WO2015177388A1 - Device for controlling power in an electric network - Google Patents
Device for controlling power in an electric network Download PDFInfo
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- WO2015177388A1 WO2015177388A1 PCT/ES2015/070360 ES2015070360W WO2015177388A1 WO 2015177388 A1 WO2015177388 A1 WO 2015177388A1 ES 2015070360 W ES2015070360 W ES 2015070360W WO 2015177388 A1 WO2015177388 A1 WO 2015177388A1
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- power
- control
- voltage
- electric network
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1878—Arrangements for adjusting, eliminating or compensating reactive power in networks using tap changing or phase shifting transformers
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Definitions
- the present invention relates to a network control device intended for three-phase and single-phase installations. More specifically, the invention is framed in the field of control of the electrical network, especially in tasks of stabilization of the grid voltage, filtering of electrical noises, to avoid voltage spikes, and attenuation of transient overcurrent peaks.
- Voltage variations act differently on different types of electrical equipment. For example, in capacitor banks used for reactive power compensation, it causes transient processes that lead to capacitor overload by current and, in cases, due to voltage, as a result of which the battery may be out of service, where the period it takes for the battery to go from service to out of service may be more or less long depending on the magnitude of the disturbance : The larger the magnitude, the shorter the period.
- the present invention relates to a power control device of the power grid on an installation whose load comes from said network and will be variable, which modifies at all times the parameters thereof.
- the control device described here has a stage of reading and analysis of the network, and a stage of action on the power circuits, which are responsible for modifying the parameters of the network, adjusting it volt to volt and not by programmed steps .
- These circuits can consist of at least one electromagnetic coil and a set of power electronics devices, thus reducing the volume used and making it applicable to any type of receivers.
- the device object of the invention allows to control the totality of the intensity applied by acting on a percentage thereof, allowing the possible receiving devices that feed on it to consume the power that they really have to consume, when they deliver a certain power, and thus extend their useful life.
- the purpose of the present invention is to be able to adjust the mains voltage to a much more stable range with the possibility of adjusting the grid voltage with a very small margin of error, in the order of hundreds of millivolts.
- the power network power control device of the invention has two main elements, a reactance and a power control module.
- the reactance comprises: - a secondary winding that is connected in series with a load of the installation and with an output of the mains, and a primary winding with several inputs on which the energy flow is controlled with the power stage; while the power control module comprises at least one control element connected for its power at the output of the power grid and which presents the necessary signals to control the power module that will modify the parameters of the power grid.
- the device described here makes use of at least one "booster" type stabilizer and a semiconductor-based power control stage that, once installed, can check and manage the network input of any installation, to subsequently control it and adjust to the indicated parameters.
- a recommended option would also be based on the possibility of adding an output control component to check and check the output of the device going to the facility; so that the circuit operation can be adjusted or modified, or even canceled, if the control component shows data that requires it, such as low values that are not useful for the electrical installation at the input of which The output of the device object of the invention is connected.
- FIG. 1 Shows a diagram of the "booster" type stabilizer.
- FIG. 2 Shows a circuit diagram based on semiconductors used for management and control.
- FIG. 3 Shows a graph showing the regulation of applied power. PREFERRED EMBODIMENT OF THE INVENTION
- the power control device (1) in the electrical network object of The invention makes use of a "booster" type stabilizer circuit as shown in Figure 1.
- the total current of a load does not circulate through the switching elements (which in a preferred implementation are Triacs), but only a proportional fraction of it circulates.
- an output voltage regulation (8) is achieved by controlling the direction of the energy flow in the primary winding .
- the transformer's own inductance can act as an attenuation factor in reducing possible line noise and transient peaks.
- switching is used to periodically cut the sinusoidal voltage in smaller sectors, which allows, finally, to regulate the power applied to the load precisely.
- this process is achieved, as shown in Figure 3, by cutting the wave, so that each network sine wave corresponds to a 180 ° (360 ° for a complete cycle) conduction, so that, delaying the connection from 180 ° to 0 or it is possible to regulate the power applied to the load from 0 to 100%.
- This delay value at the phase angle is called the "delay angle” and is normally indicated by the letter ⁇ (alpha).
- ⁇ alpha
- the «driving angle which corresponds to the value 180 ° -a.
- the management device (1) described here is composed of at least one reactance that can be unipolar or transformer-shaped, with a transformation ratio from 2/1 to 30/1, depending on the need, and whose secondary winding is arranged in series with a load of the electrical installation in which the device (1) is installed, and with a primary winding comprising several inputs and which can comprise a series of connections that divides the winding into There are sections.
- the system will regulate the effect on the installation depending on how the power electronics elements (2) act on these inputs.
- This control stage can adopt various topologies depending on the specific need of each installation, whose common function is to regulate the energy flow in the primary of the transformer, which is connected to the control stage in closed loop (7).
- the power module has a control signal for each device of a phase, so the control and regulation stage can act independently on each of the phases without altering the remaining ones.
- Said module may in turn have sub-stages that allow bi-directional energy flow to be controlled, obtaining a reduction or a voltage rise at the output as required.
- the control module (2) can be found associated with a shutdown element (9) intended to turn off the device (1) or the control module (2) when it is determined that the voltage is sufficiently above or below respective predetermined upper and lower voltage thresholds.
- a series of filters against electrical noise (3) and a series of filters against transient peaks (4), filters (3,4) that are arranged in parallel and respectively connected can be arranged to neutral (5) and to earth (6).
- the device (1) has been configured as a transformer and comprises at least one coil electromagnetic, presenting a transformation ratio between 2/1 and 30/1.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention relates to a network control device intended for three-phase and single-phase installations, including a reactance and a power control module. The reactance comprises: a secondary winding that is connected in series with a load of the installation and with an output of the electric network; and a primary winding with multiple inputs, on which the flow of energy is controlled with the power stage. The control module comprises at least one control element connected so as to supply the output of the electric network and having the signals required to control the power module that modifies the parameters of the electric network.
Description
DISPOSITIVO DE CONTROL DE POTENCIA EN RED ELÉCTRICA POWER CONTROL DEVICE IN ELECTRICAL NETWORK
D E S C R I P C I Ó N OBJETO DE LA INVENCIÓN D E S C R I P C I O N OBJECT OF THE INVENTION
La presente invención se refiere a un dispositivo de control de red destinado a instalaciones trifásicas y monofásicas. Más concretamente, la invención se enmarca en el campo de control de red eléctrica, especialmente en tareas de estabilización de la tensión de red, filtrado de ruidos eléctricos, para evitar picos de tensión, y atenuación de picos de sobre-intensidad transitoria. ANTECEDENTES DE LA INVENCIÓN The present invention relates to a network control device intended for three-phase and single-phase installations. More specifically, the invention is framed in the field of control of the electrical network, especially in tasks of stabilization of the grid voltage, filtering of electrical noises, to avoid voltage spikes, and attenuation of transient overcurrent peaks. BACKGROUND OF THE INVENTION
La sociedad y la industria presentan un gran número de equipamientos electrónicos de diversas generaciones, como aquellos vinculados al control de procesos, accionamiento, procesamiento de datos, comunicaciones y transmisión de información, dispositivos domésticos, comerciales y de entretenimiento. Society and industry present a large number of electronic equipment of various generations, such as those linked to process control, operation, data processing, communications and information transmission, domestic, commercial and entertainment devices.
Por otra parte, el uso extendido y progresivo de fuentes alternativas de energía renovable, como la eólica y la solar, hace uso de generadores con inversores con esquemas híbridos en muchos casos conectados a las redes de distribución. El proceso de conversión necesario conlleva siempre una eventual generación de armónicos. On the other hand, the widespread and progressive use of alternative sources of renewable energy, such as wind and solar, makes use of generators with inverters with hybrid schemes in many cases connected to distribution networks. The necessary conversion process always involves an eventual generation of harmonics.
Una insuficiente calidad en el suministro de la energía eléctrica afecta, en mayor o menor grado, a otras tecnologías y procesos industriales, donde las pérdidas económicas que se generan por este concepto pueden llegar a ser muy importantes. En este sentido, con parámetros de tensión diferentes a los
nominales o de trabajo, ocurre una aceleración del envejecimiento del aislamiento de los equipos eléctricos como consecuencia de un calentamiento intensivo y, en una serie de casos, como resultado del reforzamiento de procesos de ionización; todo ello se deriva en una intensificación de las tasas de averías. An insufficient quality in the supply of electric energy affects, to a greater or lesser extent, other technologies and industrial processes, where the economic losses generated by this concept can become very important. In this sense, with different voltage parameters than nominal or working, there is an acceleration of the aging of the insulation of electrical equipment as a result of intensive heating and, in a series of cases, as a result of the strengthening of ionization processes; All this results in an intensification of the failure rates.
Asimismo, las desviaciones de tensión eléctrica conllevan un aumento del calentamiento de motores eléctricos con momentos constantes de carga (carga tipo transportador, elevador etc.), acelerando el envejecimiento del aislamiento, y un derroche de energía. Por ejemplo, una elevación de la tensión por encima de la tensión nominal conlleva una disminución del tiempo de vida útil de lámparas y un mayor consumo que puede llevar a averías o incremento en los costos de operación y mantenimiento que, al final, redundan en el cliente final con cuantiosas pérdidas. Also, electric voltage deviations lead to an increase in the heating of electric motors with constant moments of load (load type conveyor, elevator etc.), accelerating the aging of the insulation, and a waste of energy. For example, a rise in voltage above the nominal voltage leads to a decrease in the lifetime of lamps and a higher consumption that can lead to breakdowns or an increase in operation and maintenance costs that, in the end, result in End customer with large losses.
Por otra parte, la asimetría en la tensión también conlleva al calentamiento adicional del equipamiento de fuerza y disminuye su vida útil y aumenta el consumo. Este defecto también influye negativamente en el funcionamiento de algunos esquemas de protecciones por relés, provocando operaciones erráticas y provocando un mal funcionamiento de equipos alimentados por energía eléctrica. La aparición de variaciones rápidas en la asimetría de las tensiones trifásicas conllevan a la variación de los momentos de torque en los motores eléctricos, lo que es causa de aparición de esfuerzos adicionales en las cabezas de las bobinas de las máquinas, su vibración y tensiones de fatiga en elementos mecánicos constructivos del propio motor y el accionamiento, lo que trae como resultado una disminución de su tiempo de vida y considerables picos de consumo. On the other hand, asymmetry in tension also leads to additional heating of the force equipment and decreases its useful life and increases consumption. This defect also negatively influences the operation of some relay protection schemes, causing erratic operations and causing a malfunction of equipment powered by electrical energy. The appearance of rapid variations in the asymmetry of the three-phase voltages leads to the variation of the torque moments in the electric motors, which is the cause of the appearance of additional efforts on the heads of the machine coils, their vibration and tensions of fatigue in mechanical construction elements of the motor itself and the drive, which results in a decrease in its life time and considerable consumption peaks.
Las variaciones de la tensión actúan de diferente manera en los distintos tipos de equipamiento eléctrico. Por ejemplo, en las baterías de condensadores utilizados para la compensación de potencia reactiva, provoca procesos transitorios que conducen a la sobrecarga de los condensadores por corriente
y, en casos, por tensión, como resultado de lo cual la batería puede quedar fuera de servicio, donde el período que tarda la batería en pasar de servicio a fuera de servicio puede ser más o menos largo en función de la magnitud de la perturbación: cuanto mayor es la magnitud, menor es el período. Voltage variations act differently on different types of electrical equipment. For example, in capacitor banks used for reactive power compensation, it causes transient processes that lead to capacitor overload by current and, in cases, due to voltage, as a result of which the battery may be out of service, where the period it takes for the battery to go from service to out of service may be more or less long depending on the magnitude of the disturbance : The larger the magnitude, the shorter the period.
En el caso de los motores, las variaciones de tensión conducen al calentamiento adicional y a la variación del momento con respecto del eje. Los bajones de tensión para los motores asincrónicos tienden a frenarlos y a necesitar de eventuales procesos de re-arranque, pudiendo llegar a situaciones de disparo de protecciones, sobretodo, cuando se trabaja con grupos de motores simultáneamente. In the case of motors, voltage variations lead to additional heating and moment variation with respect to the axis. Voltage dips for asynchronous motors tend to slow them down and require any re-starting processes, and may lead to situations of protection tripping, especially when working with motor groups simultaneously.
DESCRIPCIÓN DE LA INVENCIÓN La presente invención se refiere a un dispositivo de control de energía de la red eléctrica sobre una instalación cuya carga viene de dicha red y será variable, lo que modifica en todo momento los parámetros de la misma. El dispositivo de control aquí descrito dispone de una etapa de lectura y análisis de la red, y una etapa de actuación sobre los circuitos de potencia, los cuales se encargan de modificar los parámetros de la red, ajusfándola voltio a voltio y no por escalones programados. Estos circuitos pueden componerse de al menos una bobina electromagnética y un juego de dispositivos de electrónica de potencia, reduciendo así el volumen utilizado y haciéndolo aplicable a cualquier tipo de receptores. DESCRIPTION OF THE INVENTION The present invention relates to a power control device of the power grid on an installation whose load comes from said network and will be variable, which modifies at all times the parameters thereof. The control device described here has a stage of reading and analysis of the network, and a stage of action on the power circuits, which are responsible for modifying the parameters of the network, adjusting it volt to volt and not by programmed steps . These circuits can consist of at least one electromagnetic coil and a set of power electronics devices, thus reducing the volume used and making it applicable to any type of receivers.
El dispositivo objeto de la invención permite controlar la totalidad de la intensidad aplicada mediante actuación sobre un porcentaje de la misma, permitiendo que los eventuales aparatos receptores que se alimentan de ésta consuman la potencia que realmente tienen que consumir, cuando entregan una determinada potencia, y alargar así la vida útil de los mismos. The device object of the invention allows to control the totality of the intensity applied by acting on a percentage thereof, allowing the possible receiving devices that feed on it to consume the power that they really have to consume, when they deliver a certain power, and thus extend their useful life.
El propósito de la presente invención, es poder ajusfar la tensión de red a un
rango mucho más estable con posibilidad de ajustar la tensión de red con un margen muy pequeño de error, en el orden de centenas de milivoltio. The purpose of the present invention is to be able to adjust the mains voltage to a much more stable range with the possibility of adjusting the grid voltage with a very small margin of error, in the order of hundreds of millivolts.
El dispositivo de la siguiente invención consigue que la potencia y/o tensión de la red eléctrica de entrada a una instalación sea totalmente estable, además de reducir un gran porcentaje de ruidos entrantes, producidos por el alto número de sistemas electrónicos conectados a las redes de distribución. Para ello el dispositivo de control de potencia en red eléctrica de la invención dispone de dos elementos principales una reactancia y un módulo de control de potencia. La reactancia comprende:- un bobinado secundario que está conectado en serie con una carga de la instalación y con una salida de la red eléctrica, y un bobinado primario con varias entradas sobre la que se controla el flujo de energía con la etapa de potencia; mientras que el módulo de control de potencia comprende al menos un elemento de control conectado para su alimentación a la salida de la red eléctrica y que presenta las señales necesarias para controlar el módulo de potencia que modificará los parámetros de la red eléctrica. The device of the following invention ensures that the power and / or voltage of the electrical network entering an installation is completely stable, in addition to reducing a large percentage of incoming noise, produced by the high number of electronic systems connected to the power networks. distribution. For this purpose, the power network power control device of the invention has two main elements, a reactance and a power control module. The reactance comprises: - a secondary winding that is connected in series with a load of the installation and with an output of the mains, and a primary winding with several inputs on which the energy flow is controlled with the power stage; while the power control module comprises at least one control element connected for its power at the output of the power grid and which presents the necessary signals to control the power module that will modify the parameters of the power grid.
Como topología predeterminada, el dispositivo aquí descrito hace uso de al menos un estabilizador tipo "booster" y de una etapa de control de potencia basada en semiconductores que hacen que una vez instalados se pueda chequear y gestionar la entrada de red de cualquier instalación, para posteriormente controlarla y ajustaría a los parámetros indicados. Una opción recomendada también se basaría en la posibilidad de añadir un componente de control de salida para chequear y comprobar la salida del dispositivo que va hacia la instalación; de manera que se puede ajustar o modificar la operación de circuito, o incluso anularlo, si el componente de control muestra datos que así lo requieran, como por ejemplo valores bajos que no son de utilidad para la instalación eléctrica a la entrada de la cual se encuentra conectada la salida del dispositivo objeto de la invención.
DESCRIPCIÓN DE FIGURAS As a predetermined topology, the device described here makes use of at least one "booster" type stabilizer and a semiconductor-based power control stage that, once installed, can check and manage the network input of any installation, to subsequently control it and adjust to the indicated parameters. A recommended option would also be based on the possibility of adding an output control component to check and check the output of the device going to the facility; so that the circuit operation can be adjusted or modified, or even canceled, if the control component shows data that requires it, such as low values that are not useful for the electrical installation at the input of which The output of the device object of the invention is connected. DESCRIPTION OF FIGURES
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, de acuerdo con un ejemplo preferente de realización práctica de la misma, se acompaña como parte integrante de dicha descripción, un juego de gráficos donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of graphics is accompanied as an integral part of said description. where for illustrative and non-limiting purposes, the following has been represented:
FIG. 1 Muestra un diagrama del estabilizador tipo "booster". FIG. 1 Shows a diagram of the "booster" type stabilizer.
FIG. 2 Muestra un diagrama del circuito basado en semiconductores utilizado para la gestión y control. FIG. 2 Shows a circuit diagram based on semiconductors used for management and control.
FIG. 3 Muestra una gráfica donde se aprecia la regulación de potencia aplicada. REALIZACIÓN PREFERENTE DE LA INVENCIÓN FIG. 3 Shows a graph showing the regulation of applied power. PREFERRED EMBODIMENT OF THE INVENTION
Seguidamente se describe, con ayuda de las figuras anteriormente mencionadas, un ejemplo detallado de una realización preferente de la presente invención, a partir de unos ensayos realizados por los inventores, que ponen de manifiesto la efectividad del dispositivo para control de potencia en red eléctrica de la invención. Next, a detailed example of a preferred embodiment of the present invention is described with the aid of the aforementioned figures, based on tests carried out by the inventors, which show the effectiveness of the device for power control in the electrical network of the invention.
En una realización preferente se tiene una topología de dispositivo (1 ) para control de potencia en red eléctrica se tiene que, como la que se observa en la figuras 1 y 2, el dispositivo (1 ) de control de potencia en red eléctrica objeto de la invención hace uso de un circuito estabilizador tipo "booster" como el mostrado en la figura 1. En este tipo de estabilizador, la corriente total de una carga no circula por los elementos de conmutación (los cuales en una implementación preferente son Triacs), sino que circula sólo una fracción proporcional de la misma. In a preferred embodiment, there is a device topology (1) for power control in the electrical network, as in Figure 1 and 2, the power control device (1) in the electrical network object of The invention makes use of a "booster" type stabilizer circuit as shown in Figure 1. In this type of stabilizer, the total current of a load does not circulate through the switching elements (which in a preferred implementation are Triacs), but only a proportional fraction of it circulates.
Cuando una eventual elevación ó reducción de tensión de entrada (7), la cual
se encuentra asociada a un interruptor electromagnético (5), tiene lugar en un transformador cuyo bobinado secundario está en serie con la línea y la carga, se consigue una regulación de tensión de salida (8) controlando el sentido del flujo energético en el bobinado primario. When an eventual elevation or reduction of input voltage (7), which It is associated with an electromagnetic switch (5), it takes place in a transformer whose secondary winding is in series with the line and the load, an output voltage regulation (8) is achieved by controlling the direction of the energy flow in the primary winding .
La propia inductancia del transformador puede ejercer como factor de atenuación en reducción de posibles ruidos de línea y picos transitorios. The transformer's own inductance can act as an attenuation factor in reducing possible line noise and transient peaks.
Para poder controlar y gestionar la forma final de la onda (1 ), se hace uso de conmutaciones para recortar periódicamente la tensión sinusoidal en sectores más pequeños, lo que permite, finalmente, regular la potencia aplicada a la carga de forma precisa. In order to control and manage the final waveform (1), switching is used to periodically cut the sinusoidal voltage in smaller sectors, which allows, finally, to regulate the power applied to the load precisely.
Generalmente, este proceso se consigue, tal y como se aprecia en la figura 3, recortando la onda, de modo que cada semionda sinusoidal de red corresponde a una conducción de 180° (360° para un ciclo completo), de modo que, retardando la conexión de 180° a 0o se consigue regular la potencia aplicada a la carga del 0 al 100%. A este valor de retardo en el ángulo de fase se le llama «ángulo de retardo» y se indica normalmente con la letra α (alfa). En algunos casos se habla también del «ángulo de conducción», que corresponde al valor 180°-a. Generally, this process is achieved, as shown in Figure 3, by cutting the wave, so that each network sine wave corresponds to a 180 ° (360 ° for a complete cycle) conduction, so that, delaying the connection from 180 ° to 0 or it is possible to regulate the power applied to the load from 0 to 100%. This delay value at the phase angle is called the "delay angle" and is normally indicated by the letter α (alpha). In some cases there is also talk of the «driving angle», which corresponds to the value 180 ° -a.
En este sentido, se tiene que el dispositivo (1 ) de gestión aquí descrito se compone de al menos una reactancia que puede ser unipolar o con forma de transformador, con una relación de transformación desde 2/1 a 30/1 , dependiendo de la necesidad, y cuyo bobinado secundario está dispuesto en serie con una carga de la instalación eléctrica en la cual se instala el dispositivo (1 ), y con un bobinado primario que comprende vahas entradas y que puede comprender una serie de conexiones que divide el bobinado en vahas secciones. El sistema regulará el efecto en la instalación dependiendo de cómo actúen sobre dichas entradas los elementos de electrónica de potencia (2).
Esta etapa de control puede adoptar diversas topologías en función de la necesidad concreta de cada instalación, cuya función común es regular el flujo energético en el primario del transformador, la cual se encuentra conectada con la etapa de control en lazo cerrado (7). In this sense, it is necessary that the management device (1) described here is composed of at least one reactance that can be unipolar or transformer-shaped, with a transformation ratio from 2/1 to 30/1, depending on the need, and whose secondary winding is arranged in series with a load of the electrical installation in which the device (1) is installed, and with a primary winding comprising several inputs and which can comprise a series of connections that divides the winding into There are sections. The system will regulate the effect on the installation depending on how the power electronics elements (2) act on these inputs. This control stage can adopt various topologies depending on the specific need of each installation, whose common function is to regulate the energy flow in the primary of the transformer, which is connected to the control stage in closed loop (7).
El modulo de potencia dispone de una señal de control para cada dispositivo de una fase, por lo que la etapa de control y regulación puede actuar independientemente sobre cada una de las fases sin alterar a las restantes. Dicho módulo, dependiendo de las necesidades y del tipo de instalación podrá tener a su vez subetapas que permitan controlar el flujo energético bidireccionalmente, obteniendo en la salida una reducción o una elevación de tensión según se necesite. Tal y como se observa en la figura 2, el módulo de control (2) se puede encontrar asociado a un elemento de apagado (9) destinado a apagar el dispositivo (1 ) o el módulo de control (2) cuando se determina que la tensión se encuentra suficientemente por encima o por debajo de respectivos umbrales superior e inferior de tensión predeterminados. The power module has a control signal for each device of a phase, so the control and regulation stage can act independently on each of the phases without altering the remaining ones. Said module, depending on the needs and the type of installation, may in turn have sub-stages that allow bi-directional energy flow to be controlled, obtaining a reduction or a voltage rise at the output as required. As can be seen in figure 2, the control module (2) can be found associated with a shutdown element (9) intended to turn off the device (1) or the control module (2) when it is determined that the voltage is sufficiently above or below respective predetermined upper and lower voltage thresholds.
Finalmente se puede disponer de un módulo de lectura (1 1 ) de tensión ubicado antes de la salida (8) y destinado a realizar una supervisión de la tensión que se hace llegar a la instalación para verificar la misma o para realizar ajustes en el control si ésta no es la deseada. Finally, it is possible to have a voltage reading module (1 1) located before the output (8) and intended to monitor the voltage that is sent to the installation to verify it or to make adjustments to the control If this is not the desired one.
En una posible realización alternativa de la invención, se puede disponer de una serie de filtros contra ruidos eléctricos (3) y una serie de filtros contra picos transitorios (4), filtros (3,4) que se encuentran dispuestos en paralelo y respectivamente conectados a neutro (5) y a tierra (6). In a possible alternative embodiment of the invention, a series of filters against electrical noise (3) and a series of filters against transient peaks (4), filters (3,4) that are arranged in parallel and respectively connected can be arranged to neutral (5) and to earth (6).
En una posible realización todavía más alternativa se tiene el dispositivo (1 ) configurado como transformador y comprende al menos una bobina
electromagnética, presentando una relación de transformación comprendida entre 2/1 y 30/1 .
In a possible even more alternative embodiment, the device (1) has been configured as a transformer and comprises at least one coil electromagnetic, presenting a transformation ratio between 2/1 and 30/1.
Claims
1 . - Dispositivo (1 ) de control de potencia en red eléctrica caracterizado por que comprende: one . - Power control device (1) in an electrical network characterized by comprising:
- una reactancia que a su vez comprende: - a reactance which in turn includes:
- un bobinado secundario que está conectado en serie a una carga de la instalación y a una salida de la red eléctrica, y - a secondary winding that is connected in series to a load of the installation and an outlet of the mains, and
- un bobinado primario con varias entradas sobre la que se controla el flujo de energía con la etapa de potencia, y - a primary winding with several inputs on which the energy flow is controlled with the power stage, and
- un módulo de control (2) de potencia que a su vez comprende: - a power control module (2) which in turn comprises:
- al menos un elemento de control conectado para su alimentación a la salida de la red eléctrica y que presenta las señales necesarias para controlar el módulo de potencia que modificará los parámetros de la red eléctrica. - at least one control element connected for its power supply at the output of the power grid and which presents the necessary signals to control the power module that will modify the parameters of the power grid.
2. - Dispositivo (1 ) según la reivindicación 1 , donde el dispositivo (1 ) es un transformador y está caracterizado por que comprende al menos una bobina electromagnética con una relación de transformación comprendida entre 2/1 y 30/1 . 2. - Device (1) according to claim 1, wherein the device (1) is a transformer and is characterized in that it comprises at least one electromagnetic coil with a transformation ratio between 2/1 and 30/1.
3. - Dispositivo (1 ) según reivindicación 1 ó 2, caracterizado por que el bobinado primario comprende una serie de conexiones que divide el bobinado en varias secciones. 3. - Device (1) according to claim 1 or 2, characterized in that the primary winding comprises a series of connections that divide the winding into several sections.
4. - Dispositivo (1 ) según una cualquiera de las reivindicaciones anteriores caracterizado por que el módulo de potencia comprende al menos un conjunto de semiconductores de potencia.
4. - Device (1) according to any one of the preceding claims characterized in that the power module comprises at least one set of power semiconductors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESU201430718 | 2014-05-23 | ||
| ES201430718U ES1112180Y (en) | 2014-05-23 | 2014-05-23 | POWER NETWORK CONTROL DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015177388A1 true WO2015177388A1 (en) | 2015-11-26 |
Family
ID=50895931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2015/070360 WO2015177388A1 (en) | 2014-05-23 | 2015-05-04 | Device for controlling power in an electric network |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES1112180Y (en) |
| WO (1) | WO2015177388A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183492A (en) * | 2018-01-27 | 2018-06-19 | 青海电研科技有限责任公司 | The test system and test method of reactive compensation controlling device |
| CN109063676A (en) * | 2018-08-24 | 2018-12-21 | 广东石油化工学院 | A kind of adaptive time-frequency method method and system for power signal |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10890932B2 (en) | 2018-08-20 | 2021-01-12 | Eaton Intelligent Power Limited | Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic core |
| US11735923B2 (en) * | 2020-07-28 | 2023-08-22 | Eaton Intelligent Power Limited | Voltage regulation device that includes a converter for harmonic current compensation and reactive power management |
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|---|---|---|---|---|
| GB2307567A (en) * | 1994-10-27 | 1997-05-28 | Seec Densetsu Kk | Load tap changing AC voltage regulator |
| US5808454A (en) * | 1997-02-28 | 1998-09-15 | Chung; Young Choon | Alternating current power control device |
| JP2002218652A (en) * | 2001-01-19 | 2002-08-02 | Aichi Electric Co Ltd | Automatic voltage regulator |
| KR100797054B1 (en) * | 2007-05-16 | 2008-01-22 | 주식회사 경영일렉텍 | Transformation circuit for auto controlling voltage |
| KR100926968B1 (en) * | 2009-06-08 | 2009-11-17 | (주)아토전기 | Automatic voltage regulator |
-
2014
- 2014-05-23 ES ES201430718U patent/ES1112180Y/en not_active Expired - Fee Related
-
2015
- 2015-05-04 WO PCT/ES2015/070360 patent/WO2015177388A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2307567A (en) * | 1994-10-27 | 1997-05-28 | Seec Densetsu Kk | Load tap changing AC voltage regulator |
| US5808454A (en) * | 1997-02-28 | 1998-09-15 | Chung; Young Choon | Alternating current power control device |
| JP2002218652A (en) * | 2001-01-19 | 2002-08-02 | Aichi Electric Co Ltd | Automatic voltage regulator |
| KR100797054B1 (en) * | 2007-05-16 | 2008-01-22 | 주식회사 경영일렉텍 | Transformation circuit for auto controlling voltage |
| KR100926968B1 (en) * | 2009-06-08 | 2009-11-17 | (주)아토전기 | Automatic voltage regulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183492A (en) * | 2018-01-27 | 2018-06-19 | 青海电研科技有限责任公司 | The test system and test method of reactive compensation controlling device |
| CN109063676A (en) * | 2018-08-24 | 2018-12-21 | 广东石油化工学院 | A kind of adaptive time-frequency method method and system for power signal |
| CN109063676B (en) * | 2018-08-24 | 2020-12-22 | 广东石油化工学院 | Self-adaptive time-frequency peak value filtering method and system for power signal |
Also Published As
| Publication number | Publication date |
|---|---|
| ES1112180Y (en) | 2014-09-09 |
| ES1112180U (en) | 2014-06-13 |
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