CN210608606U - Cascade battery system - Google Patents
Cascade battery system Download PDFInfo
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- CN210608606U CN210608606U CN201921698049.3U CN201921698049U CN210608606U CN 210608606 U CN210608606 U CN 210608606U CN 201921698049 U CN201921698049 U CN 201921698049U CN 210608606 U CN210608606 U CN 210608606U
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Abstract
The utility model relates to a cascade battery system, including the group battery, cascade battery management system, wherein the group battery is a plurality of, cascade battery management system is by the system control unit, voltage conversion the control unit is constituteed, the system control unit passes through power and control pencil connection voltage conversion the control unit, the system control unit passes through CAN1 bus and connects each group battery respectively, control system provides the power in the group battery through the power cord simultaneously, the group battery is through establishing ties, parallelly connected or the cluster is connected to voltage conversion the control unit after parallelly connected the combination. The battery systems with different purposes can be freely combined according to the actual application requirements to adapt to different application scenes.
Description
Technical Field
The utility model belongs to the battery field relates to a cascade battery system.
Background
Battery systems, in particular for use in uninterruptible power supplies, energy storage devices, electric vehicles, should be designed such that they can meet the requirements of uninterruptible power supplies, energy storage devices, electric vehicles with regard to the energy available and the voltage available for use.
In order to enable the battery system capable of being controlled to meet energy and voltage requirements in different application scenarios, a corresponding battery management system combination strategy is required to combine related battery system modules and operate according to application requirements through a corresponding management architecture. In the low-voltage operating mode, only low-voltage power supply to the load is possible, and in the high-voltage operating mode, only high-voltage power supply to the load is possible.
The battery system also includes a battery management system for operating the low voltage battery system and the high voltage battery system according to a combined strategy of current load usage needs and battery modules. In this case, the battery management system, in addition to the hardware control circuit module units of the respective multilayer structure, also has corresponding software with methods for operating the corresponding battery management system and battery system.
The conventional battery management system and the battery system using the conventional battery management system can be preferably applied to a general direct current UPS and an alternating current UPS with lower discharging requirements. When a high-voltage direct-current UPS and an alternating-current UPS with high discharge power requirements use a traditional battery management system to manage a lithium battery system, the problems that high charge and discharge currents cannot be effectively controlled, high-voltage current collection interference is serious, higher voltage and higher capacity are difficult to expand and the like often exist.
Disclosure of Invention
According to the utility model discloses, can be through the modularization battery management system of multilayer management system and structure, can effectual messenger adopt this battery management system's battery system work in above-mentioned UPS environment, can be applicable to in the alternating current-direct current UPS power supply system of traditional low-voltage, also can use in the alternating current-direct current UPS of novel high voltage, can also be used to in all kinds of large-scale energy storage type power supply system. The system can well meet the requirements of effective control of high charging and discharging currents, stable acquisition of high voltage and current, anti-interference capability, convenience and rapidness for expanding the capacity of the power supply voltage from low to high and almost unlimited capacity of the power supply systems.
A cascade battery system comprises a plurality of battery packs and a cascade battery management system, wherein the battery packs are connected, the cascade battery management system consists of a system control unit and a voltage conversion control unit, the system control unit is connected with the voltage conversion control unit through a power supply and a control wire harness, the system control unit is respectively connected with the battery packs through CAN1 buses, meanwhile, the power supply is provided for the control system in the battery packs through power lines, and the battery packs are connected to the voltage conversion control unit after being connected in series, in parallel or in series-parallel combination.
The system control unit is also connected with the display terminal control unit through a power supply and a serial port line.
The system control unit is also connected with an upper system through a bus.
A system control unit can be matched with eight battery packs at most, a high-voltage main control unit is arranged in each battery pack, and the high-voltage main control unit is directly connected with the system control unit through a connector and a cable.
After two battery packs are connected in series, the two battery packs are connected in parallel with the other two battery packs in series to be connected into a voltage conversion control unit. The system may comprise several system control units.
The utility model discloses in adopt multilayer management system and structural design, can realize specific battery management system according to the practical application condition makes up. Each module has an independent software system in addition to an independent hardware design and circuitry, and can implement independent processing logic and algorithms. And the hardware connection interface, the software communication protocol and the operation control parameter among the modules cooperate to complete more complex battery management logic and application, so as to realize battery systems with different voltage requirements.
The multi-layer management system and the multi-layer management structure can freely combine battery management systems with different purposes according to actual application needs to adapt to battery systems with different application scenes.
The data bus is self-adaptive, and the secondary development cost of the battery management system in practical application can be reduced.
The structural configuration can be quickly adjusted according to the use requirement, and the functional adjustment of the battery management system is realized.
The usage is extensive, adopts the utility model discloses a battery management system of design and the battery system who has this kind of battery management system can extensively be applicable to UPS, energy storage system, electric tool, electric motor car etc..
Drawings
Fig. 1 is a schematic diagram of a two series two parallel configuration of a tandem battery system.
Reference numerals: 1-1, a battery pack; 1-2, a battery pack; 2-1, a battery pack; 2-2, a battery pack; 23. a cascade battery management system; 36. A system control unit; 2. A communication bus; 5. collecting the wire harness at high voltage; 6. a 12V power supply and a serial port wiring harness; 9. a power supply and a control harness; 39. And a display terminal control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail by the accompanying drawings and specific embodiments.
A cascade battery system comprises a plurality of battery packs and a cascade battery management system, wherein the battery packs are connected, the cascade battery management system consists of a system control unit and a voltage conversion control unit, the system control unit is connected with the voltage conversion control unit through a power supply and a control wire harness, the system control unit is respectively connected with the battery packs through CAN1 buses, meanwhile, the power supply is provided for the control system in the battery packs through power lines, and the battery packs are connected to the voltage conversion control unit after being connected in series, in parallel or in series-parallel combination.
The system control unit is also connected with the display terminal control unit through a power supply and a serial port line.
The system control unit is also connected with an upper system through a bus, and the upper system can be an upper computer but is not limited to the upper computer.
A system control unit 36 can be collocated with eight battery packs at most, a high-voltage main control unit 35 is arranged in the battery packs, and the high-voltage main control unit 35 is directly connected with the system control unit 36 through a connector and a cable.
After two battery packs are connected in series, the two battery packs are connected in parallel with the other two battery packs in series to be connected into a voltage conversion control unit.
The rated voltage and the rated capacity of each group of the battery pack 1 are the same, namely the rated voltage DC220V and the rated capacity 25Ah, and the rated voltage DC440V and the rated capacity 50Ah of a series-2 post-cascade battery system are assumed.
The battery management system 20 establishes a plurality of communication buses, and automatically identifies the current combination mode by scanning ID information reported by different control units mounted on the communication buses.
In other embodiments of this patent, the battery pack connection may take the form of, but is not limited to:
1. and after four battery packs are connected in series, the four battery packs are connected with another four battery packs in series in parallel to be connected into a voltage conversion control unit.
2. The two battery packs are connected in series and then connected to the voltage conversion control unit.
3. The two battery packs are connected in parallel to a voltage conversion control unit.
4. And the four groups of two battery packs are connected in series and then are connected in parallel to the voltage conversion control unit.
Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A cascade battery system comprises a plurality of battery packs and a cascade battery management system, and is characterized in that: the cascade battery management system consists of a system control unit and a voltage conversion control unit, wherein the system control unit is connected with the voltage conversion control unit through a power supply and a control wire harness, the system control unit is respectively connected with each battery pack through a CAN1 bus, meanwhile, the power supply is provided for the control system in the battery pack through a power line, and the battery packs are connected to the voltage conversion control unit after being connected in series, in parallel or in series-parallel combination.
2. The tandem battery system of claim 1, wherein: the system control unit is also connected with the display terminal control unit through a power supply and a serial port line.
3. The tandem battery system of claim 1, wherein: the system control unit is also connected with an upper system through a bus.
4. The tandem battery system of claim 1, wherein: the single system control unit can be matched with eight battery packs at most, a high-voltage main control unit is arranged in each battery pack, and the high-voltage main control unit is directly connected with the system control unit through a connector and a cable.
5. The tandem battery system of claim 1, wherein: the battery pack combination is that two battery packs are connected in series and then connected in parallel with the other two battery packs in series to be connected into a voltage conversion control unit.
6. The tandem battery system of claim 5, wherein: the system includes a plurality of system control units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921698049.3U CN210608606U (en) | 2019-10-11 | 2019-10-11 | Cascade battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921698049.3U CN210608606U (en) | 2019-10-11 | 2019-10-11 | Cascade battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210608606U true CN210608606U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921698049.3U Active CN210608606U (en) | 2019-10-11 | 2019-10-11 | Cascade battery system |
Country Status (1)
| Country | Link |
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| CN (1) | CN210608606U (en) |
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2019
- 2019-10-11 CN CN201921698049.3U patent/CN210608606U/en active Active
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