CN114069820A - Energy storage and power supply system, control method and storage medium - Google Patents

Energy storage and power supply system, control method and storage medium Download PDF

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Publication number
CN114069820A
CN114069820A CN202010789710.2A CN202010789710A CN114069820A CN 114069820 A CN114069820 A CN 114069820A CN 202010789710 A CN202010789710 A CN 202010789710A CN 114069820 A CN114069820 A CN 114069820A
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ups
module
ups module
battery pack
energy storage
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CN202010789710.2A
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Chinese (zh)
Inventor
宫新光
其他发明人请求不公开姓名
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Shenzhen Hangyi Intellectual Property Services Co ltd
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Individual
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Priority to CN202010789710.2A priority Critical patent/CN114069820A/en
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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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • 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
    • H02J7/36—Arrangements using end-cell switching
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection

Abstract

The embodiment of the application discloses an energy storage power supply system, a control method and a storage medium, wherein the energy storage power supply system comprises: at least one uninterrupted power source UPS module, the UPS module includes at least: a UPS battery pack; the energy storage module at least includes: a common battery pack; the energy storage module is connected with the UPS module; when the UPS module is in a first working mode, the UPS battery pack supplies power to the output end of the UPS module; when the UPS module is in a second working mode, the public battery pack supplies power to the output end of the UPS module; the energy storage and power supply system provided by the embodiment of the application can provide electric energy output for the output end of the UPS module based on different battery packs under different working modes of the UPS module; therefore, the application range of the energy storage and power supply system can be enlarged, and the utilization rate of the public battery pack can be improved.

Description

Energy storage and power supply system, control method and storage medium
Technical Field
The present disclosure relates to the field of power supply technologies, and in particular, to an energy storage and power supply system, a control method, and a storage medium.
Background
In the related art, an Uninterruptible Power Supply (UPS) may provide electric energy to an Uninterruptible load when a failure occurs in a utility Power or the like. For example, when the input terminal of the UPS is disconnected from the utility power, the battery pack in the UPS may provide power for the load, and at this time, the battery pack configured in the UPS only needs to discharge for a short time, and the depth of discharge is not large, and the requirement for the cycle life of the number of charge and discharge is not high. For another example, when the input of the UPS inputs a current limit, such as reducing the input capacity of the power grid, the battery pack configured in the UPS needs to discharge for a relatively long time, and has a relatively large depth of discharge and a relatively high requirement on the cycle life of the number of charges and discharges.
Different application scenarios such as this may have inconsistent performance requirements for the battery pack in the UPS; the battery pack in the UPS in the prior art is difficult to realize flexible and effective utilization under different application scenes, so that the application range of the UPS is greatly limited.
Disclosure of Invention
The sending embodiment provides an energy storage and power supply system, a control method and a storage medium.
The technical scheme of the application is realized as follows:
an energy storage and power supply system comprising:
at least one uninterrupted power source UPS module, the UPS module includes at least: a UPS battery pack;
the energy storage module at least includes: a common battery pack; the energy storage module is connected with the UPS module;
when the UPS module is in a first working mode, the UPS battery pack supplies power to the output end of the UPS module; when the UPS module is in a second working mode, the public battery pack supplies power to the output end of the UPS module.
In the above scheme, the UPS module in the first operating mode is: the input of the input end of the UPS module fails; the UPS module is in the second working mode: and the input end of the UPS module is used for inputting current limit.
In the above scheme, when the UPS module is in the first operating mode, and the power supply of the UPS battery pack is abnormal, the public battery pack supplies power to the output end of the UPS module.
In the above solution, when the UPS module is in the second operation mode, the input terminal of the UPS module provides a first percentage of electric power to the output terminal of the UPS module; the common battery pack provides a second percentage of power to the output of the UPS module.
In the above scheme, the UPS module includes: a first charger and discharger; the UPS battery pack supplies power to the output end of the UPS module based on the first charger and discharger.
In the above scheme, the UPS module includes a second charger and discharger, or the energy storage module includes the second charger and discharger;
the energy storage module is connected with the UPS module through at least one second charger and discharger respectively.
In the above scheme, the common battery pack supplies power to the output end of the UPS module based on the second charger and discharger.
In the above solution, the UPS module further includes: a first controller;
the energy storage module still includes: a second controller connected with the first controller;
the first controller sends a first control signal to the second controller, wherein the first control signal is used for prohibiting the public battery pack from supplying power to an output end of the UPS module; alternatively, the first and second electrodes may be,
and the first controller sends a second control signal of the UPS module in the second working mode to the second controller, wherein the second control signal is used for controlling the public battery pack to supply power to the output end of the UPS module.
In the above scheme, the second charger and discharger is further configured to receive electric quantity input by a power supply outside the energy storage power supply system to charge the energy storage module.
The embodiment of the application provides a control method, which is applied to an energy storage power supply system, wherein the energy storage power supply system comprises at least one Uninterruptible Power Supply (UPS) module and an energy storage module, and the method comprises the following steps:
if the UPS module is in a first working mode, controlling a UPS battery pack of the UPS module to supply power to the output end of the UPS module;
and if the UPS module is in a second working mode, controlling the common battery pack of the energy storage module to supply power to the output end of the UPS module.
In the above scheme, the method includes:
if the input of the input end of the UPS module is determined to be invalid, determining that the UPS module is in the first working mode; alternatively, the first and second electrodes may be,
and if the input current limit of the input end of the UPS module is determined, determining that the UPS module is in a second working mode.
In the above scheme, the method further comprises:
and if the UPS module is in the first working mode and the power supply of the UPS battery pack is abnormal, controlling the public battery pack of the energy storage module to supply power to the output end of the UPS module.
In the above-mentioned scheme, the UPS module is in the second mode of operation, and control the public group battery of energy storage module gives the output power supply of UPS module includes:
if the UPS module is in the second working mode, controlling the public battery pack to provide second percentage of electric quantity for the output end of the UPS module;
the method further comprises the following steps:
and controlling the input end of the UPS module to provide the second percentage of electric quantity for the output end of the UPS module.
In the above-mentioned scheme, control the UPS group battery of UPS module gives the output power supply of UPS module includes:
controlling the UPS battery pack to supply power to the output end of the UPS module based on a first charger and discharger of the UPS module;
the control the public group battery of energy storage module gives the output power supply of UPS module includes:
and controlling the common battery pack to supply power to the output end of the UPS module based on the second charger and discharger of the energy storage module.
In the above scheme, the method further comprises:
the first controller of the UPS module generates a first control signal or a second control signal and sends the first control signal or the second control signal to the second controller of the energy storage module;
the first control signal is used for forbidding the public battery pack to supply power to the output end of the UPS module; the second control signal is used for controlling the public battery pack to supply power to the output end of the UPS module.
The embodiment of the present application further provides a computer storage medium, where computer-executable instructions are stored, and the computer-executable instructions are executed by a processor to implement the control method according to any embodiment of the present application.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the energy storage power supply system that this application embodiment provided, energy storage power supply system includes at least one uninterrupted power source UPS module, the UPS module includes at least: a UPS battery pack; the energy storage module at least includes: a common battery pack; the energy storage module is connected with the UPS module; when the UPS module is in a first working mode, the UPS battery pack supplies power to the output end of the UPS module; when the UPS module is in a second working mode, the public battery pack supplies power to the output end of the UPS module. Therefore, the embodiment of the application can be provided with two different sets of battery packs in the energy storage power supply system, namely the battery pack of the UPS module and the common battery pack in the energy storage module; therefore, under different working modes of the UPS module (for example, the input current of the input end of the UPS module is 0 or less than the rated current), the output end of the UPS module can provide electric energy output based on different battery packs; therefore, the energy storage power supply system can adapt to power supply of application scenes in different working modes, and the application range of the energy storage power supply system can be enlarged.
In addition, in the embodiment of the present application, when the UPS modules are in the second operation mode, regardless of whether one or more UPS modules are provided, a set of the common battery pack may be used to provide power output for the output terminals of one or more UPS modules, so as to improve the utilization rate of the common battery pack.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic diagram of a UPS module according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a UPS module according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a UPS module according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of an energy storage and power supply system according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an energy storage and power supply system according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of an energy storage and power supply system according to an embodiment of the present disclosure;
fig. 7 is a flowchart of a control method according to an embodiment of the present application;
fig. 8 is a schematic hardware structure diagram of an apparatus according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning by themselves. Thus, "module", or "unit" may be used mixedly.
As shown in fig. 1, a schematic diagram of a UPS module is provided, wherein the UPS module includes: a UPS battery pack 11, a rectifier 12, an inverter 13, a charger and discharger 14, and a bypass switch 15. Here, the rectifier is used to convert alternating current into direct current; the inverter is used for converting the direct current into alternating current. Here, the battery pack may be a secondary battery or the like.
Referring to fig. 1 again, the UPS module is in a normal operation mode, the rectifier 12 converts the commercial power into direct current, and the direct current discharges the UPS battery pack 11 through the charger and discharger 14; meanwhile, the dc power is converted into ac power by the inverter 13 to supply power to a load.
Referring to fig. 2, the UPS module is in a battery mode; in the battery operating mode, the input terminal of the UPS module fails, for example, the input terminal of the UPS module is disconnected from the utility power or the rectifier is abnormal. In the battery operation mode, the UPS battery pack 11 supplies dc power to the inverter 13; the inverter 13 converts the dc power into ac power to supply a load.
Referring to fig. 3, the UPS module is in bypass mode; the switches of the inverter 13 are turned off, and the ac power input from the input of the UPS module supplies power to the load through the bypass switch 15.
As shown in fig. 4, an embodiment of the present application provides an energy storage power supply system, where the energy storage power supply system includes:
at least one Uninterruptible Power Supply (UPS) module 41, the UPS module 41 at least includes: a UPS battery pack 411;
the energy storage module 42 at least includes: a common battery pack 421; the energy storage module 42 is connected with the UPS module 41;
when the UPS module 41 is in the first operation mode, the UPS battery pack 411 supplies power to the output terminal of the UPS module 41; when the UPS module 41 is in the second operation mode, the common battery 421 supplies power to the output terminal of the UPS module 41.
The embodiment of the application can be applied to various energy storage and power supply systems; for example, the method can be applied to server clusters of hospitals, offices, malls, military troops and the like.
In one embodiment, the input terminal of the UPS module 41 is connected to the utility power, and the output terminal of the UPS module 41 is connected to the load. Here, the load may be various electric devices such as a computer, a server, and the like.
Here, the UPS battery pack or the common battery pack supplies power to the output end of the UPS module, that is: the UPS battery pack or the public battery pack provides electric energy output for the output end of the UPS module. If the UPS module output end is connected with the load, the UPS battery pack or the power supply battery pack supplies power to the output end of the UPS module, namely: the UPS battery pack or the public battery pack supplies power to the load connected with the UPS module.
Here, the UPS module in the first operation mode is: the input of the input end of the UPS module fails; the UPS module is in the second working mode: and the input end of the UPS module is used for inputting current limit.
Here, the input failure of the input terminal of the UPS module includes: the current or the voltage input based on the input end of the UPS module is 0.
Here, the input current limit of the UPS module includes: the current input based on the input end of the UPS module is smaller than the rated current, or the voltage input based on the input end of the UPS module is smaller than the rated voltage, or the power input based on the input end of the UPS module is smaller than the rated power. For example, the amount of power required by the UPS module to power the load is 500KVA, and if the input power of the input terminal of the UPS module is 400KVA, the input terminal of the UPS module is an input current limit.
In a practical application, the first operation mode can be regarded as a battery operation mode; the second mode of operation may be considered a peak clipping mode or an input current limiting mode.
For example, in an application scenario, if the input terminal of the UPS module is disconnected from the utility power or the current input to the input terminal is 0, the UPS module may be considered to be in the first operating mode. For another example, in another application scenario, if a rectifier in the UPS module fails, the UPS module may also be considered to be in the first operation mode.
For example, in an application scenario, if the input capacity of the power grid is reduced, the UPS mode may be considered to be in the second operating mode.
Here, the UPS module may be one or more. For example, as shown in fig. 4, there are 3 UPS modules, and each UPS module is connected to the energy storage module; each UPS module can obtain the electric quantity from the public battery pack.
Here, the energy storage module is connected to the UPS module and may be: the energy storage module is connected with the output end of the rectifier in the UPS module, or the energy storage module is connected with the input end of the inverter in the UPS module. Here, in practical applications, as shown in fig. 1, the output terminal of the rectifier in the UPS module is connected to the input terminal of the inverter.
In the prior art, if the UPS module is in the first operating mode, please refer to fig. 2, when the input terminal of the UPS module loses the commercial power, the UPS battery pack in the UPS module discharges electricity for a short time before the commercial power is restored or switched to the backup power source such as the diesel engine generator. The starting time of the diesel generator and the like is short, such as 1-3 minutes; the time of the short discharge is also relatively short, e.g. 3-10 minutes; and because the commercial power is relatively stable, the requirement on the service life of the charge-discharge cycle times of the UPS battery pack is not high; and the short-time discharge requires that the discharge current of the UPS battery pack is relatively large.
If the UPS module is in the second operating mode, referring to fig. 1, for the situation that the electric quantity input by the input end of the UPS is insufficient, if the UPS battery pack is still used for supplying power to compensate, for example, if the power supply needs 80% of the electric quantity input by the input end of the UPS, 20% of the electric quantity input by the UPS battery pack is needed for compensating. In this case, it is necessary to make the discharge current of the UPS battery pack not very large and to make the life of the number of charge and discharge cycles relatively long. Therefore, in the prior art, it is difficult to adapt to the application scenario that the UPS module is in the first operating mode and the second operating mode by configuring a set of battery pack in the UPS module.
In the embodiment of the present application, when the UPS module is in the first operating mode, the UPS battery pack may be used to supply power to the output terminal of the UPS module; and when the UPS module is in a second working mode, the public battery pack is utilized to supply power to the output end of the UPS module. Therefore, two different sets of battery packs can be configured in the energy storage and power supply system, so that electric energy can be provided for the input end of the UPS module based on the different battery packs in different working modes; therefore, the energy storage power supply system can adapt to power supply under different application scenes, the application range of the energy storage power supply system can be enlarged, and the energy storage power supply system can be optimized.
In addition, in the embodiment of the application, when the UPS modules are in the second operation mode, regardless of whether one or more UPS modules are provided, a set of the common battery pack can be used to provide electric energy for the output ends of one or more UPS modules, so that the utilization rate of the common battery pack can be improved.
In some embodiments, when the UPS module is in the first operating mode and the UPS battery pack is abnormally powered, the common battery pack supplies power to the output terminal of the UPS module.
Here, the UPS battery pack is abnormal, including but not limited to one of: and the discharge of the UPS battery pack is finished, and the UPS battery pack is subjected to fault maintenance.
In the embodiment of the application, if the UPS module is in the first operating mode and a UPS battery pack is abnormally powered, the common battery pack can still be used to provide electric energy for the output end of the UPS module; therefore, the utilization rate of the common battery pack in the energy storage module can be further improved. And when the input of the UPS input end fails and the battery pack of the UPS module has abnormal power supply, the uninterrupted power supply can be provided through the public battery pack of the energy storage module, so that the energy storage power supply system can be further ensured to provide uninterrupted power supply, and the stability of power supply is maintained.
As shown in fig. 5, in some embodiments, the UPS module 41 includes: a first charger and discharger 412; the UPS battery pack 411 supplies power to the output of the UPS module based on the first charger and discharger 412.
Here, the first charger and discharger is in an operating state. In one embodiment, the first charger and discharger is in a discharge mode.
Thus, in the embodiment of the present application, it can be realized through the first charger/discharger that the UPS battery pack provides power output to the output terminal of the UPS module.
Of course, in other embodiments, the first charger and discharger may be in a charging mode of operation. For example, when the input end of the UPS module is connected to the utility power, the electric quantity input by the input end of the UPS module may be used to supply power to the output end of the UPS module, and on the other hand, the UPS battery pack may be supplied with power through the first charger and discharger.
Of course, in other embodiments, the first charger and discharger may be in a sleep state.
As shown in fig. 5, in some embodiments, the energy storage module 42 includes a second charger and discharger 422;
the energy storage module 42 is connected to one UPS module 42 through at least one second charger and discharger 422.
In one embodiment, the energy storage module may be connected to one UPS module through one second charger and discharger. For example, as shown in fig. 5, the common battery pack in the energy storage module is connected to the output terminal of the rectifier of the 1 st UPS module through a second charger and discharger.
In another embodiment, the energy storage module may be connected to one UPS module through a plurality of second chargers and dischargers. For example, as shown in fig. 5, the common battery pack in the energy storage module is connected to the output end of the rectifier of the 2 nd UPS module through two second chargers and dischargers.
Certainly, in an application scenario, the common battery pack in the energy storage module may be directly connected to the dc bus of the UPS module through the second charger/discharger; the direct current bus is connected with the rectifier and the inverter of the UPS module.
Here, the second charger and discharger is connected to an output terminal of a rectifier of the UPS module or an input terminal of an inverter of the UPS module.
In some embodiments, the common battery pack supplies power to the output of the UPS module based on the second charger and discharger.
The second charger and discharger here is in an operating state. In an embodiment, the second charger and discharger is in a discharge mode.
Thus, in this embodiment of the application, it can be realized through the second charger/discharger that the common battery pack provides the electric energy output to the output terminal of the UPS module.
Of course, in other embodiments, the second charger/discharger may be in the charging mode. For example, when the input end of the UPS module is connected to the utility power, the electric quantity input by the input end of the UPS module can also be used for charging the common battery pack in the energy storage module.
Of course, in other embodiments, the second charger and discharger may be in the sleep mode.
In one embodiment, the relationship between the operation mode and the operation states of the first charger and discharger and the second charger and discharger is disclosed as shown in table 1 below. When the UPS module is in a first working mode, a first charging and discharging device of the UPS module is in a working state, and a second charging and discharging device of the UPS module is in a dormant state; and under the first working mode, if the first charger and discharger is subjected to fault maintenance or the discharge of the UPS battery pack is stopped, the second charger and discharger are in a working state. When the UPS module is in the second working mode, the first charge and discharge device of the UPS module is in a dormant state, and the second charge and discharge device is in a working state.
Figure BDA0002623325750000101
TABLE 1
As shown in fig. 6, in some embodiments, the UPS module 41 includes a second charger and discharger 422;
the energy storage module 42 is connected to one UPS module 42 through at least one second charger and discharger 422.
In the embodiment of the application, each UPS module has two sets of integrated chargers and dischargers, is first charger and discharger respectively for USP battery pack provides electric energy output to the output of UPS module, and second charger and discharger is used for public battery pack to provide electric energy output to the output of UPS module. So, the energy storage module can need not dispose the ware that charges and discharges that corresponds with the UPS module that corresponds, can simplify when the energy storage module structure, can also improve the suitability of energy storage module and each UPS module greatly.
In some embodiments, the second charger and discharger 422A is further configured to receive an amount of power input from a power source outside the energy storage power supply system to charge the energy storage module.
Here, the power supply outside the energy storage power supply system may be any other form of power supply; for example, the power source may be a light energy power source, a wind energy power source, a solar energy power source, or a power source using hydroelectric power.
Here, the second charger and discharger 422A is in an operation state of a charging mode.
In the embodiment of the application, the energy storage module can also be charged and supplemented for the energy storage module by accessing other power systems, so that a public battery pack of the energy storage module can have enough electric quantity to supply power to an output end of the UPS module; therefore, the stability of the energy storage power supply system for supplying power to the load can be further ensured.
In some embodiments, when the UPS module is in the second mode of operation, the input of the UPS module provides a first percentage of power to the output of the UPS module; the common battery pack provides a second percentage of power to the output of the UPS module.
For example, as shown in fig. 5, there are 3 UPS modules. The input end of the 1 st UPS module provides 80% of electric quantity for the output end of the 1 st UPS module, and the public battery pack provides 20% of electric quantity for the output end of the 1 st UPS module; for example, the 1 st UPS module needs to provide 500KVA power to the load, then the 1 st input of the UPS module provides 400KVA power to the 1 st output of the UPS module, and the common battery pack provides 100KVA power to the 1 st output of the UPS module. The input end of the 2 nd UPS module provides 80% of electric quantity for the output end of the 2 nd UPS module, and the public battery pack provides 20% of electric quantity for the output end of the 2 nd UPS module; for example, the 2 nd UPS module needs to provide 1000KVA of power to the load, then the 2 nd input of the UPS module provides the 2 nd output of the UPS module with 800KVA of power, and the common battery pack provides the 2 nd output of the UPS module with 200KVA of power. Here, in the 2 nd UPS module, the common battery pack provides 200KVA power to the output of the UPS module through two second chargers/dischargers, and one of the second chargers/dischargers provides 100KVA power. The input end of the 3 rd UPS module provides 70% of electric quantity for the output end of the 3 rd UPS module, and the public battery pack provides 30% of electric quantity for the output end of the 3 rd UPS module; for example, the 3 rd UPS module needs to provide 1000KVA power to the load, the 3 rd input of the UPS module provides 700KVA power to the 3 rd output of the UPS module, and the common battery pack provides 300KVA power to the 3 rd output of the UPS module.
It is understood that the amount of power supplied to the load may be different for different UPS modules; and the percentage of the power supply capacity of the input end of different UPS modules to the output end thereof may also be different, and the percentage of the power supply capacity of the common battery pack to the output end of different UPS modules may also be different.
In an embodiment, the first percentage is greater than the second percentage. For example, in the above example, the 1 st UPS module may have its input terminal providing 80% of the power to the output terminal of the 1 st UPS module, and the common battery pack providing 20% of the power to the output terminal of the 1 st UPS module
In another embodiment, the first percentage is less than or equal to the second percentage. For example, in the above example, in the 3 rd UPS module, the input terminal of the 3 rd UPS module may provide 40% of the power to the output terminal of the 3 rd UPS module, and the common battery pack may provide 60% of the power to the output terminal of the 3 rd UPS module.
In the embodiment of the application, when the second operating mode is performed, that is, when the electric quantity input at the input end of the UPS module is smaller than the rated electric quantity, the electric quantity can be provided by the common battery pack to compensate, so that the energy storage and power supply system can supply power to the load uninterruptedly and stably.
In addition, the embodiment of the application can utilize the public battery pack of one energy storage module to provide different electric quantities for the plurality of UPS modules for compensation, so that the utilization rate of the public battery pack can be further improved.
In the embodiment of the application, when the input current of the input end of at least one UPS module in the UPS modules is 0, the common battery pack can be directly used as a rear power supply to provide power output and the like for the output end of the UPS module, so that the utilization rate of the common battery pack can be further improved.
In some embodiments, the UPS module 41 further includes: a first controller 413;
the energy storage module 42 further includes: a second controller 423, the second controller 423 being connected to the first controller 413;
the first controller 413 sends a first control signal to the second controller 423, where the first control signal is used to disable the common battery 421 from supplying power to the output end of the UPS module 41, and the UPS module 41 is in the first operation mode; alternatively, the first and second electrodes may be,
the first controller 413 sends a second control signal to the second controller 423, where the second control signal is used to control the common battery 421 to supply power to the output end of the UPS module 41.
Here, one UPS module includes a first controller, and the second controller is connected to each of the first controllers. In this way, the first controller of each UPS module may send the first control signal or the second control signal to the second controller. In this way, the energy storage modules may respond to control of the first controller of each UPS module by a second controller.
In other embodiments, one of the UPS modules includes a first controller, and the energy storage modules include the same number of second controllers as the UPS modules; one first controller is correspondingly connected with one second controller. As such, in this example, the plurality of second controllers in the energy storage module may respectively respond to the control of the first controller of the corresponding UPS module.
Here, one way to realize that the common battery pack is prohibited from supplying power to the output terminal of the UPS module is to: the second controller controls the second charger and discharger to be in a charging mode based on the first control signal, and then the public battery pack does not supply power to the output end of the UPS module based on the second charger and discharger.
Here, one way to control the common battery pack to supply power to the output terminal of the UPS module is to: and the second controller controls the second charger and discharger to be in a discharging mode based on the second control signal, and then the public battery pack supplies power to the output end of the UPS module based on the second charger and discharger.
In this application embodiment, can send control signal through first controller for the second controller to when can making the UPS module be in different modes, public group battery can the different modes of adaptation supply power for the output of UPS module, thereby can improve the stability of whole energy storage power supply system mutual cooperativity and power supply.
It can be understood that, in the embodiment of the present application, the UPS module and the energy storage module may be in the same device or in different devices.
In one embodiment, when the UPS module and the energy storage module are not in the same device, the first controller may further establish a communication connection with the second controller. Therefore, the energy storage module and the UPS module can also carry out information interaction through communication connection.
For further describing the embodiment of the present application in detail, an embodiment of the present application further provides an energy storage and power supply system, as shown in fig. 5, where the energy storage and power supply system includes:
at least one Uninterruptible Power Supply (UPS) module 41, the UPS module 41 at least includes: a UPS battery pack 411, a first charger and discharger 412, and a first controller 413;
the energy storage module 42 includes: a common battery pack 421, a second charger and discharger 422, and a second controller 423;
the common battery pack 421 is connected to the UPS module 41 through the second charger and discharger 422;
when the UPS module 41 is in the first operation mode, the first controller 413 sends a first control signal to the second controller 423, so that the second controller 423 disables the common battery pack 421 to supply power to the output terminal of the UPS module 41; the UPS battery pack 411 supplies power to the output of the UPS module 41.
When the UPS module 42 is in the second operation mode, the first controller 413 sends a second controller signal to the second controller 423, so that the second controller 423 controls the common battery 421 to supply power to the output terminal of the UPS module 41.
In an optional embodiment, when the UPS module 42 is in the first operation mode and the UPS battery pack 411 is abnormally powered, the first controller 413 sends a third controller signal to the second controller 423, so that the second controller 423 controls the common battery pack 421 to power the output terminal of the UPS module 41.
In the embodiment of the application, two different sets of battery packs can be configured in the energy storage power supply system, so that electric energy can be provided for the input end of the UPS module based on the different battery packs in different working modes; therefore, the power supply system can adapt to power supply under different application scenes, and the design of the energy storage and power supply system can be optimized.
Furthermore, when the UPS modules are in the second operating mode, one or more UPS modules may be powered by one set of the common battery pack, so that the utilization rate of the common battery pack can be increased.
Here, it should be noted that: the following description of the control method items is similar to the above description of the energy storage and power supply system, and is not repeated with the description of the beneficial effects of the energy storage and power supply system. For technical details not disclosed in the embodiments of the control method of the present application, refer to the description of the embodiments of the control system of the present application.
As shown in fig. 7, a control method, the method comprising:
step S51: if the UPS module is in a first working mode, controlling a UPS battery pack of the UPS module to supply power to the output end of the UPS module;
step S52: and if the UPS module is in a second working mode, controlling the common battery pack of the energy storage module to supply power to the output end of the UPS module.
The method is applied to an energy storage and power supply system, wherein the energy storage and power supply system comprises at least one Uninterruptible Power Supply (UPS) module and an energy storage module; the energy storage module is connected with the UPS module.
In some embodiments, the method comprises:
if the input of the input end of the UPS module is determined to be invalid, determining that the UPS module is in the first working mode; alternatively, the first and second electrodes may be,
and if the input current limit of the input end of the UPS module is determined, determining that the UPS module is in a second working mode.
In some embodiments, the method further comprises:
and if the UPS module is in the first working mode and the power supply of the UPS battery pack is abnormal, controlling the public battery pack of the energy storage module to supply power to the output end of the UPS module.
In some embodiments, the step S52 includes:
if the UPS module is in the second working mode, controlling the public battery pack to provide second percentage of electric quantity for the output end of the UPS module;
the method further comprises the following steps:
and controlling the input end of the UPS module to provide the second percentage of electric quantity for the output end of the UPS module.
In some embodiments, the controlling the UPS battery pack of the UPS module to supply power to the output of the UPS module includes:
controlling the UPS battery pack to supply power to the output end of the UPS module based on a first charger and discharger of the UPS module;
the control the public group battery of energy storage module gives the output power supply of UPS module includes:
and controlling the common battery pack to supply power to the output end of the UPS module based on the second charger and discharger of the energy storage module.
In some embodiments, the method further comprises:
the first controller of the UPS module generates a first control signal or a second control signal and sends the first control signal or the second control signal to the second controller of the energy storage module;
the first control signal is used for forbidding the public battery pack to supply power to the output end of the UPS module; the second control signal is used for controlling the public battery pack to supply power to the output end of the UPS module.
Here, it should be noted that: the following description of the storage medium and device embodiments, similar to the description of the stored energy power system embodiments described above, has similar beneficial effects as the stored energy power system embodiments. For technical details not disclosed in the embodiments of the storage medium and the device of the present application, please refer to the description of the embodiments of the energy storage and supply system of the present application.
The embodiment of the application provides a computer storage medium, wherein computer-executable instructions are stored in the computer storage medium and are executed by a processor to realize the control method in any embodiment of the application.
An embodiment of the present application further provides an apparatus, as shown in fig. 8, the apparatus includes: a processor 61, a communication interface 62 and a memory 63; wherein the content of the first and second substances,
the processor 61 generally controls the overall operation of the terminal device or the network device.
The communication interface 62 may enable the terminal device or the network device to communicate with other terminals or servers through a network.
Here, the apparatus is an apparatus including at least one UPS module, or the apparatus is an apparatus including an energy storage module, or the apparatus is an apparatus including at least one UPS module and an energy storage module.
The Memory 63 is configured to store instructions and applications executable by the processor 61, and may also buffer data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or already processed by the processor 31 and modules in the terminal, and may be implemented by a FLASH Memory (FLASH) or a Random Access Memory (RAM).
It will be appreciated that the processor 61 described herein may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 61. The storage medium is located in a memory 63, and the processor 61 reads the information in the memory 63 and performs the steps of the above method in combination with the hardware thereof.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The above-mentioned separate components may or may not be physically separate, and the components shown may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media capable of storing program codes, such as a removable Memory device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.
Alternatively, the integrated unit may be stored in a readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially implemented in the form of a software product, which is stored in a storage medium and includes several instructions to make a terminal execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
It should be noted that: the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (16)

1. An energy storage and power supply system, comprising:
at least one uninterrupted power source UPS module, the UPS module includes at least: a UPS battery pack;
the energy storage module at least includes: a common battery pack; the energy storage module is connected with the UPS module;
when the UPS module is in a first working mode, the UPS battery pack supplies power to the output end of the UPS module; when the UPS module is in a second working mode, the public battery pack supplies power to the output end of the UPS module.
2. The energy storage and power supply system of claim 1, wherein the UPS module in the first mode of operation is: the input of the input end of the UPS module fails; the UPS module is in the second working mode: and the input end of the UPS module is used for inputting current limit.
3. The energy storage and power supply system according to claim 1 or 2, wherein when the UPS module is in the first operation mode and the UPS battery pack is abnormally powered, the common battery pack supplies power to the output terminal of the UPS module.
4. The energy-storing and power-supplying system of claim 2, wherein the input of the UPS module supplies a first percentage of power to the output of the UPS module when the UPS module is in the second mode of operation; the common battery pack provides a second percentage of power to the output of the UPS module.
5. The energy storage and power supply system according to claim 1 or 2, wherein the UPS module comprises: a first charger and discharger; the UPS battery pack supplies power to the output end of the UPS module based on the first charger and discharger.
6. The energy-storage power supply system according to claim 1 or 2, wherein the UPS module comprises a second charger and discharger, or the energy-storage module comprises the second charger and discharger;
the energy storage module is connected with the UPS module through at least one second charger and discharger respectively.
7. The energy-storage power supply system according to claim 6, wherein the common battery pack supplies power to the output of the UPS module based on the second charger and discharger.
8. The energy storage and power supply system according to claim 1 or 2, wherein the UPS module further comprises: a first controller;
the energy storage module still includes: a second controller connected with the first controller;
the first controller sends a first control signal to the second controller, wherein the first control signal is used for prohibiting the public battery pack from supplying power to an output end of the UPS module; alternatively, the first and second electrodes may be,
and the first controller sends a second control signal of the UPS module in the second working mode to the second controller, wherein the second control signal is used for controlling the public battery pack to supply power to the output end of the UPS module.
9. The energy-storage power supply system according to claim 1 or 2, wherein the second charger and discharger is further configured to receive an amount of power input from a power source outside the energy-storage power supply system to charge the energy-storage module.
10. A control method is applied to an energy storage power supply system, wherein the energy storage power supply system comprises at least one Uninterruptible Power Supply (UPS) module and an energy storage module, and the method comprises the following steps:
if the UPS module is in a first working mode, controlling a UPS battery pack of the UPS module to supply power to the output end of the UPS module;
and if the UPS module is in a second working mode, controlling the common battery pack of the energy storage module to supply power to the output end of the UPS module.
11. The method of claim 10, wherein the method comprises:
if the input of the input end of the UPS module is determined to be invalid, determining that the UPS module is in the first working mode; alternatively, the first and second electrodes may be,
and if the input current limit of the input end of the UPS module is determined, determining that the UPS module is in a second working mode.
12. The method according to claim 10 or 11, characterized in that the method further comprises:
and if the UPS module is in the first working mode and the power supply of the UPS battery pack is abnormal, controlling the public battery pack of the energy storage module to supply power to the output end of the UPS module.
13. The method of claim 11, wherein the UPS module is in a second mode of operation, and wherein controlling the common battery pack of the energy storage modules to supply power to the output of the UPS module comprises:
if the UPS module is in the second working mode, controlling the public battery pack to provide second percentage of electric quantity for the output end of the UPS module;
the method further comprises the following steps:
and controlling the input end of the UPS module to provide the second percentage of electric quantity for the output end of the UPS module.
14. The method of claim 10 or 11, wherein controlling the UPS battery pack of the UPS module to supply power to the output of the UPS module comprises:
controlling the UPS battery pack to supply power to the output end of the UPS module based on a first charger and discharger of the UPS module;
the control the public group battery of energy storage module gives the output power supply of UPS module includes:
and controlling the common battery pack to supply power to the output end of the UPS module based on the second charger and discharger of the energy storage module.
15. The method according to claim 10 or 11, characterized in that the method further comprises:
the first controller of the UPS module generates a first control signal or a second control signal and sends the first control signal or the second control signal to the second controller of the energy storage module;
the first control signal is used for forbidding the public battery pack to supply power to the output end of the UPS module; the second control signal is used for controlling the public battery pack to supply power to the output end of the UPS module.
16. A computer storage medium storing computer-executable instructions, the computer-executable instructions being executable by a processor to implement the control method of any one of claims 10-15.
CN202010789710.2A 2020-08-07 2020-08-07 Energy storage and power supply system, control method and storage medium Pending CN114069820A (en)

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