CN114335764A - Control method and device, energy storage system and non-volatile computer readable storage medium - Google Patents
Control method and device, energy storage system and non-volatile computer readable storage medium Download PDFInfo
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Abstract
The application discloses a control method, a control device, an energy storage system and a non-volatile computer readable storage medium. The control method comprises the following steps: the first control chip is used for controlling the work of the electricity storage module and sending a holding signal to the second control chip; and in a preset time, if the second control chip cannot receive the holding signal, switching the second control chip to control the work of the electricity storage module. The first control chip continuously sends a holding signal to the second control chip to report that the first control chip is always in a normal working state, however, when the second control chip does not receive the holding signal sent by the first control chip within a preset time length, the first control chip is indicated to have a fault, and at the moment, the second control chip is switched to control the work of the power storage module. Therefore, the safety and the stability of the power storage module can be effectively guaranteed by configuring the dual-redundancy control chips and utilizing the continuous communication between the two control chips.
Description
Technical Field
The present disclosure relates to the field of battery technologies, and more particularly, to a control method, a control apparatus, an energy storage system, and a non-volatile computer-readable storage medium.
Background
At present, along with the development of electronic equipment, the requirement on batteries is also higher and higher, and a single battery cannot meet the increasing electric quantity requirement, a plurality of batteries are combined together and controlled by a master controller to realize power supply in related technologies, however, once the master controller fails, serious potential safety hazard problems are easily caused, and therefore a scheme capable of effectively preventing potential safety hazards caused by out-of-control master control is urgently needed.
Disclosure of Invention
The embodiment of the application provides a control method, a control device, an energy storage system and a nonvolatile computer readable storage medium.
The control method of the embodiment of the application comprises the steps that a first control chip controls the work of an electricity storage module, and a holding signal is sent to a second control chip through the first control chip; and in a preset time, if the second control chip cannot receive the holding signal, switching the second control chip to control the work of the electricity storage module.
The control device of the embodiment of the application comprises a control module and a switching module. The control module is used for controlling the work of the electricity storage module through the first control chip and sending a holding signal to the second control chip through the first control chip; the switching module is used for switching the second control chip to control the work of the power storage module if the second control chip cannot receive the holding signal within a preset time.
The energy storage system comprises an electricity storage module, a first control chip and a second control chip, wherein the first control chip is used for controlling the work of the electricity storage module and sending a holding signal to the second control chip; the second control chip is used for controlling the work of the power storage module when the holding signal is not received within the preset time.
The non-transitory computer-readable storage medium of the embodiments of the present application contains a computer program that, when executed by one or more processors, causes the processors to execute a control method of: the work of the power storage module is controlled through the first control chip, and a holding signal is sent to the second control chip through the first control chip; and in a preset time, if the second control chip cannot receive the holding signal, switching the second control chip to control the work of the electricity storage module.
In the control method, the control device, the energy storage system and the non-volatile computer-readable storage medium according to the embodiments of the present application, the first control chip continuously sends the holding signal to the second control chip to report that the first control chip is always in the normal operating state, at this time, the power storage module is controlled by the first control chip to normally operate, however, when the second control chip does not receive the holding signal sent by the first control chip within the predetermined time period, it indicates that the first control chip has a fault and cannot normally operate, and therefore, at this time, the second control chip is switched to control the operation of the power storage module. Therefore, the safety and the stability of the power storage module can be effectively guaranteed by configuring the dual-redundancy control chips and utilizing the continuous communication between the two control chips.
Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart of a control method according to certain embodiments of the present application;
FIG. 2 is a block schematic diagram of a control device according to certain embodiments of the present application;
FIG. 3 is a schematic structural diagram of an energy storage system according to certain embodiments of the present disclosure;
FIG. 4 is a schematic flow chart diagram of a control method according to certain embodiments of the present application;
FIG. 5 is a schematic flow chart diagram of a control method according to certain embodiments of the present application;
FIG. 6 is a schematic diagram of a connection state of a non-volatile computer readable storage medium and a processor of some embodiments of the present application.
Main element numbers:
the system comprises an energy storage system 100, a first control chip 20, a second control chip 30, a third control chip 40, a fourth control chip 50, an electricity storage module 60 and a controller local area network bus 70;
an electricity storage module 61, a battery pack 62, and a battery 63.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the embodiments of the present application.
Referring to fig. 1, a control method is provided in an embodiment of the present application. The control method comprises the following steps:
011: the first control chip 20 controls the work of the power storage module 60, and sends a holding signal to the second control chip 30 through the first control chip 20;
012: and within the preset time, if the second control chip 30 does not receive the holding signal, switching the second control chip 30 to control the work of the power storage module 60.
Referring to fig. 2, the present embodiment provides a control device 10. The control device 10 comprises a control module 11 and a switching module 12. The control method according to the embodiment of the present application is applicable to the control device 10. The control module 11 and the switching module 12 are configured to execute step 011 and step 012, respectively. That is, the control module 11 is configured to control the operation of the power storage module 60 through the first control chip 20, and send a holding signal to the second control chip 30 through the first control chip 20; the switching module 12 is configured to switch the second control chip 30 to control the power storage module 60 if the second control chip 30 does not receive the holding signal within a predetermined time period.
Referring to fig. 3, an energy storage system 100 is further provided in the present embodiment. The energy storage system 100 includes an energy storage module 60, a first control chip 20, and a second control chip 30. The control method according to the embodiment of the present application may be applied to the energy storage system 100. The first control chip 20 is used for controlling the work of the power storage module 60 and sending a holding signal to the second control chip 30; the second control chip 30 is used for controlling the operation of the power storage module 60 when the holding signal is not received within the predetermined time period. That is, the first control chip 20 can be used to execute step 011, and the second control chip 30 can be used to execute step 012.
Specifically, the energy storage system 100 includes a first control chip 20, a second control chip 30, a third control chip 40, a fourth control chip 50, an energy storage module 60, and a Controller Area Network (CAN) bus 70. The first control chip 20, the second control chip 30, the third control chip 40, the fourth control chip 50 and the power storage module 60 are all connected in communication through a controller area network bus 70.
It can be understood that, the first control chip 20 and the second control chip 30 are both in communication connection through the controller area network bus 70, and the wiring is relatively simple, so that when the standby second control chip 30 is newly added, the original wiring hardly needs to be changed, and the updating cost of the power storage system 100 is relatively low. In other embodiments, the first control chip 20 and the second control chip 30 may communicate via a Universal Asynchronous Receiver/Transmitter (UART); alternatively, the first controller chip 20 and the second controller chip 30 may communicate via an I2C bus (I2C), and the like.
The power storage module 60 includes a power storage module 61, the power storage module 61 includes a battery pack 62, and the battery pack 62 is composed of a plurality of batteries 63. The fourth control chip 50 is connected to the battery pack 62 to obtain information of the battery pack 62, so as to control the battery pack 62; the third control chip 40 is connected with the power storage module 61 to acquire information of the power storage module 61, so as to control the power storage module 61; the first control chip 20 and the second control chip 30 are both connected to the power storage module 60 to obtain information of the power storage module 60, so as to control the power storage module 60.
Therefore, compared with the case that all the information of the battery 63 is processed and controlled by the first control chip 20 or the second control chip 30, the efficiency is low, the hierarchical control is realized by using different control chips through the hierarchical structure of the electricity storage module 60, the control and processing efficiency of the electricity storage module 60 can be improved, all the function control is not required to be performed by the first control chip 20 or the second control chip 30 which are used as the main control, and the function control is performed by using the control chips of the corresponding levels, so that the power consumption of the function control is reduced.
In the initial state, the first control chip 20 is used to control the whole power storage module 60, for example, control the power storage module 60 to discharge, and when the charging interface is accessed, realize charging of the power storage module 60. When the first control chip 20 controls the power storage module 60, the first control chip 20 keeps keeping signals to the second control chip 30, so that the first control chip 20 always masters the control right of the power storage module 60.
When the first control chip 20 fails, it is difficult to continuously transmit the holding signal to the second control chip 30, and at this time, in order to prevent the power storage module 60 from having potential safety hazards (such as burning out, explosion, etc.), the second control chip 30 takes over the control right of the power storage module 60. The first control chip 20 and the second control chip 30 may be the same control chip, so that when the second control chip 30 takes over the control right of the power storage module 60, all functions of the first control chip 20 in controlling the power storage module 60 can be realized, thereby ensuring the safety and stability of the battery 63 system.
In another embodiment, the second control chip 30 may send a feedback signal to the first control chip 20 upon receiving the hold signal, and may determine that the second control chip 30 has a failure if the first control chip 20 does not receive the feedback signal, and may report a failure process to replace the second control chip 30. Therefore, the first control chip 20 and the second control chip 30 can be ensured to be always in a normal state through mutual communication between the first control chip 20 and the second control chip 30, and the safety of the power storage system is improved.
In the control method, the control device 10 and the energy storage system 100 according to the embodiment of the application, the first control chip 20 continuously sends the holding signal to the second control chip 30 to report that the first control chip 20 is always in the normal working state, at this time, the electricity storage module 60 is controlled by the first control chip 20 to normally work, however, when the second control chip 30 does not receive the holding signal sent by the first control chip 20 within the predetermined time period, it indicates that the first control chip 20 has a fault and cannot normally operate, therefore, at this time, the second control chip 30 is switched to control the work of the electricity storage module 60, so that the potential safety hazard caused by the runaway is prevented through the dual redundant control chips and the continuous communication between the two control chips, and the safety and the stability of the electricity storage module 60 are ensured.
Referring to fig. 2, 3 and 4, in some embodiments, the hold signal is a heartbeat signal, and the step 011 includes:
0111: the heartbeat signal is transmitted to the second control chip 30 through the first control chip 20 at a predetermined period.
In certain embodiments, the control module 11 is further configured to perform step 0111. Namely, the control module 11 is further configured to send a heartbeat signal to the second control chip 30 through the first control chip 20 according to a predetermined period.
In some embodiments, the first control chip 20 is further configured to perform step 0111. That is, the first control chip 20 is configured to send the heartbeat signal to the second control chip 30 through the first control chip 20 at a predetermined period.
Specifically, in order to reduce power consumption, when the first control chip 20 does not fail, a heartbeat signal is sent to the second control chip 30 according to a predetermined period, for example, a heartbeat signal is sent to the second control chip 30 every 1 second, or a heartbeat signal is sent to the second control chip 30 every 2 seconds, and the like. In addition, the predetermined time period may be set according to a predetermined period, for example, if the predetermined time period is equal to a time period corresponding to the predetermined period, and if the predetermined period is 5 seconds/time, the predetermined time period is 5 seconds.
Referring to fig. 2, fig. 3 and fig. 5, in some embodiments, the control method further includes:
013: receiving the signal generated by the power storage module 60 through the first control chip 20 to generate a first receiving signal, and receiving the signal generated by the power storage module 60 through the second control chip 30 to generate a second receiving signal;
014: and judging the fault conditions of the first control chip 20, the second control chip 30 and/or the power storage module 60 according to the first receiving signal and the second receiving signal.
In some embodiments, the control device 10 further comprises a generation module 13 and a determination module 14. The generation module 13 and the determination module 14 are further configured to perform step 013 and step 014, respectively. That is, the generating module 13 is configured to receive the signal generated by the power storage module 60 through the first control chip 20 to generate a first receiving signal, and receive the signal generated by the power storage module 60 through the second control chip 30 to generate a second receiving signal; the determining module 14 is configured to determine a fault condition of the first control chip 20, the second control chip 30 and/or the power storage module 60 according to the first receiving signal and the second receiving signal.
In some embodiments, the first control chip 20 and the second control chip 30 cooperate to perform step 013, and the first control chip 20 is configured to perform step 014. The first control chip 20 is used for receiving the signal generated by the power storage module 60 to generate a first receiving signal; the second control chip 30 receives the signal generated by the power storage module 60 to generate a second receiving signal; the first control chip 20 is further configured to determine a fault condition of the first control chip 20, the second control chip 30 and/or the power storage module 60 according to the first receiving signal and the second receiving signal.
Specifically, the first control chip 20 and the second control chip 30 may simultaneously receive signals generated by the power storage module 60 (for example, the fourth control chip 50 collects information of the battery pack 62 and sends the information to the third control chip 40, and the third control chip 40 sends information of the entire power storage module 61 to the first control chip 20 and the second control chip 30), such as information of the battery 63, and the first control chip 20 may generate a first receiving signal according to the signal generated by the power storage module 60; the second control chip 30 receives the signal generated by the power storage module 60 and can generate a second received signal; when the first control chip 20 and the second control chip 30 both operate normally, the first receiving signal and the second receiving signal are generally consistent, and when the first receiving signal and the second receiving signal are inconsistent (e.g., the signals are not the same), it indicates that a fault occurs in the first control chip 20 and/or the second control chip 30; when the first received signal and/or the second received signal is a null signal, that is, the power storage module 60 cannot generate a signal, it indicates that the power storage module 60 itself may have a fault and cannot normally transmit a signal. At this time, it is necessary to stop the power supply or discharge of the power storage module 60 and perform the detection of the first control chip 20, the second control chip 30 and the power storage module 60.
In addition, when the controller area network bus 70 is damaged, the first receiving signal and/or the second receiving signal may be a null signal, so that the controller area network bus 70 can be detected at the same time, the power storage system is ensured to be always in a normal state, and the safety of the power storage system is improved.
Referring to fig. 6, the present embodiment further provides a non-volatile computer-readable storage medium 200 containing a computer program 201. The computer program 201, when executed by the one or more processors 300, causes the one or more processors 300 to perform the control method of any of the embodiments described above. The processor 300 may be any one of the control chips (e.g., the first control chip 20, the second control chip 30, the third control chip 40, or the fourth control chip 50).
For example, referring to fig. 1, the computer program 201, when executed by the one or more processors 300, causes the processors 300 to perform the following control method:
011: the first control chip 20 controls the work of the power storage module 60, and sends a holding signal to the second control chip 30 through the first control chip 20;
012: and within the preset time, if the second control chip 30 does not receive the holding signal, switching the second control chip 30 to control the work of the power storage module 60.
For another example, referring to fig. 4, when executed by one or more processors 300, the computer program 201 causes the processors 300 to perform the following control method:
0111: the heartbeat signal is transmitted to the second control chip 30 through the first control chip 20 at a predetermined period.
Also for example, referring to fig. 5, the computer program 201, when executed by the one or more processors 300, causes the processors 300 to perform the following control method:
013: receiving the signal generated by the power storage module 60 through the first control chip 20 to generate a first receiving signal, and receiving the signal generated by the power storage module 60 through the second control chip 30 to generate a second receiving signal;
014: and judging the fault conditions of the first control chip 20, the second control chip 30 and/or the power storage module 60 according to the first receiving signal and the second receiving signal.
In the description herein, references to the description of "certain embodiments," "in one example," "exemplary," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
Although embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A control method, comprising:
the work of the power storage module is controlled through the first control chip, and a holding signal is sent to the second control chip through the first control chip;
and in a preset time, if the second control chip cannot receive the holding signal, switching the second control chip to control the work of the electricity storage module.
2. The control method according to claim 1, wherein the hold signal is a heartbeat signal, and the sending the hold signal to the second control chip by the first control chip comprises:
and sending the heartbeat signal to the second control chip through the first control chip according to a preset period.
3. The control method according to claim 1, characterized by further comprising:
receiving the signal generated by the power storage module through the first control chip to generate a first receiving signal, and receiving the signal generated by the power storage module through the second control chip to generate a second receiving signal;
and judging the fault condition of the first control chip, the second control chip and/or the power storage module according to the first receiving signal and the second receiving signal.
4. The control method according to claim 3, wherein the determining the fault condition of the first control chip, the second control chip and/or the power storage module according to the first receiving signal and the second receiving signal comprises:
and when the first receiving signal and the second receiving signal are inconsistent, determining that the first control chip and/or the second control chip have a fault.
5. The control method according to claim 3, wherein the determining the fault condition of the first control chip, the second control chip and/or the power storage module according to the first receiving signal and the second receiving signal further comprises:
and when the first receiving signal and/or the second receiving signal are/is a null signal, determining that the power storage module is in fault.
6. The control method according to claim 1, wherein the first control chip, the second control chip and the power storage module are connected by a controller area network bus.
7. A control device, characterized in that the control device comprises:
the control module is used for controlling the work of the electricity storage module through the first control chip and sending a holding signal to the second control chip through the first control chip;
and the switching module is used for switching the second control chip to control the work of the power storage module if the second control chip cannot receive the holding signal within a preset time.
8. An energy storage system is characterized by comprising an electricity storage module, a first control chip and a second control chip, wherein the first control chip is used for controlling the work of the electricity storage module and sending a holding signal to the second control chip; the second control chip is used for controlling the work of the power storage module when the holding signal is not received within the preset time.
9. The energy storage system of claim 7, wherein the power storage module comprises a power storage module, the power storage module comprises a battery pack, the energy storage system further comprises a third control chip and a fourth control chip, and the fourth control chip is connected with the battery pack to acquire information of one or more battery packs; the third control chip is connected with the electricity storage module to acquire the information of the electricity storage module.
10. A non-transitory computer-readable storage medium comprising a computer program that, when executed by a processor, causes the processor to perform the control method of any one of claims 1-6.
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