CN209562512U - A kind of photovoltaic system and detection system - Google Patents
A kind of photovoltaic system and detection system Download PDFInfo
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- CN209562512U CN209562512U CN201822143591.4U CN201822143591U CN209562512U CN 209562512 U CN209562512 U CN 209562512U CN 201822143591 U CN201822143591 U CN 201822143591U CN 209562512 U CN209562512 U CN 209562512U
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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
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Abstract
The disclosure provides a kind of photovoltaic system and detection system, is related to power supply unit, is able to solve existing EL detection and needs the problem of providing additional power supply to photovoltaic module.The photovoltaic system includes at least one photovoltaic module, the first converging equipment, Bidirectional variable-flow equipment and controller；First converging equipment is electrically connected with each photovoltaic module at least one photovoltaic module；Bidirectional variable-flow equipment is electrically connected with the first converging equipment and power grid respectively, and there is Bidirectional variable-flow equipment alternating current to turn direct current operating mode and converting direct current into alternate current operating mode；Controller is electrically connected with Bidirectional variable-flow equipment, for switching the operating mode of Bidirectional variable-flow equipment.
Description
Technical field
This disclosure relates to photovoltaic technology field more particularly to a kind of photovoltaic system and detection system.
Background technique
Since present photovoltaic plant is with a varied topography, such as fishing light is complementary, poultry light is complementary, distribution, conventional outdoor EL
(Electro Luminescence, electroluminescent) detection system, needs the power supply being additionally provided to photovoltaic module, and
Power supply can only once lie prostrate assembly power supply to monolithic or single optical crosstalk, every to have surveyed one photovoltaic module and just need to move power supply
The position of equipment increases tester's work load to lie prostrate assembly power supply to next piece or next optical crosstalk, reduces working efficiency.
Utility model content
The embodiment of the present disclosure provides a kind of photovoltaic system and detection system, is able to solve existing EL detection and needs to photovoltaic group
Part provides the problem of additional power supply.The technical solution is as follows:
According to the first aspect of the embodiments of the present disclosure, a kind of photovoltaic system is provided, comprising:
At least one photovoltaic module；
First converging equipment, the first converging equipment are electrically connected with each photovoltaic module at least one photovoltaic module；
Bidirectional variable-flow equipment, Bidirectional variable-flow equipment are electrically connected with the first converging equipment and power grid respectively, Bidirectional variable-flow equipment
Turn direct current operating mode and converting direct current into alternate current operating mode with alternating current；
Controller, for switching the operating mode of Bidirectional variable-flow equipment, controller is electrically connected with Bidirectional variable-flow equipment.
When the operating mode of controller control Bidirectional variable-flow equipment is the operating mode of converting direct current into alternate current, Mei Geguang
Bidirectional variable-flow equipment is given in the direct current that volt component generates output after the summarizing of the first converging equipment, and Bidirectional variable-flow equipment will be straight
Galvanic electricity accesses power grid after being converted into alternating current；It is that alternating current turns direct current in the operating mode of controller control Bidirectional variable-flow equipment
Operating mode when, rectification of the alternating current Jing Guo Bidirectional variable-flow equipment of power grid output handles to obtain direct current, and Bidirectional variable-flow is set
It is standby to export direct current to each photovoltaic module by the first converging equipment, electric energy is provided for all photovoltaic modulies, for photovoltaic
Component shines.The photovoltaic system utilizes two kinds of operating modes of Bidirectional variable-flow equipment, can not only realize the normal of photovoltaic module
Power generation, and can be that photovoltaic module all in Bidirectional variable-flow equipment is powered by the electric current that power grid exports, without being light
Volt component provides additional power supply, simplifies test job step, reduces equipment carrying amount, improves efficiency.
In the first possible implementation of first aspect, the photovoltaic system further include: the second converging equipment, second converges
Flow device is connected electrically between Bidirectional variable-flow equipment and power grid.
In the second possible implementation of the first aspect, the photovoltaic system further include:
Timer, for measuring the operating mode of duration and trigger controller switching Bidirectional variable-flow equipment, timer and control
Device electrical connection processed.
In a third possible implementation of the first aspect, the photovoltaic system further include:
Optical inductor, for sensing the operating mode of extraneous light intensity and trigger controller switching Bidirectional variable-flow equipment, light sensation
Device is answered to be electrically connected with the controller.
In the 4th kind of possible implementation of first aspect, the first converging equipment is direct current conflux case.
In the 5th kind of possible implementation of first aspect, Bidirectional variable-flow equipment is two-way inverter.
In the 6th kind of possible implementation of first aspect, the second converging equipment is box type transformer or exchange confluence
Case.
In small hydropower station, the second converging equipment chooses exchange header box, and Bidirectional variable-flow equipment or power-supply device is defeated
Electric current out is summarized；In large-scale power station, the second converging equipment chooses box type transformer, for High Level AC Voltage and low
Pressure alternating current is converted.
Second aspect, the embodiment of the present disclosure provide a kind of detection system, including EL detection device and first aspect and
Photovoltaic system described in any possible implementation of one side；
EL detection device is used to carry out EL detection to photovoltaic module when photovoltaic module shines.
In the first possible implementation of second aspect, which further includes unmanned plane, and EL detection device is hung
It is loaded on unmanned plane.
The detection system that the embodiment of the present disclosure provides controls the operating mode of Bidirectional variable-flow equipment by controller, not only
It can be realized the normal power generation of photovoltaic module, and be photovoltaic module all in Bidirectional variable-flow equipment by the electric energy of power grid output
It is powered, without providing additional power supply for photovoltaic module, simplifies test job step, reduce equipment carrying amount, mention
High efficiency；Meanwhile the detection system can guarantee long-term power supply, without being limited by power supply itself amount of capacity, and and unmanned plane
Sufficiently cooperation, improves the shooting efficiency of unmanned plane, realizes the rapidly and efficiently long-term test of various extreme terrains.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of structure chart for photovoltaic system that the embodiment of the present disclosure provides；
Fig. 2 is a kind of structure chart for photovoltaic system that the embodiment of the present disclosure provides；
Fig. 3 is a kind of working principle diagram for photovoltaic system that the embodiment of the present disclosure provides；
Fig. 4 is a kind of structure chart for detection system that the embodiment of the present disclosure provides.
In figure, 101. photovoltaic modulies, 102. first converging equipments, 103. Bidirectional variable-flow equipment, 104. controllers, 50. nothings
It is man-machine.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
The embodiment of the present disclosure provides a kind of photovoltaic system, as shown in Figure 1-3, the photovoltaic system includes: at least one photovoltaic
Component 101, the first converging equipment 102, Bidirectional variable-flow equipment 103 and controller 104.
Wherein, the first converging equipment 102 is electrically connected with each photovoltaic module 101 at least one photovoltaic module；It is two-way
Convertor equipment 103 is electrically connected with the first converging equipment 102 and power grid respectively, and there is Bidirectional variable-flow equipment alternating current to turn direct current electrician
Operation mode and converting direct current into alternate current operating mode；Controller 104 is electrically connected with Bidirectional variable-flow equipment 103, two-way for switching
The operating mode of convertor equipment 103.
It is the operating mode that alternating current converts direct current in the operating mode that controller 104 controls Bidirectional variable-flow equipment 103
When, rectification of the alternating current of power grid output Jing Guo Bidirectional variable-flow equipment 103 handles to obtain direct current, then, Bidirectional variable-flow equipment
103, by direct current electricity output to the first converging equipment 102, export after the first converging equipment 102 to each photovoltaic module
101, electric energy is provided for all photovoltaic modulies 101, makes 101 electroluminescent of photovoltaic module.In the embodiments of the present disclosure, without for
Photovoltaic module provides additional power supply, and by the rectification of Bidirectional variable-flow equipment, the alternating current of power grid is converted to direct current, for
Photovoltaic module shines, and simplifies test job step, reduces equipment carrying amount, improves efficiency.
When needing photovoltaic module normal power generation, the operating mode that controller 104 controls Bidirectional variable-flow equipment 103 is direct current
When the operating mode of electricity conversion alternating current, the direct current that each photovoltaic module 101 generates passes through summarizing for the first converging equipment 102
After export to Bidirectional variable-flow equipment 103, Bidirectional variable-flow equipment 103 will access power grid after converting direct-current power into alternating-current power.
When switch the operating mode of Bidirectional variable-flow equipment 103 for controller 104, timer or light sensation can be passed through
Device is answered to carry out trigger controller 104 to switch the operating mode of Bidirectional variable-flow equipment 103.It is specifically described below.
In one embodiment, photovoltaic system further include: timer, timer is electrically connected with controller 104, based on
It measures duration and trigger controller 104 switches the operating mode of Bidirectional variable-flow equipment 103.Illustratively, it can be set in timer
Time interval is set, it is every to pass through 12 if time interval is 12 hours (time interval is not limited to 12h, can according to the actual situation depending on)
Hour, trigger controller 104 switches the operating mode of Bidirectional variable-flow equipment 103.
In one embodiment, photovoltaic system further include: optical inductor, optical inductor are electrically connected with controller 104, are used
In the operating mode for sensing extraneous light intensity and the switching Bidirectional variable-flow equipment 103 of trigger controller 104.When optical inductor can not incude
When to light, the operating mode of Bidirectional variable-flow equipment 103 is switched to the Working mould that alternating current turns direct current by trigger controller 104
Formula, at this point, the alternating current of power grid output passes sequentially through Bidirectional variable-flow equipment 103, the first converging equipment 102 is photovoltaic module 101
Power supply, makes 101 electroluminescent of photovoltaic module.When optical inductor can sense light, trigger controller 104 is by Bidirectional variable-flow
The operating mode of equipment 103 is switched to the operating mode of converting direct current into alternate current, at this point, the generation of each photovoltaic module 101 is straight
Output is to Bidirectional variable-flow equipment 103 after the summarizing of the first converging equipment 102 for galvanic electricity, and Bidirectional variable-flow equipment 103 is by direct current
Power grid is accessed after being converted into alternating current.
As shown in Fig. 2, the photovoltaic system further include: the second converging equipment 105, the second converging equipment 105 are connected electrically in double
To between convertor equipment 103 and power grid.
In the embodiments of the present disclosure, the second converging equipment 105 includes box type transformer or exchange header box.
When the operating mode that controller 104 controls Bidirectional variable-flow equipment 103 is that alternating current turns the operating mode of direct current,
If the photovoltaic system is applied to large-scale power station, the second converging equipment 105 is box type transformer, and box type transformer is used for power grid
After the alternating current of output carries out decompression processing, export to Bidirectional variable-flow equipment 103；If the photovoltaic system is applied to small hydropower station
When, the second converging equipment 105 is exchange header box, and the alternating current that exchange header box is used to export in power grid converges through exchange header box
The General Logistics Department enters Bidirectional variable-flow equipment 103.
When the operating mode that controller 104 controls Bidirectional variable-flow equipment 103 is the operating mode of converting direct current into alternate current,
If the photovoltaic system is applied to large-scale power station, the second converging equipment 105 is box type transformer, and box type transformer is used for will be two-way
The alternating current that convertor equipment 103 exports accesses power grid after carrying out boosting processing；If the photovoltaic system is applied to small hydropower station, the
Two converging equipments 105 are exchange header box, and exchange header box is for summarizing the alternating current that Bidirectional variable-flow equipment 103 exports
After access power grid.
Based on Fig. 1 and photovoltaic system shown in Fig. 2, refering to what is shown in Fig. 3, the embodiment of the present disclosure is with the first converging equipment 102
For direct current conflux case, Bidirectional variable-flow equipment 103 is two-way inverter, for the second converging equipment 105 is box type transformer, to light
Volt component generating state and the two different states of electroluminescent detecting state are described.Certainly, when the second converging equipment 105
It is box for exchange confluence, it can be the description of box type transformer with reference to the second converging equipment 105, details are not described herein again.
Generating state: i.e. photovoltaic module normal power generation state, photovoltaic module generate direct current under irradiation by sunlight, pass through
Direct current cable is aggregated at direct current conflux case 102, then is aggregated at two-way inverter 103 by direct current cables, two-way inverter
Direct current is changed into alternating current by 103, is connected to the low-pressure side at box type transformer 105 by exchanging cable, is existed by boosting
The high-pressure side of box type transformer 105 exports, and accesses power grid by ac cable.
Test mode: i.e. EL detecting state, general EL detecting state time are night, photovoltaic module not generating state, this
When, the operating mode that controller 104 controls two-way inverter 103 is that alternating current converts direct current operating mode.Specifically, power grid
The alternating current of output is connected to the high-pressure side of box type transformer 105 by exchanging cable, by decompression from box type transformer 105
Low-pressure side exports alternating current, is connected to two-way inverter 103 by exchanging cable, alternating current is changed by two-way inverter 103
Direct current, then direct current conflux case 102 is connected to by direct current cable, direct current conflux case 102 is connected to photovoltaic by direct current cable
Component 101, photovoltaic module 101 generate electroluminescent effect in the case where being passed through direct current, issue near infrared light.
The utility model does not have particular/special requirement to the model of controller 104 and two-way inverter 103, takes notice of specific implementation
In example, the two-way inverter for being integrated with controller, model sunlight SC1000TS are selected.
Photovoltaic system provided in this embodiment, including at least one photovoltaic module；First converging equipment, the first converging equipment
It is electrically connected with each photovoltaic module at least one photovoltaic module；Bidirectional variable-flow equipment, Bidirectional variable-flow equipment is respectively with first
Converging equipment is connected with power grid, and Bidirectional variable-flow equipment turns direct current operating mode with alternating current and exchanges electrician with direct current conversion
Operation mode；Controller, controller are electrically connected with Bidirectional variable-flow equipment, and controller is used to switch the Working mould of Bidirectional variable-flow equipment
Formula.The photovoltaic system utilizes two kinds of operating modes of Bidirectional variable-flow equipment, can not only realize the normal power generation of photovoltaic module, and
And can be that photovoltaic module all in Bidirectional variable-flow equipment is powered by the electric current that power grid exports, without being mentioned for photovoltaic module
For additional power supply, simplify test job step, reduces equipment carrying amount, improve efficiency.
It is used for photovoltaic system based on what embodiment corresponding to Fig. 1 and Fig. 2 provided, the disclosure also provides a kind of detection system,
The detection system includes: photovoltaic system described in EL detection device and any corresponding embodiment of FIG. 1 to FIG. 2, EL detection device
For carrying out EL detection to photovoltaic module when photovoltaic module shines.
Specifically, when the operating mode of Bidirectional variable-flow equipment 103 is that alternating current turns direct current operating mode, power grid output
The direct current that handles of rectification of the alternating current Jing Guo Bidirectional variable-flow equipment 103, then, Bidirectional variable-flow equipment 103 is by direct current
Electricity output is to the first converging equipment 102, and output is all to each photovoltaic module 101 after the first converging equipment 102
Photovoltaic module 101 provides electric energy, and photovoltaic module 101 issues infrared light.At this point, the light that EL detection device is generated according to photovoltaic module
Signal detection photovoltaic whether there is defect, if any without damage caused by crack, fragment, fragmentation, rosin joint, evil mind black surround break grid or
Component defect leads to the abnormal phenomenon such as different switching efficiency monolithic battery.
As shown in figure 4, detecting for convenience to photovoltaic module in the power station in different terrain, the detection system is also
It include: unmanned plane 50, EL detection device carry reduces cost of labor in working efficiency on unmanned plane 50, can be improved in this way.
The detection system that the embodiment of the present disclosure provides can not only be real by controlling the operating mode of Bidirectional variable-flow equipment
The normal power generation of existing photovoltaic module, and be that photovoltaic module all in Bidirectional variable-flow equipment supplies by the electric energy of power grid output
Electricity simplifies test job step, reduces equipment carrying amount, improve efficiency without providing additional power supply for photovoltaic module；
Meanwhile the detection system can guarantee long-term power supply, sufficiently match without being limited by power supply itself amount of capacity, and with unmanned plane
It closes, improves the shooting efficiency of unmanned plane, realize the rapidly and efficiently long-term test of various extreme terrains.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (9)
1. a kind of photovoltaic system characterized by comprising
At least one photovoltaic module；
First converging equipment, first converging equipment are electrically connected with each photovoltaic module at least one described photovoltaic module
It connects；
Bidirectional variable-flow equipment, the Bidirectional variable-flow equipment are electrically connected with first converging equipment and power grid respectively；It is described two-way
There is convertor equipment alternating current to turn direct current operating mode and direct current conversion alternating current operating mode；
Controller, for switching the operating mode of the Bidirectional variable-flow equipment, the controller and Bidirectional variable-flow equipment electricity
Connection.
2. photovoltaic system according to claim 1, which is characterized in that the photovoltaic system further include: the second converging equipment,
Second converging equipment is connected electrically between the Bidirectional variable-flow equipment and power grid.
3. photovoltaic system according to claim 1, which is characterized in that the photovoltaic system further include:
Timer, for measuring duration and triggering the operating mode that the controller switches the Bidirectional variable-flow equipment；The meter
When device be electrically connected with the controller.
4. photovoltaic system according to claim 1, which is characterized in that the photovoltaic system further include:
Optical inductor, for sensing extraneous light intensity and triggering the operating mode that the controller switches the Bidirectional variable-flow equipment；
The optical inductor is electrically connected with the controller.
5. photovoltaic system according to claim 1, which is characterized in that first converging equipment is direct current conflux case.
6. photovoltaic system according to claim 1, which is characterized in that the Bidirectional variable-flow equipment is two-way inverter.
7. photovoltaic system according to claim 2, which is characterized in that second converging equipment is box type transformer or friendship
Flow header box.
8. a kind of detection system characterized by comprising
Photovoltaic system described in claim 1~7 any one；
EL detection device, for carrying out EL detection to the photovoltaic module when photovoltaic module shines.
9. detection system according to claim 8, which is characterized in that the detection system further includes unmanned plane, the EL
Detection device carry is on the unmanned plane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143591.4U CN209562512U (en) | 2018-12-19 | 2018-12-19 | A kind of photovoltaic system and detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143591.4U CN209562512U (en) | 2018-12-19 | 2018-12-19 | A kind of photovoltaic system and detection system |
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| CN209562512U true CN209562512U (en) | 2019-10-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912514A (en) * | 2019-12-04 | 2020-03-24 | 合肥阳光新能源科技有限公司 | Electroluminescent detection device and method |
| WO2021057268A1 (en) * | 2019-09-29 | 2021-04-01 | 华为技术有限公司 | Inverter, combiner box and photovoltaic system |
| CN113630088A (en) * | 2020-05-08 | 2021-11-09 | 台达电子工业股份有限公司 | Solar power generation system and detection method |
-
2018
- 2018-12-19 CN CN201822143591.4U patent/CN209562512U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057268A1 (en) * | 2019-09-29 | 2021-04-01 | 华为技术有限公司 | Inverter, combiner box and photovoltaic system |
| CN110912514A (en) * | 2019-12-04 | 2020-03-24 | 合肥阳光新能源科技有限公司 | Electroluminescent detection device and method |
| CN113630088A (en) * | 2020-05-08 | 2021-11-09 | 台达电子工业股份有限公司 | Solar power generation system and detection method |
| US11632076B2 (en) | 2020-05-08 | 2023-04-18 | Delta Electronics, Inc. | Solar power generation system and test method |
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