CN211151596U - Multithreading-based energy distribution system - Google Patents
Multithreading-based energy distribution system Download PDFInfo
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- CN211151596U CN211151596U CN201921957560.0U CN201921957560U CN211151596U CN 211151596 U CN211151596 U CN 211151596U CN 201921957560 U CN201921957560 U CN 201921957560U CN 211151596 U CN211151596 U CN 211151596U
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Abstract
The utility model belongs to the field of electronic equipment, and discloses an energy distribution system based on multithreading, which comprises an AC/DC power module, a direct current bus and a plurality of battery loads, wherein the direct current bus comprises a direct current positive bus and a direct current negative bus; one end of the direct current positive bus is connected with the AC/DC power module, and the other end of the direct current positive bus is connected with the positive electrodes of the plurality of groups of battery loads; one end of the direct current negative bus is connected with the AC/DC power module, and the other end of the direct current negative bus is connected with the negative electrodes of the plurality of groups of battery loads; and a switch assembly is arranged between the battery load and the direct current positive bus or the direct current negative bus, and the switch assembly is connected with the AC/DC power module. The total power of the system is configured according to the maximum battery load power, the sum of all load powers does not need to be considered, only one AC/DC power module needs to be configured, the size of equipment can be reduced or the load capacity can be increased, the installation space is further reduced, the cost is saved, the resource utilization rate is improved, the wiring is simple and convenient, the structure is clear, the flexibility of charging and discharging of the system is increased, and the power distribution of the AC/DC power module is balanced.
Description
Technical Field
The utility model belongs to the electronic equipment field relates to an energy distribution system based on multithreading.
Background
With the development of power utilization technology, in numerous electronic devices, batteries or battery packs and battery packs are used for supplying power, so that the electronic devices get rid of the power of wired power supplies, and the application range of the electronic devices is expanded. At present, due to the limitation of battery capacity, the battery has to be charged and discharged frequently.
Referring to fig. 1, a large-power charging and discharging device under the existing battery charging and discharging structure needs to be configured with a plurality of groups of AC/DC power modules to respectively complete charging and discharging of a battery, resulting in large volume, high cost, long charging and discharging time and low efficiency of the large-power charging and discharging device. Furthermore, under the existing battery charging and discharging structure, referring to fig. 2, at the same time, a plurality of groups of low-power batteries need to be charged and discharged simultaneously, resulting in the following disadvantages: 1. the power configuration needs to be configured according to the maximum power of the load, so that the total power of the system is overlarge; 2. the power modules are configured according to the channels, so that excessive space is occupied, and the installation difficulty is increased; 3. excessive modules, excessive total power, and excessive installation space create high costs; 4. in actual use, all channels do not operate simultaneously, so that the total power of the system cannot be effectively utilized, the efficiency is low, and the charging and discharging completion time is long; 5. in single-phase power supply, since not all battery loads operate simultaneously, not all battery loads are in accordance with power, resulting in unbalanced power distribution. In summary, the conventional battery charging/discharging structure has not been able to satisfy the current demand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome among the above-mentioned prior art high-power charge-discharge apparatus self bulky, and the shortcoming of charge-discharge in-process energy availability factor low, provide an energy distribution system based on multithread.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
an energy distribution system based on multithreading comprises an AC/DC power module, a direct current bus and a plurality of groups of battery loads, wherein the direct current bus comprises a direct current positive bus and a direct current negative bus;
one end of the direct current positive bus is connected with the AC/DC power module, and the other end of the direct current positive bus is connected with the positive electrodes of the plurality of groups of battery loads; one end of the direct current negative bus is connected with the AC/DC power module, and the other end of the direct current negative bus is connected with the negative electrodes of the plurality of groups of battery loads; and a switch assembly is arranged between the battery load and the direct current positive bus or the direct current negative bus, and the switch assembly is connected with the AC/DC power module.
The utility model discloses further improvement lies in:
the system comprises a system cabinet, wherein the AC/DC power module, the DC bus and a plurality of groups of battery loads are arranged in the system cabinet.
The system further comprises an upper computer, the upper computer is connected with the AC/DC power module, and the upper computer is used for setting the address of each group of battery loads, the charging and discharging priority of each group of battery loads and the one-time charging and discharging duration of each group of battery loads and sending the addresses, the charging and discharging priority and the one-time charging and discharging duration to the AC/DC power module.
The AC/DC power module is the same as the most powerful of all battery loads.
The switch assembly is a high-voltage relay.
The high-voltage relay is integrated inside the battery load.
The power supply system also comprises a power divider, one end of the power divider is connected with the AC/DC power module, and the other end of the power divider is connected with the battery management systems of all the battery loads.
The power splitter is integrated inside an AC/DC power module.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses energy distribution system connects a plurality of groups battery load in parallel in the one end of AC/DC power module through the direct current bus, sets up the switch module between battery load and direct current positive bus or direct current negative bus, and the switch module is connected with AC/DC power module, through AC/DC power module control switch module's intercommunication and disconnection. Only one AC/DC power module is required to be arranged in the whole energy distribution system, so that the installation space is reduced; compared with the existing charging and discharging scheme, the required number of modules is small, the whole volume is small, so that the required installation space is small, the cost is saved, and the resource utilization rate is improved; the parallel connection of a plurality of groups of battery loads and the AC/DC power module only needs to be realized through the direct current positive bus and the direct current negative bus, the wiring is simple and convenient, and the structure is clear; through the connection and disconnection of the switch assembly, the switching-in and switching-out of the charging and discharging of the battery loads can be realized, the charging and discharging flexibility of the energy distribution system is further improved, the charging and discharging of only one battery load at the same time can be realized, and the battery load power is balanced.
Furthermore, the power of the AC/DC power module is the same as that of the battery load with the maximum power in all the battery loads, the total power of the energy distribution system is configured according to the maximum battery load power, the sum of the power of all the battery loads does not need to be considered, only one group of battery loads are charged and discharged at the same time point, and the AC/DC power module works at full power, so that effective utilization can be achieved.
Furthermore, a power divider is arranged, the AC/DC power module is controlled by the power divider to configure proper power for each group of battery loads, battery loads with various power sizes can be adapted, and battery load power can be flexibly configured.
Drawings
FIG. 1 is a prior art power distribution circuit topology;
FIG. 2 is a timing diagram of energy distribution in the prior art;
fig. 3 is a topology diagram of an energy distribution circuit in an example of the present invention;
fig. 4 is a timing diagram of energy distribution in an example of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 3, the utility model discloses energy distribution system based on multithread, including system rack, AC/DC power module, direct current bus, power divider, host computer and a plurality of group battery loads, direct current bus includes direct current positive bus and direct current negative bus.
One end of the direct current positive bus is connected with the AC/DC power module, and the other end of the direct current positive bus is connected with the positive electrodes of the plurality of groups of battery loads; one end of the direct current negative bus is connected with the AC/DC power module, and the other end of the direct current negative bus is connected with the negative electrodes of the plurality of groups of battery loads; a switch assembly is arranged between the battery load and the direct current positive bus or the direct current negative bus, and the switch assembly is connected with the AC/DC power module; the switch component selects a high-voltage relay, one end of the high-voltage relay is connected with the battery, and the other end of the high-voltage relay is connected with the direct-current positive bus or the direct-current negative bus and used for disconnecting or connecting the direct-current positive bus or the direct-current negative bus with the battery load, or the high-voltage relay can be directly integrated in the battery load. The AC/DC power module, the direct current bus and the plurality of groups of battery loads are all arranged inside the system cabinet, and the AC/DC power module, the direct current bus and the plurality of groups of battery loads are stored and protected through the system cabinet.
The connection and disconnection of the high-voltage relay are controlled through the AC/DC power module, and the connection and disconnection of the battery load are realized through the connection and disconnection of the high-voltage relay. The upper computer distributes addresses to different battery loads, the battery loads and the connected high-voltage relay share one address, the charging and discharging priority is set through the addresses, and the charging and discharging priority can be set manually or automatically. The one-time charge and discharge time or the total charge and discharge time of the battery load is realized by setting the disconnection and connection time of the high-voltage relay. After the system wiring is completed, the charging and discharging duration can be manually or automatically set through the upper computer. After the system works, charging and discharging are carried out in a plurality of battery loads in a high-frequency cycle mode, multiple threads are operated simultaneously, and charging and discharging requirements are met.
The power distributor is connected with a battery management system BMS of the battery load, determines the charge and discharge power of the battery load, controls the AC/DC power module to distribute proper power to the battery load through the power distributor, can adapt to the battery loads with various power sizes, and is flexibly configured. Alternatively, the power splitter may be integrated directly inside the power module.
The power of the AC/DC power module is the same as that of the battery load with the maximum power. That is, the AC/DC power module is configured according to the energy demand; the AC/DC power module is configured according to the highest power of the load batteries, only one group of batteries are charged and discharged at the same time point, and the AC/DC power module works at full power, so that effective utilization can be achieved. According to the direct current bus structure, wiring is completed, only one group of AC/DC power modules are needed, extra power modules do not need to be matched, a plurality of groups of battery loads do not need to be installed in channels, and the battery loads are installed in parallel completely, so that the installation space is reduced, and the volume of an energy distribution system can be reduced or the battery load capacity can be increased.
If the battery load is fully charged or emptied in the charging and discharging process, the battery load in the fully charged or emptied state can be automatically cut out, the segmentation time is automatically adjusted, the power distributor calculates the time length required by one-time charging and discharging of each group of battery loads according to the battery information provided by the battery BMS and the charging and discharging priority set by the upper computer, then a control instruction is issued according to the calculated time length, the charging and discharging of the rest battery loads are completed, and the charging efficiency is improved. If charging and discharging are required to be completed quickly aiming at a certain specific battery load, the segmentation duration of the corresponding battery load can be adjusted, and priority setting is completed to meet the requirement.
The utility model discloses energy distribution system's specific process, including following step:
step 1: and distributing addresses to each group of battery loads, and setting the total charging and discharging duration.
Step 2: setting one-time charging and discharging duration of each group of battery loads according to the battery load addresses; if charging and discharging are required to be completed quickly aiming at a certain specific load, the segment duration and the charging and discharging sequence of the corresponding load can be adjusted, and priority setting is completed to meet the requirement.
And step 3: and connecting the switch components of the current battery load, wherein the connection time is the one-time charging and discharging duration corresponding to the current battery load address, and the switch components of the rest battery loads are disconnected.
And 4, step 4: sequentially carrying out step 3 on each group of battery loads; if the load is fully charged or emptied in the charging and discharging process, the load in the fully charged or emptied state can be automatically switched out, the segmented time is automatically adjusted, the charging and discharging of the rest load are completed, and the charging efficiency is improved.
And 5: and repeating the steps 3 and 4 until the total charging and discharging time is reached.
The method comprises the steps that addresses are distributed to each group of battery loads, accurate control over switching-in and switching-out of each group of battery loads is achieved, the switch assemblies of the current battery loads are connected, the connection time is one-time charging and discharging duration corresponding to the current battery load address, the switch assemblies of the rest battery loads are disconnected, charging and discharging of only one battery load at the same time are achieved, and charging and discharging power of the battery loads is balanced; meanwhile, the one-time charging and discharging time of each group of battery loads is set according to the battery load addresses, and charging and discharging are carried out at different periods, so that the situation that the temperature of the battery load is too high due to continuous charging and discharging of the same battery load, the charging and discharging have to be stopped to wait for the temperature reduction, and further the charging and discharging time is prolonged can be prevented, the charging efficiency is improved, and the total charging and discharging time is effectively shortened. The priority of charging and discharging of the battery load is set according to the address of the battery load, and charging and discharging are carried out in the sequence from high to low according to the priority of charging and discharging of the battery load, so that rapid charging and discharging of a certain specific battery load can be completed.
Examples
In the embodiment, four groups of battery loads are selected, the battery loads are generally selected according to requirement analysis, system requirement definition is obtained, and selection is completed, so that a designer does not need to face the design difficulty and complexity of requirements, the total power required by the battery loads is calculated, a proper AC/DC power module is selected, the power of the AC/DC power module is the same as that of the maximum battery load, power calculation for each group of battery loads is not needed, how to balance each group of battery loads is not needed to be considered, and the method is not limited to hardware installation size.
According to the wiring shown in fig. 3, an AC/DC power module is provided which can meet the power size requirement; and 4 groups of battery loads are connected to an output bus of the AC/DC power module to complete wiring, and the battery management system BMS of each group of battery loads is connected with the AC/DC power module to complete communication with the battery loads. The AC/DC power module is in protocol communication with a battery management system BMS, the battery management system BMS provides information of a battery pack and a battery cell to the AC/DC power module, the information comprises SOC, voltage, required voltage and current during charging, maximum allowable voltage and current of the battery, rated capacity and the like, and the AC/DC power module issues a control instruction to control the on-off of a high-voltage relay of a battery load.
The battery load dynamic switching access system is realized by controlling the disconnection and the connection of the high-voltage relay. See FIG. 4, at 0 to t0At all times, the system setting is completed and the system is started; at t0To t1At the moment, the high-voltage relay connected with the battery load BAT1 is connected, and the other high-voltage relays are disconnected, so that the charging and discharging operation of the battery load BAT1 is realized; at t1To t2At the moment, the high-voltage relay connected with the battery load BAT2 is connected, and the other high-voltage relays are disconnected, so that the charging and discharging operation of the battery load BAT2 is realized; at t2To t3At the moment, the high-voltage relay connected with the battery load BAT3 is connected, and the other high-voltage relays are disconnected, so that the charging and discharging operation of the battery load BAT3 is realized; at t3To t4At the moment, the high-voltage relay connected with the battery load BAT4 is connected, and the other high-voltage relays are disconnected, so that the charging and discharging operation of the battery load BAT4 is realized; i.e. t0To t4Completing a charge-discharge cycle all the time, completing one charge-discharge to all the battery loads, and completing t repeatedly0To t4The charge and discharge cycle is carried out at any time to complete the designed charge and discharge function of the whole system, and obviously, if the number of the accessed battery loads is not consistent with the number shown in the example, the time-sharing time interval can be adjusted to complete the operation of all the battery loads.
The utility model discloses energy distribution system based on multithread compares with current battery charge-discharge structure, has following advantage: 1. the total power of the system is configured according to the maximum battery load power without considering the sum of all battery load powers. 2. Only one AC/DC power module is required to be arranged in the system, so that the installation space is reduced; the system volume can be reduced or the battery load capacity can be increased; 3. the wiring is simple and convenient, and the structure is clear; 4. compared with the existing charging and discharging structure, the system has small volume, reasonable application of power and small requirement on installation space, thereby saving the cost and improving the resource utilization rate; 5. the battery loads with various power sizes can be adapted, and flexible configuration is realized; 6. the flexibility of charging and discharging is increased, and the battery load is balanced.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (8)
1. An energy distribution system based on multithreading is characterized by comprising an AC/DC power module, a direct current bus and a plurality of groups of battery loads, wherein the direct current bus comprises a direct current positive bus and a direct current negative bus;
one end of the direct current positive bus is connected with the AC/DC power module, and the other end of the direct current positive bus is connected with the positive electrodes of the plurality of groups of battery loads; one end of the direct current negative bus is connected with the AC/DC power module, and the other end of the direct current negative bus is connected with the negative electrodes of the plurality of groups of battery loads; and a switch assembly is arranged between the battery load and the direct current positive bus or the direct current negative bus, and the switch assembly is connected with the AC/DC power module.
2. The multithreading-based energy distribution system of claim 1, further comprising a system cabinet, wherein the AC/DC power module, the DC bus, and the plurality of sets of battery loads are disposed inside the system cabinet.
3. The multithreading-based energy distribution system of claim 1, further comprising an upper computer, wherein the upper computer is connected with the AC/DC power module, and the upper computer is configured to set an address of each group of battery loads, a charging and discharging priority of each group of battery loads, and a charging and discharging duration of each group of battery loads and send the addresses, the charging and discharging priorities, and the charging and discharging durations to the AC/DC power module.
4. The multithreading-based energy distribution system of claim 1, wherein the AC/DC power module is the same power as the most powerful of all battery loads.
5. The multithreading-based energy distribution system of claim 1, wherein the switch component is a high voltage relay.
6. The multithreading-based energy distribution system of claim 5, wherein the high voltage relay is integrated within a battery load.
7. The multithreading-based energy distribution system of claim 1, further comprising a power splitter connected at one end to the AC/DC power module and at another end to the battery management system for all battery loads.
8. The multithreading-based energy distribution system of claim 7, wherein the power splitter is integrated within an AC/DC power module.
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| CN201921957560.0U CN211151596U (en) | 2019-11-13 | 2019-11-13 | Multithreading-based energy distribution system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110829554A (en) * | 2019-11-13 | 2020-02-21 | 西安班特利奥能源科技有限公司 | Multithreading-based energy distribution system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829554A (en) * | 2019-11-13 | 2020-02-21 | 西安班特利奥能源科技有限公司 | Multithreading-based energy distribution system and method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An energy distribution system based on Multithreading Effective date of registration: 20211021 Granted publication date: 20200731 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN E-BTLA ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2021990000989 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220711 Granted publication date: 20200731 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN E-BTLA ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2021990000989 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An energy distribution system based on Multithreading Effective date of registration: 20220721 Granted publication date: 20200731 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN E-BTLA ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2022610000429 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230815 Granted publication date: 20200731 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN E-BTLA ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2022610000429 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |