CN111083245A - Address allocation method, system and storage medium for grid connection of multiple batteries - Google Patents
Address allocation method, system and storage medium for grid connection of multiple batteries Download PDFInfo
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Abstract
The invention relates to the technical field of battery management, in particular to an address allocation method, a system and a storage medium for grid connection of a plurality of batteries, wherein the allocation method comprises the steps that a battery management control unit sends an address setting parameter to a battery directly connected with the battery management control unit; the current battery receiving the address setting parameters determines the address number of the current battery according to the address setting parameters, and writes the address number into an address storage area; the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower-level battery directly connected with the current battery; the above process is repeated until all of the series connected batteries are assigned a different address number. Compared with the existing method adopting the dial switch, the method does not need to add the dial switch on site, reduces the workload and the hardware cost, and simultaneously can not cause communication abnormity because a certain battery is omitted.
Description
Technical Field
The invention relates to the technical field of battery management, in particular to an address allocation method, system and storage medium for grid connection of multiple batteries.
Background
The BMS battery management system exists in each battery system for managing information of each battery module, including charge and discharge control, SOC calculation, protection, state monitoring, and the like. Since each battery module has a limited capacity, a plurality of battery modules are connected in parallel or in series to form a larger capacity battery system in many applications. This is that the BMSs of a plurality of battery modules need to communicate with each other to realize information interaction and charge-discharge control.
In the conventional communication connection among a plurality of battery modules BMS, each battery module needs to use a dial switch to generate a physical address. The dial switch is used to increase the workload of field installation, and if the dial switch is not used for connecting a plurality of batteries, communication among the battery modules is abnormal, and meanwhile, the risk of field installation is increased.
Disclosure of Invention
In order to solve the technical problems that the workload of installation is increased and the installation risk exists when a dial switch is adopted to allocate physical addresses to a plurality of grid-connected battery modules in the prior art, the embodiment provides an address allocation method, a system and a storage medium for grid connection of a plurality of batteries.
An address allocation method for grid connection of a plurality of batteries, comprising a battery management control unit, wherein when the plurality of batteries are connected in series, the plurality of batteries in series and the batteries are connected with the battery management control unit through a CAN bus or an RS485 bus, the address allocation method comprises the following steps:
issuing an initial address: the battery management control unit sends an address setting parameter to a battery directly connected with the battery management control unit;
address writing: the current battery receiving the address setting parameters determines the address number of the current battery according to the address setting parameters, writes the address number into an address storage area, and simultaneously sends the address number of the current battery to the battery management control unit;
generating address setting parameters: the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower battery directly connected with the current battery;
the above address writing and address setting parameter generating steps are repeated until all the batteries connected in series are assigned a different address number.
Furthermore, a plurality of battery interfaces are arranged on the battery management control unit, when the batteries are connected in series and in parallel, a plurality of batteries are connected in series on each battery interface to form a series loop, and address allocation is performed on each series loop in sequence until all the batteries are allocated with different address numbers.
Wherein the address setting parameter comprises a duty cycle and/or a frequency.
Wherein, the determining, by the current battery that receives the address setting parameter, the address number of the current battery according to the address setting parameter includes:
the current battery acquires the duty ratio and/or frequency in the address setting parameters, compares the duty ratio and/or frequency with a preset comparison table, and confirms the address number of the current battery; the comparison table is a relation comparison table of duty ratio and/or frequency and address number.
In an embodiment, the generating, by the current battery, a new address setting parameter according to the received address setting parameter and a preset address parameter generating method includes:
the current battery obtains the duty ratio or frequency in the received address setting parameters, and reduces or increases the current duty ratio or frequency by a preset adjustment amount to obtain a new duty ratio or frequency, wherein the new address setting parameters comprise the new duty ratio or frequency.
In another embodiment, the generating, by the current battery, a new address setting parameter according to the received address setting parameter and a preset address parameter generating method includes:
the current battery obtains the duty ratio and the frequency in the received address setting parameters, and reduces or increases the current duty ratio and the current frequency by preset adjustment amount to obtain new duty ratio and new frequency, wherein the new address setting parameters comprise the new duty ratio and the new frequency;
or the current battery acquires the duty ratio and the frequency in the received address setting parameters, the current duty ratio is reduced or increased by a first preset adjustment amount to obtain a new duty ratio, the current frequency is reduced or increased by a second preset adjustment amount to obtain a new frequency, and the new address setting parameters comprise the new duty ratio and the new frequency.
In another embodiment, the generating, by the current battery, a new address setting parameter according to the received address setting parameter and a preset address parameter generating method includes:
the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current duty ratio is reduced or increased by a preset adjustment amount, and a new duty ratio is obtained, wherein the new address setting parameters comprise the frequency and the new duty ratio.
In another embodiment, the generating, by the current battery, a new address setting parameter according to the received address setting parameter and a preset address parameter generating method includes:
the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current frequency is reduced or increased by a preset adjustment amount, and a new frequency is obtained, wherein the new address setting parameters comprise the duty ratio and the new frequency.
If the battery management control unit does not receive the address number sent by the battery within the preset time period, all the batteries connected in series are judged to be allocated to a different address number.
An address distribution system for grid connection of a plurality of batteries comprises a battery management control unit, wherein when the plurality of batteries are connected in series, the plurality of batteries in series and the batteries are connected with the battery management control unit through a CAN bus or an RS485 bus;
the battery management control unit is used for sending an address setting parameter to a battery directly connected with the battery management control unit;
the current battery receiving the address setting parameters is used for determining the address number of the current battery according to the address setting parameters, writing the address number into an address storage area, and simultaneously sending the address number of the current battery to the battery management control unit;
and the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower-level battery directly connected with the current battery.
When the batteries are connected in series and in parallel, the batteries are connected in series on each battery interface to form a series loop, and address allocation is carried out on each series loop in sequence until all the batteries are allocated with different address numbers.
Wherein the address setting parameters comprise duty cycle and/or frequency;
the determining, by the current battery that receives the address setting parameter, an address number of the current battery according to the address setting parameter includes:
the current battery acquires the duty ratio and/or frequency in the address setting parameters, compares the duty ratio and/or frequency with a preset comparison table, and confirms the address number of the current battery; the comparison table is a relation comparison table of duty ratio and/or frequency and address number.
A computer readable storage medium comprising a program executable by a processor to implement the method as described above.
According to the address allocation method for grid connection of multiple batteries in the embodiment, firstly, the battery management control unit sends an address setting parameter to the battery directly connected with the battery, the current battery receiving the address setting parameter determines the address number of the current battery according to the address setting parameter, writes the address number into the address storage area, and sends the address number of the current battery to the battery management control unit for storage. The current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower battery directly connected with the current battery. This is repeated a number of times until all the batteries in series are assigned a different address number, i.e. a physical address is obtained. Compared with the existing method adopting the dial switch, the method does not need to add the dial switch on site, reduces the workload and the hardware cost, and simultaneously can not cause communication abnormity because a certain battery is omitted.
Drawings
FIG. 1 is a flowchart of an address assignment method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a multi-cell series networking of an embodiment of the present application;
fig. 3 is a schematic diagram of a multi-battery series-parallel networking according to an embodiment of the present application.
Fig. 4 is a schematic diagram of a multi-cell parallel networking according to an embodiment of the present application.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The batteries in the embodiment of the invention are all battery modules, hereinafter referred to as batteries for short, and comprise a BMS battery management system for managing the information of the battery modules, including charge and discharge control, SOC calculation, protection, state monitoring and the like. Each battery comprises a signal input interface, a signal output interface and a CAN bus or RS485 bus interface, wherein the signal input interface is used for being connected with an energy storage machine or a superior battery, the signal output interface is used for being connected with a subordinate battery, and the CAN bus or RS485 bus interface is used for being connected with a BMCU and used for information gathering or state monitoring. According to the address allocation method for grid connection of multiple batteries, whether the battery is a first battery module is judged through the signal of the signal input interface or whether the signal is directly connected with the energy storage machine, namely the address of the first battery is written into a 1# battery after the judgment of the battery management control unit is finished; then the first battery sends a signal of fixed strategy frequency and duty ratio through an output interface, the packet signal CAN distinguish the address number by the duty ratio or the mode of frequency alone or combination, the next battery acquires address information according to the detected frequency and the duty ratio signal, after the address information is acquired, the next battery replies the battery management control unit through a CAN or RS485 bus to confirm that the address allocation is completed, and then sends a signal of frequency and duty ratio containing other address information to the other battery, so that the other battery acquires the address information and replies through the CAN or RS485 bus to confirm that the address allocation is completed; and analogizing in sequence until the addresses of all the batteries are not 0 and the address information sent by the last battery does not reply to the CAN or RS485 bus within a certain time, and then considering that the addresses of all the batteries are distributed.
In this embodiment, the first battery input interface is connected to the battery management control unit, and the first battery signal output interface is connected to the signal input interface of the second battery, and sequentially connected; the signal output interface of the nth battery module is connected to the signal input interface of the (n + 1) th battery, all batteries are connected according to the connection mode, and after the interfaces are connected, the power is switched on to carry out automatic address allocation networking on all battery modules.
The first embodiment is as follows:
referring to fig. 1, the present embodiment provides an address allocation method for grid connection of multiple batteries, including a battery management control unit for serial connection or serial-parallel connection of batteries, and others being battery slaves. As shown in fig. 2, when a plurality of batteries are connected in series, the plurality of batteries connected in series and the battery management control unit are connected through the CAN bus or the RS485 bus, so that the battery management control unit CAN acquire the state information of each battery through the CAN bus or the RS485 bus and monitor each battery in real time, or issue a control instruction to each battery for controlling the working parameter of each battery, the address allocation method of this embodiment includes:
step 101: and sending an initial address, and sending an address setting parameter to a battery directly connected with the Battery Management Control Unit (BMCU) by the BMCU. In this embodiment, the address setting parameters include a duty ratio and a frequency, and for example, the battery management control unit first transmits the address setting parameters with a duty ratio of 10% and a frequency of 1kHz to the battery directly connected thereto.
Step 102: and writing the address, namely determining the address number of the current battery receiving the address setting parameters according to the address setting parameters, writing the address number into an address storage area, and sending the address number to the battery management control unit. After the current battery receives address setting parameters with the duty ratio of 10% and the frequency of 1kHz sent by the battery management control unit, the duty ratio and the frequency in the parameters are compared with a preset comparison table, and then the address number of the current battery can be confirmed. The comparison table is a relation comparison table of duty ratio, frequency and address number, the comparison table is pre-stored in each battery, and the BMS of the battery can compare the received duty ratio and frequency with the comparison table, so that the address number corresponding to the current battery can be obtained. For example, in this embodiment, after receiving the address setting parameter, the battery directly connected to the battery management control unit compares the address setting parameter with a stored comparison table, obtains the address number of the battery as number 1, writes the address number into a physical address storage area of the battery, and sends the address number of the battery to the battery management control unit, and the battery management control unit stores the address number, so as to perform state monitoring and issue a control instruction on the battery in the following.
Step 103: and generating an address setting parameter, wherein the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower-level battery directly connected with the current battery.
The current battery further generates a new address setting parameter according to the received address setting parameter and a preset address parameter generation method, and the method comprises the following steps: the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current duty ratio and the frequency are increased by preset adjustment amount, and new duty ratio and frequency are obtained, wherein the new address setting parameters comprise the new duty ratio and the new frequency. For example, in this embodiment, after the current battery receives the address setting parameters with the duty ratio of 10% and the frequency of 1kHz, the frequency of 1kHz of the current setting parameters is kept unchanged, the duty ratio is increased from 10% to 15%, meanwhile, the duty ratio of 15% and the frequency of 1kHz form a new address setting parameter, and the new address setting parameter is sent to the next battery directly connected to the new address setting parameter. The lower battery directly connected with the battery receives the new address setting parameters, namely the occupied space is 15% and the frequency is 1kHz, the physical address of the battery is determined to be No. 2 after the new address setting parameters are compared with a stored comparison table of the battery, and the physical address of the battery is replied to the battery management control unit through a CAN or RS485 bus.
In other embodiments, the address setting parameter may also include only one of a duty cycle and a frequency, the current battery obtains the duty cycle or the frequency in the received address setting parameter, and reduces or increases the current duty cycle or frequency by a preset adjustment amount, for example, five percent, to obtain a new duty cycle or frequency, and the new duty cycle or frequency constitutes a new address setting parameter.
In another embodiment, the current battery further generates a new address setting parameter according to the received address setting parameter and a preset address parameter generation method, including:
the current battery obtains the duty ratio and the frequency in the received address setting parameters, and both the current duty ratio and the frequency are reduced or increased by preset adjustment amount to obtain new duty ratio and frequency, for example, both the duty ratio and the frequency are reduced by five percent, and the new duty ratio and the frequency form new address setting parameters. Or the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current duty ratio is reduced or increased by a first preset adjustment amount to obtain a new duty ratio, the current frequency is reduced or increased by a second preset adjustment amount to obtain a new frequency, the new address setting parameters comprise the new duty ratio and the new frequency, for example, the current duty ratio is reduced or increased by five percent, the current frequency is reduced or increased by three percent, and then the new duty ratio and the new frequency are obtained.
Step 104: the above address writing and address setting parameter generating steps are repeated until all the batteries connected in series are assigned a different address number. The last battery module output interface continues to send duty ratio/frequency signals, and no battery receives the duty ratio/frequency signals, so that the address numbers replied by the CAN or RS485 bus to the battery management control unit are not generated, if the battery management control unit does not receive the address numbers replied by the battery within a preset time period, the battery management control unit judges that the address allocation of the last battery is completed, specifically, if the battery management control unit does not receive the address numbers sent by the battery within 5 seconds, the battery management control unit judges that all batteries connected in series are allocated to different address numbers.
Further, as shown in fig. 3, when address allocation needs to be performed on a plurality of batteries connected in series and in parallel, when a plurality of battery interfaces are arranged on the battery management control unit, each battery interface can be connected in series with a plurality of batteries, the plurality of batteries connected in series on each battery interface form a series loop, and address allocation is performed on each series loop in sequence, as shown in fig. 3, address allocation is performed on the first column of batteries 01 to 0N connected on the first battery interface in sequence, and the allocation method is the same as that provided above. And when the first column is distributed, sequentially distributing the batteries 11 to 1N connected to the second battery interface, and so on until the address distribution is sequentially completed for the Nth column of batteries connected to the Nth battery interface. The method for allocating addresses to each row of batteries is the same as that described above, and is not described herein again.
Further, as shown in fig. 4, when a plurality of batteries are connected in parallel, there is no separate battery management control unit, and at this time, the battery directly connected to the energy storage machine is used as a master, each battery can be connected to the energy storage machine as a battery master, and the battery not connected to the energy storage machine is used as a battery slave. At this time, the battery directly connected to the energy storage machine is used as a master, the Battery Management System (BMS) thereof is used as a battery management control unit, the battery as the master can automatically set an address and then send the address to the slave directly connected thereto, and the address allocation method of each slave is the same as that in the above-mentioned series connection, and is not described herein again.
In this way, all the batteries connected in series and in parallel can be assigned a different address number. The battery management control unit can realize automatic networking of more batteries and implement state monitoring and control on a plurality of series-parallel batteries.
Example two
The embodiment provides an address distribution system for grid connection of a plurality of batteries, which comprises a battery management control unit, wherein when the plurality of batteries are connected in series, the plurality of batteries connected in series and the batteries are connected with the battery management control unit through a CAN bus or an RS485 bus; meanwhile, each battery is also provided with a PWM (pulse-width modulation) port, and two adjacent batteries are connected through a communication line between the PWM ports and used for sending duty ratio and frequency signals.
The battery management control unit is used for sending an address setting parameter to a battery directly connected with the battery management control unit;
the current battery receiving the address setting parameters is used for determining the address number of the current battery according to the address setting parameters, writing the address number into an address storage area, and simultaneously sending the address number of the current battery to a battery management control unit;
the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower-level battery directly connected with the current battery;
the above process is repeated in turn until each of all of the series-connected cells is assigned a different address number.
When the batteries are connected in series and in parallel, the batteries are connected in series on each battery interface to form a series loop, and address allocation is carried out on each series loop in sequence until all the batteries are allocated with different address numbers.
The address setting parameters of the present embodiment include a duty ratio and a frequency.
In this embodiment, determining, by the current battery whose address setting parameter is received by the current battery, an address number of the current battery according to the address setting parameter includes:
the current battery acquires the duty ratio and the frequency in the address setting parameters, compares the duty ratio and the frequency with a preset comparison table, and confirms the address number of the current battery; the comparison table is a relation comparison table of duty ratio and frequency and address number. The specific confirmation method is the same as that in embodiment 1, and is not described here again.
The current battery further generates a new address setting parameter according to the received address setting parameter and a preset address parameter generation method, and the method comprises the following steps: the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current duty ratio and the frequency are increased by preset adjustment amount, and new duty ratio and frequency are obtained, wherein the new address setting parameters comprise the new duty ratio and the new frequency. For example, in this embodiment, after the current battery receives the address setting parameters with the duty ratio of 10% and the frequency of 1kHz, the frequency of 1kHz of the current setting parameters is kept unchanged, the duty ratio is increased from 10% to 15%, meanwhile, the duty ratio of 15% and the frequency of 1kHz form a new address setting parameter, and the new address setting parameter is sent to the next battery directly connected to the new address setting parameter. The lower battery directly connected with the battery receives the new address setting parameters, namely the occupied space is 15% and the frequency is 1kHz, the physical address of the battery is determined to be No. 2 after the new address setting parameters are compared with a stored comparison table of the battery, and the physical address of the battery is replied to the battery management control unit through a CAN or RS485 bus.
In other embodiments, the address setting parameter may also include only one of a duty cycle and a frequency, the current battery obtains the duty cycle or the frequency in the received address setting parameter, and reduces or increases the current duty cycle or frequency by a preset adjustment amount, for example, five percent, to obtain a new duty cycle or frequency, and the new duty cycle or frequency constitutes a new address setting parameter.
In another embodiment, the current battery further generates a new address setting parameter according to the received address setting parameter and a preset address parameter generation method, including:
the current battery obtains the duty ratio and the frequency in the received address setting parameters, and both the current duty ratio and the frequency are reduced or increased by preset adjustment amount to obtain new duty ratio and frequency, for example, both the duty ratio and the frequency are reduced by five percent, and the new duty ratio and the frequency form new address setting parameters. Or the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current duty ratio is reduced or increased by a first preset adjustment amount to obtain a new duty ratio, the current frequency is reduced or increased by a second preset adjustment amount to obtain a new frequency, the new address setting parameters comprise the new duty ratio and the new frequency, for example, the current duty ratio is reduced or increased by five percent, the current frequency is reduced or increased by three percent, and then the new duty ratio and the new frequency are obtained.
After each battery receives the address setting parameters, a new address setting parameter is generated and sent to the next battery connected with the battery, if the battery management control unit does not receive the address number replied by the battery in a preset time period, the battery management control unit judges that the last battery address is completely distributed, specifically, in the embodiment, if the battery management control unit does not receive the address number sent by the battery within 5 seconds, all batteries connected in series are distributed to different address numbers.
All batteries connected in series and parallel can be assigned a different address number by the system of the present embodiment. The battery management control unit can realize automatic networking of more batteries and implement state monitoring and control on a plurality of series-parallel batteries.
EXAMPLE III
The present embodiment provides a computer-readable storage medium including a program that can be executed by a processor to implement the multi-battery grid-connected address assignment method as provided in the first embodiment.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. An address allocation method for grid connection of a plurality of batteries is characterized by comprising a battery management control unit, when the plurality of batteries are connected in series, the plurality of batteries in series and the batteries are connected with the battery management control unit through a CAN bus or an RS485 bus, and the address allocation method comprises the following steps:
issuing an initial address: the battery management control unit sends an address setting parameter to a battery directly connected with the battery management control unit;
address writing: the current battery receiving the address setting parameters determines the address number of the current battery according to the address setting parameters, writes the address number into an address storage area, and simultaneously sends the address number of the current battery to the battery management control unit;
generating address setting parameters: the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower battery directly connected with the current battery;
the above address writing and address setting parameter generating steps are repeated until all the batteries connected in series are assigned a different address number.
2. The address assignment method according to claim 1, wherein the battery management control unit is provided with a plurality of battery interfaces, when the plurality of batteries are connected in series and in parallel, a plurality of batteries are connected in series on each battery interface to form a series loop, and the address assignment is performed on each series loop in turn until all batteries are assigned with a different address number.
3. The address allocation method of claim 1, wherein the address setting parameters comprise duty cycle and/or frequency.
4. The address assignment method according to claim 3, wherein the determining, by the current battery that receives the address setting parameter, its own address number according to the address setting parameter comprises:
the current battery acquires the duty ratio and/or frequency in the address setting parameters, compares the duty ratio and/or frequency with a preset comparison table, and confirms the address number of the current battery; the comparison table is a relation comparison table of duty ratio and/or frequency and address number.
5. The address assignment method of claim 3, wherein the current battery further generating a new address setting parameter according to the received address setting parameter and a preset address parameter generation method comprises:
the current battery acquires the duty ratio or frequency in the received address setting parameters, and reduces or increases the current duty ratio or frequency by a preset adjustment amount to obtain a new duty ratio or frequency, wherein the new address setting parameters comprise the new duty ratio or frequency; alternatively, the first and second electrodes may be,
the current battery obtains the duty ratio and the frequency in the received address setting parameters, and reduces or increases the current duty ratio and the current frequency by preset adjustment amount to obtain new duty ratio and new frequency, wherein the new address setting parameters comprise the new duty ratio and the new frequency; alternatively, the first and second electrodes may be,
the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current duty ratio is reduced or increased by a first preset adjustment amount to obtain a new duty ratio, the current frequency is reduced or increased by a second preset adjustment amount to obtain a new frequency, and the new address setting parameters comprise the new duty ratio and the new frequency; alternatively, the first and second electrodes may be,
the current battery obtains the duty ratio and the frequency in the received address setting parameters, and reduces or increases the current duty ratio by a preset adjustment amount to obtain a new duty ratio, wherein the new address setting parameters comprise the frequency and the new duty ratio; alternatively, the first and second electrodes may be,
the current battery obtains the duty ratio and the frequency in the received address setting parameters, the current frequency is reduced or increased by a preset adjustment amount, and a new frequency is obtained, wherein the new address setting parameters comprise the duty ratio and the new frequency.
6. The address assigning method according to claim 1, wherein if the battery management control unit does not receive the address number transmitted from the battery within a preset time period, it is determined that all the batteries connected in series are assigned to a different address number.
7. An address distribution system for grid connection of a plurality of batteries is characterized by comprising a battery management control unit, wherein when the plurality of batteries are connected in series, the plurality of batteries in series and the batteries are connected with the battery management control unit through a CAN bus or an RS485 bus;
the battery management control unit is used for sending an address setting parameter to a battery directly connected with the battery management control unit;
the current battery receiving the address setting parameters is used for determining the address number of the current battery according to the address setting parameters, writing the address number into an address storage area, and simultaneously sending the address number of the current battery to the battery management control unit;
and the current battery also generates a new address setting parameter according to the received address setting parameter and a preset address parameter generating method, and sends the new address setting parameter to a lower-level battery directly connected with the current battery.
8. The address assignment system according to claim 7, wherein the battery management control unit is provided with a plurality of battery interfaces, when the plurality of batteries are connected in series and in parallel, a plurality of batteries are connected in series on each battery interface to form a series loop, and address assignment is performed on each series loop in turn until all batteries are assigned with a different address number.
9. The address assignment system of claim 7, wherein the address setting parameters include a duty cycle and/or a frequency;
the determining, by the current battery that receives the address setting parameter, an address number of the current battery according to the address setting parameter includes:
the current battery acquires the duty ratio and/or frequency in the address setting parameters, compares the duty ratio and/or frequency with a preset comparison table, and confirms the address number of the current battery; the comparison table is a relation comparison table of duty ratio and/or frequency and address number.
10. A computer-readable storage medium, characterized by comprising a program executable by a processor to implement the method of any one of claims 1-6.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113659658A (en) * | 2021-07-27 | 2021-11-16 | 量道(深圳)储能科技有限公司 | Battery management device and data interaction method |
| CN114336842A (en) * | 2021-12-28 | 2022-04-12 | 苏州古顶能源科技有限公司 | Parallel operation address intelligent distribution method and storage medium |
| CN115208855A (en) * | 2022-06-10 | 2022-10-18 | 岳阳耀宁新能源科技有限公司 | Multi-machine communication automatic addressing system and method for battery pack of communication base station |
| CN115277629A (en) * | 2022-06-22 | 2022-11-01 | 岳阳耀宁新能源科技有限公司 | Multi-machine communication non-inductive addressing method for battery pack of communication base station |
| CN116130804A (en) * | 2022-12-30 | 2023-05-16 | 安徽固太新能源有限公司 | Battery management system for energy storage system |
| CN117478638A (en) * | 2023-12-28 | 2024-01-30 | 南京零探智能科技有限公司 | Addressing method and system for battery management system equipment |
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| CN112422704A (en) * | 2020-09-27 | 2021-02-26 | 量道(深圳)储能科技有限公司 | Address allocation method and device for multiple devices and storage medium |
| CN112422704B (en) * | 2020-09-27 | 2023-04-18 | 量道(深圳)储能科技有限公司 | Address allocation method and device for multiple devices and storage medium |
| CN113659658A (en) * | 2021-07-27 | 2021-11-16 | 量道(深圳)储能科技有限公司 | Battery management device and data interaction method |
| CN114336842A (en) * | 2021-12-28 | 2022-04-12 | 苏州古顶能源科技有限公司 | Parallel operation address intelligent distribution method and storage medium |
| CN115208855A (en) * | 2022-06-10 | 2022-10-18 | 岳阳耀宁新能源科技有限公司 | Multi-machine communication automatic addressing system and method for battery pack of communication base station |
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| CN116130804A (en) * | 2022-12-30 | 2023-05-16 | 安徽固太新能源有限公司 | Battery management system for energy storage system |
| CN116130804B (en) * | 2022-12-30 | 2024-04-09 | 安徽固太新能源有限公司 | Battery management system for energy storage system |
| CN117478638A (en) * | 2023-12-28 | 2024-01-30 | 南京零探智能科技有限公司 | Addressing method and system for battery management system equipment |
| CN117478638B (en) * | 2023-12-28 | 2024-03-26 | 南京零探智能科技有限公司 | Addressing method and system for battery management system equipment |
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