CN206195713U - Solar photovoltaic power generation system - Google Patents
Solar photovoltaic power generation system Download PDFInfo
- Publication number
- CN206195713U CN206195713U CN201621256870.6U CN201621256870U CN206195713U CN 206195713 U CN206195713 U CN 206195713U CN 201621256870 U CN201621256870 U CN 201621256870U CN 206195713 U CN206195713 U CN 206195713U
- Authority
- CN
- China
- Prior art keywords
- lightning
- inverter
- solar photovoltaic
- generation system
- box
- 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.)
- Withdrawn - After Issue
Links
- 238000010248 power generation Methods 0.000 title abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000001012 protector Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 2
- 208000025274 Lightning injury Diseases 0.000 abstract 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 8
- 230000006698 induction Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000033999 Device damage Diseases 0.000 description 2
- 206010042255 Struck by lightning Diseases 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001052 transient effect Effects 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides a solar photovoltaic power generation system, include: the solar photovoltaic array, the direct current grounding box, the inverter, the alternating current distribution box, the equipotential connecting bar, the grounding body, the junction box and the distribution board; the solar photovoltaic array, the direct current grounding box, the inverter and the alternating current distribution box are sequentially connected, and lightning protection elements are dispersedly installed in a connecting circuit of the solar photovoltaic array; the metal outer frame of the solar photovoltaic array and the metal shells of the direct current grounding box, the inverter and the alternating current distribution box are respectively connected with a grounding body through an equipotential connecting bar; the output end of the alternating current distribution box is connected with a junction box, and the junction box is connected with a distribution board; and the cable between the solar photovoltaic array and the direct current grounding box, the cable between the direct current grounding box and the inverter and the cable between the inverter and the alternating current distribution box are indirectly connected to the equipotential connecting bar through lightning protection elements respectively. According to the scheme, the damage of lightning stroke to the solar photovoltaic power generation system can be effectively prevented.
Description
Technical field
The utility model is related to solar-photovoltaic technology field, more particularly to a kind of solar photovoltaic generation system.
Background technology
Currently, global energy is in short supply, and people more and more begin to use new, green, the environmentally friendly energy as tradition
The supplement and substitute of the energy, solar energy are exactly one kind therein.Solar photovoltaic generation system, abbreviation PV systems are a kind of
Using the photovoltaic effect of semiconductor, solar radiation can be directly changed into the system of electric energy, solar photovoltaic generation system base
Originally it is divided into two major classes, respectively Independent Power Generation type and grid-connected.Solar photovoltaic generation system is used as a kind of emerging hair
Electric system has received much concern and extensive use in energy power field.
Because the distribution area of solar battery array is big, and installed in the outdoor without covering, therefore easily it is subject to
The too high voltages influence that thunder and lightning causes, causes photovoltaic generating system to damage, it is therefore necessary to take corresponding lightning protection measures.
Utility model content
In view of this, the utility model provides a kind of solar photovoltaic generation system, can be more effectively prevented from thunderbolt right
The infringement of solar photovoltaic generation system.
According to first aspect of the present utility model, there is provided a kind of solar photovoltaic generation system, the system includes the sun
Can photovoltaic array, DC earthing case, inverter, A.C. distribution box, equipotential link row, grounding body, junction box and distribution board；
The photovoltaic array, DC earthing case, inverter and A.C. distribution box are sequentially connected, the photovoltaic array
Connection line in dispersion lightning-arrest element is installed；The metal outer frame of the photovoltaic array and the DC earthing
The metal shell of case, inverter and A.C. distribution box is arranged by equipotential link be connected with grounding body respectively；The AC distribution
The output end of case is connected with the junction box, and the junction box connects the distribution board；The photovoltaic array and institute
State the cable between DC earthing case, the cable between the DC earthing case and the inverter and the inversion and institute
State the cable between A.C. distribution box and equipotential link row is accessed by lightning-arrest element indirectly respectively.
Further, the lightning-arrest element installed in the connection line of the photovoltaic array includes direct current surge protection
Device.
Further, it is also equipped with lightning protection transformer in the connection line of the photovoltaic array.
Further, direct current Surge Protector, the inverter and AC distribution are installed in the DC earthing case
Exchange Surge Protector is installed in case.
Further, capacitance-resistance overvoltage protection device is installed in the DC earthing case, inverter and A.C. distribution box.
Further, lightning-arrest element is installed in the distribution board.
Further, the output end of the distribution board is provided with the transformer of resistance to thunder.
Further, lightning-arrest element is installed in the junction box.
According to such scheme of the present utility model, lightning protection device is arranged in the link circuit of photovoltaic array, energy
The infringement that more efficiently protection thunderbolt is caused to solar battery array；Also, installed in photovoltaic array connection line anti-
Thunder transformer, the further intrusion of blocking lightning surge；In addition, by photovoltaic array, DC earthing case, inverter
And Surge Protector is installed in A.C. distribution box, it is to avoid the wink that the lightning surge invaded from DC line or alternating current circuit is caused
When overvoltage；For the lightning surge invaded from the low-voltage distributing line of solar photovoltaic generation system, by distribution board
Zinc oxide surge arresters are stopped, and can limiting device overvoltage numerical value, play a part of protection equipment；In distribution board outlet side
The transformer of resistance to thunder is installed, it is to avoid the high voltage that lightning ingress causes with electric loading to being caused damage.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing being further understood to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 shows the structural representation of the solar photovoltaic generation system according to the embodiment of the utility model one.
Specific embodiment
It is specific below in conjunction with the utility model to make the purpose of this utility model, technical scheme and advantage clearer
Embodiment and corresponding accompanying drawing are clearly and completely described to technical solutions of the utility model.Obviously, described embodiment
Only it is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this area
The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to the utility model
The scope of protection.
Fig. 1 being combined first and illustrating solar photovoltaic generation system of the present utility model, Fig. 1 is shown according to the utility model
The schematic diagram of the solar photovoltaic generation system of one embodiment.
As shown in figure 1, solar photovoltaic generation system of the present utility model, including photovoltaic array 11, direct current connects
Ground case 12, inverter 13, A.C. distribution box 14, equipotential link row 15, grounding body 16, junction box 17 and distribution board 18；Institute
Photovoltaic plate array 11, DC earthing case 12, inverter 13 and A.C. distribution box 14 is stated to be sequentially connected；The solar energy
Dispersion is provided with lightning-arrest element in the connection line of photovoltaic array 11；The metal outer frame of the photovoltaic array 11 and
The metal cabinet of the DC earthing case 12, inverter 13 and A.C. distribution box 14 arranges 15 with ground connection by equipotential link respectively
Body 16 is connected；Metal penetration pipe 19 is connected also by equipotential link row 15 with grounding body 16；The A.C. distribution box 14 it is defeated
Go out end to be connected with junction box 17, the connection distribution board 18 of the junction box 17；Photovoltaic array 11 and DC earthing case it
Between cable, the cable between the cable between DC earthing case 12 and inverter 13 and inverter 13 and A.C. distribution box
Equipotential link is accessed by lightning-arrest element 20 indirectly respectively and arranges 15.
Thunder and lightning is divided into direct lightning strike and induced lightening, direct lightning strike refer to fall directly on photovoltaic array, direct-flow distribution system,
Electric equipment and its distribution etc. and the nearby thunderbolt of surrounding.Induced lightening is also referred to as lightning induction or induced overvoltage, refer to
The thunderbolt that the annex of related building, equipment or circuit and farther place produce, causes the mistake of building, equipment and circuit
Voltage, the energy of induced lightening is much smaller than direct lightning strike, but odds is far above direct lightning strike.Induced lightening is divided into by electrostatic induction shape
Into thunder and the thunder that is formed by electromagnetic induction.The thunder formed by electrostatic induction, when powered cumulus is close to ground, due to single thunder
The unipolarity of cloud bar electricity, can always induce substantial amounts of reversed polarity bound charge on nigh metallic conductor, and metallic conductor
The electric charge with thunder and lightning peer property can be accordingly produced away from powered cumulus end, so that between metallic conductor and thundercloud, and metal
Conductor itself produces electrostatic potential (induced voltage) very high, the ground that the positive charge and thunderbolt that for example electric current sensing is produced are produced
With rear left formation lightning surge in the negative electrical charge of table；The thunder formed by electromagnetic induction is due to falling the thunderbolt near cable
The lightning current of generation makes cable induction form lightning surge.
Because photovoltaic array is to carry out serial or parallel connection according to certain design by polylith solar cell to form
, therefore by series/parallel circuit of the lightning-arrest element dispersion between solar cell in photovoltaic array 11, can more have
The infringement that the protection thunderbolt of effect ground is caused to photovoltaic array.
To prevent lightning induction, all metal objects of photovoltaic system are carried out into equipotential link and (is arranged by equipotential link
15 connection grounding bodies 16) to reduce the potential difference between each metal position and each system, wherein, outside the metal of photovoltaic array 11
The uncharged metals such as the metal cabinet and metal penetration pipe of frame, DC earthing case 12, inverter 13 and A.C. distribution box 14
Part, is directly connected to equipotential link and arranges 15, by between photovoltaic array 11 and DC earthing case with wire respectively
The band such as the cable between cable, DC earthing case 12 and inverter 13 and the cable between inverter 13 and A.C. distribution box
Electric part accesses equipotential link and arranges 15 indirectly by lightning-arrest element 20 respectively.The lightning-arrest element 20 for example can be lightning protection
Device.
Solar photovoltaic generation system of the present utility model is described in detail with reference to accompanying drawing further below.
According to a specific embodiment of the present utility model, installed in the link circuit of the photovoltaic array 11
Lightning-arrest element includes direct current Surge Protector.
Because induced lightening can invade solar photovoltaic generation system along direct current incoming line, therefore, in photovoltaic battle array
Direct current Surge Protector can be used in row connection line, the abnormal voltage invaded from circuit is relaxed, lightning surge peak value is reduced.
Further, it is also equipped with lightning protection transformer in the link circuit of the photovoltaic array 11.
Lightning protection transformer is invaded based on shielding insulation transformer, additional arrester and capacitor in lightning surge
Occasion, because of the high-insulation between built-in arrester primary side and secondary side and shielding action, therefore in photovoltaic battle array
Lightning protection transformer is installed in the connection line of row, lightning surge can be blocked.
According to another specific embodiment of the present utility model, direct current surge protection is installed in the DC earthing case 12
Exchange Surge Protector is installed in device, the inverter 13 and A.C. distribution box 14.
Due to being the DC line do not changed through inverter inside DC earthing case, therefore, in DC earthing case
Direct current Surge Protector is installed in portion's circuit；Exchange surge protection is installed in the alternating current circuit of inverter and A.C. distribution box
Device.Surge Protector can be protected to the surge of indirect thunder and lightning and direct effects of lightning or other instantaneous overvoltages.Surge is protected
Shield device can turn on shunting within the extremely short time, so as to avoid infringement of the surge to other equipment in loop, mitigation from being invaded from circuit
The abnormal voltage for entering, reduces lightning surge peak value.
According to another specific embodiment of the present utility model, the DC earthing case 12, inverter 13 and exchange are matched somebody with somebody
Capacitance-resistance overvoltage protection device is installed in electronic box 14.
According to another specific embodiment of the present utility model, lightning-arrest element is installed in the distribution board 18.Solar energy
The intrusion path of the lightning surge of photovoltaic generating system, in addition to solar battery array, also distribution line, for matching somebody with somebody from low pressure
The lightning surge that electric line is invaded, can be stopped by installing lightning-arrest element in distribution board.
Wherein, the lightning-arrest element installed in distribution board is specifically as follows arrester, and arrester is in parallel with protected equipment,
Its gap breakdown voltage is forced down than protected apparatus insulated breakdown potential, and when normal working voltage is acted on, lightning arrester gap is not
Can be breakdown, and work as lightning surge and transmitted along wire, when there is jeopardizing the overvoltage by protection equipment, lightning arrester gap quickly by
Puncture, discharge over the ground, in substantial amounts of electric charge is all leaked into ground, so as to limit by the overvoltage numerical value of protection equipment, play guarantor
The effect of shield equipment, it is to avoid device damage.
According to another specific embodiment of the present utility model, the outlet side of the distribution board is provided with the transformer of resistance to thunder.
It is right to avoid thunderbolt from causing transient high voltage when solar energy photovoltaic system is struck by lightning due to distribution board connection electric loading
Caused damage with electric loading, the transformer of resistance to thunder is installed in distribution board outlet side, that is, in distribution board and use electric loading (user
Side) between the transformer of resistance to thunder is installed, it is to avoid the high voltage that lightning ingress causes with electric loading to being caused damage.
According to another specific embodiment of the present utility model, lightning-arrest element is installed in the junction box.The wiring
The lightning-arrest element installed in case can specifically include arrester, limit by the overvoltage numerical value of protection equipment, it is to avoid device damage.
Solar photovoltaic generation system of the present utility model is described above.According to above-mentioned side of the present utility model
Case, lightning-arrest element is arranged in the connection line of photovoltaic array, i.e., the circuit of series/parallel between solar cell
In, the infringement that thunder and lightning is caused to solar battery array can be more effectively prevented from.Also, in photovoltaic array connection line
Install lightning protection transformer additional, further the intrusion of blocking lightning surge；In addition, by photovoltaic array, DC earthing case,
In inverter and A.C. distribution box install Surge Protector and/or capacitance-resistance overvoltage protection device, it is to avoid from direct current incoming line,
The instantaneous overvoltage that the lightning surge that exchange outlet line is invaded is caused；For from solar photovoltaic generation system low-voltage distribution wire
The lightning surge that road invades, is stopped, and can limit by the overvoltage number of protection equipment by distribution board zinc oxide surge arresters
Value, plays a part of protection equipment；The transformer of resistance to thunder is installed in distribution board outlet side, it is to avoid the high voltage pair that lightning ingress causes
Caused damage with electric loading.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.For example, being provided with direct current Surge Protector, the inverter and A.C. distribution box in the DC earthing case
In exchange Surge Protector is installed；Also, it is also equipped with capacitance-resistance in the DC earthing case, inverter and A.C. distribution box
Overvoltage protection device, it is possible to achieve multi-stage protection, makes thunder-strike current by multistage lightning protection component earial drainage.
The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, any simple modification, equivalent variations and the modification made to above example according to technical spirit of the present utility model,
Still fall within the range of technical solutions of the utility model.
Claims (8)
1. a kind of solar photovoltaic generation system, it is characterised in that the system includes photovoltaic array, DC earthing
Case, inverter, A.C. distribution box, equipotential link row, grounding body, junction box and distribution board；The photovoltaic array,
DC earthing case, inverter and A.C. distribution box are sequentially connected, and peace is disperseed in the connection line of the photovoltaic array
Equipped with lightning-arrest element；The metal outer frame of the photovoltaic array and the DC earthing case, inverter and AC distribution
The metal shell of case is arranged by equipotential link be connected with grounding body respectively；The output end of the A.C. distribution box and the wiring
Case is connected, and the junction box connects the distribution board；Electricity between the photovoltaic array and the DC earthing case
Between cable and the inverter and the A.C. distribution box between cable, the DC earthing case and the inverter
Cable accesses equipotential link and arranges indirectly by lightning-arrest element respectively.
2. solar photovoltaic generation system as claimed in claim 1, it is characterised in that the connection of the photovoltaic array
The lightning-arrest element installed in circuit includes direct current Surge Protector.
3. solar photovoltaic generation system as claimed in claim 1 or 2, it is characterised in that the photovoltaic array
Lightning protection transformer is also equipped with connection line.
4. solar photovoltaic generation system as claimed in claim 1, it is characterised in that be provided with the DC earthing case straight
Exchange Surge Protector is installed in wandering surge protector, the inverter and A.C. distribution box.
5. solar photovoltaic generation system as claimed in claim 1, it is characterised in that the DC earthing case, inverter with
And capacitance-resistance overvoltage protection device is installed in A.C. distribution box.
6. solar photovoltaic generation system as claimed in claim 1, it is characterised in that lightning-arrest unit is provided with the distribution board
Part.
7. solar photovoltaic generation system as claimed in claim 1, it is characterised in that the output end of the distribution board is provided with
The transformer of resistance to thunder.
8. solar photovoltaic generation system as claimed in claim 1, it is characterised in that lightning-arrest unit is provided with the junction box
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621256870.6U CN206195713U (en) | 2016-11-15 | 2016-11-15 | Solar photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621256870.6U CN206195713U (en) | 2016-11-15 | 2016-11-15 | Solar photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195713U true CN206195713U (en) | 2017-05-24 |
Family
ID=58726344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621256870.6U Withdrawn - After Issue CN206195713U (en) | 2016-11-15 | 2016-11-15 | Solar photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656018A (en) * | 2016-11-15 | 2017-05-10 | 珠海格力电器股份有限公司 | Solar photovoltaic power generation system |
-
2016
- 2016-11-15 CN CN201621256870.6U patent/CN206195713U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656018A (en) * | 2016-11-15 | 2017-05-10 | 珠海格力电器股份有限公司 | Solar photovoltaic power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170524 Effective date of abandoning: 20181102 |