CN107947236A - A kind of energy-saving inversion boosting complexes and method for photovoltaic generation - Google Patents
A kind of energy-saving inversion boosting complexes and method for photovoltaic generation Download PDFInfo
- Publication number
- CN107947236A CN107947236A CN201711325410.3A CN201711325410A CN107947236A CN 107947236 A CN107947236 A CN 107947236A CN 201711325410 A CN201711325410 A CN 201711325410A CN 107947236 A CN107947236 A CN 107947236A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- power
- energy
- combining inverter
- switch element
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 22
- 238000010248 power generation Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000005284 excitation Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H02J3/383—
-
- 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
- Supply And Distribution Of Alternating Current (AREA)
- Inverter Devices (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of energy-saving inversion boosting complexes and method for photovoltaic generation, device includes photovoltaic combining inverter, step-up power transformers and switch element, photovoltaic combining inverter, for direct current energy to be changed into AC energy, and realize the function of voltage adjustable ac source, send unit of the switch control command to switch；Step-up power transformers, the AC energy for photovoltaic combining inverter to be exported boost to be sent into power grid after high pressure；Switch element, according to switch control command, the electrical connection being turned on or off between step-up power transformers and power grid, and grid side, the voltage magnitude and waveform of step-up power transformers side are detected, feed back to photovoltaic combining inverter；The present invention can be good at meeting that photovoltaic generation exits transformer at night, saves energy consumption and reduces electricity charge expense, while input transformer without reducing reliability and equipment life, is skillfully constructed, it is convenient to realize, has a good application prospect in time before power generation.
Description
Technical field
The present invention relates to photovoltaic generation component technology field, and in particular to a kind of energy-saving inversion liter for photovoltaic generation
It is pressed into covering device and method.
Background technology
With the fast development of new energy science and technology, solar power generation is used widely and fast development, solar grid-connected
Electricity generation system, major way are to pass through step-up power transformers（Such as box-type substation）By photovoltaic grid-connected inversion in photovoltaic module
The electric energy of device output is sent into power grid（The voltage class of China is typically 10kV or 35kV）, it is currently practical on do not account at night
Stop the energy waste problem of the unloaded energy consumption of these power transformers during power generation.
Solar grid-connected electricity generation system can collect solar radiant energy, generally pass through photovoltaic module using photovoltaic effect
Solar radiant energy is converted into direct current energy, direct current energy is changed into AC energy by photovoltaic combining inverter and inputs liter
The low-pressure side of piezoelectric forces transformer, the high-pressure side of high-tension transformer connect collection electric line by " T " and are sent by it to switchgear, switch
Cabinet accesses the high voltage bus of switchgear house, and in power generation, electric energy is sent into power grid like this.
When stopping generating electricity（Typically night）, step-up power transformers are to be under light condition to run, power grid electric energy
Step-up power transformers are sent into by high voltage bus, switchgear, collection electric line, at this moment step-up power transformers are as load consumption electricity
Energy.For example, certain photovoltaic power station uses 5 10kV voltage class Split type dry-type transformers（SCFB10-1000/500/
500kVA）" T " connects the high voltage bus that collection electric line is sent into switchgear house, and the no-load loss power of every transformer is about 1.74kW,
Summer stops length during power generation, and when being about 11 small, the no-load loss 19.14kWh of every transformer, often spends electricity with big commercial power
Take 0.64 yuan of calculating, daily to pay 12.25 yuan of the electricity charge, the electricity charge that the night of annual this kind of transformer produces will be more than 4470 yuan.
Transformer is exited at night can save energy consumption and reduce electricity charge expense, and still, transformer is in idle-loaded switching-on, meeting
There is excitation surge current, be actually unable in exiting and put into realization simply by transformer.The excitation surge current of transformer is transformation
The transient current that device full voltage produces when being powered in its winding, the residual flux before transformer is put into iron core are thrown with transformer
When the flow direction that fashionable operating voltage produces is identical, therefore its total magnetic flux, can be produced considerably beyond the saturation flux amount of iron core
It is raw it is larger shoves, wherein peak-peak can reach 6-8 times of transformer rated current.
The phase angle of system voltage, the residual flux of transformer core and power-supply system hinder when excitation surge current is put into transformer
The factor such as anti-is related, and maximum excitation surge current occurs, moment of the voltage through zero crossing when transformer is put into（This when magnetic flux be peak
Value）, excitation surge current can cause electro-mechanical wave in some cases, if do not taken corresponding measure, may cause transformer overcurrent or
Protective relaying maloperation is made, and causes to power off, and influences other users use.In addition, high-tension transformer does idle-loaded switching-on operation production daily
Raw excitation surge current brings voltage current impact, thermal shock, electromagnetic action, can cause mechanical force and the vibration of inside transformer,
And then shorten its service life.
In order to meet that photovoltaic generation can exit transformer at night, to save energy consumption and to reduce electricity charge expense, meanwhile,
The transformer is put into before power generation in time, and does not reduce reliability and equipment life, is the technical problem for being currently needed for solving.
The content of the invention
The purpose of the present invention is overcoming how to realize that photovoltaic generation exits transformer at night, save energy consumption and reduce the electricity charge
While expense, the problem of not reducing reliability and equipment life.The present invention be used for photovoltaic generation energy-saving inversion boosting into
Covering device and method, add switch element, according to switch control command, the step-up power transformers that are turned on or off and power grid it
Between electrical connection, can be good at meeting that photovoltaic generation exits transformer at night, saving energy consumption simultaneously reduces electricity charge expense, together
When input transformer without reducing reliability and equipment life, is skillfully constructed in time before power generation, it is convenient to realize, has good
Application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of energy-saving inversion boosting complexes for photovoltaic generation, including photovoltaic combining inverter, step-up power transformation
Device and switch element,
The photovoltaic combining inverter, for direct current energy to be changed into AC energy, and realizes voltage adjustable ac source
Function, sends unit of the switch control command to switch；
The step-up power transformers, the AC energy boosting for photovoltaic combining inverter to be exported are feeding electricity after high pressure
Net；
The switch element, according to switch control command, is turned on or off electrically connecting between step-up power transformers and power grid
Connect, and detect grid side, the voltage magnitude and waveform of step-up power transformers side, feed back to photovoltaic combining inverter；
The direct current energy of the external photovoltaic generation of input terminal of the photovoltaic combining inverter, the output of the photovoltaic combining inverter
End is connected with the output terminal of step-up power transformers, and the output terminal of the step-up power transformers accesses electricity by switch element
Net, the switch element are also connected with photovoltaic combining inverter.
A kind of foregoing energy-saving inversion boosting complexes for photovoltaic generation, the photovoltaic combining inverter pass through
Its internal communication remote control module is configured to transmit into row information with switch element；Read and opened by its internal communication remote control module
The voltage signal of unit both sides is closed, and is worked according to variable voltage source scheme control photovoltaic combining inverter, progressively adjusts output
Voltage magnitude, frequency and phase so that the voltage signal of switch element both sides sends remote control combined floodgate and refer to the same same phase of frequency of amplitude
Make to switch element, after switch element closing success, photovoltaic combining inverter switchs to conventional gird-connected inverter pattern work.
A kind of foregoing energy-saving inversion boosting complexes for photovoltaic generation, the switch element are opened including electric power
Pass and control module.
A kind of foregoing energy-saving inversion boosting complexes for photovoltaic generation, it is mutual that the control module contains voltage
Sensor, for detecting the voltage signal of power switch both sides, sends voltage signal to photovoltaic combining inverter, and receive photovoltaic simultaneously
The remote signal of net inverter fed, and then drive power switch is turned on or off.
A kind of foregoing energy-saving inversion boosting complexes for photovoltaic generation, the power switch for breaker,
Contactor or electric isolating switch.
A kind of foregoing energy-saving inversion boosting complexes for photovoltaic generation,：The power switch conduction is disconnected
Open, control the electrical connection between step-up power transformers and power grid.
A kind of complete method of energy-saving inversion boosting for photovoltaic generation, comprises the following steps,
Step（A）, during photovoltaic module normal power generation on daytime, photovoltaic combining inverter is conventional photovoltaic gird-connected inverter state, light
The direct current energy that volt component produces is input to photovoltaic combining inverter and is converted to AC energy, and be sent into step-up power transformers into
Row boosts, and by the AC energy after boosting, the switch element for passing through conducting is sent into power grid；
Step（B）, when photovoltaic module stops generating electricity, land the moment for the sun at the time of record at this time, and judge the current sun
Whether land；If the sun does not land, whether detection photovoltaic module breaks down；, will be grid-connected if the sun has landed
Inverter switchs to the state of voltage adjustable ac source function；
Step（C）, photovoltaic combining inverter send disconnect control command receive the disconnection to switch element, the switch element
After control command, the electrical connection between being netted between step-up power transformers and power grid is cut off, at this time, photovoltaic combining inverter enters
Holding state；
Step（D）, when photovoltaic module starts power generation, moment, photovoltaic combining inverter are risen for the sun at the time of record at this time
Enter starting state from holding state, and enter the state of voltage adjustable ac source function；
Step（E）, photovoltaic combining inverter pass through switch element obtain grid side voltage magnitude and waveform, photovoltaic module produce
Direct current energy be input to photovoltaic combining inverter in the case of, adjust its output voltage and start from scratch and be stepped up, and be sent into
Step-up power transformers are boosted, and the real-time voltage amplitude and ripple of step-up power transformers side are obtained by switch element
Shape, the voltage magnitude and waveform of real-time voltage amplitude and waveform, grid side until step-up power transformers side are consistent；
Step（F）, the voltage magnitude and waveform phase one of real-time voltage amplitude and waveform, grid side in step-up power transformers side
During cause, photovoltaic combining inverter sends conducting control command to switch element, and the switch element receives conducting control life
After order, the electrical connection between being netted between step-up power transformers and power grid is turned on, at this time, photovoltaic combining inverter, which enters, to be switched to often
Photovoltaic combining inverter state is advised, and is transferred to step（A）Into photovoltaic module normal power generation on daytime.
It is previously described for the complete method of energy-saving inversion boosting of photovoltaic generation, step（B）, judge the current sun whether
Landing, can be judged by manually observing judgement or lighting apparatus.
The beneficial effects of the invention are as follows：The present invention is used for the energy-saving inversion boosting complexes and method of photovoltaic generation,
Switch element is added, according to switch control command, the electrical connection being turned on or off between step-up power transformers and power grid,
Can be good at meeting that photovoltaic generation exits transformer at night, saving energy consumption simultaneously reduces electricity charge expense, while before power generation and
When put into transformer without reducing reliability and equipment life, be skillfully constructed, it is convenient to realize, has a good application prospect.
Brief description of the drawings
Fig. 1 is the system block diagram of the energy-saving inversion boosting complexes for photovoltaic generation of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, the energy-saving inversion boosting complexes for photovoltaic generation of the present invention, including it is grid-connected inverse
Become device 1, step-up power transformers 2 and switch element 3,
The photovoltaic combining inverter 1, for direct current energy to be changed into AC energy, and realizes voltage adjustable ac source
Function, sends unit 3 of the switch control command to switch；
The step-up power transformers 2, the AC energy boosting for photovoltaic combining inverter 1 to be exported are feeding electricity after high pressure
Net；
The switch element 3, it is electric between the step-up power transformers that are turned on or off 2 and power grid according to switch control command
Connection, and grid side, the voltage magnitude and waveform of step-up power transformers side are detected, feed back to photovoltaic combining inverter 1；
The direct current energy of the external photovoltaic generation of input terminal of the photovoltaic combining inverter 1, the photovoltaic combining inverter 1 it is defeated
Outlet is connected with the output terminal of step-up power transformers 2, and the output terminal of the step-up power transformers 2 passes through switch element 3
Power grid is accessed, the switch element 3 is also connected with photovoltaic combining inverter 1.
Preferably, the photovoltaic combining inverter 1 possesses outside existing conventional inverter operating mode, configures the logical of its inside
Believe that remote control module is transmitted with switch element 3 into row information；Meanwhile photovoltaic combining inverter 1 is remotely controlled mould by its internal communication
The voltage signal of 3 both sides of block read switch unit, and work according to variable voltage source scheme control inverter, progressively adjust output
Voltage magnitude, frequency and phase so that the voltage signal of 3 both sides of switch element, with the same phase of frequency, sends remote control combined floodgate and refer to amplitude
Make to switch element 3, after 3 closing success of switch element, photovoltaic combining inverter 1 switchs to conventional gird-connected inverter pattern work.
Preferably, the switch element 3, is adopted including power switch（Such as：Breaker, contactor or electric isolating switch）
Formed with supporting control module, control module, which contains voltage transformer, can detect power switch both sides voltage signal, send
Voltage signal receives the remote signal of the feedback of photovoltaic combining inverter 1 to photovoltaic combining inverter 1, and then driving power is opened
Pass is turned on or off, the electrical connection that power switch can safely be turned on or off between step-up power transformers 2 and power grid.
The complete method of energy-saving inversion boosting for photovoltaic generation of the present invention, comprises the following steps,
Step（A）, during photovoltaic module normal power generation on daytime, photovoltaic combining inverter 1 is conventional photovoltaic gird-connected inverter state, light
The direct current energy that volt component produces is input to photovoltaic combining inverter 1 and is converted to AC energy, and is sent into step-up power transformers 2
Boost, and by the AC energy after boosting, the switch element 3 for passing through conducting is sent into power grid；
Step（B）, when photovoltaic module stops generating electricity, land the moment for the sun at the time of record at this time, and judge the current sun
Whether land；If the sun does not land, whether detection photovoltaic module breaks down；, will be grid-connected if the sun has landed
Inverter 1 switchs to the state of voltage adjustable ac source function, here judge whether the current sun has landed, can be by artificial
Observation judges or lighting apparatus judges；
Step（C）, photovoltaic combining inverter 1 send disconnect control command receive this to switch element 3, the switch element 3
After disconnecting control command, the electrical connection between being netted between step-up power transformers 2 and power grid, at this time, photovoltaic grid-connected inversion are cut off
Device 1 enters holding state, so as to avoid the night no-load loss of step-up power transformers 2；
Step（D）, when photovoltaic module starts power generation, moment, photovoltaic combining inverter 1 are risen for the sun at the time of record at this time
Enter starting state from holding state, and enter the state of voltage adjustable ac source function；
Step（E）, photovoltaic combining inverter 1 is capable of providing exciting current to unloaded boosting electricity as voltage adjustable ac source
Power transformer 2 carries out excitation, and no-load transformer voltage is stepped up, until reach rated operational voltage level, avoiding problems
The excitation surge current problem for directly applying operating voltage in no-load transformer and producing, realizes the safety of the unloaded input of high-tension transformer
Reliable long life requirement, photovoltaic combining inverter 1 obtain the voltage magnitude and waveform of grid side, photovoltaic group by switch element 3
In the case that the direct current energy that part produces is input to photovoltaic combining inverter 1, adjusts its output voltage and start from scratch and be stepped up,
And be sent into step-up power transformers 2 and boost, and the real-time voltage width of step-up power transformers side is obtained by switch element 3
Value and waveform, the voltage magnitude and waveform phase one of real-time voltage amplitude and waveform, grid side until step-up power transformers side
Cause；
Step（F）, the voltage magnitude and waveform phase one of real-time voltage amplitude and waveform, grid side in step-up power transformers side
During cause, photovoltaic combining inverter 1 sends conducting control command to switch element 3, and the switch element 3 receives conducting control
After order, the electrical connection between being netted between step-up power transformers 2 and power grid is turned on, at this time, photovoltaic combining inverter 1, which enters, to be turned
For conventional photovoltaic gird-connected inverter state, and it is transferred to step（A）Into photovoltaic module normal power generation on daytime.
In conclusion the present invention is used for the energy-saving inversion boosting complexes and method of photovoltaic generation, switch is added
Unit, according to switch control command, the electrical connection being turned on or off between step-up power transformers and power grid, can be good at
Meet that photovoltaic generation exits transformer at night, save energy consumption and reduce electricity charge expense, while the input transformation in time before power generation
Device is skillfully constructed, it is convenient to realize, has a good application prospect without reducing reliability and equipment life.
Basic principle, the main features and advantages 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 original of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, 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 (8)
- A kind of 1. energy-saving inversion boosting complexes for photovoltaic generation, it is characterised in that：Including photovoltaic combining inverter （1）, step-up power transformers（2）And switch element（3）,The photovoltaic combining inverter（1）, for direct current energy to be changed into AC energy, and realize voltage adjustable ac source Function, send switch control command to switch unit（3）；The step-up power transformers（2）, for by photovoltaic combining inverter（1）The AC energy of output boosts to be sent after high pressure Enter power grid；The switch element（3）, according to switch control command, be turned on or off step-up power transformers（2）Between power grid Electrical connection, and grid side, the voltage magnitude and waveform of step-up power transformers side are detected, feed back to photovoltaic combining inverter （1）；The photovoltaic combining inverter（1）The external photovoltaic generation of input terminal direct current energy, the photovoltaic combining inverter（1） Output terminal and step-up power transformers（2）Output terminal be connected, the step-up power transformers（2）Output terminal by opening Close unit（3）Access power grid, the switch element（3）Also with photovoltaic combining inverter（1）It is connected.
- A kind of 2. energy-saving inversion boosting complexes for photovoltaic generation according to claim 1, it is characterised in that： The photovoltaic combining inverter（1）By configuring its internal communication remote control module and switch element（3）Transmitted into row information；It is logical Cross its internal communication remote control module read switch unit（3）The voltage signal of both sides, and according to variable voltage source scheme control Photovoltaic combining inverter（1）Work, progressively adjusts output voltage amplitude, frequency and phase so that switch element（3）The electricity of both sides Press signal with amplitude with the same phase of frequency, and send remote control reclosing command to switch element（3）, switch element（3）After closing success, light Lie prostrate gird-connected inverter（1）Switch to conventional gird-connected inverter pattern work.
- A kind of 3. energy-saving inversion boosting complexes for photovoltaic generation according to claim 1, it is characterised in that： The switch element（3）Including power switch and control module.
- A kind of 4. energy-saving inversion boosting complexes for photovoltaic generation according to claim 3, it is characterised in that： The control module contains voltage transformer, for detecting the voltage signal of power switch both sides, sends voltage signal to photovoltaic Gird-connected inverter（1）, and receive photovoltaic combining inverter（1）The remote signal of feedback, and then drive power switch leads on-off Open.
- A kind of 5. energy-saving inversion boosting complexes for photovoltaic generation according to claim 3, it is characterised in that： The power switch is breaker, contactor or electric isolating switch.
- A kind of 6. energy-saving inversion boosting complexes for photovoltaic generation according to claim 4, it is characterised in that： The power switch conduction or disconnection, control step-up power transformers（2）Electrical connection between power grid.
- A kind of 7. complete method of energy-saving inversion boosting for photovoltaic generation, it is characterised in that：Comprise the following steps,Step（A）, during photovoltaic module normal power generation on daytime, photovoltaic combining inverter（1）For conventional photovoltaic gird-connected inverter state, The direct current energy that photovoltaic module produces is input to photovoltaic combining inverter（1）AC energy is converted to, and is sent into step-up power change Depressor（2）Boost, and by the AC energy after boosting, pass through the switch element of conducting（3）It is sent into power grid；Step（B）, when photovoltaic module stops generating electricity, land the moment for the sun at the time of record at this time, and judge the current sun Whether land；If the sun does not land, whether detection photovoltaic module breaks down；, will be grid-connected if the sun has landed Inverter（1）Switch to the state of voltage adjustable ac source function；Step（C）, photovoltaic combining inverter（1）Send and disconnect control command to switch element（3）, the switch element（3）Connect After receiving the disconnection control command, step-up power transformers are cut off（2）Electrical connection between being netted between power grid, at this time, photovoltaic Gird-connected inverter（1）Into holding state；Step（D）, when photovoltaic module starts power generation, moment, photovoltaic combining inverter are risen for the sun at the time of record at this time （1）Enter starting state from holding state, and enter the state of voltage adjustable ac source function；Step（E）, photovoltaic combining inverter（1）Pass through switch element（3）Obtain the voltage magnitude and waveform of grid side, photovoltaic group The direct current energy that part produces is input to photovoltaic combining inverter（1）In the case of, adjust its output voltage and start from scratch and progressively rise Height, and it is sent into step-up power transformers（2）Boost, and pass through switch element（3）Obtain the reality of step-up power transformers side When voltage magnitude and waveform, the voltage magnitude of real-time voltage amplitude and waveform, grid side until step-up power transformers side and Waveform is consistent；Step（F）, the voltage magnitude and waveform phase one of real-time voltage amplitude and waveform, grid side in step-up power transformers side During cause, photovoltaic combining inverter（1）Conducting control command is sent to switch element（3）, the switch element（3）This is received to lead After logical control command, step-up power transformers are turned on（2）Electrical connection between being netted between power grid, at this time, photovoltaic grid-connected inversion Device（1）Into switching to conventional photovoltaic gird-connected inverter state, and it is transferred to step（A）Into photovoltaic module normal power generation on daytime.
- 8. the energy-saving inversion boosting complete method according to claim 7 for photovoltaic generation, it is characterised in that：Step （B）, judge whether the current sun has landed, can be judged by manually observing judgement or lighting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325410.3A CN107947236B (en) | 2017-12-13 | 2017-12-13 | Energy-saving inversion boosting complete device and method for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325410.3A CN107947236B (en) | 2017-12-13 | 2017-12-13 | Energy-saving inversion boosting complete device and method for photovoltaic power generation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107947236A true CN107947236A (en) | 2018-04-20 |
| CN107947236B CN107947236B (en) | 2024-06-21 |
Family
ID=61944012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711325410.3A Active CN107947236B (en) | 2017-12-13 | 2017-12-13 | Energy-saving inversion boosting complete device and method for photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107947236B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429654A (en) * | 2019-08-29 | 2019-11-08 | 浙江正泰新能源开发有限公司 | A kind of step-up transformer control method, system and the associated component of photovoltaic plant |
| CN110676941A (en) * | 2019-10-30 | 2020-01-10 | 中国华能集团清洁能源技术研究院有限公司 | A communication-based photovoltaic power station power-saving control device and method |
| WO2021197045A1 (en) * | 2020-03-30 | 2021-10-07 | 阳光电源股份有限公司 | Medium-voltage photovoltaic grid-connected inverter system and photovoltaic power generation system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621206A (en) * | 2009-08-13 | 2010-01-06 | 合肥阳光电源有限公司 | Combination method of photovoltaic combination inverter containing transformer at AC side |
| CN203415994U (en) * | 2013-07-30 | 2014-01-29 | 阳光电源股份有限公司 | Photovoltaic grid connected inversion system and photovoltaic power generation system equipped therewith |
| CN107386824A (en) * | 2017-09-01 | 2017-11-24 | 东峡大通（北京）管理咨询有限公司 | Smart lock, vehicle, solar panel power supply state detecting system and method |
| CN207705803U (en) * | 2017-12-13 | 2018-08-07 | 江苏蓝天光伏科技有限公司 | A kind of energy-saving inversion boosting complexes for photovoltaic generation |
-
2017
- 2017-12-13 CN CN201711325410.3A patent/CN107947236B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621206A (en) * | 2009-08-13 | 2010-01-06 | 合肥阳光电源有限公司 | Combination method of photovoltaic combination inverter containing transformer at AC side |
| CN203415994U (en) * | 2013-07-30 | 2014-01-29 | 阳光电源股份有限公司 | Photovoltaic grid connected inversion system and photovoltaic power generation system equipped therewith |
| CN107386824A (en) * | 2017-09-01 | 2017-11-24 | 东峡大通（北京）管理咨询有限公司 | Smart lock, vehicle, solar panel power supply state detecting system and method |
| CN207705803U (en) * | 2017-12-13 | 2018-08-07 | 江苏蓝天光伏科技有限公司 | A kind of energy-saving inversion boosting complexes for photovoltaic generation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429654A (en) * | 2019-08-29 | 2019-11-08 | 浙江正泰新能源开发有限公司 | A kind of step-up transformer control method, system and the associated component of photovoltaic plant |
| CN110676941A (en) * | 2019-10-30 | 2020-01-10 | 中国华能集团清洁能源技术研究院有限公司 | A communication-based photovoltaic power station power-saving control device and method |
| WO2021197045A1 (en) * | 2020-03-30 | 2021-10-07 | 阳光电源股份有限公司 | Medium-voltage photovoltaic grid-connected inverter system and photovoltaic power generation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107947236B (en) | 2024-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103647458B (en) | Frequency conversion system and carry out the method and apparatus of precharge to the high voltage converter in it | |
| CN101718804B (en) | Power supply system of partial discharge test used for extra-high voltage transformer | |
| CN201629677U (en) | Pre-charging circuit for high-voltage frequency converter using high-voltage technology | |
| CN108792859A (en) | The method and device and system of elevator device power supply are realized based on elevator power supply device | |
| CN107947236A (en) | A kind of energy-saving inversion boosting complexes and method for photovoltaic generation | |
| CN109342910A (en) | An all-electric partial discharge detection device and detection method | |
| CN108183527A (en) | A kind of control device and control method suitable for robot wireless charging system | |
| CN203377777U (en) | A soft start circuit of an auxiliary power supply | |
| CN203660492U (en) | Microcomputer comprehensive protection device having active/passive automatic switching function | |
| CN101202513A (en) | On-line separate AC/DC power supply with PFC circuit | |
| CN208908362U (en) | A kind of regional power grid excitation surge current elimination system | |
| CN207994636U (en) | A kind of energy-saving inversion boosting complexes for solar power generation | |
| CN202585083U (en) | Instrument transformer and iron resonance suppression circuit | |
| CN208561318U (en) | The device and system of elevator device power supply are realized based on elevator power supply device | |
| CN203839952U (en) | Low-voltage intelligent voltage regulator | |
| CN207705803U (en) | A kind of energy-saving inversion boosting complexes for photovoltaic generation | |
| CN105564622A (en) | Ship electric energy distribution control device based on contacts and control method | |
| CN110224432A (en) | A kind of box-type substation and its microgrid system control method | |
| CN202094605U (en) | Pre-excitation device for power transformer | |
| CN214506639U (en) | Low-voltage emergency power supply device using electric automobile as power supply | |
| CN212586509U (en) | Energy feedback type load testing system | |
| CN207705784U (en) | A kind of energy saver for transformer in solar power plant | |
| CN107887929A (en) | A kind of energy-saving inversion boosting complexes and method for solar power generation | |
| CN205160399U (en) | A power supply unit for elevator band -type brake coil | |
| CN207753619U (en) | A kind of three-phase transformer soft starting circuit |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240716 Address after: 536000 room 0401-401, building 1, Suifeng Jinwan, No. 299, Sichuan Road, Beihai City, Guangxi Zhuang Autonomous Region Patentee after: Beihai Lantian Energy Construction Engineering Co.,Ltd. Country or region after: China Address before: 211100 No. 12, Mazhou East Road, Mau Ling Street, Jiangning District, Nanjing, Jiangsu Patentee before: JIANGSU BLUE SKY PHOTOVOLTAIC TECHNOLOGY Co.,Ltd. Country or region before: China |