CN215527890U - Parallel energy storage system - Google Patents
Parallel energy storage system Download PDFInfo
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- CN215527890U CN215527890U CN202023008702.4U CN202023008702U CN215527890U CN 215527890 U CN215527890 U CN 215527890U CN 202023008702 U CN202023008702 U CN 202023008702U CN 215527890 U CN215527890 U CN 215527890U
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- battery
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- energy storage
- storage system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A parallel energy storage system comprises a parallel battery pack formed by connecting a plurality of battery units in parallel, wherein each battery unit is a battery branch formed by connecting a plurality of single batteries in parallel; in the utility model, when the single battery fails, only the battery needs to be directly extracted, and the normal work of the battery unit and the system is not influenced; the maintained or replaced battery only needs to ensure that the electric quantity is approximately consistent with the rest batteries, and much time is not needed for balancing; the whole battery system is only connected in parallel in one connection mode, so that the consistency among batteries is improved, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a parallel energy storage system.
Background
The energy storage system mostly adopts a connection mode of first series connection and then parallel connection, and the series connection module needs a battery management system to detect and control a single battery to prevent overcharge and overdischarge due to the inconsistency of capacity, initial SOC, internal resistance and polarization of the battery in the charging and discharging process; when a single battery in a certain battery unit fails, the unit where the battery is located needs to be disconnected from a system, and the battery is picked out for detection, maintenance or replacement; when needing to maintain and change, the mode of first establishing ties then parallelly connected has following problem:
(1) when the energy storage system is provided with only one unit, the standby time of the system can be influenced by disconnecting the whole unit, so that the energy storage system cannot work;
(2) the need to repair or replace a battery requires a significant amount of time to equalize so that the battery is consistent with the other cells in series of the cell.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a parallel energy storage system which comprises a parallel battery pack formed by connecting a plurality of battery units in parallel, wherein each battery unit is a battery branch formed by connecting a plurality of single batteries in parallel.
Preferably, the battery units are divided into n groups, each group of battery units comprises m single batteries, and both n and m are integers not less than 2.
Preferably, the unit cells between each group of the battery units are connected in parallel with each other by a lead.
Preferably, each group of parallel battery packs is connected with the load system through independent wires.
Preferably, the current on each individual wire connected to the load system is similar or equal.
Compared with the prior art, the energy storage system has the beneficial effects that:
(1) when the single battery fails, only the battery needs to be directly extracted, and the normal work of a battery unit and a system is not influenced;
(2) the maintained or replaced battery only needs to ensure that the electric quantity is approximately consistent with the rest batteries, and much time is not needed for balancing;
(3) the whole battery system only has one parallel connection mode, so that the consistency among batteries is improved, and the service life of a single battery is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a parallel energy storage system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a parallel energy storage system includes a parallel battery pack formed by connecting a plurality of battery units 2 in parallel, where the battery units 2 are battery branches formed by connecting a plurality of single batteries 21 in parallel.
In the above technical solution, the battery units 2 are divided into n groups, each group of battery units 2 includes m single batteries, where n and m are integers not less than 2.
In the technical scheme, the single batteries between each group of battery units are connected in parallel with each other through the conducting wires.
In the above technical solution, each group of parallel battery packs is connected to the load system 1 through independent wires.
In the above technical solution, the current on each individual wire connected to the load system is similar or equal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a parallel energy storage system, its characterized in that includes the parallelly connected group battery that forms by a plurality of battery units are parallelly connected, battery unit is the parallelly connected battery branch road of constituteing of a plurality of battery cell, battery unit divide into n group, every group battery unit includes m battery cell, wherein, n, m are the integer that is not less than 2, the battery cell between every group battery unit connects in parallel each other through the wire, and every group parallelly connected group battery links to each other with load system through independent wire respectively.
2. A parallel energy storage system according to claim 1 wherein the current on each individual conductor connected to the load system is similar or equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023008702.4U CN215527890U (en) | 2020-12-14 | 2020-12-14 | Parallel energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023008702.4U CN215527890U (en) | 2020-12-14 | 2020-12-14 | Parallel energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215527890U true CN215527890U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202023008702.4U Active CN215527890U (en) | 2020-12-14 | 2020-12-14 | Parallel energy storage system |
Country Status (1)
| Country | Link |
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| CN (1) | CN215527890U (en) |
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- 2020-12-14 CN CN202023008702.4U patent/CN215527890U/en active Active
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