CN206211553U - A kind of Anti-reflux controller for photovoltaic generating system - Google Patents
A kind of Anti-reflux controller for photovoltaic generating system Download PDFInfo
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- CN206211553U CN206211553U CN201621232853.9U CN201621232853U CN206211553U CN 206211553 U CN206211553 U CN 206211553U CN 201621232853 U CN201621232853 U CN 201621232853U CN 206211553 U CN206211553 U CN 206211553U
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- photovoltaic
- circuit
- reflux controller
- adverse current
- detection
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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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Abstract
The utility model discloses a kind of Anti-reflux controller for photovoltaic generating system, the detection breakpoint of connection unit connection is crossed including photovoltaic power network and photovoltaic electric Netcom, described detection breakpoint one end is connected to load circuit by the first breaker, the detection breakpoint is connected to several photovoltaic DC-to-AC converters by the second breaker, the detection breakpoint is connected to Anti-reflux controller by connecting circuit, human-computer interaction module is provided with inside the Anti-reflux controller, described human-computer interaction module one end is connected to LED display screen, the current detector of detectable photovoltaic power network inside adverse current situation is provided with inside the Anti-reflux controller, being provided with inside the current detector can monitor the adverse current detection circuit of adverse current situation and can reduce generation backflow phenomena position power against flow control circuit.The utility model is installed using panel type, it is to avoid to the resources loss caused by whole circuitry cuts and waste, solved to multiloop anti-reverse flow control problem.
Description
Technical field
The utility model is related to a kind of Anti-reflux controller, specifically a kind of anti-reverse flow control for photovoltaic generating system
Device, belongs to technical field of electric power.
Background technology
In photovoltaic generating system, grid-connection cabinet/case is a kind of common photovoltaic controller switching equipment, and separate unit grid-connection cabinet is generally required
The identical input circuit of multiple functions is accessed simultaneously, and input circuit is unified again after confluxing to be connected to the grid, but there are many points
Cloth photovoltaic plant does not allow photovoltaic electric feed-in power network to ensure the stability and security of line voltage, only allows photovoltaic
Generating is generated power for their own use, when load capacity be less than generating capacity when, photovoltaic electric will certainly feed-in power network, once find photovoltaic electric feed-in
Power network, it is desirable to cut off grid-connected master switch or some loops, the purpose for preventing photovoltaic electric feed-in power network is reached with this, so that
Protection power grid security, also avoids energy waste, and another situation is Anti-reflux controller by load capacity and photovoltaic capacity
Analysis, certain inverter or a few inverters are linearly cut off in time so as to reach prevent photovoltaic electric to power network formed rush
Hit.
Existing Anti-reflux controller can only directly cut off whole loops, can not accomplish according to load capacity and photovoltaic
The analysis of capacity, linearly cuts off certain inverter or a few inverters in time；Existing Anti-reflux controller is general all only
Four tunnel identical loops can be accessed, has been exceeded four loops and has not just been realized above-mentioned functions, so many photovoltaic power stations
Using being restricted, the need for not adapting to photovoltaic art completely.Therefore, propose regarding to the issue above a kind of for photovoltaic generation
The Anti-reflux controller of system.
The content of the invention
The purpose of this utility model is that and provides a kind of for the anti-of photovoltaic generating system in order to solve the above problems
Upstream controller.
The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of counterflow-preventing for photovoltaic generating system
The detection breakpoint of connection unit connection is crossed by controller, including photovoltaic power network and photovoltaic electric Netcom, and described detection breakpoint one end leads to
Cross the first breaker and be connected to load circuit, the detection breakpoint is connected to several photovoltaic DC-to-AC converters by the second breaker,
The detection breakpoint is connected to Anti-reflux controller by connecting circuit, and man-machine interaction mould is provided with inside the Anti-reflux controller
Block, described human-computer interaction module one end is connected to LED display screen, is provided with inside the Anti-reflux controller in detectable photovoltaic power network
The current detector of portion's adverse current situation, be provided with inside the current detector can monitor adverse current situation adverse current detection circuit and can
There is backflow phenomena position power against flow control circuit to reduce.
Preferably, it is internal between the human-computer interaction module and LED display screen to be electrically connected with.
Preferably, it is bi-directionally connected between the adverse current detection circuit and inverse flow control circuit, and adverse current detection circuit and inverse
Flow control circuit is arranged on pcb board surface.
Preferably, the connection circuit is a kind of Ethernet connection circuit with serial line interface RS232/RS485.
Preferably, second breaker and photovoltaic DC-to-AC converter are one group of composition broken string loop.
The beneficial effects of the utility model are：The utility model is installed using panel type, is easy to apply in chest or cabinet
On son；Whole data display show using LED display screen, is easy to reading and observing system to run and operating state, by man-machine friendship
Mutual module can detect adverse current situation and sent to staff and warn in adverse current detection circuit, can be with before greater loss is caused
Cut-out circuit operation is carried out either manually or by the first breaker, the branch that backflow phenomena occurs can be reduced by inverse flow control circuit
The power of circuit, it is to avoid to the resources loss caused by whole circuitry cuts and waste, solves to multiloop counterflow-preventing control
Problem processed, whole adverse current detection circuit and inverse flow control circuit and other auxiliary circuits can be arranged on PCB so that whole
Individual device realizes that panel type is installed.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
In figure：1st, photovoltaic power network, 2, connection unit, 3, detection breakpoint, the 4, first breaker, 5, load circuit, 6, connection
Circuit, 7, current detector, 8, human-computer interaction module, 9, LED display screen, 10, Anti-reflux controller, 11, adverse current detection circuit,
12nd, inverse flow control circuit, the 13, second breaker, 14, photovoltaic DC-to-AC converter, 15, pcb board.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to shown in Fig. 1, a kind of Anti-reflux controller for photovoltaic generating system, including photovoltaic power network 1 and light
The detection breakpoint 3 that volt power network 1 is connected by connection unit 2, described detection one end of breakpoint 3 is connected to negative by the first breaker 4
Circuit 5 is carried, the detection breakpoint 3 is connected to several photovoltaic DC-to-AC converters 14 by the second breaker 13, and the detection breakpoint 3 leads to
Cross connection circuit 6 and be connected to Anti-reflux controller 10, human-computer interaction module 8 is provided with inside the Anti-reflux controller 10, it is described
The one end of human-computer interaction module 8 is connected to LED display screen 9, is provided with inside the Anti-reflux controller 10 inside detectable photovoltaic power network
The current detector 7 of adverse current situation, being provided with inside the current detector 7 can monitor the He of adverse current detection circuit 11 of adverse current situation
The inverse flow control circuit 12 that backflow phenomena position power occurs can be reduced.
It is internal between the human-computer interaction module 8 and LED display screen 9 as a kind of technical optimization scheme of the present utility model
It is electrically connected with, the display of data is realized by LED display screen 9, is easy to control.
As a kind of technical optimization scheme of the present utility model, the adverse current detection circuit 11 and inverse flow control circuit 12 it
Between be bi-directionally connected, and adverse current detection circuit 11 and inverse flow control circuit 12 are arranged on the surface of pcb board 15, are reduced by pcb board 15
The step of during installation, mitigate the installation of some more complicated circuits.
Used as a kind of technical optimization scheme of the present utility model, the connection circuit 6 is a kind of with serial line interface
The Ethernet connection circuit 6 of RS232/RS485, realizes transmitted data on network, is easy to the transmission of data.
Used as a kind of technical optimization scheme of the present utility model, second breaker 13 is one group with photovoltaic DC-to-AC converter 14
Composition broken string loop, is capable of achieving the power operation of single photovoltaic DC-to-AC converter 14.
The utility model when in use, carries out once electrification first, is powered to local load circuit 5 during once electrification,
When 10 receiving voltage electric current of Anti-reflux controller, whole Anti-reflux controller 10 is in holding state, by detecting breakpoint 3 pairs
Electric current and voltage are detected, after detecting that breakpoint 3 detects exception, staff shown by human-computer interaction module 8
It is alert, after Anti-reflux controller 10 is detected normally, after Anti-reflux controller 10 is incorporated into photovoltaic power network 1, when in current detector 7
When the adverse current detection circuit 11 in portion detects backflow phenomena, by 12 pairs of branch circuits of generation backflow phenomena of inverse flow control circuit
Drop power operation is carried out, while also open-circuit operation can be carried out by the branch circuit of 13 pairs of generation backflow phenomenas of the second breaker.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is limited by appended claims rather than described above, it is intended that will fall obtain containing with important document in claim
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (5)
1. a kind of Anti-reflux controller for photovoltaic generating system, including photovoltaic power network（1）And photovoltaic power network（1）By even
Order unit（2）The detection breakpoint of connection（3）, it is characterised in that：The detection breakpoint（3）One end passes through the first breaker（4）Even
It is connected to load circuit（5）, the detection breakpoint（3）By the second breaker（13）It is connected to several photovoltaic DC-to-AC converters（14）,
The detection breakpoint（3）By connecting circuit（6）It is connected to Anti-reflux controller（10）, the Anti-reflux controller（10）It is internal
It is provided with human-computer interaction module（8）, the human-computer interaction module（8）One end is connected to LED display screen（9）, the Anti-reflux controller
（10）Inside is provided with the current detector of detectable photovoltaic power network inside adverse current situation（7）, the current detector（7）Inside sets
There is the adverse current detection circuit that can monitor adverse current situation（11）Electricity is controlled with the adverse current that can reduce generation backflow phenomena position power
Road（12）.
2. a kind of Anti-reflux controller for photovoltaic generating system according to claim 1, it is characterised in that：The people
Machine interactive module（8）And LED display screen（9）Between internal be electrically connected with.
3. a kind of Anti-reflux controller for photovoltaic generating system according to claim 1, it is characterised in that：It is described inverse
Stream detection circuit（11）With inverse flow control circuit（12）Between be bi-directionally connected, and adverse current detection circuit（11）With inverse flow control circuit
（12）Installed in pcb board（15）Surface.
4. a kind of Anti-reflux controller for photovoltaic generating system according to claim 1, it is characterised in that：The company
Connect circuit（6）It is a kind of Ethernet connection circuit with serial line interface RS232/RS485（6）.
5. a kind of Anti-reflux controller for photovoltaic generating system according to claim 1, it is characterised in that：Described
Two breakers（13）With photovoltaic DC-to-AC converter（14）It is one group of composition broken string loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232853.9U CN206211553U (en) | 2016-11-17 | 2016-11-17 | A kind of Anti-reflux controller for photovoltaic generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621232853.9U CN206211553U (en) | 2016-11-17 | 2016-11-17 | A kind of Anti-reflux controller for photovoltaic generating system |
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| Publication Number | Publication Date |
|---|---|
| CN206211553U true CN206211553U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621232853.9U Active CN206211553U (en) | 2016-11-17 | 2016-11-17 | A kind of Anti-reflux controller for photovoltaic generating system |
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| Country | Link |
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| CN (1) | CN206211553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109309395A (en) * | 2017-07-28 | 2019-02-05 | 国网江苏省电力公司常州供电公司 | Region charging station control device containing generation of electricity by new energy |
-
2016
- 2016-11-17 CN CN201621232853.9U patent/CN206211553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109309395A (en) * | 2017-07-28 | 2019-02-05 | 国网江苏省电力公司常州供电公司 | Region charging station control device containing generation of electricity by new energy |
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