CN108322134A - A kind of optimization method for photovoltaic power station generated energy - Google Patents
A kind of optimization method for photovoltaic power station generated energy Download PDFInfo
- Publication number
- CN108322134A CN108322134A CN201810243048.3A CN201810243048A CN108322134A CN 108322134 A CN108322134 A CN 108322134A CN 201810243048 A CN201810243048 A CN 201810243048A CN 108322134 A CN108322134 A CN 108322134A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- synchronous rectifier
- generated energy
- optimization
- rectifier converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005457 optimization Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 47
- 239000004065 semiconductor Substances 0.000 claims description 21
- 230000006837 decompression Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 241001269238 Data Species 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- 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
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
-
- 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
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of optimization methods for photovoltaic power station generated energy, include the following steps, the optimization of photovoltaic module array installation site, the real-time optimization at photovoltaic steering bracket angle of inclination；The power optimization of photovoltaic module；The generated energy for estimating the photovoltaic generating system coming 10 years after photovoltaic module optimization, the meteorological data using typical meteorological year as the following generated energy of prediction.The optimization method for photovoltaic power station generated energy of the present invention, optimize including photovoltaic module array installation site, the real-time optimization at photovoltaic steering bracket angle of inclination and the power optimization of photovoltaic module, three kinds of optimizations are used cooperatively, it not will produce mismatch phenomenon between photovoltaic panel and photovoltaic module, each photovoltaic module can maximum power output simultaneously, the generated energy of entire photovoltaic power station is set to be optimal, the generated energy of the photovoltaic generating system coming 10 years after photovoltaic module optimization can also be estimated, it is for reference, it has a good application prospect.
Description
Technical field
The present invention relates to a kind of optimization methods for photovoltaic power station generated energy, belong to photovoltaic power generation technology neck
Domain.
Background technology
With the fast development of new energy technology, new energy has become one of main energy sources from now in the world.In recent years
Come, it is fast-developing in the world as the renewable and clean energy resource generation technology of representative using solar energy.
In order to obtain higher voltage or electric current output, photovoltaic generating system by multiple serial or parallel connections photovoltaic module battle array
Row are constituted.The discreteness of photovoltaic module parameter or the difference of solar radiation condition can cause in the case of photovoltaic module series and parallel
Energy loss.Solar energy photovoltaic panel distribution is positioned over outdoor, and part or the factors such as intermittent masking or aging often occur
And cause the mismatch problems of series and parallel, cause these photovoltaic battery panel components that cannot be operated on maximum power point, largely effects on
The generated energy of entire photovoltaic generating system.
Currently, photovoltaic generating system can't identify the difference of series and parallel branch photovoltaic module, tune appropriate cannot be made
It is whole, to which generating efficiency be greatly lowered.For caused by the difference of the discreteness of photovoltaic module parameter or solar radiation condition
Energy loss is helpless, and how to overcome is current problem to be solved.
Invention content
The invention aims to overcome existing photovoltaic generating system that can't identify series and parallel branch photovoltaic module
Difference cannot make adjustment appropriate, the problem of to which generating efficiency be greatly lowered.The present invention's is electric for distributed photovoltaic
Stand the optimization method of generated energy, including the optimization of photovoltaic module array installation site, photovoltaic steering bracket angle of inclination it is real-time excellent
Change and the power optimization of photovoltaic module, three kinds of optimizations are used cooperatively, it is existing not will produce mismatch between photovoltaic panel and photovoltaic module
As, at the same each photovoltaic module can maximum power output, so that the generated energy of entire photovoltaic power station is optimal, moreover it is possible to
The generated energy of the photovoltaic generating system coming 10 years after photovoltaic module optimization is estimated, for reference, method is ingenious, and design is new
Grain husk has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of optimization method for photovoltaic power station generated energy includes the following steps,
Step（A）, the optimization of photovoltaic module array installation site, the real-time optimization at photovoltaic steering bracket angle of inclination
（A1）, according to meteorological statistics, the photovoltaic steering bracket for installing photovoltaic panel is arranged in photovoltaic power station
One longest region of annual solar irradiation time；
（A2）, configure photovoltaic steering bracket to spotlight tracking solar tracking operational mode, realize the photovoltaic panel on photovoltaic steering bracket
The current solar motion state of spotlight tracking, the maximum solar amount obtained in real time convenient for photovoltaic panel；
Step（B）, the power optimization of photovoltaic module
（B1）, the rectifier diode in Buck-Boost type of voltage step-up/down converter is worth small metal-oxide-semiconductor using on-state resistance and is taken
Buck-Boost buck-boost converters are converted to synchronous rectifier converter by generation；
(B2), the positive and negative input terminal of synchronous rectifier converter is connected with corresponding photovoltaic panel output end respectively, is gone forward side by side
Row self-test；
（B3）, corresponding two groups of metal-oxide-semiconductor break-makes in synchronous rectifier converter are controlled, synchronous rectifier converter is made to become without direct current
It changes, it is made to be operated in component pattern；
（B4）, after component pattern steady operation, other two groups of metal-oxide-semiconductor break-makes in synchronous rectifier converter are controlled, carry out direct current
Transformation, makes it be operated in boosting or boost mode；
（B5）, the synchronous rectifier converter is according to constant voltage tracing progress maximum power point search；
（B6）In maximum power point search, the pass of the detection input voltage vin and output voltage Vout of synchronous rectifier converter
System, if Vout<When 1.03Vin, show that the synchronous rectifier converter moves closer to DC converting in Boost topology and adjusts nargin
Critical point stops decompression mode, into boost mode；If Vout>When 0.97Vin, show that the synchronous rectifier converter gradually leans on
DC converting adjusts the critical point of nargin in nearly buck topology, stops boost mode, into decompression mode；
（B7）, by the output voltage Vout of synchronous rectifier converter, maintain 0.97Vi<Vout<Between 1.03Vin, control is same
Step rectifier converter enters MPPT maximum power point tracking pattern, makes photovoltaic panel steady operation at maximum power point；
Step（C）, the generated energy of the photovoltaic generating system coming 10 years after photovoltaic module optimization is estimated, using typical meteorological year
Meteorological data as the following generated energy of prediction.
A kind of optimization method for photovoltaic power station generated energy above-mentioned,（A1）, according to meteorological statistics, will be used for
The photovoltaic steering bracket of installation photovoltaic panel is arranged in previous year solar irradiation time longest region in photovoltaic power station,
Each photovoltaic steering bracket is distributed in square formation at equal intervals.
A kind of optimization method for photovoltaic power station generated energy above-mentioned,（A2）, photovoltaic steering bracket is configured
For spotlight tracking solar tracking operational mode, the azimuth of photovoltaic steering bracket and elevation angle control operation are carried out at the same time.
A kind of optimization method for photovoltaic power station generated energy above-mentioned,（B1）, the synchronous rectifier converter,
Including controller PV, the positive and negative input terminal of the controller PV is connected with corresponding photovoltaic panel output end respectively, the control
The positive input terminal of device PV processed is also connected with the drain electrode of one end of capacitance C1, N-channel MOS pipe Q1 respectively, the N-channel MOS pipe
The source electrode of Q1 is connected with the source electrode of N-channel MOS pipe Q2, the negative input end of the drain electrode and controller PV of the N-channel MOS pipe Q2
Son is connected, and the source electrode of the N-channel MOS pipe Q1 and the junction of the source electrode of N-channel MOS pipe Q2 pass through inductance L1 and P-channel
The drain electrode of metal-oxide-semiconductor Q3, the drain electrode of P-channel metal-oxide-semiconductor Q4 connect jointly, and the source electrode of the P-channel metal-oxide-semiconductor Q3 becomes as synchronous rectification
The positive output terminal of parallel operation, the source electrode of the P-channel metal-oxide-semiconductor Q4 as synchronous rectifier converter negative output terminal, it is described same
The negative input terminal of the negative output terminal, controller PV that walk rectifier converter is connected to the ground, the synchronous rectifier converter
Be parallel with capacitance C2 between positive and negative output terminals, the positive output terminal of the synchronous rectifier converter also with Schottky diode
The cathode of D1 is connected, and the anode of the Schottky diode D1 is connected to the ground.
A kind of optimization method for photovoltaic power station generated energy above-mentioned,（B5）, which presses
Maximum power point search is carried out according to constant voltage tracing, the voltage-tracing method is to be more than irradiation level threshold according to the irradiation level when light
It is worth and when temperature change is within 10 degrees Celsius, the maximum power point distribution on output power-voltage curve of photovoltaic cell
What the characteristic in a vertical line both sides was realized, according to formula（1）It is shown,
Umpp=kUoc （1）
Wherein, Uoc is the open-circuit voltage of photovoltaic array, and Umpp is the voltage in photovoltaic panel maximum power point kitchen, and k is proportionality coefficient,
Depending on the characteristic of photovoltaic panel, value range is between 0.75-0.85.
A kind of optimization method for photovoltaic power station generated energy above-mentioned, the irradiation level threshold value are 400W/m2.
A kind of optimization method for photovoltaic power station generated energy above-mentioned, step（C）, the typical meteorological year is
Using the nearly values of in monthly average, 30 as foundation, each month was closest to 30 years from being chosen 1 year in nearly 10 years meteorological datas
The time of the monthly average value is as typical meteorological year.
The beneficial effects of the invention are as follows：The optimization method for photovoltaic power station generated energy of the present invention, including light
The optimization of assembly array installation site, the real-time optimization at photovoltaic steering bracket angle of inclination and the power optimization of photovoltaic module are lied prostrate,
Three kinds of optimizations are used cooperatively, and mismatch phenomenon are not will produce between photovoltaic panel and photovoltaic module, while each photovoltaic module can be most
High-power output makes the generated energy of entire photovoltaic power station be optimal, moreover it is possible to estimate the light after photovoltaic module optimization
The generated energy of photovoltaic generating system coming 10 years, for reference, method is ingenious, novel, has a good application prospect.
Description of the drawings
Fig. 1 is the flow chart of the optimization method for photovoltaic power station generated energy of the present invention；
Fig. 2 is the circuit diagram of the synchronous rectifier converter of the present invention.
Specific implementation mode
Below in conjunction with Figure of description, the present invention will be further described.Following embodiment is only used for clearly
Illustrate technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
The optimization method for photovoltaic power station generated energy of the present invention, includes the following steps,
Step（A）, the optimization of photovoltaic module array installation site, the real-time optimization at photovoltaic steering bracket angle of inclination
（A1）, according to meteorological statistics, the photovoltaic steering bracket for installing photovoltaic panel is arranged in photovoltaic power station
One longest region of annual solar irradiation time, each photovoltaic steering bracket are distributed in square formation at equal intervals, are convenient for location and installation；
（A2）, configure photovoltaic steering bracket to spotlight tracking solar tracking operational mode, realize the photovoltaic panel on photovoltaic steering bracket
The current solar motion state of spotlight tracking, convenient for the maximum solar amount that photovoltaic panel obtains in real time, photovoltaic turns under the pattern
It is carried out at the same time to the azimuth of holder and elevation angle control operation, concrete operations can be as follows：
Judge the current real-time azimuthal angle angle value of photovoltaic steering bracket, when real-time azimuthal angle is less than or equal to 1 °, photovoltaic
Steering bracket steering bracket stops deflection when westwards deflecting to 1 °, and when elevation angle is less than or equal to 85 °, elevation angle is inclined northwards
The upper limit for going to 85 ° or permissible value, when elevation angle is more than 85 °, elevation angle deflects to the lower limit of 85 ° or permissible value southwards；When
When real-time azimuthal angle is more than 1 °, stop deflection when photovoltaic steering bracket steering bracket deflects to eastwards 1 °, be less than when elevation angle or
When person is equal to 85 °, elevation angle northwards deflects to the upper limit of 85 ° or permissible value, and when elevation angle is more than 85 °, elevation angle is inclined southwards
The lower limit of 85 ° or permissible value is gone to, the above operation and control strategy is suitable for the Northern Hemisphere；
Step（B）, the power optimization of photovoltaic module
（B1）, the rectifier diode in Buck-Boost type of voltage step-up/down converter is worth small metal-oxide-semiconductor using on-state resistance and is taken
Buck-Boost buck-boost converters are converted to synchronous rectifier converter by generation, as shown in Fig. 2,
The synchronous rectifier converter, including controller PV, the controller PV positive and negative input terminal respectively with corresponding light
Volt plate output end is connected, and is input voltage vin at this, the positive input terminal of the controller PV also respectively with capacitance C1 one
The drain electrode at end, N-channel MOS pipe Q1 is connected, and the source electrode of the N-channel MOS pipe Q1 is connected with the source electrode of N-channel MOS pipe Q2,
The drain electrode of the N-channel MOS pipe Q2 is connected with the negative input terminal of controller PV, the source electrode and N of the N-channel MOS pipe Q1
The junction of the source electrode of channel MOS tube Q2 is total by drain electrode, the drain electrode of P-channel metal-oxide-semiconductor Q4 of inductance L1 and P-channel metal-oxide-semiconductor Q3
With connection, the source electrode of the P-channel metal-oxide-semiconductor Q3 is defeated place's voltage at this as the positive output terminal of synchronous rectifier converter
Vout, the source electrode of the P-channel metal-oxide-semiconductor Q4 is as the negative output terminal of synchronous rectifier converter, the synchronous rectifier converter
Negative output terminal, controller PV negative input terminal be connected to the ground, the positive and negative output terminals of the synchronous rectifier converter
Between be parallel with capacitance C2, the positive output terminal of the synchronous rectifier converter is also connected with the cathode of Schottky diode D1
It connects, the anode of the Schottky diode D1 is connected to the ground；
(B2), the positive and negative input terminal of synchronous rectifier converter is connected with corresponding photovoltaic panel output end respectively, is gone forward side by side
Row self-test；
（B3）, corresponding two groups of metal-oxide-semiconductor break-makes in synchronous rectifier converter are controlled, synchronous rectifier converter is made to become without direct current
It changes, it is made to be operated in component pattern；
（B4）, after component pattern steady operation, other two groups of metal-oxide-semiconductor break-makes in synchronous rectifier converter are controlled, carry out direct current
Transformation, makes it be operated in boosting or boost mode；
（B5）, which carries out maximum power point search according to constant voltage tracing, and the voltage-tracing method is
According to when the irradiation level of light is more than irradiation level threshold value and temperature change within 10 degrees Celsius, the output work of photovoltaic cell
Maximum power point on rate-voltage curve is distributed in the characteristic realization of a vertical line both sides, according to formula（1）It is shown,
Umpp=kUoc （1）
Wherein, Uoc is the open-circuit voltage of photovoltaic array, and Umpp is the voltage in photovoltaic panel maximum power point kitchen, and k is proportionality coefficient,
Depending on the characteristic of photovoltaic panel, value range is between 0.75-0.85, it is preferred that the irradiation level threshold value is 400W/m2；
（B6）In maximum power point search, the pass of the detection input voltage vin and output voltage Vout of synchronous rectifier converter
System, if Vout<When 1.03Vin, show that the synchronous rectifier converter moves closer to DC converting in Boost topology and adjusts nargin
Critical point stops decompression mode, into boost mode；If Vout>When 0.97Vin, show that the synchronous rectifier converter gradually leans on
DC converting adjusts the critical point of nargin in nearly buck topology, stops boost mode, into decompression mode；
（B7）, by the output voltage Vout of synchronous rectifier converter, maintain 0.97Vi<Vout<Between 1.03Vin, control is same
Step rectifier converter enters MPPT maximum power point tracking pattern, makes photovoltaic panel steady operation at maximum power point；
Step（C）, the generated energy of the photovoltaic generating system coming 10 years after photovoltaic module optimization is estimated, using typical meteorological year
As the meteorological data of the following generated energy of prediction, the typical meteorological year is the monthly average value using nearly 30 years as foundation, from nearly 10
Year meteorological data in choose 1 year in each month closest to the value of in monthly average, 30 time as typical meteorological year.
In conclusion the optimization method for photovoltaic power station generated energy of the present invention, including photovoltaic module array
Installation site optimizes, and the real-time optimization at photovoltaic steering bracket angle of inclination and the power optimization of photovoltaic module, three kinds of optimizations are matched
Close and use, not will produce mismatch phenomenon between photovoltaic panel and photovoltaic module, at the same each photovoltaic module can maximum power output,
The generated energy of entire photovoltaic power station is set to be optimal, moreover it is possible to estimate the photovoltaic generating system after photovoltaic module optimization not
Carry out 10 years generated energy, for reference, method is ingenious, novel, has a good application prospect.
The basic principles and main features and advantage of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (7)
1. a kind of optimization method for photovoltaic power station generated energy, it is characterised in that：Include the following steps,
Step（A）, the optimization of photovoltaic module array installation site, the real-time optimization at photovoltaic steering bracket angle of inclination
（A1）, according to meteorological statistics, the photovoltaic steering bracket for installing photovoltaic panel is arranged in photovoltaic power station
One longest region of annual solar irradiation time；
（A2）, configure photovoltaic steering bracket to spotlight tracking solar tracking operational mode, realize the photovoltaic panel on photovoltaic steering bracket
The current solar motion state of spotlight tracking, the maximum solar amount obtained in real time convenient for photovoltaic panel；
Step（B）, the power optimization of photovoltaic module
（B1）, the rectifier diode in Buck-Boost type of voltage step-up/down converter is worth small metal-oxide-semiconductor using on-state resistance and is taken
Buck-Boost buck-boost converters are converted to synchronous rectifier converter by generation；
(B2), the positive and negative input terminal of synchronous rectifier converter is connected with corresponding photovoltaic panel output end respectively, is gone forward side by side
Row self-test；
（B3）, corresponding two groups of metal-oxide-semiconductor break-makes in synchronous rectifier converter are controlled, synchronous rectifier converter is made to become without direct current
It changes, it is made to be operated in component pattern；
（B4）, after component pattern steady operation, other two groups of metal-oxide-semiconductor break-makes in synchronous rectifier converter are controlled, carry out direct current
Transformation, makes it be operated in boosting or boost mode；
（B5）, the synchronous rectifier converter is according to constant voltage tracing progress maximum power point search；
（B6）In maximum power point search, the pass of the detection input voltage vin and output voltage Vout of synchronous rectifier converter
System, if Vout<When 1.03Vin, show that the synchronous rectifier converter moves closer to DC converting in Boost topology and adjusts nargin
Critical point stops decompression mode, into boost mode；If Vout>When 0.97Vin, show that the synchronous rectifier converter gradually leans on
DC converting adjusts the critical point of nargin in nearly buck topology, stops boost mode, into decompression mode；
（B7）, by the output voltage Vout of synchronous rectifier converter, maintain 0.97Vi<Vout<Between 1.03Vin, control is same
Step rectifier converter enters MPPT maximum power point tracking pattern, makes photovoltaic panel steady operation at maximum power point；
Step（C）, the generated energy of the photovoltaic generating system coming 10 years after photovoltaic module optimization is estimated, using typical meteorological year
Meteorological data as the following generated energy of prediction.
2. a kind of optimization method for photovoltaic power station generated energy according to claim 1, it is characterised in that：
（A1）, according to meteorological statistics, the photovoltaic steering bracket for installing photovoltaic panel is arranged in upper one year in photovoltaic power station
Solar irradiation time longest region is spent, each photovoltaic steering bracket is distributed in square formation at equal intervals.
3. a kind of optimization method for photovoltaic power station generated energy according to claim 1, it is characterised in that：
（A2）, configure photovoltaic steering bracket to spotlight tracking solar tracking operational mode, the azimuth of photovoltaic steering bracket and elevation angle control
System operation is carried out at the same time.
4. a kind of optimization method for photovoltaic power station generated energy according to claim 1, it is characterised in that：
（B1）, the synchronous rectifier converter, including controller PV, the controller PV positive and negative input terminal respectively with it is corresponding
Photovoltaic panel output end is connected, the positive input terminal of the controller PV also respectively with one end of capacitance C1, N-channel MOS pipe Q1
Drain electrode is connected, and the source electrode of the N-channel MOS pipe Q1 is connected with the source electrode of N-channel MOS pipe Q2, the N-channel MOS pipe Q2
Drain electrode be connected with the negative input terminal of controller PV, the source electrode of the source electrode and N-channel MOS pipe Q2 of the N-channel MOS pipe Q1
Junction connect jointly with the drain electrode of P-channel metal-oxide-semiconductor Q3, the drain electrode of P-channel metal-oxide-semiconductor Q4 by inductance L1, the P-channel
For the source electrode of metal-oxide-semiconductor Q3 as the positive output terminal of synchronous rectifier converter, the source electrode of the P-channel metal-oxide-semiconductor Q4 is whole as synchronizing
The negative output terminal of current converter, the negative output terminal of the synchronous rectifier converter, the negative input terminal of controller PV and ground
It is connected, capacitance C2 is parallel between the positive and negative output terminals of the synchronous rectifier converter, the synchronous rectifier converter
Positive output terminal is also connected with the cathode of Schottky diode D1, and the anode of the Schottky diode D1 is connected to the ground.
5. a kind of optimization method for photovoltaic power station generated energy according to claim 1, it is characterised in that：
（B5）, for the synchronous rectifier converter according to constant voltage tracing progress maximum power point search, the voltage-tracing method is basis
When the irradiation level of light is more than irradiation level threshold value and temperature change is within 10 degrees Celsius, output power-electricity of photovoltaic cell
The maximum power point on line of buckling is distributed in the characteristic realization of a vertical line both sides, according to formula（1）It is shown,
Umpp=kUoc （1）
Wherein, Uoc is the open-circuit voltage of photovoltaic array, and Umpp is the voltage in photovoltaic panel maximum power point kitchen, and k is proportionality coefficient,
Depending on the characteristic of photovoltaic panel, value range is between 0.75-0.85.
6. a kind of optimization method for photovoltaic power station generated energy according to claim 5, it is characterised in that：Institute
It is 400W/m2 to state irradiation level threshold value.
7. a kind of optimization method for photovoltaic power station generated energy according to claim 1, it is characterised in that：Step
Suddenly（C）, the typical meteorological year is the monthly average value using nearly 30 years as foundation, is chosen 1 year from nearly 10 years meteorological datas
In each month closest to the value of in monthly average, 30 time as typical meteorological year.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810243048.3A CN108322134A (en) | 2018-03-23 | 2018-03-23 | A kind of optimization method for photovoltaic power station generated energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810243048.3A CN108322134A (en) | 2018-03-23 | 2018-03-23 | A kind of optimization method for photovoltaic power station generated energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108322134A true CN108322134A (en) | 2018-07-24 |
Family
ID=62898281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810243048.3A Pending CN108322134A (en) | 2018-03-23 | 2018-03-23 | A kind of optimization method for photovoltaic power station generated energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108322134A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233592A (en) * | 2019-06-27 | 2019-09-13 | 西安中易建科技有限公司 | Realize the design method of power generation with the matched photovoltaic curtain wall of electricity consumption |
| CN113419566A (en) * | 2021-07-02 | 2021-09-21 | 阳光电源股份有限公司 | Method and system for adjusting tracking angle of photovoltaic module |
| CN114764262A (en) * | 2021-01-11 | 2022-07-19 | 领鞅科技(杭州)有限公司 | Method for predicting and controlling power generation power of solar power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163067A (en) * | 2011-04-11 | 2011-08-24 | 武汉万鹏科技有限公司 | Solar maximum power tracking method and solar charging device |
| CN102780398A (en) * | 2012-08-17 | 2012-11-14 | 河海大学常州校区 | Intelligent component optimizer for solar photovoltaic cell panel and control method thereof |
| CN104182564A (en) * | 2014-06-26 | 2014-12-03 | 内蒙古电力勘测设计院有限责任公司 | Expert system designed for photovoltaic power station |
| CN107482992A (en) * | 2017-10-11 | 2017-12-15 | 河海大学 | A kind of power station level photovoltaic inclination angle optimization method for considering economic factor |
-
2018
- 2018-03-23 CN CN201810243048.3A patent/CN108322134A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163067A (en) * | 2011-04-11 | 2011-08-24 | 武汉万鹏科技有限公司 | Solar maximum power tracking method and solar charging device |
| CN102780398A (en) * | 2012-08-17 | 2012-11-14 | 河海大学常州校区 | Intelligent component optimizer for solar photovoltaic cell panel and control method thereof |
| CN104182564A (en) * | 2014-06-26 | 2014-12-03 | 内蒙古电力勘测设计院有限责任公司 | Expert system designed for photovoltaic power station |
| CN107482992A (en) * | 2017-10-11 | 2017-12-15 | 河海大学 | A kind of power station level photovoltaic inclination angle optimization method for considering economic factor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233592A (en) * | 2019-06-27 | 2019-09-13 | 西安中易建科技有限公司 | Realize the design method of power generation with the matched photovoltaic curtain wall of electricity consumption |
| CN110233592B (en) * | 2019-06-27 | 2021-05-07 | 西安中易建科技有限公司 | Design method of photovoltaic curtain wall for realizing matching of power generation and power utilization |
| CN114764262A (en) * | 2021-01-11 | 2022-07-19 | 领鞅科技(杭州)有限公司 | Method for predicting and controlling power generation power of solar power station |
| CN114764262B (en) * | 2021-01-11 | 2023-08-15 | 领鞅科技(杭州)有限公司 | Solar power station power generation power prediction and control method |
| CN113419566A (en) * | 2021-07-02 | 2021-09-21 | 阳光电源股份有限公司 | Method and system for adjusting tracking angle of photovoltaic module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2756195C (en) | System and method for combining electrical power from photovoltaic sources | |
| Strache et al. | A comprehensive, quantitative comparison of inverter architectures for various PV systems, PV cells, and irradiance profiles | |
| US20120161526A1 (en) | Dc power source conversion modules, power harvesting systems, junction boxes and methods for dc power source conversion modules | |
| US20110198935A1 (en) | Inverter for a three-phase ac photovoltaic system | |
| CN102780398B (en) | Intelligent component optimizer for solar photovoltaic cell panel and control method thereof | |
| US10090701B2 (en) | Solar power generation system | |
| CN109270982A (en) | A kind of photovoltaic maximum power tracking and controlling method | |
| KR101408855B1 (en) | Micro convertor device using photovoltaic module and control method thereof | |
| CN105896603B (en) | A kind of wind-solar-storage joint electricity generation system and method | |
| CN108322134A (en) | A kind of optimization method for photovoltaic power station generated energy | |
| MX2014005359A (en) | System and method for power conversion for renewable energy sources. | |
| CN108258718A (en) | Inverter, collecting and distributing type header box, limit power control system and method | |
| CN213279182U (en) | Photovoltaic power generation system with optimized voltage control | |
| CN114204588A (en) | Method for optimizing voltage control and photovoltaic power generation system | |
| Wang et al. | New MPPT solar generation implemented with constant-voltage constant-current DC/DC converter | |
| US20120013288A1 (en) | Solar cell system | |
| CN202797636U (en) | Photovoltaic direct current power distribution cabinet adopting Boost circuits | |
| CN109672213B (en) | Power optimization system containing secondary optimization and optimization method thereof | |
| Waghmare et al. | A drift free perturb & observe MPPT in PV system | |
| CN109787213B (en) | Power supply system and implementation method thereof | |
| CN115800402A (en) | Low-voltage high-capacity combined type regional power optimization photovoltaic module and power generation system | |
| JP2019161846A (en) | Conversion device and hybrid power supply system | |
| CN114844112A (en) | Method and system for reducing series-parallel mismatch loss of photovoltaic set | |
| Shetty et al. | Analysis of photovoltaic systems to achieve maximum power point tracking with variable inductor | |
| KR102333360B1 (en) | Power Generation System and control method with boost converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |