CN106612103A - Device and method for facilitating stable running of distributed photovoltaic power generation system - Google Patents
Device and method for facilitating stable running of distributed photovoltaic power generation system Download PDFInfo
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- CN106612103A CN106612103A CN201510708538.2A CN201510708538A CN106612103A CN 106612103 A CN106612103 A CN 106612103A CN 201510708538 A CN201510708538 A CN 201510708538A CN 106612103 A CN106612103 A CN 106612103A
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- 238000010248 power generation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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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 relates to the technical field of electric power, in particular to a device and a method for facilitating stable running of a distributed photovoltaic power generation system. The device for facilitating stable running of the distributed photovoltaic power generation system comprises a controller, an electric information transducer, an electric information sensor, an input module and a display module, wherein the electric information transducer is arranged on a series branch of a solar cell array in order to acquire corresponding electric information; electric signals (current and voltage signals) of series cell loops in the solar cell array are acquired through the electric information sensor, and an output signal of the electric information sensor is converted into a signal which can be recognized by the controller through the electric information transducer; and the controller is used for processing, analyzing and judging the signal transmitted by the electric information transducer after receiving the signal, determining the position of a solar cell series branch encountering a failure and a failure position in the branch, and displaying the positions through the display module. Through adoption of the device and the method, hidden danger is eliminated immediately, and stable running of the solar photovoltaic power generation system is maintained.
Description
Technical field
The present invention relates to technical field of electric power, more particularly to a kind of promotion distributed photovoltaic power generation system
The device and method of system stable operation.
Background technology
At present, solar energy is used as a kind of cleaning, free of contamination regenerative resource, its technology application
Reached its maturity, and extensively attention has been obtained in each energy field.At present in the application of solar energy
In field, what is most attracted people's attention is the solar power station that photovoltaic generation is directly carried out using solar energy,
Current energy crisis can be necessarily alleviated in its appearance and popularization, promote benign of energy resource structure
Exhibition.Photovoltaic generation is to convert optical energy into electric energy by solaode, is a kind of zero-emission
Clean energy resource, its oneself become the world today is of greatest concern, increasing degree is most fast energy industry it
One.
Solar battery array, as device for converting electric energy, is the important composition of photovoltaic generating system
Part, it is combined through series and parallel knot by several solar modules.However,
As solar power system is exposed in an outdoor environment, particularly in the ring that natural conditions are severe
Under border, after long-play, solar battery array occurs local fault, affects entirely too
It is positive can array electric energy output, to making whole electricity generation system cisco unity malfunction.Therefore,
It is necessary the failure in solar battery array is carried out accurately and timely detecting, makes attendant
Targetedly process in time, it is ensured that photovoltaic generating system stably normally runs.
Therefore, it is not enough for more than, it is desirable to provide a kind of to promote distributed photovoltaic power generation system steady
The device and method of fixed operation.
The content of the invention
(1) technical problem to be solved
It is an object of the invention to provide a kind of dress for promoting distributed photovoltaic power generation system stable operation
Put and method occurs to send out in time after local fault to solve solaode in the presence of a harsh environment
The problem of solar photovoltaic generation system stable operation is further affected now.
(2) technical scheme
In order to solve above-mentioned technical problem, one aspect of the present invention provides a kind of distributed light of promotion
The device of photovoltaic generating system stable operation, which includes controller, electrical information transmitter, electrical information
Sensor, input module and display module；The electrical information sensor is arranged on solaode
In the series arm of array, to obtain corresponding electrical information；The electrical information transmitter is arranged on
Between the controller and electrical information sensor, the output signal of electrical information sensor is changed
For the signal that can be recognized by controller；The input module is connected with the controller, described aobvious
Show that module is connected with the controller.
Wherein, the controller is microcontroller.
Wherein, the electrical information sensor includes Hall current sensor and Hall voltage sensor,
The Hall current sensor and Hall voltage sensor are arranged on the series connection of solar battery array
On branch road, and it is connected with electrical information transmitter.
Wherein, the electrical information transmitter includes current transducer and voltage transmitter, the electricity
Flow transmitter and voltage transmitter respectively with the Hall current sensor and Hall voltage sensor
Connection.
Wherein, the input module and display module pass through I2C buses are connected with controller.
Wherein, the input module is keyboard.
Wherein, the display module is light-emitting diode display.
Wherein, also including clock module, the clock module passes through I2C buses are connected with controller.
The method of the promotion distributed photovoltaic power generation system stable operation that another aspect of the present invention is provided
Comprise the following steps：
S1, solar battery array is gathered by Hall current sensor and Hall voltage sensor
Series arm on current information and and information of voltage；
S2, by current transducer and voltage transmitter to Hall current sensor and Hall voltage
Current information and changed with information of voltage that sensor is exported, and the electric current after conversion is believed
Cease and controller is passed to information of voltage；
S3, the failure of the series arm that solar battery array is carried out by controller are differentiated；
If occurring the failure of series arm in S4, step S3, branch road event is carried out by controller
Barrier positioning；
S5, the branch trouble after positioning during controller is to step S4 are processed, to exclude
Branch trouble.
Wherein, in step sl, gather the electric current letter in the series arm of solar battery array
Breath and be daily 10 point to 14 points with the time of information of voltage.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the advantage that：The promotion that the present invention is provided is distributed
In the device and method of photovoltaic generating system stable operation, by the electrical information sensor acquisition sun
The signal of telecommunication (electric current and voltage signal) in each series-connected cell loop in energy array, Ran Houtong
Cross electrical information transmitter and the output signal of electrical information sensor is changed into into what is can recognized by controller
Signal, controller carry out Treatment Analysis judgement after receiving the signal that electrical information transmitter is transmitted,
It is determined that the position of the solaode series arm for breaking down and the abort situation in the branch road,
And show from display module, so as to remove a hidden danger in time, safeguard solar energy power generating
System stable operation.
Description of the drawings
Fig. 1 is the device that the embodiment of the present invention promotes distributed photovoltaic power generation system stable operation
Annexation schematic diagram；
Fig. 2 is the method reality that the embodiment of the present invention promotes distributed photovoltaic power generation system stable operation
Apply Principle of Process figure.
Specific embodiment
With reference to the accompanying drawings and examples the specific embodiment of the present invention is made further to retouch in detail
State.Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
As shown in figure 1, a kind of promotion distributed photovoltaic power generation system stability fortune that the present invention is provided
Capable device includes controller, electrical information transmitter, electrical information sensor, input module and shows
Show module；The electrical information sensor is arranged in the series arm of solar battery array, with
Obtain corresponding electrical information；The electrical information transmitter is arranged on the controller and electrical information is passed
Between sensor, the output signal of electrical information sensor is changed into the letter that can be recognized by controller
Number；The input module is connected with the controller, and the display module is connected with the controller
Connect.
In above-described embodiment, by each string in electrical information sensor acquisition solar battery array
The signal of telecommunication (electric current and voltage signal) of connection cell circuit, then by electrical information transmitter by electricity
The output signal of information sensor is changed into the signal that can be recognized by controller, and controller is received
Treatment Analysis judgement is carried out after the signal that electrical information transmitter is transmitted, it is determined that the sun for breaking down
Abort situation in the position of energy battery series arm and the branch road, and show from display module
Out, so as to remove a hidden danger in time, safeguard solar photovoltaic generation system stable operation.
Specifically, the controller is microcontroller, and the microcontroller can be electric to the electric current for transmitting
Pressure information is analyzed process and judges, to determine failure series arm and corresponding abort situation.
Further, the electrical information sensor includes that Hall current sensor and Hall voltage are passed
Sensor, the Hall current sensor and Hall voltage sensor are arranged on solar battery array
Series arm on, and be connected with electrical information transmitter.Above-mentioned Hall current sensor can be real
Existing DC detection circuit is isolated with circuit-under-test, hardly consumed energy, with sensitivity height,
The characteristics such as the linearity is good, good stability, small volume and high temperature resistant.Only need to be too in such scheme
Detection voltage, electric current in positive energy array, can identify certain in numerous batteries and event occur
The battery of barrier, without the need for equipment it is out of service or install additional complexity testing equipment.
Specifically, the electrical information transmitter includes current transducer and voltage transmitter, described
Current transducer is connected with the Hall current sensor；The voltage transmitter and Hall voltage
Sensor connects.
In above-mentioned technical proposal, M battery series arm is detected by Hall current sensor first
Output current signal I1～IMAnd detection microcontroller is sent to, it is former according to detection by microcontroller
Which then break down judging branch road.Solaode is judged to that malfunction follows following two
Bar principle：If any solaode series arm has relatively low output, it is determined that be
Failure：The deviation ratio of electric current is compared to each other, if any solaode series arm is presented
Relatively large deviation ratio, it is determined that faulty for the series arm.
Secondly, after series arm abort situation is determined, microcontroller measures the electricity of the branch road
Pressure value, and analyze and judge concrete location of fault.By the electric current I of each series arm1～IMThrough low
Output and deviation ratio compare, and determine fault branch K.
Further, the input module and display module pass through I2C buses are connected with controller；
The input module is keyboard；The display module is light-emitting diode display.Can be with defeated by keyboard
Enter analysis judge needed for solar battery array parameter, ambient parameter, detection time or other
Detection information is instructed, and can show monitoring information in real time by light-emitting diode display.
Further, present invention additionally comprises clock module, the clock module is by I2C buses with
Controller connects.The output current of M battery series arm can regularly be detected by clock module
Signal.
As shown in Fig. 2 another aspect of the present invention additionally provides a kind of promotion solar energy power generating
The method of system stable operation, which comprises the following steps：
S1, solar battery array is gathered by Hall current sensor and Hall voltage sensor
Series arm on current information and and information of voltage；
S2, by current transducer and voltage transmitter to Hall current sensor and Hall voltage
Current information and changed with information of voltage that sensor is exported, and the electric current after conversion is believed
Cease and controller is passed to information of voltage；
S3, the failure of the series arm that solar battery array is carried out by controller are differentiated；
If occurring the failure of series arm in S4, step S3, branch road event is carried out by controller
Barrier positioning；
S5, the branch trouble information after positioning during controller is to step S4 are processed, with
Exclude branch trouble.
Wherein, in step sl, gather the electric current letter in the series arm of solar battery array
The time of breath and information of voltage is daily 10 point to 14 points.The time of system acquisition electric current is
Daily 10 points are to 14 o'clock, because generally within this time period, having stronger sunlight
It is radiated on cell panel, is conducive to more accurately reflecting the situation of solaode.
In sum, the dress of the promotion distributed photovoltaic power generation system stable operation that the present invention is provided
Put and method in, determine fail battery position by analyzing the current and voltage signals of each series arm
Put, on-line checking, low cost and the detection dress without the need for additional complexity are realized using microcomputer technology
Put, while analysis also can be monitored to solar battery array, be easy to attendant to slap in real time
The ruuning situation of solar battery array is held, is conducive to eliminating potential faults, is promoted distributed light
Photovoltaic generating system stable operation.
The above is only the preferred embodiment of the present invention, it is noted that for this technology is led
For the those of ordinary skill in domain, on the premise of without departing from the technology of the present invention principle, can be with
Some improvement and modification are made, these improve and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. it is a kind of promote distributed photovoltaic power generation system stable operation device, it is characterised in that
Including controller, electrical information transmitter, electrical information sensor, input module and display module；
The electrical information sensor is arranged in the series arm of solar battery array, corresponding to obtain
Electrical information；The electrical information transmitter is arranged between the controller and electrical information sensor,
So that the output signal of electrical information sensor is changed into the signal that can be recognized by controller；It is described defeated
Enter module to be connected with the controller, the display module is connected with the controller.
2. it is according to claim 1 promote distributed photovoltaic power generation system stable operation dress
Put, it is characterised in that：The controller is microcontroller.
3. it is according to claim 1 promote distributed photovoltaic power generation system stable operation dress
Put, it is characterised in that：The electrical information sensor includes Hall current sensor and Hall voltage
Sensor, the Hall current sensor and Hall voltage sensor are arranged on solar array
In the series arm of row, and it is connected with electrical information transmitter.
4. it is according to claim 3 promote distributed photovoltaic power generation system stable operation dress
Put, it is characterised in that：The electrical information transmitter includes current transducer and voltage transmitter,
The current transducer and voltage transmitter respectively with the Hall current sensor and Hall voltage
Sensor connects.
5. it is according to claim 1 promote distributed photovoltaic power generation system stable operation dress
Put, it is characterised in that：The input module and display module pass through I2C buses are connected with controller.
6. it is according to claim 5 promote distributed photovoltaic power generation system stable operation dress
Put, it is characterised in that：The input module is keyboard.
7. it is according to claim 5 promote distributed photovoltaic power generation system stable operation dress
Put, it is characterised in that：The display module is light-emitting diode display.
8. the promotion distributed photovoltaic power generation system stability according to any one of claim 1-7
The device of operation, it is characterised in that：Also include clock module, the clock module passes through I2C is total
Line is connected with controller.
9. it is a kind of promote distributed photovoltaic power generation system stable operation method, it is characterised in that：
Which comprises the following steps：
S1, solar battery array is gathered by Hall current sensor and Hall voltage sensor
Series arm on current information and and information of voltage；
S2, by current transducer and voltage transmitter to Hall current sensor and Hall voltage
Current information and changed with information of voltage that sensor is exported, and the electric current after conversion is believed
Cease and controller is passed to information of voltage；
S3, the failure of the series arm that solar battery array is carried out by controller are differentiated；
If occurring the failure of series arm in S4, step S3, branch road event is carried out by controller
Barrier positioning；
S5, the branch trouble after positioning during controller is to step S4 are processed, to exclude
Branch trouble.
10. the side of distributed photovoltaic power generation system stable operation is promoted according to claim 9
Method, it is characterised in that：In step sl, gather in the series arm of solar battery array
Current information and be daily 10 point to 14 points with the time of information of voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708538.2A CN106612103A (en) | 2015-10-27 | 2015-10-27 | Device and method for facilitating stable running of distributed photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708538.2A CN106612103A (en) | 2015-10-27 | 2015-10-27 | Device and method for facilitating stable running of distributed photovoltaic power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN106612103A true CN106612103A (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510708538.2A Pending CN106612103A (en) | 2015-10-27 | 2015-10-27 | Device and method for facilitating stable running of distributed photovoltaic power generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824966A (en) * | 2018-07-23 | 2020-02-21 | 傅宗民 | A wisdom energy thing networking that is used for connector of wisdom energy thing networking and contains it |
| CN107483012B (en) * | 2017-09-21 | 2023-05-23 | 暨南大学 | Photovoltaic array fault detection device and method based on voltage and current |
-
2015
- 2015-10-27 CN CN201510708538.2A patent/CN106612103A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483012B (en) * | 2017-09-21 | 2023-05-23 | 暨南大学 | Photovoltaic array fault detection device and method based on voltage and current |
| CN110824966A (en) * | 2018-07-23 | 2020-02-21 | 傅宗民 | A wisdom energy thing networking that is used for connector of wisdom energy thing networking and contains it |
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Application publication date: 20170503 |