Photovoltaic production equipment

Abstract

Photovoltaic production equipment The present invention relates to photovoltaic production equipment (1) comprising: a delivery point (3) electrically connected to an electricity distribution network (4) and comprising a first meter (3a) configured to measure electrical power exchanged between the photovoltaic production equipment (1) and the electricity distribution network (4), an electrical production device (5) electrically connected to the delivery point (3) and comprising at least one photovoltaic module (9) configured to produce electrical power, a charging device (15) electrically connected to the electrical production device (5) and to the delivery point (3) and comprising at least one electric charging station (17),the power generation device (5) being configured to supply the charging device (15) and / or to inject electrical power into the electricity distribution network (4) via the delivery point (3), the charging device (15) also comprising at least one second meter (19a) configured to measure electrical power exchanged via at least one electric charging station (17). Fig.1,

Description

Title of the invention: Photovoltaic production equipment

[0001] The present invention relates to photovoltaic production equipment and more particularly to electrical production equipment comprising an electric charging station for charging electric vehicle batteries.

[0002] The increasing number of electric vehicles also requires an increasing number of charging stations, particularly at people's workplaces, since electric vehicles are most often used for commuting.

[0003] Furthermore, it is also necessary to develop renewable energies in order to ensure a supply of electricity for these vehicles whose environmental impact is limited.

[0004] For this purpose, the use of photovoltaic energy to power charging stations seems an interesting solution.

[0005] However, until recently, it was not possible to use a photovoltaic module to both directly power a charging station and feed some of the energy produced back into the distribution network. Indeed, in the prior art, the electrical energy supplied by the photovoltaic module either powered only the charging station or was fed entirely back into the distribution network, with the charging stations then being powered by the distribution network. This latter configuration therefore required two delivery points.

[0006] It is now permitted by law to directly power a charging station with a photovoltaic module and to reinject the remaining electricity produced into the network via a delivery point.

[0007] However, the management of photovoltaic modules on the one hand and charging stations on the other hand can be carried out by different entities, the network being generally managed by a third entity.

[0008] It is therefore necessary to be able to determine the quantities of electrical energy produced by the photovoltaic modules on the one hand, consumed by the electrical terminals on the other hand and exchanged with the network in order to allow the different entities to bill their service according to the quantities of electricity produced or consumed.

[0009] To this end, the invention relates to a photovoltaic production system comprising: - a delivery point electrically connected to an electricity distribution network and including a first meter configured to measure the electrical power exchanged between the photovoltaic production equipment and the electricity distribution network, - an electricity production device electrically connected to the delivery point and comprising at least one photovoltaic module configured to produce electrical power, - a charging device electrically connected to the electricity production device and the delivery point and comprising at least one electric charging station, the electricity production device being configured to supply the charging device and / or to inject electrical power into the electricity distribution network via the delivery point, the charging device also comprising at least one second meter configured to measure electrical power exchanged via the, at least one, electric charging station.

[0010] The first and second meters make it possible to determine the electrical powers exchanged with the electricity distribution network and the electrical powers exchanged by the charging device and thus to deduce the electrical powers produced by the electrical production device so as to be able to determine the powers produced or consumed by the distribution network and the different elements of the photovoltaic production equipment which can be managed by different entities.

[0011] According to another aspect of the present invention, an electrical power is associated with each electric charging station and the number of second meters is determined according to the capacity of the second meters and the powers of the electric charging stations.

[0012] According to another aspect of the present invention, the first and second meters are communicating meters owned by the public distribution network manager configured to communicate with a remote server and to transmit the measured electrical power readings to the remote server.

[0013] According to another aspect of the present invention, the photovoltaic production equipment also includes an electrical storage unit electrically connected to the delivery point, the electrical production device and the charging device.

[0014] According to another aspect of the present invention, the photovoltaic production equipment also includes an energy and power control and steering unit configured to control the exchanges of electrical power between the delivery point, the electrical production device, the charging device and the electrical storage unit.

[0015] According to another aspect of the present invention, the electrical storage unit is configured to store the electrical power produced by the electrical production device and / or to power the charging device and / or to inject electrical power into the electricity distribution network via the delivery point.

[0016] According to another aspect of the present invention, the, at least one, charging station is intended for the charging of electric vehicles.

[0017] According to another aspect of the present invention, the photovoltaic production equipment includes at least one parking space to which the electric charging station is associated.

[0018] According to another aspect of the present invention, the, at least one, photovoltaic module of the electricity production device is arranged on a shade structure arranged above the, at least one, parking space.

[0019] According to another aspect of the present invention, the photovoltaic production equipment is configured to allow a transfer of electrical power between the electric charging stations and the electricity distribution network via the delivery point to reinject electrical power from motor vehicles electrically connected to the charging stations into the electricity distribution network.

[0020] Other features and advantages of the invention will become more apparent upon reading the following description, given by way of illustrative and non-limiting example, and the accompanying drawings, among which:

[0021] [Fig-1] represents a diagram of a photovoltaic production equipment according to a first embodiment of the present invention;

[0022] [Fig.2] represents a diagram of the electrical equipment of a piece of equipment photovoltaic production according to the present invention;

[0023] [Fig.3] represents a graph of the associated instantaneous power curves res relative to the power supplied by an electrical production device, the power consumed by charging stations and the power reinjected into the electricity distribution network;

[0024] [Fig.4] represents a diagram of a photovoltaic production equipment according to a second embodiment of the present invention.

[0025] In these figures, identical elements bear the same references.

[0026] The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features from different embodiments can also be combined or interchanged to provide other embodiments.

[0027] Fig. 1 represents a first embodiment of a photovoltaic production equipment 1 according to the present invention.

[0028] The photovoltaic production equipment 1 includes a delivery point 3, generally called a delivery point (DP), electrically connected to an electricity distribution network 4, in particular a public network. The delivery point 3 represents the interface between The photovoltaic production equipment 1 and the electricity distribution network 4. The delivery point 3 includes in particular a first meter 3a configured to measure electrical power exchanged between the photovoltaic production equipment 1 and the electricity distribution network 4. The first meter 3a measures on the one hand the electrical power produced by the photovoltaic production equipment 1 and reinjected into the electricity distribution network 4 and on the other hand the electrical power from the electricity distribution network 4 and consumed by the photovoltaic production equipment 1.

[0029] The photovoltaic production equipment 1 also includes a device for The power generation device 5 is electrically connected to the delivery point 3, for example via electrical cables 8 and electrical equipment such as an electrical cabinet 19. The power generation device 5 includes at least one photovoltaic module 9 configured to produce electrical power. In general, the power generation device 5 comprises a plurality of photovoltaic modules 9 arranged, for example, on a support 11 such as a carport. The support 11 is, for example, positioned above a parking space for a motor vehicle 13, in particular an electric or hybrid vehicle. The support 11 is, for example, configured to allow the photovoltaic modules 9 to be oriented in a preferred direction. The support 11 may, in particular, be motorized and configured to adapt the orientation of the photovoltaic modules 9 according to the position of the sun (tracking function) to optimize the photovoltaic production of the modules 9.

[0030] The electrical production device 5 also includes one or more inverters 16 configured to convert the direct current produced by the photovoltaic modules 9 into alternating current to be transmitted to the other elements of the photovoltaic production equipment 1, for example via the electrical cables 8. The inverters 16 are generally arranged near the photovoltaic modules 9 or even integrated into the photovoltaic modules 9.

[0031] The photovoltaic production equipment 1 also includes a device for load 15 electrically connected to the electrical production device 5 and to the delivery point 3, for example via electrical cables 8 and an electrical cabinet 19.

[0032] The charging device 15 comprises at least one electric charging station 17, or a plurality of electric charging stations 17 in the example of [Fig. 1]. The electric charging stations 17 are, for example, associated respectively with parking spaces, in particular the parking spaces located under the canopy 11 of the electricity generation device 5. The different electric charging stations 17 may be identical or may have different power ratings, for example adapted to different types of vehicles or different charging modes (fast charging, etc.).

[0033] The charging device 15 is configured to be powered by the power generation device 5 or by the electricity distribution network 4 via the delivery point 3 if the electrical power supplied by the power generation device 5 is insufficient. The power generation device 5 is therefore configured to supply the charging device 15 and / or to inject electrical power into the electricity distribution network 4 via the delivery point 3 if the power produced by the power generation device 5 is greater than the power required by the charging device 15.

[0034] The charging device 15 includes, for example, the electrical cabinets 19 mentioned above, which are configured to provide electrical connections between the charging device 15, the delivery point 3 and the electrical production device 5.

[0035] The electrical cabinets 19 include, in particular, electrical transformers 21 (visible in [Fig. 2]) configured to adapt the electrical voltage between the electricity distribution network on the one hand and the electrical production device 5 and the load device 15 on the other. Indeed, the electrical voltage of the electricity supply network 4 is much higher than the voltage supplied by the electrical production device 5 or the voltage of the load device 15, for example 20 kV for the voltage of the electricity distribution network 4 and a few hundred volts for the voltages of the electrical production device 5 or the load device 15.

[0036] The electrical cabinets may also include circuit breakers 23 (visible in [Fig.2]) to prevent overvoltages that could damage the equipment of the photovoltaic production equipment 1.

[0037] The electrical cabinets may also include general low voltage switchboards 25 (visible in [Fig.2]) associated with the charging device 15 to manage the distribution of electrical power between the electric charging stations 17.

[0038] The charging device 15 also includes at least one second meter 19a (in addition to the meter 3a of the delivery point 3) configured to measure the electrical power exchanged by the charging device 15 via at least one electric charging station 17. The number of second meters 19a depends on the number and power of the electric charging stations 17. This is because an electrical meter has a capacity corresponding to the maximum power it can transmit. Thus, a single second meter 19a can be associated with several electric charging stations 17 if the sum of the powers of the different charging stations 17 associated with the second meter 19a does not exceed the capacity of the second meter 19a. In the case of [Fig. 1], the charging device includes two second meters 19a.

[0039] The second counters 19a are for example arranged in the electrical cabinets 19.

[0040] The second meters 19a are configured to measure the electrical power exchanged at the electric charging stations 17. This electrical power includes in particular the electrical power supplied by the electrical production device 5 to the electric charging stations 17 and the electrical power supplied by the electricity distribution network 4 to the electric charging stations 17 via the delivery point 3.

[0041] Figure 2 shows a diagram of the various electrical components of the photovoltaic production equipment 1. The photovoltaic production equipment 1 therefore comprises one or more photovoltaic modules 9 connected to one or more inverters 16 which convert the direct current voltage supplied by the photovoltaic modules 9 into alternating current voltage. The inverters 16 are connected to a transformer 21 which adapts the voltage supplied by the inverters 16 to the voltage of the electricity distribution network 4. This voltage is then injected into the electricity distribution network 4 via the delivery point 3. The electrical power transmitted to the electricity distribution network 4 is measured by the first meter 3a at the delivery point 3.

[0042] The photovoltaic production equipment 1 may also include an additional transformer 21' to adapt the voltage supplied to the electric charging stations 17. The transformer 21 allows for example an 800V / 20kV conversion and the additional transformer 21' an 800V / 400V conversion.

[0043] The photovoltaic production equipment 1 also includes a circuit breaker 23, also called a general control and protection device (AGCP), one or more second meters 19a for measuring the electrical power exchanged at the electric charging stations 17.

[0044] The use of one or more second meter(s) 19a configured to measure the electrical power exchanged via the electric charging stations 17 and in particular drawn from the electric charging stations 17 allows in combination with the first meter 3a which allows to measure the electrical power exchanged with the electricity distribution network 4 to deduce the electrical power produced by the electrical production device 5.

[0045] The first meter 3a and the second meters 19a are, for example, communicating meters configured to transmit the measured electrical power readings to a remote server, for example, a server of the electricity distribution network operator 4. The remote server may include a processing unit configured to determine, from the readings of the first meter 3a and the second meters 19a, the power produced by the generating device electrical 5 over time, that is to say to reconstruct the load curves of the photovoltaic modules 9.

[0046] Figure 3 represents an example of the temporal evolution of the powers ins tantanates associated respectively with the power supplied by an electrical production device (C1 curve), with the power consumed by charging stations (C2 curve) and with the power reinjected into the electricity distribution network (C3 curve).

[0047] The first meter 3a provides, for example, the reading associated with the curve C3', while the second meters 19a provide the reading associated with the curve C2'. It is thus possible to obtain the curve Cl' corresponding to the power produced by the electrical production device 5 from the measurements of the first 3a and second 19a meters.

[0048] This determination of the electrical power produced by the photovoltaic modules 9 over time makes it possible to determine a remuneration for the manager of the electrical production device 5 without the electrical power produced by the photovoltaic modules 9 and consumed directly by the charging device 15 impacting this determination of remuneration.

[0049] Such a configuration thus makes it possible to have a photovoltaic production equipment 1 comprising an electrical production device 5 comprising photovoltaic modules 9 producing electrical power and a charging device 15 comprising charging terminals 17 consuming electrical power connected to a single delivery point 3.

[0050] The electrical power produced by the photovoltaic modules 9 can thus be used directly by the electric charging stations 17 without going through the electricity distribution network 4 while allowing the manager of the electricity production device 5 (which may be different from the manager of the charging device 15 and the manager of the electricity distribution network (which may be a third entity)) to determine the power produced by the photovoltaic modules 9 and thus be able to determine the associated remuneration.

[0051] According to a particular embodiment shown in [Fig.4], the photovoltaic production equipment 1 also includes an electrical storage unit 29 electrically connected to the delivery point 3, to the electrical production device 5 and to the charging device 15, for example via electrical cables 8 and possibly via an electrical cabinet 19. The electrical storage unit 29 makes it possible in particular to store part or all of the electrical power supplied by the electrical production device 5, in particular so that it can be used by the charging device 5 at a later time.

[0052] Such an electrical storage unit 29 is particularly useful when the charging of motor vehicle batteries 13 must be done at night when the electrical production device 5 is not supplying electrical power.

[0053] The electrical storage unit 29 can also be used to store the electrical power supplied by the electricity distribution network 4 for later use by the charging device 15, particularly when the cost of the electrical power supplied by the electricity distribution network 4 varies over time in order to optimize costs.

[0054] According to a particular embodiment, the photovoltaic production equipment 1 is configured to participate in the stability of the electricity distribution network 4 by reinjecting electrical power into the electricity distribution network 4 when necessary.

[0055] The photovoltaic production equipment 1 includes, for example, an energy and power control and management unit 31, also called "energy management system (EMS) / power management system (PMS)" in English, configured to control the exchanges of electrical power between the delivery point 3, the electrical production device 5, the charging device 15 and the electrical storage unit 29 in order to participate in the stability of the electricity distribution network 4.

[0056] The electrical power fed back into the electricity distribution network 4 can originate from the electricity generation device 5, the electrical storage unit 29, or the batteries of motor vehicles 13 connected to the electric charging stations 17 (vehicle-to-grid function). The first meter 3a and the second meters 19a then allow the electrical power fed back into the electricity distribution network to be measured and for it to be determined whether this electrical power is supplied by the batteries of the motor vehicles 13 connected to the charging stations 17.

[0057] Thus, the first 3a and second 19a meters make it possible to manage a photovoltaic production equipment 1 comprising an electrical production device 5 and a charging device 15 by requiring only a single delivery point 3. This configuration also makes it possible to contribute to the stability of the electricity distribution network 4 by reinjecting electrical power into the electricity distribution network 4 from the photovoltaic production equipment 1 when needed.

Claims

Claims

1. Photovoltaic production equipment (1) comprising: - a delivery point (3) electrically connected to an electricity distribution network (4) and comprising a first meter (3a) configured to measure an electrical power exchanged between the photovoltaic production equipment (1) and the electricity distribution network (4), - an electrical production device (5) electrically connected to the delivery point (3) and comprising at least one photovoltaic module (9) configured to produce an electrical power, - a charging device (15) electrically connected to the electrical production device (5) and to the delivery point (3) and comprising at least one electrical charging terminal (17), the electrical production device (5) being configured to power the charging device (15) and / or to inject an electrical power into the electricity distribution network (4) via the delivery point (3),wherein the charging device (15) also comprises at least one second meter (19a) configured to measure an electrical power exchanged via the at least one electrical charging terminal (17) and wherein an electrical power is associated with each electrical charging terminal (17) and the number of second meters (19a) is determined as a function of the capacity of the second meters (19a) and the powers of the electrical charging terminals (17).,

2. Photovoltaic production equipment (1) according to claim 1 wherein the first (3a) and second (19a) meters are communicating meters configured to communicate with a remote server and to transmit the measured electrical power readings to the remote server.

3. Photovoltaic production equipment (1) according to one of the preceding claims also comprising an electrical storage unit (29) electrically connected to the delivery point (3), to the electrical production device (5) and to the charging device (15).

4. Photovoltaic production equipment (1) according to claim previous also comprising an energy and power control and management unit (31) configured to control the exchanges of electrical power between the delivery point (3), the electrical production device (5), the charging device (15) and the electrical storage unit (29).

5. Photovoltaic production equipment (1) according to the preceding claim in which the electrical storage unit (29) is configured to store the electrical power produced by the electrical production device (5) and / or to supply the charging device (15) and / or to inject electrical power into the electricity distribution network (4) via the delivery point (3).

6. Photovoltaic production equipment (1) according to one of the preceding claims in which the at least one charging terminal (17) is intended for charging electric vehicles (13).

7. Photovoltaic production equipment (1) according to one of the preceding claims comprising at least one parking space with which the electric charging station (17) is associated.

8. Photovoltaic production equipment according to the preceding claim in which the at least one photovoltaic module (9) of the electrical production device (5) is arranged on a shade (11) arranged above the at least one parking space.

9. Photovoltaic production equipment (1) according to one of the preceding claims in which the photovoltaic production equipment (1) is configured to allow a transfer of electrical power between the electrical charging terminals (17) and the electricity distribution network (4) via the delivery point (3) to reinject electrical power from motor vehicles (13) electrically connected to the charging terminals (17) into the electricity distribution network (4).

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