CN117424317A - Battery awakening method and system and outdoor energy storage device - Google Patents
Battery awakening method and system and outdoor energy storage device Download PDFInfo
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- CN117424317A CN117424317A CN202311440179.8A CN202311440179A CN117424317A CN 117424317 A CN117424317 A CN 117424317A CN 202311440179 A CN202311440179 A CN 202311440179A CN 117424317 A CN117424317 A CN 117424317A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004146 energy storage Methods 0.000 title abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 13
- 230000001276 controlling effect Effects 0.000 claims description 8
- 230000006641 stabilisation Effects 0.000 claims description 7
- 238000011105 stabilization Methods 0.000 claims description 7
- 230000002618 waking effect Effects 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with 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
- H02J7/0063—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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a battery awakening method, a battery awakening system and an outdoor energy storage device, and belongs to the technical field of energy storage batteries; acquiring the current discharge voltage of the battery pack; based on the discharging voltage of the battery pack, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack, and the contactor is controlled to be closed so as to charge the battery pack by using the charging voltage. Based on discharge voltage dc-to-ac converter is adjusted regulated voltage to obtain suitable charging voltage to the group battery charges, make the group battery utilize charging voltage to charge the difficult emergence of time damaging, battery management system can control the contactor closure this moment, in order to charge to the group battery, this application has the effect of being convenient for wake up the group battery.
Description
Technical Field
The invention relates to the technical field of energy storage batteries, in particular to a battery awakening method and system and an outdoor energy storage device.
Background
In an outdoor power supply apparatus, a battery management system (Battery Management System, BMS) is generally used to monitor and manage the state of a battery pack, including the voltage, temperature, charge and discharge states of the battery, etc., for the purpose of improving safety, and protection measures are implemented to prevent problems of overcharge, overdischarge, etc.
The outdoor power supply device includes a battery pack, an inverter, a solar panel, a battery management system (Battery Management System, BMS), and a contactor. Under the normal working state of the outdoor power supply device, the solar panel provides electric energy sources, electric energy is output to the inverter, the inverter is used for stabilizing voltage, the battery management system controls the contactor to be closed, so that the power supply after the voltage stabilization of the inverter is transmitted to the battery pack, and the normal charge and discharge of the battery pack are ensured. However, since the battery management system itself needs to be provided with electric energy by the battery pack to work, the battery management system cannot obtain electric energy to work under the condition of low electric quantity of the battery pack, so that the battery pack cannot be charged either, and the battery pack is awakened by a person on site, which is time-consuming and laborious.
Disclosure of Invention
In order to facilitate waking up an outdoor power supply device when a battery management system is powered down, the application provides a battery waking method, a battery waking system and an outdoor energy storage device.
In a first aspect, the present application provides a battery wake-up method, which adopts the following technical scheme:
a battery wake-up method applied to an outdoor power supply device, the outdoor power supply device comprising an auxiliary power supply, an inverter, a battery management system and a contactor, the method comprising:
in response to the presence of the external power source, the inverter establishes a regulated voltage based on the external power source and delivers the regulated voltage to the auxiliary power source;
the auxiliary power supply is used for supplying power to the battery management system, so that the battery management system starts to operate, and communication connection between the battery management system and the inverter is established;
the battery management system obtains the current discharge voltage of the battery pack;
based on the discharge voltage of the battery pack, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack;
the contactor is controlled to be closed so as to charge the battery pack by using the charging voltage.
Through adopting above-mentioned technical scheme, the dc-to-ac converter establishes stable voltage and supplies power to auxiliary power supply earlier, is supplied power to the battery management system by auxiliary power supply and makes battery management system normal operating, obtains the discharge voltage of group battery by the battery management system again, adjusts regulated voltage based on the discharge voltage dc-to obtain suitable charging voltage and charge to the group battery, and be difficult for taking place to damage when making the group battery utilize charging voltage to charge, the battery management system can control the contactor and close this moment, in order to charge to the group battery, thereby realized the autonomous awakening of group battery under the circumstances that need not manual site operation.
Optionally, when the auxiliary power supply is ac power, the inverter includes a dc inverter and an ac inverter; the outdoor power supply device further comprises a USP power supply, and the inverter establishes a stabilized voltage based on an external power supply, and specifically comprises:
inputting an external power supply to a direct current inverter to output a direct current constant voltage;
inputting a direct-current constant voltage to an alternating-current inverter to output an alternating-current voltage;
the alternating voltage is input into a USP power supply, and the voltage stabilization voltage of the alternating current is output after the USP power supply stabilizes.
Through adopting above-mentioned technical scheme, when auxiliary power supply is exchanging and getting the electricity, utilize DC inverter to stabilize external power supply and obtain direct current constant voltage earlier, the AC inverter receives after the direct current constant voltage and converts direct current constant voltage into alternating current voltage, can obtain the steady voltage that stability is better after the steady voltage of rethread USP power supply to alternating current voltage to auxiliary power supply.
Optionally, the current discharge voltage of the battery pack is less than the charge voltage.
By adopting the technical scheme, the potential difference exists between the charging voltage output by the inverter and the discharging voltage of the battery pack, so that the charging voltage output by the inverter can flow to the battery pack to charge the battery pack.
Optionally, the discharging voltage based on the battery pack, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack, and specifically includes:
calculating a charging voltage range based on a discharging voltage of the battery pack;
and according to the charging voltage range, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack.
By adopting the technical scheme, as the inverter generally has the function of feedback regulation, the charging voltage range of the battery pack is calculated based on the discharging voltage of the battery pack, and the inverter is convenient to continuously regulate the output to be within the charging voltage range, so that the obtained charging voltage meets the related requirement of charging the battery pack.
Optionally, when the auxiliary power supply is a dc power supply, the inverter is a dc inverter, and the inverter establishes a regulated voltage based on an external power supply, and specifically includes:
the dc inverter operates in a constant voltage mode to output a stable voltage in response to an external power source.
By adopting the technical scheme, as the direct current inverter has constant voltage output capability, the direct current inverter can output direct current stabilized voltage in a constant voltage mode when an external power supply exists, so as to supply power to an auxiliary power supply.
Optionally, the controlling the closing of the contactor specifically includes:
after the inverter outputs the charging voltage, outputting a first instruction;
the battery management system responds to the first instruction to obtain the discharge voltage of the battery pack, and if the discharge voltage is lower than a preset value, the contactor is controlled to be closed.
Through adopting above-mentioned technical scheme, after the inverter output charge voltage, indicate that the inverter can be to the normal power supply of group battery this moment, the inverter output first instruction to battery management system, after the battery management system received first instruction, judge again whether the discharge voltage of group battery is less than preset value, if it is in serious feed state to indicate that the group battery this moment, need the power supply in order to prevent the damage of group battery, the closed contactor of this moment is in order to charge to the group battery awaken.
Optionally, the controlling the closing of the contactor specifically includes:
the battery management system receives a remote control instruction; the remote control instruction is from user terminal equipment and is used for remotely waking up the battery pack;
after the inverter outputs the charging voltage, outputting a second instruction;
based on the remote control command and the second command, the battery management system controls the contactor to close.
By adopting the technical scheme, after the inverter outputs the charging voltage, the inverter can normally supply power to the battery pack at the moment, has a wake-up condition, outputs a second instruction to the battery management system, and can close the contactor to wake-up the battery pack by charging if the battery management system receives the remote control instruction.
In a second aspect, the present application provides a battery wake-up system, which adopts the following technical scheme:
a battery wake-up system comprises an auxiliary power supply, an inverter, a battery management system and a contactor;
the inverter is used for responding to the existence of an external power supply, establishing a stabilized voltage based on the external power supply and transmitting the stabilized voltage to the auxiliary power supply;
the auxiliary power supply is used for supplying power to the battery management system so as to enable the battery management system to start to operate and establish communication connection between the battery management system and the inverter;
the battery management system is used for acquiring the current discharge voltage of the battery pack so that the inverter can adjust the voltage stabilization voltage based on the discharge voltage of the battery pack to obtain the charging voltage of the battery pack; the battery management system is also used for controlling the closing of the contactor to charge the battery pack by using the charging voltage.
In a third aspect, the present application provides an outdoor power supply device, which adopts the following technical scheme:
an outdoor power supply device comprises a battery wake-up system as described above.
In a fourth aspect, the present application provides a computer readable storage medium, which adopts the following technical solutions:
a computer readable storage medium comprising a computer program stored thereon that can be loaded by a processor and executed in any of the methods described above.
Drawings
Fig. 1 is a flowchart of a battery wake-up method according to one embodiment of the present application.
Fig. 2 is a flow chart of a method of closing a contactor according to one embodiment of the present application.
Fig. 3 is a flow chart of a method of closing a contactor according to another embodiment of the present application.
Fig. 4 is a block diagram of a battery wake-up system according to one embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The embodiment of the application discloses a battery awakening method. Referring to fig. 1, a battery wake-up method,
be applied to outdoor power supply unit, outdoor power supply unit includes auxiliary power source, dc-to-ac converter, battery management system and contactor, includes:
step S101: in response to the presence of the external power source, the inverter establishes a regulated voltage based on the external power source and delivers the regulated voltage to the auxiliary power source.
The auxiliary power supply can be powered by direct current or alternating current.
Wherein the external power source may be a power source from a solar panel.
It should be appreciated that the auxiliary power source is typically charged using a standard charger or power adapter, which is typically connected to an ac power outlet or other power source. The auxiliary power supply is typically supplied without a complicated charge control process. For charging of a battery pack, the battery pack is the main energy storage part of the outdoor power supply device, and is typically composed of a set of battery cells. The charging of the battery pack is more complicated than the charging of the auxiliary power source, and the chemical characteristics, the charging rate, the temperature control, the charging cycle management and other factors of the battery pack need to be considered. In order to ensure the safety and performance of the battery pack, a specially designed battery management system is generally required to monitor and manage the charging process. Therefore, when the battery management system is not operating, the battery pack cannot be charged, but the power supply of the auxiliary power supply is not affected by the operating state of the battery management system, and the power supply of the auxiliary battery generally does not require complicated charge control, and can supply power to the auxiliary power supply after the stable voltage is established.
Step S102: and supplying power to the battery management system by using an auxiliary power supply, enabling the battery management system to start to operate, and establishing communication connection between the battery management system and the inverter.
It should be appreciated that a corresponding communication protocol needs to be configured between the battery management system and the inverter to ensure that the battery management system and the inverter are able to recognize and communicate with each other. The configuration of the communication protocol includes setting baud rate, communication address, communication protocol type, etc.
Step S103: the battery management system obtains the current discharge voltage of the battery pack.
Among them, the battery management system is generally equipped with various types of sensors to measure state parameters of the battery, including current-voltage information, remaining capacity, temperature, and other related parameters of the battery. And the measured related parameters are transmitted to the battery management system, so that the battery management system can conveniently obtain the discharge voltage of the battery pack.
Step S104: based on the discharge voltage of the battery pack, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack;
the current discharging voltage of the battery pack is smaller than the charging voltage, so that a potential difference exists between the charging voltage output by the inverter and the discharging voltage of the battery pack, and the charging voltage output by the inverter can flow to the battery pack to charge the battery pack.
Step S105: the contactor is controlled to be closed so as to charge the battery pack by using the charging voltage.
It should be appreciated that contactors are provided between the battery pack and the inverter for controlling the on-off between the battery pack and the inverter, and that the contactors are controlled by the battery management supply.
In the above embodiment, the inverter establishes the stable voltage to supply power to the auxiliary power supply, the auxiliary power supply supplies power to the battery management system to enable the battery management system to work normally, the battery management system obtains the discharge voltage of the battery pack, and the inverter adjusts the regulated voltage based on the discharge voltage so as to obtain the proper charge voltage to charge the battery pack, so that the battery pack is not easy to be damaged when being charged by the charge voltage, and at the moment, the battery management system can control the contactor to be closed so as to charge the battery pack, thereby realizing autonomous wake-up of the battery pack under the condition of no need of manual field operation.
As one embodiment of step S101, when the auxiliary power source is ac power, the device includes a dc inverter and an ac inverter; the outdoor power supply apparatus further includes a USP power supply, and step S101 specifically includes:
inputting an external power supply to a direct current inverter to output a direct current constant voltage; inputting a direct-current constant voltage to an alternating-current inverter to output an alternating-current voltage; the alternating voltage is input into a USP power supply, and the voltage stabilization voltage of the alternating current is output after the USP power supply stabilizes.
The UPS power supply comprises a voltage stabilizer, current voltage can be adjusted to keep current within a certain safety range, alternating voltage is input into the UPS power supply, and then stable voltage is output through the UPS power supply, so that the damage to the auxiliary power supply caused by fluctuation of the fluctuating alternating voltage is prevented.
In the above embodiment, when the auxiliary power supply is an ac power supply, the dc inverter is first utilized to stabilize the external power supply to obtain a dc constant voltage, the ac inverter receives the dc constant voltage and converts the dc constant voltage into an ac voltage, and then the USP power supply is used to stabilize the ac voltage to obtain a stabilized voltage with better stability, so as to supply power to the auxiliary power supply.
As another embodiment of step S101, when the auxiliary power supply is dc power, step S101 specifically includes:
the dc inverter operates in a constant voltage mode to output a stable voltage in response to an external power source.
Specifically, in the constant voltage mode of the dc inverter, the dc inverter continuously measures the output current and voltage of the solar panel to calculate the output power level of the dc inverter, and at this time, a stable voltage can be output by means of a preset target power, that is, the dc inverter is based on the current output power and adjusted according to the preset target power, so as to ensure that the output voltage or current of the dc inverter is stable at a set level.
In the above embodiment, since the dc inverter has a constant voltage output capability, the dc inverter can output a constant voltage of dc in a constant voltage mode in which the dc inverter operates in the presence of an external power source, so as to supply power to the auxiliary power source.
As an embodiment of step S104, step S104 specifically includes:
calculating a charging voltage range based on a discharging voltage of the battery pack; and according to the charging voltage range, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack.
Specifically, calculating the charging voltage range based on the discharging voltage of the battery pack specifically includes: and acquiring a voltage difference which can be born by the battery pack, calculating a center charging voltage according to the discharging voltage and the voltage difference of the battery pack, and calculating an error rate of the midpoint charging voltage to obtain a charging voltage range. For example, the error rate may be set to 10% or 15%.
In the above embodiment, since the inverter generally has a feedback adjustment function, the charging voltage range of the battery pack is calculated based on the discharging voltage of the battery pack, so that the inverter can continuously adjust the output to be within the charging voltage range, and the obtained charging voltage can meet the related requirements of charging the battery pack.
As an embodiment of step S105, step S105 specifically includes:
step S201: and after the inverter outputs the charging voltage, outputting a first instruction.
Wherein outputting the first instruction indicates that the inverter has been able to provide a charging voltage suitable for charging the battery pack.
Step S202: the battery management system responds to the first instruction to obtain the discharge voltage of the battery pack, and if the discharge voltage is lower than a preset value, the contactor is controlled to be closed.
It should be understood that, under the condition that the battery management system receives the first instruction, the discharging voltage is used to determine whether the battery pack has a charging requirement, and a discharging voltage lower than the preset value indicates that the battery pack needs to be charged immediately, and the contactor is closed at the moment, so that the battery pack can be charged by the charging voltage.
In the above embodiment, after the inverter outputs the charging voltage, it indicates that the inverter can normally supply power to the battery pack at this time, the inverter outputs the first command to the battery management system, and the battery management system determines whether the discharging voltage of the battery pack is lower than the preset value after receiving the first command, if so, it indicates that the battery pack is in a severe feeding state at this time, and it needs to be charged to prevent damage of the battery pack, and at this time, the contactor is closed to wake up the battery pack by charging.
As another embodiment of step S105, step S105 specifically includes:
step S301: the battery management system receives a remote control instruction; the remote control instruction is from the user terminal equipment and used for remotely waking up the battery pack;
step S302: and outputting a second instruction after the inverter outputs the charging voltage.
Wherein outputting the second instruction indicates that the inverter has been able to provide a charging voltage suitable for charging the battery pack.
Step S303: based on the remote control command and the second command, the battery management system controls the contactor to close.
Specifically, the battery management system can only control the contactor to close if the remote control command and the second command are provided at the same time. This is because if there is no second instruction to indicate that the inverter cannot supply an appropriate voltage to charge the battery, and if there is no remote control instruction to indicate that there is no need to charge the battery at this time, the battery management system controls the battery to charge only if there are both the remote control instruction and the second instruction.
In the above embodiment, after the inverter outputs the charging voltage, it is explained that the inverter can normally supply power to the battery pack at this time, and the inverter has a wake-up condition, and outputs a second command to the battery management system, and if the battery management system receives the remote control command, the contactor can be closed at this time to wake-up the battery pack by charging.
The embodiment of the application discloses a battery wake-up system. Referring to fig. 1, a battery wake-up system includes an auxiliary power source, an inverter, a battery management system, and a contactor.
The inverter is used for responding to the existence of an external power supply, establishing a stabilized voltage based on the external power supply and transmitting the stabilized voltage to the auxiliary power supply;
the auxiliary power supply is used for supplying power to the battery management system so as to enable the battery management system to start to operate and establish communication connection between the battery management system and the inverter;
the battery management system is used for acquiring the current discharge voltage of the battery pack so that the inverter can adjust the voltage stabilization voltage based on the discharge voltage of the battery pack to obtain the charging voltage of the battery pack; the battery management system is also used for controlling the closing of the contactor to charge the battery pack by using the charging voltage.
The battery wake-up system provided by the application can realize the battery wake-up method, and the specific working process of the battery wake-up system can refer to the corresponding process in the embodiment of the method.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
Based on the same technical conception, the invention also discloses an outdoor power supply device which comprises the battery awakening system.
The invention also discloses a computer readable storage medium comprising a computer program stored with instructions executable by a processor to load and execute any of the methods described above.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or 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 communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The foregoing description of the preferred embodiments of the present application is not intended to limit the scope of the application, in which any feature disclosed in this specification (including abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Claims (10)
1. A battery wake-up method, characterized by being applied to an outdoor power supply device, the outdoor power supply device including an auxiliary power supply, an inverter, a battery management system, and a contactor, the method comprising:
in response to the presence of the external power source, the inverter establishes a regulated voltage based on the external power source and delivers the regulated voltage to the auxiliary power source;
the auxiliary power supply is used for supplying power to the battery management system, so that the battery management system starts to operate, and communication connection between the battery management system and the inverter is established;
the battery management system obtains the current discharge voltage of the battery pack;
based on the discharge voltage of the battery pack, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack;
the contactor is controlled to be closed so as to charge the battery pack by using the charging voltage.
2. The method of claim 1, wherein when the auxiliary power source is an ac power source, the inverter comprises a dc inverter and an ac inverter; the outdoor power supply device further comprises a USP power supply, and the inverter establishes a stabilized voltage based on an external power supply, and specifically comprises:
inputting an external power supply to a direct current inverter to output a direct current constant voltage;
inputting a direct-current constant voltage to an alternating-current inverter to output an alternating-current voltage;
the alternating voltage is input into a USP power supply, and the voltage stabilization voltage of the alternating current is output after the USP power supply stabilizes.
3. The method of claim 1, wherein the current discharge voltage of the battery pack is less than the charge voltage.
4. A method according to claim 3, wherein the inverter adjusts the regulated voltage based on the discharge voltage of the battery pack to obtain the charge voltage of the battery pack, and specifically comprises:
calculating a charging voltage range based on a discharging voltage of the battery pack;
and according to the charging voltage range, the inverter adjusts the regulated voltage to obtain the charging voltage of the battery pack.
5. The method according to claim 1, wherein when the auxiliary power source is a dc power source, the inverter is a dc inverter, and the inverter establishes a regulated voltage based on an external power source, comprising:
the dc inverter operates in a constant voltage mode to output a stable voltage in response to an external power source.
6. The method according to claim 1, characterized in that said controlling the closing of the contactor comprises in particular:
after the inverter outputs the charging voltage, outputting a first instruction;
the battery management system responds to the first instruction to obtain the discharge voltage of the battery pack, and if the discharge voltage is lower than a preset value, the contactor is controlled to be closed.
7. The method according to claim 1, characterized in that said controlling the closing of the contactor comprises in particular:
the battery management system receives a remote control instruction; the remote control instruction is from user terminal equipment and is used for remotely waking up the battery pack;
after the inverter outputs the charging voltage, outputting a second instruction;
based on the remote control command and the second command, the battery management system controls the contactor to close.
8. The battery awakening system is characterized by comprising an auxiliary power supply, an inverter, a battery management system and a contactor;
the inverter is used for responding to the existence of an external power supply, establishing a stabilized voltage based on the external power supply and transmitting the stabilized voltage to the auxiliary power supply;
the auxiliary power supply is used for supplying power to the battery management system so as to enable the battery management system to start to operate and establish communication connection between the battery management system and the inverter;
the battery management system is used for acquiring the current discharge voltage of the battery pack so that the inverter can adjust the voltage stabilization voltage based on the discharge voltage of the battery pack to obtain the charging voltage of the battery pack; the battery management system is also used for controlling the closing of the contactor to charge the battery pack by using the charging voltage.
9. An outdoor power supply device, characterized in that: a battery wake-up system comprising the device of claim 8.
10. A computer readable storage medium comprising a computer program stored thereon that can be loaded by a processor and executed by a method according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311440179.8A CN117424317A (en) | 2023-10-31 | 2023-10-31 | Battery awakening method and system and outdoor energy storage device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311440179.8A CN117424317A (en) | 2023-10-31 | 2023-10-31 | Battery awakening method and system and outdoor energy storage device |
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| CN117424317A true CN117424317A (en) | 2024-01-19 |
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| CN202311440179.8A Pending CN117424317A (en) | 2023-10-31 | 2023-10-31 | Battery awakening method and system and outdoor energy storage device |
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| CN (1) | CN117424317A (en) |
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