Patent application number | Description | Published |
20100219634 | WIND TURBINE CONTROL METHOD, CONTROL UNIT AND WIND TURBINE - A wind turbine control method for dampening vibrations of a transmission system, even in the presence of voltage dips and in any event that is susceptible to reducing active current generation capacity, is provided. First, for example, an initial torque or power instruction may be calculated based on a turbine operating state. Next, a torque or power adjustment term associated with dampening vibration modes of a turbine transmission system may be calculated. Then, a final torque or power instruction may be calculated by, for example, applying the adjustment term to the initial instruction. Finally, the final torque or power instruction may be transformed into a current instruction for controlling the wind turbine. | 09-02-2010 |
20100325986 | SYSTEM FOR JOINING A GONDOLA TO THE CONCRETE TOWER OF AN AEROGENERATOR - The present disclosure describes a system for joining a gondola to the concrete tower of an aerogenerator, wherein the concrete tower is formed by a lower annular section, one or several intermediate annular sections and an upper annular section, including a flat annular support which is inserted between an upper surface of the upper annular section of the tower and the lower surface of a yaw bearing that supports the gondola, the flat annular support comprising orifices wherethrough a plurality of joining means pass, each of which is fixed to the bottom of the upper annular section of the tower and to the bottom of the yaw bearing. | 12-30-2010 |
20120038169 | ELECTRIC GENERATOR AND PROCESS FOR ASSEMBLING A WIND TURBINE EQUIPPED WITH SAID GENERATOR - Disclosed herein is a generator having a rotor which comprises rotor excitation element-carrying modules, for example magnets, radially movable in relation to the generator shaft in such a manner, when in their retracted position, as to significantly ease generator transport and assembly. The use of these movable magnet-carrying modules is particularly useful in direct drive-type generators which do not require a multiplier. Another object of the invention is an assembly process which comprises a generator equipped with said radially movable magnet-carrying modules. | 02-16-2012 |
Patent application number | Description | Published |
20100219634 | WIND TURBINE CONTROL METHOD, CONTROL UNIT AND WIND TURBINE - A wind turbine control method for dampening vibrations of a transmission system, even in the presence of voltage dips and in any event that is susceptible to reducing active current generation capacity, is provided. First, for example, an initial torque or power instruction may be calculated based on a turbine operating state. Next, a torque or power adjustment term associated with dampening vibration modes of a turbine transmission system may be calculated. Then, a final torque or power instruction may be calculated by, for example, applying the adjustment term to the initial instruction. Finally, the final torque or power instruction may be transformed into a current instruction for controlling the wind turbine. | 09-02-2010 |
20100237834 | POWER GENERATION PLANT VOLTAGE CONTROL - A method for controlling a power generation plant may be provided. First, an equivalent grid voltage may be estimated based on electric magnitudes measured at a connection point of the power generation plant and an equivalent model of a power grid to which the power generation plant is connected. Then, on the basis of said estimated equivalent voltage, a command indicative of reactive power to be produced by the power generation plant may be generated. | 09-23-2010 |
20100241280 | WIND TURBINE CONTROL - Wind turbine control may be provided. First, a control parameter indicative of foreseeable fluctuations in a rotational speed of a rotor due to wind turbulence may be obtained. The first control parameter may be calculated based on a first signal indicative of a wind power and a second signal indicative of wind turbulence intensity. Then, the control parameter may be compared with a threshold value. Next, a maximum power to be generated by the wind turbine may be reduced if the control parameter exceeds said threshold. | 09-23-2010 |
20100325986 | SYSTEM FOR JOINING A GONDOLA TO THE CONCRETE TOWER OF AN AEROGENERATOR - The present disclosure describes a system for joining a gondola to the concrete tower of an aerogenerator, wherein the concrete tower is formed by a lower annular section, one or several intermediate annular sections and an upper annular section, including a flat annular support which is inserted between an upper surface of the upper annular section of the tower and the lower surface of a yaw bearing that supports the gondola, the flat annular support comprising orifices wherethrough a plurality of joining means pass, each of which is fixed to the bottom of the upper annular section of the tower and to the bottom of the yaw bearing. | 12-30-2010 |
20110239563 | WIND GENERATOR TOWER AND PROCESS FOR ASSEMBLY THEREOF - The present invention provides a wind generator tower and a process for assembly thereof. A truncated conical tower assembled from reinforced concrete modules disposes of a tensioning system which provides greater resistance to the same and, in turn, the joints defined between the modules which form the tower are sealed. | 10-06-2011 |
20130001954 | WIND TURBINE ASSEMBLING METHOD AND WIND TURBINE ASSEMBLED ACCORDING TO SAID METHOD - The method allows higher speed in assembling a wind turbine a tower, a nacelle and a rotor, the tower comprising at least two stackable annular sections made of concrete, the method comprising the steps of a) stacking the annular sections by using lifting and positioning means; b) stacking the nacelle onto the upper annular section by using lifting and positioning means; and c) connecting the annular sections to each other, as well as the upper annular section to the nacelle, through main connecting means adapted to withstand loads induced by the wind turbine rotor, wherein the step c) is performed after stacking the nacelle onto the upper annular section. | 01-03-2013 |
20130169241 | CONTROL METHOD OF A WIND TURBINE GENERATOR - The control method of a wind turbine generator increases the speed range of wind turbine generators, maximising the operation and efficiency thereof, in addition to lengthening their service life, on minimising the extreme and fatigue loads to which the wind turbine generators are subject, and which are due mainly to the stops and disconnections thereof as a result of strong gusts of wind. More specifically, the control method of the present invention stands out essentially for being based on the control of the reactive current circulating through the electric generator, said reactive current control being carried out in accordance with the rotational speed (ω | 07-04-2013 |
20150035282 | POWER CONTROL SYSTEM OF AN ELECTRICAL GENERATION UNIT DESCRIPTION - The present invention can be included in the technical field of power control systems of electrical generation units comprising a supervisory regulation link applicable to a generation unit which calculates operating parameters or orders based on temporary averages of the power measurement. | 02-05-2015 |
Patent application number | Description | Published |
20110061133 | PLANTS HAVING INCREASED YIELD-RELATED TRAITS AND A METHOD FOR MAKING THE SAME - The present invention relates generally to the field of molecular biology and concerns a method for increasing various plant yield-related traits by increasing expression in a plant of a nucleic acid sequence encoding a polypeptide selected from the group consisting of: GRF polypeptide, RAA1-like polypeptide, SYR polypeptide, ARKL polypeptide, and YTP polypeptide. The present invention also concerns plants having increased expression of a nucleic acid sequence encoding a polypeptide selected from the group consisting of: GRF polypeptide, RAA1-like polypeptide, SYR polypeptide, ARKL polypeptide, and YTP polypeptide, which plants have increased yield-related traits relative to control plants. The invention also provides constructs useful in the methods of the invention. | 03-10-2011 |
20140237687 | Plants Having Enhanced Yield-Related Traits and a Method for Making the Same - The present invention provides a method for enhancing various economically important yield-related traits in plants by modulating expression in a plant of a nucleic acid encoding a PATL (PATELLIN) polypeptide, a PRP38 (Precursor RNA Processing factor 38) polypeptide, an ADA2 (Adaptor 2) polypeptide, a GATA-like polypeptide, or a WD40 repeat (WDR) 23-like polypeptide. The present invention also concerns plants having modulated expression of a nucleic acid encoding a PATL polypeptide, a PRP38 polypeptide, an ADA2 polypeptide, a GATA-like polypeptide, or a WDR23-like polypeptide, which plants have improved yield-related traits relative to corresponding wild type plants or other control plants. The invention also provides nucleic acids and constructs useful in the methods of the invention. | 08-21-2014 |
Patent application number | Description | Published |
20080279203 | Method of Operating a Node in a Communications Network - There is described a method of operating a node in a ring network. A first loop avoidance protocol, for example, a Spanning Tree Protocol (STP) is run at the node together with a protocol adaptation process. The protocol adaptation process performs processes that enable the first loop avoidance protocol to run over a second loop avoidance protocol, for example, the Ethernet Ring Protection Protocol (ERP), operating in the ring. This makes it easier for network operators to incorporate in networks running STP, equipment manufactured to run ERP. | 11-13-2008 |
20090245141 | Ethernet Ring Protection-resource Usage Optimization Methods - Reconfiguring a ring network having N nodes and S spans that prevents a maximum usage parameter to be exceeded. The network is configured by selecting a span as a protection span to remain idle. An effect of the configuration on the network that causes the network to exceed a maximum usage parameter is calculated. The network is reconfigured by selecting a different span as a protection span to remain idle based on a result of the step of calculating that a previous span selected as the protection span to remain idle causes the network to exceed a maximum usage parameter such that the maximum usage parameter of the reconfigured network is not exceeded. | 10-01-2009 |
20090296569 | Ring network and method for automatic protection swicthing - A method for automatic protection switching in a ring network detects a link failure at a first interface of a node, generates a first link down message and sends the first link down message along the second direction of the ring network. Upon generation or receipt of the first link down message by the redundancy manager, the redundancy manager is unblocked such that non-control frames of the at least one automatic protection switching domain are no longer blocked by the redundancy manager. Upon generation or receipt of the first link down message by one of the nodes, the node having at least one entry assigning an address to the second interface IF | 12-03-2009 |