CN116826811A - Energy storage system, energy supply method and device thereof and storage medium - Google Patents
Energy storage system, energy supply method and device thereof and storage medium Download PDFInfo
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- 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
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- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/109—Scheduling or re-scheduling the operation of the DC sources in a particular order, e.g. connecting or disconnecting the sources in sequential, alternating or in subsets, to meet a given demand
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- 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
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- 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
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an energy storage system, an energy supply method and device thereof and a storage medium. Wherein, this energy storage system can include: the first off-grid energy storage system and the first parallel grid energy storage system are mutually switched, wherein the first off-grid energy storage system is used for outputting energy to energy consumption equipment in an outdoor scene through a first bidirectional inverter in an off-grid state; the first grid-connected energy storage system is connected with the first off-grid energy storage system and is used for outputting energy to energy consumption equipment in an indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel. The invention solves the technical problem of single function of the energy storage system.
Description
Technical Field
The invention relates to the field of energy storage equipment, in particular to an energy storage system, an energy supply method, an energy storage device and a storage medium thereof.
Background
At present, outdoor portable mobile power supply is mostly independent product, and only limited to use under off-grid scene, indoor grid-connected energy storage equipment also is independent product, and only limited to use indoors, can't take outdoor use, in order to satisfy the user demand, the user can only purchase two kinds of different products in order to satisfy different application scenes, exists the single technical problem of energy storage system's function.
Aiming at the technical problem of single function of the energy storage system, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the invention provides an energy storage system, an energy supply method, an energy storage device and a storage medium thereof, which are used for at least solving the technical problem of single function of the energy storage system.
According to one aspect of an embodiment of the present invention, an energy storage system is provided. The energy storage system may include: the first off-grid energy storage system is used for outputting energy to energy consumption equipment in an outdoor scene through a first bidirectional inverter in an off-grid state; the first grid-connected energy storage system is connected with the first off-grid energy storage system and is used for outputting energy to energy consumption equipment in an indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
According to one aspect of an embodiment of the present invention, a method of powering an energy storage system is provided. The method may include: detecting that a scene where the energy storage system is located is an outdoor scene, and controlling the first off-grid energy storage system to output energy to energy consumption equipment in the outdoor scene through the first bidirectional inverter in an off-grid state; the method comprises the steps of detecting that a scene where an energy storage system is located is an indoor scene, and controlling a first parallel energy storage system to output energy to energy consumption equipment in the indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
According to an aspect of the embodiment of the present invention, there is also provided an energy supply device of an energy storage system. The apparatus may include: the first detection unit is used for detecting that a scene where the energy storage system is located is an outdoor scene, and controlling the first off-grid energy storage system to output energy to energy consumption equipment in the outdoor scene through the first bidirectional inverter in an off-grid state; the second detection unit is used for detecting that the scene where the energy storage system is located is an indoor scene, and controlling the first parallel energy storage system to output energy to energy consumption equipment in the indoor scene through the second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
According to an aspect of the embodiment of the present invention, there is further provided a computer readable storage medium, where the computer readable storage medium includes a stored program, and when the program runs, the device where the storage medium is controlled to execute the energy supply method of the energy storage system of the embodiment of the present invention.
According to an aspect of the embodiment of the present invention, there is further provided a processor, where the processor is configured to execute a program, where the program executes the energy supply method of the energy storage system according to the embodiment of the present invention.
In an embodiment of the present application, an energy storage system includes: the first off-grid energy storage system and the first parallel grid energy storage system allow mutual switching, and when the scene where the energy storage system is detected to be an outdoor scene, the first off-grid energy storage system is controlled to output energy to energy consumption equipment in the outdoor scene through the first bidirectional inverter in an off-grid state; when the scene where the energy storage system is detected to be an indoor scene, the first parallel energy storage system is controlled to output energy to energy consumption equipment in the indoor scene through the second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel. In other words, in the embodiment of the application, the first off-grid energy storage system and the first parallel grid energy storage system are integrated in one energy storage system, two energy storage products are not needed to be used, so that the manufacturing cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of an energy storage system according to an embodiment of the present application;
FIG. 2 is a block diagram of a hardware architecture of a computer terminal (or electronic device) for implementing a method of powering an energy storage device according to an embodiment of the application;
FIG. 3 is a flow chart of a method of powering an energy storage system according to an embodiment of the application;
FIG. 4 is a schematic diagram of another energy storage system according to an embodiment of the present application;
fig. 5 is a schematic diagram of an energy supply device of an energy storage system according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For a better understanding of embodiments of the present application, some of the terms or expressions which appear in describing the embodiments of the present application are applicable to the following explanation:
a Direct Current (DC) converter (DC/DC) for converting a fixed DC voltage into a variable DC voltage, also called a DC chopper;
An energy storage converter (Power Conversion System, abbreviated as PCS) for controlling the charging and discharging processes of the storage battery to perform AC/DC conversion, and directly supplying power to the AC load under the condition of no power grid;
a battery management system (Battery Management System, abbreviated as BMS) for intelligently managing and maintaining each battery cell, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery, and monitoring the state of the battery;
a universal serial bus (Universal Serial Bus, simply referred to as USB) provides an extensible and hot-pluggable plug-and-play serial interface.
Example 1
According to an embodiment of the invention, an energy storage system is provided.
Fig. 1 is a schematic diagram of an energy storage system according to an embodiment of the present invention. As shown in fig. 1, the energy storage system 100 may include: the first off-grid energy storage system 101 and the first parallel grid energy storage system 102 allow for switching between each other.
The first off-grid energy storage system 101 is configured to output energy to energy-consuming devices in an outdoor scene through the first bidirectional inverter in an off-grid state.
In this embodiment, the first off-grid energy storage system 101 corresponds to a portable mobile power source, and can be used in an off-grid state; the off-line state is used for indicating an off-line state; the first bi-directional inverter is used for converting direct current into alternating current. The first off-grid energy storage system is connected with the first bidirectional inverter. When the energy storage system 100 is in an outdoor scene, the energy storage system 100 is in an off-grid state, in which case, a first off-grid energy storage system 101 in the energy storage system is controlled to be connected with a first bidirectional inverter, and energy is output to energy consumption equipment in the outdoor scene, wherein the output energy is used for indicating electric quantity and power output by the first off-grid energy storage system 101.
For example, since the first off-grid energy storage system 101 outputs dc power, when the first off-grid energy storage system 101 outputs energy to the energy consumption device in the outdoor scene in the off-grid state, the dc power output by the first off-grid energy storage system 101 can be converted into ac power by the first bidirectional inverter to supply power to the energy consumption device.
Alternatively, the outdoor scene may include a park, subway, airport, etc., and the energy consumption device in the outdoor scene may include a mobile phone, a tablet, a bluetooth sound, etc.
In this embodiment, the energy storage system includes a first off-grid energy storage system, which is equivalent to a portable mobile power source, and may be used to output energy for energy-consuming devices in an outdoor scene in an off-grid state, so as to meet a charging requirement of the energy-consuming devices in the outdoor scene.
The first parallel network energy storage system 102 is connected with the first off-network energy storage system 101 and is used for outputting energy to energy consumption equipment in an indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
In this embodiment, the first parallel grid energy storage system 102 corresponds to a household energy storage product for outputting energy to energy consuming devices in an indoor scenario; the second bi-directional inverter has the same function as the first bi-directional inverter and is used for converting direct current into alternating current. The first parallel grid energy storage system 102 is connected to a second bi-directional inverter. When the energy storage system 100 is in an indoor scenario, the first parallel grid energy storage system 102 in the energy storage system may be controlled to be connected with the second bidirectional inverter, and energy is output to energy consuming devices in the indoor scenario.
Alternatively, the indoor scene may include a classroom, a supermarket, a conference room, and the like, and the energy consumption device in the indoor scene may include a household appliance, a display screen, and the like.
In this embodiment, the first parallel energy storage system in the energy storage system is equivalent to a household energy storage product, and can output energy to the energy consumption equipment in the indoor scene when the energy storage system is in the indoor scene, so as to meet the charging requirement of the energy consumption equipment in the indoor scene.
In this embodiment, the energy storage system includes a first off-grid energy storage system and a first parallel grid energy storage system, in an outdoor scene, energy can be output for energy-consuming equipment in the outdoor scene through the first off-grid energy storage system, in an indoor scene, energy can be output for energy-consuming equipment in the indoor scene through the first parallel grid energy storage system, not only can energy requirements of the energy-consuming equipment in the outdoor scene be met, but also energy requirements of the energy-consuming equipment in the indoor scene can be met, a power supply mode of the energy storage system is expanded, a technical effect of enriching functions of energy storage products is achieved, and a technical problem of single function of the energy storage system is solved.
Optionally, in order to double the energy output by the energy storage systems, when providing energy to energy consuming devices in an outdoor scene, the energy can be doubled by using a first off-grid energy storage system of the two energy storage systems in parallel; similarly, when energy is provided for energy-consuming equipment in an indoor scene, the energy-consuming equipment can also be provided with doubled energy by using a first parallel network energy storage system of the two energy storage systems in parallel, wherein the energy output by the energy storage systems is used for indicating the electric quantity and the power output by the energy storage systems. Of course, according to actual needs, more energy storage systems may be connected in parallel when supplying power to the energy consumption device, so as to provide more energy, which is only an exemplary example and not limiting the number of energy storage systems.
In this embodiment, in order to meet the energy demand of more energy-consuming devices, the output energy can be doubled by connecting a plurality of energy storage systems in parallel, the operation is simpler, the energy output by the energy storage systems can be doubled rapidly by connecting the energy storage systems in parallel, the use demand of users is met, and the technical effect of expanding the energy supply mode of the energy storage systems is achieved.
Optionally, the first off-grid energy storage system supports solar charging, for example, the DC5521 output interface may output electric energy to charge a mobile phone, a tablet, or the like. The first off-grid energy storage system also supports direct charging of the power grid, and provides alternating current output for an alternating current load through parallel port charging. The first parallel grid energy storage system supports light Fu Banguang volt charging.
In this embodiment, the first off-grid energy storage system supports both solar charging and direct charging of the grid, and meets the charging requirements of the energy storage system in different application scenarios.
In this embodiment, the first off-grid energy storage system and the first off-grid energy storage system are integrated in one energy storage system, two energy storage products do not need to be manufactured, manufacturing cost is saved, in addition, the first off-grid energy storage system is connected with the first bidirectional inverter, the first off-grid energy storage system is connected with the second bidirectional inverter, the first off-grid energy storage system is connected with the first off-grid energy storage system in parallel, when the situation that the energy storage system is located is detected to be an outdoor situation, energy can be output through the first off-grid energy storage system for energy consumption equipment in the outdoor situation, when the situation that the energy storage system is located is detected to be an indoor situation, energy can be output through the first off-grid energy storage system for energy consumption equipment in the indoor situation, application situations of the energy storage system are expanded, power supply modes of the energy storage system are enriched, and the energy storage system is convenient for users to use, so that the technical problem of single function of the energy storage system is solved, and the technical effect of enriching functions of the energy storage system is achieved.
The energy storage system described above for this embodiment is further described below.
As an alternative embodiment, the second bi-directional inverter and the first bi-directional inverter are connected in parallel in phase.
In this embodiment, as can be seen from the foregoing description, the first off-grid energy storage system is connected to the first bidirectional inverter, the first parallel grid energy storage system is connected to the second bidirectional inverter, and the second bidirectional inverter and the first bidirectional inverter are connected in parallel according to the same phase, in which case, when power is supplied to the energy consumption device in the outdoor scene, the first bidirectional inverter may be controlled to be turned on, and the second bidirectional inverter is turned off, so that the first off-grid energy storage system in the energy storage system supplies power to the energy consumption device in the outdoor scene; when power is supplied to the energy consumption equipment in the indoor scene, the second bidirectional inverter can be controlled to be switched on, and the first bidirectional inverter is switched off, so that the first parallel network energy storage system in the energy storage system supplies power to the energy consumption equipment in the indoor scene.
In this embodiment, the first bidirectional inverter is connected in parallel with the second bidirectional inverter, and the first off-grid energy storage system is connected with the first bidirectional inverter, and the first parallel grid energy storage system is connected with the second bidirectional inverter, based on which, when there is an outdoor power supply demand, the first bidirectional inverter may be controlled to be turned on, so that the first off-grid energy storage system supplies power to energy consuming devices in an outdoor scene. When the indoor power supply requirement exists, the second bidirectional inverter can be controlled to be connected, so that the first parallel network energy storage system supplies power to energy consumption equipment in an indoor scene. That is, the energy consumption equipment in outdoor scenes or the energy consumption equipment in indoor scenes can be powered by controlling the first bidirectional inverter and the second bidirectional inverter, so that the energy consumption equipment is convenient for users to use, the user experience is improved, the functions of the energy storage system are enriched, and the technical problem of single function of the energy storage system is solved.
In this embodiment, when the first parallel energy storage system outputs energy to the energy consumption device in the indoor scene through the second bidirectional inverter, the energy output may be performed through an output port in the energy storage system. Which is further described below.
As an alternative embodiment, the energy storage system further comprises: the first grid output port is connected between the first grid-connected energy storage system and the second grid-connected energy storage system and is used for transmitting energy output by the first grid-connected energy storage system to energy consumption equipment in an indoor scene, wherein the second grid-connected energy storage system is deployed in at least one target energy storage system connected with the energy storage systems and is used for outputting energy to the energy consumption equipment in the indoor scene through a third bidirectional inverter.
In this embodiment, as can be seen from the foregoing description, the energy storage system includes a first parallel-network energy storage system and a first off-network energy storage system, and the at least one target energy storage system may include a second parallel-network energy storage system and a second off-network energy storage system, where the first parallel-network energy storage system is configured to output energy to the energy consumption device in the indoor scene through the second bidirectional inverter, and the second parallel-network energy storage system is configured to output energy to the energy consumption device in the indoor scene through the third bidirectional inverter. The energy storage system is connected with the at least one target energy storage system, the energy storage system further comprises a first power grid output port, and the first power grid output port is connected between the first parallel grid energy storage system and the second parallel grid energy storage system and used for transmitting the first parallel grid energy storage system to output energy to energy consumption equipment in an indoor scene.
In this embodiment, when there are too many energy consuming devices in the indoor scenario, the energy output only through the first grid-connected energy storage system in the energy storage system may not meet the energy demand of the energy consuming devices in the indoor scenario, in which case the energy may also be output to the energy consuming devices in the indoor scenario through the second grid-connected energy storage system in the target energy storage system. Which is further described below.
As an alternative embodiment, the first grid output port is connected to a second grid output port in the target energy storage system, where the second grid output port is used to transmit energy output by the second grid-connected energy storage system to the energy consumption device in the indoor scenario.
In this embodiment, the first grid output port may also be connected to a second grid output port in the target energy storage system, where the connection between the first grid output port and the second grid output port may be parallel or series. Based on this, when the energy storage system is in an indoor scene, and the connection mode between the first power grid output port and the second power grid output port is parallel connection, the first parallel grid energy storage system and the second parallel grid energy storage system are also parallel connection, in this case, the output energy of the first parallel grid energy storage system and the output energy of the second parallel grid energy storage system are single-live wire output, for example, the first parallel grid energy storage system and the second parallel grid energy storage system respectively perform 120V alternating current output through the first power grid output port and the second power grid output port, so that the energy output of the energy storage system in the indoor scene is doubled, and the power supply of energy consumption equipment requiring single-live wire support in the indoor scene is satisfied, for example, some indoor scenes using single-phase electricity are provided. The output energy of the energy storage system is used for indicating the electric quantity and the power output by the energy storage system.
Optionally, when the energy storage system is in the indoor scenario, the connection mode between the first power grid output port and the second power grid output port is a series connection, and the first parallel grid energy storage system and the second parallel grid energy storage system are also connected in series, in this case, the output energy of the first parallel grid energy storage system and the output energy of the second parallel grid energy storage system are dual-live wire output, for example, the first parallel grid energy storage system and the second parallel grid energy storage system perform 240V alternating current output through the first power grid output port and the second power grid output port, so that the output energy of the energy storage system in the indoor scenario is doubled, and power supply of energy consumption equipment which needs dual-live wire support in the indoor scenario is met, for example, some indoor scenarios using dual-phase electricity are provided.
In this embodiment, the first parallel energy storage system in the energy storage system and the second parallel energy storage system in the target energy storage system may be connected in parallel to meet the power supply of the energy consumption device requiring single live wire support in the indoor scenario, or the first parallel energy storage system and the second parallel energy storage system may be connected in series to meet the power supply of the energy consumption device requiring double live wire support in the indoor scenario, that is, the connection mode between the first parallel energy storage system and the second parallel energy storage system may be flexibly adjusted according to the charging requirement of the energy consumption device in the indoor scenario, so as to meet the charging requirement of different energy consumption devices in the indoor scenario, and achieve the technical effect of enriching the functions of the energy storage system.
In this embodiment, the first grid output port and the second grid output port may be based on a single live wire or a double live wire, so that the first grid-connected energy storage system and the second grid-connected energy storage system are connected in parallel or in series. Which is further described below.
As an optional implementation manner, the first power grid output port and the second power grid output port are used for enabling the first parallel grid energy storage system and the second parallel grid energy storage system to be connected in parallel based on a single live wire, or the first power grid output port and the second power grid output port are used for enabling the first parallel grid energy storage system and the second parallel grid energy storage system to be connected in series based on a double live wire.
In this embodiment, as can be seen from the foregoing description, the connection manner between the first grid output port and the second grid output port may be parallel connection or series connection, where the first grid output port is used for transmitting energy output by the first grid-connected energy storage system to the energy consumption device in the indoor scenario, and the second grid output port is used for transmitting energy output by the second grid-connected energy storage system to the energy consumption device in the indoor scenario, based on this, when the first grid output port and the second grid output port are connected in parallel, the first grid-connected energy storage system and the second grid-connected energy storage system may also be connected in parallel based on a single live wire; when the first power grid output port and the second power grid output port are connected in series, the first parallel grid energy storage system and the second parallel grid energy storage system can be connected in series based on double fire wires, wherein 120V alternating current can be output by a single fire wire, and 240V alternating current can be output by the double fire wires.
In the embodiment, the first grid output port and the second grid output port can be connected in parallel with the first grid-connected energy storage system and the second grid-connected energy storage system based on a single live wire, so that the energy consumption equipment needing single live wire support is charged; the first parallel network energy storage system and the second parallel network energy storage system can be connected in series based on the double fire wires so as to meet the requirement of charging energy consumption equipment supported by the double fire wires, expand the application scene of the energy storage system, enrich the functions of the energy storage system and solve the technical problem of single function of the energy storage system.
In this embodiment, when the first off-grid energy storage system outputs energy to the energy consumption device in the outdoor scene through the first bidirectional inverter, the energy can be output through the first parallel machine interface in the energy storage system. Which is further described below.
As an alternative embodiment, the energy storage system further comprises: the first parallel operation interface is connected between the first off-grid energy storage system and the second off-grid energy storage system and used for transmitting energy output by the first off-grid energy storage system to energy consumption equipment in an outdoor scene, wherein the second off-grid energy storage system is deployed in at least one target energy storage system connected with the energy storage system and used for outputting energy to the energy consumption equipment in the outdoor scene through the fourth bidirectional inverter in an off-grid state.
In this embodiment, as can be seen from the foregoing description, the energy storage system includes a first off-grid energy storage system, and the target energy storage system includes a second off-grid energy storage system, where the first off-grid energy storage system and the second off-grid energy storage system can both be independently brought into the outdoor scene to output energy for the energy consumption device in the outdoor scene. The energy storage system comprises a first parallel machine interface, and the first parallel machine interface is connected between the first off-grid energy storage system and the second off-grid energy storage system and is used for transmitting energy output by the first off-grid energy storage system to energy consumption equipment in an outdoor scene.
In this embodiment, when there are too many energy consuming devices in the outdoor scenario, the energy output only through the first off-grid energy storage system in the energy storage system may not meet the energy demand of the energy consuming devices in the outdoor scenario, in which case the energy may also be output to the energy consuming devices in the outdoor scenario through the second off-grid energy storage system in the target energy storage system. Which is further described below.
As an alternative implementation manner, the first parallel-machine interface is connected with a second parallel-machine interface in the target energy storage system, and the second parallel-machine interface is used for transmitting energy output by the second off-grid energy storage system to energy consumption equipment in an outdoor scene.
In this embodiment, the first parallel connection interface is connected to the second parallel connection interface in the target energy storage system, where the connection manner between the first parallel connection interface and the second parallel connection interface may be parallel connection or series parallel connection, based on this, when the energy storage system is in an outdoor scene, and the connection manner between the first parallel connection interface and the second parallel connection interface is parallel connection, the first off-grid energy storage system and the second off-grid energy storage system are also parallel connection, where the first off-grid energy storage system and the second off-grid energy storage system output 120V ac through the first parallel connection interface and the second parallel connection interface, respectively, so that the energy storage system outputs energy twice in the outdoor scene.
Optionally, when the energy storage system is in an outdoor scene, the connection mode between the first parallel connection interface and the second parallel connection interface is a series parallel connection, and the first off-grid energy storage system and the second off-grid energy storage system are also connected in series, so that the first off-grid energy storage system and the second off-grid energy storage system can output 240V alternating current, and the electric quantity and the power of the output of the energy storage system in the outdoor scene are doubled.
In this embodiment, the first off-grid energy storage system in the energy storage system and the second off-grid energy storage system in the at least one target energy storage system may be connected in parallel or in series, and through different connection modes, the first off-grid energy storage system and the second off-grid energy storage system perform single-live wire energy output or double-live wire energy output through the first parallel interface and the second parallel interface respectively, so as to meet power supply requirements of different energy consumption devices, and achieve technical effects of enriching functions of the energy storage systems.
In this embodiment, the first parallel connection interface and the second parallel connection interface may be based on a single live wire or a double live wire, so that the first off-grid energy storage system and the second off-grid energy storage system are connected in parallel or in series. Which is further described below.
As an optional implementation manner, the first parallel connection interface and the second parallel connection interface are used for enabling the first off-grid energy storage system and the second off-grid energy storage system to be connected in parallel based on a single live wire, or the first parallel connection interface and the second parallel connection interface are used for enabling the first off-grid energy storage system and the second off-grid energy storage system to be connected in series based on a double live wire.
In this embodiment, as can be seen from the description above, the connection manner between the first parallel connection interface and the second parallel connection interface may be parallel connection or series parallel connection, where the first parallel connection interface is used for transmitting energy output by the first off-grid energy storage system to the energy consumption device in the outdoor scene, and the second parallel connection interface is used for transmitting energy output by the second off-grid energy storage system to the energy consumption device in the outdoor scene, based on this, when the first parallel connection interface and the second parallel connection interface are parallel connection, the first off-grid energy storage system and the second off-grid energy storage system may also be parallel connection based on a single live wire; when the first parallel connection interface and the second parallel connection interface are connected in series, the first off-grid energy storage system and the second off-grid energy storage system can be connected in series based on double fire wires, wherein a single fire wire can output 120V alternating current, and the double fire wires can output 240V alternating current.
In this embodiment, the energy storage system may not only output energy to the outside, but also receive input energy, and the energy input manner of the energy storage system is further described below.
As an alternative embodiment, the energy storage system further comprises: the first power grid input port is connected with the first grid energy storage system and is used for inputting energy to the first grid energy storage system; and/or a second power grid input port is connected with the first off-grid energy storage system and used for inputting energy to the first off-grid energy storage system.
In this embodiment, the first parallel network energy storage system in the energy storage system not only can output energy to the energy consumption equipment in the indoor scene, but also can receive input energy to maintain the full power state, and similarly, the first off-network energy storage system in the energy storage system not only can output energy to the energy consumption equipment in the outdoor scene, but also can receive input energy to maintain the full power state.
For example, the energy storage system may include a first grid input port and a second grid input port, where the first grid input port is connected to the first grid energy storage system for inputting energy to the first grid energy storage system. The second power grid input port is used for being connected with the first off-grid energy storage system and inputting energy to the first off-grid energy storage system, wherein the energy input to the first grid energy storage system and/or the first off-grid energy storage system can be alternating current.
In this embodiment, the energy storage system further includes a first power grid output port and/or a second power grid input port, so as to input energy to the first parallel grid energy storage system and the first off-grid energy storage system in the energy storage system respectively, so that the first parallel grid energy storage system and the first off-grid energy storage system in the energy storage system maintain a full-power state, meet the power supply requirement of energy consumption equipment, and achieve the technical effect of enriching the functions of the energy storage system.
In this embodiment, since the energy storage system includes both the first off-grid energy storage system and the first parallel grid energy storage system, when designing the energy storage product, the connection mode between the first off-grid energy storage system and the second off-grid energy storage system has a great influence on the overall size of the energy storage product. The connection mode of the first parallel network energy storage system and the first off-network energy storage system in the energy storage system is further described below.
As an alternative embodiment, the first parallel network energy storage system and the first off-network energy storage system are stacked and plugged through a connector.
In this embodiment, the first parallel network energy storage system and the first off-network energy storage system in the energy storage system may be connected in a stacked and opposite manner, so as to ensure reliable connection between the energy storage systems, and facilitate a user to use different energy storage systems in combination.
For example, the first off-grid energy storage system in the energy storage system may be stacked above the first parallel grid energy storage system, or the first parallel grid energy storage system may be stacked above the first off-grid energy storage system, where the stacking manner is not specifically limited, and in the actual use process, the stacking manner may be designed based on the dimensions of the first off-grid energy storage system and the first parallel grid energy storage system, so as to facilitate use by a user. It should be noted that the stacking opposite-plug connection manner is only a connection manner between the first off-grid energy storage system and the first parallel-grid energy storage system provided by the embodiment of the present application, and the connection manner between the first off-grid energy storage system and the first parallel-grid energy storage system is not limited herein.
Optionally, the first off-grid energy storage system and the first parallel grid energy storage system may be stacked and plugged through a connector, where the connector includes a dust cap of a plug and a socket, and is used for dust protection after the first off-grid energy storage system and the second off-grid energy storage system are separated.
Optionally, the first grid-connected energy storage system and the first off-grid energy storage system in the energy storage system may be further connected with a second grid-connected energy storage system and a second off-grid energy storage system in the at least one target energy storage system in a stacked and opposite manner, so as to increase the output energy of the energy storage system, where the stacked and opposite connection may be a stacked connection, for example, the at least one target energy storage system may be stacked above the energy storage system, or the energy storage system may be stacked above the at least one target energy storage system, which is only an exemplary embodiment herein, and the stacking manner is not specifically limited.
The energy storage system comprises two energy storage systems, namely a first off-grid energy storage system and a first parallel grid energy storage system, wherein the first off-grid energy storage system is connected with a first bidirectional inverter, the first parallel grid energy storage system is connected with a second bidirectional inverter, and the first off-grid energy storage system is connected with the first parallel grid energy storage system in parallel.
Example 2
According to an embodiment of the present application, an embodiment of a method for supplying energy to an energy storage system is provided, where the method for supplying energy to an energy storage system of the embodiment may be performed by the energy storage system described above. It should be noted that, embodiments of the energy supply method of the energy storage system provided by the embodiments of the present application may be implemented in a mobile terminal, a computer terminal, or a similar computing device. Fig. 2 shows a block diagram of the hardware architecture of a computer terminal (or electronic device) for implementing the energy-storage system's energy-supplying method. As shown in fig. 2, the computer terminal 20 (or electronic device 20) may include one or more (shown as 202a, 202b, … …,202 n) processors (which may include, but are not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA), a memory 204 for storing data, and a transmission module 206 for communication functions. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial Bus (USB) port (which may be included as one of the ports of the I/O interface), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 2 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 20 may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.
The memory 204 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the methods in the embodiments of the present application, and the processor executes the software programs and modules stored in the memory 204, thereby performing various functional applications and data processing, that is, implementing the energy storage system energy supply method described above. Memory 204 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 204 may further include memory located remotely from the processor, which may be connected to the computer terminal 20 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission module 206 is used to receive or transmit data via a network. The specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 20. In one example, the transmission device 206 includes a network adapter (Network Interface Controller, simply referred to as NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 206 may be a Radio Frequency (RF) module, which is used to communicate with the internet wirelessly.
The display may be, for example, a touch screen type liquid crystal display (Liquid Crystal Display, simply LCD) that may enable a user to interact with a user interface of the computer terminal 20 (or electronic device).
It should be noted here that, in some alternative embodiments, the computer device (or the electronic device) shown in fig. 2 described above may include hardware elements (including circuits), software elements (including computer code stored on a computer readable medium), or a combination of both hardware elements and software elements. It should be noted that fig. 2 is only one example of a specific example, and is intended to illustrate the types of components that may be present in the computer device (or electronic device) described above.
In the above-described operating environment, according to embodiments of the present invention, there is provided an embodiment of a method for powering an energy storage system, it being noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order other than that illustrated herein.
In one possible implementation, energy is typically output for energy consuming devices in outdoor scenarios by a portable mobile power supply in outdoor scenarios, but the portable mobile power supply is a stand alone product that does not provide more energy support for consumer grid-connected energy storage devices. In addition, energy is usually output for the energy consumption equipment in the indoor scene through the household energy storage product in the indoor scene, but because the vast majority of household energy storage products are of sheet metal structures, the volume is larger, the manufacturing cost is higher, and the user requirements can not be well met. That is, the current outdoor portable mobile power supply and the household energy storage products are independent products, no combined product is provided for users under the conditions of low cost and high income, the users can only purchase two different energy storage products to meet different application scenes, and the functions of the energy storage products are single.
The embodiment of the invention provides an energy supply method of an energy storage system, which integrates a first off-grid energy storage system and a first parallel grid energy storage system into one energy storage product, wherein the first off-grid energy storage system is equivalent to a portable outdoor mobile power supply, the first parallel grid energy storage system is equivalent to a household energy storage product, when the energy storage system is used by a user, the cost of the two energy storage products is lower, the energy requirements of energy consumption equipment in an outdoor scene and an indoor scene can be met through one energy storage product, the use experience of the user is improved, the functions of the energy storage product are enriched, and the technical problem that the functions of the energy storage product are single is solved.
Fig. 3 is a flow chart of a method of powering an energy storage system according to an embodiment of the invention. As shown in fig. 3, the method may include the steps of:
step 301, detecting that a scene where the energy storage system is located is an outdoor scene, and controlling the first off-grid energy storage system to output energy to energy consumption equipment in the outdoor scene through the first bidirectional inverter in an off-grid state.
In the technical scheme provided in the step S301 of the present invention, the first off-grid energy storage system in the energy storage system and the first parallel-grid energy storage system in the energy storage system may be switched. For example, when it is detected that the scene in which the energy storage system is located is an outdoor scene, the first off-grid energy storage system may be controlled to output energy to energy-consuming devices in the outdoor scene through the first bidirectional inverter in an off-grid state.
In this embodiment, the first off-grid energy storage system may be a portable mobile power source, and the first parallel grid energy storage system may be a consumer energy storage product. The energy storage system further comprises a first bidirectional inverter and a second bidirectional inverter, wherein the first off-grid energy storage system outputs energy to energy consumption equipment in an outdoor scene through the first bidirectional inverter, and the first parallel grid energy storage system outputs energy to the energy consumption equipment in an indoor scene through the connection of the second bidirectional inverter. The first bi-directional inverter may be an off-grid bi-directional inverter and the second bi-directional inverter may be a grid-connected bi-directional inverter. When the scene where the energy storage system is located is detected to be an outdoor scene, the first bidirectional inverter can be controlled to be connected, so that the first off-grid energy storage system in the energy storage system provides energy for energy consumption equipment in the outdoor scene.
Alternatively, the outdoor scene may include a park, subway, airport, etc., and the energy consumption device in the outdoor scene may include a mobile phone, a tablet, a bluetooth sound, etc.
In this embodiment, the first off-grid energy storage system in the energy storage system can be a portable mobile power supply, and can be used for outputting energy for energy-consuming equipment in an outdoor scene in an off-grid state, so that the requirement of providing energy for the energy-consuming equipment in the outdoor scene is met, the functions of the energy storage system are enriched, and the technical problem of single function of the energy storage system is solved.
Step S302, detecting that a scene where the energy storage system is located is an indoor scene, and controlling the first parallel energy storage system to output energy to energy consumption equipment in the indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
In the technical scheme provided in the step S302, as known from the description above, the first parallel energy storage system in the energy storage system is connected with the second bidirectional inverter, so as to output energy to the energy-consuming device in the indoor scene, based on the energy output from the first parallel energy storage system to the energy-consuming device in the indoor scene through the second bidirectional inverter, when the scene where the energy storage system is detected to be the indoor scene can be controlled to be switched on.
Alternatively, the indoor scene may include a classroom, a supermarket, a conference room, and the like, and the energy consumption device in the indoor scene may include a household appliance, a display screen, and the like.
In this embodiment, the second bidirectional inverter is connected in parallel with the first bidirectional inverter, based on which, when the energy consumption device in the indoor scene has a charging requirement, the second bidirectional inverter can be controlled to be turned on, so that the first parallel network energy storage system outputs energy to the energy consumption device in the indoor scene through the second bidirectional inverter, the operation is simpler, the user experience is improved, and the energy requirements of the energy consumption device in the outdoor scene and the indoor scene can be flexibly met.
According to the application, the energy storage system comprises two energy storage systems, namely a first off-grid energy storage system and a first parallel grid energy storage system, wherein the first off-grid energy storage system is connected with a first bidirectional inverter, the first parallel grid energy storage system is connected with a second bidirectional inverter, and the first off-grid energy storage system is connected with the first parallel grid energy storage system in parallel, so that when an outdoor scene outside the scene where the energy storage system is detected, energy can be output for energy consumption equipment in the outdoor scene through the first off-grid energy storage system, when the scene where the energy storage system is detected as an indoor scene, energy can be output for energy consumption equipment in the indoor scene through the first parallel grid energy storage system, the application scene of the energy storage system is expanded, the power supply mode of the energy storage system is enriched, the use of a user is facilitated, the technical problem of single function of the energy storage system is solved, and the technical effect of enriching the functions of the energy storage system is achieved.
The above-described method of this embodiment is further described below.
As an alternative embodiment, the energy storage system further includes: in response to the energy storage system being in a fault state, the energy storage system switches to at least one target energy storage system in a normal state, wherein the target energy storage system comprises: the second off-grid energy storage system and the second grid-connected energy storage system are mutually switched, the second grid-connected energy storage system is used for outputting energy to energy consumption equipment in an indoor scene through a third bidirectional inverter, the second off-grid energy storage system is used for outputting energy to the energy consumption equipment in an outdoor scene through a fourth bidirectional inverter in an off-grid state, and the third bidirectional inverter and the fourth bidirectional inverter are connected in parallel.
In this embodiment, a plurality of target energy storage systems may be further provided, where the plurality of target energy storage systems have the same function as the energy storage system, based on which, when the energy storage system is in a fault state, it is indicated that the energy storage device cannot provide energy for the energy consumption device any more, in which case the energy storage system may be switched to at least one target energy storage system in a normal state, where the target energy storage system includes: the second off-grid energy storage system and the second grid-connected energy storage system can be mutually switched to supply power for energy consumption equipment in different scenes when the energy consumption equipment is in different scenes. The target energy storage system can further comprise a third bidirectional inverter and a fourth bidirectional inverter, wherein the third bidirectional inverter is connected with the second grid-connected energy storage system, and the fourth bidirectional inverter is connected with the second off-grid energy storage system, so that when the target energy storage system is in an indoor scene, the second grid-connected energy storage system can output energy to energy consumption equipment in the indoor scene through the third bidirectional inverter; when the target energy storage system is in an outdoor scene, the second off-grid energy storage system can output energy to energy consumption equipment in the outdoor scene through the fourth bidirectional inverter.
Optionally, because the third bidirectional inverter is connected in parallel with the fourth bidirectional inverter, based on the third bidirectional inverter, when the scene where the energy storage system is detected to be an indoor scene, the second grid-connected energy storage system is controlled to output energy to energy consumption equipment in the indoor scene through the third bidirectional inverter; when the scene where the target energy storage system is detected to be an outdoor scene, the second off-grid energy storage system can be controlled to output energy to energy consumption equipment in the outdoor scene through the fourth bidirectional inverter in the off-grid state.
In this embodiment, a plurality of target energy storage systems are provided, and the structures and functions of the target energy storage systems are the same as those of the energy storage systems, so that after the energy storage systems fail, the energy storage systems can be seamlessly switched to at least one target energy storage system in a normal state, so as to meet the power supply requirement, and solve the technical problem that the energy storage systems cannot output energy for energy consumption equipment in a failure state.
In this embodiment, when there are too many energy consuming devices in the indoor scenario, the energy output is performed by one first parallel energy storage system, which may not meet the energy demand of the energy consuming devices in the indoor scenario, and based on this, the energy demand of the energy consuming devices in the indoor scenario may be met by connecting the parallel or series connected energy storage systems of other energy storage systems. The process of connecting a first grid-tied energy storage system of the energy storage systems to a second grid-tied energy storage system of the at least one target energy storage system is further described below.
As an alternative embodiment, the energy storage system further includes: and connecting the first grid-connected energy storage system in the energy storage system with the second grid-connected energy storage system in the at least one target energy storage system in parallel, or connecting the first grid-connected energy storage system in the energy storage system with the second grid-connected energy storage system in the at least one target energy storage system in series.
In this embodiment, if more energy consumption devices are in the indoor scenario, when the energy output by the first parallel network energy storage system in the energy storage system cannot meet the charging requirement of the energy consumption devices in the indoor scenario, the first parallel network energy storage system in the energy storage system and the second parallel network energy storage system in the at least one target energy storage system may be connected in parallel, so as to perform single live wire output, and meet the charging requirement of the energy consumption devices requiring single live wire support in the indoor scenario.
Optionally, if the indoor scene includes energy consumption equipment needing double-fire-wire support, the first parallel grid energy storage system in the energy storage system and the second parallel grid energy storage system in the at least one target energy storage system can be connected in series to perform double-fire-wire output, so that the charging requirement of the energy consumption equipment needing double-fire-wire support in the indoor scene is met.
In this embodiment, the first parallel network energy storage system in the energy storage system and the second parallel network energy storage system in the at least one target energy storage system may be connected in parallel or in series, so that the energy output by the energy storage system is doubled, and the charging requirement of the energy consumption device requiring single fire wire support or the charging requirement of the energy consumption device requiring double fire wires support in the indoor scene is met, so that the power supply mode of the energy storage system is expanded, and the functions of the energy storage system are enriched.
In this embodiment, when there are too many energy consuming devices in the outdoor scenario, the energy output is performed by one first off-grid energy storage system, and the energy requirement of the energy consuming device in the outdoor scenario may not be satisfied, based on which the energy requirement of the energy consuming device in the outdoor scenario may be satisfied by connecting the off-grid energy storage systems in other energy storage systems in parallel or in series. The process of a first off-grid energy storage system of the energy storage systems connecting to a second off-grid energy storage system of the at least one target energy storage system is further described below.
As an alternative embodiment, the method for functioning the energy storage system further comprises: and connecting the first off-grid energy storage system in the energy storage system with the second off-grid energy storage system in the at least one target energy storage system in parallel, or connecting the first off-grid energy storage system in the energy storage system with the second off-grid energy storage system in the at least one target energy storage system in series.
In this embodiment, if more energy consumption devices are in the outdoor scenario, when the energy output by the first off-grid energy storage system in the energy storage system cannot meet the charging requirement of the energy consumption devices in the outdoor scenario, the first off-grid energy storage system in the energy storage system and the second off-grid energy storage system in the at least one target energy storage system may be connected in parallel, so as to perform single-live-wire output, and meet the charging requirement of the energy consumption devices requiring single-live-wire support in the outdoor scenario.
Optionally, if the outdoor scene includes energy consumption equipment that needs to be supported by the double fire wires, the first off-grid energy storage system in the energy storage system and the second off-grid energy storage system in the at least one target energy storage system may be connected in series, so as to perform double fire wire output, and meet the charging requirement of the energy consumption equipment that needs to be supported by the double fire wires in the outdoor scene.
In this embodiment, the first off-grid energy storage system in the energy storage system and the second off-grid energy storage system in the at least one target energy storage system may be connected in parallel or in series, so that the energy output by the energy storage system is doubled, and the charging requirement of the energy consumption device requiring single-fire-wire support in an outdoor scene or the charging requirement of the energy consumption device requiring double-fire-wire support is met, so that the power supply mode of the energy storage system is expanded, and the functions of the energy storage system are enriched.
To implement the energy-supplying method of the energy-storing system, fig. 4 is a schematic diagram of another energy-storing system according to an embodiment of the present invention. As shown in fig. 4, the energy storage system 40 may include a first energy storage system 401 and a second energy storage system 402, where the first energy storage system 401 and the second energy storage system 402 may be connected by parallel or serial parallel.
The first energy storage system 401 may include a first off-grid energy storage system 4011 and a first parallel energy storage system 4012, where the first off-grid energy storage system 4011 and the first parallel energy storage system 4012 are connected in parallel. The first off-grid energy storage system 4011 includes a first bidirectional inverter 40111 and a first master control 40112, where when the first energy storage system 401 is detected to be in an outdoor scene, the first master control 40112 can control the first bidirectional inverter to be turned on, so that the first off-grid energy storage system 4011 outputs energy to energy consumption devices in the outdoor scene. The first master control 40112 includes mobile hotspot (Wireless Fidelity, abbreviated as WIFI) and/or Bluetooth (abbreviated as BL), screen, DC/DC and PCS communication.
The first off-grid energy storage system 4011 supports charging of a portable photovoltaic panel that can input energy to the first off-grid energy storage system 4011 through maximum power point tracking (Maximum Power Point Tracking, abbreviated as MPPT) of the first boost DC/DC. The first off-grid energy storage system 4011 may further receive energy input by the battery pack and the battery management system BMS through the first isolated bidirectional DC/DC. The first off-grid energy storage system supports a cigar lighter interface, a DC output interface, a universal USB interface and a wireless charging interface to output energy.
The first shunt energy storage system 4012 comprises a second master control 40121 and a second bi-directional inverter 40122, wherein when the first energy storage system 401 is detected to be in an indoor scenario, the second master control 40121 can control the second bi-directional inverter 40122 to be turned on, so that the first shunt energy storage system 4012 outputs energy to energy consuming devices in the indoor scenario. The second master control 40121 includes WIFI and/or BL, screen, DCDC, and PCS communications. The second main control 40121 and the first main control 40112 can communicate through a communication interface.
The first off-grid energy storage system 4012 supports photovoltaic panel charging, and the photovoltaic panel can input energy to the first off-grid energy storage system 4012 through MPPT of the second boost DCDC. The first parallel network energy storage system 4012 can also receive energy input by the battery pack and the battery management system BMS through the second isolated bidirectional direct current converter, and the first parallel network energy storage system supports 120V ac grid output, wherein single-live wire output or double-live wire output can be selected according to power supply requirements of equipment in indoor scenes.
The second energy storage system 402 has the same structure as the first energy storage system, and the second energy storage system 402 includes a second off-grid energy storage system 4021 and a second grid-connected energy storage system 4022, where the second off-grid energy storage system 4021 and the second grid-connected energy storage system 4022 are connected in parallel and parallel. The second off-grid energy storage system 4021 includes a third bidirectional inverter 40211 and a third main control 40212, where when the second energy storage system 402 is detected to be in an outdoor scene, the third main control 40212 may control the third bidirectional inverter 40211 to be turned on, so that the second off-grid energy storage system 4021 outputs energy to energy consumption devices in the outdoor scene. The third master 40212 includes WIFI and/or BL, a screen, DCDC, and PCS.
The second off-grid energy storage system 4021 supports charging of a portable photovoltaic panel, which may input energy to the second off-grid energy storage system 4021 via MPPT of the first boost DC/DC. The second off-grid energy storage system 4021 may also receive the energy input by the battery pack and the BMS through the third isolated bidirectional dc converter. The second off-grid energy storage system supports a cigar lighter interface, a DC output interface, a USB interface and a wireless charging interface to output energy.
The second grid-tied energy storage system 4022 includes a fourth master control 40221 and a fourth bi-directional inverter 40222, wherein, when the second energy storage system 402 is detected to be in an indoor scenario, the fourth master control 40221 can control the fourth bi-directional inverter 40222 to turn on such that the second grid-tied energy storage system 4022 outputs energy to energy consuming devices in the indoor scenario. The fourth master control 40221 includes WIFI and/or BL, a screen, DCDC, and PCS. The fourth master control 40221 and the third master control 40212 may communicate through a communication interface.
The second grid-connected energy storage system 4022 supports charging of a photovoltaic panel, which may input energy to the second off-grid energy storage system 4022 via MPPT of the second boost DCDC. The second grid-connected energy storage system 4022 may further receive energy input by the battery pack and the battery management system BMS through the fourth isolated bidirectional dc converter, where the second grid-connected energy storage system supports 120V ac grid output, and may select single-fire-wire output or double-fire-wire output according to a power supply requirement of a device in an indoor scenario.
The energy storage system comprises a first energy storage system and a second energy storage system, wherein the first energy storage system comprises a first off-grid energy storage system and a first parallel-grid energy storage system, and the second energy storage system comprises a second off-grid energy storage system and a second parallel-grid energy storage system, wherein the first off-grid energy storage system and the second off-grid energy storage system can be used independently to supply power to energy consumption equipment in an outdoor scene, or the first off-grid energy storage system and the second off-grid energy storage system can be connected in parallel or in series so that output energy is doubled. Similarly, the first parallel energy storage system and the second parallel energy storage system can also be used independently to supply power to energy consumption equipment in an indoor scene, or the first parallel energy storage system and the second parallel energy storage system can also be connected in parallel or in series so as to double the output energy. That is, in the energy storage system of the embodiment of the invention, the first off-grid energy storage system and the first parallel grid energy storage system are integrated in one energy storage system, two energy storage products are not needed, the cost is reduced, the first off-grid energy storage system can be connected with the off-grid energy storage systems in other energy storage systems for use, and the first parallel grid energy storage system can also be connected with the parallel grid energy storage systems in other energy storage systems for use, so that the output energy is doubled, the power supply mode of the energy storage system is expanded, the functions of the energy storage system are enriched, and the technical problem of single function of the energy storage system is solved.
Example 2
The embodiment of the invention also provides an energy supply device of the energy storage system. The energy supply device of the energy storage system of this embodiment may be used to perform the energy supply method of the energy storage system shown in fig. 1 according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of an energy supply device of an energy storage system according to an embodiment of the present invention. As shown in fig. 5, the energy supply device 500 of the energy storage system includes: a first detection unit 501 and a second detection unit 502.
The first detection unit 501 is configured to detect that a scene where the energy storage system is located is an outdoor scene, and control the first off-grid energy storage system to output energy to energy consumption equipment in the outdoor scene through the first bidirectional inverter in an off-grid state;
the second detection unit 502 is configured to detect that a scene where the energy storage system is located is an indoor scene, and control the first parallel energy storage system to output energy to energy consumption equipment in the indoor scene through the second bidirectional inverter, where the second bidirectional inverter is connected in parallel with the first bidirectional inverter.
Optionally, the apparatus 500 further includes: and a switching unit for switching the energy storage system to at least one target energy storage system in a normal state in response to the energy storage system being in a fault state, wherein the target energy storage system comprises: the second off-grid energy storage system and the second grid-connected energy storage system are mutually switched, the second grid-connected energy storage system is used for outputting energy to energy consumption equipment in an indoor scene through a third bidirectional inverter, the second off-grid energy storage system is used for outputting energy to the energy consumption equipment in an outdoor scene through a fourth bidirectional inverter in an off-grid state, and the third bidirectional inverter and the fourth bidirectional inverter are connected in parallel.
In the energy supply device of the energy storage system of the embodiment, the energy storage system comprises two energy storage systems, namely a first off-grid energy storage system and a first parallel grid energy storage system, the first off-grid energy storage system is connected with a first bidirectional inverter, the first parallel grid energy storage system is connected with a second bidirectional inverter in parallel, and based on the fact that the first off-grid energy storage system is connected with the first parallel grid energy storage system in parallel, when an outdoor scene outside the scene where the energy storage system is located is detected, energy can be output for energy consumption equipment in the outdoor scene through the first off-grid energy storage system, when the scene where the energy storage system is located is detected to be an indoor scene, energy can be output for energy consumption equipment in the indoor scene through the first parallel grid energy storage system, the application scene of the energy storage system is expanded, the power supply mode of the energy storage system is enriched, the energy storage system is convenient to use by a user, the technical problem of single function of the energy storage system is solved, and the technical effect of enriching functions of the energy storage system is achieved.
Example 3
According to an embodiment of the present invention, there is also provided a computer-readable storage medium. The computer readable storage medium comprises a stored program, wherein the program is used for controlling equipment where the storage medium is located to execute the energy supply method of the energy storage system according to the embodiment of the invention when running.
Example 4
According to an embodiment of the present application, there is further provided a processor, where the processor is configured to run a program, and where the program executes the energy supply method of the energy storage system according to the embodiment of the present application when running.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (15)
1. An energy storage system, comprising: the first off-grid energy storage system and the first parallel grid energy storage system allow mutual switching between the first off-grid energy storage system and the first parallel grid energy storage system, wherein,
the first off-grid energy storage system is used for outputting energy to energy consumption equipment in an outdoor scene through a first bidirectional inverter in an off-grid state;
the first parallel network energy storage system is connected with the first off-network energy storage system and is used for outputting energy to energy consumption equipment in an indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
2. The energy storage system of claim 1, wherein the second bi-directional inverter and the first bi-directional inverter are connected in parallel in phase.
3. The energy storage system of claim 1, wherein the energy storage system comprises:
The first grid output port is connected between the first grid-connected energy storage system and the second grid-connected energy storage system and is used for transmitting energy output by the first grid-connected energy storage system to energy consumption equipment in the indoor scene, wherein the second grid-connected energy storage system is deployed in at least one target energy storage system connected with the energy storage system and is used for outputting energy to the energy consumption equipment in the indoor scene through a third bidirectional inverter.
4. The energy storage system of claim 3, wherein the first grid output port is connected to a second grid output port in the target energy storage system, the second grid output port being configured to transmit energy output by the second grid-tied energy storage system to energy consuming devices in the indoor scenario.
5. The energy storage system of claim 4, wherein the first grid output port and the second grid output port are used to connect the first parallel grid energy storage system and the second parallel grid energy storage system in parallel based on a single fire wire or wherein the first grid output port and the second grid output port are used to connect the first parallel grid energy storage system and the second parallel grid energy storage system in series based on a double fire wire.
6. The energy storage system of claim 1, wherein the energy storage system comprises:
the first parallel operation interface is connected between the first off-grid energy storage system and the second off-grid energy storage system and is used for transmitting energy output by the first off-grid energy storage system to energy consumption equipment in an outdoor scene, wherein the second off-grid energy storage system is deployed in at least one target energy storage system connected with the energy storage system and is used for outputting energy to the energy consumption equipment in the outdoor scene through a fourth bidirectional inverter in an off-grid state.
7. The energy storage system of claim 6, wherein the first parallel interface is connected to a second parallel interface in the target energy storage system, the second parallel interface being configured to transmit energy output by the second off-grid energy storage system to energy consuming devices in the outdoor scene.
8. The energy storage system of claim 7, wherein the first parallel interface and the second parallel interface are configured to parallel the first off-grid energy storage system and the second off-grid energy storage system based on a single hot wire, or wherein the first parallel interface and the second parallel interface are configured to series-parallel the first off-grid energy storage system and the second off-grid energy storage system based on a double hot wire.
9. The energy storage system of any of claims 1 to 8, wherein the energy storage system comprises:
the first grid input port is connected with the first grid energy storage system and is used for inputting energy to the first grid energy storage system; and/or the number of the groups of groups,
and the second power grid input port is connected with the first off-grid energy storage system and is used for inputting energy to the first off-grid energy storage system.
10. The energy storage system of any of claims 1 to 8, wherein the first parallel grid energy storage system and the first off-grid energy storage system are stacked and plugged together via a connector.
11. A method of powering an energy storage system, the energy storage system comprising: the method comprises the steps of:
detecting that a scene where the energy storage system is located is an outdoor scene, and controlling the first off-grid energy storage system to output energy to energy consumption equipment in the outdoor scene through a first bidirectional inverter in an off-grid state;
the method comprises the steps of detecting that a scene where an energy storage system is located is an indoor scene, and controlling the first parallel energy storage system to output energy to energy consumption equipment in the indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
12. The method of claim 11, wherein the method further comprises:
switching the energy storage system to at least one target energy storage system in a normal state in response to the energy storage system being in a fault state, wherein the target energy storage system comprises: the second off-grid energy storage system and the second grid-connected energy storage system are mutually switched, the second grid-connected energy storage system is used for outputting energy to energy-consuming equipment in an indoor scene through a third bidirectional inverter, the second off-grid energy storage system is used for outputting energy to the energy-consuming equipment in the outdoor scene through a fourth bidirectional inverter in an off-grid state, and the third bidirectional inverter and the fourth bidirectional inverter are connected in parallel.
13. An energy supply device of an energy storage system, the energy storage system comprising: a first off-grid energy storage system and a first parallel grid energy storage system, the first off-grid energy storage system and the first parallel grid energy storage system allowing for switching therebetween, the apparatus comprising:
the first detection unit is used for detecting that a scene where the energy storage system is located is an outdoor scene, and controlling the first off-grid energy storage system to output energy to energy consumption equipment in the outdoor scene through a first bidirectional inverter in an off-grid state;
The second detection unit is used for detecting that the scene where the energy storage system is located is an indoor scene, and controlling the first parallel energy storage system to output energy to energy consumption equipment in the indoor scene through a second bidirectional inverter, wherein the second bidirectional inverter is connected with the first bidirectional inverter in parallel.
14. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored program, wherein the program when run controls a device in which the computer readable storage medium is located to perform the method of claim 11 or 12.
15. A processor for running a program, wherein the program when run by the processor performs the method of claim 11 or 12.
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| CN202310769654.XA CN116826811A (en) | 2023-06-27 | 2023-06-27 | Energy storage system, energy supply method and device thereof and storage medium |
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| CN202310769654.XA CN116826811A (en) | 2023-06-27 | 2023-06-27 | Energy storage system, energy supply method and device thereof and storage medium |
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Address after: Building 2, Nova Science and Technology Park, No. 1699 Yunshui 3rd Road, High tech Zone, Xi'an City, Shaanxi Province, 710077 Applicant after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant before: XI'AN NOVASTAR TECH Co.,Ltd. |