WO2010029099A1 - Systeme photovoltaïque a batterie et panneau photovoltaïque integres - Google Patents
Systeme photovoltaïque a batterie et panneau photovoltaïque integres Download PDFInfo
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- WO2010029099A1 WO2010029099A1 PCT/EP2009/061676 EP2009061676W WO2010029099A1 WO 2010029099 A1 WO2010029099 A1 WO 2010029099A1 EP 2009061676 W EP2009061676 W EP 2009061676W WO 2010029099 A1 WO2010029099 A1 WO 2010029099A1
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- WIPO (PCT)
- Prior art keywords
- battery
- photovoltaic
- photovoltaic system
- photovoltaic panel
- face
- Prior art date
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 11
- 229910001416 lithium ion Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 238000004146 energy storage Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000009933 burial Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 206010011906 Death Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Definitions
- the invention relates to a photovoltaic system integrating in a single device several functions such as the conversion of solar energy into electrical energy, the storage of the electrical energy produced or the management of the electrical energy produced.
- Photovoltaic systems for storing electrical energy produced, operating autonomously or connected to an electrical network consist of several distinct components:
- FIG. 1 A diagram of an autonomous photovoltaic system 1, used for example to power a telecommunications device, street furniture, an isolated site such as a dwelling or a vehicle is shown in FIG. 1.
- This photovoltaic system 1 comprises a photovoltaic panel 2, an electrochemical battery 4, a switch or a DC / DC voltage converter 6 (also called a converter). DC / DC), a switch or a DC / DC converter or an inverter 8, and an electronic energy management system 10, or dashboard, controlling the components referenced 6 and 8.
- This photovoltaic system 1 is The components are interconnected by electrical cables and can be more or less distant from each other.
- the component 6 When the component 6 is a switch, it allows to connect or not the output of the photovoltaic panel 2 to the other components of the photovoltaic system 1.
- the component 6 When the component 6 is a DC / DC converter, it converts the DC voltage obtained at the output of the photovoltaic panel 2 in a DC voltage adapted to the voltage of the battery 4.
- the component 8 When the component 8 is a switch, it allows to connect or not the output of the component 8 to the device 12.
- the component 8 When the component 8 is a DC / DC converter or an inverter, the latter makes it possible to convert the DC voltage obtained at the output of the component 6 into a DC or AC voltage corresponding to the operating voltage of the device 12.
- the photovoltaic system 14 comprises a switch 18, controlled by the electronic management system of the energy 10 and allowing to connect or not the output of the inverter 8 to the electrical network 20.
- lead-acid technology is the most widely used technology for producing batteries, mainly because of its low cost and availability.
- batteries have a relatively low mass energy and a relatively low energy density, respectively equal to about 40 Wh / kg and 80 Wh / L, which corresponds to a weight and a high occupied volume per kWh stored.
- the weight and the volume of the batteries are important constraints for the transport (especially when the photovoltaic systems are isolated and remote from the road infrastructures) and the installation of the photovoltaic systems.
- the size of the batteries is also very restrictive for isolated applications such as street furniture where space is often limited.
- the installation of lead-acid batteries therefore generates additional costs for the camouflage of batteries in decorative elements such as concrete bases or benches, or for the burial of these batteries.
- this congestion is also constraining because the presence of lead-acid batteries involves providing a technical room for their storage.
- the space initially provided for storing the batteries can become limiting and prevent the resizing of the installation.
- lithium-based batteries for example of lithium-ion type, having a higher specific energy and a higher energy density (respectively between about 100 Wh / kg and 150 Wh / kg, and between about 150 Wh / kg). L and 200 Wh / L) than lead-acid batteries.
- these batteries can be made in various forms: cylindrical, prismatic, flat, etc.
- Lithium also has other advantages over lead, such as a longer life (about 20 years and 3000 cycles at 100% use for batteries made in the form of flat plates, against 3 years for lead), better energy efficiency (this output corresponds to the number of kWh returned by the battery compared to the kWh injected into the battery) and a lack of maintenance, ultimately making the cost per kWh returned from these batteries equivalent or less than that of lead-acid batteries when the usage profile of the application requires successive charging-discharging cycles at high discharge depths (> 50% of nominal capacity).
- the life of the batteries, whether lead-acid or lithium-ion is thus strongly influenced on the one hand by the depths of the discharges reached during the charge-discharge cycles, and on the other hand by the temperature of the environment in which they operate.
- the curves 22, 24 and 26 shown in FIG. 3 illustrate the evolution, depending on the years, of the storage capacity of a lithium-ion battery with respect to its initial storage capacity, respectively at an operating temperature of 20 ° C., 40 ° C. and 60 ° C., for a given depth of discharge. It is clear from these curves that an increase in the ambient operating temperature causes a drop in the battery life.
- An object of the present invention is to provide a compact multifunctional photovoltaic system integrating in particular the functions of converting solar energy into electrical energy and storing the electrical energy produced within a single autonomous device, thus facilitating its integration. and its installation in any type of site, whether isolated or connected to an electrical network, and also to prevent degradation over time of its storage capacity of the electrical energy produced.
- a photovoltaic system comprising at least: - a photovoltaic panel, a battery mechanically connected to the photovoltaic panel by a holding structure, a space open to the environment outside the photovoltaic system and separating the battery and the photovoltaic panel a distance of at least about 1 cm.
- the space between the battery and the photovoltaic panel can form an air circulation space between the battery and the photovoltaic panel.
- no component of the photovoltaic system compromises the life of the other components of the system, including the battery, because of the heat generated during operation of the system, including the photovoltaic panel.
- This integration mode thus guarantees a comparable lifetime between all system components, also limiting the impact of the ambient temperature and the radiation received on the various integrated components.
- the present invention further relates to a photovoltaic system comprising at least:
- a photovoltaic panel comprising a face intended to receive light rays
- Such a photovoltaic system therefore has a planar shape, that is to say a small thickness compared to other dimensions of the system.
- This system makes it possible to guarantee a comparable service life between all system components, while also limiting the impact of the ambient temperature and the radiation received on the various integrated components, while ensuring a high compactness of the system.
- the distance separating the battery and the photovoltaic panel that is to say the thickness of the air gap, can be between about 1 cm and 30 cm, or between 1 cm and 20 cm, or between 1 cm and 10 cm.
- Such a structure can therefore also optimize the weight and thickness of the photovoltaic system, and allow the photovoltaic system to achieve low dimensional and mass characteristics, facilitating its transport, installation and maintenance.
- the ratio between the thickness of the air gap and the dimension of one side of the face of the photovoltaic panel may be less than or equal to about 1/10.
- the surface of the face of the photovoltaic panel can be between about 0.25 m 2 and 2 m 2 .
- the ratio between the thickness of the photovoltaic system and the dimension of one side of the face of the photovoltaic panel can be between about 1/7 and 1/8.
- the battery may be lithium-based and / or comprise at least one prismatic electrical energy storage element.
- the battery can be lithium-ion type and include several electrical energy storage elements of prismatic form electrically connected in series. With this lithium technology, the battery is best integrated with the photovoltaic system and allows the system to have a reduced thickness and weight, especially when the battery is formed by thin elements, for example prismatic, present under the assembly or a part of the surface of the photovoltaic panel.
- the surface presented by the battery in a plane parallel to the face of the photovoltaic panel intended to receive light rays may be included in the surface presented by said face of the photovoltaic panel in this plane or in another plane parallel to the face of the photovoltaic panel intended to receive light rays.
- the surface presented by the battery in a plane parallel to the face of the photovoltaic panel intended to receive light rays may be less than or equal to, or have a dimension less than or equal to, that of said face of the photovoltaic panel in this plane or in a another plane parallel to the face of the photovoltaic panel intended to receive light rays.
- the photovoltaic panel and the associated open space form a shield thermally protecting the other components of the photovoltaic system arranged behind the photovoltaic panel vis-à-vis the light rays received by the photovoltaic panel.
- the photovoltaic system may further comprise electronic elements for managing and / or converting the generated electrical energy disposed on a support plate mechanically connected to the battery, the support plate being disposed between the electronic elements and the battery.
- the photovoltaic system comprises all its integrated functional components in a single device.
- the management elements and / or conversion can also integrate on the same plane as the battery, in a free space between the outer edge of the panel and the battery, the overall thickness of these electronic elements being less than or equal to the total thickness of the photovoltaic system.
- the photovoltaic system may further comprise a second space open to the environment outside the system.
- this space can form an air circulation space between the battery and the support plate, that is to say between the battery and the electronic elements. This space formed between the battery and the electronic elements allows air circulation avoiding the battery to undergo increases in temperature due to the heating of the management and / or conversion electronics during operation.
- the electronic elements for managing and / or converting the electrical energy produced may comprise at least one DC / DC voltage converter, and / or an optimal energy conversion device, and / or a battery charge regulator, and / or a block of connections, and / or a battery discharge regulator, and / or a DC / AC voltage converter, and / or a microcontroller.
- the surface presented by the support plate and the electronic elements for managing and / or converting the electrical energy produced, in a plane parallel to the face of the photovoltaic panel intended to receive light rays may be included in the surface of said face of the photovoltaic panel in this plane or in another plane parallel to the face of the photovoltaic panel intended to receive light rays.
- the surface presented by the support plate and the electronic elements for managing and / or converting the electrical energy produced, in a plane parallel to the face of the photovoltaic panel intended to receive light rays may be less than or equal to, or have a dimension less than or equal to that of said face of the photovoltaic panel in this plane or in another plane parallel to the face of the photovoltaic panel intended to receive light rays.
- This second space forming the second air gap allows in particular to cool the electronics through the air flow in the second space, but also allows the expansion of the battery during aging.
- the photovoltaic system further comprises dissipation and / or heat dissipation means arranged in the space forming the air gap separating the battery and the photovoltaic panel, and / or in the second space forming the second blade of air separating the battery and the support plate when the photovoltaic system has this second space.
- FIGS. 1 and 2 respectively represent a diagram of an autonomous photovoltaic system and a diagram of a photovoltaic system connected to an electrical network according to the prior art
- FIG. 3 represents curves illustrating the evolution, depending on the years, of the storage capacity of a lithium-ion battery with respect to its initial storage capacity, at different operating temperatures
- FIG. 4 represents a diagram of a photovoltaic system, object of the present invention, according to a particular embodiment
- FIG. 5 represents a partial sectional sectional view of a photovoltaic system, object of the present invention, according to a particular embodiment
- FIG. 6 represents curves illustrating the evolution, during a day of operation. of the temperature of the components of a photovoltaic system, object of the present invention, as a function of the spacing between these components
- FIGS. 7A and 7B represent sectional views of a photovoltaic system, object of the present invention, according to a particular embodiment.
- Identical, similar or equivalent parts of the different figures described below bear the same numerical references so as to facilitate the passage from one figure to another. The different parts shown in the figures are not necessarily in a uniform scale, to make the figures more readable.
- FIG. 4 shows a diagram of a photovoltaic system 100, object of the present invention, according to a particular embodiment.
- the photovoltaic system 100 comprises a photovoltaic panel 102 whose output is electrically connected to a first DC / DC voltage converter 104, also called DC / DC converter.
- An optimum energy conversion device 106 (also called MPPT or "Maximum Power Point Tracker” in English) is electrically connected to the first DC / DC converter 104.
- the output of the first DC / DC converter 104 is electrically connected to the input of a battery charge regulator 108 (also called BCR, "Battery Charge Regulator” in English) and the input of a second DC / DC converter 110 via a connection block 112.
- the output of the battery charge regulator 108 is electrically connected to a battery 114, here of the lithium-ion type, and to the input of a battery discharge regulator 116 (also called BDR or “Battery Discharge Regulator”). which is also electrically connected to the battery 114 and to the input of a second DC / DC converter 110.
- the output of the second DC / DC converter 110 is electrically connected to the input of a DC / AC voltage converter 118 , also called DC / AC converter.
- the system 100 also comprises a microcontroller 120 controlling in particular the MPPT 106, the connection block 112, the BCR 108 and the BDR 116.
- the voltage obtained at the output of the photovoltaic panel 102 can be adapted by the DC / DC converter 104 so that it corresponds to the nominal voltage of the battery 114.
- the DC / DC converter 104 is also controlled. by the MPPT 106.
- the MPPT 106 thus makes it possible to drive the static converter (here the DC / DC converter 104) connecting the load (here the battery 114) and the photovoltaic panel 102 so as to permanently provide maximum power to the load.
- This MPPT 106 is itself controlled by the microcontroller 120.
- the microcontroller 120 also controls the connection block 112 which directs the electrical energy produced either to the battery 114 or to the electrical network to which the system 100 is connected or the device intended to be powered by the system 100.
- the microcontroller 120 driver also the BCR 108 and the BDR 116 which regulate the incoming and outgoing electric power of the battery 114.
- connection block 112 When the connection block 112 sends the generated electrical energy to the device to be supplied or the network, or when the battery delivers electrical energy to the device to be powered or the network, the voltage is then converted by the DC converter / DC 110 and then by the DC / AC converter 118, allowing for example to output a 230 V AC voltage synchronized with the mains (50Hz for example).
- FIG. 5 represents a partial cross-sectional view of the photovoltaic system 100.
- the photovoltaic panel 102 forms the front face of the photovoltaic system 100 which is intended to receive the solar energy. This front face is parallel to the plane (X, Y) along the X and Y axes shown in FIG. 5. All the components of the system 100 are positioned at the rear of the panel 102 and are superimposed on each other, forming a stack successive layers, so that the photovoltaic panel 102 forms a thermal shield vis-à-vis these components.
- the battery 114 is here made by prismatic lithium-ion elements.
- the surface of these lithium-ion elements occupied in a plane parallel to the plane (X, Y) is maximized so that it substantially corresponds to the surface of the front face of the panel 102, while remaining protected from the light rays received on the front face of the panel 102.
- the elements of the battery 114 are held in the rest of the system 100 by a mechanical support structure 122 which is connected to the photovoltaic panel 102.
- the system 100 also comprises a support plate 124, for example based on epoxy on which a control electronics 126 is produced, for example in the form of an electronic card, comprising the control elements. 104, 106, 108, 110, 112, 116, 118 and 120 previously described in connection with FIG. 4.
- the electronic card consists of electronic blocks associated with each of these elements and allowing the management of the charge and the discharge of the battery, as well as their balancing.
- the electronic card 126 is screwed to the battery 114 through the support plate 124, directly on the terminals 130 of the battery by a screw 131.
- this very short connection avoids the ohmic drops which can for example appear if wired connections were used.
- a protection plate 128 forms the rear face of the photovoltaic system 100.
- the electronic card 126 is connected to the battery 114 by a wired connection.
- the photovoltaic system 100 also comprises a first space 132, forming an air space, allowing an air flow in the system 100, between the photovoltaic panel 102 and the battery 114.
- the distance formed by the space 132 between these components is for example between about 1 cm and 10 cm.
- the photovoltaic system 100 also comprises a second space 133, forming a second air gap, between the battery 114 and the support plate 124.
- This second space 133 makes it possible to carry out a circulation of air between the photovoltaic panel 102 and the support plate 124, that is to say between the photovoltaic panel 102 and the control electronics 126.
- the battery 114 is maintained at a distance, for example between about 1 cm and 10 cm. the support plate 124.
- the various components of the photovoltaic system 100 are superimposed and spaced apart by the spaces 132, 133, which here are voids, through which the air can circulate, so that the thermal interaction of a component of the system 100 vis- another component of the system 100 is limited.
- no component compromises the life of the other components because of the heat generated during operation of the system 100 by these components, and in particular the photovoltaic panel 102 and control electronics 126 which are the components that generally release the most heat from all the components of the system 100.
- the curves shown in FIG. 6 describe the evolution of the maximum temperature of the battery 114 and the photovoltaic panel 102 according to the time of a summer day.
- the curves 134 and 136 respectively represent the changes in the temperatures of the photovoltaic panel 102 and the battery 114 when the gaps 132, 133 are non-existent, the battery 114 being in this case pressed against the photovoltaic panel 102 and against the support plate 124.
- the curves 138 and 140 respectively represent the evolutions of the temperatures of the photovoltaic panel 102 and of the battery 114 when the spaces 132, 133 have a thickness equal to about 1 cm, the curves 142 and 146 representing the evolutions of these same components when the spaces 132 133 have a thickness of about 5 cm.
- Curve 146 represents the evolution of the ambient temperature during this day.
- the temperature of the battery 114 increases with sunshine on the one hand and with the heat emitted by the panel 102. It is observed that without the spaces 132, 133 (curves 134, 136), the temperature of the battery 114 corresponds approximately to that of the photovoltaic panel 102 is, for the hottest hours of the day, at a temperature between about 60 ° C and 65 ° C. With spaces 132, 133 of thickness equal to about 1 cm, the the maximum temperature reached by the photovoltaic panel 102 then drops by about 70 ° C. (curve 138) and that of the battery 114 drops by about 25 ° C. (curve 140) with respect to the Without spaces 132, 133.
- the maximum temperature reached by the photovoltaic panel 102 drops by about 18 ° C. (curve 142) and that of the battery 114. drop about 33 0 C (curve 144) compared to the configuration without spaces 132, 133.
- the daily gradient (difference between the highest temperature and the coldest temperature) also drops for the battery 114 and the panel 132 for the two spaces thicknesses 132, 133. It can therefore be seen that by virtue of the presence of spaces 132, 133 forming air knives, the thermal impact of the photovoltaic panel 102 and the control electronics 126 on the battery 114 is very small.
- the thermal stresses experienced by the battery 114 during its operation are less severe, reducing the impact of these thermal stresses on its service life.
- the spaces 132, 133 also limit the maximum temperature reached by the photovoltaic panel 102, thus ensuring a better production of daily electrical energy because the efficiency of the photovoltaic panel 102 is better at low temperature.
- the thickness of one of the spaces 132, 133 is at least equal to approximately 1 cm in order to limit the thermal impact of the photovoltaic panel 102 on the life of the battery 114. Moreover, this thickness is for example chosen less than or equal to 10 cm in order to limit the size in the system 100 vis-à-vis the desired integration level.
- FIGS. 7A and 7B show detailed sectional views of the system 100.
- the references indicated in these figures correspond to those of FIGS. 4 and 5.
- the photovoltaic panel 102 has for example a nominal power equal to about 75 Wp (peak watt), and overall dimensions equal to about 1237 mm x 556 mm x 24.5 mm, for a total weight of 7.8 kg. Such a panel makes it possible to obtain on average a daily electricity production equal to about 350 Wh (with a yield of 13% of the panel), or about 125 kWh per year.
- the surface of the face of the photovoltaic panel 102 intended to receive the light rays is between about 0.25 m 2 and 2 m 2 , the dimensions of the sides of the panel 102, for example rectangular and possibly elongated or square, being between about 0.5 m and 2 m.
- the output power of the photovoltaic panel 102 which is directly proportional to the area intended to receive the light rays and the technology used, is between a few tens of W and about 250 W.
- the panel 102 may comprise photovoltaic cells based on monocrystalline silicon, polycrystalline, amorphous and / or in thin layers.
- the panel 102 can be fixed on a metal frame or integrated in the form of solar tiles.
- the panel thickness 102 may be between about 24 mm and 50 mm
- the size of the battery 114 is made taking into account the amount of electricity that can be produced by the photovoltaic panel
- Such a photovoltaic system 100 is for example intended, when it is used with a dwelling connected to the electricity grid and consuming an average of 2 kW, to cope with consumption peaks that occur at midday
- the photovoltaic system 100 can also ensure the supply of electricity in case of power failure (for example about 1000 Wh for half an hour).
- This house can for example be equipped with 25 photovoltaic systems similar to the photovoltaic system 100, each comprising a photovoltaic panel whose nominal power is equal to about 75 Wc, a total of 1875 Wc for the 25 photovoltaic panels.
- a representative cycle of the operation of the photovoltaic systems of this dwelling can for example take place over 4 days.
- each photovoltaic system can produce about 350 Wh. Since the batteries are initially 100% charged, the electrical energy produced is either consumed in the home or sold to the power grid operator. The batteries provide the extra consumption of the evening, either about 80 Wh per photovoltaic system.
- the systems do not produce electricity (no sunshine). In this case, the batteries ensure the surplus consumption of lunch and evening, and a consumption of 2kW for half an hour of power outage, totaling 160 Wh per photovoltaic system.
- photovoltaic systems do not produce electricity (no sunshine). The batteries ensure the surplus consumption of lunch and evening, about 120 kW per photovoltaic system.
- each photovoltaic system produces about 350 Wh. All the electricity produced by the photovoltaic panels is used to recharge the batteries.
- the available electrical energy is equal to about 350 Wh.
- the initial storage capacity of the batteries is therefore approximately 480 Wh.
- the battery 114 is formed by prismatic-shaped lithium-ion elements, making it possible to cover a large part of the available area of the photovoltaic panel 102 in the plane (x, y).
- Each of these elements has a nominal capacity of 10 Ah.
- the number, dimensions and layout of these elements may in particular be functions of the technological nature of the battery 114 (for example here lithium-ion), defining the nominal voltages of the elements and thus obtaining the specified energy.
- the thickness of the battery may be between about 10 mm and 40 mm.
- the elements of the holding structure 122 mechanically connecting the battery 114 to the photovoltaic panel 102 may have a dimension, parallel to the thicknesses of the panel 102 and the battery 114, of between about 10 mm and 25 mm.
- the total mass of the system 100 is here less than 30 kg. Its dimensions in length and width (dimensions along the x and y axes) correspond to those of the simple photovoltaic panel 102, and for example equal to 1237 mm in length and 556 mm in width.
- the total thickness of the system 100 is for example equal to about 60.5 mm, and may be between about 60 mm and 240 mm.
- the dimensions, the configuration and the number of elements of the battery will be chosen according to the energy needs that the photovoltaic system must satisfy, whether for an isolated type application (street furniture for example), or type connected to the network as shown in the example.
- the thickness of the system is for example equal to about 66 mm. The ratio between the thickness of the photovoltaic system and the dimension of one side of the face of the photovoltaic panel is therefore about 1/7.
- the thickness of the system is for example equal to about 240 mm.
- the ratio between the thickness of the photovoltaic system and the dimension of one side of the face of the photovoltaic panel is therefore about 1/8.
- the spaces 132, 133 previously described are empty in order to allow air circulation in the photovoltaic system, especially around the battery.
- the spaces 132, 133 are not empty, but have devices for evacuation or dissipation of heat, possibly arranged against the components releasing heat such as the photovoltaic panel 102 or the control electronics 126 (or support plate 124).
- Such devices may, for example, comprise fins for dissipating heat, and / or any other device making it possible to improve the dissipation of heat and / or to accelerate the evacuation of heat outside the photovoltaic system 100.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011526482A JP5497042B2 (ja) | 2008-09-12 | 2009-09-09 | 集積された光起電パネル及びバッテリを備えた光起電システム |
EP09782806A EP2324552A1 (fr) | 2008-09-12 | 2009-09-09 | Systeme photovoltaïque a batterie et panneau photovoltaïque integres |
BRPI0919021A BRPI0919021A2 (pt) | 2008-09-12 | 2009-09-09 | sistema fotovoltaico com bateria e painel fotovoltaico integrados |
CN200980135858.6A CN102150341B (zh) | 2008-09-12 | 2009-09-09 | 具有集成光伏电板和电池的光伏*** |
US13/063,560 US8710349B2 (en) | 2008-09-12 | 2009-09-09 | Photovoltaic system with integrated photovoltaic panel and battery |
ZA2011/01864A ZA201101864B (en) | 2008-09-12 | 2011-03-10 | Photovoltaic system with integrated photovoltaic panel and battery |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0856151A FR2936111B1 (fr) | 2008-09-12 | 2008-09-12 | Systeme photovoltaique a batterie et panneau photovoltaique integres |
FR0856151 | 2008-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010029099A1 true WO2010029099A1 (fr) | 2010-03-18 |
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ID=40651389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/061676 WO2010029099A1 (fr) | 2008-09-12 | 2009-09-09 | Systeme photovoltaïque a batterie et panneau photovoltaïque integres |
Country Status (8)
Country | Link |
---|---|
US (1) | US8710349B2 (fr) |
EP (1) | EP2324552A1 (fr) |
JP (1) | JP5497042B2 (fr) |
CN (1) | CN102150341B (fr) |
BR (1) | BRPI0919021A2 (fr) |
FR (1) | FR2936111B1 (fr) |
WO (1) | WO2010029099A1 (fr) |
ZA (1) | ZA201101864B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9136732B2 (en) | 2011-10-15 | 2015-09-15 | James F Wolter | Distributed energy storage and power quality control in photovoltaic arrays |
KR101306441B1 (ko) * | 2011-11-18 | 2013-09-09 | 엘지이노텍 주식회사 | 태양전지 모듈 |
DE102011121250A1 (de) | 2011-12-15 | 2013-06-20 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben eines Ladungsspeichers eines Elektrofahrzeugs |
US20140059510A1 (en) * | 2012-08-27 | 2014-02-27 | Shin-Guang Chen | Sizing Method for Stand-alone Photovoltaic System |
FR2998094A1 (fr) * | 2012-11-14 | 2014-05-16 | Xavier Duport | Module solaire photovoltaique integrant un systeme de stockage de l'energie produite |
FR3015810B1 (fr) * | 2013-12-24 | 2017-04-28 | Sunna Design | Solution de gestion thermique limitant le vieillissement premature d'une batterie alimentee par une source d'energie photovoltaïque pour application autonome. |
FR3021822B1 (fr) * | 2014-05-27 | 2017-11-03 | Sp2A | Carte electronique, module de conversion d'energie comportant une telle carte, generateur solaire comprenant un tel module |
US10418930B2 (en) * | 2014-07-15 | 2019-09-17 | Panasonic Intellectual Property Management Co., Ltd. | Solar panel unit and solar power generation apparatus |
KR102456811B1 (ko) * | 2015-10-27 | 2022-10-20 | 엘지전자 주식회사 | 에너지 저장 장치의 히터 구동 방법 |
FR3075497B1 (fr) | 2017-12-15 | 2021-02-12 | Commissariat Energie Atomique | Systeme photovoltaique a batterie integree et appareil mobile comportant un tel systeme |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE9101417U1 (fr) * | 1991-02-08 | 1992-06-04 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
US20030038610A1 (en) * | 2001-03-30 | 2003-02-27 | Munshi M. Zafar A. | Structurally embedded intelligent power unit |
US20080088272A1 (en) * | 2006-10-17 | 2008-04-17 | Fu-I Yang | Extendable and angle-adjustable solar charger |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9011149U1 (fr) * | 1990-07-28 | 1990-10-11 | Baudisch, Julieta, 8042 Oberschleissheim, De | |
JPH1154780A (ja) * | 1997-08-05 | 1999-02-26 | Matsushita Denchi Kogyo Kk | 薄膜系太陽電池モジュール |
JP3928397B2 (ja) * | 2001-10-04 | 2007-06-13 | 松下電器産業株式会社 | 電源装置 |
US20030127126A1 (en) * | 2002-01-09 | 2003-07-10 | Tzung-Cheng Yang | Rechargeable solar battery |
EP1369815A1 (fr) * | 2002-06-03 | 2003-12-10 | Dialog Semiconductor GmbH | Bloc de batterie avec un ensemble electroniqué |
DE10244473B4 (de) * | 2002-09-18 | 2010-01-21 | Roto Frank Ag | Photovoltaikvorrichtung mit Wechselrichter und Luftstromkühlung |
CN1316712C (zh) * | 2004-01-15 | 2007-05-16 | 中山大学 | 小型太阳能集成光伏电源 |
US7297866B2 (en) * | 2004-03-15 | 2007-11-20 | Sunpower Corporation | Ventilated photovoltaic module frame |
US8704078B2 (en) * | 2006-06-02 | 2014-04-22 | The Boeing Company | Integrated solar cell and battery device including conductive electrical and thermal paths |
-
2008
- 2008-09-12 FR FR0856151A patent/FR2936111B1/fr active Active
-
2009
- 2009-09-09 WO PCT/EP2009/061676 patent/WO2010029099A1/fr active Application Filing
- 2009-09-09 BR BRPI0919021A patent/BRPI0919021A2/pt not_active IP Right Cessation
- 2009-09-09 EP EP09782806A patent/EP2324552A1/fr not_active Withdrawn
- 2009-09-09 US US13/063,560 patent/US8710349B2/en not_active Expired - Fee Related
- 2009-09-09 CN CN200980135858.6A patent/CN102150341B/zh not_active Expired - Fee Related
- 2009-09-09 JP JP2011526482A patent/JP5497042B2/ja not_active Expired - Fee Related
-
2011
- 2011-03-10 ZA ZA2011/01864A patent/ZA201101864B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9101417U1 (fr) * | 1991-02-08 | 1992-06-04 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
US20030038610A1 (en) * | 2001-03-30 | 2003-02-27 | Munshi M. Zafar A. | Structurally embedded intelligent power unit |
US20080088272A1 (en) * | 2006-10-17 | 2008-04-17 | Fu-I Yang | Extendable and angle-adjustable solar charger |
Non-Patent Citations (1)
Title |
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See also references of EP2324552A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102150341B (zh) | 2014-12-10 |
CN102150341A (zh) | 2011-08-10 |
FR2936111A1 (fr) | 2010-03-19 |
FR2936111B1 (fr) | 2011-07-22 |
JP2012502615A (ja) | 2012-01-26 |
EP2324552A1 (fr) | 2011-05-25 |
ZA201101864B (en) | 2012-02-29 |
BRPI0919021A2 (pt) | 2015-12-08 |
US20110165441A1 (en) | 2011-07-07 |
US8710349B2 (en) | 2014-04-29 |
JP5497042B2 (ja) | 2014-05-21 |
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