Rechargeable mobile power station

Abstract

The invention relates to a rechargeable mobile power supply station (100) for powering at least one electrically consuming device, which includes a rechargeable internal power source (4). The rechargeable mobile power supply station is designed to operate in a charging and a discharging configuration. In the charging configuration, the rechargeable internal power source is charged by means of at least one first external source delivering single-phase alternating current, and optionally by means of at least one second external source, for example, a solar panel, delivering direct current. In the discharging configuration, the rechargeable internal power source discharges to power at least one electrically consuming device. Abstract figure: Figure 2

Description

Title of the invention: Rechargeable mobile power station technical field

[0001] The invention relates to a rechargeable mobile power station.

[0002] It relates more particularly to a rechargeable mobile power station comprising an internal rechargeable power source: capable of being charged by at least one first external source delivering a single-phase alternating current, and optionally by at least one second external source delivering a direct current; and delivering a single-phase alternating output current having an output power.

[0003] The invention also relates to a rechargeable power supply assembly comprising several rechargeable mobile power supply stations connected in parallel, which rechargeable power supply assembly being capable of delivering a total single-phase alternating current output having a total output power equal to the sum of the output powers of the single-phase alternating currents output from each of the rechargeable mobile power supply stations.

[0004] The invention finds a favorite, and not limiting, application for the power supply of at least one single-phase electrical consumer device, and which can for example be used in the fields of Building and Public Works, Events, etc. Previous technique

[0005] As is known, rechargeable mobile power stations are self-contained power supply devices used in various fields, such as construction and public works or event management. These rechargeable mobile power stations comprise an internal rechargeable power source used to generate a power signal that supplies electrical devices connected to the rechargeable mobile power stations and located in areas where the electrical distribution network is not accessible, particularly outdoors. By its very nature, this type of power station has the advantage of being easily portable / transportable.

[0006] For rechargeable mobile power stations, there is a constant need to offer a satisfactory compromise between: their size, their mobility, the charging capacity of the internal rechargeable electrical source, the power of the delivered power supply signal. Summary of the invention

[0007] To this end, the invention proposes a rechargeable mobile power supply for powering at least one electrically consuming device, the rechargeable mobile power supply station comprising:

[0008] - at least one first input socket provided for connection with a first external source that delivers a single-phase alternating current,

[0009] - at least one AC-DC converter having a connected input electrically connected to at least one first input and one output, and converting the single-phase alternating current into a first external direct current,

[0010] - an inverter having an input and an output,

[0011] - an internal rechargeable electrical source comprising one or more batteries rechargeable,

[0012] - a distribution line having at least one first connected end electrically connected to the output of at least one AC-DC converter, a second end electrically connected to the internal rechargeable power source, and a third end electrically connected to the input of the inverter,

[0013] - one or more output sockets, each of which is electrically connected to the inverter output, and which are intended for electrical connection with at least one electrical consuming device;

[0014] the rechargeable mobile power station comprising a control unit which is at least in communication with the internal rechargeable power source, and which is configured to switch the rechargeable mobile power station between:

[0015] - a charging configuration, during which the internal electrical source rechargeable is charged by a direct current charging current, which includes at least the first external direct current delivered at the output of at least one AC-DC converter and flowing from at least one first end to the second end of the distribution line, and

[0016] - a discharge configuration, during which the internal electrical source rechargeable generates an internal direct current which flows from the second end to the third end of the distribution line, then is converted by the inverter into a single-phase alternating output current electrically powering at least one consuming electrical device.

[0017] Hereafter and unless otherwise indicated, "station" means "rechargeable mobile power station".

[0018] With reference to French standards for electrical installations, at least one first input socket may, for example, include at least one 16 A socket or at least one 32 A socket for an electrical voltage of 230 V (this electrical voltage corresponding to the voltage of the single-phase low-voltage distribution network in France). Similarly, at least one output socket may include at least one 16 A socket or at least one 32 A socket. The maximum potential power on at least one first input socket is therefore either 3.68 kW or 7.32 kW.

[0019] At least one AC-DC converter has an AC-DC converter saturation power. In order to prevent single-phase alternating current from being delivered by at least one first external source at a power close to this maximum potential power, which could damage at least one first input socket, at least one AC-DC converter is chosen so that its AC-DC converter saturation power is less than the maximum potential power.

[0020] In other words, at least one AC-DC converter is chosen according to the type of at least one first input socket to which it is electrically connected, i.e. whether the at least one first input socket corresponds to a 16 A socket or a 32 A socket.

[0021] Thus, the single-phase alternating current delivered by at least one first external source has a power less than or equal to the saturation power of the AC-DC converter, and therefore less than the maximum potential power.

[0022] The inverter has a saturation power such that the power of the internal direct current delivered by the internal rechargeable electrical source is less than or equal to the saturation power of the inverter.

[0023] The distribution line may, for example, include: - a positive busbar having at least one first positive end electrically connected to a positive output terminal of at least one AC-DC converter, a second positive end electrically connected to a positive terminal of the internal rechargeable power source, and a third positive end electrically connected to a positive terminal of the inverter, and - a negative busbar having at least one first negative end electrically connected to a negative output terminal of at least one AC-DC converter, a second negative end electrically connected to a negative terminal of the internal rechargeable electrical source, and a third negative end electrically connected to a negative terminal of the inverter; at least one first positive end and at least one first negative end being comparable to at least one first end of the distribution line, the second positive end and the second negative end being comparable to the second end of the distribution line, and the third positive end and the third negative end being comparable to the third end of the distribution line.

[0024] As stated above, the control unit is at least in communication with the internal rechargeable electrical source for the purpose of controlling and monitoring it.

[0025] It is also designed to control the switching of the station between its charging and discharging configurations. In one embodiment, the station includes, for example, a switch button having a press position and a release position such that each station configuration is associated with a position of the switch button. The switch button is at least in communication with the control unit, if not electrically connected to it. Thus, when an operator presses the switch button to change it from its press position to its release position, or vice versa, the control unit receives a control signal related to the position of the switch button and controls the switching of the station from one of its two configurations to the other.

[0026] The control unit can be configured, for example, to receive a plurality of information relating, but not limited to: - at least one rechargeable battery included in the internal rechargeable power source, such as: its charge level, the voltage across its terminals or across the terminals of each of the modules or cells it comprises, the number of charge / discharge cycles it has undergone, its temperature, etc.; or - the distribution line, such as the direct current for charging and the internal direct current that flows inside respectively during the charging configuration and the discharging configuration.

[0027] The control unit may, for example, be responsible for monitoring the direction of flow of the charging DC current during the charging configuration and that of the internal DC current during the discharging configuration. If the charging DC current does not flow from at least one end to the second end, or if the internal DC current does not flow from the second end to the third end, then the control unit is configured to shut down the station.

[0028] The control unit may, for example, correspond to a battery management system (BMS). The battery management system may, for example, include a screen for displaying the aforementioned information. In one variant, the screen may be a touchscreen with which the user can interact, for example, to switch the station from its charging configuration to its discharging configuration. and vice versa; this touch control replacing the switching button.

[0029] The control unit may also correspond to an electronic board which includes a processor and which may optionally be connected to a screen.

[0030] In one embodiment of the invention, the control unit is positioned between the second and third ends. It is then connected in series with the inverter. When the distribution line comprises a positive busbar and a negative busbar, the control unit is positioned between the second negative end and the third negative end of the negative busbar. In other words, the control unit is electrically connected on one side to the negative terminal of the internal rechargeable power source, and on the other side to the negative terminal of the inverter.

[0031] Advantageously, the electrical architecture of the station is based on the association of simple electrical equipment allowing to supply electrical consumer devices with single-phase alternating output currents having satisfactory output powers, while making it easily portable / transportable.

[0032] According to one embodiment of the invention, the distribution line comprises a first switch which electrically connects at least one first end and the second end, and a second switch which electrically connects the second end to the third end, and the control unit is in communication with the first switch and the second switch such that: - in the charging configuration, the control unit drives the first switch to be in a closed position, and drives the second switch to be in an open position, and - in the discharging configuration, the control unit drives the first switch to be in an open position, and drives the second switch to be in a closed position.

[0033] In other words, in the charging configuration, the inverter is not electrically connected to the distribution line, since the second switch is in its open position. The internal rechargeable power source is connected only to at least one first external source, and the direct current for charging flows from at least one first external source to the internal rechargeable power source in order to charge it. In the discharging configuration, since the first switch is in its open position, at least one first external source is not electrically connected to the distribution line.The internal rechargeable power source is connected only to the inverter; and the internal direct current flows from the internal rechargeable power source to the inverter in order to be converted by the inverter into a single-phase alternating current output, which will ultimately be used to power at least one electrically consuming device.

[0034] In one embodiment, the control unit is configured to switch the first switch from its open position to its closed position and the second switch from its closed position to its open position when it switches the station from its discharge configuration to its charge configuration. Conversely, the control unit is configured to switch the first switch from its closed position to its open position and the second switch from its open position to its closed position when it switches the station from its charge configuration to its discharge configuration.

[0035] In one embodiment of the invention, during the charging configuration, the control unit can advantageously switch the first switch from its closed position to its open position in order to stop the charging of the internal rechargeable power source should a malfunction of the station occur. Similarly, if the station is operating during the discharging configuration, the control unit can stop the power supply to at least one electrically consuming device by switching the second switch from its closed position to its open position.

[0036] According to one feature of the invention, the rechargeable mobile power station includes at least one second input socket provided for connection with a second external source which delivers a direct current, and wherein the rechargeable mobile power station includes at least one DC-DC converter having an input electrically connected to at least one second input socket and an output for converting the direct current into a second external direct current, said output of at least one DC-DC converter being electrically connected to at least one other first end of the distribution line;such that when the rechargeable mobile power station is in its charging configuration, the internal rechargeable power source is charged by the charging direct current which includes the second external direct current delivered on the output of at least one DC-DC converter and which flows from at least one other first end to the second end of the distribution line.

[0037] Advantageously, the station's internal rechargeable power source can also be electrically charged, during the charging configuration, by means of at least: - a first external source, i.e., a single-phase alternating current power supply; or - a second external source, i.e. a direct current power supply.

[0038] The internal rechargeable electrical source can therefore, for example, be charged simultaneously by at least one first external source and at least one second external source. Thus, the DC charging current can correspond to a sum of the at least one first external DC current with the at least one second external DC current.

[0039] At least one DC-DC converter is a current regulator advantageously enabling the stabilization of at least one second external DC current supplied by at least one second external source.

[0040] The at least one second external source may, for example, correspond to one or more solar panels which convert solar energy into electrical energy.

[0041] When at least one second external source corresponds to one or more solar panels, at least one DC-DC converter may correspond, for example, to a solar regulator of the MPPT (Maximum Power Point Tracking) type.

[0042] According to one embodiment of the invention: - at least one first input socket includes several first input sockets, - at least one AC-DC converter includes several AC-DC converters, and - at least one first end of the distribution line includes several first ends; such that each of the several AC-DC converters is connected respectively at the input to one of the first several input sockets and is connected respectively at the output to one of the first several ends.

[0043] In other words, and advantageously, during the charging configuration, the internal rechargeable electrical source can be recharged by several first external sources. Each of the several first external sources is electrically connected to a separate AC-DC converter from among the several AC-DC converters by being plugged into a separate first input socket from among the several first input sockets.

[0044] Each of the AC-DC converters then delivers a first external DC current to the distribution line. Thus, the DC charging current used to recharge the internal rechargeable electrical source corresponds to a sum of the first several external DC currents.

[0045] In one embodiment, when at least one second external source is also electrically connected to the station, then the DC charging current is equal to the sum of the first external DC currents with the at least one second external DC current.

[0046] According to one embodiment of the invention: - at least one first input socket includes several first input sockets, - at least one AC-DC converter includes a single AC-DC converter, - at least one first end of the distribution line includes a first end connected to the output of the single AC-DC converter, and the rechargeable mobile power station includes an electrical switch having several inputs connected respectively to the several first input sockets, and a single output electrically connected to the input of the single AC-DC converter; the electrical switch allowing selection of which of its several inputs is connected to its output.

[0047] In other words, in one embodiment, the multiple AC-DC converters that the station may include are replaced by a single AC-DC converter combined with an electrical switch to which the first several external sources are connected via the first several input sockets. Advantageously, the electrical switch reduces the number of AC-DC converters required in the station, thus improving its portability and mobility.

[0048] The electrical switch chosen is for example a switch having a saturation power of 7.5 kW so that its inputs are suitable for both first 16 A input sockets and first 32 A input sockets.

[0049] In one embodiment, the electrical switch is controlled by the control unit. The selection of the first external source from among the first several external sources to be electrically connected to the single AC-DC converter via the electrical switch then depends on control signals transmitted by the control unit to the electrical switch. The control unit can, for example, automatically select one of the first external sources based on information it receives relating to the charge level of the internal rechargeable electrical source and the single-phase alternating current (or the power it presents) capable of being delivered by each of the first several external sources.In other words, the control unit ensures that the internal rechargeable electrical source is charged by means of a first external source delivering a single-phase alternating current in accordance with its current charge level, so as not to overcharge it.

[0050] Another advantage of the electrical switch is that no return current (or voltage) occurs at the first input sockets which would not be electrically connected to a first external source, thus protecting an operator against electrical risks.

[0051] According to one embodiment of the invention, the internal rechargeable electrical source comprises four rechargeable batteries electrically connected to each other in a 2P2S configuration in which two subsets are connected in parallel, each comprising two rechargeable batteries connected in series.

[0052] Connecting two rechargeable batteries in series advantageously increases their voltage without increasing their capacity; whereas connecting the two battery subsets in parallel advantageously increases the total capacity of the internal rechargeable power source as well as its lifespan. The total capacity of the internal rechargeable power source is equal to twice the capacity of a single battery subset if all the batteries are identical (i.e., of the same type).

[0053] According to one embodiment of the invention, the internal rechargeable electrical source comprises four rechargeable batteries connected in series.

[0054] According to one embodiment of the invention, the rechargeable battery or batteries are associated with a temperature measuring device to measure a battery temperature, and with a heating system connected to a thermal regulation system which is configured to send the heating system a heating setpoint based on the battery temperature measured by the temperature measuring device in order to maintain the battery temperature within a predefined temperature range.

[0055] It is known that certain battery technologies, such as NMC (Nickel, Manganese, Cobalt) batteries, exhibit optimal performance when their battery temperature is within a predefined temperature range, for example, between 20°C and 25°C. Outside this temperature range, the performance of these battery technologies is degraded. A battery temperature that is too low or too high can also lead to premature battery aging.

[0056] In embodiments for which such battery technologies are considered, and in order to remedy this problem during charging and discharging configurations, at least one battery of the internal rechargeable electrical source is associated with a temperature measurement device, such as a temperature sensor for example, and with a heating system, for example an electric heating pad.

[0057] The heating device is at least in communication with a thermal control system (or, if not, electrically connected to it), which thermal control system is also at least in communication with the temperature measuring device to receive a measurement of the battery temperature from at least one rechargeable battery. Depending on the measured battery temperature, the thermal control system transmits to the heating system of at least one rechargeable battery a heating setpoint in order to maintain the temperature of at least one rechargeable battery within the temperature range for which its operation is optimal.

[0058] In one embodiment, the thermal control system is configured, for example, to: - not to transmit a heating instruction to the heating device of at least one rechargeable battery when the measured battery temperature is greater than or equal to a low temperature threshold; and - transmit a heating instruction to the heating device of at least one rechargeable battery when the measured temperature is below the low temperature threshold.

[0059] In the second case, the thermal regulation system can for example command the heating device to: heat at least one rechargeable battery until its temperature reaches a high temperature threshold and then, once this high temperature threshold is reached; and no longer heat at least one rechargeable battery until its temperature falls below the low temperature threshold.

[0060] The lower temperature threshold can, for example, be equal to 17°C, and the upper temperature threshold can, for example, correspond to ambient temperature (i.e., 25°C).

[0061] When the internal rechargeable power source comprises several rechargeable batteries, each rechargeable battery includes its own temperature measuring device and its own heating device. Each temperature measuring device transmits the battery temperature of the rechargeable battery to which it is associated to the thermal control system. Based on the received battery temperature measurements, the thermal control system can send a heating command to one or more heating devices if their associated battery has a battery temperature below the low temperature threshold.

[0062] According to one embodiment of the invention, the heating system of the or each of the rechargeable batteries and the thermal regulation system are electrically connected to at least one first input socket via an internal power line to allow power supply from the first external source.

[0063] In other words, at least one first input socket is used to send the single-phase alternating current delivered by at least one first external source on the one hand to the alternating-direct current converter (so that it is converted into a first external direct current); and on the other hand to the heating device of at least one rechargeable battery and to the thermal regulation system via the internal power line.

[0064] When the station includes, for example, several first input sockets, each connected to an AC-DC converter, one of them is connected both electrically to the AC-DC converter, to the heating device of at least one rechargeable battery, and to the thermal regulation system (via the internal power line); the other first input sockets are electrically connected only to their respective AC-DC converter.

[0065] In one embodiment, the internal power supply line includes a switch such that one terminal of said switch is electrically connected to at least one first input socket, and its other terminal is electrically connected to the heating device of at least one rechargeable battery and to the thermal control system. The switch is configured to be in a closed position as long as the battery temperature measured by the heating device of at least one rechargeable battery does not become equal to or greater than a critical temperature. If this occurs, the switch is configured to switch from its closed position to its open position so that the heating device of at least one rechargeable battery and the thermal control system are no longer electrically powered.Such a situation can occur, for example, in the event of a malfunction of the thermal regulation system which continuously transmits a heating command to the heating device of at least one rechargeable battery when the latter has a temperature greater than or equal to the high temperature threshold, thus causing the latter to overheat.

[0066] This critical temperature can, for example, be equal to 40°C.

[0067] In one embodiment, the switching of the switch from its open position to its closed position is controlled by the control unit, which is, for example, in communication with the temperature measuring device of at least one rechargeable battery. This device transmits the measured battery temperature to the control unit. Once the measured temperature is received, the control unit compares it with the critical temperature to determine whether or not to trigger the switch to open. When the internal rechargeable power source comprises several rechargeable batteries, the control unit triggers the switch to open if at least one battery temperature measurement, among the several battery temperature measurements it receives from the various temperature measuring devices, is above the critical temperature.

[0068] In another embodiment, the switch is a thermal contact shaped to measure a battery temperature of at least one rechargeable battery, and to switch from its closed position to its open position if the measured battery temperature becomes greater than or equal to the critical temperature.

[0069] According to one embodiment of the invention, the rechargeable mobile power station comprises:

[0070] - a current measuring device configured to measure and transmit to the unit to control the DC charging current during the charging configuration or the internal DC current during the discharging configuration, and - one or more voltage measuring devices which are associated with the respective rechargeable battery or batteries to measure and transmit to the control unit a voltage at the terminals of the respective rechargeable battery or batteries; the control unit being configured to determine a charge level associated with the rechargeable battery or batteries based on: their corresponding voltage and DC charging current during the charging configuration, or their corresponding voltage and internal DC current during the discharging configuration.

[0071] The current measurement device may, for example, correspond to a shunt positioned at the level of the distribution line.

[0072] In one embodiment, the control unit is also configured to determine, for example, the total charge level of the internal rechargeable electrical source.

[0073] In one embodiment of the invention, the rechargeable mobile power station includes the current measuring device, but does not include a voltage measuring device. The voltage measurement of the one or more rechargeable batteries is performed directly by the control unit, which is, for example, wired directly to the rechargeable battery or batteries, for example by means of a wire harness.

[0074] In one embodiment of the invention, the voltage measurement device(s) associated with the respective rechargeable battery(ies) are configured to measure and transmit to the control unit a voltage across each module of the rechargeable battery to which it is associated, or a voltage across each cell of each module of the rechargeable battery to which it is associated. From the DC charging current or the internal DC current, and the voltage measurements across each module or each cell of the rechargeable battery(ies), the control unit then determines the voltage across said rechargeable battery(ies).

[0075] According to one embodiment of the invention, the control unit is configured to, in the charging configuration, compare the charge level of the or each of the several rechargeable batteries with a maximum charge level, and to stop charging the internal rechargeable power source when the charge level of the or the charge of each of the multiple rechargeable batteries becomes greater than or equal to the maximum charge level.

[0076] By stopping the charging of the internal rechargeable electrical source when the charge level of the or one of the several rechargeable batteries reaches the maximum charge level, the control unit advantageously prevents any risk of battery overcharge.

[0077] In the embodiment for which the first switch and the second switch are provided in the distribution line, the control unit can, for example, during the charging configuration, command the opening of the first switch to stop the charging of the internal rechargeable electrical source when the charge level of the or each of the several rechargeable batteries becomes greater than the maximum charge level.

[0078] According to one embodiment of the invention, the control unit is configured to, in the discharge configuration, compare the charge level of the or each of the several rechargeable batteries with a minimum charge threshold, and to stop the power supply to at least one consumer device by the internal rechargeable power source when the charge level of the or each of the several rechargeable batteries becomes below the minimum charge threshold.

[0079] Thus, any risk of a complete discharge of the or one of the several rechargeable batteries of the internal rechargeable electrical source is advantageously avoided.

[0080] In the embodiment for which the first switch and the second switch are provided in the distribution line, the control unit can, for example, during the discharge configuration, command the opening of the second switch to stop the supply of at least one electrical consumer device when the charge level of the or each of the several rechargeable batteries becomes below the minimum charge threshold.

[0081] According to one embodiment of the invention, the internal rechargeable electrical source comprises several rechargeable batteries, and the control unit is configured to, in the discharge configuration, control that the several rechargeable batteries discharge simultaneously.

[0082] When the multiple rechargeable batteries do not discharge simultaneously, the control unit is configured to stop the power supply to at least one electrically consuming device.

[0083] In one embodiment of the invention, the station includes an emergency stop button which an operator presses to manually stop the station, whether it is in its charging or discharging configuration. For example, pressing the emergency stop button can cause the first switch (or second switch, respectively) to switch from its closed position to its open position. open when the station is operating in its charging configuration (respectively its discharging configuration).

[0084] According to one embodiment of the invention, the rechargeable mobile power station includes at least one third input socket provided for connection with a third external source and electrically connected to the output socket(s), so as to be able to power at least one consumer device directly from the third external source by bypassing the inverter.

[0085] In other words, at least one third external source is electrically connected directly to the output socket(s) via at least one third input socket; the station can then be considered as a single wire. This at least third external source could, for example, be a power supply providing single-phase alternating current.

[0086] Advantageously, at least one third external source can be used, during the charging configuration, to electrically power at least one electrically consuming device while at least one first external source, and optionally at least one second external source, are used to charge the internal rechargeable electrical source.

[0087] In one embodiment of the invention, the rechargeable mobile power station includes at least one fourth input socket for electrically connecting an alerting device to the control unit, which can then control said alerting device. The alerting device can, for example, be used to alert an operator to a low charge level in the battery or batteries included in the internal rechargeable power source. Thus, when the control unit determines that the charge level of the rechargeable battery or batteries in the internal rechargeable power source falls below the minimum charge threshold, the control unit transmits an activation signal to the alerting device in order to activate it. The alerting device can, for example, be an audible alert device such as an alarm. The alerting device can also be, for example, a flexible electroluminescent strip..

[0088] According to one feature of the invention, the rechargeable mobile power station comprises a mobile chassis on which are arranged at least one first input socket, at least one AC-DC converter, the inverter, the internal rechargeable power source, the distribution line, the one or more output sockets and the control unit.

[0089] Advantageously, thanks to the mobile chassis, all the equipment constituting the station is easily movable and transportable. The same station can therefore be used, depending on the needs, to supply electrical power-consuming devices located on the same site but in different locations; or well located in different sites. This mobility of the station also allows its electrical connection as close as possible to at least one electrical consuming device while freeing itself from installation / uninstallation constraints in areas or locations with a limited surface area or volume.

[0090] According to one embodiment of the invention, the inverter has an inverter saturation power of between 7 and 11 kW, and for example equal to 7.2 kW or equal to 11 kW.

[0091] In one particular embodiment, the station provides a single-phase alternating current output with a power output of up to 7.2 kW on its output socket(s) to supply at least one electrically consuming device. In a second particular embodiment, the station provides a single-phase alternating current output with a power output of up to 11 kW on its output socket(s) to supply at least one electrically consuming device.

[0092] Thus, the station advantageously allows for the electrical supply of consumer electrical devices for single-phase alternating output currents with satisfactory output powers, while being easily transportable thanks to an architecture based on the association of simple electrical equipment.

[0093] According to one embodiment of the invention, the rechargeable mobile power station includes a geolocation device shaped to geolocate the rechargeable mobile power station, and a transmitter connected to the geolocation device and controlled by the control unit to transmit geolocation data from the geolocation device to a remote server.

[0094] Geolocation contributes to simplified management by an operator of a fleet of stations, through the knowledge it provides regarding the areas where they are stored and the intervention areas where they are used.

[0095] Geolocation data can, for example, be transmitted to the remote server by the sender according to a communication protocol compatible with the 4G standard.

[0096] According to one embodiment of the invention, the rechargeable mobile power supply station includes at least one parallelization socket connected to an inverter processing unit.

[0097] The invention also relates to a rechargeable power supply assembly for powering at least one electrically consuming device, the rechargeable power supply assembly comprising: - several rechargeable mobile power supply stations, each comprising at least one parallel connection socket as previously mentioned; and - a parallelization box comprising several input sockets and at least one output socket which is connected to the several input sockets; in which: - each of the several rechargeable mobile power stations has at least one parallel connection socket which is connected to at least one parallel connection socket of at least one other rechargeable mobile power station, so that the inverter processing units of the several rechargeable mobile power stations are connected together, - each of the several rechargeable mobile power stations has at least one output socket which is connected to one of the several input sockets of the parallel connection box, so that the several rechargeable mobile power stations are connected in parallel; such that the inverter processing unit of one of the several rechargeable mobile power stations, which operates as the master inverter, generates and then transmits a synchronization signal to the inverter processing unit of the other(s) rechargeable mobile power stations, which operates as the slave inverter, in order to: - to synchronize in frequency and intensity the single-phase alternating output currents that the several rechargeable mobile power supply stations deliver to their corresponding input sockets of the parallelization box, each of which single-phase alternating output currents has a given output power, then - deliver on at least one output socket of the parallelization box a total single-phase alternating current output having a total output power corresponding to the sum of the output powers of the single-phase alternating currents output from the several rechargeable mobile power supply stations.

[0098] The parallelization box may include, for example, a distribution line having input ends each electrically connected to a separate input socket among the several input sockets of the parallelization box; and at least one output end electrically connected to at least one output socket of the parallelization box.

[0099] Advantageously, the rechargeable power supply assembly allows, in a simple manner, by parallelizing stations via their at least one parallelization socket on the one hand, and then connecting them to the input of the parallelization box on the other hand, the electrical supply of at least one electrical consumer device connected to the output of the parallelization box with a total single-phase alternating current output having a total output power of corresponding to the sum of the output powers of the single-phase alternating currents from the several rechargeable mobile power supply stations.

[0100] Moreover, as the rechargeable power supply unit results from the association of several stations and a parallelization box, it can be easily transported, installed / mounted or uninstalled / disassembled.

[0101] In order to deliver a single-phase alternating output current on their respective input socket of the parallelization box, each of the several stations operates in its discharge configuration.

[0102] In one embodiment, the multiple input sockets of the parallelization box comprise six input sockets; meaning that it is possible to put six stations in parallel.

[0103] In one embodiment, each of the six stations delivers, for example, a single-phase alternating current output with an output power of 7.2 kW. Thus, the rechargeable power supply assembly is capable of supplying at least one electrical consumer device with a total single-phase alternating current output with a total output power of 43.2 kW.

[0104] In another embodiment, each of the six stations delivers, for example, a single-phase alternating current output with an output power of 11 kW. Thus, the rechargeable power supply assembly is capable of supplying at least one electrical consumer device with a total single-phase alternating current output with a total output power of 66 kW.

[0105] At least one output socket of the parallelization box is selected so as to be suitable for such total output powers. At least one output socket of the parallelization box may, for example, correspond to a 90 A socket.

[0106] In order for the output powers of the single-phase alternating output currents to be summed, it is necessary that said single-phase alternating output currents be synchronized in both frequency and intensity.

[0107] Hereafter and unless otherwise indicated, "master station" means the station which includes the master inverter, and "slave station" means the station which includes the slave inverter.

[0108] In one embodiment, the stations included in the rechargeable power supply assembly each comprise several paralleling outlets. The stations comprise a master station and several slave stations. The processing units of the master inverter and the slave inverters are connected, for example, such as: - each of the slave stations has one of its several parallelization sockets electrically connected to a parallelization socket separate from the master station. In other words, the master inverter's processing unit transmits the synchronization signal to the processing unit of each of the slave inverters; or - the master station and the slave stations are cascaded with: a parallel connection on the master station that is electrically connected to a parallel connection on a slave station, which slave station is electrically connected via another parallel connection to a parallel connection on a possible other slave station. In other words, the master inverter's processing unit transmits the synchronization signal to the processing unit of a slave inverter, which then, upon receiving the synchronization signal, relays it possibly to the processing unit of another slave inverter.

[0109] Upon receiving the synchronization signal, the processing units of the slave inverters synchronize the frequency and intensity of the single-phase AC output they are to generate based on the synchronization signal. Thus, their respective single-phase AC output is synchronized with that to be generated by the master inverter. Following synchronization, each of the slave inverters delivers its synchronized single-phase AC output to at least one of its output sockets, which is electrically connected to one of the several input sockets of the parallelization unit. Brief description of the drawings

[0110] Other features and advantages of the present invention will become apparent from the following detailed description of a non-limiting example of implementation, made with reference to the accompanying figures in which:

[0111] [Fig-1] is a schematic view of a front face of a box of the station of the invention, with some of these equipment accessible to an operator from the outside;

[0112] [Fig.2] is a simplified schematic view of the electrical architecture of the station according to a first embodiment;

[0113] [Fig.3] is a schematic view of the internal rechargeable electrical source according to a first embodiment, and which is included in the electrical architecture of the station illustrated [Fig.2];

[0114] [Fig.4] is a simplified schematic view of the electrical architecture of the station in [Fig.2], when it is operating in its charging configuration, with external power sources electrically connected to its input sockets for the purpose of charging the internal rechargeable electrical source;

[0115] [Fig. 5] a simplified schematic view of the electrical architecture of the station in [Fig. 2] or [Fig. 4], when it is operating in its discharge configuration, with electrically consuming devices electrically connected to its outlets outputs intended to be electrically powered by a single-phase alternating output current delivered by said station, the single-phase alternating output current being generated following the conversion of an internal direct current delivered by the internal rechargeable electrical source;

[0116] [Fig.6] is a simplified schematic view of the electrical architecture of the station according to a second embodiment;

[0117] [Fig.7] is a schematic view of the internal rechargeable electrical source according to a first embodiment, which is included in the electrical architecture of the station illustrated [Fig.6];

[0118] [Fig.8] is a simplified schematic view of a rechargeable power supply assembly comprising a parallelization box having input sockets to which several stations can be electrically connected via their output sockets to put them in parallel, the parallelization box also having at least one output socket to which is electrically connected an electrically consuming device which can then receive a total single-phase alternating output current having a total output power equal to the sum of the output powers of the single-phase alternating output currents that each of the stations is capable of supplying.

[0119] [Detailed description of one or more embodiments of the invention]

[0120] With reference to [Fig. 1], the rechargeable mobile power supply station Station 100 is presented in the form of a box 101 which contains its electrical architecture. Various elements or equipment of station 100 are accessible to an operator from the outside, such as, but not limited to: - a plurality of input sockets including at least one first input socket PI, at least one second input socket P2, at least one third input socket P3, at least one output socket PS, at least one parallelization socket PP, at least one fourth input socket (not illustrated); - a screen 51 displaying a plurality of information relating to station 100, and which may for example be touch-sensitive; - a switch button 8; - an EB emergency stop button, and a start button (not shown) for switching the station on or off; and - at least one circuit breaker (not shown).

[0121] The roles / functionalities of each of the listed elements or equipment are subsequently specified.

[0122] The box 101 of station 100 is arranged on a mobile chassis (not shown).

[0123] With reference to [Fig.2] to 5, an electrical architecture of station 100 according to a first embodiment is illustrated in a simplified manner.

[0124] In this embodiment, at least one first input socket PI comprises two first input sockets PI; at least one second input socket P2 comprises a second input socket PI; at least one third input socket P3 comprises a third input socket P3; at least one output socket comprises two output sockets PS. For clarity and understanding of the simplified electrical architecture of station 100, only one parallelization socket is shown.

[0125] Circuit breakers, not shown, are positioned at the output sockets PS and the second input socket P2 in order to protect them.

[0126] The first PI input sockets are each intended to electrically connect to station 100 a first external source SI 1, S12 which delivers a single-phase alternating current IA1, IA2. The first external source SI 1, S12 can, for example and not limited to, correspond to the electrical network or a generator set.

[0127] It is assumed that one of the first two PI input sockets is a 32 A socket, while the other of the first two PI input sockets is a 16 A socket. As the voltage of the single-phase low voltage distribution network in France is equal to 230V, the maximum potential power on the 16 A socket is equal to 3.68 kW, and that on the 32 A socket is equal to 7.32 kW.

[0128] Each of the first PI input sockets is electrically connected to the input of a separate AC-DC converter 1, which is intended to convert the single-phase alternating current IA1, IA2 into a first external direct current IC1, IC12. In order to prevent the first external sources SI1, S12 from delivering single-phase alternating current IA1, IA2 at a power close to the maximum potential power, which could damage the first PI input sockets, each of the AC-DC converters 1 is chosen so as to have an AC-DC converter saturation power that is less than the maximum potential power associated with the type of the first PI input socket (by type, we mean 16 A socket and 32 A socket).

[0129] The second input socket P2 is intended to electrically connect a second external source S2 to station 100, which delivers a direct current ICS2. This second external source is considered to be a solar panel that converts solar energy into electrical energy. The second input socket P2 is electrically connected to the input of a DC-DC converter 2, which converts the direct current ICS2 into a second external direct current IC2. More precisely, the DC-DC converter 2 is a solar regulator of the MPPT (Maximum Power Point Tracking) type, whose function is to stabilize the direct current ICS2 supplied by the second external source. S2 (the second external direct current IC2 thus corresponds to the stabilized direct current ICS2).

[0130] Station 100 includes an inverter 3 having an output electrically connected to the output sockets PS, and having an inverter saturation power considered to be equal to 11 kW. The inverter 3 includes a processing unit U3. The functions of the inverter 3 and its processing unit U3 are specified below.

[0131] Station 100 also includes an internal rechargeable power source 4, which includes four identical rechargeable batteries 41 (i.e. of the same reference).

[0132] Hereafter, and unless otherwise indicated, "internal source 4" means "rechargeable internal electrical source 4", and "batteries 41" means "rechargeable batteries 41".

[0133] Station 100 includes a distribution line having several first ends electrically connected to the output of each AC-DC converter 1 and of the DC-DC converter 2, a second end electrically connected to the internal source 4, and a third end electrically connected to the input of the inverter 3.

[0134] More specifically, the distribution line comprises: - a rigid positive busbar L1 having first positive ends L11 electrically connected to a positive output terminal of each of the AC-DC converters 1 and a positive output terminal of the DC-DC converter 2, a second positive end L12 electrically connected to a positive terminal of the internal source 4, and a third positive end L13 electrically connected to a positive terminal of the inverter 3, and - a rigid negative busbar L2 having first negative ends L21 electrically connected to a negative output terminal of each of the AC-DC converters 1 and a negative output terminal of the DC-DC converter 2, a second negative end L22 electrically connected to a negative terminal of the internal source 4, and a third negative end L23 electrically connected to a positive terminal of the inverter 3; the first several positive ends LU and the first several negative ends L21 correspond to the first ends of the distribution line, the second positive end L12 and the second negative end L21 correspond to the second distribution end, and the third positive end L13 and the third negative end L23 correspond to the third distribution end.

[0135] The distribution line includes a first switch II which electrically connects its first several ends to its second end, and a second switch 12 which electrically connects its second end to its third end. More specifically, the first switch II is positioned on the positive busbar L1 between the first positive ends LU and the second positive end L12; and the second switch 12 is also positioned on the positive busbar L1 between the second positive end L12 and the third positive end L13.

[0136] Station 100 includes a control unit 5 which is at least electrically connected, if not in communication, with: the internal power supply 4; the two switches II and 12; the display 51; the switching button 8, the emergency stop button EB, and the start button. The control unit 5 is positioned at the negative bus bar L2, electrically connected on one side to the negative terminal of the internal power supply 4, and electrically connected on the other side to the negative terminal of the inverter 3.

[0137] The control unit 5 corresponds in this embodiment to a battery management system (Battery Management System BMS).

[0138] The control unit is configured to switch station 100 between two configurations called charging (illustrated [Fig.4]) and discharging (illustrated [Fig.5]).

[0139] In the load configuration, the first external sources SI 1, S12 and the second external source S2 are electrically connected respectively to the first input sockets PI and the second input socket P2.

[0140] As previously explained, the alternating-direct current converters 1 convert the single-phase alternating currents IA1, IA2 delivered by the first external sources SI 1, S12 into a first external direct current ICI 1, IC12; and the direct-direct current converter 2 stabilizes the direct current ICS2 supplied by the second external source S2 into a second external direct current IC2.

[0141] The control unit 5 controls the first switch II so that it is in its closed position, and the second switch 12 so that it is in its open position. Thus, a DC charging current ICT, which corresponds to the sum of the first external DC currents IC1, IC12 and the second external DC current IC2, propagates in the distribution line from its first ends to its second end, i.e., to the internal source 4. The DC charging current ICT thus charges the internal source 4. More precisely, the DC charging current ICT simultaneously charges the four batteries 41 included in the internal source 4.

[0142] In the discharge configuration, the first external sources SI 1, S12 and the second external source S2 are disconnected from station 100, and two devices Electrical consumers CD1 and CD2 are electrically connected separately to one of the two output sockets PS. It is expected that the four batteries 51 of the internal source 4 will discharge simultaneously.

[0143] In this configuration, the control unit 5 controls the first switch II to switch from its closed position to its open position, and the second switch 12 to switch from its open position to its closed position. Thus, the internal source is capable of delivering an internal direct current ICC which will propagate from the second end of the distribution line to its third end, i.e., to the input of the inverter 3. The inverter then converts the internal direct current ICC into a single-phase alternating current output IAS which will be used to electrically supply the two electrical consuming devices CD1, CD2, with the single-phase alternating current output IAS having an output power less than or equal to the inverter saturation power (i.e., less than or equal to 11 kW).

[0144] In the described embodiment, the control unit switches the station 100 from its charging configuration to its discharging configuration, and vice versa, depending on the position of the switch button 8, which can be either a pressed or released position, such that each configuration is associated with one or the other of the two positions. In other words, the station 100 switches from one of its two configurations to the other when an operator manually presses or releases the switch button. In an alternative embodiment in which the screen 51 is touch-sensitive, the operator triggers the switch between the two configurations by interacting, for example, with options offered in a menu displayed on the screen 51. In such an alternative embodiment, it is not necessary for the station to include the switch button 8.

[0145] The control unit 5 is configured to monitor the direction of flow of the load DC current ICT during the charging configuration and that of the internal DC current ICC during the discharging configuration. If the load DC current ICT does not flow from the first end of the distribution line to its second end, the control unit stops the charging of the internal source 4 by switching the first switch II from its closed position to its open position. If the internal DC current ICC does not flow from the second end of the distribution line to its third end, the control unit 5 stops the power supply to the electrical consuming devices CD1, CD2 by switching the second switch 12 from its closed position to its open position.

[0146] The station includes a third input socket P3 intended for electrically connecting a third external source to the output sockets PS, which third external source is a single-phase AC power supply, similarly to the first external sources SU, S12. The third input socket P3 can correspond to a 16 A or a 32 A socket. Thus, in the described embodiment, the two electrical devices CD1 and CD2 would be powered directly by the third external source, bypassing the inverter 3. In other words, in this usage context, station 100 can be considered a simple wire. In the charging configuration, the third external source can be used to power the two devices CD1 and CD2 while the first external sources SU and S12 and a second external source S2 are used to charge the internal source 4.

[0147] The control unit 5 receives a measurement of the load DC current value ICT and a measurement of the internal DC current value ICC from a current measuring device 9 positioned at the distribution line, such as a shunt.

[0148] With reference to [Fig. 3], the four 41 batteries are electrically connected together in the known 2P2S configuration. The technology chosen for the four 41 batteries is NMC (Nickel, Manganese, Cobalt) technology. This type of battery technology exhibits optimal performance when its battery temperature is within a predefined temperature range. Otherwise, its performance is degraded outside of this temperature range. A battery temperature that is too low or too high can also lead to premature aging of the 4L battery.

[0149] To address this performance issue related to battery temperature, each of the four batteries 41 is associated with: a temperature measurement device 42, such as a temperature sensor, to measure the battery temperature of battery 41, and a heating system 43, such as an electric heating pad. Also included in the station 100 is a thermal control system 7 which is at least in communication with the temperature measurement devices 42 and the heating device 43 of each of the four batteries 41. Each of the temperature measurement devices 42 transmits the battery temperature measurement of the battery 41 to which it is associated to the thermal control system 7.Based on this battery temperature measurement, the thermal control system 7 either transmits or does not transmit a heating command to the heating system 43 associated with the battery 41 corresponding to that battery temperature measurement. If the heating device 43 receives this heating command, then it is configured to heat the battery 4L.

[0150] In the described embodiment, the optimal operating range of an NMC-type battery 41 is considered to be between 17°C and 25°C. Thus, the thermal regulation system 7 is configured to: - not to transmit a heating setpoint to a heating device 43 if the battery temperature of its associated battery 41 is greater than or equal to 17°C; and - to transmit a heating setpoint to a heating device 43 if the battery temperature of its associated battery 41 is less than 17°C; the heating setpoint continuing to be transmitted by the thermal control system 7 to the heating device 43 as long as the battery temperature does not reach 25°C; and no longer being transmitted once the battery temperature is equal to 25°C.

[0151] In order to thermally regulate the batteries 41, more specifically to dissipate / evacuate to the outside the heat which they produce during charging and discharging configurations to prevent them from overheating, some walls of the box 101 include ventilation slots in which fans are arranged (the slots and fans are not shown).

[0152] The thermal regulation system 7 and the heating systems 43 of the batteries 41 are electrically powered by means of an internal power supply line LT connected to the first input socket PI which corresponds to socket 32 ​​A. Thus, the single-phase alternating current IA1 supplied by the first external source SI is converted by the alternating-direct current converter 1 into the first external direct current ICI on the one hand, and serves to supply the thermal regulation system 7 and the heating systems 43 on the other hand.

[0153] The internal power supply line LT includes a switch 13 which is a thermal switch, such that one terminal of said switch 13 is electrically connected to the first input socket PI, and its other terminal is electrically connected to the heating devices 43 and the thermal control system 7. The switch is configured to be in a closed position as long as the battery temperature of at least one of the four batteries 41 does not become equal to or greater than a critical temperature which is considered to be equal to 40°C. If the battery temperature of one of the four batteries 41 becomes greater than or equal to the critical temperature, the switch 13 is configured to switch from its closed position to its open position so that the heating devices 43 of the four batteries 41 and the thermal control system 7 are no longer electrically powered.Such a situation can occur, for example, in the event of a malfunction of the thermal regulation system 7 which would continuously transmit a heating setpoint to a heating device 43 of a battery 41 when the latter has a battery temperature greater than or equal to 25°C.

[0154] In addition to possessing knowledge of the charging DC current ICT and the internal DC current ICC, the control unit 5 knows the voltage across the terminals of the four batteries 41 by being connected to them by a wire harness 52. In some embodiments, the wire harness 52 electrically connects the control unit 5 to the various modules, or to the different cells, of each battery 41. The control unit 5 is then able to determine the voltage of each of the batteries from the voltage measurements of their modules or their cells.

[0155] From the DC charging current ICT (respectively the internal DC current ICC), the voltage of the batteries 41 or the module or cell voltages of each of the batteries 41, the control unit 5 is able, during the charging configuration (respectively during the discharging configuration), to determine the charge level of each of the batteries 41, and the total charge level of the internal source 4.

[0156] In the charging configuration, the control unit 5 is configured to compare the charge level of each of the four batteries 41 with a maximum charge level, and to stop charging the internal source 4 by controlling the first switch II to switch from its closed position to its open position when the charge level of at least one of the batteries 41 becomes greater than or equal to the maximum charge level, thus preventing any risk of battery overcharging. This maximum charge level could, for example, correspond to a charge percentage of 100%.

[0157] In the discharge configuration, the control unit 5 is configured to compare the charge level of each of the batteries 41 with a minimum charge threshold, and to stop the power supply of the electrical consumer devices CD1, CD2 by the internal source 4, by commanding the second switch 12 to switch from its closed position to its open position, when the charge level of at least one of the batteries 41 becomes below said minimum charge threshold, thus preventing any risk of battery discharge.

[0158] The control unit 5 is also configured to monitor, during the discharge configuration, that the four batteries 41 discharge simultaneously. If this is not the case, it stops the power supply to the electrical consuming devices CD1, CD2.

[0159] An operator can also manually stop the charging of the internal source 4 during the charging configuration, and the power supply to the electrical consuming devices CD1, CD2 during the discharging configuration, by pressing the emergency stop button EB. The control unit 5 then detects a press of the emergency stop button EB and shuts down station 100. The operator can then restart station 100 by pressing the start button.

[0160] As previously stated, the station 100 may include at least one fourth input socket for electrically connecting an alerting device to the control unit 5. The alerting device may, for example, be used to alert an operator to a low charge level in the internal source 4, or in at least one of its four batteries 4L. Thus, when the control unit 5 determines that When the charge level of the internal source 4, or that of one of its four batteries 41, falls below the minimum charge threshold, it transmits an activation signal to the warning device. The warning device may be a flexible electroluminescent strip that illuminates upon receiving the activation signal.

[0161] Station 10 may also include a geolocation device (not shown) configured to geolocate station 100, and a transmitter (not shown) connected to the geolocation device and controlled by the control unit 5 to transmit geolocation data from the geolocation device to a remote server (not shown), for example according to a communication protocol compatible with the 4G standard.

[0162] Screen 51 can display a plurality of information that can be consulted by the operator, for example, but not limited to: - the value of the DC load current ICT and the value of the internal DC current ICC; - the charge level of the internal source 4 and the voltage across its terminals; - the charge level of each of the batteries 41 and the voltage at their terminals; - the voltage across each of the modules or each of the cells of the four batteries 41; - the number of charge and discharge cycles to which each of the four batteries was subjected; - the predefined temperature range in which the 41 batteries offer optimal performance; - the battery temperature of each of the four 4L batteries

[0163] A second electrical architecture of station 100 is illustrated [Fig. 6]. In this embodiment, the station is provided to integrate a single AC-DC converter 1, and several first external sources SU, S12 can be electrically connected to station 100. An electrical switch 6 having several inputs and a single output is positioned in the electrical architecture such that: its several inputs are electrically connected to the several first input sockets PI, and its output is electrically connected to the input of the AC-DC converter 1.

[0164] Thus, the electrical switch 6 allows selection of which first external source SI 1, S12 will come to charge the internal source 4 during the load configuration.

[0165] The selected electrical switch 6 has a saturation power of 7.5 kW so that its inputs are suitable for electrical connection to both 16 A and 32 A sockets.

[0166] In order to avoid overloading the internal source 4, the control unit 5 can control the electrical switch 6 in order to electrically connect one of the first external sources SU, S12 to the AC-DC converter 1 according to the current load level of the internal source 4, so that the DC load current ICT delivered to it 4 is in accordance with said load level.

[0167] Compared to the previous architecture, and with reference to [Fig. 7], the internal source 4 of this second electrical architecture comprises four batteries 41 connected in series. The battery technology considered is LFP (Lithium, Iron, Phosphate). Unlike NMC technology, the performance of LFP batteries is not affected by battery temperature. This is why the second electrical architecture of station 100 does not include a thermal regulation system 7, an internal power line LT; and why the batteries 41 are not associated with heating devices 43. Optionally, temperature measurement devices 42 (not shown in [Fig. 7]) may be included.7]) can measure the battery temperatures of each of the batteries 41 and transmit this temperature measurement to the control unit 5, which will then display the battery temperature values ​​on the screen 51 for informational purposes for the operator.

[0168] In this second electrical architecture, the control unit 5 is not connected by a wire harness to the batteries 41 or to each of their modules or cells in order to measure battery, module, or cell voltages. The voltages across the terminals of the batteries 41, or across the terminals of each of their modules or cells, are measured by voltage measuring devices 10 which are at least in communication with the control unit 5.

[0169] In this second embodiment of station 100, the control unit is an electronic card comprising a processor.

[0170] The inverter 3 of this second electrical architecture is chosen such that it has an inverter saturation power equal to 7.2 kW.

[0171] Similar to the first electrical architecture, that of the second embodiment may include an emergency stop button EB, a switching button 8, a start button, at least one parallelization socket PP, at least one third input socket P3, at least one fourth input socket, etc.

[0172] Such electrical architectures of Station 100 advantageously allow the electrical supply of consumer electrical devices CD1, CD2 with single-phase alternating currents output IAS providing satisfactory output powers, while relying on the association / combination of simple electrical equipment and components, making Station 100 easily portable / transportable. The station can also be electrically connected very close to the consumer electrical devices CD1, CD2 while eliminating the need for installation / reinstallation constraints in areas or locations with limited surface area or volume.

[0173] The two electrical architectures presented are given in an illustrative and non-limiting manner.

[0174] In one embodiment, it is possible to connect several stations 100 in parallel to supply at least one electrical consumer device CD1, CD2 with a single-phase alternating current total output IAST, which has a total output power PT equal to the sum of the output powers of the alternating currents delivered by the several stations. Connecting the stations 100 in parallel is made possible by means of a parallelization box 200; the several stations 100 and the parallelization box then form a rechargeable power supply unit 300.

[0175] Figure 8 illustrates an example of paralleling three stations 100. Each of the three stations 100 operates in its discharge configuration and delivers, on at least one of its output taps PS, a single-phase alternating current output IAS, IAS2, IAS3 with an output power PI, P2, P3. The three output powers PI, P2, P3 may be equal or different from each other. In this example, it is assumed that each of the three stations 100 comprises two parallelization taps PP.

[0176] The parallelization box 200 includes several input sockets 201 and at least one output socket 202. Each of the several input sockets 201 is intended to be electrically connected to an output socket PS of a station 100. The at least one output socket 202 is intended to electrically connect at least one consumer device CD1, CD2 to the parallelization box. The parallelization box 200 includes a distribution line 203 connecting the several input sockets 201 to the at least one output socket 201.

[0177] In order for their output power PI, P2, P3 to be able to be summed, the single-phase alternating output currents IAS, IAS2, IAS3 must necessarily be synchronized in frequency and also in intensity.

[0178] To achieve this, each of the two PP parallelization sockets of one of the three stations 100, referred to as the master station, is electrically connected to one of the two PP parallelization sockets of each of the other two stations 100, referred to as the slave stations. Thus, the MU3 processing unit of the inverter 3 of the master station, referred to as the master inverter M3, is connected to the SU3 processing unit of the inverter 3 of each slave station, referred to as the slave inverter S3.

[0179] The MU3 processing unit of the M3 master inverter is configured to generate an ssync synchronization signal, exhibiting a waveform and a frequency respectively identical to the waveform and frequency of the single-phase alternating current output IAS generated by the master inverter M3.

[0180] After being generated, the synchronization signal ssync is then transmitted by the processing unit MU3 to the processing unit SU3 of each of the slave inverters S3.

[0181] Upon receiving the synchronization signal ssync, the SU3 processing units of the slave inverters S3 synchronize in frequency and intensity with said synchronization signal the waveforms of the single-phase alternating output currents IAS2, IAS3 that the slave inverters S3 are to generate.

[0182] It follows that the single-phase alternating output currents IAS2, IAS3 generated by the slave inverters S3 and delivered on their respective input socket 201 of the parallelization box 200 are synchronized with the single-phase alternating output current IAS generated and delivered by the master inverter, and that the total single-phase output current IAST electrically supplying at least one consumer electrical device CD1, CD2 has a total output power PT equal to the sum of the output powers PI, P2, P3 of the single-phase alternating output currents IAS, IAS2, IAS3.

[0183] The connection of the MU3, SU3 processing units described above is given by way of illustration and not limitation.

[0184] In a particular embodiment, the parallelization box 200 has six input sockets 201, thus allowing up to six stations 100 to be put in parallel. Each of the six stations 100 then has a number of parallelization sockets PP adapted so that the processing units SU3 of the slave inverters S3 of five slave stations can receive the synchronization signal ssync from the processing unit MU3 of the master inverter M3 of the master station.

[0185] In one variant, it is thus possible to connect in parallel six stations 100 designed according to the first electrical architecture presented. It is then possible to power at least one consumer electrical device CD1, CD2 with a single-phase total output current IAST having a total output power PT equal to 66 kW. In another variant, it is thus possible to connect in parallel six stations 100 designed according to the second electrical architecture presented. It is then possible to power at least one consumer electrical device CD1, CD2 with a single-phase total output current IAST having a total output power PT equal to 43.2 kW.

[0186] In order to transmit a single-phase total output current IAST having such total output power values ​​PT, at least one output socket 202 of the parallelization box 200 corresponds for example to a 90 A socket.

[0187] In addition to providing a single-phase total output current IAST capable of exhibiting a high total output power PT, the rechargeable power supply assembly 300 also has the advantages of being easily portable / transportable, and installable / dismantled in areas or locations with a limited surface area or volume since it is not designed as a single unit / block but formed by the association of several pieces of equipment (the 100 stations, the 200 parallelization box).

Claims

1. Demands Rechargeable mobile power supply station (100) for supplying power to at least one electrical consumer device (CD), the rechargeable mobile power supply station (100) comprising: - at least one first input socket (PI) intended for connection with a first external source (SI) which delivers a single-phase alternating current (IA1, IA2), - at least one AC-DC converter (1) having an input electrically connected to at least one first input socket (PI) and an output, and converting the single-phase AC current (IA1, IA2) into a first external DC current (ICI 1, IC 12), - an inverter (3, M3, U3) with one input and one output, - an internal rechargeable electrical source (4) comprising one or more rechargeable batteries (41), - a distribution line having at least one first end electrically connected to the output of at least one AC-DC converter (1), a second end electrically connected to the internal rechargeable electrical source (4), and a third end electrically connected to the input of the inverter (2), - one or more output sockets (PS) which are each electrically connected to the output of the inverter (3, M3, U3), and which are intended for electrical connection with at least one electrical consumer device (CD); the rechargeable mobile power station (100) comprising a control unit (5) which is at least in communication with the rechargeable internal power source (4), and which is configured to switch the rechargeable mobile power station (100) between: - a charging configuration, during which the internal rechargeable electrical source (4) is charged by a direct current charging current (ICT), which includes at least the first external direct current (ICI 1, IC12) delivered on the output of at least one AC-DC converter (1) and flowing from the at least a first end to the second end of the distribution line, and - a discharge configuration, during which the internal rechargeable electrical source (4) generates an internal direct current (ICC) which flows from the second end to the third end of the distribution line, and is then converted by the inverter (3, M3, U3) into a single-phase alternating current output (IAS) electrically supplying at least one electrical consumer device (CD).

2. A rechargeable mobile power station (100) according to claim 1, wherein the distribution line includes a first switch (II) which electrically connects at least one first end and the second end, and a second switch (12) which electrically connects the second end to the third end, and the control unit (5) is in communication with the first switch (II) and the second switch (12) such that: - in the charging configuration, the control unit (5) drives the first switch (II) to be in a closed position, and drives the second switch (12) to be in an open position, and - in the discharging configuration, the control unit (5) drives the first switch (II) to be in an open position, and drives the second switch (12) to be in a closed position.

3. Rechargeable mobile power station (100) according to claim 1 or 2, comprising at least one second input socket (P2) provided for connection with a second external source (S2) which delivers a direct current (ICS2), and wherein the rechargeable mobile power station (100) comprises at least one DC-DC converter (2) having an input electrically connected to at least one second input socket (P2) and an output for converting the direct current (12) into a second external direct current (IC2), said output of at least one DC-DC converter (2) being electrically connected to at least one other first end of the distribution line;such that when the rechargeable mobile power station (100) is in its charging configuration, the rechargeable internal power source (4) is charged by the charging direct current (ICT) which includes the second external direct current (IC2) delivered on the output of at least one DC-DC converter (2) and which; flows from at least one other first end to the second end of the distribution line.

4. Rechargeable mobile power supply station (100) according to any one of claims 1 to 3, wherein: - at least one first input socket (PI) comprises several first input sockets (PI), - at least one AC-DC converter (1) comprises several AC-DC converters (1), and - at least one first end of the distribution line comprises several first ends; such that each of the several AC-DC converters (1) is connected respectively at input to one of the several first input sockets (PI) and is connected respectively at output to one of the several first ends.

5. A rechargeable mobile power station (100) according to any one of claims 1 to 3, wherein: - at least one first input socket (PI) comprises several first input sockets (PI), - at least one AC-DC converter (1) comprises a single AC-DC converter (1), - at least one first end of the distribution line comprises a first end connected to the output of the single AC-DC converter (1), and wherein the rechargeable mobile power station (100) comprises an electrical switch (6) having several inputs connected respectively to several first input sockets (PI), and a single output electrically connected to the input of the single AC-DC converter (1); the electrical switch (6) allowing selection of which of its several inputs is connected to its output.

6. Rechargeable mobile power station (100) according to any one of the preceding claims, wherein the internal rechargeable power source (4) comprises four rechargeable batteries (41) electrically connected together in a 2P2S configuration in which two subsets are connected in parallel, each comprising two rechargeable batteries (41) connected in series.

7. Rechargeable mobile power station (100) according to any one of claims 1 to 5, wherein the internal rechargeable power source (4) comprises four rechargeable batteries (41) connected in series.

8. A rechargeable mobile power station (100) according to any one of the preceding claims, wherein the or each of the rechargeable batteries (41) is associated with a temperature measuring device (42) for measuring a battery temperature, and with a heating system (43) connected to a thermal control system (7) which is configured to address the heating system (43) with a heating setpoint based on the battery temperature measured by the temperature measuring device (42) in order to maintain the battery temperature within a predefined temperature range.

9. Rechargeable mobile power station (100) according to claim 8, wherein the heating system (43) of the or each of the rechargeable batteries (41) and the thermal regulation system (7) are electrically connected to at least one first input outlet (PI) via an internal power line (LT) to enable power supply from the first external source (SI).

10. A rechargeable mobile power station (100) according to any one of the preceding claims, comprising: - a current measuring device (9) configured to measure and transmit to the control unit (5) the charge direct current (ICT) during the charge configuration or the internal direct current (ICC) during the discharge configuration, and - one or more voltage measuring devices (10) which are associated with the respective rechargeable battery or batteries (41) to measure and transmit to the control unit (5) a voltage across the terminals of the respective rechargeable battery or batteries (41);the control unit (5) being configured to determine a charge level associated with the rechargeable battery or batteries as a function of: their corresponding voltage and DC charging current (ICT) during the charging configuration, or their corresponding voltage and internal DC current (ICC) during the discharging configuration.

11. A rechargeable mobile power station (100) according to claim 10, wherein the control unit (5) is configured to, in the charging configuration, compare the charge level of the or each of the several rechargeable batteries (41) with a maximum charge level, and to stop the charging of the internal rechargeable power source (4) when the charge level of the or each of the several rechargeable batteries (41) becomes greater than or equal to the maximum charge level.

12. A rechargeable mobile power station (100) according to claim 10 or 11, wherein the control unit (5) is configured to, in the discharge configuration, compare the charge level of the or each of the several rechargeable batteries (41) with a minimum charge threshold, and to stop the power supply to at least one consumer device (CD) by the internal rechargeable power source (4) when the charge level of the or each of the several rechargeable batteries (41) becomes below the minimum charge threshold.

13. Rechargeable mobile power station (100) according to any one of claims 10 to 12, wherein the internal rechargeable power source (4) comprises several rechargeable batteries (41), and the control unit (5) is configured to, in the discharge configuration, control that the several rechargeable batteries (41) discharge simultaneously.

14. Rechargeable mobile power station (100) according to any one of the preceding claims, comprising at least one third input socket (P3) intended for connection with a third external source and electrically connected to the output socket(s) (PS), so as to be able to power at least one consumer device (CD) directly from the third external source by bypassing the inverter (3, M3, U3).

15. Rechargeable mobile power station (100) according to any one of the preceding claims, comprising a mobile chassis on which are disposed at least at least one first input socket (PI), at least one AC-DC converter (1), the inverter (3, M3, U3), the internal rechargeable power source (44), the distribution line, the output socket(s) (PS) and the control unit (5).

16. Rechargeable mobile power station (100) according to any one of the preceding claims, wherein the inverter (3, M3, U3) has an inverter saturation power of between 7 and 11 kW, and for example equal to 7.2 kW or equal to 11 kW.

17. Rechargeable mobile power station (100) according to any one of the preceding claims, comprising a geolocation device shaped to geolocate the rechargeable mobile power station (100), and a transmitter connected to the geolocation device and driven by the control unit (5) to transmit geolocation data from the geolocation device to a remote server.

18. Rechargeable mobile power station (100) according to any one of the preceding claims, comprising at least one parallelization socket (PP) connected to a processing unit (U3, MU3, SU3) of the inverter (3, M3, U3).

19. Rechargeable power supply assembly (300) for supplying power to at least one electrical consumer device (CD1, CD2), the rechargeable power supply assembly (300) comprising: - several rechargeable mobile power supply stations (100) according to claim 18; and - a parallelization box (200) comprising several input sockets (201) and at least one output socket (202) which is connected to the several input sockets (201);in which: - each of the several rechargeable mobile power stations (100) has its at least one parallelization socket (PP) which is connected to the at least one parallelization socket (PP) of at least one other rechargeable mobile power station (100), so that the processing units (U3, MU3, SU3) of the inverters (3, M3, U3) of the several rechargeable mobile power stations (100) are connected together, - each of the several rechargeable mobile power stations (100) has its at least one output socket (PS) which is connected to one of the several input sockets (201) of the parallelization box (200), so that the several stations; rechargeable mobile power supplies (100) are connected in parallel; such that the processing unit (MU3) of the inverter (M3) of one of the several rechargeable mobile power stations (100), which operates as the master inverter, generates and then transmits a synchronization signal (ssync) to the processing unit (SU3) of the inverter (S3) of the other or other rechargeable mobile power stations (100), which operates as the slave inverter, in order to: - synchronize in frequency and intensity the single-phase alternating output currents (IAS, IAS2, IAS3) that the several rechargeable mobile power supply stations (100) deliver to their corresponding input sockets (201) of the parallelization box (200), which single-phase alternating output currents (IAS, IAS2, IAS3) each have a given output power (PI, P2, P3), then - deliver on at least one output socket (202) of the parallelization box (200) a total single-phase alternating output current (IAST) having a total output power (PT) corresponding to the sum of the output powers of the single-phase alternating output currents (IAS, IAS2, IAS3) of the several rechargeable mobile power supply stations (100).

Images