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WO2023001365A1 - Procédé de fonctionnement d'un onduleur, onduleur et système de génération d'énergie comprenant un tel onduleur - Google Patents

Procédé de fonctionnement d'un onduleur, onduleur et système de génération d'énergie comprenant un tel onduleur Download PDF

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Publication number
WO2023001365A1
WO2023001365A1 PCT/EP2021/070220 EP2021070220W WO2023001365A1 WO 2023001365 A1 WO2023001365 A1 WO 2023001365A1 EP 2021070220 W EP2021070220 W EP 2021070220W WO 2023001365 A1 WO2023001365 A1 WO 2023001365A1
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WO
WIPO (PCT)
Prior art keywords
inverter
parameter
feed
tariff
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2021/070220
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German (de)
English (en)
Inventor
Matthias GROENE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMA Solar Technology AG
Original Assignee
SMA Solar Technology AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMA Solar Technology AG filed Critical SMA Solar Technology AG
Priority to PCT/EP2021/070220 priority Critical patent/WO2023001365A1/fr
Publication of WO2023001365A1 publication Critical patent/WO2023001365A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"

Definitions

  • the invention relates to an operating method for an inverter connected to an AC power supply network on the AC side, in which measured variables detected inside the inverter are monitored and regulated to comply with limit values of these measured variables that limit wear on the inverter.
  • the invention also relates to an inverter which is suitable for carrying out this operating method.
  • the inverter includes an AC-side power connection that can be connected to an AC power supply network and at least one DC-side power connection that can be connected to a DC energy source.
  • the inverter includes a controller for controlling and regulating the operation of the inverter.
  • the inverter also includes at least one sensor device for measuring measured variables, with the controller being designed to receive the measured variables and regulate them in order to comply with limit values that limit wear on the inverter.
  • Inverters are used to convert DC voltage into AC voltage and/or vice versa.
  • Such an inverter can be bidirectional, so that it can convert the two voltage forms into one another in both directions.
  • Such a bidirectional inverter can be used not only to feed electrical energy from the at least one DC energy source into the AC-connected power supply network, but also to route electrical energy from the power supply network to a battery device that functions, for example, both as a DC energy source and as a DC energy sink .
  • the inverter includes an inverter bridge, for example, the inverter bridge including controllable power semiconductor switches.
  • the inverter bridge can, for example, include three half-bridges for 3-phase operation.
  • the inverter bridge can also have, for example, a two-level or multi-level topology, in particular a 3-level topology.
  • the inverter bridge can have a BSNPC topology (Bidirectional Switch Neutral Point Clamped) or an ANPC topology (Active Neutral Point Clamped).
  • the invention also relates to an energy supply system with an inverter and at least one DC energy source connected to the inverter on the DC side.
  • the inverter can be connected to an AC power supply grid on the AC side and is designed to convert the DC voltage provided by the at least one DC energy source into AC voltage for feeding electrical energy into the AC power supply network.
  • the inverter of the energy supply system can be designed according to the inverter of the type mentioned at the outset, so that reference is also made to the explanations given above with regard to the inverter.
  • the inverter of the energy supply system can be connected to the AC power supply network without a transformer or via a transformer.
  • the at least one DC energy source of the energy supply system can be, for example, a photovoltaic generator or a DC energy source operated with wind power or a battery device.
  • the photovoltaic generator this can include a plurality of solar modules that generate electrical energy from sunlight.
  • the solar modules of the photovoltaic generator can be connected together to form a plurality of strings each comprising a series connection of solar modules.
  • each of the strings can be interconnected in parallel and jointly provide a total DC voltage between two output poles of the photovoltaic generator at a DC-side power connection of the inverter.
  • each of the strings could also be connected as a separate DC energy source with its two string output poles to a separate DC-side power connection of the inverter.
  • limit values can be stored in a controller of the inverter, which are complied with during operation of the inverter in order to Limiting the wear and tear of the inverter, so that the lifespan of the inverter is likely to correspond to a lifespan of the product that was guaranteed when the product was sold.
  • the inverter When designing an inverter, it is therefore customary to determine measured variables that are to be monitored in connection with wear and tear of the inverter and to store limit values for these measured variables in the controller in accordance with a desired service life of the product.
  • the measured variables can be, for example, a temperature inside the inverter and measured current and voltage values in the power path of the inverter.
  • the invention is based on the object of specifying an inverter and an operating method for such an inverter and a power generation system with such an inverter, with which a particularly flexible and economically improved mode of operation of the inverter is made possible.
  • the object is achieved according to the invention in an operating method of the type mentioned at the outset in that a controller of the inverter regulates the limit values as a function of a parameter representing a current feed-in tariff.
  • the invention is thus based on a new paradigm, according to which a guaranteed service life of an inverter is not an end in itself, but primarily serves to set up plannable costs for an energy supply system in relation to a probable yield.
  • This goal can also be achieved with the more flexible mode of operation according to the invention, for example in times when there is a higher feed-in tariff, higher wear and thus an operation of the inverter that shortens the service life is accepted.
  • the more flexible mode of operation of the inverter enables, for example, a particularly gentle mode of operation at times when there is a lower feed-in tariff, so that less wear and tear and thus an extension of the service life is made possible when the feed-in tariff is lower.
  • This more flexible mode of operation of the inverter means that it can react to changes in the feed-in tariff system and adapt to it in a sensible way, in contrast to the previously known rigid procedure, in which the wear and tear of the inverter is always limited to a predetermined, constant value. Even if, for example, the guaranteed service life of the inverter should not be achieved with the mode of operation of the inverter according to the invention, it is still possible in this case to achieve at least the same cost/benefit ratio as with the conventional operating method.
  • the inverter receives a parameter representing a current feed-in tariff, and the controller of the inverter regulates at least one of the limit values of the measured variables used to limit the wear as a function of the received parameter.
  • This parameter can be, for example, a measured value of a network frequency currently prevailing in the AC power supply network. Since the grid frequency can be used to determine an energy requirement in the grid, the controller can determine an approximate value for the current feed-in tariff using the measured value and a model stored in the controller between the grid frequency and the feed-in tariff of the grid operator. However, the parameter can also be, for example, a data record that is transmitted to the inverter from a control center of the AC power supply network and represents a current feed-in tariff. Regardless of the transmitting source of the parameter, the inverter can receive the parameter representing a current feed-in tariff, for example at time intervals, the parameter being current at the time of receipt, for example, and being used directly by the controller to regulate the limit values.
  • the inverter could also receive the parameters in clusters at time intervals, for example, so that the parameters together cover a period of time and individually represent a current feed-in tariff for a future period of the time period assigned to the respective parameter.
  • the controller can first temporarily store the parameters received in clusters and, at the beginning of the respective time period, use the parameter representing a current feed-in tariff for this time period to regulate the limit values.
  • the parameter can also represent a current feed-in tariff depending on a feed-in power. For example, if the current feed-in tariff grants a first tariff up to a feed-in power value and, in addition, a tariff of zero cents for the difference above this feed-in power value.
  • the parameter could also refer to a guaranteed duration of the feed-in tariff, so that the controller regulates the limit values depending on the parameter in such a way that the lifetime of the inverter corresponds to the guaranteed duration of the feed-in tariff.
  • the controller of the inverter changes the limit values of the measured variables depending on this parameter representing a current feed-in tariff with the aim of at least compensating for a change in yield of the inverter predicted based on the changed limit value with a change in wear predicted based on the changed limit value.
  • a forecast waiver of a possible energy yield due to a changed limit value can be determined in terms of value and compared with a forecast value-based avoidance of wear through the change in limit value, and the change in limit value can be selected in such a way that the avoidance of wear exceeds the value of the yield waiver or at least compensates for it.
  • a predicted additional yield can be determined in terms of value by a changed limit value and compared with a predicted additional wear and tear due to the change in limit value, and the change in limit value can be selected in such a way that the additional yield exceeds the additional wear in terms of value or at least compensates for it.
  • a value-based determination of a changed wear or a changed yield can include a prognosis of a power available on the DC side, which can include, for example, an insolation prognosis in the case of a photovoltaic system connected on the DC side. From this, the duration and the extent of a limitation of the power converted by the inverter can be determined and evaluated based on a specific selection of the limit value.
  • the additional or reduced yield determined in this way can be evaluated with the aid of the received parameter representing a current feed-in tariff.
  • the increased or reduced wear can be evaluated by modeling an influence on the service life and a predetermined value of the inverter or its repair or replacement costs.
  • the controller can, for example, initially set the limit values to standard limit values that limit the wear to a standard wear and tear, and compare the received parameters with a first and second parameter range, the first parameter range comprising parameters that at a distance from a standard feed-in tariff represent a lower feed-in tariff than the standard feed-in tariff, so that when the parameter changes to this first parameter range, the controller adapts the limit values so that they limit a lower level of wear than the standard wear.
  • the second parameter range can, for example, include parameters that represent a feed-in tariff below an economic remuneration limit, so that when the parameter changes to this second parameter range, the controller stops feeding in until the parameter again represents a feed-in tariff above the economic remuneration limit.
  • the economic compensation limit value can correspond to a feed-in tariff at which operation of the inverter appears uneconomical, for example 2 cents.
  • the first and second parameter range can, for example, be stored in the controller when designing the inverter or, for example, entered during the installation of the inverter via an interface of the device.
  • a matrix can be stored in the controller for regulating the limit values for the measured variables as a function of the parameter, which matrix specifies a functional relationship between the parameter and the respective limit value of a measured variable.
  • the wear of the inverter limited by the limit values can be limited by the matrix, for example, so that at the maximum feed-in power made possible by the limit values, at least a desired amount is generated over the expected service life of the inverter with this wear or, if this is too low feed-in tariff is not possible or reasonable, the inverter stops its feed-in operation.
  • the controller adjusts at least one of the limit values depending on the parameter that represents a current feed-in tariff and lies in this parameter range in such a way that these limit a higher or lower wear compared to a standard wear, depending on whether the parameter range represents a higher or lower feed-in tariff compared to the standard parameter.
  • the standard wear can be a mean value over time of a wear that occurs when the inverter is operated when the measured values are limited by standard limit values with the maximum possible power throttled by the limit values.
  • the standard wear leads to an expected standard lifetime of the inverter.
  • the standard service life can be a period of 20 years, for example.
  • the standard limit values can correspond to a usual interpretation of these limit values of the measured variables, which the person skilled in the art would select during the interpretation in order to be able to guarantee a certain guaranteed standard service life of the product on average.
  • variable feed-in tariff system In order to be able to offer an attractive cost/benefit ratio between production costs and expected yield with this design, it is variable feed-in tariff system assume a mean value over time or a feed-in tariff that dominates over time during normal operating times of the inverter, whereby this can then be referred to as the standard feed-in tariff.
  • a parameter that represents such a standard feed-in tariff can thus be referred to as a standard parameter.
  • standard thus correspond to sizes and assumptions that can be used sensibly in the state of the art in the previously usual mode of operation, in which the limit values remain unregulated and are specified during the design. The person skilled in the art knows how the person skilled in the art can select such sensible values for the standard sizes depending on the product.
  • the limit values of the observed measured variables associated with the individual parameter ranges are stored in the controller, which in the simplest case are constant for each parameter range.
  • the limit values for a parameter range that includes parameters that represent a higher feed-in tariff than a standard feed-in tariff can be selected in such a way that the limit values limit a higher maximum power, higher wear and a shorter expected service life than the standard - limit values is the case, whereby the product of the maximum power and the expected service life can be selected to be approximately the same as the product of the maximum power at standard limit values and the standard service life.
  • variable feed-in tariff system dominates in terms of time, it is advantageous to place the emphasis on an increase in the maximum power in the case of the seldom occurring higher feed-in tariffs and to accept a reduction in the service life, since the remaining time is then missing Statistically only a lower feed-in tariff would have accrued.
  • the more flexible mode of operation of the inverter according to the present embodiment of the invention thus enables a higher yield to be generated if the limit values are selected appropriately. This also applies analogously to a parameter range that includes parameters that represent a lower feed-in tariff.
  • the controller stops feed-in operation of the inverter when the parameter changes to this lowest parameter range.
  • the lowest parameter range can be parameters that represent a feed-in tariff of less than 2 cents. With a feed-in tariff below 2 cents, it can be more advantageous to protect the inverter during this time.
  • the controller adjusts the limit values dynamically and depending on the parameter at least within one parameter range of the at least one parameter range, so that they limit wear that is higher or lower in comparison to the feed-in tariff characterized by the parameter the other parameters of the parameter area.
  • the controller thus adapts the limit values when the parameter changes in the parameter range and also when the parameter changes within the parameter range.
  • the parameter is received by the inverter via a communication link from a control center of the AC power supply network or an information service or from a sensor device monitoring a network frequency.
  • the at least one changed limit value can include one of the following monitored measured variables of the inverter:
  • the limit value is preferably changed immediately after the parameter has been received.
  • the change in wear as well as a change in the feed power of the inverter caused by the change in the limit value also take effect as early as possible.
  • the at least one limit value is reset to a standard value if no parameter (32) is received within a specified period of time.
  • the default value can be a limit that represents a compromise between yield and wear under typical operating conditions.
  • a further object of the invention is to specify an inverter of the type mentioned at the beginning, with which a particularly flexible mode of operation of the inverter is made possible.
  • the object according to the invention is achieved in an inverter of the type mentioned at the outset in that the controller is set up to change the limit values as a function of a parameter representing a current feed-in tariff.
  • the inverter according to the invention is suitable for carrying out the operating method according to claim 1.
  • the controller can include one or more microcontrollers in which one or more software program products are stored for carrying out the programs during operation of the inverter, with at least one software program product ensuring compliance with the limit values monitors the measured variables and, if the limit values are threatened to be exceeded, initiates suitable measures to maintain the corresponding limit value and at least one software program product regulates the limit values depending on the parameters.
  • the controller has appropriate interfaces for receiving the parameters and the measured variables.
  • the inverter is designed and set up to carry out the operating method according to at least one of claims 2 to 5.
  • a further object of the invention is to specify an energy supply system of the type mentioned at the beginning, with which a particularly flexible mode of operation of the inverter is made possible.
  • the object according to the invention is achieved in an energy supply system of the type mentioned at the outset in that the inverter is designed according to one of claims 6 or 7 .
  • the inverter is designed according to one of claims 6 or 7 .
  • FIG. 1 schematically shows an energy supply system according to a first exemplary embodiment of the invention.
  • FIG. 2 is a diagram showing a linear dependency of a parameter on a variable feed-in tariff, according to a second exemplary embodiment of the invention
  • FIG. 3 is a diagram showing a dependence of wear on the inverter on a limit value of a temperature in its interior according to a third exemplary embodiment of the invention
  • FIG. 4 is a schematic diagram showing a maximum power of the inverter as a function of a limit value of a temperature inside it, according to a fourth exemplary embodiment of the invention.
  • FIG. 5 is a diagram showing a relationship between the anticipated service life of the inverter and a maximum output of the inverter according to a fifth exemplary embodiment of the invention.
  • FIG. 1 schematically shows an energy supply system 1 according to a first exemplary embodiment of the invention.
  • the energy supply system 1 has an inverter 2 which is connected on the DC side to a DC energy source 3 of the energy supply system 1 with a DC-side power connection 8 .
  • the DC energy source 3 is designed as a photovoltaic generator 3a and includes solar modules 4 that are connected in series and form a so-called string 5 .
  • the string 5 is connected to a connection terminal 6 with its positive pole and to a connection terminal 7 of the DC-side power connection 8 of the inverter 2 with its negative pole.
  • the DC-side power connection 8 of the inverter 2 is connected inside the inverter 2 via an intermediate circuit 9 and an inverter bridge 11 comprising three half-bridges 10 Inverter 2 connected to an AC-side power terminal 12 of the inverter 2.
  • the inverter 2 With this AC-side power connection 12 , the inverter 2 is connected to an external public AC power grid 15 via a transformer 14 included in the energy supply system 1 .
  • the energy supply system 1 also has a second DC energy source in the form of a battery device 18 which is connected to the intermediate circuit 9 via a further DC-side power connection 19 of the inverter.
  • the inverter bridge 11 is bidirectional, so that the battery device 18 can receive electrical energy from the AC power supply network 15 and from the photovoltaic generator 3a and, if necessary, can feed it back into the intermediate circuit 9 .
  • a battery management system 20 is shown as a component of the battery device 18 .
  • the battery device 18 includes a large number of battery cells, which are not shown explicitly for the sake of clarity.
  • a controller 22 of the inverter 2 for controlling and regulating the operation of the inverter is also shown. There are communication connections and/or control lines between the controller 22 and numerous components of the inverter 2 . For the sake of clarity, these connections were also not shown explicitly, with a few exceptions.
  • a sensor device 24 for measuring measured variables inside the inverter 2 is connected to the controller 22 via a communication link 25 for transmitting the measured variables measured by the sensor device.
  • the measured variables are regulated by the controller 22 in such a way that they comply with limit values that limit wear, the limit values being stored in the controller. Irrespective of this, the sensor device 24 can be designed for measuring further measured variables and/or can comprise a plurality of components arranged spatially separately.
  • the measured variables and limit values of these measured variables considered within the scope of this invention are selected in such a way that they are suitable for limiting wear on the inverter 2 .
  • a measured variable can be a temperature value inside the inverter housing 27 and other measured variables considered within the scope of this invention can be current and voltage values, based on which a current electrical feed power of the inverter 2 can be determined.
  • the communication connection 30 can be a connection that is not wired, at least in sections.
  • the controller 22 regulates the limit values of the measured variables depending on the parameter (see Figure 2 Pos. 32), so that by means This more flexible mode of operation of the inverter 2 can react to the fluctuations in the feed-in tariff with a time-variable feed-in tariff (see FIG. 2 item 33). For example, in that the controller 22 increases the wear when the feed-in tariff rises and reduces the wear when the feed-in tariff falls.
  • FIG. 2 shows a diagram which represents a possible linear relationship 31 between the parameter 32 and a feed-in tariff 33 represented by the parameter 32 .
  • the parameter 32 is plotted as a number in units of 1 on an axis 34 .
  • a feed-in tariff 33 is plotted in cents on an axis 35 .
  • a parameter of 3 represents a feed-in tariff of 3 cents.
  • a remuneration limit of 36 is drawn in at 2 cents. Below this remuneration limit value 36, it can make sense to reduce wear on the inverter (see FIG. 1 item 2) by setting the feed-in operation to zero and only resume it again after the remuneration limit value 36 has been exceeded.
  • a standard parameter 37 is entered for a feed-in tariff of 10 cents and a first parameter range 38 in the range from 3 to 6, with the inverter (see Figure 1 item 2) upon receiving a parameter 32 within this first parameter range 38 can adapt the limit values in such a way that they limit less wear on the inverter (see Figure 1 item 2) than with the standard parameter 37.
  • the controller of the inverter can stop the feed-in operation in order to protect the inverter as long as the currently received parameters 32 fall within this lowest parameter range 39 .
  • FIG. 3 schematically shows a diagram according to a third exemplary embodiment of the invention.
  • Wear 40 is plotted on an axis 41 in [%/year].
  • a limit value 42 for a temperature in [°C], which is measured inside the inverter housing, is plotted on an axis 43 .
  • the sensor device measuring the temperature can be arranged in the area of functionally essential components whose aging is temperature-dependent.
  • the wear 40 of the inverter is essentially exponential to the limit value 42 of the temperature.
  • a wear rate of 5%/year corresponds to a service life of the inverter of 20 years.
  • the limit value 42 of the temperature is set to 75° C. for this wear 40 .
  • Figure 4 shows schematically, based on a fourth exemplary embodiment of the invention, a relationship 50 between a maximum power 46 in [MW] of the inverter plotted on an axis 47 and a limit value 42 of a temperature measured inside the inverter housing in [°C] plotted on an axis 48 ]
  • the temperature can be measured in accordance with the explanations relating to FIG.
  • the limit values 42 of the temperature at 60° C., 75° C. and 90° C. the corresponding maximum powers 46 of the inverter according to the fourth exemplary embodiment of the invention, throttled due to the temperature limitation, are shown in each case.
  • the relationship could also have non-linear curves if, for example, cooling of the inverter is controlled accordingly.
  • Figure 5 schematically shows a diagram according to a fifth exemplary embodiment of the invention, the diagram showing a relationship between a maximum power 46 of the inverter (plotted on an axis 53 of the diagram in the unit [MW]) and an expected service life 51 of the inverter (plotted on an axis 52 of the chart in years).
  • the diagram shows three different settings 54a, 54b, 54c for three parameter ranges, which the control of the inverter according to the fifth exemplary embodiment sets by appropriately adjusting the limit values (see FIG. 3, 4 item 42).
  • setting 54b a temperature limit of 75°C is set, which in the given example leads to a maximum feed-in power of 2.5 MW.
  • a standard wear limited by the limit value would lead to an expected standard lifetime of 20 years.
  • the settings 54a, 54b, 54c are based on a relationship between temperature and service life, which assumes that the service life will be halved for an increase of 10°C.
  • the setting 54b shown corresponds to a standard setting, a standard feed-in tariff of 8 cents being assumed.
  • the setting 54a shown enables the controller, if the feed-in tariff drops from 8 cents to 6 cents, by lowering the temperature limit value to 70 °C with a maximum feed-in power of 2.43 MW and a theoretical extension of the expected service life to 28.28 years to at least compensate for the loss compared to a feed-in tariff of 8 cents.
  • the controller retains the setting 54b according to the exemplary embodiment shown.
  • the controller selects setting 54c according to the exemplary embodiment shown. This is a temperature limit of 77 °C, a maximum feed-in capacity of 2.57 MW and an expected lifespan of 17.48 years.
  • the values given for the three settings 54a, 54b and 54c have been rounded off and are therefore approximate.

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Abstract

L'invention concerne un procédé de fonctionnement d'un onduleur (2) qui est connecté côté courant alternatif à un réseau d'alimentation en courant alternatif (15), dans lequel des variables de mesure détectées par l'onduleur (2) à l'intérieur sont surveillées et commandées afin de respecter des valeurs limites (42) de ces variables de mesure, lesdites valeurs limites limitant l'usure (40) de l'onduleur (2). Le procédé de fonctionnement selon l'invention permet de faire fonctionner l'onduleur de manière particulièrement flexible afin d'optimiser l'utilisation de l'onduleur dans sa durée de vie. À cet effet, un dispositif de commande (22) de l'onduleur (2) commande les valeurs limites (42) en boucle fermée en fonction d'un paramètre (32) qui représente un tarif d'alimentation en courant.
PCT/EP2021/070220 2021-07-20 2021-07-20 Procédé de fonctionnement d'un onduleur, onduleur et système de génération d'énergie comprenant un tel onduleur Ceased WO2023001365A1 (fr)

Priority Applications (1)

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PCT/EP2021/070220 WO2023001365A1 (fr) 2021-07-20 2021-07-20 Procédé de fonctionnement d'un onduleur, onduleur et système de génération d'énergie comprenant un tel onduleur

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PCT/EP2021/070220 WO2023001365A1 (fr) 2021-07-20 2021-07-20 Procédé de fonctionnement d'un onduleur, onduleur et système de génération d'énergie comprenant un tel onduleur

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023125182A1 (de) 2023-09-18 2025-03-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Anordnung zur Einspeisung von elektrischer Energie einer dezentralen Photovoltaikvorrichtung in ein zentrales Stromnetz

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Publication number Priority date Publication date Assignee Title
US20090020286A1 (en) 2007-07-17 2009-01-22 Johnson Rick D Plugging a Mined-Through Well
WO2012119232A1 (fr) * 2011-03-09 2012-09-13 Solantro Semiconductor Corp. Onduleur comportant des condensateurs de liaison cc ayant une plus grande durée de vie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090020286A1 (en) 2007-07-17 2009-01-22 Johnson Rick D Plugging a Mined-Through Well
WO2012119232A1 (fr) * 2011-03-09 2012-09-13 Solantro Semiconductor Corp. Onduleur comportant des condensateurs de liaison cc ayant une plus grande durée de vie

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DE102023125182A1 (de) 2023-09-18 2025-03-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Anordnung zur Einspeisung von elektrischer Energie einer dezentralen Photovoltaikvorrichtung in ein zentrales Stromnetz

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