CN110365060A - A kind of photovoltaic generating system - Google Patents
A kind of photovoltaic generating system Download PDFInfo
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- CN110365060A CN110365060A CN201910763631.1A CN201910763631A CN110365060A CN 110365060 A CN110365060 A CN 110365060A CN 201910763631 A CN201910763631 A CN 201910763631A CN 110365060 A CN110365060 A CN 110365060A
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- 238000010248 power generation Methods 0.000 claims abstract description 54
- 230000033228 biological regulation Effects 0.000 claims abstract description 47
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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- H02J3/383—
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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
Abstract
The invention discloses a kind of photovoltaic generating systems, it is mainly used in technical field of photovoltaic power generation, it specifically includes: at least one photovoltaic power generation subsystem, each photovoltaic power generation subsystem includes at least one photovoltaic electrification component, at least one voltage regulation part and boost parts, realize that each photovoltaic module exports a scheduled voltage value by voltage regulation part, the identical voltage regulation part of output voltage values is connected in parallel, parallel connection access boost parts, requirement of the output voltage values of boost parts according to header box to photovoltaic group string voltage is set, the identical boost parts of output voltage values is finally connected to header box, this not concatenated Independent Power Generation converges technology, it ensure that each photovoltaic module, every group of power generation sub-system can be the same as pressure confluence, to make power output effect of photovoltaic battery panel maximize, improve photovoltaic efficiency, increase The income of photo-voltaic power generation station realizes the quick cost recovery of photo-voltaic power generation station.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, more particularly to one kind to be based on photovoltaic generating system.
Background technique
Photovoltaic power generation technology has had permanent development, and photovoltaic power generation engineering project has been applied very extensive.18%
Photoelectric conversion rate be photovoltaic power generation huge technical bottleneck, it is overall too poor to the conversion ratio of luminous energy.Do not changing any former light
On the basis of lying prostrate power generation medium (including the contents such as silicon, PN plate, light projector glass cement), photovoltaic forward rate is promoted, luminous energy integrally generates electricity
Amount is the research direction of current field of photovoltaic power generation.The technology of its core is how the electronics of acquisition luminous energy to be not consumed
And charging end is quickly reached, externally the electric energy that luminous energy converts is forwarded again.
Inside electronic technology, the glide path of electronics has series, parallel two ways.Traditional photovoltaic generating system
It is that the identical photovoltaic module of multiple photoelectric characteristics is cascaded, multiple groups are connected in series through photovoltaic array conflux box and are connected in parallel on one again
Rise, formed photovoltaic power generation photovoltaic array is grid-connected or Independent Power Generation model, as shown in Figure 1, this model wants stable electric generation to want two
A condition: first is that whole photovoltaic module photovoltaic properties will be damaged unanimously, select photovoltaic module unanimously when building a station and present photovoltaic group
Part technique can securely guarantee very much.Second is that whole photovoltaic modulies will obtain the sunlight irradiation of same intensity, could ensure each
The photovoltaic property of photovoltaic module is consistent.We are obtained by experiment the results show that in photovoltaic cell tandem 1, wherein one
A photovoltaic cell has carried out sunlight and has blocked, this when, the voltage PV1 of the output of photovoltaic cell tandem 1 was equal to single photovoltaic module
Photovoltaic cell voltage between voltage and 0, rather than in each series component is added.And when there are photovoltaic cells in PV1 to PVn
When the voltage exported of connecting is unequal, there is a reversed diode control highest PV current reflux, then output voltage is equal to highest
Voltage, electric current are equal to the electric current of highest photovoltaic cell series connection, cannot achieve output voltage and are equal to unified voltage, electric current superposition.For
This greatly reduces the power output of luminous energy conversion, reduces the transformation efficiency of luminous energy conversion electric energy.
And real photovoltaic power generation application in, it is a piece of fallen leaves, one stick together birds droppings, a high-altitude shade, a black clouds all be easy
Make one block of photovoltaic electrification component sunlight irradiation in entire electricity generation system uneven, so that the photovoltaic cell of photovoltaic cell series connection
Output photoelectric characteristic is inconsistent, and then entire concatenated PV will be made to reduce, and the PV value in parallel connection will be inconsistent, then entire string
The electric current of connection cannot add up into header box.Therefore, each photovoltaic battery panel aging in existing photovoltaic generating system, dust,
The a variety of causes such as rain and dew, foreign object block, sunlight shines partially, cloud layer, the output photoelectric characteristic that can make photovoltaic cell connect are different
It causes, it is low so as to cause photovoltaic efficiency, increase the cost of photovoltaic generating system application, is unfavorable for answering for photovoltaic generating system
With popularization.
Summary of the invention
The invention discloses a kind of photovoltaic generating systems, mainly solve each photovoltaic battery panel in conventional photovoltaic electricity generation system
The a variety of causes such as aging, dust, rain and dew, foreign object block, sunlight partially photograph, cloud layer formed power generation characteristics it is inconsistent caused by generate electricity effect
The low problem of rate.Purpose is to promote the utilization efficiency of solar energy, increases the income of photo-voltaic power generation station, realizes photovoltaic power generation
The quick cost recovery stood.
The embodiment of the invention provides a kind of photovoltaic generating systems characterized by comprising
M photovoltaic power generation subsystem, the m photovoltaic power generation subsystem are electrically connected by way of in parallel with header box,
Wherein m is positive integer；
Each photovoltaic power generation subsystem includes n photovoltaic electrification component, n voltage regulation part and a boost parts,
Each photovoltaic electrification component is made of p photovoltaic cell series connection, and the output end of each photovoltaic electrification component is corresponding to be connected
Connect the input terminal of a voltage regulation part, the output end of the n voltage regulation part by way of in parallel with the boosting section
The input terminal of part connects, and the output end of the boost parts is connect with the input terminal of the header box, wherein the voltage regulation part
For by the output voltage stabilization of each photovoltaic electrification component to the first scheduled voltage, the boost parts is used for will be every
The output voltage of a photovoltaic power generation subsystem boosts to the second scheduled voltage from first scheduled voltage, wherein n,
P is respectively positive integer.
Preferably, the voltage regulation part uses DC/DC voltage-stablizer.
Preferably, the boost parts uses DC/DC booster or DC/AC booster.
Preferably, the voltage regulation part be specifically used for will be in the corresponding n output voltage values of the n photovoltaic electrification component
Maximum voltage value is set as first scheduled voltage；
The voltage regulation part is boosted the output voltage values of each photovoltaic electrification component by way of pressure stabilizing of boosting
It is stabilized to first scheduled voltage.
Preferably, the voltage regulation part is specifically also used to the corresponding n output voltage values of the n photovoltaic electrification component
Middle minimum voltage value is set as first scheduled voltage；
The voltage regulation part is depressurized the output voltage values of each photovoltaic electrification component by way of pressure-reduced and-regulated
It is stabilized to first scheduled voltage.
The present invention provides a kind of photovoltaic generating systems, mainly have the advantages that
1, the output voltage of each photovoltaic electrification component is mainly stabilized to by the first scheduled voltage by voltage regulation part,
So that all photovoltaic electrification components is exported same voltage value by voltage regulation part, avoids each photovoltaic electric after connecting because of photovoltaic battery panel
The a variety of causes such as pond plate aging, dust, rain and dew, foreign object block, sunlight partially photograph, cloud layer cause different voltage characteristics, and cause
Loss electric energy between each other, to improve photovoltaic efficiency；
2, it through the embodiment of the present invention, can need to select characteristic consistent without being confined to traditional photovoltaic generating system
Photovoltaic battery panel, i.e. photovoltaic electrification component, practicability are also stronger；
3, the output voltage boosting of multiple photovoltaic power generation subsystems is stabilized to by the second scheduled voltage by boost parts,
So that all photovoltaic power generation subsystems is exported same voltage value by boost parts, and is converged into electric energy by parallel way
Case is flowed, output effect of photovoltaic battery panel is maximized, improves the utilization efficiency that solar energy is converted into electric energy, increases photovoltaic power generation
The income stood realizes the fast speed recycling of photo-voltaic power generation station cost；
4, the embodiment of the present invention only needs to realize using DC/DC voltage-stablizer, DC/DC booster or DC/AC booster, and
It does not need to carry out upgrading to the original structure of photovoltaic battery panel, cost of implementation is low, may advantageously facilitate application of the invention and pushes away
Extensively.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1, for the structural schematic diagram of photovoltaic generating system in the prior art；
Fig. 2, for a kind of structural schematic diagram of photovoltaic generating system provided by the invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
As shown in Fig. 2, the system specifically includes the present invention provides a kind of photovoltaic generating system:
M photovoltaic power generation subsystem, the m photovoltaic power generation subsystem are electrically connected by way of in parallel with header box,
Wherein m is positive integer；
Each photovoltaic power generation subsystem includes n photovoltaic electrification component, n voltage regulation part and a boost parts,
Each photovoltaic electrification component is made of p photovoltaic cell series connection, and the output end of each photovoltaic electrification component is corresponding to be connected
Connect the input terminal of a voltage regulation part, the output end of the n voltage regulation part by way of in parallel with the boosting section
The input terminal of part connects, and the output end of the boost parts is connect with the input terminal of the header box, wherein the voltage regulation part
For by the output voltage stabilization of each photovoltaic electrification component to the first scheduled voltage, the boost parts is used for will be every
The output voltage of a photovoltaic power generation subsystem boosts to the second scheduled voltage from first scheduled voltage, wherein n,
P is respectively positive integer.
It should be noted that DC/DC voltage-stablizer can be used in above-mentioned voltage regulation part, DC/DC booster is can be used in boost parts
Or DC/AC booster, it can belong to the prior art from obtaining on the market, about DC/DC voltage-stablizer, DC/DC booster or DC/
The explanation of the specific structure of AC booster and specific voltage regulator circuit, booster circuit, details are not described herein.
Specifically, several photovoltaic cells are connected, photovoltaic electrification component is formed, each photovoltaic electrification component is equal
Connect a voltage regulation part, the input terminal of the output end connection voltage regulation part of photovoltaic electrification component, the n photovoltaic electrification component
Input terminal of the output end respectively with n voltage regulation part be correspondingly connected with, the output end of the n voltage regulation part is by after in parallel
It is connect with the input terminal of boost parts, constitutes a photovoltaic power generation subsystem.The output end of each boost parts corresponding one
The output end of a photovoltaic power generation subsystem, m photovoltaic power generation subsystem of prime number are corresponding with m boost parts, the m boosting section
Part is connected by parallel realize later with header box, constitutes entire photovoltaic generating system, wherein m, n are positive integer.
It illustrates in embodiment about photovoltaic cell plate serioparallel characteristic and realization principle to facilitate the understanding of the present invention
It is bright, since several photovoltaic cells are connected, photovoltaic electrification component is formed, therefore, when photovoltaic cell 1 and photovoltaic cell 2 exist
Under the irradiation of equal conditions sunlight, the current value of output is identical.When photovoltaic cell 1 is blocked half, the light of photovoltaic cell 1
Volt property and the characteristic of photovoltaic cell 2 are inconsistent, and output voltage values reduce, due to the output of photovoltaic cell 1 and photovoltaic cell 2
Voltage value is different, so that there are electric energy losses between photovoltaic cell 1 and photovoltaic cell 2, but passes through the voltage regulation part for photovoltaic
It is equal to realize voltage to a scheduled voltage for the output voltage stabilization of battery 1 and photovoltaic cell 2.
Similarly, when photovoltaic electrification component 1 and photovoltaic electrification component 2 are according to the connection of traditional photovoltaic generating system, they
Between belong to concatenated structure, therefore under the irradiation of equal conditions sunlight, the current value of output is identical, when photovoltaic power generation
When component 1 blocks half, then the photovoltaic property of photovoltaic electrification component 1 and the characteristic of photovoltaic electrification component 2 are inconsistent, photovoltaic power generation
Component 1 exports the output electric current that electric current is lower than photovoltaic electrification component 2, then photovoltaic electrification component 2 can there are portion of electrical current reflux
Into photovoltaic electrification component 1, so in order to guarantee that it is defeated that identical voltage may be implemented in photovoltaic electrification component 1 and photovoltaic electrification component 2
Out, and not it is influenced by external condition, photovoltaic electrification component 1 is passed through in order to which the voltage for realizing in parallel is identical using parallel connection respectively
With the corresponding voltage regulation part 1 of photovoltaic electrification component 2 and voltage regulation part 2, by the electricity of photovoltaic electrification component 1 and photovoltaic electrification component 2
Pressure is all stabilized to first scheduled voltage.Equal to realize voltage, electric current is cumulative, avoids because of photovoltaic electrification component
Characteristic between 1 and photovoltaic electrification component 2 is inconsistent, and leads to the electric energy between photovoltaic electrification component 1 and photovoltaic electrification component 2
Loss improves photovoltaic efficiency, and the photovoltaic battery panel series connection for solving different characteristics in conventional photovoltaic electricity generation system can be mutual
The technical issues of electric energy is lost.
Preferably, the voltage regulation part be specifically used for will be in the corresponding n output voltage values of the n photovoltaic electrification component
Maximum voltage value is set as first scheduled voltage；
The voltage regulation part is boosted the output voltage values of each photovoltaic electrification component by way of pressure stabilizing of boosting
It is stabilized to first scheduled voltage.
Preferably, the voltage regulation part is specifically also used to the corresponding n output voltage values of the n photovoltaic electrification component
Middle minimum voltage value is set as first scheduled voltage；
The voltage regulation part is depressurized the output voltage values of each photovoltaic electrification component by way of pressure-reduced and-regulated
It is stabilized to first scheduled voltage.
Specifically, the voltage regulation part in the embodiment of the present invention mainly uses the pressure stabilizing design method of two kinds of output voltage values,
One is the methods by boosting pressure stabilizing, illustrate by taking one of photovoltaic power generation subsystem as an example, by the n photovoltaic power generation group
Maximum voltage value is set as the first scheduled voltage in the corresponding n output voltage values of part, and the n voltage regulation part passes through respectively
Stable mode of boosting is by each in the photovoltaic power generation subsystem in addition to the highest photovoltaic electrification component of above-mentioned voltage value
The output voltage values of photovoltaic electrification component are all stabilized to the first scheduled voltage；Another kind is the method by pressure-reduced and-regulated, will
Minimum voltage value is set as the first scheduled voltage, the n in the corresponding n output voltage values of the n photovoltaic electrification component
A voltage regulation part is sent out by depressurizing stable mode by the minimum photovoltaic of above-mentioned voltage value is removed in the photovoltaic power generation subsystem respectively
The output voltage values of each photovoltaic electrification component other than electrical component are stabilized to the first scheduled voltage, in this way, by the light
The output voltage of each of volt power generation sub-system photovoltaic electrification component is all stabilized to the output valve of the same setting, in order to
Photovoltaic generating system realizes parallel connection, to realize that voltage is equal, electric current is cumulative, and then improves photovoltaic efficiency.
It should be noted that each boost parts is correspondingly connected with a photovoltaic power generation subsystem, each boost parts
The output voltage values of photovoltaic power generation subsystem for will be correspondingly connected with boost to the second scheduled voltage, realize the low electricity of high voltage
Stream converges convenient for the transmission of electric energy, reduces the electric energy loss in transmission process, the electricity for then exporting each photovoltaic power generation subsystem
It can converge in header box, be used power output by header box, the first scheduled voltage in the embodiment of the present invention and
Two scheduled voltages can be configured according to the demand of actual electricity generation system, and details are not described herein again.
It should be noted that the n voltage regulation part passes through in the embodiment of the present invention in each photovoltaic power generation subsystem
It is connect after in parallel with a boost parts, the n voltage regulation part and the boost parts can integrate as an equipment, be
Facilitate description, named with optimizer, which includes n voltage regulation part and a boost parts, the then input of the optimizer
Port can connect a photovoltaic power generation according to customized several input interfaces of setting of practical application scene, each input interface
Component, the output end of the optimizer include the output port of a boost parts, which can be used for connecting header box.Therefore,
It may be implemented the technical solution of the embodiment of the present invention by multiple optimizers, multiple optimizers are by way of in parallel and confluence
Case is attached, and by the setting of the boost parts of optimizer output port, each optimizer output voltage guarantee is identical, and
It realizes that height forces down and flows to header box transmission electric energy, avoid the electric energy loss in transmission process.
Specifically, above-mentioned multiple optimizers can also be integrated into an optimization equipment, which includes several
Above-mentioned optimizer is set as an output interface, the output interface and remittance after several internal optimizer output ends are in parallel
Case connection is flowed, and the output voltage of the optimization equipment several optimizers for including is identical, to realize parallel connection.
The present invention provides a kind of photovoltaic generating systems, mainly pass through voltage regulation part for the output voltage of photovoltaic electrification component
It is stabilized to the first scheduled voltage, so that all photovoltaic electrification components is exported same voltage value by voltage regulation part, avoids because of light
The a variety of causes such as each photovoltaic battery panel aging after volt solar panel series connection, dust, rain and dew, foreign object block, sunlight partially photograph, cloud layer cause
Different voltage characteristics, and lead to that electric energy is lost between each other, so that photovoltaic efficiency is improved, meanwhile, pass through boost parts
The output voltage boosting of multiple photovoltaic power generation subsystems is stabilized to the second scheduled voltage, makes all photovoltaic power generation subsystems
Same voltage value is exported by boost parts, and electric energy is converged by header box by parallel way, realizes that voltage value is equal, electricity
Stream is cumulative, so that power output effect of photovoltaic battery panel be made to maximize, improves the utilization efficiency that solar energy is converted into electric energy, increases
The income for adding photo-voltaic power generation station realizes the quick cost recovery of photo-voltaic power generation station.
The preferred embodiment of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, several deformations can also be made, improves and substitutes, these belong to this hair
Bright protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (5)
1. a kind of photovoltaic generating system characterized by comprising
M photovoltaic power generation subsystem, the m photovoltaic power generation subsystem are electrically connected by way of in parallel with header box, wherein m
For positive integer；
Each photovoltaic power generation subsystem includes n photovoltaic electrification component, n voltage regulation part and a boost parts, each
The photovoltaic electrification component is made of p photovoltaic cell series connection, and the output end of each photovoltaic electrification component is correspondingly connected with one
The input terminal of a voltage regulation part, the output end of the n voltage regulation part by way of in parallel with the boost parts
Input terminal connection, the output end of the boost parts is connect with the input terminal of the header box, wherein the voltage regulation part is used for
By the output voltage stabilization of each photovoltaic electrification component to the first scheduled voltage, the boost parts is used for each institute
The output voltage for stating photovoltaic power generation subsystem boosts to the second scheduled voltage from first scheduled voltage, and wherein n, p points
It Wei not positive integer.
2. photovoltaic generating system according to claim 1, which is characterized in that the voltage regulation part uses DC/DC voltage-stablizer.
3. photovoltaic generating system according to claim 1 or 2, which is characterized in that the boost parts is boosted using DC/DC
Device or DC/AC booster.
4. photovoltaic generating system according to claim 3, which is characterized in that the voltage regulation part is specifically used for the n
Maximum voltage value is set as first scheduled voltage in the corresponding n output voltage values of a photovoltaic electrification component；
The voltage regulation part, which is boosted the output voltage values of each photovoltaic electrification component by way of pressure stabilizing of boosting, to be stablized
To first scheduled voltage.
5. photovoltaic generating system according to claim 3, which is characterized in that the voltage regulation part is specifically also used to will be described
Minimum voltage value is set as first scheduled voltage in the corresponding n output voltage values of n photovoltaic electrification component；
The voltage regulation part, which is depressurized the output voltage values of each photovoltaic electrification component by way of pressure-reduced and-regulated, to be stablized
To first scheduled voltage.
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| CN201910763631.1A CN110365060A (en) | 2019-08-19 | 2019-08-19 | A kind of photovoltaic generating system |
| PCT/CN2020/108444 WO2021031933A1 (en) | 2019-08-19 | 2020-08-11 | Photovoltaic power generation system |
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| CN201910763631.1A CN110365060A (en) | 2019-08-19 | 2019-08-19 | A kind of photovoltaic generating system |
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|---|---|---|---|---|
| WO2021031933A1 (en) * | 2019-08-19 | 2021-02-25 | 西藏富鼎实业有限公司 | Photovoltaic power generation system |
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| US20090284078A1 (en) * | 2008-05-14 | 2009-11-19 | National Semiconductor Corporation | System and method for integrating local maximum power point tracking into an energy generating system having centralized maximum power point tracking |
| CN103825299A (en) * | 2014-02-28 | 2014-05-28 | 深圳市长昊机电有限公司 | Grid-connected photovoltaic power generation system and control method thereof |
| CN108539783A (en) * | 2018-04-04 | 2018-09-14 | 云南电网有限责任公司电力科学研究院 | Photovoltaic plant DC boosting collects access system and its control guard method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106941263B (en) * | 2017-04-24 | 2019-04-23 | 浙江大学 | A kind of centralized photovoltaic generating system that distributed MPPT may be implemented |
| CN107612035A (en) * | 2017-10-24 | 2018-01-19 | 武汉大学 | A kind of raising photovoltaic generation based on addition interconnection switch structure collects the method for system light-load efficiency |
| CN110365060A (en) * | 2019-08-19 | 2019-10-22 | 周建军 | A kind of photovoltaic generating system |
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- 2019-08-19 CN CN201910763631.1A patent/CN110365060A/en active Pending
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| US20090284078A1 (en) * | 2008-05-14 | 2009-11-19 | National Semiconductor Corporation | System and method for integrating local maximum power point tracking into an energy generating system having centralized maximum power point tracking |
| CN103825299A (en) * | 2014-02-28 | 2014-05-28 | 深圳市长昊机电有限公司 | Grid-connected photovoltaic power generation system and control method thereof |
| CN108539783A (en) * | 2018-04-04 | 2018-09-14 | 云南电网有限责任公司电力科学研究院 | Photovoltaic plant DC boosting collects access system and its control guard method |
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| WO2021031933A1 (en) * | 2019-08-19 | 2021-02-25 | 西藏富鼎实业有限公司 | Photovoltaic power generation system |
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