CN207304020U - Distribution system and low-voltage distribution system - Google Patents
Distribution system and low-voltage distribution system Download PDFInfo
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- CN207304020U CN207304020U CN201721135193.7U CN201721135193U CN207304020U CN 207304020 U CN207304020 U CN 207304020U CN 201721135193 U CN201721135193 U CN 201721135193U CN 207304020 U CN207304020 U CN 207304020U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a kind of distribution system and low-voltage distribution system, is related to technical field of electric power, including AC power distribution cabinet/AC distribution panel, four-quadrant conversion cabinet, direct current charge-discharge cabinet, energy storage cabinet and photovoltaic switch board；AC power distribution cabinet/AC distribution panel, four-quadrant conversion cabinet, direct current charge-discharge cabinet, be connected by exchanging copper busbar with direct-current copper-bus between energy storage cabinet and photovoltaic switch board and transmit electric energy；AC power distribution cabinet/AC distribution panel is exchanged the conversion between direct current by four-quadrant conversion cabinet, the synchronizing mode for solving low-voltage distribution cabinet routine existing in the prior art is that photovoltaic switch board needs and a set of low-voltage distribution cabinet is grid-connected, energy-storage battery needs and such single grid-connected connection modes such as another set of low-voltage distribution cabinet is grid-connected, low-voltage distribution cabinet is caused only to have the function of single, and multiple low-voltage distribution cabinets are needed according to the synchronizing mode of this each individually designed low-voltage cabinet of system, so that the technical problem that cost improves.
Description
Technical field
Technical field of electric power is the utility model is related to, more particularly, to a kind of distribution system and low-voltage distribution system.
Background technology
There is low-voltage distribution cabinet transmission of electricity, distribution and electric energy conversion to be used, and the rated current of low-voltage distribution cabinet is exchange
50Hz, using the distribution system that rated voltage is 380v as power, changes as the electric energy of illumination and controller switching equipment and controls it
With.Low-voltage distribution cabinet has strong breaking capacity, and dynamic thermal stability is good, and electrical arrangement is quoted flexibly, and combination is convenient, serial, real
It is strong with property, the features such as structure is novel.
Low-voltage distribution cabinet is suitable for the industries such as oil, chemical industry, metallurgy, weaving, skyscraper, but also suitable for power generation
The power consumers such as factory, substation, industrial enterprise.The rated operational current of low-voltage distribution cabinet can be down to 3150A.
At present, the synchronizing mode of low-voltage distribution cabinet routine is that photovoltaic switch board needs are grid-connected with a set of low-voltage distribution cabinet, storage
Energy battery needs and another set of low-voltage distribution cabinet is grid-connected, etc. such single grid-connected connection mode, so low-voltage distribution
Cabinet only has the function of single, and needs multiple low-voltage distributions according to the synchronizing mode of this each individually designed low-voltage cabinet of system
Cabinet, causes cost to improve.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of distribution system and low-voltage distribution system, to solve
The synchronizing mode of low-voltage distribution cabinet routine existing in the prior art be photovoltaic switch board need with a set of low-voltage distribution cabinet it is grid-connected,
Such single grid-connected connection modes such as energy-storage battery needs and another set of low-voltage distribution cabinet is grid-connected, cause low-voltage distribution cabinet
Only have the function of it is single, and according to the multiple low-voltage distributions of synchronizing mode needs of this each individually designed low-voltage cabinet of system
Cabinet, so that the technical problem that cost improves.
In a first aspect, the utility model embodiment provides a kind of distribution system, including：AC power distribution cabinet/AC distribution panel, four-quadrant become
Change cabinet, direct current charge-discharge cabinet, energy storage cabinet and photovoltaic switch board；
One end of four-quadrant conversion cabinet is connected with the AC power distribution cabinet/AC distribution panel, the other end and the direct current charge-discharge cabinet,
The energy storage cabinet and photovoltaic switch board connection；
The AC power distribution cabinet/AC distribution panel, four-quadrant conversion cabinet, the direct current charge-discharge cabinet, the energy storage cabinet and the light
It is connected between volt switch board with direct-current copper-bus by exchanging copper busbar and transmits electric energy；
The AC power distribution cabinet/AC distribution panel is exchanged the conversion between direct current by four-quadrant conversion cabinet；
The AC power distribution cabinet/AC distribution panel is used to provide electric energy to AC load；
The direct current charge-discharge cabinet carries out charge or discharge by DCDC circuits to charging terminal；
The energy storage cabinet carries out charge or discharge by DCDC circuits to energy-storage battery；
The photovoltaic switch board is by controlling photovoltaic MPPT devices to carry out the power generation of photovoltaic battery panel.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect, its
In, the four-quadrant conversion cabinet is by being arranged at internal four-quadrant translation circuit, AC circuit breaker and the first direct current interruption
Device is exchanged the mutual conversion between direct current.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect, its
In, it is provided with the first DCDC circuits and the second dc circuit breaker in the direct current charge-discharge cabinet；
One end of the first DCDC circuits is connected with second dc circuit breaker, and the other end is connected with charging terminal.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect, its
In, the 2nd DCDC circuits and the 3rd dc circuit breaker are provided with the energy storage cabinet；
One end of the 2nd DCDC circuits is connected with the 3rd dc circuit breaker, and the other end is connected with energy-storage battery.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect, its
In, it is provided with the 4th dc circuit breaker in the photovoltaic switch board.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect, its
In, the 4th dc circuit breaker is connected with photovoltaic MPPT devices.
Second aspect, the utility model embodiment also provide a kind of low-voltage distribution system, including：AC load, charging are eventually
End, energy-storage battery, photovoltaic MPPT devices and the distribution system such as first aspect；
The AC load, the charging terminal, the energy-storage battery and the photovoltaic MPPT devices are matched somebody with somebody with described
Electric system connects.
With reference to second aspect, the utility model embodiment provides the first possible embodiment of second aspect, its
In, one end of the AC power distribution cabinet/AC distribution panel in the distribution system is connected with the AC load, in the other end and the distribution system
Four-quadrant conversion cabinet connection.
With reference to second aspect, the utility model embodiment provides second of possible embodiment of second aspect, its
In, further include：The transformer being connected with the AC power distribution cabinet/AC distribution panel.
With reference to second aspect, the utility model embodiment provides the third possible embodiment of second aspect, its
In, it is provided with the AC power distribution cabinet/AC distribution panel and connects respectively with the AC load, the transformer and the four-quadrant conversion cabinet
At least three breakers connect.
The technical solution that the utility model embodiment provides brings following beneficial effect：The utility model embodiment provides
Distribution system and low-voltage distribution system system in, distribution system include photovoltaic switch board, AC power distribution cabinet/AC distribution panel, four-quadrant conversion
Cabinet, direct current charge-discharge cabinet and energy storage cabinet, wherein, energy storage cabinet, photovoltaic switch board, AC power distribution cabinet/AC distribution panel, four-quadrant conversion cabinet and direct current
By exchanging copper busbar and direct-current copper-bus connection and transmitting electric energy between discharge and recharge cabinet, furthermore, AC power distribution cabinet/AC distribution panel passes through
Four-quadrant conversion cabinet is exchanged the conversion between direct current, in addition, AC power distribution cabinet/AC distribution panel is used to provide electric energy, direct current to AC load
Discharge and recharge cabinet carries out charging terminal charge or discharge by DCDC circuits, and energy storage cabinet carries out energy-storage battery by DCDC circuits
Charge or discharge, photovoltaic switch board are converted by controlling photovoltaic MPPT devices to carry out the power generation of photovoltaic battery panel by four-quadrant
The alternating current of AC power distribution cabinet/AC distribution panel is converted to direct current by cabinet, and between energy storage cabinet, photovoltaic switch board and direct current charge-discharge cabinet
Change between AC DC, plus the connection and electric energy transmission of exchange copper busbar, direct-current copper-bus between the said equipment, realize
One low-voltage alternating-current power distribution cabinet can be connected to photovoltaic switch board, AC power distribution cabinet/AC distribution panel, direct current at the same time by four-quadrant conversion cabinet and fill
Discharge the multiple devices such as cabinet and energy storage cabinet, so that photovoltaic switch board, AC power distribution cabinet/AC distribution panel, direct current charge-discharge cabinet and energy storage cabinet
Operation Deng multiple devices can need only to a low-voltage distribution cabinet at the same time, so that cost reduction, the work(of low-voltage distribution cabinet
Can be also therefore no longer single with grid-connected connection mode, so as to solve the grid-connected of low-voltage distribution cabinet routine existing in the prior art
Mode is photovoltaic switch board needs and a set of low-voltage distribution cabinet is grid-connected, energy-storage battery needs and another set of low-voltage distribution cabinet are grid-connected etc.
Such single grid-connected connection mode, causes low-voltage distribution cabinet only to have the function of single, and according to this each system
The synchronizing mode of individually designed low-voltage cabinet needs multiple low-voltage distribution cabinets, so that the technical problem that cost improves.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and obtained in book, claims and attached drawing.
To enable the above-mentioned purpose of the utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram for the distribution system that the utility model embodiment provides；
Fig. 2 is another structure diagram of the distribution system in the utility model embodiment；
Fig. 3 is the structure diagram for the low-voltage distribution system that the utility model embodiment provides；
Fig. 4 is another structure diagram of the low-voltage distribution system in the utility model embodiment.
Icon：1- distribution systems；11- AC power distribution cabinet/AC distribution panels；12- four-quadrants convert cabinet；13- direct current charge-discharge cabinets；14- energy storage
Cabinet；15- photovoltaic switch boards；111- breakers；112- frame circuit breakers；113- AC load breakers；121- four-quadrants convert
Module；122- AC circuit breakers；The first dc circuit breakers of 123-；The first DC/DC modules of 131-；The second dc circuit breakers of 132-；
The 2nd DC/DC modules of 141-；The 3rd dc circuit breakers of 142-；The 4th dc circuit breakers of 151-；2- low-voltage distribution systems；21- electricity
Electrical automobile；22- energy-storage batteries；23- photovoltaic MPPT solar panels；24- AC loads；25- transformers.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The synchronizing mode of low-voltage distribution cabinet routine is that photovoltaic switch board needs and a set of low-voltage distribution cabinet is grid-connected, energy storage at present
Such single grid-connected connection modes such as battery needs and another set of low-voltage distribution cabinet is grid-connected, cause low-voltage distribution cabinet only to have
There is single function, and multiple low-voltage distribution cabinets are needed according to the synchronizing mode of this each individually designed low-voltage cabinet of system, from
And cost is improved, based on this, a kind of distribution system and low-voltage distribution system that the utility model embodiment provides can solve
The synchronizing mode of low-voltage distribution cabinet routine certainly existing in the prior art is that photovoltaic switch board is needed with a set of low-voltage distribution cabinet simultaneously
Net, energy-storage battery need and such single grid-connected connection modes such as another set of low-voltage distribution cabinet is grid-connected, causes low pressure to be matched somebody with somebody
Electric cabinet only has the function of single, and needs multiple low pressure to match somebody with somebody according to the synchronizing mode of this each individually designed low-voltage cabinet of system
Electric cabinet, so that the technical problem that cost improves.
For ease of understanding the present embodiment, first to a kind of distribution system disclosed in the utility model embodiment with
And low-voltage distribution system describes in detail.
Embodiment one：
A kind of distribution system that the utility model embodiment provides, as shown in Figure 1, distribution system 1 can include：Exchange is matched somebody with somebody
Electric cabinet 11, four-quadrant conversion cabinet 12, direct current charge-discharge cabinet 13, energy storage cabinet 14 and photovoltaic switch board 15.
As shown in Figure 1, AC power distribution cabinet/AC distribution panel 11, four-quadrant conversion cabinet 12, direct current charge-discharge cabinet 13, energy storage cabinet 14 and photovoltaic
It can be connected between switch board 15 with direct-current copper-bus by exchanging copper busbar and transmit electric energy.Four-quadrant converts one end of cabinet 12
It can be connected with AC power distribution cabinet/AC distribution panel 11, the other end can connect with direct current charge-discharge cabinet 13, energy storage cabinet 14 and photovoltaic switch board 15
Connect.
Specifically, exchange copper busbar can be ac bus copper bar, direct-current copper-bus can be direct-current copper-bus.Therefore,
Also may be used between AC power distribution cabinet/AC distribution panel 11, four-quadrant conversion cabinet 12, direct current charge-discharge cabinet 13, energy storage cabinet 14 and photovoltaic switch board 15
To connect all the way by ac bus copper bar all the way and in a manner of dc bus copper bar and transmit electric energy.
Turn it should be noted that AC power distribution cabinet/AC distribution panel 11 can be converted cabinet 12 by four-quadrant and be exchanged between direct current
Change, AC power distribution cabinet/AC distribution panel 11 can be used for providing electric energy to AC load, and direct current charge-discharge cabinet 13 can be by DCDC circuits to filling
Electric terminals carry out charge or discharge, and energy storage cabinet 14 can carry out charge or discharge, photovoltaic control by DCDC circuits to energy-storage battery
Cabinet 15 processed can be by controlling photovoltaic MPPT devices to carry out the power generation of photovoltaic battery panel.
As shown in Fig. 2, four-quadrant conversion cabinet 12 can be become by being arranged at the four-quadrant translation circuit i.e. four-quadrant of inside
Mold changing block 121,122 and first dc circuit breaker 123 of AC circuit breaker are exchanged the mutual conversion between direct current.Wherein,
Quadrant DC translation circuit can also be four-quadrant conversion module 121 or four-quadrant converter unit, and four-quadrant conversion cabinet 12 can
To pass through four-quadrant conversion module 121, it is possible to achieve rectification, inversion, inductive reactive power output, the function of capacitive reactive power output.
As a preferred solution, as shown in Fig. 2, being provided with the first DC/DC circuits and second in direct current charge-discharge cabinet 13
Dc circuit breaker 132.Wherein, the first DC/DC circuits can also be the first DC/DC modules 131.First DC/DC modules 131
One end can be connected with the second dc circuit breaker 132, and the other end can be connected with charging terminal, wherein, charging terminal can be
Electric automobile 21.
Further, as shown in Fig. 2, the 2nd DC/DC circuits 141 and the 3rd direct current interruption can be provided with energy storage cabinet 14
Device 142.Wherein, the 2nd DC/DC circuits can also be the 2nd DC/DC modules 141.One end of 2nd DC/DC modules 141 can be with
It is connected with the 3rd dc circuit breaker 142, the other end can be connected with energy-storage battery 22.
As shown in Fig. 2, the 4th dc circuit breaker 151 can be provided with photovoltaic switch board 15, the 4th dc circuit breaker 151
It is connected with photovoltaic MPPT devices.Wherein, photovoltaic MPPT devices can be photovoltaic MPPT solar panels 23.
For the prior art, conventional mode is that a set of low-voltage cabinet of photovoltaic is grid-connected, and a set of low-voltage cabinet of energy-storage battery is simultaneously
Net, a set of low-voltage cabinet of distribution system, power distribution cabinet only has simple function, and the individually designed low-voltage cabinet of each system, cost are very high.
In the present embodiment, increase an ac bus copper bar and a dc bus copper bar, by low-voltage alternating-current power distribution cabinet 11,
Four-quadrant conversion cabinet 12, direct current charge-discharge cabinet 13, energy storage cabinet 14 and photovoltaic switch board 15 combine, and realize and are exchanging
The mutual flowing of energy in busbar, dc bus.
Wherein, low-voltage distribution cabinet can possess function possessed by common electrical distribution system, be supplied to multichannel AC load
Electricity；Four-quadrant conversion cabinet 12 can realize alternating current and direct current two-way changing, and can realize no-power compensation function；Direct current charge-discharge cabinet 13
Built-in DC/DC modules, can connect charging terminal and realize to the progress charge and discharge control function of electric automobile 21；Built in energy storage cabinet 14
DC/DC modules, can connect energy-storage battery 22 and realize to the progress charge and discharge control function of energy-storage battery 22；Photovoltaic switch board 15 can
Photovoltaic MPPT devices are connected, are realized to photovoltaic MPPT control functions, and then realize the function of photovoltaic battery panel power generation.
In practical applications, the structure of alternating current and direct current busbar can also be easy to extension, when there is Fan Equipment access system
When, it can directly increase breaker newly and blower fan apparatus control device is connected on ac bus；When there is DC load access demand,
Breaker can directly be increased newly DC load is connected on dc bus.
Therefore, the low-voltage distribution cabinet of access ac bus, dc bus all the way all the way, it is clear in structure, realize low-voltage distribution,
Photovoltaic, automobile discharge and recharge, energy-storage system are effectively integrated by AC and DC busbar, realize the mutual of energy between each system
Flowing, reduces cost, while reduces the risk of transformer overload.
Embodiment two：
A kind of low-voltage distribution system that the utility model embodiment provides, as shown in figure 3, low-voltage distribution system 2 can wrap
Include：The distribution system that AC load 24, charging terminal, energy-storage battery 22, photovoltaic MPPT devices and above-described embodiment one provide.
Wherein, charging terminal can be electric automobile 21, and photovoltaic MPPT devices can be photovoltaic MPPT solar panels 23.
As shown in figure 3, AC load 24, electric automobile 21, energy-storage battery 22 and photovoltaic MPPT solar panels 23 can be with
It is connected with distribution system 1.One end of AC power distribution cabinet/AC distribution panel 11 in distribution system 1 can be connected with AC load 24, and the other end can
To be connected with the four-quadrant conversion cabinet 12 in distribution system 1.
As shown in figure 4, low-voltage distribution system 2 can also include：The transformer 25 being connected with AC power distribution cabinet/AC distribution panel 11.Exchange is matched somebody with somebody
At least three open circuits being connected respectively with AC load 24, transformer 25 and four-quadrant conversion cabinet 12 are provided with electric cabinet 11
Device：Breaker 111, frame circuit breaker 112, AC load breaker 113.
Wherein, transformer 25 can be 10kV/35kV transformers, and rated voltage is 380V.Transformer 25 passes through ABCN tetra-
Line is connected to AC power distribution cabinet/AC distribution panel 11, wherein, tri- line of A, B, C represents three-phase firewire, and N represents zero curve no-voltage.
In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, without
It is that therefore, other examples of exemplary embodiment can have different values as limitation.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
The low-voltage distribution system that the utility model embodiment provides, has identical with the distribution system that above-described embodiment provides
Technical characteristic, so can also solve identical technical problem, reach identical technique effect.
In addition, in the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the utility model.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or implying phase
To importance.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with
Realize by another way.Device embodiment described above is only schematical, for example, the division of the unit,
Only a kind of division of logic function, can there is other dividing mode when actually realizing, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
In network unit.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units integrate in a unit.
Finally it should be noted that：Embodiment described above, is only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to foregoing
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
For the technical staff in art field in the technical scope that the utility model discloses, it still can be to the skill described in previous embodiment
Art scheme is modified or can readily occur in change, or carries out equivalent substitution to which part technical characteristic；And these modifications,
Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical solution
Enclose, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model described should be wanted with right
Subject to the protection domain asked.
Claims (10)
- A kind of 1. distribution system, it is characterised in that including：AC power distribution cabinet/AC distribution panel, four-quadrant conversion cabinet, direct current charge-discharge cabinet, energy storage Cabinet and photovoltaic switch board；One end of four-quadrant conversion cabinet is connected with the AC power distribution cabinet/AC distribution panel, the other end and the direct current charge-discharge cabinet, described Energy storage cabinet and photovoltaic switch board connection；The AC power distribution cabinet/AC distribution panel, four-quadrant conversion cabinet, the direct current charge-discharge cabinet, the energy storage cabinet and the photovoltaic control It is connected between cabinet processed with direct-current copper-bus by exchanging copper busbar and transmits electric energy；The AC power distribution cabinet/AC distribution panel is exchanged the conversion between direct current by four-quadrant conversion cabinet；The AC power distribution cabinet/AC distribution panel is used to provide electric energy to AC load；The direct current charge-discharge cabinet carries out charge or discharge by DCDC circuits to charging terminal；The energy storage cabinet carries out charge or discharge by DCDC circuits to energy-storage battery；The photovoltaic switch board is by controlling photovoltaic MPPT devices to carry out the power generation of photovoltaic battery panel.
- 2. distribution system according to claim 1, it is characterised in that the four-quadrant conversion cabinet is by being arranged inside Four-quadrant translation circuit, AC circuit breaker and the first dc circuit breaker are exchanged the mutual conversion between direct current.
- 3. distribution system according to claim 1, it is characterised in that be provided with the first DCDC in the direct current charge-discharge cabinet Circuit and the second dc circuit breaker；One end of the first DCDC circuits is connected with second dc circuit breaker, and the other end is connected with charging terminal.
- 4. distribution system according to claim 1, it is characterised in that be provided with the energy storage cabinet the 2nd DCDC circuits with 3rd dc circuit breaker；One end of the 2nd DCDC circuits is connected with the 3rd dc circuit breaker, and the other end is connected with energy-storage battery.
- 5. distribution system according to claim 1, it is characterised in that be provided with the 4th direct current in the photovoltaic switch board and break Road device.
- 6. distribution system according to claim 5, it is characterised in that the 4th dc circuit breaker and photovoltaic MPPT devices Connection.
- A kind of 7. low-voltage distribution system, it is characterised in that including：AC load, charging terminal, energy-storage battery, photovoltaic MPPT dresses Put and such as claim 1-6 any one of them distribution systems；The AC load, the charging terminal, the energy-storage battery and the photovoltaic MPPT devices with the power distribution system System connection.
- 8. low-voltage distribution system according to claim 7, it is characterised in that AC power distribution cabinet/AC distribution panel in the distribution system One end is connected with the AC load, and the other end is connected with the four-quadrant conversion cabinet in the distribution system.
- 9. low-voltage distribution system according to claim 8, it is characterised in that further include：It is connected with the AC power distribution cabinet/AC distribution panel Transformer.
- 10. low-voltage distribution system according to claim 9, it is characterised in that difference is provided with the AC power distribution cabinet/AC distribution panel At least three breakers being connected with the AC load, the transformer and the four-quadrant conversion cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135193.7U CN207304020U (en) | 2017-09-05 | 2017-09-05 | Distribution system and low-voltage distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135193.7U CN207304020U (en) | 2017-09-05 | 2017-09-05 | Distribution system and low-voltage distribution system |
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| Publication Number | Publication Date |
|---|---|
| CN207304020U true CN207304020U (en) | 2018-05-01 |
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ID=62445618
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721135193.7U Active CN207304020U (en) | 2017-09-05 | 2017-09-05 | Distribution system and low-voltage distribution system |
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| Country | Link |
|---|---|
| CN (1) | CN207304020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380401A (en) * | 2019-08-27 | 2019-10-25 | 河南省水利勘测设计研究有限公司 | Town road direct current concentration-distributed distribution system |
-
2017
- 2017-09-05 CN CN201721135193.7U patent/CN207304020U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380401A (en) * | 2019-08-27 | 2019-10-25 | 河南省水利勘测设计研究有限公司 | Town road direct current concentration-distributed distribution system |
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