end having a projecting portion such as a ring, and a second end adapted to be engaged by lifting equipment. The assembly also includes a stem receiving portion formed in a wind turbine part to be lifted. The stem of the tool is adapted to be freely passed through the stem receiving portion until the first end of the stem is locked to the stem receiving portion, thereby preventing the stem from separating from the stem receiving portion when lifting the wind turbine part.
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公开(公告)号：US10294914B2
公开(公告)日：2019-05-21
申请号：US15305192
申请日：2015-04-15
发明人： Rajesh Panchal , Nicholas Balcet , Serge Prigent
摘要： The present invention relates to a hydraulic installation where sediment concentration in the water flow circulating through the cited installation is monitored continuously. According to the invention, the hydraulic installation comprises a pressure-reducing device and a primary sensor: the pressure reducing device decreases the pressure and discharge of upstream water flow, comprising sediments, allowing that the primary sensor can operate continuously measuring sediment concentration from the upstream water flow. The hydraulic installation also comprises a calibrating device, providing the primary sensor with a reference value to be used for comparison matters and for establishing the content of sediment in the water flow.
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公开(公告)号：US10215159B2
公开(公告)日：2019-02-26
申请号：US14760415
申请日：2014-01-17
发明人： Isaac Pineda Amo
IPC分类号： F03D7/02
摘要： 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.
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公开(公告)号：US10161383B2
公开(公告)日：2018-12-25
申请号：US14760687
申请日：2014-01-17
发明人： Isaac Pineda Amo
摘要： 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.
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公开(公告)号：US10087911B2
公开(公告)日：2018-10-02
申请号：US14777416
申请日：2014-03-20
发明人： Luca Feigl
IPC分类号： F03D1/06 , B29C70/48 , B29C70/68 , B29D99/00 , B29C70/86 , B29L31/08 , B29K105/08 , B29K705/00
摘要： Method of manufacturing an impregnated metal insert for a wind turbine blade root, the insert comprising an outer surface and an open end adapted to receive a fastening element for attachment to a wind turbine rotor hub, wherein the method comprises covering the insert outer surface with one or more resin pre impregnated fiber layers, and heating for curing such that a resin impregnated fiber layer adheres to the outer surface of the insert. The disclosure is further related to the method of manufacturing a portion of a wind turbine blade.
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公开(公告)号：US20180252198A1
公开(公告)日：2018-09-06
申请号：US15759885
申请日：2016-09-09
CPC分类号： F03B3/106 , F03B3/02 , F03B3/183 , F03B11/002 , F03B11/02 , F05B2270/301 , Y02E10/223 , Y02E10/226
摘要： The present invention generally relates to hydraulic machinery, such as hydraulic turbines. More specifically, the invention is directed to optimizing power consumption when the turbine is used in condenser mode. The present invention provides a novel hydraulic installation where the reduction of pressure in the spiral case during condenser mode operations is more efficient, limiting the power consumption if compared to state-of-the-art installations.
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公开(公告)号：US10018179B2
公开(公告)日：2018-07-10
申请号：US14911688
申请日：2014-08-18
发明人： Jaume Betran Palomas
CPC分类号： F03D7/0224 , F03D1/0675 , F05B2240/31 , F05B2260/78 , F05B2260/964 , Y02E10/721 , Y02E10/723
摘要： 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 portion of an inner surface of the airfoil structure with a portion of the internal support structure. The airfoil structure can be passively pitched relative to the internal support structure according to aerodynamic pressure distribution at different blade locations.
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9.发明授权公开(公告)号：US09951798B2
公开(公告)日：2018-04-24
申请号：US14592180
申请日：2015-01-08
发明人： Armin Steinhilber
CPC分类号： F15B13/0402 , F03B3/183 , F03B11/004 , F15B2013/041 , F15B2211/20592 , F15B2211/31582 , Y02E10/226
摘要： A control device includes a valve, having a body connected to the first chamber of a cylinder via a first hydraulic connection and to the second chamber of the cylinder via a second hydraulic connection. The control device includes a first hydraulic duct connected to a first actuating-fluid source, and a second hydraulic duct connected to a second actuating-fluid source. The hydraulic ducts communicate with the body of the valve. The valve further includes a distribution device that is movable within the body of the valve, between a first position, in which the distribution device places the first hydraulic connection and the first hydraulic duct in fluid communication, and a second position, in which the distribution device places the second hydraulic connection and the second hydraulic duct in fluid communication.
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公开(公告)号：US09945255B2
公开(公告)日：2018-04-17
申请号：US14893023
申请日：2014-05-23
CPC分类号： F01D25/24 , F03D1/0608 , F03D1/065 , F03D11/04 , F03D13/20 , F03D80/00 , F03D80/70 , F05B2240/14 , Y02E10/726 , Y02E10/728
摘要： It comprises a body that has an inertial asymmetrical and/or the body is asymmetrical in terms of geometry and/or mass of with respect to a XZ plane passing substantially through the centre of a wind turbine rotor for withstanding asymmetrical loads acting on the wind turbine. The inertia in sections of the structural member body at one side of the XZ plane may be 50% greater than the inertia in sections of the structural member body at another side of the XZ plane. The structural member may connect the wind turbine tower with the wind turbine rotor and may comprise at least two asymmetrical portions defined on both sides of the XZ plane which may be mutually asymmetrical reinforcing elements.
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