CN207977764U - It is a kind of to support the lithium battery energy storage battery system with center line UPS - Google Patents
It is a kind of to support the lithium battery energy storage battery system with center line UPS Download PDFInfo
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- CN207977764U CN207977764U CN201820476534.5U CN201820476534U CN207977764U CN 207977764 U CN207977764 U CN 207977764U CN 201820476534 U CN201820476534 U CN 201820476534U CN 207977764 U CN207977764 U CN 207977764U
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- lithium battery
- battery group
- semisection
- ups
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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
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Abstract
The lithium battery energy storage battery system with center line UPS is supported the utility model is related to a kind of, including lithium battery group and UPS hosts, the lithium battery group is connected by battery management system with the positive and negative anodes of UPS hosts, the positive wire parallel connection lithium battery group upper semisection charge switch and lithium battery group upper semisection discharge switch of the lithium battery group, the lithium battery group upper semisection charge switch and lithium battery group upper semisection discharge switch distinguish series diode；The cathode conductor parallel connection lithium battery group lower semisection charge switch and lithium battery group lower semisection discharge switch of the lithium battery group, the lithium battery group lower semisection charge switch and lithium battery group lower semisection discharge switch distinguish series diode, and the battery neutral conductor is equipped between the lithium battery group and UPS hosts.Using inside BMS by charge and discharge loop area every upper and lower two parts independently monitor and control charging, have not only solved the problems, such as over-charging of battery, have crossed and put, but also can effectively solve the voltage capacity problem of inconsistency of upper and lower half section of battery.
Description
Technical field
The present invention relates to support equipment of power supply more particularly to a kind of supporting the lithium battery energy storage battery system with center line UPS.
Background technology
Ups power, i.e. uninterruptible power supply are that accumulator is connected with host, pass through the modular circuits such as host inverter
Direct current is converted into the system equipment of alternating current.Current ups power supplies field, and 90% is up to using plumbic acid solution ratio
More than, however in recent years, the fast development of lithium battery technology, advantage also gradually highlights, compared with traditional lead acid batteries, lithium battery
The advantages such as, discharge-rate high, small with energy density be big, light weight, long lifespan, use temperature range are wide, lithium electricity UPS solutions
Certainly scheme has become the new selection of client.
UPS is divided by design circuit work frequency, can be divided into power frequency machine and High-frequency machine.Power frequency machine is with traditional simulation electricity
Road principle designs, machine internal power device（Such as transformer, inductance, capacitor）It is all larger, generally larger fortune is carried in band
There is smaller noise when row, but type resistance performance in severe power grid environment condition is stronger, reliability and stability are equal
It is stronger than High-frequency machine.And High-frequency machine is with microprocessor（CPU stamen pieces）It is by complicated hardware simulation electricity as processing control centre
Road burning controls the operation of UPS in microprocessor in a manner of software program.Therefore, volume is substantially reduced, and weight is significantly
It reduces, manufacturing cost is low, and price is relatively low.High-frequency machine reverse frequency is generally in 20KHZ or more.But High-frequency machine is in severe power grid
And tolerance is poor under environmental condition, compared with being suitable for, power grid is more stable and dust is less, the suitable environment of temperature/humidity.
In actual use, High-frequency machine UPS needs to connect center line, and battery pack is divided into upper and lower two parts by center line；Work as use
Traditional lead-acid accumulator sets suitable float charge voltage and charging current due to its charge-discharge characteristic；And if lithium is electric
The method that pond uses plumbic acid be easy to cause lithium battery group and overcharges or put phenomenon excessively.
Invention content
In view of the above-mentioned state of the art, technical problem to be solved by the present invention lies in provide one kind both solving electricity
Pond overcharges, crosses and put problem, and can effectively solve, the support of lithium battery group lower semisection voltage capacity problem of inconsistency band center line
The lithium battery energy storage battery system of UPS.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of lithium battery storage supported with center line UPS
Energy system, including lithium battery group and UPS hosts, the positive and negative anodes phase that the lithium battery group passes through battery management system and UPS hosts
Even, the positive wire parallel connection lithium battery group upper semisection charge switch and lithium battery group upper semisection discharge switch of the lithium battery group,
The lithium battery group upper semisection charge switch and lithium battery group upper semisection discharge switch distinguish series diode；The lithium battery group
Cathode conductor parallel connection lithium battery group lower semisection charge switch and lithium battery group lower semisection discharge switch, the lithium battery group lower half
Section charge switch and lithium battery group lower semisection discharge switch distinguish series diode, are set between the lithium battery group and UPS hosts
There is the battery neutral conductor.
Further, the battery management system includes MCU and the current sensor being connected with the MCU, man-machine interface
HMI and battery management unit BMU, the battery management unit are connected with single battery positive and negative anodes respectively, the current sensor
A-D converter is equipped between MCU, the master of the battery management unit BMU bears contactor and main positive contactor controls electricity respectively
Under pond group upper semisection charge switch, lithium battery group upper semisection discharge switch, lithium battery group lower semisection charge switch and lithium battery group
The connection of half section of discharge switch, wherein：
The current sensor, for detecting lithium battery group electric current；
The battery management unit BMU, the voltage for detecting single battery；
The man-machine interface HMI, for interacting the medium with information exchange between system and user.
Further, the battery management system is communicated with UPS hosts by RS232, RS485, CAN bus, or
Person's battery management system carries out signal output by dry contact, the wet contact of UPS hosts.
Compared with prior art, the beneficial effects of the invention are as follows：This programme uses charge and discharge loop area inside BMS
Every upper and lower two parts independently monitor and control charging, have not only solved the problems, such as over-charging of battery, have crossed and put, but also can effectively solve upper and lower
The voltage capacity problem of inconsistency of half section of battery.The present invention designs, and is suitble to large-scale promotion.
Description of the drawings
Fig. 1 is the circuit connecting relation figure of the present invention；
Fig. 2 is the battery management system connection block diagram of the present invention；
Fig. 3 is the circuit connecting relation figure of the embodiment of the present invention 2.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, is the preferred embodiment in the embodiment of the present invention, rather than complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
For ease of description, hereinafter occur：The lithium battery group upper semisection discharge switch is indicated with K1, the lithium is electric
Pond group upper semisection charge switch K2 is indicated, the lithium battery group lower semisection discharge switch is indicated with K3, the lithium battery group lower half
Section charge switch is indicated with K4.
It is as shown in Figs. 1-2, a kind of to support the lithium battery energy storage battery system with center line UPS, including lithium battery group and UPS hosts,
The lithium battery group is connected by battery management system with the positive and negative anodes of UPS hosts, and the positive wire of the lithium battery group is in parallel
Lithium battery group upper semisection charge switch and lithium battery group upper semisection discharge switch, the lithium battery group upper semisection charge switch and lithium
Battery pack upper semisection discharge switch distinguishes series diode；The cathode conductor parallel connection lithium battery group lower semisection of the lithium battery group fills
Electric switch and lithium battery group lower semisection discharge switch, the lithium battery group lower semisection charge switch and the electric discharge of lithium battery group lower semisection
Switch difference series diode, is equipped with the battery neutral conductor between the lithium battery group and UPS hosts.
The battery management system includes the MCU and current sensor being connected with the MCU, man-machine interface HMI and battery
Administrative unit BMU, the battery management unit are connected with single battery positive and negative anodes respectively, between the current sensor and MCU
Equipped with A-D converter, the master of the battery management unit BMU bears contactor and main positive contactor controls battery pack upper half respectively
Section charge switch, lithium battery group upper semisection discharge switch, lithium battery group lower semisection charge switch and the electric discharge of lithium battery group lower semisection
The connection of switch, wherein：
The current sensor, for detecting lithium battery group electric current；
The battery management unit BMU, the voltage for detecting single battery；
The man-machine interface HMI, for interacting the medium with information exchange between system and user.
The battery management system is communicated by RS232, RS485, CAN bus with UPS hosts or battery management
System carries out signal output by dry contact, the wet contact of UPS hosts.
Battery management system monitors the voltage and temperature of all single batteries, is controlled according to information such as voltage, electric current, temperature
Charge switch：K2, K4's is opened or closed, discharge switch：K1, K3 are opened or closed.
Operation principle：
Top half charge circuit
UPS+→K2 → D2 →BAT+ → M
Battery management system detect monomer voltage overcharge, excess temperature, charging overcurrent when, disconnect switch K2, be otherwise closed.
Top half discharge loop
BAT+ → D1 → K1→ UPS+→ M
Battery management system detect monomer voltage cross put, excess temperature, electric discharge overcurrent when, disconnect switch K1, be otherwise closed.
Lower half portion charge circuit
M→ BAT- → D4 →K4 → UPS-
Battery management system detect monomer voltage overcharge, excess temperature, charging overcurrent when, disconnect switch K3, be otherwise closed.
Lower half portion discharge loop
M→ UPS- → K3→ D3 → BAT-
Battery management system detect monomer voltage cross put, excess temperature, electric discharge overcurrent when, disconnect switch K3, be otherwise closed.
Embodiment 2
Compared with embodiment 1, difference lies in modularized design can be used in multiple lithium battery groups to the present embodiment, specifically, every two
A lithium battery group uses distribution symmetrical above and below, wherein is placed in the lithium battery group of upper end using the lithium battery group upper half in embodiment 1
Section wiring construction；The lithium battery group of lower end is placed in using the lithium battery group lower semisection wiring construction in embodiment 1；And so on can
It realizes the management to multiple lithium battery groups, completes UPS dilatation lithium battery energy storage battery systems.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (3)
1. a kind of support the lithium battery energy storage battery system with center line UPS, including lithium battery group and UPS hosts, the lithium battery group logical
It crosses battery management system with the positive and negative anodes of UPS hosts to be connected, which is characterized in that the positive wire parallel connection lithium electricity of the lithium battery group
Pond group upper semisection charge switch and lithium battery group upper semisection discharge switch, the lithium battery group upper semisection charge switch and lithium battery
Group upper semisection discharge switch distinguishes series diode；The cathode conductor parallel connection lithium battery group lower semisection charging of the lithium battery group is opened
Pass and lithium battery group lower semisection discharge switch, the lithium battery group lower semisection charge switch and lithium battery group lower semisection discharge switch
Series diode respectively is equipped with the battery neutral conductor between the lithium battery group and UPS hosts.
2. a kind of the lithium battery energy storage battery system with center line UPS is supported according to claim 1, which is characterized in that the electricity
It includes the MCU and current sensor being connected with the MCU, man-machine interface HMI and battery management unit BMU, institute that pond, which manages system,
It states battery management unit to be respectively connected with single battery positive and negative anodes, A-D converter is equipped between the current sensor and MCU,
The master of the battery management unit BMU bears contactor and main positive contactor controls battery pack upper semisection charge switch, lithium electricity respectively
The connection of pond group upper semisection discharge switch, lithium battery group lower semisection charge switch and lithium battery group lower semisection discharge switch, wherein：
The current sensor, for detecting lithium battery group electric current；
The battery management unit BMU, the voltage for detecting single battery；
The man-machine interface HMI, for interacting the medium with information exchange between system and user.
3. a kind of the lithium battery energy storage battery system with center line UPS is supported according to claim 1, which is characterized in that the electricity
Pond management system is communicated by RS232, RS485, CAN bus with UPS hosts or battery management system passes through UPS master
Dry contact, the wet contact of machine carry out signal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820476534.5U CN207977764U (en) | 2018-04-05 | 2018-04-05 | It is a kind of to support the lithium battery energy storage battery system with center line UPS |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820476534.5U CN207977764U (en) | 2018-04-05 | 2018-04-05 | It is a kind of to support the lithium battery energy storage battery system with center line UPS |
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| CN207977764U true CN207977764U (en) | 2018-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667088A (en) * | 2018-04-05 | 2018-10-16 | 宁波兆科新能源科技有限公司 | It is a kind of to support the lithium battery energy storage battery system with center line UPS |
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2018
- 2018-04-05 CN CN201820476534.5U patent/CN207977764U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667088A (en) * | 2018-04-05 | 2018-10-16 | 宁波兆科新能源科技有限公司 | It is a kind of to support the lithium battery energy storage battery system with center line UPS |
| CN108667088B (en) * | 2018-04-05 | 2023-09-29 | 宁波兆科新能源科技有限公司 | Lithium battery energy storage system supporting UPS with neutral line |
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