CN208283839U - A kind of photovoltaic generating system for realizing MPPT output - Google Patents
A kind of photovoltaic generating system for realizing MPPT output Download PDFInfo
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- CN208283839U CN208283839U CN201820447258.XU CN201820447258U CN208283839U CN 208283839 U CN208283839 U CN 208283839U CN 201820447258 U CN201820447258 U CN 201820447258U CN 208283839 U CN208283839 U CN 208283839U
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- photovoltaic panel
- fritter
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model relates to technical field of photovoltaic power generation, a kind of photovoltaic generating system for realizing MPPT output is provided, including photovoltaic panel array generator component, PWM controller, fritter photovoltaic panel, product circuit and test device, the test device is according to the obtained each period fritter photovoltaic panel Maximum Power Output point value of test to product circuit, the maximum power point test value of product circuit fritter photovoltaic panel based on the received multiplies after the maximum power point value of entire photovoltaic panel array generator component is calculated in the power multiple in photovoltaic plate array compared with fritter photovoltaic panel is sent to PWM controller in real time, the MPPT output of photovoltaic generating system is realized in the output that the real-time maximum power point value that the PWM controller is received according to each period adjusts the entire photovoltaic panel array generator component of control in real time.The utility model solves the problems, such as that existing photovoltaic generating system MPPT output precision is not high, determination efficiency is low.
Description
Technical field
The utility model relates to technical field of photovoltaic power generation, in particular to a kind of photovoltaic power generation system for realizing MPPT output
System.
Background technique
Currently, in recent years, solar energy power generating industry has obtained quick development.Photovoltaic cell can turn solar energy
Electric energy is turned to external output power, since photovoltaic cell output P-U characteristic is by the operating conditions shadow such as ambient temperature and illumination
Ringing is non-linear relation, so the relationship between the output power from photovoltaic cells and output voltage is also non-linear relation.Usual feelings
Under condition, need to make its work in maximum power using the output voltage of maximum power point tracking technology control photovoltaic battery array
At point.It, can be by maximum power point tracing method at present according to the feature of the algorithm of MPPT maximum power point tracking and specific implementation process
Be divided into three categories: (1) indirect control theory based on parameter selection mode mainly has constant voltage tracing, open-circuit voltage ratio system
Number method etc.；(2) based on the direct control method of sampled data, such as perturbation observation method, conductance increment method；(3) it is based on modern scientist
Theoretical artificial intelligence control method, such as fuzzy logic control method, neural network.In three of the above method, first method
Precision is not high, second and third kind of method starting speed is slow, and dynamic responding speed is slow when external environment acute variation, while temperature becomes
It is not easy to adjust when changing violent, is easy to produce the speed for overloading and then extending adjustment response.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of structures simply, tracking reaction speed is fast, test essence
Quasi-, effective guarantee photovoltaic generating system quickly can accurately operate in maximum when ambient temperature or illumination condition change
The photovoltaic generating system for realizing MPPT output of power points.
To solve this technical problem, the utility model takes following scheme: a kind of photovoltaic power generation system realizing MPPT output
System, including photovoltaic panel array generator component, PWM controller, fritter photovoltaic panel, product circuit and test device, the fritter light
Lie prostrate the same model of photovoltaic plate unit same material in the photovoltaic plate array of plate and photovoltaic panel array generator component, the test device with
Fritter photovoltaic panel is connected and periodically real-time testing obtains the maximum power point value of the fritter photovoltaic panel, the PWM control
Device is connected with the output end of photovoltaic panel array generator component and controls the output of photovoltaic panel array generator component, the test dress
The each period fritter photovoltaic panel Maximum Power Output point value obtained according to test is set to product circuit, the product circuit is defeated
Outlet is connected with PWM controller input terminal, and the PWM controller is counted according to the real-time maximum power that each period receives
Value adjustment in real time controls the output of entire photovoltaic panel array generator component, to realize the maximum work of photovoltaic panel array generator component
The MPPT output of photovoltaic generating system is completed in the control of rate point tracking.
Further to improve, the test device includes tunable load, current detection circuit, voltage detecting circuit and monolithic
Machine, the tunable load are connected with the output end of fritter photovoltaic panel, the current detection circuit and voltage detecting circuit difference
Be connected with fritter photovoltaic panel for real-time detection fritter photovoltaic panel tunable load adjust change when real-time testing fritter photovoltaic
The voltage and current of plate, the current detection circuit is connected with single-chip microcomputer input with voltage detecting circuit output, described
Single-chip microcontroller, which connects and controls tunable load, carries out being stepped up load value the output overload reduction power points until fritter photovoltaic panel,
The single-chip microcontroller is defeated according to the maximum power point that current detection circuit and voltage detecting circuit test value calculate fritter photovoltaic panel
It is worth out.
By using preceding solution, the beneficial effects of the utility model are: passing through test and photovoltaic panel array generator
The fritter photovoltaic panel of the photovoltaic plate unit same material of the photovoltaic plate array of component, is periodically converted by test device and is applied to
Load in fritter photovoltaic panel to measure the maximum power point value of fritter photovoltaic panel in real time, that is, when testing control tunable load by
The power points that step increases to i.e. test after the output overload of the block fritter photovoltaic panel reaches reduces that obtain this in turn small after maximum again
The accurate maximum power point value of block photovoltaic panel, then the function by product circuit combination photovoltaic plate array compared with fritter photovoltaic panel
Rate multiple calculates the maximum power point value of entire photovoltaic plate array, thus periodically real according to what is received by PWM controller
When the amendment adjustment of maximum power point value real-time period control the output of entire photovoltaic panel array generator component, to realize photovoltaic
The maximum power point tracking of plate array electrification component completes the MPPT output of photovoltaic generating system, and such mode keeps system fast
Speed is accurately tracked by maximum power point, and does not generate concussion at maximum power point, improves turning for photovoltaic generating system
Efficiency is changed, structure is simple, tracking reaction speed is fast, accurate testing, effective guarantee photovoltaic generating system are in ambient temperature or illumination
Condition quickly can accurately operate in maximum power point when changing, and effectively prevent entire photovoltaic panel array generator
The output of component overloads, can wide popularization and application.
Detailed description of the invention
Fig. 1 is the functional block diagram of the utility model embodiment.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
With reference to Fig. 1, the photovoltaic generating system for realizing MPPT output of preferred the utility model, including photovoltaic plate array hair
Electrical component 1, PWM controller 2, independent fritter photovoltaic panel 5, product circuit 3 and test device 4, the test device 4 include adjustable
Load 41, current detection circuit 42, voltage detecting circuit 43 and single-chip microcontroller 44, the fritter photovoltaic panel 5 are sent out with photovoltaic plate array
Photovoltaic plate unit same material in the photovoltaic plate array of electrical component 1, the test device 4 is connected with fritter photovoltaic panel 5 and week
Phase property real-time testing obtains the maximum power point value of the fritter photovoltaic panel 5, the current detection circuit 42 and voltage detecting electricity
Road 43 is connected with fritter photovoltaic panel 5 real-time when tunable load 41 adjusts and changes for real-time detection fritter photovoltaic panel 5 respectively
Test the voltage and current of fritter photovoltaic panel 5, the current detection circuit 42 and voltage detecting circuit 43 export and single-chip microcontroller
44 input terminals are connected, and the single-chip microcontroller 44 connects and controls tunable load 41 and carries out being stepped up load value until fritter photovoltaic
The output overload of plate 5 reduces power points, and periodic cycle control tunable load 41 carries out test fritter to single-chip microcontroller 44 in this way
The maximum power point of photovoltaic panel 5, the single-chip microcontroller 44 are calculated according to current detection circuit 42 and 43 test value of voltage detecting circuit
The maximum power point output valve of fritter photovoltaic panel 5 out, the output end phase of the PWM controller 2 and photovoltaic panel array generator component 1
Connect and control the output of photovoltaic panel array generator component 1, the test device 4 is by each period Maximum Power Output point value
To product circuit 3, the maximum power point test value of the product circuit 3 fritter photovoltaic panel 5 based on the received multiplies in photovoltaic panel battle array
After the maximum power point value of entire photovoltaic panel array generator component 1 is calculated in power multiple of the column compared with fritter photovoltaic panel
It is sent to PWM controller 2 in real time, the PWM controller 2 is real-time according to the real-time maximum power point value that each period receives
Amendment adjustment controls the output of entire photovoltaic panel array generator component 1, to realize the maximum work of photovoltaic panel array generator component 1
The MPPT output of photovoltaic generating system is completed in the control of rate point tracking.
The maximum power point tracing method of preferred the utility model, comprising the following steps:
S1, output is converted solar energy into electrical energy using photovoltaic panel array generator component, in photovoltaic panel array generator component
The upper fritter photovoltaic panel that one piece with the photovoltaic plate unit same material of the photovoltaic plate array of photovoltaic panel array generator component are set, by this
The output end connecting test device of fritter photovoltaic panel, by the test device, periodically the real-time detection fritter photovoltaic panel is most
High-power, when test device each cycle detection fritter photovoltaic panel maximum power point is to be connected to fritter photovoltaic panel by control
The tunable load varying duty value of output end tests the power points of monolithic photovoltaic panel, and control tunable load is stepped up when test
The power points of i.e. test reduces again and then obtains the fritter photovoltaic after reaching maximum after to the output overload of the block fritter photovoltaic panel
The accurate maximum power point value of plate, wherein the test device includes tunable load, current detection circuit, voltage detecting circuit
And single-chip microcontroller, the tunable load are connected with the output end of fritter photovoltaic panel, the current detection circuit and voltage detecting electricity
Road is connected with fritter photovoltaic panel respectively, and for real-time detection fritter photovoltaic panel, when tunable load adjusts and changes, real-time testing is small
The voltage and current of block photovoltaic panel, the current detection circuit are connected with single-chip microcomputer input with voltage detecting circuit output
It connects, the single-chip microcontroller connects and controls tunable load and carries out being stepped up load value until the output overload of fritter photovoltaic panel reduces
Power points, the single-chip microcontroller calculate the maximum work of fritter photovoltaic panel according to current detection circuit and voltage detecting circuit test value
Rate point output valve；
S2, the output end of photovoltaic panel array generator component is controlled into its Maximum Power Output point by PWM controller；
S3, in real time by the maximum power point test value for the fritter photovoltaic panel that each cycle detection of test device is arrived in step S1
Multiply the power multiple in photovoltaic plate array compared with fritter photovoltaic panel and obtains the maximum power of entire photovoltaic panel array generator component
The maximum power point that each period obtains entire photovoltaic panel array generator component is sent to PWM controller by point value in real time,
Each period maximum power point Numerical Control corrects the defeated of entire photovoltaic panel array generator component to PWM controller based on the received
Out, to realize the maximum power point tracking of photovoltaic panel array generator component.
The photovoltaic plate unit same material that the utility model passes through test and the photovoltaic plate array of photovoltaic panel array generator component
Fritter photovoltaic panel, the load being applied in fritter photovoltaic panel is periodically converted by test device to measure fritter light in real time
The maximum power point value of plate is lied prostrate, that is, after control tunable load is gradually increased to the output overload of the block fritter photovoltaic panel when testing
The power points tested reduces again after reaching maximum and then obtains the accurate maximum power point value of the fritter photovoltaic panel, then passes through
Power multiple of the product circuit combination photovoltaic plate array compared with fritter photovoltaic panel calculates the maximum power of entire photovoltaic plate array
Point value, thus by PWM controller according to the periodically maximum power point value real-time period amendment in real time adjustment control received
The output of entire photovoltaic panel array generator component is made, to realize the maximum power point tracking of photovoltaic panel array generator component
The MPPT output of photovoltaic generating system is completed, such mode makes system quickly and accurately trace into maximum power point, and most
Concussion is not generated at high-power point, improves the transfer efficiency of photovoltaic generating system, and structure is simple, tracking reaction speed is fast, surveys
Examination is accurate, effective guarantee photovoltaic generating system quickly can be operated in accurately when ambient temperature or illumination condition change
Maximum power point, and the output overload of entire photovoltaic panel array generator component is effectively prevented, it can wide popularization and application.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (2)
1. a kind of photovoltaic generating system for realizing MPPT output, it is characterised in that: controlled including photovoltaic panel array generator component, PWM
Device, fritter photovoltaic panel, product circuit and test device processed, the photovoltaic panel of the fritter photovoltaic panel and photovoltaic panel array generator component
The same model of photovoltaic plate unit same material in array, the test device is connected with fritter photovoltaic panel and periodical real-time testing
Obtain the maximum power point value of the fritter photovoltaic panel, the output end phase of the PWM controller and photovoltaic panel array generator component
Connect and control the output of photovoltaic panel array generator component, each period fritter photovoltaic that the test device is obtained according to test
To product circuit, the product circuit output end is connected plate Maximum Power Output point value with PWM controller input terminal, described
The real-time maximum power point value that PWM controller is received according to each period adjusts the entire photovoltaic panel array generator of control in real time
The output of component, to realize that the maximum power point tracking of photovoltaic panel array generator component completes photovoltaic generating system
MPPT output.
2. a kind of photovoltaic generating system for realizing MPPT output according to claim 1, it is characterised in that: the test dress
It sets including tunable load, current detection circuit, voltage detecting circuit and single-chip microcontroller, the tunable load is defeated with fritter photovoltaic panel
Outlet is connected, and the current detection circuit and voltage detecting circuit are connected with fritter photovoltaic panel small for real-time detection respectively
Block photovoltaic panel tunable load adjust change when real-time testing fritter photovoltaic panel voltage and current, the current detection circuit with
Voltage detecting circuit output is connected with single-chip microcomputer input, and the single-chip microcontroller, which connects and controls tunable load, gradually to be increased
Loading value until the output overload of fritter photovoltaic panel reduces power points, examine according to current detection circuit and voltage by the single-chip microcontroller
Slowdown monitoring circuit test value calculates the maximum power point output valve of fritter photovoltaic panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447258.XU CN208283839U (en) | 2018-03-30 | 2018-03-30 | A kind of photovoltaic generating system for realizing MPPT output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447258.XU CN208283839U (en) | 2018-03-30 | 2018-03-30 | A kind of photovoltaic generating system for realizing MPPT output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208283839U true CN208283839U (en) | 2018-12-25 |
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ID=64750210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820447258.XU Active CN208283839U (en) | 2018-03-30 | 2018-03-30 | A kind of photovoltaic generating system for realizing MPPT output |
Country Status (1)
| Country | Link |
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| CN (1) | CN208283839U (en) |
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2018
- 2018-03-30 CN CN201820447258.XU patent/CN208283839U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190611 Address after: 362000 Dingcheng Village, Meishan Town, Nanan City, Quanzhou City, Fujian Province Patentee after: QUANZHOU DAQIN PHOTOELECTRIC Co.,Ltd. Address before: 362000 No. 10 Xicun, Luoyang Town, Huian County, Quanzhou City, Fujian Province Patentee before: HUI'AN DALIN INTELLIGENT TECHNOLOGY CO.,LTD. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 362000 floor 4, plant 14, boutique Park, Huangling village, zhangban Town, Taiwan investment zone, Quanzhou City, Fujian Province Patentee after: QUANZHOU DAQIN PHOTOELECTRIC Co.,Ltd. Address before: 362000 Dingcheng Village, Meishan Town, Nanan City, Quanzhou City, Fujian Province Patentee before: QUANZHOU DAQIN PHOTOELECTRIC Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230905 Address after: No. 1562, Chengbian, Yucheng Village, Zhangban Town, Taishang Investment Zone, Quanzhou City, Fujian Province, 362000 Patentee after: Quanzhou Chunguang Lighting Technology Co.,Ltd. Address before: 362000 floor 4, plant 14, boutique Park, Huangling village, zhangban Town, Taiwan investment zone, Quanzhou City, Fujian Province Patentee before: QUANZHOU DAQIN PHOTOELECTRIC Co.,Ltd. |