CN206116916U - Photovoltaic inverter - Google Patents
Photovoltaic inverter Download PDFInfo
- Publication number
- CN206116916U CN206116916U CN201621087000.0U CN201621087000U CN206116916U CN 206116916 U CN206116916 U CN 206116916U CN 201621087000 U CN201621087000 U CN 201621087000U CN 206116916 U CN206116916 U CN 206116916U
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- CN
- China
- Prior art keywords
- copper bar
- photovoltaic
- power
- inlet wire
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 87
- 229910052802 copper Inorganic materials 0.000 claims abstract description 87
- 239000010949 copper Substances 0.000 claims abstract description 87
- 238000001816 cooling Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- 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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- Inverter Devices (AREA)
Abstract
The utility model relates to a photovoltaic inverter, include rack and the direct -current power distribution unit and the power inverter unit that lie in the rack, direct -current power distribution unit includes direct current breaker, and direct current breaker lies in each and is connected with the power module on the road and after converging branch current, and each direct current breaker's positive negative pole is connected with the inlet wire copper bar. Adopt the utility model discloses a photovoltaic inverter, direct current breaker pass through the connection of electric lines of inlet wire copper bar and photovoltaic cell board, and it is all very convenient to work a telephone switchboard, take out stitches, solve the problem loaded down with trivial details, the connection difficulty of working a telephone switchboard when the tradition is connected. Furtherly, the positive negative pole of inlet wire copper bar is clearly demarcated, easily recognizes during the connection, is difficult for connecing the mistake, adopts the copper bar that converges to connect between inside each electrical unit of dc -to -ac converter, not only saves cable but also overall arrangement compactness, saves space.
Description
Technical field
The utility model is related to DC power distribution cabinet and inverter technology field, and in particular to a kind of photovoltaic DC-to-AC converter.
Background technology
In photovoltaic plant, DC power distribution cabinet and photovoltaic DC-to-AC converter are two independent equipment, and both pass through cable connection.
This connected mode increased cable cost and line loss, and overall occupancy volume is larger, and system electric elements are lengthy and jumbled various, cloth
Put, install, safeguarding etc. costly, and the easy both positive and negative polarity reversal connection when equipment connects, damage power station equipment, jeopardize workmen
Safety.
It is inverse that Authorization Notice No. discloses a kind of photovoltaic of integrated DC power supply unit for the Chinese patent of CN203851043U
Become device, with the occupancy volume for solving to exist when DC power distribution cabinet and inverter split are arranged it is big, system is lengthy and jumbled the problems such as.Its rack
It is divided into the left and right sides, left side cabinet is respectively from bottom to top Direct Current Distribution Unit, dc circuit breaker, power inverting unit, control list
Unit and heat-sink unit, right cabinet is respectively from top to bottom heat-sink unit, control power supply unit and exchanges output unit.Wherein control
Unit is used to control the operation of cooling fan, and control power supply unit is connected and to control unit distribution with control unit.The photovoltaic
Inverter can realize the integrated of DC power distribution cabinet and inverter, but there is also problems with：Direct Current Distribution Unit is straight with outside
Typically connected using cable when stream power supply unit or component connect, need to connect electric wire Direct Current Distribution Unit, this connected mode
The problems such as not only connecting loaded down with trivial details, wiring difficult, and there is also mixed and disorderly cable, difficult arrangement.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic DC-to-AC converter, to solve existing Direct Current Distribution Unit with outside
The loaded down with trivial details difficult technical problem of wiring that DC suppling equipment or component are existed when being connected by cable.
For achieving the above object, the technical solution of the utility model is：A kind of photovoltaic DC-to-AC converter, including rack and positioned at machine
Direct Current Distribution Unit and power inverting unit in cabinet, Direct Current Distribution Unit includes dc circuit breaker, and dc circuit breaker is located at each
It is connected with power model after confluxing on branch road and by branch current, the both positive and negative polarity of each dc circuit breaker is connected with inlet wire copper bar.
Using photovoltaic DC-to-AC converter of the present utility model, the dc circuit breaker of Direct Current Distribution Unit is powered by inlet wire copper bar and external dc
Equipment connects, and wiring, takes out stitches all easily, solves the problems, such as during tradition connection that wiring is loaded down with trivial details, connection difficulty.
Further, on the basis of each dc circuit breaker is connected by inlet wire copper bar with external dc power supply unit,
The positive pole inlet wire copper bar of each dc circuit breaker constitutes positive pole copper bar group, the negative pole inlet wire copper bar structure of each dc circuit breaker
Into negative pole copper bar group, positive pole copper bar group and negative pole copper bar group are staggeredly arranged on fore-and-aft direction and/or above-below direction.Positive pole inlet wire
Copper bar is clearly separated with negative pole inlet wire copper bar, and make positive pole copper bar group and negative pole copper bar group respectively be located at different regions, make into
Positive and negative extremely easy identification when line connects, is not in the phenomenon of reversed wrong.
Further, it is connected with external dc power supply unit by inlet wire copper bar in each dc circuit breaker, and inlet wire copper
The positive and negative electrode copper bar group of row staggers on the basis of setting on fore-and-aft direction and/or above-below direction, and the rack is divided into left side work(
Rate cabinet exchanges cabinet with right side, and positive and negative electrode copper bar group staggers in the longitudinal direction, and the positive pole copper bar group is located at after power cabinet
Portion, the negative pole copper bar group is located at the front portion of power cabinet.Arrangement is not only to more preferably distinguish both positive and negative polarity before and after both positive and negative polarity, it is to avoid connect
Malfunction during line, and the front and rear wiring of rack is also more convenient.
Further, it is connected with external dc power supply unit by inlet wire copper bar in each dc circuit breaker, and inlet wire copper
The positive pole copper bar group of row is located at power cabinet rear portion, negative pole copper bar group and is located on the basis of power cabinet front portion, the inlet wire copper bar position
In the bottom of the power cabinet.Because cable is usually from bottom wiring and from bottom through inverter, by inlet wire copper bar arrangement
In the bottom of left side power cabinet so that inlet wire is convenient.
Further, on the basis of each dc circuit breaker is connected by inlet wire copper bar with external dc power supply unit,
The dc circuit breaker is confluxed by copper bar and is connected with the input of power model.This mode connects relative to conventionally employed cable
The mode for connecing, saves cable and material cost, space layout more concision and compact.
Further, it is connected with external dc power supply unit by inlet wire copper bar in each dc circuit breaker, and direct current is disconnected
On the basis of road device is confluxed and be connected with the input of power model by copper bar, photovoltaic DC-to-AC converter also includes being arranged in rack
A.C. contactor, exchange output breaker and exchange output unit, power model, A.C. contactor, exchange export breaker
Connected using copper bar at least one and exchange output unit between.Connection between electric appliance unit is realized using confluence copper bar,
This mode not only saves cable but also compact in design, save space.
Further, it is connected with external dc power supply unit by inlet wire copper bar in each dc circuit breaker, direct current interruption
On the basis of device is confluxed and be connected with the input of power model by copper bar, the power model, A.C. contactor, exchange defeated
Go out between breaker and exchange output unit and connected using confluence copper bar.Using remittance between each electric appliance unit of inverter internal
The connection that stream copper bar is realized, saves cable and compact in design, the advantage of save space, all using remittance because confluence copper bar has
Stream copper bar connection will make inner space maximization be simplified, make layout more compact, clean and tidy.
Further, on the basis of each dc circuit breaker is connected by inlet wire copper bar with external dc power supply unit,
The power model rear side arranges the cooling fan of promising power model and the radiating of inverter body.Cooling fan is arranged in power
After module, directly the power model of main heating can be radiated, while also can produce to the components and parts of other in power cabinet
Heat radiated.
Description of the drawings
Fig. 1 is the utility model photovoltaic DC-to-AC converter specific embodiment main view internal structure schematic diagram；
Fig. 2 is the left view internal structure schematic diagram of Fig. 1；
Fig. 3 is the vertical view internal structure schematic diagram of Fig. 1；
In figure：1- inlet wire copper bars, 2- dc circuit breakers, 3- confluence copper bars, 4- power models, 5- power inverting units, 6-
Module control unit, 7- cooling fans, 8- master control control units, 9- A.C. contactors, 10- exchange output breakers, 11- exchanges
Output unit.
Specific embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of photovoltaic DC-to-AC converter of the present utility model, as shown in Figure 1 to Figure 3, including rack, rack is divided into a left side
The power cabinet of side exchanges cabinet with right side.It is disposed with Direct Current Distribution Unit and power model 4 in power cabinet from bottom to top, also wraps
The cooling fan 7 positioned at power model rear portion is included, for for the radiating of power model 4 and whole inverter internal electric elements.
Exchange cabinet has been sequentially arranged from top to bottom master control control unit 8, A.C. contactor 9, exchange output breaker 10 and has exchanged output
Unit 11.
Direct Current Distribution Unit includes the inlet wire copper bar 1 for being located at direct-flow input end and the direct current interruption being connected with inlet wire copper bar 1
Device 2.Inlet wire copper bar 1 is the input of whole photovoltaic DC-to-AC converter, and for outside header box or component DC supply input, copper bar is not only
Save space and do not result in that circuit is chaotic, circuit is divided into eight tunnels by copper bar, with the pressure that the electric current for sharing bus is larger.Directly
Stream input is located at the bottom of left side power cabinet, in order to convenient from bottom inlet wire.
The positive terminal copper bar of the dc circuit breaker 2 of each branch road constitutes positive pole copper bar group, the dc circuit breaker 2 of each branch road
Negative pole inlet wire copper bar constitutes negative pole copper bar group, and positive and negative electrode copper bar group is using the arrangement staggered on fore-and-aft direction, and positive pole copper
Row's group is arranged in the rear portion of power cabinet, and negative pole copper bar group is arranged in the front portion of power cabinet, to avoid positive and negative during wiring being easy to connect
The security incident for instead resulting in, in other embodiments, positive and negative electrode copper bar group may also be employed the arrangement side staggered on above-below direction
Formula or the arrangement staggered respectively using fore-and-aft direction and above-below direction, can be specifically arranged in positive pole copper bar group before power cabinet
Portion, by negative pole copper bar group the rear portion of power cabinet is arranged in, or positive pole copper bar group and negative pole copper bar group are arranged in power cabinet
Bottom and sidepiece.Inlet wire copper bar 1 is arranged in the bottom of power cabinet, in order to be more convenient during inlet wire.Dc circuit breaker 2 and inlet wire
Copper bar 1 is connected, and is respectively provided on eight branch roads divided in inlet wire copper bar 1.
Power model 4 includes power inverting unit 5 and module control unit 6, and wherein module control unit is inverse positioned at power
Become the bottom of unit 5.Power inverting unit 5 is connected with the dc circuit breaker 2 of eight branch roads by direct current confluence copper bar 3, this side
Formula not only saves the space in casing, and rationally distributed, the safe and reliable, easy-to-connect of connection is easy to operate.Module control unit 6
The IGBT with power inverting unit 5 and the connection of cooling fan 7 are realized also by confluence copper bar 3, is responsible for the signal of power model 4
Transmission.
On right side, exchange upper part in cabinet is disposed with inverter master control control unit 8, the mainly responsible inversion of master control control unit 8
Device input and output signal transacting and communicate with monitoring backstage.
A.C. contactor 9 is connected with turn in the bottom of master control control unit 8 and exchanges output breaker 10, to ensure exchange
The Safety output of output end.
Right side exchange cabinet inner bottom part is disposed with exchange output unit 11, is arranged in bottom and can facilitate and is connected with outside line.
Branch road dc circuit breaker 2, power model 4, A.C. contactor 9, exchange output breaker 10, exchange output unit 11
Connected using copper bar so that electrical equipment compact conformation in cabinet.In other embodiments, branch road dc circuit breaker 2, power
It is using copper bar connection at least one between module 4, A.C. contactor 9, exchange output breaker 10, exchange output unit 11
Space in cabinet can be saved, can be taken the circumstances into consideration to consider connect using copper bar between which electric appliance unit according to deployment scenarios.
The utility model photovoltaic DC-to-AC converter is in use：Traditional DC power distribution cabinet and inverter are become one,
Save space and very laborsaving in installation process, and the copper being provided separately using both positive and negative polarity due to direct current inlet wire input side
Row so that not error-prone during inlet wire wiring, improves wiring security.The end of incoming cables and leading-out terminal difference position of whole photovoltaic DC-to-AC converter
In the bottom of the left and right sides of rack so that line is very convenient when connecting.Outside header box or component direct current pass through into
The inlet wire of line copper bar 1, sequentially passes through dc circuit breaker 2, then through confluence copper bar 3 and power inverting unit 5 and module control unit 6
Connection, direct current is changed into alternating current after power inverting unit 5, then Jing confluence copper bars 3 pass sequentially through the He of A.C. contactor 9
Exchange output breaker 10, most after Jing exchange output unit 11 be changed into three-phase alternating current electricity output.
Claims (8)
1. a kind of photovoltaic DC-to-AC converter, including rack and the Direct Current Distribution Unit in rack and power inverting unit, direct current is matched somebody with somebody
Electric unit includes dc circuit breaker, and dc circuit breaker is located on each branch road and after branch current is confluxed and is connected with power model,
It is characterized in that：The both positive and negative polarity of each dc circuit breaker is connected with inlet wire copper bar.
2. photovoltaic DC-to-AC converter according to claim 1, it is characterised in that：The positive pole inlet wire copper of each dc circuit breaker
Row constitutes positive pole copper bar group, and the negative pole inlet wire copper bar of each dc circuit breaker constitutes negative pole copper bar group, positive pole copper bar group and negative pole
Copper bar group is staggeredly arranged on fore-and-aft direction and/or above-below direction.
3. photovoltaic DC-to-AC converter according to claim 2, it is characterised in that：The rack is divided into left side power cabinet and right side is handed over
Stream cabinet, positive and negative electrode copper bar group staggers in the longitudinal direction, and the positive pole copper bar group is located at power cabinet rear portion, the negative pole copper
Row's group is positioned at the front portion of power cabinet.
4. photovoltaic DC-to-AC converter according to claim 3, it is characterised in that：The inlet wire copper bar is located at the bottom of the power cabinet
Portion.
5. the photovoltaic DC-to-AC converter according to any one of claim 1-4, it is characterised in that：The dc circuit breaker passes through copper bar
Conflux and be connected with the input of power model.
6. photovoltaic DC-to-AC converter according to claim 5, it is characterised in that：Photovoltaic DC-to-AC converter also includes being arranged in rack
A.C. contactor, exchange output breaker with exchange output unit, power model, A.C. contactor, exchange export breaker and
Connected using copper bar at least one between exchange output unit.
7. photovoltaic DC-to-AC converter according to claim 6, it is characterised in that：The power model, A.C. contactor, exchange are defeated
Go out between breaker and exchange output unit and connected using confluence copper bar.
8. the photovoltaic DC-to-AC converter according to claim 1,2,3,4,6 or 7, it is characterised in that：The power model rear side cloth
It is equipped with the cooling fan radiated for power model and inverter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087000.0U CN206116916U (en) | 2016-09-28 | 2016-09-28 | Photovoltaic inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087000.0U CN206116916U (en) | 2016-09-28 | 2016-09-28 | Photovoltaic inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116916U true CN206116916U (en) | 2017-04-19 |
Family
ID=58522043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621087000.0U Active CN206116916U (en) | 2016-09-28 | 2016-09-28 | Photovoltaic inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206116916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653349A (en) * | 2016-11-02 | 2017-05-10 | 浙江田中精机股份有限公司 | Winding equipment |
| CN107171571A (en) * | 2017-06-15 | 2017-09-15 | 特变电工西安电气科技有限公司 | A kind of inverter DC Module |
| CN109143112A (en) * | 2017-06-28 | 2019-01-04 | 许继电气股份有限公司 | One kind being suitable for new energy current transformer and tests high-power grid stimulating device |
-
2016
- 2016-09-28 CN CN201621087000.0U patent/CN206116916U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653349A (en) * | 2016-11-02 | 2017-05-10 | 浙江田中精机股份有限公司 | Winding equipment |
| CN106653349B (en) * | 2016-11-02 | 2018-04-17 | 浙江田中精机股份有限公司 | Spooling equipment |
| CN107171571A (en) * | 2017-06-15 | 2017-09-15 | 特变电工西安电气科技有限公司 | A kind of inverter DC Module |
| CN109143112A (en) * | 2017-06-28 | 2019-01-04 | 许继电气股份有限公司 | One kind being suitable for new energy current transformer and tests high-power grid stimulating device |
| CN109143112B (en) * | 2017-06-28 | 2022-05-20 | 许继电气股份有限公司 | High-power grid simulation device suitable for new energy converter experiments |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |