ES2325844A1 - Generator for wind turbine, comprising independent windings - Google Patents
Generator for wind turbine, comprising independent windings Download PDFInfo
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- ES2325844A1 ES2325844A1 ES200700898A ES200700898A ES2325844A1 ES 2325844 A1 ES2325844 A1 ES 2325844A1 ES 200700898 A ES200700898 A ES 200700898A ES 200700898 A ES200700898 A ES 200700898A ES 2325844 A1 ES2325844 A1 ES 2325844A1
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- generator
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- wind turbine
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- 238000004804 winding Methods 0.000 title claims abstract description 44
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F03D11/00—
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/34—Generators with two or more outputs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/48—Generators with two or more outputs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/02—Details of the control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/06—Machines characterised by the presence of fail safe, back up, redundant or other similar emergency arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
- H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Generador para turbina eólica con bobinados independientes.Wind turbine generator with windings independent.
La presente invención se encuentra en el campo de las turbinas eólicas y su acoplamiento a la red eléctrica mediante el sistema de accionamiento eléctrico correspondiente; más específicamente, se refiere a un sistema de accionamiento eléctrico, convertidor y generador, para conectar la turbina eólica a la red eléctrica. También se refiere al diseño de las disposiciones de bobinado en el generador en conexión con un sistema convertidor de este tipo.The present invention is in the field of wind turbines and their coupling to the power grid by the corresponding electric drive system; plus specifically, it refers to a drive system electric, converter and generator, to connect the wind turbine to the power grid. It also refers to the design of the winding arrangements in the generator in connection with a Converter system of this type.
El rotor o álabes de turbinas eólicas están conectados directa o indirectamente mediante una caja de cambios a un generador AC, que a su vez está conectado con la red, normalmente mediante un transformador elevador. Por ejemplo, en turbinas eólicas grandes, por encima de 100-150 kW, el voltaje (tensión) generado por la turbina se encuentra normalmente entre 400 a 1000 V AC trifásica; la corriente se envía posteriormente a través del transformador elevador para elevar el voltaje a aproximadamente entre 10 y 36 kV, en función de la norma en la red eléctrica local.The rotor or blades of wind turbines are connected directly or indirectly through a gearbox to an AC generator, which in turn is connected to the network, normally by means of an elevator transformer. For example in large wind turbines, above 100-150 kW, the voltage (voltage) generated by the turbine is found normally between 400 to 1000 V AC three phase; the current is sent subsequently through the elevator transformer to raise the voltage at approximately 10 to 36 kV, depending on the standard in the local power grid.
Cuando el generador AC es parte de una turbina eólica con velocidad de rotor variable, dicho generador AC se conecta a la red eléctrica a través de un convertidor electrónico de energía.When the AC generator is part of a turbine wind with variable rotor speed, said AC generator is connect to the mains through an electronic converter of energy
La patente estadounidense US-7042110-B2 da a conocer una turbina eólica con velocidad variable que emplea un rotor conectado a una multiplicidad de generadores síncronos con campo bobinado o rotores de imanes permanentes. Un rectificador pasivo y un inversor se emplean para transferir energía de vuelta a la red. Una unidad de control de turbina (TCU, turbine control unit) ordena un par de torsión de generador necesario basado en potencia disponible y velocidad de rotor de los inversores de turbina. El par de torsión se controla regulando la corriente continua DC mediante el control del inversor.US-7042110-B2 discloses a wind turbine with variable speed that employs a rotor connected to a multiplicity of synchronous generators with winding field or permanent magnet rotors. A passive rectifier and an inverter are used to transfer power back to the grid. A turbine control unit (TCU) orders a necessary generator torque based on available power and rotor speed of the turbine inverters. The torque is controlled by regulating DC direct current by inverter control.
Todas las unidades de convertidor electrónico de potencia están interconectadas, y también tiene una conexión común con el generador, presentando solamente un conjunto de bobinados para todas las unidades de convertidor. Esto implica un problema con respecto a las corrientes de circulación que fluyen entre las unidades de convertidor, y una pérdida subsiguiente de energía entre las unidades de convertidor. Es decir, estas unidades de convertidor están produciendo corrientes de circulación en el camino a tierra y en el sistema convertidor, debido al circuito de enlace DC flotante en el sistema convertidor de fuente de voltaje. Por tanto, el tamaño del sistema convertidor ha de aumentarse para manejar estas corrientes de circulación adicionales.All electronic converter units of power are interconnected, and also has a common connection with the generator, presenting only a set of windings for all converter units. This implies a problem. with respect to the circulation currents that flow between the converter units, and a subsequent loss of energy between the converter units. That is, these units of converter are producing circulation currents in the road to ground and in the converter system, due to the circuit of floating DC link in the voltage source converter system. Therefore, the size of the converter system must be increased to handle these additional circulation currents.
En el caso de un falta en un convertidor, dicha falta afectará y destruirá quizá el resto del sistema convertidor si las unidades de convertidor están conectadas directamente (por cables) o indirectamente (magnéticamente).In the case of a fault in a converter, said missing will affect and maybe destroy the rest of the converter system if the converter units are directly connected (by cables) or indirectly (magnetically).
La invención se refiere a un sistema de accionamiento eléctrico para una turbina eólica según la reivindicación 1. En las reivindicaciones dependientes se definen realizaciones preferidas del sistema de accionamiento eléctrico.The invention relates to a system of electric drive for a wind turbine according to the claim 1. In the dependent claims defined Preferred embodiments of the electric drive system.
La invención se refiere a un sistema de accionamiento eléctrico para acoplar un generador de una turbina eólica a una red, que comprende un sistema de convertidor que a su vez comprende N1 módulos convertidores conectados en paralelo, en el que N1>1; según un primer aspecto de la invención, dichos dos o más módulos convertidores están conectados en cada caso en un conjunto independiente de bobinados o arrollamientos de generador; presentándose N2 conjuntos de bobinados de generador y N1= N2, de manera que el generador comprende tantos conjuntos de bobinados como módulos convertidores; y cada uno de los dichos N2 conjuntos de bobinados se sitúa en una sección limitada del estator de la turbina eólica. De esta manera, cada conjunto de bobinados está desacopla magnéticamente de los otros conjuntos de bobinados.The invention relates to a system of electric drive to couple a turbine generator wind to a network, which comprises a converter system that It also includes N1 converter modules connected in parallel, in the one that N1> 1; according to a first aspect of the invention, said two or more converter modules are connected in each case in a independent set of windings or generator windings; presenting N2 sets of generator windings and N1 = N2, of so that the generator comprises so many sets of windings as converter modules; and each of the said N2 sets of windings is located in a limited section of the stator of the wind turbine. In this way, each set of windings is magnetically decouple the other winding sets.
Así, los dos o más módulos convertidores son totalmente independientes unos de otros, no existiendo prácticamente ningún acoplamiento magnético entre ellos, y por tanto evitando las corrientes de circulación, que es un problema en los sistemas convertidores paralelos en la técnica anterior.Thus, the two or more converter modules are totally independent of each other, not existing virtually no magnetic coupling between them, and by both avoiding circulation currents, which is a problem in parallel converter systems in the prior art.
Por tanto, con esta configuración modular del sistema convertidor, si uno de los módulos convertidores no funciona, no implica que el acoplamiento del generador a la red eléctrica esté caído, y la turbina eólica puede continuar funcionado.Therefore, with this modular configuration of the converter system, if one of the converter modules does not works, does not imply that the coupling of the generator to the network electric is down, and the wind turbine can continue it worked
Es decir, si el sistema de accionamiento eléctrico tiene por ejemplo tres módulos convertidores, el generador tiene tres conjuntos de bobinados aislados para cada fase, y cada módulo convertidor está conectado a cada conjunto de bobinados en el generador, no existiendo ninguna conexión directa entre los módulos convertidores. Así, en el caso de un generador trifásico, tendrá un total de nueve bobinados aislados. Por tanto, cada módulo convertidor está totalmente aislado de los otros módulos convertidores.That is, if the drive system electric has for example three converter modules, the generator has three sets of insulated windings for each phase, and each converter module is connected to each set of windings in the generator, there is no direct connection between the converter modules. Thus, in the case of a generator Three phase, you will have a total of nine isolated windings. So, Each converter module is totally isolated from the others converter modules.
Según una realización preferida, cada conjunto de bobinados de generador se forma mediante dos o más subconjuntos de bobinados, presentando cada uno de dichos N2 conjuntos de bobinados dos pares de polos. De esta manera, existen al menos dos pares de polos por conjunto de bobinados, es decir un total de al menos 2xN2 pares de polos. Por tanto, con esta disposición de bobinado con dobles pares de polos se consigue un equilibrio mecánico de las fuerzas radiales del generador. Es decir, no hay fuerzas de desequilibrio en el generador o cojinetes.According to a preferred embodiment, each set of generator windings is formed by two or more subsets of windings, each of said N2 sets of winding two pairs of poles. In this way, there are at least two pairs of poles per set of windings, that is a total of at minus 2xN2 pairs of poles. Therefore, with this provision of winding with double pairs of poles a balance is achieved mechanical of the radial forces of the generator. That is, there is no imbalance forces in the generator or bearings.
Por tanto, con la realización preferida con dobles pares de polos (2xN2) y la configuración modular del convertidor, las fuerzas se equilibran, lo que es especialmente importante si solamente están funcionando algunos de los módulos convertidores.Therefore, with the preferred embodiment with double pairs of poles (2xN2) and the modular configuration of the converter, the forces are balanced, which is especially important if only some of the modules are working converters
De esta manera, los dos o más módulos convertidores son totalmente independientes unos de otros, no existiendo acoplamiento magnético entre ellos, y reduciendo por tanto las corrientes de circulación, que es un problema en los sistemas convertidores paralelos de la técnica anterior.In this way, the two or more modules converters are totally independent of each other, not existing magnetic coupling between them, and reducing by both circulation currents, which is a problem in parallel converter systems of the prior art.
Según una realización preferida de la invención, el sistema convertidor también incluye medios de conmutación para conmutar uno o más de los módulos convertidores, siendo posible de esta manera desconectar el módulo convertidor que ha fallado. Por tanto, aumenta la disponibilidad global de la turbina eólica.According to a preferred embodiment of the invention, The converter system also includes switching means for switch one or more of the converter modules, being possible to this way disconnect the converter module that has failed. By therefore, the global availability of the wind turbine increases.
Preferiblemente, cada módulo convertidor comprende un inversor de generador y un inversor de red; de esta manera, es posible incluir algoritmos de control para el convertidor de generador.Preferably, each converter module it comprises a generator inverter and a network inverter; this way, it is possible to include control algorithms for the generator converter.
Según la presente invención, en el caso de fallo en un módulo convertidor, todo el sistema de control distribuye la demanda de energía total en los demás módulos convertidores, y limita la energía máxima a, por ejemplo, 2/3 de la energía total (si un sistema de tres falla): S_tot=((N1-F)/N1)*S_max, siendo N1 el número de módulos convertidores y F es el número de módulos convertidores que han fallado.According to the present invention, in the case of failure in a converter module, the entire control system distributes the total energy demand in the other converter modules, and limit the maximum energy to, for example, 2/3 of the total energy (if a system of three fails): S_tot = ((N1-F) / N1) * S_max, where N1 is the number of converter modules and F is the number of converter modules that They have failed.
Esta realización preferida consigue mejores características mecánicas en el generador resultante, junto con una mejor calidad en la potencia disponible, como ya se ha mencionado anteriormente.This preferred embodiment gets better mechanical characteristics in the resulting generator, along with a better quality in available power, as already mentioned previously.
Preferiblemente, el sistema de accionamiento
eléctrico comprende además medios de control para
habilitar/desha-
bilitar el funcionamiento de al menos uno de
dichos N1 módulos convertidores en respuesta a un parámetro
relacionado con la cantidad de energía eléctrica suministrada a la
red.Preferably, the electric drive system further comprises control means to enable / disable
to allow the operation of at least one of said N1 converter modules in response to a parameter related to the amount of electric power supplied to the network.
Para completar la descripción y para proporcionar una mejor comprensión de la invención, se proporciona un conjunto de dibujos. Dichos dibujos forman una parte integrante de la descripción e ilustran realizaciones preferidas de la invención, que no deberían interpretarse como limitativas del alcance de la invención, sino sólo como ejemplos de cómo puede ponerse en práctica la invención. Los dibujos comprenden las siguientes figuras:To complete the description and to provide a better understanding of the invention, is provided A set of drawings. These drawings form an integral part of the description and illustrate preferred embodiments of the invention, which should not be construed as limiting the scope of the invention, but only as examples of how it can put the invention into practice. The drawings include the following figures:
La figura 1 ilustra un parte de un sistema de accionamiento eléctrico de un generador de turbina eólica según una primera realización de la invención.Figure 1 illustrates a part of a system of electric drive of a wind turbine generator according to a First embodiment of the invention.
La figura 2, ilustra otro posible diseño de un parte de un sistema de accionamiento eléctrico de un sistema generador de turbina eólica, incluyendo una disposición de bobinado preferida.Figure 2 illustrates another possible design of a part of an electric drive system of a system wind turbine generator, including a winding arrangement preferred.
La figura 3 es una vista ampliada de un generador y su disposición de bobinado según la invención.Figure 3 is an enlarged view of a generator and its winding arrangement according to the invention.
La figura 4 es un diagrama de una realización posible para un módulo convertidor mediante el cual la turbina eólica se conecta a la red.Fig. 4 is a diagram of one embodiment. possible for a converter module through which the turbine Wind connects to the grid.
La figura 1 muestra un generador 1 síncrono de imanes permanente PMSG (permanent magnet synchronous generator) con tres fases, que genera la energía eléctrica de salida o la entrada del par de torsión, presentando el generador tres conjuntos de bobinados 20, 21, 22, conectados respectivamente de manera independiente a uno de tres convertidores 10 4Q paralelos que forman un sistema convertidor que está directamente acoplado a la red principal.Figure 1 shows a permanent magnet synchronous generator PMSG 1 ( permanent magnet synchronous generator ) with three phases, which generates the electrical output or torque input, the generator presenting three sets of windings 20, 21, 22, respectively connected independently to one of three parallel converters 10 4Q that form a converter system that is directly coupled to the main network.
El generador también puede ser un generador síncrono, un generador síncrono sin escobillas o un generador asíncrono.The generator can also be a generator synchronous, a synchronous brushless generator or a generator asynchronous
Cada módulo convertidor 10 está conectado de manera separada a un conjunto de bobinados en el generador 20, 21, 22, y cada conjunto de bobinados de generador se desacopla magnéticamente de los demás. Para garantizar este desacoplamiento, cada conjunto de bobinados se coloca en sus propias ranuras del generador (por motivos de claridad, no se han representado las ranuras en el dibujo).Each converter module 10 is connected to separate way to a set of windings in the generator 20, 21, 22, and each set of generator windings is decoupled magnetically from others. To ensure this decoupling, each set of windings is placed in its own grooves of the generator (for reasons of clarity, the slots in the drawing).
En la realización preferida mostrada en la figura 2, el generador 1' se conecta a tres módulos convertidores 10 conectados en paralelo, presentando cada uno dos secciones para igualar las fuerzas, es decir, hay un total de seis secciones. Cada conjunto de bobinados en el generador 1' está dispuesto en dos sectores enfrentados del generador formando dos subconjuntos de bobinados 20- 22', 21-21' y 22-20', y cada subconjunto de bobinados tiene un par de polos 30 para garantizar que las fuerzas magnéticas se igualan, especialmente en operaciones en los que solamente algunos de los módulos de convertidor están funcionando.In the preferred embodiment shown in the Figure 2, the 1 'generator is connected to three converter modules 10 connected in parallel, each presenting two sections for match the forces, that is, there are a total of six sections. Every set of windings in the generator 1 'is arranged in two facing sectors of the generator forming two subsets of windings 20-22 ', 21-21' and 22-20 ', and each subset of windings has a pair of 30 poles for ensure that the magnetic forces equalize, especially in operations in which only some of the modules of Converter are working.
La figura 3 es una vista ampliada de la realización preferida del generador 1' (mostrado en la figura 2) y su disposición de bobinado según la invención.Figure 3 is an enlarged view of the preferred embodiment of the generator 1 '(shown in Figure 2) and its winding arrangement according to the invention.
Tal como se muestra individualmente en la figura 4, en cualquier caso, cada módulo convertidor 10 comprende un inversor de generador 11 y un inversor de red 12.As shown individually in the figure 4, in any case, each converter module 10 comprises a generator inverter 11 and a network inverter 12.
Los inversores de generador convierten las corrientes (energía) de generador CA del voltaje y frecuencia de generador real a una corriente CC (energía). Para mantener estable el voltaje de enlace CC, diversos condensadores 13 se conectan en paralelo. Los inversores de generador pueden ser un convertidor activo o pasivo.Generator inverters convert the AC generator (energy) currents of the voltage and frequency of real generator at a DC current (energy). To keep stable The DC link voltage, various capacitors 13 are connected in parallel. Generator inverters can be a converter active or passive.
La energía del generador se transmite a la red mediante el inversor 12 de red, que convierte el voltaje CC a un voltaje y frecuencia fijos; el voltaje y frecuencia de red. Mediante el control del voltaje de enlace CC del sistema convertidor el inversor de red controla el flujo de energía hacia el enlace CC, y también la demanda de energía reactiva desde la turbina eólica.Generator energy is transmitted to the network via the network inverter 12, which converts the DC voltage to a fixed voltage and frequency; network voltage and frequency By controlling the system DC link voltage converter the network inverter controls the flow of energy to the DC link, and also the demand for reactive energy from the wind turbine.
Los convertidores de red están conectados a un transformador reductor 14 de red respectivo (la inductancia de arranque para el inversor de red).The network converters are connected to a respective network reducer transformer 14 (the inductance of Startup for the network inverter).
El sistema convertidor puede conectarse a la red mediante un transformador que transforma el nivel de voltaje principal de 10 a 36 KV al sistema de bajo voltaje en la turbina eólica, que es normalmente de 690 V.The converter system can connect to the network by a transformer that transforms the voltage level Main 10 to 36 KV to the low voltage system in the turbine wind, which is normally 690 V.
Un conmutador separa la turbina eólica de la red, y protege la turbina eólica en el caso de un cortocircuito en el transformador.A switch separates the wind turbine from the network, and protects the wind turbine in the event of a short circuit in The transformer
Algunas de las ventajas de este sistema son que la eficiencia del generador siempre es muy alta, y también que el sistema puede continuar proporcionando, por ejemplo, dos/tercios de la energía nominal si uno de los tres convertidores 4Q tiene una falta.Some of the advantages of this system are that the efficiency of the generator is always very high, and also that the system can continue to provide, for example, two / thirds of the nominal power if one of the three 4Q converters has a lack.
Una desventaja de este sistema es que toda la energía nominal ha de manejarse por los convertidores 4Q, y las pérdidas de convertidor son por tanto relativamente altas. La fiabilidad de un convertidor individual es relativamente baja, por tanto, es una ventaja conectar más módulos convertidores en paralelo.A disadvantage of this system is that all the nominal energy must be handled by 4Q converters, and the Converter losses are therefore relatively high. The reliability of an individual converter is relatively low, for therefore, it is an advantage to connect more converter modules in parallel.
Tal como se indica anteriormente, la presente invención se refiere a un sistema de accionamiento eléctrico para una turbina eólica y a una disposición de bobinado para un generador de la misma. Ha de entenderse que la descripción anterior es un ejemplo de los principios de la invención y no limita la invención a las realizaciones ilustradas.As indicated above, this invention relates to an electric drive system for a wind turbine and a winding arrangement for a generator of it. It should be understood that the above description It is an example of the principles of the invention and does not limit the invention to the illustrated embodiments.
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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ES200700898A ES2325844B1 (en) | 2007-03-30 | 2007-03-30 | GENERATOR FOR WIND TURBINE WITH INDEPENDENT WINDINGS. |
PCT/ES2008/070059 WO2008119864A1 (en) | 2007-03-30 | 2008-03-25 | Generator for wind turbine, comprising independent windings |
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ES200700898A ES2325844B1 (en) | 2007-03-30 | 2007-03-30 | GENERATOR FOR WIND TURBINE WITH INDEPENDENT WINDINGS. |
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ES2325844A1 true ES2325844A1 (en) | 2009-09-21 |
ES2325844B1 ES2325844B1 (en) | 2010-06-25 |
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ES200700898A Expired - Fee Related ES2325844B1 (en) | 2007-03-30 | 2007-03-30 | GENERATOR FOR WIND TURBINE WITH INDEPENDENT WINDINGS. |
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WO (1) | WO2008119864A1 (en) |
Cited By (4)
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US20120217746A1 (en) * | 2011-02-25 | 2012-08-30 | Erik Groendahl | Wind turbine |
EP3579371A1 (en) * | 2018-06-08 | 2019-12-11 | Siemens Gamesa Renewable Energy A/S | Dual transformer turbine |
EP3599704A1 (en) * | 2018-07-27 | 2020-01-29 | Ge Aviation Systems Llc, Inc. | Stator assembly |
CN110784048A (en) * | 2018-07-27 | 2020-02-11 | 通用电气航空系统有限责任公司 | Stator assembly |
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WO2010025560A1 (en) | 2008-09-03 | 2010-03-11 | Exro Technologies Inc. | Power conversion system for a multi-stage generator |
EP2228897B1 (en) | 2009-03-11 | 2012-07-04 | Vercet LLC | Generator power conditioning |
WO2010103304A1 (en) * | 2009-03-10 | 2010-09-16 | C-Power Limited | Generator power conditioning |
BR112012004808A2 (en) | 2009-09-03 | 2018-03-13 | Exro Tech Inc | variable coil configuration system, apparatus and method |
ES2383430B1 (en) * | 2009-09-21 | 2013-05-07 | Gamesa Innovation & Technology, S.L | PROCEDURE AND CONTROL SYSTEM FOR WIND TURBINE GENERATORS |
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ES2391207B2 (en) * | 2012-08-30 | 2013-07-10 | Universidad De La Rioja | Procedure and asynchronous generator device for hydroelectric power generation |
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MX2019012806A (en) | 2017-05-23 | 2020-01-20 | Dpm Tech Inc | Variable coil configuration system control, apparatus and method. |
CA3137550C (en) | 2019-04-23 | 2024-05-21 | Dpm Technologies Inc. | Fault tolerant rotating electric machine |
WO2022232904A1 (en) | 2021-05-04 | 2022-11-10 | Exro Technologies Inc. | Battery control systems and methods |
JP2024518405A (en) | 2021-05-13 | 2024-05-01 | エクスロ テクノロジーズ インク. | Method and apparatus for driving coils of a polyphase electric machine - Patents.com |
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US4550267A (en) * | 1983-02-18 | 1985-10-29 | Sundstrand Corporation | Redundant multiple channel electric motors and generators |
US20060103137A1 (en) * | 2000-08-14 | 2006-05-18 | Aloys Wobben | Wind power installation |
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US4550267A (en) * | 1983-02-18 | 1985-10-29 | Sundstrand Corporation | Redundant multiple channel electric motors and generators |
US20060103137A1 (en) * | 2000-08-14 | 2006-05-18 | Aloys Wobben | Wind power installation |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120217746A1 (en) * | 2011-02-25 | 2012-08-30 | Erik Groendahl | Wind turbine |
US8803348B2 (en) * | 2011-02-25 | 2014-08-12 | Siemens Aktiengesellschaft | Wind turbine |
EP3579371A1 (en) * | 2018-06-08 | 2019-12-11 | Siemens Gamesa Renewable Energy A/S | Dual transformer turbine |
WO2019233974A1 (en) * | 2018-06-08 | 2019-12-12 | Siemens Gamesa Renewable Energy A/S | Dual transformer turbine |
US11355934B2 (en) | 2018-06-08 | 2022-06-07 | Siemens Gamesa Renewable Energy A/S | Dual transformer turbine |
EP3599704A1 (en) * | 2018-07-27 | 2020-01-29 | Ge Aviation Systems Llc, Inc. | Stator assembly |
CN110784048A (en) * | 2018-07-27 | 2020-02-11 | 通用电气航空系统有限责任公司 | Stator assembly |
US11211836B2 (en) | 2018-07-27 | 2021-12-28 | Ge Aviation Systems Llc | Stator assembly |
Also Published As
Publication number | Publication date |
---|---|
ES2325844B1 (en) | 2010-06-25 |
WO2008119864A1 (en) | 2008-10-09 |
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