ES2619555B2 - Electrically hybridized photovoltaic pumping irrigation system - Google Patents
Electrically hybridized photovoltaic pumping irrigation system Download PDFInfo
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- ES2619555B2 ES2619555B2 ES201730131A ES201730131A ES2619555B2 ES 2619555 B2 ES2619555 B2 ES 2619555B2 ES 201730131 A ES201730131 A ES 201730131A ES 201730131 A ES201730131 A ES 201730131A ES 2619555 B2 ES2619555 B2 ES 2619555B2
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- frequency inverter
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- 230000002262 irrigation Effects 0.000 title claims abstract description 35
- 238000003973 irrigation Methods 0.000 title claims abstract description 35
- 238000005086 pumping Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 230000010287 polarization Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/006—Solar operated
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
-
- 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
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Sistema de riego por bombeo fotovoltaico hibridado eléctricamente.#Maximiza el aprovechamiento solar fotovoltaico, donde la red eléctrica (10) está conectada a la entrada alterna (31) del variador de frecuencia (30); el generador solar FV (20) está conectado al bus de continua (32) del variador de frecuencia (30) a través de un diodo (60) adaptado para permitir el paso de corriente eléctrica en un único sentido hacia el variador de frecuencia (30); donde el sistema de riego (1) comprende además al menos una unidad de control (70) que tiene un algoritmo de seguimiento del punto de máxima potencia del generador solar FV (20); estando el generador solar FV (20) dimensionado para entregar la potencia demandada por la bomba de agua (40), tal que su tensión en el punto de máxima potencia es mayor que la tensión DC impuesta por la red eléctrica (10) en el bus de continua (32) del variador de frecuencia (30).Electrically hybridized photovoltaic pumping irrigation system # Maximizes photovoltaic solar utilization, where the power grid (10) is connected to the alternating input (31) of the frequency inverter (30); The PV solar generator (20) is connected to the DC bus (32) of the frequency inverter (30) through a diode (60) adapted to allow the passage of electric current in a single direction towards the frequency inverter (30 ); where the irrigation system (1) further comprises at least one control unit (70) that has an algorithm for monitoring the maximum power point of the PV solar generator (20); the PV solar generator (20) being sized to deliver the power demanded by the water pump (40), such that its voltage at the point of maximum power is greater than the DC voltage imposed by the power grid (10) on the bus DC (32) of the frequency inverter (30).
Description
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DESCRIPCIONDESCRIPTION
Sistema de riego por bombeo fotovoltaico hibridado electricamente OBJETO DE LA INVENCIONElectrically hybridized photovoltaic pumping irrigation system OBJECT OF THE INVENTION
La presente invencion pertenece principalmente al sector de las energias renovables y la agricultura, y mas concretamente a sistemas de riego y bombeo de agua alimentados con fuentes de energia renovables, en particular paneles solares fotovoltaicos.The present invention pertains mainly to the renewable energy and agriculture sector, and more specifically to water irrigation and pumping systems fed with renewable energy sources, in particular photovoltaic solar panels.
El objeto de la presente invencion es un sistema de riego por bombeo fotovoltaico, hibridado electricamente con una fuente de suministro electrico convencional (por ejemplo, red electrica o grupos diesel), mediante el cual es posible maximizar el aprovechamiento de la energia solar fotovoltaica.The object of the present invention is a photovoltaic pumping irrigation system, electrically hybridized with a conventional electrical supply source (for example, electric network or diesel groups), by means of which it is possible to maximize the use of photovoltaic solar energy.
ANTECEDENTES DE LA INVENCIONBACKGROUND OF THE INVENTION
En la actualidad, son ampliamente conocidos los sistemas de riego por bombeo, lo cuales permiten obtener importantes ventajas, entre las que se encuentran:At present, pumping irrigation systems are widely known, which allow to obtain important advantages, among which are:
- garantizar la cantidad de agua de riego necesaria para los cultivos, cuando las lluvias son irregulares y/o insuficientes;- guarantee the amount of irrigation water necessary for crops, when the rains are irregular and / or insufficient;
- reducir la dependencia de los agricultores del sistema de riego por gravedad, especialmente cuando el riego por gravedad no es posible o los turnos de riego por gravedad no son fiables, son insuficientes, se demoran demasiado o no permiten regar con la debida frecuencia; y- reduce the dependence of farmers on the gravity irrigation system, especially when gravity irrigation is not possible or gravity irrigation shifts are not reliable, are insufficient, are delayed too much or do not allow irrigation with due frequency; Y
- asegurar la posibilidad de riego durante todo el ano, ya que muchos sistemas de riego por gravedad suministran agua solo durante ciertos meses del ano.- ensure the possibility of irrigation throughout the year, since many gravity irrigation systems supply water only during certain months of the year.
Respecto a los sistemas de riego hibridos, actualmente la hibridacion entre las fuentes de suministro electrico convencionales y los generadores solares fotovoltaicos FV se viene realizando mediante la conexion directa del generador FV al bus de continua del variador de frecuencia sin ninguna otra consideration. Esta circunstancia tiene el gran inconveniente de que obliga al generador FV a trabajar a la tension de continua DC impuesta por la fuente de suministro electrico convencional, la cual generalmente no es laWith regard to hybrid irrigation systems, currently hybridization between conventional power supplies and PV solar photovoltaic generators has been carried out by direct connection of the PV generator to the frequency bus continuum bus without any other consideration. This circumstance has the great disadvantage that it forces the PV generator to work at the DC voltage imposed by the conventional power supply, which is generally not the
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tension a la que el generador FV puede entregar su maxima potencia. Esto provoca por tanto que los actuales sistemas hforidos de riego esten desaprovechando una parte importante de la potencia que podrian aportar los generadores FV.voltage at which the PV generator can deliver its maximum power. This causes therefore that the current hydrophobic irrigation systems are wasting an important part of the power that PV generators could provide.
DESCRIPCION DE LA INVENCIONDESCRIPTION OF THE INVENTION
Mediante la presente invencion se soluciona el problema tecnico anteriormente planteado proporcionando un sistema de riego por bombeo fotovoltaico, hibridado electricamente con una fuente de suministro electrico convencional, ya sea la propia red electrica, o un generador electrico de diesel, gasolina o gas, mediante el cual es posible maximizar el aprovechamiento de la energia solar fotovoltaica.By means of the present invention, the aforementioned technical problem is solved by providing a photovoltaic pumping irrigation system, electrically hybridized with a conventional electrical supply source, either the electrical network itself, or an electric diesel, gasoline or gas generator, by means of the which is possible to maximize the use of photovoltaic solar energy.
El sistema de riego por bombeo fotovoltaico hibridado electricamente de la presente invencion comprende: al menos una fuente de suministro electrico convencional; al menos un generador solar FV; al menos un variador de frecuencia conectado tanto a la fuente de suministro electrico como al generador solar FV; y al menos una bomba de agua conectada a la salida del variador de frecuencia, y que vierte el agua a la red de riego, a la cual es conectable.The electrically hybridized photovoltaic pumping irrigation system of the present invention comprises: at least one conventional electrical supply source; at least one PV solar generator; at least one frequency inverter connected to both the power supply and the PV solar generator; and at least one water pump connected to the output of the frequency inverter, and which pours the water into the irrigation network, to which it is connectable.
Mas concretamente, la fuente de suministro electrico se encuentra conectada a una entrada de alterna del variador de frecuencia, preferentemente a traves de un interruptor; mientras que el generador solar FV se encuentra conectado a un bus de continua del variador de frecuencia a traves de un dispositivo semiconductor electronico, preferentemente un diodo conectado en polarization directa, adaptado para permitir el paso de corriente electrica en un unico sentido hacia el variador de frecuencia.More specifically, the power supply is connected to an alternating input of the frequency inverter, preferably through a switch; while the PV solar generator is connected to a continuous bus of the frequency inverter through an electronic semiconductor device, preferably a diode connected in direct polarization, adapted to allow the passage of electric current in a single direction towards the inverter. frequency.
Ademas, el sistema de riego de la invencion comprende al menos una unidad de control que tiene implementado un algoritmo de seguimiento del punto de maxima potencia del generador solar FV.In addition, the irrigation system of the invention comprises at least one control unit that has an algorithm for monitoring the maximum power point of the PV solar generator.
Por otra parte, el generador solar FV se encuentra dimensionado tal que es capaz de entregar la potencia demandada por la bomba de agua a partir de un determinado valor de irradiancia solar, y tal que su tension en el punto de maxima potencia es mayor que la tension DC impuesta por la fuente de suministro electrico convencional en el bus deOn the other hand, the PV solar generator is sized such that it is capable of delivering the power demanded by the water pump from a certain value of solar irradiance, and such that its voltage at the point of maximum power is greater than the DC voltage imposed by the conventional power supply on the bus
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continua del variador de frecuencia.Continuous frequency inverter.
De esta manera, la accion conjunta beneficiosa obtenida del correcto dimensionado del generador solar FV, la incorporation de unos diodos que protegen el circuito y evitan el flujo de corriente hacia el generador FV, y la inclusion de un algoritmo de seguimiento del punto de maxima potencia en la unidad de control que regula y monitoriza el variador de frecuencia, hace posible que, en caso de existir suficiente irradiancia solar, se establezca una tension en el bus de continua superior a la que impone la fuente de suministro electrico convencional, lo que permite a fin de cuentas extraer la maxima potencia del generador solar FV, aun existiendo conexion a la fuente de suministro electrico, maximizando asi el aporte energetico fotovoltaico.In this way, the beneficial joint action obtained from the correct dimensioning of the PV solar generator, the incorporation of diodes that protect the circuit and prevent the flow of current to the PV generator, and the inclusion of a maximum power point tracking algorithm in the control unit that regulates and monitors the frequency inverter, it is possible that, in case of sufficient solar irradiance, a voltage on the continuous bus is established higher than that imposed by the conventional power supply, which allows In the end, extracting the maximum power from the PV solar generator, even though there is a connection to the power supply, thus maximizing the photovoltaic energy input.
Asi, cuando existe irradiancia solar suficiente para alimentar la bomba de agua exclusivamente mediante el generador solar FV, toda la potencia necesaria por la bomba de agua es suministrada por dicho generador solar FV, mientras que la potencia entregada por la fuente de suministro electrico convencional es nula. En estas condiciones, la unidad de control, mediante su algoritmo de seguimiento del punto de maxima potencia, establece en el bus de continua del variador de frecuencia la tension DC correspondiente a la maxima potencia del generador solar FV en las condiciones de operation (irradiancia solar y temperatura) existentes. Al ser esta tension superior al valor correspondiente a la tension que impondria la red en el bus de continua, el puente rectificador de diodos ubicado en la etapa de entrada del variador de frecuencia impide que haya flujo de potencia desde el generador FV hacia la red electrica.Thus, when there is sufficient solar irradiance to power the water pump exclusively by means of the PV solar generator, all the power required by the water pump is supplied by said PV solar generator, while the power delivered by the conventional electrical supply source is void Under these conditions, the control unit, by means of its algorithm for monitoring the maximum power point, establishes the DC voltage corresponding to the maximum power of the PV solar generator in the operating conditions of the frequency inverter under the operating conditions (solar irradiance and temperature) existing. Since this voltage is higher than the value corresponding to the voltage that the network would impose on the continuous bus, the diode rectifier bridge located at the input stage of the frequency inverter prevents power flow from the PV generator to the power grid. .
En cambio, cuando no existe suficiente irradiancia solar para suministrar unicamente mediante el generador solar FV toda la potencia demandada por la bomba de agua, por ejemplo debido al paso de nubes en ese momento, o porque se esta al comienzo o al final del dia, la fuente de suministro electrico convencional proveera la potencia complementaria e impondra su tension en el bus de continua del variador de frecuencia. Asi, el generador solar FV aportara la potencia correspondiente a esa tension DC y a la irradiancia solar de ese instante. Por otro lado, la instalacion de los dispositivos electronicos semiconductores (diodos) impide que haya flujo de corriente electrica desde la fuente de suministro electrico convencional al generador solar FV en estas condiciones de irradiancia baja o nula,On the other hand, when there is not enough solar irradiance to supply only through the PV solar generator all the power demanded by the water pump, for example due to the passage of clouds at that time, or because it is at the beginning or at the end of the day, The conventional power supply will provide the complementary power and impose its voltage on the DC bus of the frequency inverter. Thus, the PV solar generator will provide the power corresponding to that DC voltage and the solar irradiance of that moment. On the other hand, the installation of semiconductor electronic devices (diodes) prevents the flow of electric current from the conventional power supply to the PV solar generator under these conditions of low or no irradiance,
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garantizando asi la protection del generador FV.thus guaranteeing the protection of the PV generator.
DESCRIPCION DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para complementar la description que se esta realizando y con objeto de ayudar a una mejor comprension de las caracteristicas de la invention, de acuerdo con un ejemplo preferente de realization practica de la misma, se acompana como parte integrante de dicha descripcion, un juego de dibujos en donde con caracter 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 realization of the same, a set of drawings is accompanied as an integral part of said description. where, with an illustrative and non-limiting nature, the following has been represented:
Figura 1.- Muestra una vista esquematica del sistema de riego por bombeo fotovoltaico hibridado electricamente de acuerdo con una realizacion preferente de la invencion.Figure 1.- Shows a schematic view of the electrically hybridized photovoltaic pumping irrigation system according to a preferred embodiment of the invention.
REALIZACION PREFERENTE DE LA INVENCIONPREFERRED EMBODIMENT OF THE INVENTION
Se describe a continuation un ejemplo de realizacion preferente haciendo mention a la figura arriba citada, sin que ello limite o reduzca el ambito de proteccion de la presente invencion.An example of a preferred embodiment is described below, mentioning the above-mentioned figure, without limiting or reducing the scope of protection of the present invention.
En la figura 1 se puede apreciar una realizacion preferente del sistema de riego (1) por bombeo fotovoltaico hibridado electricamente objeto de la invencion, el cual comprende:Figure 1 shows a preferred embodiment of the irrigation system (1) by electrically hybridized photovoltaic pumping object of the invention, which comprises:
- una fuente de suministro electrico (10) convencional, que en este caso es la propia red electrica;- a conventional power supply (10), which in this case is the electricity network itself;
- al menos un generador solar FV (20);- at least one PV solar generator (20);
- dos variadores de frecuencia (30) de iguales caracteristicas;- two frequency inverters (30) of the same characteristics;
- dos bombas de agua (40), en este caso motobombas (MB), conectadas a la salida de los variadores de frecuencia (30), siendo estas bombas de aguas (40) conectables a su vez a la red de riego (R) correspondiente en cada caso para la impulsion de agua;- two water pumps (40), in this case motor pumps (MB), connected to the output of the frequency inverters (30), these water pumps (40) being in turn connectable to the irrigation network (R) corresponding in each case for water supply;
- una unidad de control (70) que tiene implementado un algoritmo de seguimiento del punto de maxima potencia del generador solar FV (20);- a control unit (70) that has implemented an algorithm for monitoring the maximum power point of the PV solar generator (20);
donde la red electrica (10) se encuentra conectada a la entrada de alterna (31) de cada uno de los variadores de frecuencia (30) a traves, en este caso, de unos interruptores (50)where the electrical network (10) is connected to the alternating input (31) of each of the frequency inverters (30) through, in this case, some switches (50)
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simples ON/OFF;simple ON / OFF;
y donde el generador solar FV (20) se encuentra conectado a los buses de continua (32) de los variadores de frecuencia (30) a traves de unos dispositivos semiconductores electronicos (60) configurados para permitir el paso de corriente electrica en un unico sentido hacia el variador de frecuencia (30), pero nunca en sentido contrario, protegiendo asi al generador solar FV (20), siendo en este ejemplo de realization un par de diodos conectados en polarization directa, tal y como se muestra en la figura 1.and where the PV solar generator (20) is connected to the DC buses (32) of the frequency inverters (30) through electronic semiconductor devices (60) configured to allow the passage of electric current in a single direction towards the frequency inverter (30), but never in the opposite direction, thus protecting the PV solar generator (20), being in this example of realization a pair of diodes connected in direct polarization, as shown in Figure 1.
Ademas, el generador solar FV (20) esta dimensionado de modo que es capaz de entregar la potencia demandada por las bombas de agua (40) a partir de un determinado valor de irradiancia solar, tal que su tension en el punto de maxima potencia es mayor que la tension DC impuesta por la red electrica (10) en el bus de continua (32) del variador de frecuencia (30).In addition, the PV solar generator (20) is sized so that it is capable of delivering the power demanded by the water pumps (40) from a certain value of solar irradiance, such that its voltage at the point of maximum power is greater than the DC voltage imposed by the mains (10) on the DC bus (32) of the frequency inverter (30).
Por tanto, el sistema de riego (1) aqu descrito contempla basicamente dos modos de funcionamiento:Therefore, the irrigation system (1) described here basically contemplates two modes of operation:
a) En un primer modo de funcionamiento, cuando se dispone suficiente potencia FV para accionar las dos bombas de agua (40), la red electrica (10) no aporta ninguna potencia. Este aporte nulo de potencia desde la red electrica (10), permite que la unidad de control (70) ordene que la tension del bus de continua (32) del variador de frecuencia (30) sea la que corresponde a la de maxima potencia del generador solar FV (20) mediante el algoritmo de seguimiento del punto de maxima potencia. Ademas, el puente de diodos de la etapa rectificadora del variador de frecuencia (30) impide que haya flujo de corriente desde el generador solar FV (20) hacia la red electrica (10).a) In a first mode of operation, when sufficient PV power is available to drive the two water pumps (40), the electrical network (10) does not provide any power. This null contribution of power from the mains (10), allows the control unit (70) to order that the voltage of the continuous bus (32) of the frequency inverter (30) is the one that corresponds to the maximum power of the PV solar generator (20) using the maximum power point tracking algorithm. In addition, the diode bridge of the rectifier stage of the frequency inverter (30) prevents current flow from the PV solar generator (20) to the power grid (10).
b) En un segundo modo de funcionamiento, cuando no se dispone de suficiente potencia FV para accionar las dos bombas de agua (40), la red electrica (10) aportara la potencia complementaria, imponiendo su tension en el bus de continua (32) del variador de frecuencia (30). El generador FV aportara la potencia que corresponda a esta tension DC, y los diodos (60) instalados entre el generador solar FV (20) y el bus de continua (32) del variador de frecuencia (30) evitaran que haya flujo de corriente entre la red electrica (10) yb) In a second mode of operation, when there is not enough PV power available to drive the two water pumps (40), the electric network (10) will provide the complementary power, imposing its voltage on the continuous bus (32) of the frequency inverter (30). The PV generator will provide the power corresponding to this DC voltage, and the diodes (60) installed between the PV solar generator (20) and the DC bus (32) of the frequency inverter (30) will prevent current flow between the electrical network (10) and
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el variador de frecuencia (30).the frequency inverter (30).
De esta manera, cuando hay suficiente irradiancia solar, se extrae la maxima potencia del generador solar FV (20) y, cuando no hay suficiente, el generador solar FV (20) sigue aportando potencia. Asi, se maximiza la contribution de ene^a solar fotovoltaica en el sistema hibridado electricamente.In this way, when there is sufficient solar irradiance, the maximum power of the PV solar generator (20) is extracted and, when there is not enough, the PV solar generator (20) continues to provide power. Thus, the contribution of photovoltaic solar energy in the electrically hybridized system is maximized.
En la figura 1 se aprecia que las bombas de agua (40) disponen de conductos de entrada y salida (41, 42) para su conexion a puntos de inyeccion y expulsion de agua respectivamente de la red de riego (R).Figure 1 shows that the water pumps (40) have inlet and outlet ducts (41, 42) for connection to water injection and ejection points respectively of the irrigation network (R).
Con respecto a la fuente de suministro electrico (10) convencional, se ha contemplado igualmente la posibilidad de que esta puede consistir en un generador electrico, ya sea diesel, de gas o de gasolina.With respect to the conventional power supply (10), the possibility that it may consist of an electric generator, whether diesel, gas or gasoline, has also been contemplated.
Asimismo, en la figura 1 se observa que la unidad de control (70) consiste en este ejemplo de realization en un automata programable PLC, externo e independiente del variador de frecuencia (30), conectado al control de los variadores de frecuencia (30). No obstante, se ha previsto que la unidad de control (70) puede ser el propio control interno del variador de frecuencia (30).Likewise, in figure 1 it is observed that the control unit (70) consists in this example of realization in a PLC programmable automaton, external and independent of the frequency inverter (30), connected to the control of the frequency inverters (30) . However, it is envisioned that the control unit (70) may be the internal control of the frequency inverter (30) itself.
Por tanto, el sistema de riego (1) por bombeo fotovoltaico hibridado electricamente de la presente invention permite maximizar el aprovechamiento de la energia solar fotovoltaica, donde el generador solar FV (20) trabaja en su punto de maxima potencia cuando hay irradiancia suficiente para que dicho generador solar FV (20) aporte toda la potencia que necesitan las bombas de agua (40), evitando al mismo tiempo que la red establezca la tension del bus de continua (32)) del variador de frecuencia (30) que, normalmente, no es la tension del punto de maxima potencia del generador solar FV (20).Therefore, the electrically hybridized photovoltaic pumping irrigation system (1) of the present invention allows maximizing the use of photovoltaic solar energy, where the PV solar generator (20) works at its maximum power point when there is sufficient irradiance for said PV solar generator (20) provides all the power needed by the water pumps (40), while preventing the network from establishing the voltage of the DC bus (32)) of the frequency inverter (30) which, normally, It is not the maximum power point voltage of the PV solar generator (20).
Claims (8)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201730131A ES2619555B2 (en) | 2017-02-06 | 2017-02-06 | Electrically hybridized photovoltaic pumping irrigation system |
| PCT/ES2017/070858 WO2018141998A1 (en) | 2017-02-06 | 2017-12-28 | System for watering by means of electrically hybridised photovoltaic pumping |
| ARP180100265A AR110959A1 (en) | 2017-02-06 | 2018-02-05 | IRRIGATION SYSTEM BY ELECTRIC HYBRID PHOTOVOLTAIC PUMPING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201730131A ES2619555B2 (en) | 2017-02-06 | 2017-02-06 | Electrically hybridized photovoltaic pumping irrigation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2619555A1 ES2619555A1 (en) | 2017-06-26 |
| ES2619555B2 true ES2619555B2 (en) | 2017-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201730131A Active ES2619555B2 (en) | 2017-02-06 | 2017-02-06 | Electrically hybridized photovoltaic pumping irrigation system |
Country Status (3)
| Country | Link |
|---|---|
| AR (1) | AR110959A1 (en) |
| ES (1) | ES2619555B2 (en) |
| WO (1) | WO2018141998A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021094814A1 (en) * | 2019-11-13 | 2021-05-20 | WELL PUMPS, société anonyme | Device for controlling solar driven water pumps and method in which such a device is applied |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2046109B1 (en) * | 1992-04-09 | 1996-11-16 | Casado Jesus Casado | A DIGITAL PROGRAMMER FOR IRRIGATION. |
| ES1074806Y (en) * | 2011-01-12 | 2012-04-09 | Castro Alfredo Antonio De | DIRECT SOLAR PUMPING FOR CONSTANT PRESSURE AND FLOW IRRIGATION METHODS |
| CA2907142C (en) * | 2013-03-18 | 2020-10-27 | Kavan GRAYBILL | Solar drive control system for oil pump jacks |
| CN104756833B (en) * | 2015-03-27 | 2017-03-15 | 江苏大学 | A kind of distributed gravity irrigation photovoltaic system of layering pumping storage |
-
2017
- 2017-02-06 ES ES201730131A patent/ES2619555B2/en active Active
- 2017-12-28 WO PCT/ES2017/070858 patent/WO2018141998A1/en active Application Filing
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2018
- 2018-02-05 AR ARP180100265A patent/AR110959A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018141998A1 (en) | 2018-08-09 |
| ES2619555A1 (en) | 2017-06-26 |
| AR110959A1 (en) | 2019-05-22 |
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