CN103872754A - Photovoltaic solar power supplying control method and system - Google Patents
Photovoltaic solar power supplying control method and system Download PDFInfo
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- CN103872754A CN103872754A CN201210543867.2A CN201210543867A CN103872754A CN 103872754 A CN103872754 A CN 103872754A CN 201210543867 A CN201210543867 A CN 201210543867A CN 103872754 A CN103872754 A CN 103872754A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention discloses a photovoltaic solar power supplying control method and system. The photovoltaic solar power supplying control method includes the following steps that: photovoltaic voltage provided by photovoltaic equipment, which is acquired by a first sampling unit, is extracted; whether the photovoltaic voltage meets requirements is judged; if the photovoltaic voltage meets the requirements, the photovoltaic equipment is utilized to supply power for a load; if the photovoltaic voltage does not meet the requirements, the discharge voltage of a storage battery, which is acquired by a second sampling unit, is extracted; whether the discharge voltage of the storage battery meets the requirements is judged; if the discharge voltage of the storage battery meets the requirements, the storage battery utilized to supply power for the load; and if the discharge voltage of the storage battery does not meet the requirements, commercial power is utilized to supply power for the load. According to the photovoltaic solar power supplying control method and system of the invention, seamless switching among solar energy provided by the photovoltaic equipment, electric energy provided by the storage battery and electric energy provided by the commercial power can be realized, and therefore, uninterrupted power supply for the load can be ensured, and the utilization rate of the solar photovoltaic equipment can be improved, and at the same time, construction cost can be reduced, and fault rate can be reduced.
Description
Technical field
The present invention relates to power technique fields, particularly relate to a kind of photovoltaic solar method for controlling power supply and system.
Background technology
Green energy resource exploitation is at present developed rapidly, and solar energy photovoltaic system has obtained application more and more widely.In existing solar powered technology, employing be electric energy switch technology, the DC inverter solar energy being sent become alternating current use.The defect of this mode is, inversion process has consumed electric energy, and the use of inverter has simultaneously increased construction cost, improved operation troubles rate.
If the direct current directly photovoltaic apparatus being produced offers load, owing to being subject to the impact of sunlight conditions, there is voltage fluctuation in the electric energy that photovoltaic apparatus produces, can not meet the instructions for use of load completely.Therefore, in order to use better photovoltaic apparatus, need to solve photovoltaic apparatus produce direct current energy and civil power between seamless switching problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of photovoltaic solar method for controlling power supply and system.Seamless switching between the electric energy that the solar energy providing at photovoltaic apparatus by realization and storage battery and civil power provide, thereby ensure the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduced construction cost simultaneously, reduce operation troubles rate.
According to an aspect of the present invention, provide a kind of photovoltaic solar method for controlling power supply, comprising:
Extract the photovoltaic voltage that the photovoltaic apparatus of the first sampling unit collection provides;
Judge whether photovoltaic voltage meets the demands;
If photovoltaic voltage meets the demands, utilize photovoltaic apparatus to power for load;
If photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers;
Whether the discharge voltage that judges storage battery meets the demands;
If the discharge voltage of storage battery meets the demands, utilize storage battery to power for load;
If the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.
Preferably, after utilizing the step that photovoltaic apparatus powers for load, also comprise:
Utilize photovoltaic apparatus to charge in batteries;
The step of the photovoltaic voltage that then photovoltaic apparatus of execution extraction the first sampling unit collection provides.
Preferably, the step of utilizing storage battery to power for load comprises:
Utilize storage battery to power for load;
Whether inquire about the battery discharging voltage of the second sampling unit collection lower than scheduled voltage;
If the discharge voltage of storage battery, lower than scheduled voltage, is carried out the step of utilizing civil power to power for load;
If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, carry out the step of utilizing photovoltaic apparatus to power for load;
If photovoltaic voltage is discontented with sufficient requirement, carry out battery discharging voltage that inquiry the second sampling unit gathers whether lower than the step of scheduled voltage.
Preferably, the step of utilizing civil power to power for load comprises:
Utilize civil power to power for load;
Utilize civil power to charge in batteries;
Whether inquire about the line voltage of the 3rd sampling unit collection lower than scheduled voltage;
If line voltage, lower than scheduled voltage, is carried out the step of utilizing storage battery to power for load;
If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, carry out the step of utilizing photovoltaic apparatus to power for load;
If photovoltaic voltage is discontented with sufficient requirement, carry out line voltage that inquiry the 3rd sampling unit gathers whether lower than the step of scheduled voltage.
According to a further aspect in the invention, provide a kind of photovoltaic solar electric power supply control system, comprising:
The first sampling unit, the photovoltaic voltage providing for gathering photovoltaic apparatus;
The second sampling unit, for gathering the discharge voltage of storage battery;
Supply control unit, the photovoltaic voltage providing for extracting the photovoltaic apparatus of the first sampling unit collection, judges whether photovoltaic voltage meets the demands, if when photovoltaic voltage meets the demands, utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers, judge whether the discharge voltage of storage battery meets the demands; If the discharge voltage of storage battery meets the demands, utilize storage battery to power for load; If the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.
Preferably, supply control unit also, for after utilizing photovoltaic apparatus to power for load, utilizes photovoltaic apparatus to charge in batteries, the operation of the photovoltaic voltage that then photovoltaic apparatus of execution extraction the first sampling unit collection provides.
Preferably, supply control unit specifically utilizes storage battery to power for load, and whether the battery discharging voltage that inquiry the second sampling unit gathers is lower than scheduled voltage; If the discharge voltage of storage battery, lower than scheduled voltage, is carried out the operation that utilizes civil power to power for load; If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, carry out the operation that utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, carry out battery discharging voltage that inquiry the second sampling unit gathers whether lower than the operation of scheduled voltage.
Preferably, system also comprises the 3rd sampling unit, for gathering line voltage;
Supply control unit specifically utilizes civil power to power for load, utilizes civil power to charge in batteries, and whether the line voltage that inquiry the 3rd sampling unit gathers is lower than scheduled voltage; If line voltage, lower than scheduled voltage, is carried out the operation that utilizes storage battery to power for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, carry out the operation that utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, carry out line voltage that inquiry the 3rd sampling unit gathers whether lower than the operation of scheduled voltage.
The photovoltaic voltage that the present invention provides by extracting the photovoltaic apparatus of the first sampling unit collection, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, utilize photovoltaic apparatus to power for load, if photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers, whether the discharge voltage that judges storage battery meets the demands, if the discharge voltage of storage battery meets the demands, utilize storage battery to power for load, if the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.Seamless switching between the electric energy that the solar energy providing at photovoltaic apparatus by realization and storage battery and civil power provide, thereby ensure the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduced construction cost simultaneously, reduce operation troubles rate.
Brief description of the drawings
Fig. 1 is the schematic diagram of an embodiment of method for controlling power supply of the present invention.
Fig. 2 is the schematic diagram of another embodiment of method for controlling power supply of the present invention.
Fig. 3 is the schematic diagram of an embodiment of electric power supply control system of the present invention.
Fig. 4 is the schematic diagram of an embodiment of electric power supply control system of the present invention.
Fig. 5 is the structural representation of electric power supply control system of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.
Fig. 1 is the schematic diagram of an embodiment of method for controlling power supply of the present invention.As shown in Figure 1, the method for controlling power supply step of the present embodiment is as follows:
Step 101, the photovoltaic voltage that the photovoltaic apparatus of extraction the first sampling unit collection provides.
Step 102, judges whether photovoltaic voltage meets the demands.
Step 103, if photovoltaic voltage meets the demands, utilizes photovoltaic apparatus to power for load.
Step 104, if the battery discharging voltage that the second sampling unit gathers is extracted in the discontented sufficient requirement of photovoltaic voltage.
Step 105, judges whether the discharge voltage of storage battery meets the demands.
Step 106, if the discharge voltage of storage battery meets the demands, utilizes storage battery to power for load.
Step 107, if the discharge voltage of storage battery does not meet the demands, utilizes civil power to power for load.
The method for controlling power supply providing based on the above embodiment of the present invention, the photovoltaic voltage providing by extracting the photovoltaic apparatus of the first sampling unit collection, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, utilize photovoltaic apparatus to power for load, if photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers, whether the discharge voltage that judges storage battery meets the demands, if the discharge voltage of storage battery meets the demands, utilize storage battery to power for load, if the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.Seamless switching between the electric energy that the solar energy providing at photovoltaic apparatus by realization and storage battery and civil power provide, thereby ensure the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduced construction cost simultaneously, reduce operation troubles rate.
Fig. 2 is the schematic diagram of another embodiment of method for controlling power supply of the present invention.Wherein:
Utilize photovoltaic apparatus to power for load, system now enters solar powered state.By returning to step 201, can realize the cycle detection to photovoltaic voltage, this is conducive to realize the seamless switching of supply power mode.
Preferably, in the time utilizing photovoltaic apparatus to power to load, can also charge to storage battery.Along with the carrying out of charging, charging current constantly reduces, and when charging current is during lower than predetermined value, has charged, and stops the charging to storage battery.Thereby can ensure to there is electric energy in storage battery, be conducive to realize the seamless switching of supply power mode.
System now enters battery state of charge.
Enter after battery state of charge, whether the discharge voltage that system also detects storage battery meets the demands, if do not meet the demands, now system can be switched to mains-supplied state.In battery state of charge, system also can detect the situation of photovoltaic voltage, if photovoltaic voltage meets the demands, returns to solar charging electricity condition.This is conducive to realize the seamless switching of supply power mode.
Now system is switched to mains-supplied state.
Along with the carrying out of charging, charging current constantly reduces, and when charging current is during lower than predetermined value, has charged, and stops the charging to storage battery.Thereby can ensure to there is electric energy in storage battery, be conducive to realize the seamless switching of supply power mode.
If line voltage is lower than scheduled voltage, for example mains failure, can not normally work due to photovoltaic apparatus now, therefore needs to be switched to battery state of charge, to realize the seamless switching of supply power mode.
In mains-supplied state, system also can detect the situation of photovoltaic voltage, if photovoltaic voltage meets the demands, returns to solar charging electricity condition.This is conducive to realize the seamless switching of supply power mode, also contributes to improve the service efficiency of photovoltaic apparatus.
Fig. 3 is the schematic diagram of an embodiment of electric power supply control system of the present invention.As shown in Figure 3, electric power supply control system comprises:
The first sampling unit 301, the photovoltaic voltage providing for gathering photovoltaic apparatus.
The second sampling unit 302, for gathering the discharge voltage of storage battery.
The electric power supply control system providing based on the above embodiment of the present invention, the photovoltaic voltage providing by extracting the photovoltaic apparatus of the first sampling unit collection, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, utilize photovoltaic apparatus to power for load, if photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers, whether the discharge voltage that judges storage battery meets the demands, if the discharge voltage of storage battery meets the demands, utilize storage battery to power for load, if the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.Seamless switching between the electric energy that the solar energy providing at photovoltaic apparatus by realization and storage battery and civil power provide, thereby ensure the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduced construction cost simultaneously, reduce operation troubles rate.
Preferably, supply control unit 303 also, for after utilizing photovoltaic apparatus to power for load, utilizes photovoltaic apparatus to charge in batteries, the operation of the photovoltaic voltage that then photovoltaic apparatus of execution extraction the first sampling unit collection provides.
Preferably, supply control unit 303 specifically utilizes storage battery to power for load, and whether the battery discharging voltage that inquiry the second sampling unit gathers is lower than scheduled voltage; If the discharge voltage of storage battery, lower than scheduled voltage, is carried out the operation that utilizes civil power to power for load; If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, carry out the operation that utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, carry out battery discharging voltage that inquiry the second sampling unit gathers whether lower than the operation of scheduled voltage.
Fig. 4 is the schematic diagram of another embodiment of electric power supply control system of the present invention.Compared with embodiment illustrated in fig. 3, in the embodiment shown in fig. 4, electric power supply control system also comprises the 3rd sampling unit 401, for gathering line voltage.
Preferably, supply control unit 303 specifically utilizes civil power to power for load, utilizes civil power to charge in batteries, and whether the line voltage that inquiry the 3rd sampling unit gathers is lower than scheduled voltage; If line voltage, lower than scheduled voltage, is carried out the operation that utilizes storage battery to power for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, carry out the operation that utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, carry out line voltage that inquiry the 3rd sampling unit gathers whether lower than the operation of scheduled voltage.
Fig. 5 is the structural representation of electric power supply control system of the present invention.As shown in Figure 5, system main circuit is composed in parallel by photovoltaic module, half control rectifier bridge, batteries.In the time that sunlight is normal, now J2 closure, J1 and J3 disconnect, J1 ' closure, and civil power is connecting system not, and photovoltaic system is on one side to load LED mono-class load supplying, on one side to storage battery boost charge.System is in solar energy floating charge operating state.
In the time that sunlight is undesired, when photovoltaic voltage can not meet load and uses, storage battery is in discharge condition, when battery discharging voltage is during lower than set point, and J1 and J3 closure, civil power access, half control rectifier bridge is exported direct current to load supplying; Simultaneously J1 ' disconnects, and charge in batteries loop seals in reactor restriction charging current, and along with charging is constantly carried out, charging current constantly reduces, and when charging current is during lower than definite value, J2 disconnects, and storage battery logs off, and system is in mains-supplied state.
In the time of mains failure and solar energy photovoltaic system cisco unity malfunction, storage battery accesses automatically, keeps load end power supply uninterrupted.
PLC(Programmable Logic Controller, Programmable Logic Controller) controller is according to predetermined control command, system controlled.
Preferably, photovoltaic module adopts 270V configuration, and its power configuration adds batteries floating charge power according to bearing power, the 10 hour rate charging currents of desirable 1～1.5 times.
Preferably, half-controlled bridge configuration is selected rated current standard according to 3～3.5 times to load current, and rated voltage is selected 600～1000V.Trigger power and get as far as possible higher device.
Preferably, batteries is selected valve-control type lead-acid accumulator group or ferric phosphate lithium cell group.Analysing valve control type lead-acid accumulator battery group is as outdoor in being positioned over, and should select the high temperature resistant battery of colloid, whole assembly put optional monomer 12V, 20 or monomer 6V, 40 or monomer 2V, 120; Optional 78 combination of monomers of ferric phosphate lithium cell group.
Preferably, the optional universal product of Programmable Logic Controller PLC, I/O selects 24 points, adopts EEPROM save routine, and supply standard is selected alternating current 220V supply power mode, because of its compatible 240V direct current, can directly get batteries power supply.
Photovoltaic new forms of energy of the present invention and civil power switched system, can improve solar energy utilization ratio more than 10%, because it is simple in structure, compared with common switched system, reduces construction cost and maintenance cost more than 10%.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the present invention's design to be suitable for the various embodiment with various amendments of special-purpose.
Claims (8)
1. a photovoltaic solar method for controlling power supply, is characterized in that, comprising:
Extract the photovoltaic voltage that the photovoltaic apparatus of the first sampling unit collection provides;
Judge whether photovoltaic voltage meets the demands;
If photovoltaic voltage meets the demands, utilize photovoltaic apparatus to power for load;
If photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers;
Whether the discharge voltage that judges storage battery meets the demands;
If the discharge voltage of storage battery meets the demands, utilize storage battery to power for load;
If the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.
2. method according to claim 1, is characterized in that:
After utilizing the step that photovoltaic apparatus powers for load, also comprise:
Utilize photovoltaic apparatus to charge in batteries;
The step of the photovoltaic voltage that then photovoltaic apparatus of execution extraction the first sampling unit collection provides.
3. method according to claim 1 and 2, is characterized in that:
The step of utilizing storage battery to power for load comprises:
Utilize storage battery to power for load;
Whether inquire about the battery discharging voltage of the second sampling unit collection lower than scheduled voltage;
If the discharge voltage of storage battery, lower than scheduled voltage, is carried out the step of utilizing civil power to power for load;
If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, carry out the step of utilizing photovoltaic apparatus to power for load;
If photovoltaic voltage is discontented with sufficient requirement, carry out battery discharging voltage that inquiry the second sampling unit gathers whether lower than the step of scheduled voltage.
4. method according to claim 3, is characterized in that:
The step of utilizing civil power to power for load comprises:
Utilize civil power to power for load;
Utilize civil power to charge in batteries;
Whether inquire about the line voltage of the 3rd sampling unit collection lower than scheduled voltage;
If line voltage, lower than scheduled voltage, is carried out the step of utilizing storage battery to power for load;
If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, carry out the step of utilizing photovoltaic apparatus to power for load;
If photovoltaic voltage is discontented with sufficient requirement, carry out line voltage that inquiry the 3rd sampling unit gathers whether lower than the step of scheduled voltage.
5. a photovoltaic solar electric power supply control system, is characterized in that, comprising:
The first sampling unit, the photovoltaic voltage providing for gathering photovoltaic apparatus;
The second sampling unit, for gathering the discharge voltage of storage battery;
Supply control unit, the photovoltaic voltage providing for extracting the photovoltaic apparatus of the first sampling unit collection, judges whether photovoltaic voltage meets the demands, if when photovoltaic voltage meets the demands, utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, extract the battery discharging voltage that the second sampling unit gathers, judge whether the discharge voltage of storage battery meets the demands; If the discharge voltage of storage battery meets the demands, utilize storage battery to power for load; If the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load.
6. system according to claim 5, is characterized in that:
Supply control unit also, for after utilizing photovoltaic apparatus to power for load, utilizes photovoltaic apparatus to charge in batteries, the operation of the photovoltaic voltage that then photovoltaic apparatus of execution extraction the first sampling unit collection provides.
7. according to the system described in claim 5 or 6, it is characterized in that:
Supply control unit specifically utilizes storage battery to power for load, and whether the battery discharging voltage that inquiry the second sampling unit gathers is lower than scheduled voltage; If the discharge voltage of storage battery, lower than scheduled voltage, is carried out the operation that utilizes civil power to power for load; If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, carry out the operation that utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, carry out battery discharging voltage that inquiry the second sampling unit gathers whether lower than the operation of scheduled voltage.
8. system according to claim 7, is characterized in that:
System also comprises the 3rd sampling unit, for gathering line voltage;
Supply control unit specifically utilizes civil power to power for load, utilizes civil power to charge in batteries, and whether the line voltage that inquiry the 3rd sampling unit gathers is lower than scheduled voltage; If line voltage, lower than scheduled voltage, is carried out the operation that utilizes storage battery to power for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiry the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, carry out the operation that utilizes photovoltaic apparatus to power for load; If photovoltaic voltage is discontented with sufficient requirement, carry out line voltage that inquiry the 3rd sampling unit gathers whether lower than the operation of scheduled voltage.
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| CN201210543867.2A CN103872754B (en) | 2012-12-14 | 2012-12-14 | Photovoltaic solar method for controlling power supply and system |
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| CN107276210A (en) * | 2017-06-17 | 2017-10-20 | 安徽南国机电科技发展有限公司 | A kind of economizing type energy compensating system |
| CN108282022A (en) * | 2018-01-08 | 2018-07-13 | 南宁市浩发科技有限公司 | A kind of solar LED advertisement board system and its control method |
| CN112865278A (en) * | 2020-12-31 | 2021-05-28 | 航天柏克(广东)科技有限公司 | Photovoltaic system control method, photovoltaic system control system and computer-readable storage medium |
| CN117595755A (en) * | 2024-01-18 | 2024-02-23 | 江苏索酷能源科技有限公司 | Solar power generation system and working method |
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| CN103872754B (en) | 2016-04-13 |
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