CN208046237U - Power supply system for new energy station - Google Patents
Power supply system for new energy station Download PDFInfo
- Publication number
- CN208046237U CN208046237U CN201721858789.XU CN201721858789U CN208046237U CN 208046237 U CN208046237 U CN 208046237U CN 201721858789 U CN201721858789 U CN 201721858789U CN 208046237 U CN208046237 U CN 208046237U
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- Prior art keywords
- power supply
- battery
- new energy
- battery pack
- supply 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present disclosure discloses a kind of power supply systems for new energy station, including photovoltaic module, gird-connected inverter, grid-connected distribution box, light-electricity complementary power supply, battery pack, wherein battery pack includes lithium titanate battery；The output end of photovoltaic module and the input terminal of the input terminal of gird-connected inverter and light-electricity complementary power supply connect；The output end of gird-connected inverter is connect with the input terminal of grid-connected distribution box, and the first output end of grid-connected distribution box is connect with the input terminal of light-electricity complementary power supply, and the second output terminal of grid-connected distribution box is for connecting AC load；First output end of light-electricity complementary power supply is for connecting DC load；The electric energy received is conveyed to battery pack by light-electricity complementary power supply by its second output terminal, for battery storage.The disclosure improves the stability of DC current, ensures the stable operation of load of base station.
Description
Technical field
This disclosure relates to new energy technical field more particularly to a kind of power supply system for new energy station.
Background technology
With social development, people's lives and work increasingly be unable to do without electric energy.In some area such as remote mountain areas, herd
Area, desert area and field work occasion, power grid do not cover, and electricity consumption is at big problem.People usually adopt in these places
It is generated electricity with small power generation equipments such as fuel electric generators, this generating equipment can consume the fossil energies such as petrol and diesel oil, use cost
High, pollution is greatly.On the contrary, having using the photovoltaic power generation equipment that this cleaning of solar energy, universal regenerative resource generate electricity
Remarkable advantage：Fossil energy, noiseless and exhaust emission are not consumed, operation expense is low, and service life is long.Especially to base
The power supply stood, it is the most environmentally friendly with solar power generation.
But current solar electric power supply system can only provide alternating current or DC current to base station, and carried
The DC current of confession is simultaneously unstable, can not ensure the stable operation of load of base station.
Utility model content
The main purpose of at least one embodiment of the disclosure is to provide a kind of power supply system for new energy station, it is intended to
DC current and alternating current can not only be provided simultaneously, and improve the stability of DC current, ensure the steady of load of base station
Fixed operation.
To achieve the above object, one embodiment of the disclosure proposes a kind of power supply system for new energy station, including photovoltaic
Component, gird-connected inverter, grid-connected distribution box, light-electricity complementary power supply, battery pack, wherein the battery pack includes lithium titanate battery；
The input of the output end of the photovoltaic module and the input terminal and the light-electricity complementary power supply of the gird-connected inverter
End connection；
The output end of the gird-connected inverter is connect with the input terminal of the grid-connected distribution box, and the of the grid-connected distribution box
One output end is connect with the input terminal of the light-electricity complementary power supply, and the second output terminal of the grid-connected distribution box is handed over for connecting
Current load；
First output end of the light-electricity complementary power supply is for connecting DC load；The light-electricity complementary power supply will receive
Electric energy battery pack is conveyed to by its second output terminal, for battery storage.
Preferably, further include the third output end of the input terminal of two-way ammeter described in two-way ammeter and the grid-connected distribution box
Connection, and the electric energy received is transported to by its output end in network system by the two-way ammeter.
Preferably, further include cabinet, battery pack, insulation board, voltage output interface and battery management system BMS, it is described
Battery pack, insulation board and the battery management system BMS are arranged in the inner cavity of the cabinet, the voltage output interface setting
In the side of the cabinet；
The positive terminal and negative pole end of the lithium titanate battery are separately installed with the insulation board；
The positive terminal and negative pole end are connected separately with positive output lead and cathode output lead, on the insulation board
Trepanning corresponding with the lithium titanate battery, the anode output lead and the cathode output lead are provided with through described exhausted
The trepanning of listrium exports, and is connect with the voltage output interface.
Preferably, the battery management system BMS includes discharge control switch, and the discharge control switch is arranged described
Between positive output lead and the voltage output interface, to control the voltage output of the battery pack.
Preferably, the quantity of the lithium titanate battery is multiple, and the positive terminal of each two lithium titanate battery and positive terminal,
Negative pole end is connected in parallel by sheet metal respectively with negative pole end, obtains multigroup batteries in parallel connection module；
The negative pole end of each group batteries in parallel connection module is connected in series with positive terminal by the sheet metal, is obtained described
Battery pack.
Preferably, the trepanning export for the insulation board that the positive output lead is installed through the positive terminal, the cathode are defeated
Go out the trepanning export for the insulation board that conducting wire is installed through the negative pole end.
Preferably, the voltage output interface includes two binding posts, wherein a binding post is led with the anode output
Line connects, another binding post is connect with the cathode output lead.
Preferably, the sheet metal includes aluminium flake or copper sheet.
Preferably, the battery management system BMS include master control borad, the total voltage for detecting battery pack, electric current and
The battery cluster manager of drain conditions, is used the BMU battery set managements module for managing each lithium titanate battery in the battery pack
According to master control borad control carry out fault alarm alarm module and and for for being led between master control borad and server
The communication module of news；The master control borad and the battery cluster manager, BMU battery set managements module, diagnostic module, alarm mould
Block, parameter setting module and communication module are electrically connected.
Preferably, the communication module includes Wi-Fi module, bluetooth module or radio-frequency module；The alarm module packet
Include buzzer or voice prompt device.
The embodiment of the present disclosure applies gird-connected inverter, grid-connected distribution box, light-electricity complementary power supply for new energy station
Power supply system is exported since grid-connected distribution box can will receive electric energy with alternating current, can be with by the grid-connected distribution box
Alternating current is provided to load, and because the unstable DC current that light-electricity complementary power supply can provide photovoltaic module is converted into
Stable DC stream is the battery-powered of base station, ensures the stable operation of load of base station.
Description of the drawings
In order to illustrate more clearly of the embodiment of the present disclosure or technical solution in the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some disclosed embodiments for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is circuit connection diagram of the disclosure for the power supply system at new energy station；
Fig. 2 is overall structure diagram of the disclosure for the power supply system at new energy station；
Fig. 3 is the assembling decomposition diagram of the power supply system shown in Fig. 2 for new energy station；
Fig. 4 is another assembling decomposition diagram of the power supply system shown in Fig. 2 for new energy station；
Structural schematic diagrams of the Fig. 5 for battery pack in the power supply system shown in Fig. 2 for new energy station at the ends A；
Structural schematic diagrams of the Fig. 6 for battery pack in the power supply system shown in Fig. 2 for new energy station at the ends B；
Fig. 7 is circuit connection diagram of the disclosure for the battery management system BMS of the power supply system at new energy station.
Realization, functional characteristics and the advantage of embodiment of the present disclosure purpose will be done furtherly with reference to attached drawing in conjunction with the embodiments
It is bright.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of this disclosure embodiment, instead of all the embodiments.Base
Embodiment in the disclosure, those of ordinary skill in the art obtained under the premise of not making the creative labor it is all its
His embodiment belongs to the range of disclosure protection.
It is to be appreciated that if the directional instruction (such as up, down, left, right, before and after ...) of institute is only in the embodiment of the present disclosure
For explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if
When the particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the disclosure is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, the protection model also not required in the disclosure
Within enclosing.
The embodiment of the present disclosure proposes a kind of power supply system for new energy station.
Referring especially to Fig. 1, in one embodiment of the disclosure, which includes photovoltaic module
10, gird-connected inverter 20, grid-connected distribution box 30, light-electricity complementary power supply 40, battery pack 120, wherein the battery pack 120 includes titanium
Acid lithium battery 121；The input terminal of the output end of photovoltaic module 10 and the input terminal and light-electricity complementary power supply 40 of gird-connected inverter 20
Connection；The output end of gird-connected inverter 20 is connect with the input terminal of grid-connected distribution box 30, the first output end of grid-connected distribution box 30
It is connect with the input terminal of light-electricity complementary power supply 40, and the second output terminal of grid-connected distribution box 30 is for connecting AC load L2；Light
First output end of electric complementary power supply 40 is for connecting DC load L3；The electric energy received is passed through it by light-electricity complementary power supply 40
Second output terminal is conveyed to battery pack 120, for 120 electric power storage of battery pack.
The power supply system for being used for new energy station is to be combined photovoltaic off-grid and grid-connected two kinds of systems.When alternating current is normal
When, the DC current that photovoltaic module 10 provides is converted into alternating current by gird-connected inverter 20, and alternating current is provided to load；When
When mains failure, the unstable DC current that photovoltaic module 10 provides is converted into stable DC by light-electricity complementary power supply 40
Stream, the battery pack 120 for continuing as base station are powered, and ensure the stable operation of load of base station.
The embodiment of the present disclosure applies gird-connected inverter 20, grid-connected distribution box 30, light-electricity complementary power supply 40 for new energy
The power supply system of source station is exported since grid-connected distribution box 30 can will receive electric energy with alternating current, grid-connected is matched by this
Electronic box 30 can to load provide alternating current, and because light-electricity complementary power supply 40 photovoltaic module 10 can be provided it is unstable
DC current is converted into stable DC stream, is that the battery pack 120 of base station is powered, ensures the stable operation of load of base station.
In the above-described embodiments, which further includes two-way ammeter 50, two-way ammeter 50
Input terminal is connect with the third output end of grid-connected distribution box 30, and two-way ammeter 50 is defeated by its output end by the electric energy received
It is sent in power grid L1 systems.
Referring especially to Fig. 2 to Fig. 4, in one embodiment of the disclosure, which further includes machine
Case 110, battery pack 120, insulation board 130, voltage output interface 140 and battery management system BMS (not shown), battery pack
120, insulation board 130 and battery management system BMS are arranged in the inner cavity of cabinet 110, and voltage output interface 140 is arranged in cabinet
110 side；Battery pack 120 includes lithium titanate battery 121, and the positive terminal of lithium titanate battery 121 and negative pole end are installed respectively
There is insulation board 130；Positive terminal and negative pole end are connected separately with positive output lead (not shown) and cathode output lead (is schemed not
Show), trepanning 133 corresponding with lithium titanate battery 121 is provided on insulation board 130, positive output lead and cathode output are led
Trepanning 133 of the line through insulation board 130 exports, and is connect with voltage output interface 140.
In the embodiments of the present disclosure, according to the suitable of top to bottm inside the cabinet 110 of the power supply system for being used for new energy station
Sequence has set gradually the first insulation board 131, battery pack 120 and battery management system BMS (Battery Management
System, BMS), the second insulation board 132.The battery pack 120 includes multiple lithium titanate batteries 121, each lithium titanate battery 121
Positive terminal and the screw thread binding post 122 that is both provided with of negative pole end, exported by the anode that nut 123 will be connect with the positive terminal
Conducting wire is fixed on the screw thread binding post 122 of the positive terminal, and the cathode output lead that will be connect with the negative pole end by nut
It is fixed on the screw thread binding post 122 of the negative pole end.Trepanning corresponding with lithium titanate battery 121 is provided on the insulation board 130
133, and 133 diameter of each trepanning is led slightly larger than the diameter of the screw thread binding post 122 after installation nut 123 with facilitating anode to export
Line and cathode output lead are passed through from trepanning 133.
The embodiment of the present disclosure is by applying lithium titanate battery 121 in the power supply system for new energy station, to carry
Thermal adaptability, efficiency for charge-discharge and the service life of the high power supply system for new energy station.
In some embodiments, 121 self discharge of lithium titanate battery in order to prevent, battery management system BMS include electric discharge
Control switch (not shown), discharge control switch is arranged between positive output lead and voltage output interface 140, to control electricity
The voltage output of pond group 120.
And the concrete structure of battery pack 120 can be used preferably and realized with lower structure, referring especially to Fig. 5 and Fig. 6, titanium
The quantity of acid lithium battery 121 is multiple, and the positive terminal of each two lithium titanate battery 121 and positive terminal, negative pole end and negative pole end
It is connected in parallel respectively by sheet metal 160, obtains multigroup batteries in parallel connection group；By the negative pole end of each group batteries in parallel connection group and just
It is extremely connected in series with by sheet metal, obtains battery pack 120.
For example, certain communication base station need to use 48V-300AH as backup power supply, every group of battery by 22 300AH battery
Block coupled in series forms, and wherein the battery of 300AH is that the battery core for being 30AH by 10 single battery core capacity composes in parallel, 22 section 300AH
Battery module there are 26 strings and 25 string modules to be composed in series the battery pack of a 48V/300AH respectively.
In the embodiments of the present disclosure, lithium titanate battery 121 is carried out by connection in series-parallel connection by sheet metal, to realize to obtain mesh
The battery pack 120 of voltage and target capacity is marked, thus convenient assembling, dismounting to each lithium titanate battery 121 in battery pack 120,
And then it is convenient to the target voltage of battery pack 120 and being reduced or increased for target capacity.
It is understood that connecting up for convenience, the trepanning for the insulation board 130 that positive output lead is installed through positive terminal
The trepanning 133 of 133 export, the insulation board 130 that cathode output lead is installed through negative pole end exports.
In the embodiment of the present disclosure, for the ease of controlling the charge and discharge of battery pack 120, voltage output interface 140 includes two
Binding post a, wherein binding post 141 is connect with positive output lead, another binding post 142 connects with cathode output lead
It connects.
In some embodiments, sheet metal 160 is aluminium flake or copper sheet.
In some embodiments, cabinet 110 includes upper casing (not shown) and lower casing 111, and the edge of upper casing and lower casing is equal
Multiple screw hole (not shown) are provided with, upper casing is connected based on each screw hole by screw (not shown) with lower casing.
In addition, referring especially to Fig. 7, battery management system BMS of the disclosure in the power supply system at new energy station is also wrapped
It includes：Master control borad 60 and the battery cluster manager 70 being electrically connected with master control borad 60, BMU battery set managements module 80, alarm module 90
And communication module 100.
Battery cluster manager 70 (Battery Cluster Management System, BCMS), for detecting battery pack
120 total voltage, electric current and drain conditions.For example, for battery pack 120 in the power supply system at new energy station by battery management
System BMS controls, and battery management system BMS is led by a battery cluster manager 70, which is responsible for pipe
The all batteries group management module (Battery Management Unit, BMU) in a battery pack 120 is managed, electricity is provided simultaneously with
The current detecting of pond group 120, the total voltage detection of battery pack 120, the detection of electrical leakage of battery pack 120, and in 120 state of battery pack
Driving disconnects high-voltage power contact when being abnormal (such as voltage, electric current, temperature analog quantity occur more than safeguard protection thresholding)
Device keeps battery pack out of service, ensures that battery is safe to use.
BMU battery set managements module 80, for managing each lithium titanate battery 121 in battery pack 120.For example, two BMU electricity
Pond group management module 80, each BMU battery set managements module 80 are responsible for 12 string unit battery modules, have single battery end
Voltage detecting, 120 achieving multipoint temperature detection of battery pack, 120 Balance route of battery pack, to safeguard each lithium titanate electricity in battery pack 120
The voltage consistency in pond 121.
Alarm module 90, for carrying out fault alarm according to the control of master control borad 60.For example, the alarm module 90 can be into
Row：120 overvoltage alarm of battery pack；120 undervoltage alarm of battery pack；120 overcurrent of battery pack alerts；120 high temperature alarm of battery pack；Electricity
Group 120 low temperature in pond alerts；120 electric leakage alarming of battery pack；Battery management system BMS communication abnormalities alert；Battery management system BMS
Internal abnormality alerts.
Communication module 100, for for being communicated between master control borad 60 and server.
The embodiment of the present disclosure by applying battery management system BMS in the power supply system for new energy station, to
It realizes and management is put entirely to complete fill of battery pack 120, complete the capacity calibration to battery pack 120 and SOC calibration.
In some embodiments, communication module 100 includes Wi-Fi module, bluetooth module or radio-frequency module.
In some embodiments, alarm module 90 includes buzzer or voice prompt device.
The foregoing is merely preferred embodiment of the present disclosure, are not intended to limit the scope of the claims of the disclosure, every at this
Under disclosed utility model design, using equivalent structure transformation made by present disclosure specification and accompanying drawing content, or directly/indirectly
Other related technical areas are used in be included in the scope of patent protection of the disclosure.
Claims (10)
1. a kind of power supply system for new energy station, which is characterized in that including photovoltaic module, gird-connected inverter, grid-connected distribution
Case, light-electricity complementary power supply, battery pack, wherein the battery pack includes lithium titanate battery；
The output end of the photovoltaic module connects with the input terminal of the gird-connected inverter and the input terminal of the light-electricity complementary power supply
It connects；
The output end of the gird-connected inverter is connect with the input terminal of the grid-connected distribution box, and the first of the grid-connected distribution box is defeated
Outlet is connect with the input terminal of the light-electricity complementary power supply, and the second output terminal of the grid-connected distribution box is negative for connecting exchange
It carries；
First output end of the light-electricity complementary power supply is for connecting DC load；The electricity that the light-electricity complementary power supply will receive
It can be conveyed to battery pack by its second output terminal, for battery storage.
2. being used for the power supply system at new energy station as described in claim 1, which is characterized in that further include two-way ammeter, it is described
The input terminal of two-way ammeter is connect with the third output end of the grid-connected distribution box, and the electric energy that the two-way ammeter will receive
It is transported in network system by its output end.
3. being used for the power supply system at new energy station as claimed in claim 2, which is characterized in that further include cabinet, insulation board, electricity
Output interface and battery management system BMS, the battery pack, insulation board and battery management system BMS settings is pressed to exist
The inner cavity of the cabinet, the voltage output interface are arranged in the side of the cabinet；
The positive terminal and negative pole end of the lithium titanate battery are separately installed with the insulation board；
The positive terminal and negative pole end are connected separately with positive output lead and cathode output lead, are arranged on the insulation board
There is trepanning corresponding with the lithium titanate battery, the anode output lead and the cathode output lead are through the insulation board
Trepanning export, and connect with the voltage output interface.
4. being used for the power supply system at new energy station as claimed in claim 3, which is characterized in that the battery management system BMS
Including discharge control switch, discharge control switch setting the positive output lead and the voltage output interface it
Between, to control the voltage output of the battery pack.
5. being used for the power supply system at new energy station as claimed in claim 3, which is characterized in that the quantity of the lithium titanate battery
To be multiple, and the positive terminal of each two lithium titanate battery is carried out simultaneously by sheet metal respectively with positive terminal, negative pole end and negative pole end
Connection connection, obtains multigroup batteries in parallel connection module；
The negative pole end of each group batteries in parallel connection module is connected in series with positive terminal by the sheet metal, the battery is obtained
Group.
6. being used for the power supply system at new energy station as claimed in claim 3, which is characterized in that the anode output lead is through institute
State the trepanning export of the insulation board of positive terminal installation, the trepanning for the insulation board that the cathode output lead is installed through the negative pole end
Export.
7. being used for the power supply system at new energy station as claimed in claim 3, which is characterized in that the voltage output interface includes
Two binding posts a, wherein binding post is connect with the positive output lead, another binding post is led with cathode output
Line connects.
8. as claimed in claim 5 be used for new energy station power supply system, which is characterized in that the sheet metal include aluminium flake or
Copper sheet.
9. being used for the power supply system at new energy station as claimed in claim 4, which is characterized in that the battery management system BMS
Further include the battery cluster manager of master control borad, the total voltage for detecting battery pack, electric current and drain conditions, for managing
State the BMU battery set managements module of each lithium titanate battery in battery pack, for carrying out fault alarm according to the control of master control borad
Alarm module and for the communication module for being communicated between master control borad and server；The master control borad and the battery
Cluster manager, BMU battery set managements module, alarm module and communication module are electrically connected.
10. being used for the power supply system at new energy station as claimed in claim 9, which is characterized in that the communication module includes Wi-
Fi modules, bluetooth module or radio-frequency module；The alarm module includes buzzer or voice prompt device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721858789.XU CN208046237U (en) | 2017-12-25 | 2017-12-25 | Power supply system for new energy station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721858789.XU CN208046237U (en) | 2017-12-25 | 2017-12-25 | Power supply system for new energy station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208046237U true CN208046237U (en) | 2018-11-02 |
Family
ID=63955977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721858789.XU Expired - Fee Related CN208046237U (en) | 2017-12-25 | 2017-12-25 | Power supply system for new energy station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208046237U (en) |
-
2017
- 2017-12-25 CN CN201721858789.XU patent/CN208046237U/en not_active Expired - Fee Related
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