CN103872754B - Photovoltaic solar method for controlling power supply and system - Google Patents
Photovoltaic solar method for controlling power supply and system Download PDFInfo
- Publication number
- CN103872754B CN103872754B CN201210543867.2A CN201210543867A CN103872754B CN 103872754 B CN103872754 B CN 103872754B CN 201210543867 A CN201210543867 A CN 201210543867A CN 103872754 B CN103872754 B CN 103872754B
- Authority
- CN
- China
- Prior art keywords
- voltage
- photovoltaic
- demands
- load
- storage battery
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of photovoltaic solar method for controlling power supply and system.Wherein in photovoltaic solar method for controlling power supply, the photovoltaic voltage that the photovoltaic apparatus extracting the first sampling unit collection provides, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, photovoltaic apparatus is then utilized to power for load, if photovoltaic voltage does not meet the demands, then 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, storage battery is then utilized to power for load, if the discharge voltage of storage battery does not meet the demands, civil power is then utilized to power for load.By realizing the seamless switching between electric energy that the solar energy that provides at photovoltaic apparatus and storage battery and civil power provides, thus ensure that the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduce construction cost simultaneously, reduce operation troubles rate.
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
Current green energy resource exploitation is developed rapidly, and solar energy photovoltaic system obtains application more and more widely.In existing solar powered technology, employing be electric energy switch technology, namely become alternating current to use the DC inverter that solar energy sends.The defect of this mode is, reversals consumes electric energy, and the use of inverter simultaneously adds construction cost, improves operation troubles rate.
If directly the direct current that photovoltaic apparatus produces is supplied to 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 photovoltaic apparatus better, need to solve the seamless switching problem between the direct current energy of photovoltaic apparatus generation and civil power.
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.By realizing the seamless switching between electric energy that the solar energy that provides at photovoltaic apparatus and storage battery and civil power provides, thus ensure that the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduce construction cost simultaneously, reduce operation troubles rate.
According to an aspect of the present invention, a kind of photovoltaic solar method for controlling power supply is provided, comprises:
The photovoltaic voltage that the photovoltaic apparatus extracting the first sampling unit collection provides;
Judge whether photovoltaic voltage meets the demands;
If photovoltaic voltage meets the demands, then photovoltaic apparatus is utilized to power for load;
If photovoltaic voltage does not meet the demands, then 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, then storage battery is utilized to power for load;
If the discharge voltage of storage battery does not meet the demands, then civil power is utilized to power for load.
Preferably, utilize photovoltaic apparatus for after load carries out the step of powering, also comprise:
Utilize photovoltaic apparatus to charge in batteries;
The step of the photovoltaic voltage that the photovoltaic apparatus then performing the collection of extraction first sampling unit provides.
Preferably, the step utilizing storage battery to carry out powering for load comprises:
Storage battery is utilized 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 is lower than scheduled voltage, then performs and utilize civil power to carry out the step of powering for load;
If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the step of powering for load;
If photovoltaic voltage does not meet the demands, then perform battery discharging voltage that inquiry second sampling unit gathers whether lower than the step of scheduled voltage.
Preferably, the step utilizing civil power to carry out powering for load comprises:
Civil power is utilized 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 is lower than scheduled voltage, then performs and utilize storage battery to carry out the step of powering for load;
If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the step of powering for load;
If photovoltaic voltage does not meet the demands, then perform 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, a kind of photovoltaic solar electric power supply control system is provided, comprises:
First sampling unit, for gathering the photovoltaic voltage that photovoltaic apparatus provides;
Second sampling unit, for gathering the discharge voltage of storage battery;
Supply control unit, the photovoltaic voltage that the photovoltaic apparatus for extracting the first sampling unit collection provides, judges whether photovoltaic voltage meets the demands, if when photovoltaic voltage meets the demands, utilizes photovoltaic apparatus to power for load; If photovoltaic voltage does not meet the demands, 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, storage battery is utilized to power for load; If the discharge voltage of storage battery does not meet the demands, civil power is utilized to power for load.
Preferably, supply control unit also for utilizing photovoltaic apparatus for after load powers, utilizes photovoltaic apparatus to charge in batteries, the operation of the photovoltaic voltage that the photovoltaic apparatus then performing the collection of extraction first sampling unit provides.
Preferably, supply control unit specifically utilizes storage battery to power for load, whether inquires about battery discharging voltage that the second sampling unit gathers lower than scheduled voltage; If the discharge voltage of storage battery is lower than scheduled voltage, then performs and utilize civil power to carry out the operation of powering for load; If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the operation of powering for load; If photovoltaic voltage does not meet the demands, then perform battery discharging voltage that inquiry 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 is lower than scheduled voltage, then performs and utilize storage battery to carry out the operation of powering for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the operation of powering for load; If photovoltaic voltage does not meet the demands, then perform line voltage that inquiry the 3rd sampling unit gathers whether lower than the operation of scheduled voltage.
The photovoltaic voltage that the present invention is provided by the photovoltaic apparatus of extraction first sampling unit collection, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, photovoltaic apparatus is then utilized to power for load, if photovoltaic voltage does not meet the demands, then 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, storage battery is then utilized to power for load, if the discharge voltage of storage battery does not meet the demands, then civil power is utilized to power for load.By realizing the seamless switching between electric energy that the solar energy that provides at photovoltaic apparatus and storage battery and civil power provides, thus ensure that the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduce construction cost simultaneously, reduce operation troubles rate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a method for controlling power supply of the present invention embodiment.
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 electric power supply control system of the present invention embodiment.
Fig. 4 is the schematic diagram of an electric power supply control system of the present invention embodiment.
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 a method for controlling power supply of the present invention embodiment.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 extracting the first sampling unit collection provides.
Step 102, judges whether photovoltaic voltage meets the demands.
Step 103, if photovoltaic voltage meets the demands, then utilizes photovoltaic apparatus to power for load.
Step 104, if photovoltaic voltage does not meet the demands, then extracts the battery discharging voltage that the second sampling unit gathers.
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, then utilizes storage battery to power for load.
Step 107, if the discharge voltage of storage battery does not meet the demands, then utilizes civil power to power for load.
Based on the method for controlling power supply that the above embodiment of the present invention provides, by the photovoltaic voltage that the photovoltaic apparatus extracting the first sampling unit collection provides, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, photovoltaic apparatus is then utilized to power for load, if photovoltaic voltage does not meet the demands, then 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, storage battery is then utilized to power for load, if the discharge voltage of storage battery does not meet the demands, civil power is then utilized to power for load.By realizing the seamless switching between electric energy that the solar energy that provides at photovoltaic apparatus and storage battery and civil power provides, thus ensure that the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduce 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:
Step 201, the photovoltaic voltage that the photovoltaic apparatus extracting the first sampling unit collection provides.
Step 202, judges whether photovoltaic voltage meets the demands.If photovoltaic voltage meets the demands, perform step 203, otherwise perform step 204.
Step 203, utilizes photovoltaic apparatus to power for load.Then step 201 is returned.
Utilize photovoltaic apparatus to power for load, system now enters solar powered state.By returning step 201, can realize the cycle detection to photovoltaic voltage, this is conducive to the seamless switching realizing supply power mode.
Preferably, when 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 lower than predetermined value, i.e. charging complete, then stop the charging to storage battery.Thus can ensure, in storage battery, there is electric energy, be conducive to the seamless switching realizing supply power mode.
Step 204, if photovoltaic voltage does not meet the demands, then extracts the battery discharging voltage that the second sampling unit gathers.
Step 205, judges whether the discharge voltage of storage battery meets the demands.If the discharge voltage of storage battery meets the demands, perform step 206, otherwise perform step 209.
Step 206, utilizes storage battery to power for load.
System now enters battery state of charge.
Whether step 207, inquire about the battery discharging voltage of the second sampling unit collection lower than scheduled voltage.If the discharge voltage of storage battery is greater than or equal to scheduled voltage, perform step 208, otherwise perform step 209.
Step 208, if the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands.If photovoltaic voltage meets the demands, then perform step 203; If photovoltaic voltage does not meet the demands, then perform step 207.
After entering 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, then returns solar charging electricity condition.This is conducive to the seamless switching realizing supply power mode.
Step 209, utilizes civil power to power for load.
Now systematic evaluation is to mains-supplied state.
Step 210, utilizes civil power to charge in batteries.
Along with the carrying out of charging, charging current constantly reduces, and when charging current is lower than predetermined value, i.e. charging complete, then stop the charging to storage battery.Thus can ensure, in storage battery, there is electric energy, be conducive to the seamless switching realizing supply power mode.
Step 211, whether the line voltage that inquiry the 3rd sampling unit gathers is lower than scheduled voltage.If line voltage is lower than scheduled voltage, then perform step 206.If line voltage is greater than or equal to scheduled voltage, perform step 212.
If line voltage is lower than scheduled voltage, such as mains failure, because now photovoltaic apparatus can not normally work, therefore needs to be switched to battery state of charge, to realize the seamless switching of supply power mode.
Step 212, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands.If photovoltaic voltage meets the demands, then perform step 203; If photovoltaic voltage does not meet the demands, then perform step 211.
In mains-supplied state, system also can detect the situation of photovoltaic voltage, if photovoltaic voltage meets the demands, then returns solar charging electricity condition.This is conducive to the seamless switching realizing supply power mode, also contributes to the service efficiency improving photovoltaic apparatus.
Fig. 3 is the schematic diagram of an electric power supply control system of the present invention embodiment.As shown in Figure 3, electric power supply control system comprises:
First sampling unit 301, for gathering the photovoltaic voltage that photovoltaic apparatus provides.
Second sampling unit 302, for gathering the discharge voltage of storage battery.
Supply control unit 303, the photovoltaic voltage that the photovoltaic apparatus for extracting the first sampling unit collection provides, judges whether photovoltaic voltage meets the demands, if when photovoltaic voltage meets the demands, utilizes photovoltaic apparatus to power for load; If photovoltaic voltage does not meet the demands, 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, storage battery is utilized to power for load; If the discharge voltage of storage battery does not meet the demands, civil power is utilized to power for load.
Based on the electric power supply control system that the above embodiment of the present invention provides, by the photovoltaic voltage that the photovoltaic apparatus extracting the first sampling unit collection provides, judge whether photovoltaic voltage meets the demands, if photovoltaic voltage meets the demands, photovoltaic apparatus is then utilized to power for load, if photovoltaic voltage does not meet the demands, then 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, storage battery is then utilized to power for load, if the discharge voltage of storage battery does not meet the demands, civil power is then utilized to power for load.By realizing the seamless switching between electric energy that the solar energy that provides at photovoltaic apparatus and storage battery and civil power provides, thus ensure that the uninterrupted power supply to load, improve the utilance of photovoltaic equipment, reduce construction cost simultaneously, reduce operation troubles rate.
Preferably, supply control unit 303 also for utilizing photovoltaic apparatus for after load powers, utilizes photovoltaic apparatus to charge in batteries, the operation of the photovoltaic voltage that the photovoltaic apparatus then performing the collection of extraction first sampling unit provides.
Preferably, supply control unit 303 specifically utilizes storage battery to power for load, whether inquires about battery discharging voltage that the second sampling unit gathers lower than scheduled voltage; If the discharge voltage of storage battery is lower than scheduled voltage, then performs and utilize civil power to carry out the operation of powering for load; If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the operation of powering for load; If photovoltaic voltage does not meet the demands, then perform battery discharging voltage that inquiry 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 is lower than scheduled voltage, then performs and utilize storage battery to carry out the operation of powering for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the operation of powering for load; If photovoltaic voltage does not meet the demands, then perform 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.When sunlight is normal, now closed, J1 and the J3 of J2 disconnects, and J1 ' is closed, and civil power is connecting system not, photovoltaic system to load LED mono-class load supplying, while to storage battery boost charge.System is in solar energy Float duty.
When sunlight is abnormal, when photovoltaic voltage can not meet load use, storage battery is in discharge condition, and when battery discharging voltage is lower than set point, J1 and J3 closes, and civil power accesses, and half control rectifier bridge exports direct current to load supplying; J1 ' disconnects simultaneously, 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 lower than definite value, J2 disconnects, and storage battery logs off, and system is in mains-supplied state.
When mains failure and solar energy photovoltaic system cisco unity malfunction time, storage battery accesses automatically, keep load end power uninterruptedly.
PLC(ProgrammableLogicController, Programmable Logic Controller) controller according to predetermined control command, system is 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 selects rated current standard according to 3 ~ 3.5 times to load current, and rated voltage selects 600 ~ 1000V.Trigger power gets higher device as far as possible.
Preferably, batteries selects valve-control type lead-acid accumulator group or ferric phosphate lithium cell group.Analysing valve control type lead-acid accumulator battery group, as being positioned over outdoor, should select the high temperature resistant battery of colloid, the optional monomer 12V of whole group configuration, 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 controller PLC, I/O selects 24 points, and adopt EEPROM save routine, supply standard selects alternating current 220V supply power mode, because of its compatible 240V direct current, can directly get batteries and power.
Photovoltaic new energy of the present invention and civil power switched system, can improve solar energy utilization ratio more than 10%, because its structure is simple, compared with common switched system, reduces construction cost and maintenance cost more than 10%.
Description of the invention provides in order to 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 in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (6)
1. a photovoltaic solar method for controlling power supply, is characterized in that, comprising:
The photovoltaic voltage that the photovoltaic apparatus extracting the first sampling unit collection provides;
Judge whether photovoltaic voltage meets the demands;
If photovoltaic voltage meets the demands, then photovoltaic apparatus is utilized to power for load;
If photovoltaic voltage does not meet the demands, then 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, then storage battery is utilized to power for load;
If the discharge voltage of storage battery does not meet the demands, then civil power is utilized to power for load;
Wherein, the step utilizing civil power to carry out powering 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 is lower than scheduled voltage, then performs and utilize storage battery to carry out the step of powering for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the step of powering for load; If photovoltaic voltage does not meet the demands, then perform line voltage that inquiry the 3rd sampling unit gathers whether lower than the step of scheduled voltage.
2. method according to claim 1, is characterized in that:
Utilize photovoltaic apparatus for after load carries out the step of powering, also comprise:
Utilize photovoltaic apparatus to charge in batteries;
The step of the photovoltaic voltage that the photovoltaic apparatus then performing the collection of extraction first sampling unit provides.
3. method according to claim 1 and 2, is characterized in that:
The step utilizing storage battery to carry out powering for load comprises:
Storage battery is utilized 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 is lower than scheduled voltage, then performs and utilize civil power to carry out the step of powering for load;
If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands;
If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the step of powering for load;
If photovoltaic voltage does not meet the demands, then perform battery discharging voltage that inquiry second sampling unit gathers whether lower than the step of scheduled voltage.
4. a photovoltaic solar electric power supply control system, is characterized in that, comprising:
First sampling unit, for gathering the photovoltaic voltage that photovoltaic apparatus provides;
Second sampling unit, for gathering the discharge voltage of storage battery;
3rd sampling unit, for gathering line voltage;
Supply control unit, the photovoltaic voltage that the photovoltaic apparatus for extracting the first sampling unit collection provides, judges whether photovoltaic voltage meets the demands, if when photovoltaic voltage meets the demands, utilizes photovoltaic apparatus to power for load; If photovoltaic voltage does not meet the demands, 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, storage battery is utilized to power for load; If the discharge voltage of storage battery does not meet the demands, utilize civil power to power for load, utilize civil power to charge in batteries, whether the line voltage that inquiry the 3rd sampling unit gathers is lower than scheduled voltage; If line voltage is lower than scheduled voltage, then performs and utilize storage battery to carry out the operation of powering for load; If line voltage is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the operation of powering for load; If photovoltaic voltage does not meet the demands, then perform line voltage that inquiry the 3rd sampling unit gathers whether lower than the operation of scheduled voltage.
5. system according to claim 4, is characterized in that:
Supply control unit also for utilizing photovoltaic apparatus for after load powers, utilizes photovoltaic apparatus to charge in batteries, the operation of the photovoltaic voltage that the photovoltaic apparatus then performing the collection of extraction first sampling unit provides.
6. the system according to claim 4 or 5, is characterized in that:
Supply control unit specifically utilizes storage battery to power for load, whether inquires about battery discharging voltage that the second sampling unit gathers lower than scheduled voltage; If the discharge voltage of storage battery is lower than scheduled voltage, then performs and utilize civil power to carry out the operation of powering for load; If the discharge voltage of storage battery is greater than or equal to scheduled voltage, whether the photovoltaic voltage of inquiring about the first sampling unit collection meets the demands; If photovoltaic voltage meets the demands, then perform and utilize photovoltaic apparatus to carry out the operation of powering for load; If photovoltaic voltage does not meet the demands, then perform battery discharging voltage that inquiry second sampling unit gathers whether lower than the operation of scheduled voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210543867.2A CN103872754B (en) | 2012-12-14 | 2012-12-14 | Photovoltaic solar method for controlling power supply and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210543867.2A CN103872754B (en) | 2012-12-14 | 2012-12-14 | Photovoltaic solar method for controlling power supply and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103872754A CN103872754A (en) | 2014-06-18 |
| CN103872754B true CN103872754B (en) | 2016-04-13 |
Family
ID=50911010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210543867.2A Active CN103872754B (en) | 2012-12-14 | 2012-12-14 | Photovoltaic solar method for controlling power supply and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103872754B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7830038B2 (en) * | 2007-12-17 | 2010-11-09 | Shay-Ping Thomas Wang | Single chip solution for solar-based systems |
| CN102185531A (en) * | 2011-05-16 | 2011-09-14 | 武汉纺织大学 | Solar photovoltaic off-grid and grid-connected multi-mode generating system |
| CN202353305U (en) * | 2011-12-03 | 2012-07-25 | 南京普天大唐信息电子有限公司 | Solar energy and commercial power complementation controller |
| CN102780250A (en) * | 2012-08-20 | 2012-11-14 | 佛山市柏克新能科技股份有限公司 | Solar charge controller |
-
2012
- 2012-12-14 CN CN201210543867.2A patent/CN103872754B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103872754A (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105914868B (en) | Super capacitor energy-storage uninterruptible power supply and its method of supplying power to based on current transformer | |
| CN102005817B (en) | Uninterruptible power supply device based on microgrid and dispatching control method thereof | |
| CN205622303U (en) | Utilize super capacitor to realize that current transformer of uninterrupted power supply gets electric power supply circuit | |
| CN203368044U (en) | Bidirectional ac/dc multi-power-supply multi-load safe-isolation micro electrical network system | |
| CN201398159Y (en) | Household solar, wind-power and commercial power network type power supply system | |
| CN202712873U (en) | Intelligent household solar control inverter | |
| CN103259059B (en) | A kind of flow battery initial charge method and circuit | |
| CN104092236A (en) | Hybrid renewable energy and energy storage system power supply system and control method thereof | |
| CN103066679A (en) | Universal communication base station solar and wind energy centralized power supply system and control method thereof | |
| CN102810901A (en) | Communication power supply system based on fuel cell | |
| CN103872754B (en) | Photovoltaic solar method for controlling power supply and system | |
| CN201629692U (en) | Domestic energy-saving power supply system for solar, tap water hydraulic, wind hybrid concentrated power supply | |
| CN201774266U (en) | Energy-storage control system | |
| CN103023135A (en) | Multi-level direct current transformation power supply device | |
| CN203466613U (en) | Household off-network light-storage supplementary electricity generation system compatible with multiple types of energy-storage systems | |
| CN203218879U (en) | Wind-solar complementary off-grid control system | |
| CN202121531U (en) | Solar energy photovoltaic power supply system | |
| CN101924372B (en) | Energy storage control system | |
| CN103956961B (en) | A kind of control method of lonely net light wind oil hybrid power system | |
| CN202872443U (en) | Fuel-cell-based communication power supply | |
| CN203312895U (en) | Universal type communication base station solar energy and wind energy centralized power supply system | |
| CN215813253U (en) | Remote control system for checking capacity of communication power supply storage battery | |
| CN202602351U (en) | Time sharing power supply energy storage system for residence | |
| CN203596647U (en) | Power supply unit of ATM | |
| CN204538732U (en) | Fully-automatic intelligent charging, reparation all-in-one |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |