WO2019030048A1 - Dispositif de stockage d'énergie électrique - Google Patents

Dispositif de stockage d'énergie électrique Download PDF

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Publication number
WO2019030048A1
WO2019030048A1 PCT/EP2018/070706 EP2018070706W WO2019030048A1 WO 2019030048 A1 WO2019030048 A1 WO 2019030048A1 EP 2018070706 W EP2018070706 W EP 2018070706W WO 2019030048 A1 WO2019030048 A1 WO 2019030048A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical energy
line segment
energy storage
storage arrangement
module
Prior art date
Application number
PCT/EP2018/070706
Other languages
German (de)
English (en)
Inventor
Bernhard Beck
Alexander Wittkowski
Original Assignee
Innogy Se
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 Innogy Se filed Critical Innogy Se
Priority to EP18758543.5A priority Critical patent/EP3665756A1/fr
Publication of WO2019030048A1 publication Critical patent/WO2019030048A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • the application relates to an electrical energy storage device, comprising at least one memory module, configured for storing electrical energy.
  • the application relates to a system having at least one electrical energy storage arrangement and a method for operating an electrical energy storage arrangement.
  • a wind turbine is set up to convert the kinetic energy of the wind into electrical energy.
  • a photovoltaic array is set up to convert the light energy of the sun into electrical energy.
  • FIG. 1 shows an exemplary system 100 with an electrical energy storage arrangement 102 according to the prior art.
  • the system 100 includes an internal power grid 104, such as an internal power grid 104 of a building or part of a building (e.g.
  • the internal power network 104 is via a network connection 108 and a sub-distribution device 110 connected to an external power network 106, such as a public power grid 106.
  • the sub-distribution device 110 also called distribution box or fuse box, includes fuse and switching elements for distributing the electrical energy from the external power network 106 to at least one consumer 112, which is located in the internal power network 104.
  • the electrical energy is distributed to a plurality of line segments 116.
  • line segments 116 For the sake of a better overview, only two consumers 112 are shown in more detail on only one wiring harness 116 or a line segment 116.
  • the lines of a line segment 116 of the internal power network 104 are designed for a certain maximum permissible state parameter [value], in particular a maximum permissible current (value) (for example 16 A).
  • value a maximum permissible current
  • an electrical energy storage arrangement of the prior art were connected directly to the internal power supply, for example to the lines of a line segment, via a conventional socket (e.g., Schuko box), there would be a risk of overloading the lines. In particular, there is a risk that a higher current than the maximum allowable current can flow. For example, a current of 16 A can be fed from the external network. If, in addition, power is supplied from a connected electrical energy store, the current flowing in the lines exceeds the maximum permissible current. This can lead to considerable damage to the internal power grid and / or the building. For this reason, it is provided in the prior art, the electrical
  • Energy storage arrangement 102 not in the internal power grid 104, but in front of the internal power grid 104, in particular in front of the sub-distribution device 110 to order.
  • Energy storage device 102 102 at this point, however, extremely complex and complex. In particular, an installation is to be made regularly only by professionals. Therefore, the application is based on the object to provide an electrical energy storage device available, which is a simple
  • the object is achieved according to a first aspect of the application by an electrical energy storage device according to claim 1.
  • Energy storage arrangement comprises at least one memory module, configured for storing electrical energy.
  • the electrical energy storage arrangement comprises at least one electrical connection module, configured for electrically connecting the electrical energy storage arrangement to a first
  • the electrical energy storage arrangement comprises at least one current steering device, configured for feeding electrical energy into at least one second line segment, such that a maximum permissible state parameter of the second line segment is maintained.
  • the electrical energy storage arrangement comprises at least one storage module.
  • the memory module is configured to store electrical energy.
  • the memory module may be charged by an electric current and discharged in an infeed mode by an electric current.
  • the memory module may be a rechargeable memory module in the form of a rechargeable battery.
  • the electrical energy storage arrangement comprises at least one electrical connection module.
  • the electrical connection module is at least configured to establish an electrical connection to a line segment (in particular of the internal power network) in order to allow at least one transmission of electrical energy from the line segment to a memory module
  • the electrical connection module may be used for bi-directional transmission of
  • an electrical connection module may be a plug (possibly with cable), a socket or a means for wireless power transmission. It is understood that a coupling with another power grid is possible.
  • an internal power network is to be understood as meaning a power network which is connected to a sub-distribution device and may have a plurality of electrical consumers. According to the application, in contrast to the prior art
  • the current-steering device is set up for feeding electrical energy into at least one second line segment, such that a maximum permissible state parameter of the second line segment is maintained.
  • a state parameter of a line segment is, in particular, to be understood as meaning a parameter which provides information about the current carrying capacity of the line Line segments are.
  • a maximum permissible state parameter indicates a permissible value at which no damage to the line segment (due to electrical energy) occurs.
  • Exemplary state parameters are
  • a maximum permissible state parameter can therefore be a maximum permissible current, a maximum permissible temperature, etc.
  • the first line segment may be identical to the second line segment or the first line segment and the second line segment may be different (electrically separate) line segments.
  • the first line segment and the second line segment may be different line segments.
  • Stromlenkungs may comprise at least one switching module, adapted for feeding the electrical energy into the only with the electrical
  • Energy storage arrangement connectable second line segment.
  • two separate electrical connection modules may be provided. Via a first connection module and via the switching module, electrical energy can be conducted to the at least one memory module. In particular, a corresponding current can flow from the first line segment into the memory module via the switching module (in a charging mode). Furthermore, via a further connection module and via the switching module electrical energy from the
  • Memory module (only) are passed into the second line segment, in particular, a corresponding current in the second line segment (in a
  • Feed mode are fed.
  • a current flow in the first line segment from a memory module is not possible in this embodiment.
  • electrical energy can be conducted from the first line segment via the first connection module, the switching module and the further connection module in the second line segment.
  • a corresponding current can flow.
  • this electrical connection is at least opened, while electrical energy is fed from the memory module into the second line segment.
  • Line segment is limited in the second line segment to a predetermined current value. It is understood that the switching module can be formed of a plurality of switching elements. An overload of the second line segment of the internal power network can be prevented in a secure manner.
  • the current steering device may comprise at least one limiting module.
  • the limiting module can be set to limit the supplied electrical energy in the second line segment to a fixed, maximum allowable amount of electrical energy.
  • Energy amount (eg a maximum current (eg 2A, in particular 1.3A)) that can be fed, be chosen so that even at a maximum load of the line element (ie maximum possible supply of energy or electricity from the external power grid and maximum possible supply of energy or power from the memory module according to the predetermined, maximum allowable amount of electrical energy) no damage to the line segment may occur.
  • the maximum permissible status parameter of the line segment is maintained.
  • Line segment and the second line segment to be identical. This means in particular that the electrical energy storage arrangement only with one
  • Line segment is connected, can be tapped from the electrical energy and fed into the electrical energy. Sufficient security can be achieved in a particularly simple manner.
  • the electrical energy storage arrangement the
  • Stromlenkungs might comprise at least one controllable limiting module.
  • the controllable limiting module can be used to limit the supplied electrical energy into the second line segment as a function of at least one
  • the rule information may be based on at least one detected state parameter value ⁇ of the second line segment.
  • the first line segment and the second line segment may be identical.
  • at least one instantaneous state parameter (value) of the line segment can be detected. Based on the instantaneous state parameter of the line segment, the supplied electrical energy, in particular the fed-in electric current, can be regulated from the electrical energy storage arrangement such that the maximum permissible state parameter of the line segment is maintained. Damage can be prevented safely and intelligently.
  • the electrical energy storage arrangement may be formed in a modular manner.
  • the electrical energy storage arrangement may comprise at least one converter device, configured for releasably coupling at least one of the memory module, preferably of a plurality of memory modules, and for coupling the current-steering device.
  • a modular design allows for easy addition of storage capacity by adding or replacing additional memory modules.
  • a current-steering device can also be releasably coupled in order to enable an exchange.
  • the electrical energy storage arrangement can be operated in different operating modes. According to a preferred embodiment
  • the electrical energy storage device at least one Include control module.
  • the control module may be configured to control the operating mode of the electrical energy storage device.
  • the controller may depend on a receivable external control signal.
  • the control of the operating mode can in particular the switching at least between one
  • Charge mode and a feed mode include.
  • Other operating modes are possible, such as a sleep mode, etc.
  • the system comprises at least one electrical energy storage arrangement with a
  • Power steering device comprising at least one controllable limiting module.
  • the system comprises at least one measuring device, configured to detect the at least one state parameter of the second line segment.
  • the system can be arranged at least partially in a building.
  • the electrical energy storage arrangement can be connected to a line segment of an internal power network of the building via the electrical connection module in order to be able to receive and feed in electrical energy or electricity.
  • the electrical energy storage arrangement comprises at least one
  • the controllable limiting module can be designed to limit the electrical energy fed into the second line segment as a function of at least one receivable control information, the control information being based on at least one detected state parameter of the second line segment.
  • the system identifies the at least one state parameter
  • the measuring device can at least one current measuring means, voltage measuring means, power measuring means,
  • Frequency measuring means and / or temperature measuring means include to detect the at least one state parameter.
  • the system may comprise at least one wireless and / or wired communication network. Data can be exchanged via the communication network.
  • at least the measuring device and the electrical energy storage arrangement can be connectable to the communication network via corresponding transmitting and / or receiving modules.
  • a controllable limiting module is in particular arranged, the fed-in electrical energy in accordance with a
  • control information may include the sensed instantaneous state parameter (e.g., the current flowing in the line segment). Then, for example, the limiting module can compare the instantaneous state parameter with the maximum permissible state parameter in an evaluation and the feeding of the energy or the current from the electrical energy storage arrangement into the line segment
  • the evaluation can also be carried out in another device / element.
  • the evaluation in the measuring device or an additional evaluation device can be performed.
  • the evaluation in the measuring device or an additional evaluation device can be performed.
  • Energy storage device be receivable.
  • the aforementioned evaluation is particularly advantageous if the instantaneous total current is detected as the state parameter.
  • a central evaluation device can be used.
  • the system may comprise at least one evaluation device.
  • the evaluation device can be set up to evaluate a plurality of state parameters received via the communication network from a corresponding plurality of measuring devices.
  • Evaluation device may be configured to determine a control information based on the evaluation of the plurality of state parameters.
  • Evaluation device may be configured to cause a sending of the control information to at least one electrical energy storage device.
  • the evaluation may include forming an overall state parameter (value), for example, by summing
  • the evaluation device may be a central evaluation device, at least for the second line segment, into which energy can be supplied by the electrical energy storage arrangement
  • Evaluation device may preferably be integrated in a home automation controller. Alternatively, the evaluation device can also be integrated in the electrical energy storage arrangement.
  • system may include at least one (smart) socket electrically coupled to the second line segment.
  • the socket can be arranged in particular in a branch described above.
  • Socket can have the at least one measuring device.
  • the current drawn by the at least one consumer which can be coupled to the socket can be detected as the state parameter.
  • Condition parameters can be detected alternatively or additionally.
  • a plurality of sockets of a line segment can be configured accordingly.
  • the respectively detected state parameters can be transmitted to an evaluation device.
  • the system can be at least one with the second
  • Line segment electrically coupled (intelligent) segment security device include.
  • the segment securing device can be located in particular between the first consumer and a sub-distribution device.
  • Segment security device may have the at least one measuring device.
  • Yet another aspect is a method of operating an electrical
  • Energy storage arrangement in particular an electrical
  • Energy storage arrangement with a current steering device comprising at least one controllable limiting module.
  • the method comprises:
  • Energy storage device can be fed, and
  • Devices, modules and devices can be formed at least partially from hardware and at least partially from software.
  • FIG. 1 shows a schematic view of an exemplary system according to FIG.
  • FIG. 2 shows a schematic view of an embodiment of a system according to the present application
  • Fig. 3 is a schematic view of another embodiment of a
  • 3a is a schematic diagram showing the flow of current in a
  • Fig. 4 is a schematic view of another embodiment of a
  • Fig. 5 is a schematic view of another embodiment of a
  • Fig. 6 is a schematic view of another embodiment of a
  • Fig. 7 is a schematic view of an embodiment of a
  • Figure 2 shows a schematic view of an embodiment of a system 200 according to the present application with an embodiment of a
  • the system 200 is arranged in particular in (or on) a building 201.
  • the building 201 may be a residential building or an office building.
  • an internal power grid 204 is arranged.
  • the internal power grid 204 is connected via a sub-distributor 210 and a grid connection 208 to an external power grid 206, such as a public power grid 206.
  • This electrical connection can be a bidirectional electrical connection to draw electrical power from the external power grid 206 and generate electrical energy the external power grid 206 feed.
  • the sub-distribution apparatus 210 has circuit components and fuse components (not shown). These components are used in particular for distributing the electrical energy (electric current) to, in particular, a plurality of line segments 216.1, 216.2. It is understood that more than two
  • Line segments can be provided.
  • a photovoltaic array 218 is connected to the internal power grid 204.
  • the photovoltaic array 218 is configured to convert the light energy of the sun into electrical energy and transfer it into the internal power grid 204 (and / or the external power grid 206). feed.
  • further components eg inverters
  • system 200 includes at least one electrical
  • Energy storage arrangement 202 (two arrangements are exemplified here). In particular, it can be seen that an electrical energy storage arrangement 202 according to the application is electrically connected to a line segment 216.1, 216.2 of the internal power network 204 in a system 200 according to the application.
  • An illustrated electrical energy storage device 202 includes at least one memory module 222 configured to store electrical energy.
  • the memory module 222 can be charged by an electric current into the energy store in a charging mode.
  • the stored energy may be fed into the internal power network 204 from the memory module 222 in a feed mode.
  • an electrical energy storage arrangement 202 comprises a current steering device 228.
  • the current steering device 228 makes it possible, according to an application electrical energy storage device 202 to the internal power grid 204 of a building 201 or part of a building
  • the electrical energy storage arrangement 202 comprises the at least one current steering device 228, which is set up for feeding electrical energy into at least one second line segment 216.1, 216.2, such that one permissible current and / or another maximum permissible current
  • FIG. 3 shows a further schematic view of an exemplary embodiment of a system 300 according to the present application with a further one
  • Embodiment of an electrical energy storage device 302 according to the present application. To avoid repetition, essentially only the differences from the exemplary embodiment according to FIG. 2 will be described below. For the other components of the system 300, reference is made in particular to the above statements. In this embodiment (and also in the following embodiments), in order to provide a better overview, the presentation of further elements, such as electrical generators (e.g.
  • Photovoltaic system external power supply, mains connection, etc. omitted.
  • the sub-distribution device 310 is configured to receive the electrical energy received from the external power network, preferably to a plurality of first ones
  • an electrical connection module 326 for example a cable with a plug, is provided in order to couple the electrical energy storage arrangement 302 to the first line segment 316.1, for example via a socket.
  • Energy storage arrangement 302 two memory modules 322, which with a
  • Inverter 324 are coupled.
  • the inverter 324 is connected to a power steering device 328.
  • the current steering device 328 has in the present case at least one switching module 330.
  • the switching module 330 is configured to feed the electrical energy into a second line segment 316.2. Present are the first and the second
  • the second Line segment 316.2 can in this case via a further electrical
  • Connection module 332 may be connected.
  • the switching module 330 and in particular the electrical connection module 332 are configured such that electrical energy from the electrical energy storage arrangement, ie the electrical energy stored in the memory modules 322, can be fed only into the second line segment 316.2. In other words, it is not possible to feed stored electrical energy into the first line segment 316. 1 of the internal power grid 304.
  • FIG. 3a schematically shows the current flows which are correspondingly determined by the FIG. 3a
  • Reference numeral 311 denotes a first current flow. In particular, it is indicated by the arrow 311 that current can flow from the first line segment 316.1 into the further line segment 316.2. This current flow can for example be reduced or interrupted in a feed-in mode by a predefinable value.
  • a current may flow from the first line segment into the memory modules 322. This is indicated by the arrow 313.
  • the switching module 330 is electrically connected such that a current from the memory modules 322 can only flow into the second line segment 316.2. In particular, it becomes clear that a flow of current from the memory modules 322 into the first line segment 316.1 is not possible.
  • FIG. 4 shows a further schematic view of an exemplary embodiment of a system 400 according to the present application with a further one
  • the system 400 comprises at least one electrical energy storage arrangement 402, which is electrically connected to a line segment 416 of the internal power network 404 via an electrical connection module 426
  • Line segment 416 a first and second line segment.
  • Connection module 426 is set up in particular for bidirectional current flow.
  • the illustrated electrical energy storage arrangement 402 has a
  • the receiving module 438 is set up to receive at least one control information, in particular in the form of an (instantaneous) state parameter of the line segment 416.
  • control information may also be received that is based on a (current) state parameter of the
  • the receiving module 438 is configured for communication via at least one wireless communication channel of a communication network 442. It is understood that according to other variants, a wired communication channel and / or additionally a transmission module can be provided.
  • the system 400 comprises a measuring device 441, configured to detect the at least one state parameter.
  • exemplary state parameters which can be measured by suitably established measuring sensors are the (instantaneous) current, the (instantaneous) voltage, in particular the temperatures caused by the current flow
  • the measuring device 441 is presently integrated in a segment securing device 440.
  • the (intelligent) segment securing device 440 is in particular designed such that the associated line segment 416, that is, that of the
  • Measuring device 441 monitored line segment 416, such that at least one permissible current is not exceeded. For example, a maximum current flow of 16 A may be allowed. To ensure that this value is not exceeded, the measuring device 441 is set up in particular for continuous monitoring. In particular, the instantaneous current can be measured and transmitted via a transmission module 443 of the segment security device 440 to the reception module 438.
  • the controllable limiting module 436 is set up in a feed mode to regulate the fed-in electrical energy or the injected current as a function of the state parameter, that is to say in the present case the instantaneous current.
  • the regulation can take place in such a way that at most only so much current is supplied by the electrical energy storage arrangement 402 that the maximum permissible current, that is to say the maximum permissible state parameter of the line segment 416, is not exceeded. If, for example, a maximum current of 16 A is permitted and a current of 12 A has been measured, a feed current of at most 4 A can be supplied by the controllable limiting module 436.
  • FIG. 5 shows a further schematic view of an embodiment of a system 500 according to the present application with a further one
  • Energy storage device 502 a current steering device 528 with a controllable limiting module 536 on.
  • the system 500 includes a wireless and / or wired communication network 542.
  • the representation of transmitting and / or receiving modules in FIG. 5 has been dispensed with.
  • a plurality of measuring devices 541 are provided.
  • a measuring device 541 may in particular be formed in accordance with a measuring device 441 from the previous exemplary embodiment.
  • a measuring device 541 is integrated in a socket 546 electrically coupled to the first line segment 516. Via a (smart) socket 546, at least one electrical load 512 can be connected to the line segment 516.
  • the measuring device 541 detects, as the state parameter, in particular the current flowing via the corresponding socket 546. It is understood that in other variants, other or other state parameters can be detected.
  • Line segment 516 (to which the electrical energy storage device 502 is connected) connected sockets 546 have a measuring device 541.
  • the evaluation device 549 provided.
  • the evaluation device 549 can
  • the resources of the home automation controller 548 can be used by the evaluation device 549, for example a software module.
  • each measuring device 541 transmits the respectively detected
  • the evaluation device 549 is set up to evaluate the received state parameters and to generate at least one control information based on the evaluation.
  • the evaluation may in particular comprise the summation of all current values.
  • the Summation is the (instantaneous) total load of the line segment 516, ie in particular the total current determined.
  • the evaluation device 549 may determine a control information based on the determined total load of the line segment 516, that is based on at least one detected state parameter. For example, a maximum allowable current for the line segment 516 may be specified. In a comparison operation, a control information can be determined based on the maximum allowable current and the specific total current. If, for example, a maximum current of 16 A is permitted and a total current of 14 A has been measured, the evaluation device determines a permissible differential current of 2 A as control information.
  • This control information is sent to the at least one electrical
  • control information is made available to the controllable limiting module 536 of the current steering device 528.
  • the controllable limiting module 536 is set up in the
  • Feed mode the current that is fed into the line segment 516, according to the control information (for example, 2 A] limit.
  • the evaluation device may be configured to determine a corresponding number of control information, such that the maximum allowable current is not exceeded.
  • Energy storage arrangements may, for example, control information
  • FIG. 6 shows a schematic view of a still further embodiment of a system 600 according to the present application with another one
  • Embodiment of an electrical energy storage device 602 according to the present application To avoid repetition, essentially only the differences from the exemplary embodiments according to FIGS. 2, 3, 4 and 5 will be described below.
  • the other components of the system 600 is
  • the electrical energy storage arrangement 602 has in the present
  • a current steering device 628 with a non-adjustable limiting module 650 is configured to limit the current supplied to the line segment 616 during a feed mode to a fixed amount of energy such as a fixed maximum current.
  • the sub-distribution device 610 is arranged to enter the line segment of e.g. to limit the current supplied to an external power supply to a maximum value (for example 16 A). It has been recognized that a line segment (typically) has a higher current carrying capacity (e.g., 16 A + x A). In particular, a tolerance of 10% can be provided as a rule, which can be exploited according to the application. In the present embodiment it is provided that the
  • predetermined maximum current is limited to x A (e.g., 1.3 A).
  • x A e.g., 1.3 A
  • a current-steering device can have a switching module and a limiting module.
  • different electrical energy storage devices may be connected to a common internal power grid.
  • an electrical energy storage arrangement is constructed in a modular manner in particular and can therefore be easily expanded and / or changed. Thus, more memory modules can be added or a power steering device can be replaced.
  • FIG. 7 shows a schematic view of a (further) exemplary embodiment of an electrical energy storage arrangement 702 according to the present invention
  • the electrical energy storage arrangement 702 is particularly made to the above statements.
  • the electrical energy storage arrangement 702 comprises a control module 752.
  • the control module 752 is set up, the operating mode of the electrical
  • control module 752 may effect switching between a feed mode and a load mode. The switching may be based on an external control signal receivable by the control module 752.
  • the control signal may be based on the state of the internal and / or external power network.
  • the grid frequency of the external power grid can be detected and based on this the control signal can be generated.
  • the charging mode can be activated. In addition to the grid frequency, this can also be determined by evaluating the price of electricity.
  • a corresponding signal can be transmitted by a network operator.
  • the control module 752 performs the switching time-dependent (and / or demand-dependent). For example, switching times can be specified by a user (eg via a home automation controller). Alternatively or additionally, the control signal may be based on weather data.
  • a switchover can be effected depending on the weather data. If, for example, the weather data indicate that the sun is currently shining, switching to the charging mode can take place; in particular, in this case it can be assumed that the photovoltaic array generates electrical energy. On the other hand, if the weather data indicate heavy cloud cover, you can switch to the feed mode (or another mode). It is understood that also the weather data.
  • Energy generation of the photovoltaic array monitored and the control module 752 can be controlled based on this monitoring with a control signal.
  • Operating modes can give. For example, there may be a sleep mode in which neither power is supplied nor tapped from the line segment for charge.
  • the electrical energy storage arrangement - as already described - be connected to the home automation system.
  • Energy storage device evaluated and / or via a user terminal for example, tablet computer, smartphone, smartwatch, workstation, etc. are displayed.
  • FIG. 8 shows a diagram of an exemplary embodiment of a method according to the present application.
  • the method for operating an electrical energy storage arrangement according to the embodiments of Figures 4 and 5 can be used.
  • a first step 801 at least one state parameter of the
  • Line segment to which the electrical energy storage device is connected are detected. Based on this at least one (current) state parameter, the supply of the current from the electrical
  • Energy storage arrangement are regulated in the line segment in a further step 802 such that a maximum permissible state parameter of the line segment, such as a maximum allowable current or a maximum temperature is not exceeded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un dispositif de stockage d'énergie électrique (202, 302, 402, 502, 602, 702), comprenant au moins un module de stockage (222, 322, 422, 522, 622, 722), conçu pour le stockage d'énergie électrique, au moins un module de connexion électrique (226, 326, 426, 526, 626, 726), conçu pour la connexion électrique du dispositif de stockage d'énergie électrique (202, 302, 402, 502, 602, 702) à au moins un premier segment de ligne (216, 316.1, 416, 516, 616) d'un réseau électrique interne (204, 304, 404, 504, 604), duquel au moins de l'énergie électrique peut être prélevée, et au moins un dispositif de guidage de courant (228, 328, 428, 528, 628, 728), conçu pour l'alimentation d'énergie électrique dans au moins un deuxième segment de ligne (216, 316.2, 416, 516, 616) de telle façon qu'un paramètre d'état maximal permis du deuxième segment de ligne (216, 316.2, 416, 516, 616) soit maintenu.
PCT/EP2018/070706 2017-08-07 2018-07-31 Dispositif de stockage d'énergie électrique WO2019030048A1 (fr)

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EP18758543.5A EP3665756A1 (fr) 2017-08-07 2018-07-31 Dispositif de stockage d'énergie électrique

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DE102017117830.9 2017-08-07
DE102017117830.9A DE102017117830A1 (de) 2017-08-07 2017-08-07 Elektrische Energiespeicheranordnung

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DE (1) DE102017117830A1 (fr)
WO (1) WO2019030048A1 (fr)

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DE102021004783A1 (de) 2021-09-22 2023-03-23 Wattando GmbH Verfahren zur Regelung einer Einspeiseleistung

Citations (3)

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GB2407718A (en) * 2004-07-07 2005-05-04 Voller Energy Ltd Portable tool storage device with power supply unit
US20120229077A1 (en) * 2011-03-07 2012-09-13 Denso Corporation Electric power supply system and method for controlling electric power discharge
DE102013217743A1 (de) * 2013-09-05 2015-03-05 Robert Bosch Gmbh Verfahren und Steuergerät zum Begrenzen einer elektrischen Belastung in einem Netzzweig eines elektrischen Netzes

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US20090230783A1 (en) * 2008-03-10 2009-09-17 Lane Austin Weed Solar Portable Power Center
WO2014030348A1 (fr) * 2012-08-24 2014-02-27 パナソニック株式会社 Dispositif de source de puissance
DE102012110110B4 (de) * 2012-10-23 2016-12-08 Sma Solar Technology Ag Wechselrichter, Verfahren zum Betreiben eines Wechselrichters und Energieversorgungsanlage mit einem Wechselrichter
DE102014115596B4 (de) * 2014-10-27 2016-06-02 Pv4Life Gmbh Hybride Zusatzeinrichtung für einen Stromerzeuger und Insel-Netzsystem mit dieser

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Publication number Priority date Publication date Assignee Title
GB2407718A (en) * 2004-07-07 2005-05-04 Voller Energy Ltd Portable tool storage device with power supply unit
US20120229077A1 (en) * 2011-03-07 2012-09-13 Denso Corporation Electric power supply system and method for controlling electric power discharge
DE102013217743A1 (de) * 2013-09-05 2015-03-05 Robert Bosch Gmbh Verfahren und Steuergerät zum Begrenzen einer elektrischen Belastung in einem Netzzweig eines elektrischen Netzes

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EP3665756A1 (fr) 2020-06-17

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