CN107659265A - Photovoltaic panel failure detector and system - Google Patents
Photovoltaic panel failure detector and system Download PDFInfo
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- CN107659265A CN107659265A CN201711104007.8A CN201711104007A CN107659265A CN 107659265 A CN107659265 A CN 107659265A CN 201711104007 A CN201711104007 A CN 201711104007A CN 107659265 A CN107659265 A CN 107659265A
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- 238000001514 detection method Methods 0.000 claims abstract description 81
- 238000004891 communication Methods 0.000 claims abstract description 38
- 238000003745 diagnosis Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 6
- 238000010422 painting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 23
- 230000008569 process Effects 0.000 abstract description 20
- 230000008901 benefit Effects 0.000 abstract description 15
- 230000005611 electricity Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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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 invention provides a kind of photovoltaic panel failure detector and system, it is related to fault detection technique field, applied to the photovoltaic panel group of series connection, photovoltaic panel failure detector includes controller, and multiple voltage detection modules, current detection module and the communication module being connected respectively with controller；Each voltage detection module is connected one to one by four-way connection and each photovoltaic panel in photovoltaic panel group, is sent for detecting the voltage data of photovoltaic panel, and by voltage data to controller；Current detection module is connected with photovoltaic panel group, is sent for detecting the current data of photovoltaic panel group, and by current data to controller；Controller is used to receive each voltage data and current data, and is sent by communication module to mobile terminal.Photovoltaic panel failure detector provided by the invention and system, fault detection efficiency can be improved, reduce influence of the detection process to power benefit.
Description
Technical field
The present invention relates to fault detection technique field, more particularly, to a kind of photovoltaic panel failure detector and system.
Background technology
Photovoltaic board component is the TRT that a kind of exposure will produce direct current in the sun, by almost all partly to lead
Thin body solid photovoltaic cell composition made of body material (such as silicon).
At present in large solar photovoltaic electricity generation system, the fault detect to photovoltaic panel is usually：Solar power generation is supervised
Control carries out fault location centrally through monitor and control facility, and Site Detection personnel in place, organize after photovoltaic panel powers off to each by certain by positioning
Individual photovoltaic panel is detected one by one, and changes the photovoltaic panel to break down.
Solar photovoltaic generation system has monitor and control facility, but can only navigate to each group of photovoltaic panel, it is impossible to which is detected
One photovoltaic panel breaks down, and must carry out outage detection during site examining and repairing, investigate one by one, and the repair method is cumbersome, inspection
It is low to survey efficiency；And with the increasingly increase of photovoltaic panel, the workload of maintainer can be increasing, and which not only adds labor
Power cost, the power benefit of solar power generation company is more had a strong impact on.
The content of the invention
In view of this, it is an object of the invention to provide a kind of photovoltaic panel failure detector and system, to improve failure
Detection efficiency, reduce influence of the detection process to power benefit.
In a first aspect, the embodiments of the invention provide a kind of photovoltaic panel failure detector, the photovoltaic panel applied to series connection
Group, the photovoltaic panel failure detector include controller, and the multiple voltage detecting moulds being connected respectively with the controller
Block, current detection module and communication module；
Each voltage detection module is corresponded by each photovoltaic panel in four-way connection and the photovoltaic panel group
Connection, sends to the controller for detecting the voltage data of the photovoltaic panel, and by the voltage data；The electric current inspection
Survey module to be connected with the photovoltaic panel group, sent for detecting the current data of the photovoltaic panel group, and by the current data
To the controller；
The controller is used to receive each voltage data and the current data, and is sent out by the communication module
Deliver to mobile terminal.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, institute
State controller to be additionally operable to judge whether each photovoltaic panel breaks down according to each voltage data of reception, Yi Jigen
Judge to whether there is virtual connection failure between the photovoltaic panel according to the current data of reception, and failure anticipation result is passed through into institute
Communication module is stated to send to the mobile terminal.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide second of first aspect
Possible embodiment, wherein, the controller includes calculator, comparator and the fault diagnosis module being sequentially connected with；
The calculator is used for the average voltage level for calculating each voltage data, and calculates each average voltage
The voltage difference of maximum average voltage level and each average voltage level in value；The comparator is used for the voltage
Whether difference is in the range of default voltage difference；The fault diagnosis module is used for when the voltage difference is not in default electricity
When in the range of pressure difference, determine that photovoltaic panel corresponding to the voltage difference breaks down；
The calculator is additionally operable to calculate the current differential of front and rear current value in the current data；The comparator is also used
In the current differential whether in the range of default current differential；The fault diagnosis module is additionally operable to work as the electric current
When difference is not in the range of the current differential, determine virtual connection failure be present between the photovoltaic panel.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the third of first aspect
Possible embodiment, wherein, the photovoltaic panel failure detector also includes audible-visual annunciator, the audible-visual annunciator and institute
State controller connection.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, often
The individual voltage detection module includes：Address scrambler and data transmission module；
The address scrambler is used to determine the address code of itself；The data transmission module respectively with the geocoding
Device connects with the controller.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, institute
Stating photovoltaic panel failure detector includes 24 voltage detection modules.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein, institute
State communication module include bluetooth communication, ethernet communication module, gsm communication module, one kind in GPRS communication modules or
It is a variety of.
Second aspect, the embodiment of the present invention also provide a kind of photovoltaic panel fault detection system, including mobile terminal and such as
Photovoltaic panel failure detector described in above-mentioned first aspect and its any possible embodiment；
The photovoltaic panel failure detector is connected with the communication of mobile terminal.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein, institute
Stating mobile terminal includes the one or more in mobile phone, tablet personal computer, notebook computer.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, wherein, institute
Stating mobile terminal also includes graphics module, and the graphics module is used to be painted according to the voltage data of each photovoltaic panel of reception
Voltage curve processed, and current curve is drawn according to the current data of reception.
The embodiment of the present invention brings following beneficial effect：
Photovoltaic panel failure detector provided in an embodiment of the present invention and system, applied to the photovoltaic panel group of series connection, photovoltaic
Plate failure detector includes controller, and be connected respectively with controller multiple voltage detection modules, current detection module
And communication module；Each voltage detection module is connected one to one by four-way connection and each photovoltaic panel in photovoltaic panel group,
Sent for detecting the voltage data of photovoltaic panel, and by voltage data to controller；Current detection module is connected with photovoltaic panel group,
Sent for detecting the current data of photovoltaic panel group, and by current data to controller；Controller is used to receive each voltage number
According to and current data, and sent by communication module to mobile terminal.So maintainer can be by mobile terminal easily
The voltage data of each photovoltaic panel and the current data of photovoltaic panel group are checked, and then can be according to the voltage data and electric current number
It is judged that photovoltaic panel group whether there is failure problems.Due to detect simultaneously each photovoltaic panel in photovoltaic panel group voltage data and
The current data of photovoltaic panel group, it is not necessary to detected one by one to each photovoltaic panel in photovoltaic panel group, therefore improve fault detect
Efficiency；Due to not needing power down process in above-mentioned detection process, it is possible to achieve the on-line checking of voltage x current, therefore reduce inspection
Influence of the survey process to power benefit.In summary, photovoltaic panel failure detector provided by the invention and system, event is improved
Hinder detection efficiency, reduce influence of the detection process to power benefit.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of photovoltaic panel failure detector provided in an embodiment of the present invention；
Fig. 2 is a kind of photovoltaic panel failure detector provided in an embodiment of the present invention and the connection diagram of photovoltaic panel group；
Fig. 3 is a kind of structural representation of controller provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of photovoltaic panel fault detection system provided in an embodiment of the present invention.
Icon：
101- controllers；102- voltage detection modules；103- current detection modules；104- communication modules；31- calculators；
32- comparators；33- fault diagnosis modules；41- photovoltaic panel failure detectors；42- mobile terminals.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Outage detection must be carried out when at present to photovoltaic panel site examining and repairing, is investigated one by one, the repair method is cumbersome, inspection
It is low to survey efficiency, based on this, the embodiments of the invention provide a kind of photovoltaic panel failure detector and system, can improve failure inspection
Efficiency is surveyed, reduces influence of the detection process to power benefit.
For ease of understanding the present embodiment, first to a kind of photovoltaic panel fault detect disclosed in the embodiment of the present invention
Device describes in detail.
Embodiment one：
Fig. 1 is a kind of structural representation of photovoltaic panel failure detector provided in an embodiment of the present invention, and the photovoltaic panel is former
Hinder the photovoltaic panel group that detection means is applied to series connection, as shown in figure 1, the photovoltaic panel failure detector includes controller 101, with
And multiple voltage detection modules 102, current detection module 103 and the communication module 104 being connected respectively with controller 101.
Fig. 2 is the connection diagram of a kind of photovoltaic panel failure detector provided in an embodiment of the present invention and photovoltaic panel group,
Connect as shown in Fig. 2 each voltage detection module 102 is corresponded by each photovoltaic panel in four-way connection and photovoltaic panel group
Connect, sent for detecting the voltage data of photovoltaic panel, and by voltage data to controller 101；Current detection module 103 and photovoltaic
Plate group connects, and is sent for detecting the current data of photovoltaic panel group, and by current data to controller 101；Controller 101 is used for
Each voltage data and current data are received, and is sent by communication module 104 to mobile terminal.
Specifically, it is contemplated that photovoltaic panel group generally comprises the photovoltaic panel of 22 to 24 series connection, therefore voltage detection module 102
It can be 24, can so meet use demand.Voltage detection module 102 is in parallel with corresponding photovoltaic panel, for detection light
The voltage data of plate is lied prostrate, and the voltage data with Self address code is sent to controller 101, wherein, the electricity of each photovoltaic panel
Pressure data include multiple magnitudes of voltage.Current detection module 103 is connected with photovoltaic panel group, for detecting the electric current number of photovoltaic panel group
According to the current data includes multiple current values changed over time.Controller 101 can be microcontroller, above-mentioned for receiving
Voltage data and current data with address code, and sent by communication module 104 to mobile terminal.Communication module 104 is wrapped
Include bluetooth communication, ethernet communication module, GSM (Global System for Mobile communication, the whole world
GSM) communication module, GPRS (General Packet Radio Service, general packet radio service technology)
One or more in communication module.It should be noted that controller 101 can be individually to separate with communication module 104
Element, or integrate in a unit.
Further, each above-mentioned voltage detection module 102 includes：Address scrambler and data transmission module.Address
Encoder is used to determine the address code of itself；Data transmission module is connected with address scrambler and controller 101 respectively, for from
Address scrambler obtains the address code of voltage detection module 102, and the voltage data of detection and address code are sent to controller
101.So, the voltage data that mobile terminal receives is corresponding with the address code of voltage detection module 102, and user can be with base area
Location code determines photovoltaic panel corresponding to voltage data.
Mobile terminal can be, but not limited to as electronic equipments such as mobile phone, tablet personal computer, notebook computers, and maintainer can be with
The voltage data of each photovoltaic panel and the current data of photovoltaic panel group are easily checked by mobile terminal, and then can basis
The voltage data and current data judge that photovoltaic panel group whether there is failure problems.It is each in photovoltaic panel group due to detecting simultaneously
The voltage data of photovoltaic panel and the current data of photovoltaic panel group, it is not necessary to each photovoltaic panel in photovoltaic panel group is detected one by one,
Therefore fault detection efficiency is improved；Due to not needing power down process in above-mentioned detection process, it is possible to achieve voltage x current
Line detects, therefore reduces influence of the detection process to power benefit.
In the embodiment of the present invention, photovoltaic panel failure detector is applied to the photovoltaic panel group of series connection, including controller, and
Multiple voltage detection modules, current detection module and the communication module being connected respectively with controller；Each voltage detection module is led to
Four-way connection is crossed to connect one to one with each photovoltaic panel in photovoltaic panel group, for detecting the voltage data of photovoltaic panel, and will
Voltage data is sent to controller；Current detection module is connected with photovoltaic panel group, for detecting the current data of photovoltaic panel group, and
Current data is sent to controller；Controller is used to receive each voltage data and current data, and is sent out by communication module
Deliver to mobile terminal.So maintainer can easily check the voltage data and light of each photovoltaic panel by mobile terminal
The current data of plate group is lied prostrate, and then can judge that photovoltaic panel group is asked with the presence or absence of failure according to the voltage data and current data
Topic.Due to detecting the voltage data of each photovoltaic panel and the current data of photovoltaic panel group in photovoltaic panel group simultaneously, it is not necessary to right
Each photovoltaic panel in photovoltaic panel group detects one by one, therefore improves fault detection efficiency；Due to being not required in above-mentioned detection process
Want power down process, it is possible to achieve the on-line checking of voltage x current, therefore reduce influence of the detection process to power benefit.To sum up
Understand, photovoltaic panel failure detector provided by the invention, improve fault detection efficiency, reduce detection process and imitated to generating electricity
The influence of benefit.
In order to facilitate maintenance of the user to photovoltaic panel failure, controller noted above 101 is additionally operable to each voltage according to reception
Data judge whether each photovoltaic panel breaks down, and are judged according to the current data of reception between photovoltaic panel with the presence or absence of void
Failure is connect, and failure anticipation result is sent to mobile terminal by communication module 104.It has been achieved in that oneself of photovoltaic panel failure
It is dynamic to differentiate, it is no longer necessary to which that user judges after manually reading data, so as to improve overhaul efficiency.
In a possible embodiment, Fig. 3 is a kind of structural representation of controller provided in an embodiment of the present invention, such as
Shown in Fig. 3, controller 101 includes calculator 31, comparator 32 and the fault diagnosis module 33 being sequentially connected with.Specifically, consider
When being broken down to photovoltaic panel, its magnitude of voltage can be reduced substantially, and calculator 31 is used for the average voltage for calculating each voltage data
Value, and calculate the voltage difference of the maximum average voltage level in each average voltage level and each average voltage level；Comparator 32
For comparison voltage difference whether in the range of default voltage difference；Fault diagnosis module 33 is used for when voltage difference is not pre-
If voltage difference in the range of when, determine that photovoltaic panel breaks down corresponding to voltage difference.In view of the joint between photovoltaic panel
When virtual connection failure be present, contact point can produce contact resistance, so as to cause sparking, produce current impulse, calculator 31 is additionally operable to
The current differential of front and rear current value in calculating current data；Whether comparator 32 is additionally operable to compare current differential in default electric current
In difference range；Fault diagnosis module 33 is additionally operable to when current differential is not in the range of current differential, is determined between photovoltaic panel
Virtual connection failure be present.
For example, the average voltage level of the voltage data of 5 photovoltaic panels is respectively：18.2V, 18.1V, 18.1V, 14.2V and
18.0V, the then voltage difference that calculator 31 is calculated are respectively：0V、0.1V、0.1V、4V、0.2V；If default voltage difference
Value scope is to be less than 2V more than or equal to 0V, then comparator 32 determines the voltage difference of the 4th photovoltaic panel not in the voltage difference model
In enclosing, fault diagnosis module 33 determines that the 4th photovoltaic panel breaks down.And for example, 6 continuous current values point in current data
Not Wei 1A, 1.2A, 5A, 1.3A, 1.1A, 6A, then the current differential that calculator 31 is calculated is respectively：-0.2A、-3.8A、
3.7A、0.2A、-4.9A；If default current differential scope is to be less than 1A more than or equal to -1A, comparator 32 determines multiple electricity
Difference is flowed not in the range of current differential, and fault diagnosis module 33 determines virtual connection failure be present between photovoltaic panel.Such controller
101 are achieved that the automatic discrimination of failure.
Further, the quick photovoltaic panel for searching failure in scene, above-mentioned photovoltaic panel failure detector also wrap for convenience
Audible-visual annunciator is included, audible-visual annunciator is connected with controller 101.Specifically, audible-visual annunciator can be multiple, and be examined with voltage
Module 102 is surveyed to correspond, when photovoltaic panel corresponding to controller 101 judges some voltage detection module 102 breaks down,
Alarm command is sent to audible-visual annunciator corresponding to the voltage detection module 102, audible-visual annunciator is sent after receiving alarm command
Audible and visible alarm, to prompt the maintainer position of failure photovoltaic panel, maintainer is facilitated quickly to find the photovoltaic panel of failure.
Embodiment two：
Fig. 4 is a kind of structural representation of photovoltaic panel fault detection system provided in an embodiment of the present invention, as shown in figure 4,
The system includes mobile terminal 42 and the photovoltaic panel failure detector 41 such as above-mentioned embodiment one；Photovoltaic panel fault detect fills
41 are put to communicate to connect with mobile terminal 42.
Specifically, mobile terminal 42 includes the one or more in mobile phone, tablet personal computer, notebook computer.Using above-mentioned
Photovoltaic panel fault detection system, the detection process of maintainer are as follows：After reaching the spot, using four-way connection in each photovoltaic panel
The upper each voltage detection module 102 of parallel connection, a current detecting mould of connecting again in the photovoltaic panel group that multiple photovoltaic panels are composed in series
Block 103；After the completion of connection, the voltage data and current detecting mould of each voltage detection module 102 are read by mobile terminal 42
The current data of block 103；According to the voltage data and current data, judge that the photovoltaic panel group whether there is failure, and more change
The photovoltaic panel of raw failure and the joint that virtual connection failure be present.
In the embodiment of the present invention, photovoltaic panel failure detector is applied to the photovoltaic panel group of series connection, including controller, and
Multiple voltage detection modules, current detection module and the communication module being connected respectively with controller；Each voltage detection module is led to
Four-way connection is crossed to connect one to one with each photovoltaic panel in photovoltaic panel group, for detecting the voltage data of photovoltaic panel, and will
Voltage data is sent to controller；Current detection module is connected with photovoltaic panel group, for detecting the current data of photovoltaic panel group, and
Current data is sent to controller；Controller is used to receive each voltage data and current data, and is sent out by communication module
Deliver to mobile terminal.So maintainer can easily check the voltage data and light of each photovoltaic panel by mobile terminal
The current data of plate group is lied prostrate, and then can judge that photovoltaic panel group is asked with the presence or absence of failure according to the voltage data and current data
Topic.Due to detecting the voltage data of each photovoltaic panel and the current data of photovoltaic panel group in photovoltaic panel group simultaneously, it is not necessary to right
Each photovoltaic panel in photovoltaic panel group detects one by one, therefore improves fault detection efficiency；Due to being not required in above-mentioned detection process
Want power down process, it is possible to achieve the on-line checking of voltage x current, therefore reduce influence of the detection process to power benefit.To sum up
Understand, photovoltaic panel fault detection system provided by the invention, improve fault detection efficiency, reduce detection process and imitated to generating electricity
The influence of benefit.
Further, in order to facilitate judgement of the user to photovoltaic panel failure, mobile terminal 42 also includes graphics module, draws
Module is used to draw voltage curve according to the voltage data of each photovoltaic panel of reception, and is drawn according to the current data of reception
Current curve.So, user can easily judge to break down according to the voltage curve and current curve of each photovoltaic panel
Photovoltaic panel, and with the presence or absence of virtual connection failure.
It is apparent to those skilled in the art that for convenience and simplicity of description, the photovoltaic of foregoing description
The specific work process of plate fault detection system, it may be referred to corresponding in foregoing photovoltaic panel failure detector embodiment
Journey, it will not be repeated here.
Photovoltaic panel fault detection system provided in an embodiment of the present invention, the photovoltaic panel fault detect provided with above-described embodiment
Device has identical technical characteristic, so can also solve identical technical problem, reaches identical technique effect.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In several embodiments provided herein, it should be understood that disclosed apparatus and system, it can be passed through
Its mode is realized.System embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, there can be other dividing mode when actually realizing, in another example, multiple units or component can combine
Or another system is desirably integrated into, or some features can be ignored, or do not perform.Another, shown or discussed phase
Coupling or direct-coupling or communication connection between mutually can be by some communication interfaces, the INDIRECT COUPLING of device or unit or
Communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
Finally it should be noted that：Embodiment described above, it is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
- A kind of 1. photovoltaic panel failure detector, it is characterised in that applied to the photovoltaic panel group of series connection, the photovoltaic panel failure inspection Survey device include controller, and be connected respectively with the controller multiple voltage detection modules, current detection module and lead to Believe module；Each voltage detection module is connected one to one by four-way connection and each photovoltaic panel in the photovoltaic panel group, Sent for detecting the voltage data of the photovoltaic panel, and by the voltage data to the controller；The current detecting mould Block is connected with the photovoltaic panel group, is sent for detecting the current data of the photovoltaic panel group, and by the current data to institute State controller；The controller is used to receive each voltage data and the current data, and by the communication module send to Mobile terminal.
- 2. photovoltaic panel failure detector according to claim 1, it is characterised in that the controller is additionally operable to basis and connect The each voltage data received judges whether each photovoltaic panel breaks down, and the current data according to reception Judge to whether there is virtual connection failure between the photovoltaic panel, and failure anticipation result is sent to described by the communication module Mobile terminal.
- 3. photovoltaic panel failure detector according to claim 2, it is characterised in that the controller includes being sequentially connected with Calculator, comparator and fault diagnosis module；The calculator is used for the average voltage level for calculating each voltage data, and calculates in each average voltage level Maximum average voltage level and each average voltage level voltage difference；The comparator is used for the voltage difference Whether in the range of default voltage difference；The fault diagnosis module is used for when the voltage difference is not in default voltage difference When in the range of value, determine that photovoltaic panel corresponding to the voltage difference breaks down；The calculator is additionally operable to calculate the current differential of front and rear current value in the current data；The comparator is additionally operable to compare Whether the current differential is in the range of default current differential；The fault diagnosis module is additionally operable to work as the current differential When not in the range of the current differential, determine virtual connection failure be present between the photovoltaic panel.
- 4. photovoltaic panel failure detector according to claim 2, it is characterised in that the photovoltaic panel failure detector Also include audible-visual annunciator, the audible-visual annunciator is connected with the controller.
- 5. photovoltaic panel failure detector according to claim 1, it is characterised in that each voltage detection module bag Include：Address scrambler and data transmission module；The address scrambler is used to determine the address code of itself；The data transmission module respectively with the address scrambler and The controller connection.
- 6. photovoltaic panel failure detector according to claim 1, it is characterised in that the photovoltaic panel failure detector Including 24 voltage detection modules.
- 7. photovoltaic panel failure detector according to claim 1, it is characterised in that the communication module is led to including bluetooth Believe the one or more in module, ethernet communication module, gsm communication module, GPRS communication modules.
- 8. a kind of photovoltaic panel fault detection system, it is characterised in that including mobile terminal and as appointed in above-mentioned claim 1-7 Photovoltaic panel failure detector described in one；The photovoltaic panel failure detector is connected with the communication of mobile terminal.
- 9. photovoltaic panel fault detection system according to claim 8, it is characterised in that the mobile terminal include mobile phone, One or more in tablet personal computer, notebook computer.
- 10. photovoltaic panel fault detection system according to claim 8, it is characterised in that the mobile terminal also includes painting Module, the graphics module are used to draw voltage curve, Yi Jigen according to the voltage data of each photovoltaic panel of reception Current curve is drawn according to the current data of reception.
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