CN206117180U - Dc -to -ac converter networking system - Google Patents
Dc -to -ac converter networking system Download PDFInfo
- Publication number
- CN206117180U CN206117180U CN201620992428.3U CN201620992428U CN206117180U CN 206117180 U CN206117180 U CN 206117180U CN 201620992428 U CN201620992428 U CN 201620992428U CN 206117180 U CN206117180 U CN 206117180U
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- China
- Prior art keywords
- control circuit
- fuse
- distribution cabinet
- inverter
- communication control
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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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- Supply And Distribution Of Alternating Current (AREA)
- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a dc -to -ac converter networking system, including converging flow box, DC distribution cabinet and dc -to -ac converter, the flow box that converges includes branch road switching device, fuse, current detection circuit, communication control circuit, the DC distribution cabinet includes the circuit breaker, branch road switching device with correspond photovoltaic group cluster, the fuse is connected, the fuse is connected with DC distribution cabinet cutout ware, current detection circuit and fuse, communication control circuit connection, the communication control circuit is connected with the dc -to -ac converter. The utility model discloses the circuit breaker is exported in having removed collection flow box to circuit breaker only all the way between well collection flow box and the dc -to -ac converter, and the flow box front end that converges has increased branch road switching device, and flow box communication control circuit and the dc -to -ac converter of converging simultaneously links to each other, can carry out data communication, and the dc -to -ac converter can be to the control of threading off of a single individual circuit breaker in the DC distribution cabinet. The utility model discloses reduced redundant device, the cost is reduced improves system reliability.
Description
Technical field
This utility model is related to technical field of photovoltaic power generation, more particularly to a kind of inverter group network system.
Background technology
Photovoltaic generation is that luminous energy is directly translated into into a kind of technology of electric energy using the photovoltaic effect of quasiconductor.Mesh
Before, mainly there are two kinds of forms the country using photovoltaic generation, and one kind is the centralized inversion system of large-scale ground, another kind of distributed inverse
Change system.Wherein, the generating share of centralized photovoltaic plant account for more than 80%.But, converge in traditional centralized inversion system
Be respectively mounted a chopper in stream case and DC power distribution cabinet, and the configuration of the chopper in both is essentially identical, be for
The connection of header box and inverter is disconnected, therefore both have redundancy, increased system cost.From the angle analysis of system, work(
The power device connected in rate loop is more, and fault rate is higher, and system reliability is lower.And, header box and photovoltaic module it
Between be connected by protective tube, if single spur track group string is in header box internal short-circuit, after rear class chopper disconnects, protective tube can not and
Shi Di, effectively disjunction, photovoltaic battery panel still can not depart from malfunction, and poor reliability is very risky.
Utility model content
The purpose of this utility model is to solve background section above by a kind of inverter group network system to mention
Problem.
It is that, up to this purpose, this utility model is employed the following technical solutions：
A kind of inverter group network system, it includes header box, DC power distribution cabinet and inverter；The header box includes branch road
Break-up device, fuse, current detection circuit, communication control circuit；The DC power distribution cabinet includes chopper；The branch road point
Disconnected device connects with corresponding photovoltaic group string, fuse, and the fuse is connected with chopper in DC power distribution cabinet, the electric current inspection
Slowdown monitoring circuit is connected with fuse, communication control circuit, and the communication control circuit is connected with inverter.
Especially, the header box also includes control button；The control button electrically connects communication control circuit.
Especially, the branch road break-up device is from load-break switch or mechanical break-up device.
Especially, the communication control circuit includes wired communication module, wireless communication module；The wire communication module
Including RS232/485 communication modules, ethernet module；The wireless communication module include bluetooth module, infrared communication module,
Zigbee module, Wi-Fi module, 4G mixed-media network modules mixed-medias.
Especially, the DC power distribution cabinet integrated installation is in inverter.
The utility model proposes inverter group network system between header box and inverter only have a circuit breaker, remove
Chopper is exported in header box, header box front end increased branch road break-up device, while header box communication control circuit and inverse
Become device to be connected, row data communication can be entered, and inverter can carry out dropout control to single chopper in DC power distribution cabinet.This practicality
It is new to reduce redundancy device, cost is reduced, improve system reliability.
Description of the drawings
The inverter group network system structure chart that Fig. 1 is provided for this utility model embodiment.
Specific embodiment
For the ease of understanding this utility model, this utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, this utility model can come in many different forms real
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
Open the more thorough comprehensive of content understanding.It should be noted that when an element is considered as " connection " another element, it can
To be directly to another element or may be simultaneously present centering elements.Unless otherwise defined, institute used herein
Some technologies and scientific terminology are identical with the implication that those skilled in the art of the present utility model are generally understood that is belonged to.Herein
In term used in the description of the present utility model be intended merely to describe specific embodiment purpose, it is not intended that in
Limit this utility model.Term as used herein " and/or " include one or more related Listed Items arbitrary and
All of combination.
Refer to shown in Fig. 1, the inverter group network system structure chart that Fig. 1 is provided for this utility model embodiment.
Inverter group network system specifically includes header box 101, DC power distribution cabinet 102 and inverter 103 in the present embodiment；Institute
State header box 101 including branch road break-up device (QS1, QS2 ... QSn), fuse (F1, F1 ... Fn), current detection circuit 104,
Communication control circuit 105；The DC power distribution cabinet 102 includes chopper 106；The branch road break-up device (QS1, QS2 ... QSn)
Photovoltaic group string (PV1, PV2 ... PVn) connection corresponding with fuse blows device (F1, F1 ... Fn), photovoltaic battery panel 107, it is described
Fuse (F1, F1 ... Fn) is connected with chopper 106 in DC power distribution cabinet 102, the current detection circuit 104 and fuse
(F1, F1 ... Fn), communication control circuit 105 connect, and the communication control circuit 105 is connected with inverter 103.The inverter
103 connection booster transformers 108.
In the present embodiment the header box 101 also includes control button.The control button electrical connection Communication Control electricity
Road 105.The branch road break-up device (QS1, QS2 ... QSn) is from load-break switch or mechanical break-up device.The communication control
Circuit processed 105 includes wired communication module, wireless communication module；The wire communication module include RS232/485 communication modules,
Ethernet module；The wireless communication module includes bluetooth module, infrared communication module, Zigbee module, Wi-Fi module, 4G
Mixed-media network modules mixed-media.
During work, if current detection circuit 104 detects this earth fault in header box 101, will be by communication control circuit
105 communicate with inverter 103, and the chopper 106 being connected with failure header box 101 in DC power distribution cabinet 102 is disconnected.Or it is inverse
When change device 103 detects a certain 101 failure of header box, the chopper 106 being attached thereto also can be actively disconnected.Serve traditional system
The effect of header box breaker protection in system.The branch road break-up device (QS1, QS2 ... QSn) increased in header box 101 improves
Security of system.When header box 101 needs to safeguard or internal appearance is short-circuit, after rear class chopper 106 disconnects, header box
It is still powered inside 101, directly pull open safety box and be likely to arcing, or even on fire, branch road break-up device (QS1, QS2 ...
QSn) there is band to carry breaking function, now guarantee header box by disconnecting the branch road break-up device (QS1, QS2 ... QSn) of front end
101 inside power down, play a very good protection to the safety of site operation personnel.
It is noted that the header box 101 in this utility model can be traditional photovoltaic combiner box, or band
There is the header box of MPPT functions.The branch road break-up device (QS1, QS2 ... QSn) of the front end of header box 101 can with electrical switch or
Other circuits are substituted, to realize the function of disjunction.This utility model can also retain the outlet side chopper of header box 101, remove and match somebody with somebody
Chopper 106 in electric cabinet, realizes identical disjunction effect.The DC power distribution cabinet can be with individualism, it is also possible to integrated peace
In being mounted in inverter.
This utility model removes outlet side chopper in header box 101, by 106 points of chopper in DC power distribution cabinet 102
The connection of disconnected header box 101 and inverter 103；Inverter 103 can carry out list to each chopper 106 in DC power distribution cabinet 102
Solely thread off and control；Header box 101 can be communicated with inverter 103；Increase button in header box 101 to control chopper 106
Thread off.
There was only a circuit breaker 106 in the technical solution of the utility model between header box 101 and inverter 103, remove
Chopper is exported in header box 101, the front end of header box 101 increased branch road break-up device (QS1, QS2 ... QSn), while converging
The stream communication control circuit 105 of case 101 is connected with inverter 103, can enter row data communication, and inverter 103 can be to DC distribution
Single chopper 106 carries out dropout control in cabinet 102.This utility model reduces redundancy device, reduces cost, improves system
Reliability.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, this utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although by above example
This utility model is described in further detail, but this utility model is not limited only to above example, without departing from
In the case that this utility model is conceived, more other Equivalent embodiments can also be included, and scope of the present utility model is by appended
Right determine.
Claims (5)
1. a kind of inverter group network system, it is characterised in that including header box, DC power distribution cabinet and inverter；The header box
Including branch road break-up device, fuse, current detection circuit, communication control circuit；The DC power distribution cabinet includes chopper；Institute
State branch road break-up device to connect with corresponding photovoltaic group string, fuse, the fuse is connected with chopper in DC power distribution cabinet, institute
State current detection circuit to be connected with fuse, communication control circuit, the communication control circuit is connected with inverter.
2. inverter group network system according to claim 1, it is characterised in that the header box also includes control button；
The control button electrically connects communication control circuit.
3. inverter group network system according to claim 1, it is characterised in that the branch road break-up device from load every
Leave pass or mechanical break-up device.
4. inverter group network system according to claim 1, it is characterised in that the communication control circuit includes cable modem
News module, wireless communication module；The wire communication module includes RS232/485 communication modules, ethernet module；It is described wireless
Communication module includes bluetooth module, infrared communication module, Zigbee module, Wi-Fi module, 4G mixed-media network modules mixed-medias.
5. the inverter group network system according to one of Claims 1-4, it is characterised in that the DC power distribution cabinet is integrated
In inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992428.3U CN206117180U (en) | 2016-08-31 | 2016-08-31 | Dc -to -ac converter networking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992428.3U CN206117180U (en) | 2016-08-31 | 2016-08-31 | Dc -to -ac converter networking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206117180U true CN206117180U (en) | 2017-04-19 |
Family
ID=58516643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620992428.3U Active CN206117180U (en) | 2016-08-31 | 2016-08-31 | Dc -to -ac converter networking system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206117180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109544896A (en) * | 2018-11-05 | 2019-03-29 | 华北电力大学 | A kind of converged communication architectural framework of photovoltaic module distributed monitoring system |
-
2016
- 2016-08-31 CN CN201620992428.3U patent/CN206117180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109544896A (en) * | 2018-11-05 | 2019-03-29 | 华北电力大学 | A kind of converged communication architectural framework of photovoltaic module distributed monitoring system |
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