Device for supplying power to at least one power consumption unit or at least one power recovery unit

Abstract

A device for supplying power to at least one power consumption unit or at least one power recovery unit or at least one power consumption and power recovery unit (1021) of an electrical device, the device comprising a plurality of power generators (1011, 1012, 1013), each of the plurality of generators being electrically connected in parallel with the other generators, each generator comprising a calculation unit (UC) k ), power converter (CP k ) and electrical energy storage and recovery elements (ES k ), power converter (CP) of generator (1011, 1012, 1013) k ) is bidirectional and is configured as a storage element based on the generator (ES k ) charging or discharging power (Pcal k ) to monitor the set variable (V k ) value, charging or discharging power (Pcal k ) by the computing unit (CP k ) is calculated in real time based on the following: the charging or discharging power (Pcal) of each storage and recovery element of the other generators (1011, 1012, 1013) k ) setting variable (V k ) value; and a determined set point power P; and the number of generators (1011, 1012, 1013) in a determined operating state, the charging or discharging power (Pcal) of each storage element of each generator in the plurality of generators k ) is equal to the determined set point electrical power P.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicles. Background Art

[0002] It is known to supply electric motors, in particular electric motors whose supply voltage has a fixed or regulated value, from electric energy storage elements to drive traction components of a vehicle. However, when a plurality of electric energy storage elements are distributed at different locations of a vehicle and interconnected in order to supply electric energy to at least one electric motor driving the traction components of the vehicle, the uneven physical distribution of the storage elements relative to the motors may generate voltage drops in the interconnecting cables. The energy transferred by the storage elements may become unstable and result in a significant current draw between the storage elements.

[0003] Therefore, the present invention aims to provide a solution to all or part of these problems. Summary of the invention

[0004] To this end, the present invention relates to a device for supplying at least one electric energy consuming component or at least one electric energy restoring component or at least one electric energy consuming and restoring component of an electrical device, the device comprising a plurality of electric energy generators, each of the plurality of generators being electrically connected in parallel with the other generators, each generator comprising a calculation unit, a power converter and an electric energy storage and restoration element, the power converter of the generator being bidirectional and configured to monitor the value of a set amount based on the charging or discharging electric power of the storage element of said generator, the charging or discharging electric power being calculated in real time by the calculation unit according to:

[0005] - a function of the value of the set amount of electric power charged or discharged by each storage and recovery element of the other generators, and

[0006] - the determined set point power P, and

[0007] - the number of generators in a determined operating state,

[0008] The sum of the charging or discharging electric powers of each storage element of each of the plurality of generators is equal to the determined set point electric power P.

[0009] According to these arrangements, the regulation of the value of the set amount of each of the plurality of generators of the device is distributed over each generator, each generator being configured to ensure this regulation in an independent manner according to information received from each other generator.

[0010] According to one embodiment, the invention includes one or more of the following features considered alone or in combination.

[0011] According to one embodiment, at least one consumption component is configured to exclusively consume electrical energy provided by the device, at least one recovery component is configured to exclusively provide electrical energy to the device, and the consumption and recovery components are configured to alternately consume electrical energy transmitted by the device, or to provide electrical energy to the device.

[0012] According to one embodiment, the determined power set point is determined by the difference between the set point voltage of the electrical device and the voltage measured at the terminals of each generator.

[0013] According to these arrangements, the value of the set amount converges towards the same value regardless of initial conditions or the impedance of the device between each generator, while keeping the voltage of the electrical device regulated around the set point voltage of the electrical device.

[0014] According to one embodiment, the function of the value of the setpoint quantity and the function of the setpoint power are Lyapunov functions.

[0015] According to these arrangements, for a given set point power, the charging or discharging electric power is distributed in an uneven manner over the different electric storage and recovery elements so that the set amount of electric power remains balanced over all generators, regardless of the initial conditions.

[0016] According to one embodiment, the electrical device is a motor vehicle, such as a tram, or a train, or a bus, or a truck, or a ship, or an airplane.

[0017] According to one embodiment, the electrical energy consuming component is a reversible electric motor configured to operate alternately in an electrical energy consuming mode and an electrical energy recovering mode.

[0018] According to one embodiment, the charging or discharging electric power is calculated by the calculation unit according to a determined time period, depending on the response time of the system, the time period at least partially depending on the operating frequency or the cut-off frequency of the power converter of the generator.

[0019] According to one embodiment, the set amount of electrical power is a voltage or current intensity or a cumulative count of the electric charge flowing in the storage element.

[0020] According to these arrangements, whatever the initial conditions, whatever the energy value of the storage element, whatever the number of generators connected in parallel, the voltage or intensity at the terminals of the storage elements of the generators is balanced.

[0021] According to these arrangements, the set point power is instantly divided and adjusted to balance the voltage or current at the storage element terminals.

[0022] According to these arrangements, the sum of the powers calculated by the generators will always be equal to the set point power.

[0023] According to one aspect, the invention also relates to a method for providing electrical energy to at least one electrical energy consumer or at least one electrical energy recovery component or at least one electrical energy consumption and recovery component of an electrical device, or a method for recovering electrical energy provided by at least one electrical energy consumer or at least one electrical energy recovery component or at least one electrical energy consumption and recovery component of an electrical device, the electrical energy being delivered by a plurality of electrical energy generators or provided to a plurality of electrical energy generators, each of the plurality of generators being electrically connected in parallel with the other generators, each generator comprising a calculation unit, a bidirectional power converter and an electrical energy storage and recovery element, the method comprising the following steps being implemented by each of the plurality of generators and then repeated according to a repetition time frequency:

[0024] - reading, by the calculation unit of the generator, the value of the set quantity of the power converter of the generator and the value of the set quantity of the power converter of other generators;

[0025] - reading, by a calculation unit, the value of the operating state of the generator and the value of the operating state of each of the other generators of the plurality of generators;

[0026] - the calculation unit transmits the value of the set variable of the power converter of the generator and the value of the operating state of the generator to other generators;

[0027] - calculating, by a calculation unit, the number of generators in a determined operating state from the value of the operating state of said generator and from the value of the operating state of each of the other generators of the plurality of generators;

[0028] - the charging or discharging electrical power of the storage element of the generator is calculated by a calculation unit according to:

[0029] - a function of the value of the set amount of electric power charged or discharged by each storage and recovery element of said generator and of the other generators, and

[0030] - a determined setpoint power and the number of generators in a determined operating state,

[0031] the sum of the charging or discharging electric power of each storage element of each generator of the plurality of generators being equal to the determined set point electric power;

[0032] - Monitoring the value of the set quantity of the storage and recovery element of the generator on the basis of the charging or discharging electric power calculated by the calculation unit of the generator.

[0033] According to one embodiment, the present invention includes one or more of the following features considered individually or in combination.

[0034] According to one embodiment, at least one consumption component is configured to exclusively consume electrical energy provided by the device, at least one recovery component is configured to exclusively provide electrical energy to the device, and the consumption and recovery components are configured to alternately consume electrical energy transmitted by the device, or to provide electrical energy to the device.

[0035] According to one embodiment, the function of the value of the set amount of charging or discharging electric power is a Lyapunov function.

[0036] According to one embodiment, the repetition time frequency is determined at least in part as a function of an operating frequency or a cut-off frequency of a power converter of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to better understand the present invention, embodiments and / or implementations of the present invention are described with reference to the accompanying drawings, which, as non-limiting examples, respectively represent embodiments or implementations of the device and / or method according to the present invention. The same reference numerals in the drawings refer to similar elements or elements with similar functions.

[0038] Figure 1 is a schematic diagram of an apparatus according to the present invention;

[0039] Figure 2 is a schematic diagram of a generator according to the present invention;

[0040] Figure 3 is a schematic diagram of data exchange between a plurality of generators of a device according to the present invention;

[0041] Figure 4 is a schematic diagram of the steps of the method according to the present invention.

[0042] Figure 5 is a more comprehensive representation of an embodiment of the present invention.

[0043] Figure 6 is a more comprehensive representation of an embodiment of the present invention. DETAILED DESCRIPTION

[0044] according to Figure 1According to the illustrated embodiment, the power supply device of the present invention comprises a plurality of electric energy generators (1011, 1012, 1013), each of the plurality of generators being electrically connected in parallel with the other generators so as to provide the electric energy required by at least one electric energy consumption component or electric energy recovery component or electric energy consumption and recovery component (1021) of the electrical device; at least one consumption component is configured to exclusively consume the electric energy provided by the device; at least one recovery component is configured to exclusively provide electric energy to the device; at least one consumption and recovery component is configured to alternately consume the electric energy transmitted by the device, or to provide electric energy to the device; according to one embodiment, the electrical device is a motor vehicle, such as a tram, a train, a bus, a ship or an airplane; and the electric consumption component comprises, for example, a reversible electric motor, which is configured to alternately operate in an electric energy consumption mode and an electric energy recovery mode and is configured to actuate the propulsion or traction device of the vehicle. For example, the vehicle is a tram, including one or more trains or wagons, each of which is equipped with one or more driving wheels driven by one or more electric motors; in addition, each of the one or more trains or wagons of the tram can be equipped with one or more electric generators (1011, 1012, 1013) according to the present invention. The train equipped with the electric motor driving wheels can be different from the train equipped with one or more electric generators, and the electric generators installed on different trains are electrically connected to each other and, for example, along at least one cable deployed on all trains, are electrically connected to different electric motors to ensure that the electric power required by these electric motors is provided in parallel. The electric motors can have different powers.

[0045] According to one embodiment, the electrical generators may be combined in whole or in part in one or more groups comprising a plurality of generators coupled in parallel, which groups are then in turn connected to one another to ensure the parallel provision of the electrical power required by the electric motors.

[0046] According to an embodiment of the tram or train type just described, the generators and / or groups combining a plurality of generators together are physically distributed in different locations of the train so that some of them may be close to the electric motor 1021 driving the drive wheels of the train, while others may be far away. Some of them may be connected near additional electrical loads, such as an air conditioning system. This uneven physical distribution of functions results in voltage drops in the interconnecting cables.

[0047] Without a compensation or regulation system, the energy delivered by each generator and / or group may be unstable, resulting in considerable current draw between the generators and / or groups.

[0048] like Figure 2 As shown, according to one embodiment, each generator of the device includes a bidirectional power converter CP k and electrical energy storage element ES kFor example, the power converter is a 133 kW converter. The power converter allows to adjust a physical quantity of the voltage and / or current type present on the interconnection network of the generators to a quantity of the voltage and / or current type V corresponding to the needs of the electrical energy storage element. k .

[0049] In order to operate in the same way all the energy storage elements of the generators distributed on the power supply network of the electric motor, a method for calculating the charging and / or discharging power regulated for each storage element of each generator is implemented so as to favor the discharge of the most charged storage element and / or favor the charging of the least charged storage element. According to these arrangements, the charges of the different storage elements are uniformly balanced and the flow of undesired currents between the storage elements is avoided.

[0050] The charging or discharging power regulated for each storage element of each generator is calculated as a function of the setpoint power P related to the demand of the drive motor of the drive wheels.

[0051] The regulation method is implemented in a distributed manner by each generator. To this end, Figure 2 As shown, each generator 1011, 1012, 1013 includes a computing unit UC k On the one hand, a computing unit of a generator is configured to set a set characteristic quantity V of a storage element of the generator according to a determined period. k The value of is transmitted to all the computing units of the other generators and, on the other hand, receives the set characteristic quantity V of the storage elements of the other generators interconnected on the power supply network of the motor. k The value of .

[0052] The regulation method also takes into account the possible loss of one or more generators due to possible failures. To this end, each generator 101 k Has an indicator N about its operating status k , which is propagated by the computational unit of each generator to all computational units of other generators. These arrangements allow even in one generator 101 k Failures will also ensure the operation of the equipment.

[0053] According to one aspect of the present invention, the present invention relates to a method.

[0054] According to one embodiment of the method, Figure 4 As shown, the following steps are implemented in real time and then repeated by each generator according to a repetition time frequency, where:

[0055] - by the computing unit UC of the generator k Read the setting value V of the power converter of the generator 101 kThe value of the power converter and other generators set the amount V k The value of steps;

[0056] - by the computing unit UC k Read 102 the operating state N of the generator k and the operating state N of each of the other generators 1011, 1012, 1013 of the plurality of generators k The value of steps;

[0057] - by the computing unit UC k The set amount V of the power converter of the generator is transmitted 103 to other generators. k The value and operating state of the generator N k The value of steps;

[0058] - by the computing unit UC k From the operating state N of the generator k and the operating state N of each of the other generators 1011, 1012, 1013 of the plurality of generators k a step of calculating 104 the number of generators 1011, 1012, 1013 in a determined operating state by using a value of

[0059] - by the computing unit UC k The storage element ES of the generator is calculated 105 according to k Charging or discharging power Pcal k Steps:

[0060] - the charging or discharging electric power Pcal of each storage and recovery element of the generator and other generators 1011, 1012, 1013 k The setting value V k is a function of the value of

[0061] - a determined setpoint power P and the number of generators 1011, 1012, 1013 in a determined operating state,

[0062] The charging or discharging electric power Pcal of each storage element of each generator in the plurality of generators k The sum of is equal to the determined set point electrical power P;

[0063] - Based on the charging or discharging electric power Pcal calculated by the calculation unit of the generator 1011, 1012, 1013 k , monitor 106 the set amount V of the storage and recovery elements of the generators 1011, 1012, 1013 k The value of .

[0064] According to one embodiment, the setting amount V k Corresponding to each storage element ES k The cumulative count of the charges flowing in.

[0065] According to one embodiment, the setpoint power is determined by the difference between the setpoint voltage TC of the electrical device and the measured voltage TM1 , TM2 , TM3 at the terminals of each generator.

[0066] According to these arrangements, the setting amount V k The value of converges towards the same value regardless of the initial conditions or the impedances 1, 2, 3 of the device between each generator 1011, 1012, 1013, while keeping the voltage of the electrical device regulated around the set point voltage TC of the electrical device.

[0067] The repetition time frequency of the steps of the method is determined at least in part by the cutoff frequency or operating frequency of the power converter of each generator; therefore, the repetition time frequency of the steps must be higher than or equal to the cutoff frequency or operating frequency of the power converter.

[0068] According to one embodiment, when the generators are grouped together in the same group, the setting amount V k A voltage is preferred, and the temporal frequency of repetition of the steps is preferably high; thus, a temporal frequency corresponding to a period of approximately 5 milliseconds is advantageous.

[0069] According to another embodiment, when the generators are physically dispersed on the distributed power supply network, the physical dispersion of the generators is the origin of different impedances 1, 2, 3 on different parts of the network to which the terminals of the generators are connected, such as Figure 1 as shown; the consumption of these different impedances at the generator terminals is preferably carried out using current intensities to regulate the charging and discharging of the storage elements of the generators, and by repeating the steps of the regulation method according to a lower time frequency than when the generators are grouped together in groups; therefore, a time frequency corresponding to a period of approximately 80 ms is advantageous, for example.

[0070] According to one embodiment, when the generator is not operating, each generator is configured to determine the number of generators in a normal operating state: the state N of each generator in a normal operating state k The value of is equal to 1, for example, and the state N of each generator in the non-operating state k is equal to 0 so that when at calculation step 104 the received state N for each generator is k When the values ​​of kThe number of generators that can contribute to the supply of electrical energy to the power-consuming components of the device can be determined in an independent manner. Thus, the charging and discharging setting amount V of the storage element is taken into account according to the determined function. k After adjustment of the value of $, each generator is able to apply a suitable ratio to the set point power P so that the total power delivered by all generators remains equal to the set point power P.

[0071] According to one embodiment, the set amount V of charging and discharging of the storage element k The function of the value of is a Lyapunov function. According to these arrangements, for a given set point power, the charging or discharging electric power is distributed in an uneven manner on the different electric storage and recovery elements so that the set amount of electric power is balanced on all generators, regardless of the initial conditions.

[0072] Figure 5 In a more comprehensive manner, the method according to the present invention is shown in a case where a plurality of N electrical energy generators 101 are provided. k Each storage element ES of the device 1101 (where k=1 to k=N) k In an embodiment of the distribution of the amount of charge in a power distribution system, the device is included in a system 1201 connected to a power distribution line and includes means for determining a set point power P.

[0073] The power set point P requested by the system 1201 is determined as a function of the difference between the voltage TM1 of the distribution line supplying the device 1101 and the set point TC.

[0074] In the initial condition from a storage element ES k In another different case, the calculation unit UC k Determine the ES of each storage element k The charging or discharging power Pcal k Will be in Generator 101 k Different from the calculation unit UC k For each electric energy generator 101 k Define the power set point Pcal k In order to balance each storage element ES k Balancing is performed according to the sign of P, which indicates whether the device is operating in charge mode or discharge mode.

[0075] Therefore, if P is positive, the device is operating in charge, and the storage element ES with the least charge k will be mainly determined by the set point Pcal k To operate, the set point Pcal k will be higher than the ES corresponding to the most charged element k Power Pcalk .

[0076] At this stage, the computing unit UC k Power Pcal is calculated based on the charge status of each component. k Weighting is performed to ensure that each power generator 101 k Power Pcal k The sum is equal to the set point P to ensure the stability of the power and energy of the system. k No more power should be received or generated in real time than the device desires.

[0077] Conversely, if P is negative, the device operates in discharge, and the storage element ES with the highest charge k will be mainly determined by the set point Pcal k To operate, the set point Pcal k will be higher than the ES corresponding to the least charged element k Power Pcal k .

[0078] In addition, at this stage, the monitoring unit UC k Power Pcal is calculated based on the charge status of each component. k Weighting is performed to ensure that each power generator 101 k Power Pcal k The sum is equal to the set point P to ensure the stability of the power and energy of the system. k No more power should be received or generated in real time than the device desires.

[0079] According to these arrangements, the monitoring unit UC k The estimated quantity allows to estimate for each energy storage element ES according to the sign of P k PCal k Real-time and simultaneous weighting while respecting the ES in each energy storage element k and each power converter CP k Acceptable instantaneous power Pcal k .

[0080] Therefore, without exceeding the component ES k and CP k balance within the constraints of the physical world.

[0081] The balancing strategy according to the invention thus results in the storage and recovery element being charged or discharged in proportion to the total requested charging or discharging power P; as is the case with the balancing strategy according to the prior art, this balancing strategy specifically excludes the storage and recovery element ES. kwhile being charged or discharged in another storage and recovery element ES j In this way, on the one hand, the strategy of the prior art causes overcurrents in the energy storage element ES k and on the other hand in the power converter CP k of the electrical energy generator 101 k According to the balancing strategy of the present invention, these overcurrents can be avoided.

[0082] Although the power Pcal k is different, the device continues to operate, possibly to avoid imbalance between the energy storage elements ES k while ensuring the management of the power P supplied to the device 1101.

[0083] In addition, a weighting of the setpoint value Pcal k can be performed by the monitoring unit UC k to compensate for premature aging of some of the energy storage elements ES k while keeping the sum of Pcal k equal to the setpoint P.

[0084] Since, for each generator 101 of a plurality of generators k each storage element ES k the sum of the charging and discharging electric powers Pcal k is equal to the determined electric power P.

[0085] Since the power P is regulated according to the difference between the line voltage TM1 measured at the terminal 1201 and the voltage setpoint TC, the line voltage TM1 is naturally regulated:

[0086] · If, due to the absence of loads 1021, 1022, 102 i on the line and these last two voltages are exactly the same, then the power P will be zero because the measured voltage TM1 will be equal to the setpoint voltage TC.

[0087] · If TM1 > TC, the power P will be determined in proportion to the voltage difference, and it will charge the element ES k according to the calculation of UC k

[0088] · If TM1 < TC, the power P will be determined in proportion to the voltage difference, and it will discharge the element ES k according to the calculation of UC k

[0089] Figure 6 Using the same principle, several systems 1201, 1202,..., 120 k are used for balancing:​​

[0090] 120 in each system k The set point power P k .

[0091] · Or 120 in each system k The set point current I k ( Figure 6 This alternative is not shown in FIG. 1 , but the method is similar to the method described above for determining the set point power P k is exactly the same as above).

[0092] Therefore, in Figure 6 In the above example, the set point power Pcal k Then it becomes 110 for each device k The power set point and the latter is determined by UC k Calculations are performed so that in each system 120 k have exactly the same power P k , regardless of the line impedances z1, z2 to zk.

[0093] The described method is implemented, for example, in a 40-meter tram vehicle in Nice, France, where the vehicle configuration under development includes a system 120 i Three devices in 101 k (k=1 to 3), 3 systems 120 i (i=1 to 3) are arranged in the vehicle in a diverse manner.

[0094] It is also being implemented on a 30-meter tram vehicle in Kaohsiung, Taiwan, where the vehicle configuration being developed includes System 120 i 3 devices in 101 k (k=1 to 3), 2 systems 120 i (i=1 to 2) are arranged in the vehicle in a diverse manner.

Claims

1. A power supply device for at least one power consumption component or at least one power recovery component or at least one power consumption and recovery component (1021) of an electrical device, the device comprising a plurality of power generators (1011, 1012, 1013), the plurality of power generators comprising more than two generators and each of the plurality of generators being electrically connected in parallel with the other generators, each generator comprising a computing unit (UC) k ), power converter (CP k ) and electrical energy storage and recovery elements (ES k ), the power converter (CP) of the generator (1011, 1012, 1013) k ) is bidirectional and is configured as a storage element based on the generator (ES k ) charging or discharging power (Pcal k ) to monitor the set value (V k ) value, the charging or discharging power (Pcal k ) is calculated by the computing unit (UC k ) is calculated in real time based on: - the charging or discharging electric power (Pcal) of each storage and recovery element of the other generators (1011, 1012, 1013) k ) setting value (V k ), and - the determined set point power P, and - the number of generators (1011, 1012, 1013) in a determined operating state, The charging or discharging electric power (Pcal) of each storage element of each generator of the plurality of generators k ) is equal to the determined set point electrical power P, in, The set point electric power P is adjusted according to the difference between the line voltage TM1 measured at the terminals of the electric energy generator and the set point voltage TC of the electric device, If the line voltage TM1 is equal to the set point voltage TC due to the absence of the at least one power consumption component or the at least one power recovery component or the at least one power consumption and recovery component (1021) on the line, the set point power P is zero, If TM1>TC, the set point electric power P is determined in proportion to the voltage difference, and the electric energy storage and recovery element (ES k ) according to the calculation unit (UC k ) is calculated for charging, If TM1 < TC, the setpoint electrical power P is determined to be proportional to the voltage difference, and the electrical energy storage and recovery element (ES k ) discharges according to the calculation of the calculation unit (UC k ).

2. The device according to claim 1, wherein: The setting amount (V k ) and the value of the set point power (P) is a Lyapunov function.

3. The device according to claim 1, wherein: The setting value of electric power (V k ) is the voltage or current intensity or cumulative count of charge flowing in the storage element.

4. A method (100) for providing electrical energy to at least one power consumption component or at least one power recovery component or at least one power consumption and recovery component (1021) of an electrical device or for recovering electrical energy provided by at least one power consumption component or at least one power recovery component or at least one power consumption and recovery component (1021) of an electrical device, wherein the electrical energy is transmitted or provided by a plurality of power generators (1011, 1012, 1013), wherein the plurality of power generators comprises more than two generators and each of the plurality of generators is electrically connected in parallel with the other generators, each generator comprising a computing unit (UC) k ), bidirectional power converter (CP k ) and electrical energy storage and recovery elements (ES k ), the method comprising the following steps is implemented and then repeated by each of the plurality of generators (1011, 1012, 1013) according to a repetition time frequency: - by the computing unit (UC) of the generator k ) reads the setting value (V) of the power converter of the generator k ) and the set value of the power converter of the other generator (V k ) value; - by the computing unit (UC k ) reads the operating status of the generator (N k ), and the operating state (N) of each of the other generators in the plurality of generators (1011, 1012, 1013) k ) value; - by the computing unit (UC k ) sets the power converter of the generator to a set value (V k ) and the operating state of the generator (N k )'s value is transmitted (103) to said other generators; - by the computing unit (UC k ) from the operating state of the generator (N k ) and the operating state (N) of each of the other generators in the plurality of generators (1011, 1012, 1013) k ) to calculate (104) the number of generators (1011, 1012, 1013) in a certain operating state; - by the computing unit (UC k ) is calculated (104) according to the following storage element (ES) of the generator k ) charging or discharging power (Pcal k ): - the charging or discharging electric power (Pcal) of each storage and recovery element of the generator and the other generators (1011, 1012, 1013) k ) setting value (V k ), and - a determined setpoint power P and the number of generators (1011, 1012, 1013) in a determined operating state, The charging or discharging electric power (Pcal) of each storage element of each generator of the plurality of generators k ) is equal to the determined set point electrical power P; - based on the charging or discharging electric power (Pcal) calculated by the calculation unit of the generator (1011, 1012, 1013) k ) to monitor (105) the set value (V) of the storage and recovery element of the generator (1011, 1012, 1013) k ), in, The set point electric power P is adjusted according to the difference between the line voltage TM1 measured at the terminals of the electric energy generator and the set point voltage TC of the electric device, If the line voltage TM1 is equal to the set point voltage TC due to the absence of the at least one power consumption component or the at least one power recovery component or the at least one power consumption and recovery component (1021) on the line, the set point power P is zero, If TM1>TC, the set point electric power P is determined in proportion to the voltage difference, and the electric energy storage and recovery element (ES k ) according to the calculation unit (UC k ) is calculated for charging, If TM1 < TC, the setpoint electric power P is determined to be proportional to the voltage difference, and the electrical energy storage and recovery element (ES k ) discharges according to the calculation of the calculation unit (UC k ).

5. The method (100) according to claim 4, wherein: The charging or discharging power (Pcal k ) setting value (V k ) is a Lyapunov function.

6. The method (100) according to any one of claims 4 or 5, wherein: The repetition time frequency is determined at least in part as a function of an operating frequency or a cut-off frequency of a power converter of the generator.

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