CN108155711A - A kind of intelligentized inverse control all-in-one machine and control method - Google Patents
A kind of intelligentized inverse control all-in-one machine and control method Download PDFInfo
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- CN108155711A CN108155711A CN201711423357.0A CN201711423357A CN108155711A CN 108155711 A CN108155711 A CN 108155711A CN 201711423357 A CN201711423357 A CN 201711423357A CN 108155711 A CN108155711 A CN 108155711A
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- photovoltaic panel
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- storage battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to the inverse control device fields of photovoltaic, more particularly to a kind of intelligentized inverse control all-in-one machine and control method, the inverse control all-in-one machine includes a main control unit, the main control unit detection energy-storage battery capacity and photovoltaic panel power, and according to the maximum power of photovoltaic panel and the power ratio of load equipment, the operating mode of the main control unit control photovoltaic panel, energy-storage battery and alternating current;By detecting the power of battery capacity and photovoltaic panel, different operating modes is controlled, rationally utilizes the energy of photovoltaic panel, and ensures that energy-storage battery has enough energy.
Description
Technical field
The present invention relates to the inverse control device fields of photovoltaic, and in particular to a kind of intelligentized inverse control all-in-one machine and control method.
Background technology
Inverse control all-in-one machine is integrated with inverter and photovoltaic controller, can provide inversion and alternating current two kinds of suppliers of electricity for load
Formula, wherein, inversion provides energy by energy-storage battery.Usually when alternating current is normal, by alternating current powering load, in city's electrical anomaly
When by energy-storage battery after inversion powering load.Since inverse control all-in-one machine does not have grid-connected function, photovoltaic battery panel
Energy is commonly used to charge the battery, and after battery is full of, the dump energy of photovoltaic battery panel generally wastes, and does not obtain
It utilizes well.
In order to more utilize the energy of photovoltaic panel, there are also improved technical method, examples for inverse control all-in-one machine at present
Such as by setting inverter priority task pattern, as long as the voltage of energy-storage battery exists in the capacity of normal range (NR) or energy-storage battery
In a certain range, just persistently using inversion powering load, until battery capacity is switched to less than electric discharge setting value, load is stopped
Mains-supplied.But by the way that the scheme of inversion priority task pattern is set to have some limitations;When battery capacity stopping is put
Electric setting value is too low, can lead to battery reserve off-capacity, and load power down can be caused when encountering city's electrical anomaly;When battery capacity is stopped
Only electric discharge setting value is excessively high, and the energy of photovoltaic panel cannot get sufficient utilization.
Therefore, a kind of intelligentized inverse control all-in-one machine of design and control method, are always that those skilled in the art's emphasis is ground
One of the problem of studying carefully.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of intelligentized inverse
All-in-one machine is controlled, solution can not ensure that energy-storage battery makes full use of asking for the energy of photovoltaic panel in the case of having sufficient electricity
Topic.
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of inverse control all-in-one machine
Control method, solution can not ensure that energy-storage battery makes full use of asking for the energy of photovoltaic panel in the case of having sufficient electricity
Topic.
To solve the technical problem, the present invention provides a kind of intelligentized inverse control all-in-one machine, the inverse control all-in-one machine difference
It being electrically connected with load equipment, photovoltaic panel and city and including an energy-storage battery, the inverse control all-in-one machine includes main control unit,
The main control unit is connect respectively with load equipment, photovoltaic panel, alternating current and energy-storage battery, the photovoltaic panel connection energy storage electricity
Pond;Wherein, the main control unit sets the first normal capacity, the first calibration power ratio and the second calibration power ratio, the master control
When unit detects that energy-storage battery capacity is more than the first normal capacity and photovoltaic panel and reaches maximum power, if photovoltaic panel
Higher than the first calibration power ratio, the main control unit control photovoltaic panel is load for maximum power and the power ratio of load equipment
Equipment is powered, and photovoltaic panel is controlled to charge for energy-storage battery;If the maximum power of photovoltaic panel and the power of load equipment
Ratio is less than the first calibration power ratio and higher than the second calibration power ratio, the main control unit control energy-storage battery and photovoltaic face
Plate is powered together for load equipment;If the maximum power of photovoltaic panel and the power ratio of load equipment are less than the second calibration power
Than the main control unit control alternating current is powered, and photovoltaic panel is controlled to charge for energy-storage battery for load equipment.
Wherein, preferred version is:The first calibration power ratio is 1, and the second calibration power ratio is 0.3.
Wherein, preferred version is:The main control unit sets the second normal capacity, and the main control unit detects energy storage electricity
When tankage is more than the first normal capacity and photovoltaic panel and reaches maximum power, if the maximum power of photovoltaic panel and load are set
For standby power ratio less than the first calibration power ratio and higher than the second calibration power ratio, the main control unit controls energy-storage battery
It is load equipment continued power together with photovoltaic panel;When main control unit detects that energy-storage battery capacity is less than the second normal capacity
Afterwards, the main control unit control alternating current is powered for load equipment.
Wherein, preferred version is:First normal capacity is 90%, and second normal capacity is 70%.
Wherein, preferred version is:The inverse control all-in-one machine further includes detection unit, and the detection unit connects master control respectively
Unit and photovoltaic panel, the power of the main control unit control detection unit detection photovoltaic panel.
Wherein, preferred version is:The detection unit is MPPT circuits.
Wherein, preferred version is:The inverse control all-in-one machine further includes inversion unit, and the inversion unit connects energy storage respectively
The direct current of energy-storage battery and photovoltaic panel is converted to alternating current by battery and photovoltaic panel, the inversion unit.
Wherein, preferred version is:The inverse control all-in-one machine further includes voltage regulation unit, the voltage regulation unit connection photovoltaic face
Plate, the voltage regulation unit are photovoltaic panel voltage stabilizing.
Wherein, preferred version is:The inverse control all-in-one machine includes a housing, and the main control unit and energy-storage battery are arranged on
In housing, set on the housing there are one alternating current input interface and at least one photovoltaic panel input interface, the alternating current inputs
Interface connects alternating current, and the photovoltaic panel input interface connects photovoltaic panel;It is defeated that at least one exchange is additionally provided on the housing
Outgoing interface, the AC output interface connect load equipment.
The present invention also provides a kind of control method of inverse control all-in-one machine, the inverse control all-in-one machine respectively with load equipment, light
Underlying surface Ban He cities are electrically connected and including an energy-storage batteries, which is characterized in that the control method specifically includes following steps:
Set the first normal capacity, the first calibration power ratio and the second calibration power ratio;
When detecting that energy-storage battery capacity is more than the first normal capacity and photovoltaic panel and reaches maximum power, if photovoltaic face
Higher than the first calibration power ratio, control photovoltaic panel is supplied for load equipment for the maximum power of plate and the power ratio of load equipment
Electricity, and photovoltaic panel is controlled to charge for energy-storage battery;
If the maximum power of photovoltaic panel and the power ratio of load equipment are less than the first calibration power ratio and higher than the
Two calibration power ratios control energy-storage battery and photovoltaic panel to power together for load equipment;
If less than the second calibration power ratio, control alternating current is for the maximum power of photovoltaic panel and the power ratio of load equipment
Load equipment is powered, and photovoltaic panel is controlled to charge for energy-storage battery.
The beneficial effects of the present invention are compared with prior art, the present invention is by designing a kind of intelligentized inverse control one
Body machine by detecting the power of battery capacity and photovoltaic panel, controls different operating modes, rationally utilizes photovoltaic panel
Even if energy in the case where battery is full of, will not waste the energy of photovoltaic panel, and ensure that the electricity of energy-storage battery fills
Foot, to prevent being used during city's electrical anomaly, so as to ensure that the continuity powered for load equipment, improves the flexibility used.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing:
Fig. 1 is the structure diagram for electric installation that the present invention is used for load equipment;
Fig. 2 is the structure diagram of the inverse control all-in-one machine of the present invention;
Fig. 3 is power flow direction schematic diagram when energy-storage battery capacity of the present invention is less than the first normal capacity;
Fig. 4 is power flow direction schematic diagram when energy-storage battery capacity of the present invention is higher than the first normal capacity;
Fig. 5 is that power flow direction is illustrated when photovoltaic panel of the present invention reaches maximum power and energy-storage battery is in charged state
Figure;
Fig. 6 is the structure diagram of detection unit of the present invention;
Fig. 7 is the structure diagram of voltage regulation unit and inversion unit of the present invention.
Specific embodiment
In conjunction with attached drawing, elaborate to presently preferred embodiments of the present invention.
As shown in Figures 1 to 7, the present invention provides a kind of preferred embodiment of intelligentized inverse control all-in-one machine.
Specifically, with reference to figure 1, a kind of intelligentized inverse control all-in-one machine 100, the inverse control all-in-one machine 100 connects negative respectively
Equipment 200, photovoltaic panel 300 and alternating current 400 are carried, the alternating current 400 is industrial-frequency alternating current, and the inverse control all-in-one machine 100 is logical
It crosses photovoltaic panel 300 to charge, power after the adjusting that the alternating current 400 passes through inverse control all-in-one machine 100 for load equipment 200,
The photovoltaic panel 300 is powered after can also being adjusted by inverse control all-in-one machine 100 for load equipment 200;With reference to figure 2, the inverse control
All-in-one machine 100 include main control unit 110 and energy-storage battery 120, the main control unit 110 be a governor circuit, the master control list
Member 110 is connect respectively with photovoltaic panel 300 and energy-storage battery 120, and the photovoltaic panel 300 connects energy-storage battery 120, the storage
Energy battery 120 connects load equipment 200, and the photovoltaic panel 300 is also connected with load equipment 200;Wherein, the main control unit
110 the first normal capacities of setting, the first calibration power ratio and the second calibration power ratio, the main control unit 110 detect energy storage
When 120 capacity of battery is more than the first normal capacity and photovoltaic panel 300 and reaches maximum power, if the maximum of photovoltaic panel 300
The power ratio of power and load equipment 200 is higher than the first calibration power ratio, and the main control unit 110 controls photovoltaic panel 300
It powers for load equipment 200, and photovoltaic panel 300 is controlled to charge for energy-storage battery 120;If the maximum work of photovoltaic panel 300
Rate and the power ratio of load equipment 200 are less than the first calibration power ratio and higher than the second calibration power ratio, the master control list
Member 110 controls energy-storage battery 120 and photovoltaic panel 300 to power together for load equipment 200;If the maximum work of photovoltaic panel 300
Less than the second calibration power ratio, the main control unit 110 controls alternating current 400 as load for rate and the power ratio of load equipment 200
Equipment 200 is powered, and photovoltaic panel 300 is controlled to charge for energy-storage battery 120.
Further, and with reference to figure 2, the main control unit 110 detects that 120 capacity of energy-storage battery holds less than the first standard
During amount, the main control unit 110 controls alternating current 400 to power for load equipment 200;In addition, the main control unit 110 detects storage
Can battery 120 capacity be more than the first normal capacity and when photovoltaic panel 300 is not up to maximum power, the main control unit 110
Control energy-storage battery 120 and photovoltaic panel 300 are powered together for load equipment 200, since the bearing power of load equipment 200 exists
The a certain period is considered as constant, then the output power of photovoltaic panel 300 gradually increases, the output power of energy-storage battery 120
It is gradually reduced.
More specifically, as shown in Figures 3 to 5, PpvFor the maximum power of photovoltaic panel 300, PbatFor energy-storage battery 120
Discharge power, PinvFor inverter power, PlineFor 400 power of alternating current, PloadFor the bearing power of inverse control all-in-one machine 100, wherein, when
When energy-storage battery 120 discharges, PbatMore than 0, when energy-storage battery 120 charges, PbatLess than 0.
Fig. 3 shows power flow direction when 120 capacity of energy-storage battery is less than the first normal capacity, when 120 capacity of energy-storage battery
During less than the first normal capacity, such as when 120 capacity of energy-storage battery is less than 90%, the alternating current 400 flows to inverse control all-in-one machine
100, the inverse control all-in-one machine 100 controls alternating current 400 to power for load equipment 200, at this point, Pload=Pline。
Fig. 4 shows power flow direction when 120 capacity of energy-storage battery is higher than the first normal capacity, when energy-storage battery 120 is higher than
During the first normal capacity, for example, 120 capacity of energy-storage battery be higher than 90% when, the energy-storage battery 120 i.e. will be fully charged, charge work(
Rate becomes smaller, and the inverse control all-in-one machine 100 controls energy-storage battery 120 and photovoltaic panel 300 to power together for load equipment 200, this
When, the bearing power P of the inverse control all-in-one machine 100load=Ppv+Pbat, since the bearing power was considered as in a certain period
When it is invariable, with the power P of photovoltaic panel 300pvGradually increase, the discharge power P of the energy-storage battery 120batGradually
Reduce.
Gradually increase with the power of photovoltaic panel 300, when photovoltaic panel 300 reaches maximum power, with reference to figure 5, if
The maximum power of photovoltaic panel 300 is sufficiently large, and more than the maximum power of photovoltaic panel 300 and the power of load equipment 200
Ratio is higher than the first calibration power ratio, i.e. Ppv≥Pload, at this point, the maximum power of the photovoltaic panel 300 and load equipment 200
Power ratio be more than or equal to 1, then Pbat<0, the energy-storage battery 120 is in charged state, the load equipment 200 by
Photovoltaic panel 300 is powered, and the photovoltaic panel 300 charges, and the photovoltaic panel 300 is kept for energy-storage battery 120
The working condition, power continuously decrease;The main control unit 110 is also set with third calibration power ratio, if photovoltaic panel 300
Maximum power is bigger, and the maximum power of photovoltaic panel 300 and the power ratio of load equipment 200 are less than the first standard work(
Rate ratio and higher than third calibration power ratio, i.e. Ppv<Pload, at this point, the maximum power and load equipment of the photovoltaic panel 300
200 power ratio less than 1 and is more than or equal to 0.7 higher than the first calibration power ratio, then Pbat>0, the energy-storage battery
120 are in discharge condition, and the load equipment 200 is powered together by energy-storage battery 120 and photovoltaic panel 300, and the light
Underlying surface plate 300 and energy-storage battery 120 keep the working condition, and the power of the photovoltaic panel 300 continuously decreases;If photovoltaic panel
300 maximum power is moderate, and the maximum power of photovoltaic panel 300 and the power ratio of load equipment 200 are higher than the first mark
Quasi- power ratio, i.e. Ppv<Pload, at this point, the maximum power of the photovoltaic panel 300 and the power ratio of load equipment 200 are higher than
First calibration power ratio is more than or equal to 0.3, then Pbat>0, the energy-storage battery 120 is in discharge condition, and the load is set
Standby 200 are powered together by energy-storage battery 120 and photovoltaic panel 300, and the power of the photovoltaic panel 300 continuously decreases, Zhi Daoguang
The power of underlying surface plate 300 is less than the second calibration power ratio, and subsequent main control unit 110 controls alternating current 400 to be supplied for load equipment 200
Electricity, and the dump energy of photovoltaic panel 300 is controlled to charge for energy-storage battery 120;Alternatively, the main control unit 110 setting the
Two normal capacities, second normal capacity is preferably 70%, when energy-storage battery 120 is in the power supply process for load equipment 200
In, capacity drops below 70%, and main control unit 110 controls alternating current 400 to power, and control photovoltaic face for load equipment 200
The dump energy of plate 300 charges for energy-storage battery 120;If the maximum power of photovoltaic panel 300 is smaller, i.e. Ppv《Pload, it is
PpvFar smaller than Pload, at this point, the ratio of the maximum power of the photovoltaic panel 300 and the bearing power of load equipment 200 is small
In 0.3, then Pbat》0, it is PbatIt is far longer than 0, the energy-storage battery 120 is in high power discharge state, the main control unit
110 control alternating currents 400 are powered for load equipment 200, and 120 capacity of energy-storage battery is as energy reserve.It can be seen from the above, with
Family can be as much as possible the energy using photovoltaic panel 300, energy is provided for load equipment 200, even if in energy-storage battery
In the case that 120 are full of, the energy of photovoltaic panel 300 will not be wasted, while energy-storage battery 120 preserves enough as far as possible again
Energy, to prevent being used during 400 exception of alternating current.
Above-mentioned the first normal capacity, the second normal capacity, the first calibration power ratio, the second calibration power ratio and third mark
Quasi- power is not limited to given example, can also be other, not limit herein.
In the present embodiment, with reference to figure 6, the inverse control all-in-one machine 100 further includes detection unit 130, the detection unit
130 connect main control unit 110 and photovoltaic panel 300 respectively, and the main control unit 110 controls 130 detection light underlying surface of detection unit
The power of plate 300;Wherein, the detection unit 130 is MPPT circuits, and the MPPT circuits have self-test, anti-reverse charging protection, mistake
It puts functions, the energy conversion efficiencies such as protection, recovery interval, temperature-compensating and is up to 98%, be easy to accurately detect photovoltaic panel 300
Power.
In the present embodiment, with reference to figure 7, the inverse control all-in-one machine 100 further includes inversion unit 140, the inversion unit
140 connect energy-storage battery 120 and photovoltaic panel 300 respectively, and the inversion unit 140 is inverter, by inverter bridge, control logic
It is formed with filter circuit, the direct current of energy-storage battery 120 and photovoltaic panel 300 is converted to alternating current by the inversion unit 140;
If the maximum power of photovoltaic panel 300 is more than the second calibration power ratio, the inversion unit 140 keeps corresponding work shape
State, until the power drop of photovoltaic panel 300, to less than the second calibration power ratio, the inverse control all-in-one machine 100 controls alternating current 400
It powers for load equipment 200.
In the present embodiment, with reference to figure 7, the inverse control all-in-one machine 100 further includes voltage regulation unit 150, the voltage regulation unit
150 connection photovoltaic panels 300, the voltage regulation unit 150 is 300 voltage stabilizing of photovoltaic panel, is provided when charging for energy-storage battery 120
One regulated power supply also can provide a regulated power supply when powering for load equipment 200;Wherein, the voltage regulation unit 150 is BUCK
Circuit is negative 300 voltage stabilizing of light by buck chopper, provides regulated power supply.
Further, the inverse control all-in-one machine 100 includes a housing, and the main control unit 110 and energy-storage battery 120 are set
It puts in housing, the detection unit 130, inversion unit 140 and voltage regulation unit 150 are also arranged in housing, on the housing
If there are one 300 input interface of 400 input interface of alternating current and at least one photovoltaic panel, 400 input interface of the alternating current connection
Alternating current 400,300 input interface of photovoltaic panel connect photovoltaic panel 300;It is defeated that at least one exchange is additionally provided on the housing
Outgoing interface, the AC output interface connects load equipment 200, if being provided with multiple AC output interfaces, the exchange output
Interface uses parallel-connection structure.
In conclusion the foregoing is merely a prefered embodiment of the invention, it is not intended to limit the scope of the present invention.
Any modification made all within the spirits and principles of the present invention, equivalent replacement, improve etc., it should be included in the guarantor of the present invention
In the range of shield.
Claims (10)
1. a kind of intelligentized inverse control all-in-one machine, the inverse control all-in-one machine are electrically connected respectively with load equipment, photovoltaic panel and city,
And including an energy-storage battery, it is characterised in that:The inverse control all-in-one machine includes main control unit, and the main control unit is respectively with bearing
It carries equipment, photovoltaic panel, alternating current to connect with energy-storage battery, the photovoltaic panel connects energy-storage battery;Wherein, the main control unit
The first normal capacity, the first calibration power ratio and the second calibration power ratio are set, the main control unit detects that energy-storage battery holds
When amount reaches maximum power more than the first normal capacity and photovoltaic panel, if the maximum power of photovoltaic panel and load equipment
Power ratio is higher than the first calibration power ratio, and the main control unit control photovoltaic panel is powered, and control light for load equipment
Underlying surface plate charges for energy-storage battery;If the maximum power of photovoltaic panel and the power ratio of load equipment are less than the first calibration power
Than and higher than the second calibration power ratio, the main control unit control energy-storage battery and photovoltaic panel supply together for load equipment
Electricity;If the maximum power of photovoltaic panel and the power ratio of load equipment are less than the second calibration power ratio, the main control unit control
Alternating current processed is powered for load equipment, and photovoltaic panel is controlled to charge for energy-storage battery.
2. inverse control all-in-one machine according to claim 1, it is characterised in that:The first calibration power ratio is 1, described second
Calibration power ratio is 0.3.
3. inverse control all-in-one machine according to claim 1 or 2, it is characterised in that:The main control unit, which sets the second standard, to be held
Amount, when the main control unit detects that energy-storage battery capacity is more than the first normal capacity and photovoltaic panel and reaches maximum power,
If the maximum power of photovoltaic panel and the power ratio of load equipment are less than the first calibration power ratio and higher than the second standard work(
Rate ratio, the main control unit control energy-storage battery and photovoltaic panel are load equipment continued power together;When main control unit detects
After being less than the second normal capacity to energy-storage battery capacity, the main control unit control alternating current is powered for load equipment.
4. inverse control all-in-one machine according to claim 3, it is characterised in that:First normal capacity is 90%, described the
Two normal capacities are 70%.
5. inverse control all-in-one machine according to claim 1, it is characterised in that:The inverse control all-in-one machine further includes detection unit,
The detection unit connects main control unit and photovoltaic panel respectively, the main control unit control detection unit detection photovoltaic panel
Power.
6. inverse control all-in-one machine according to claim 5, it is characterised in that:The detection unit is MPPT circuits.
7. inverse control all-in-one machine according to claim 5 or 6, it is characterised in that:The inverse control all-in-one machine further includes inversion list
Member, the inversion unit connect energy-storage battery and photovoltaic panel respectively, and the inversion unit is by energy-storage battery and photovoltaic panel
Direct current is converted to alternating current.
8. inverse control all-in-one machine according to claim 7, it is characterised in that:The inverse control all-in-one machine further includes voltage regulation unit,
The voltage regulation unit connects photovoltaic panel, and the voltage regulation unit is photovoltaic panel voltage stabilizing.
9. inverse control all-in-one machine according to claim 1, it is characterised in that:The inverse control all-in-one machine includes a housing, described
Main control unit and energy-storage battery are arranged in housing, are set on the housing there are one alternating current input interface and at least one photovoltaic face
Plate input interface, the alternating current input interface connect alternating current, and the photovoltaic panel input interface connects photovoltaic panel;The housing
On be additionally provided at least one AC output interface, the AC output interface connects load equipment.
10. a kind of control method of inverse control all-in-one machine, the inverse control all-in-one machine are electrically connected respectively with load equipment, photovoltaic panel and city
It connects and including an energy-storage battery, which is characterized in that the control method specifically includes following steps:
Set the first normal capacity, the first calibration power ratio and the second calibration power ratio;
When detecting that energy-storage battery capacity is more than the first normal capacity and photovoltaic panel and reaches maximum power, if photovoltaic panel
Higher than the first calibration power ratio, control photovoltaic panel is powered for load equipment for maximum power and the power ratio of load equipment, and
And control photovoltaic panel charges for energy-storage battery;
If the maximum power of photovoltaic panel and the power ratio of load equipment are less than the first calibration power ratio and higher than the second mark
Quasi- power ratio controls energy-storage battery and photovoltaic panel to power together for load equipment;
If less than the second calibration power ratio, control alternating current is load for the maximum power of photovoltaic panel and the power ratio of load equipment
Equipment is powered, and photovoltaic panel is controlled to charge for energy-storage battery.
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CN103199564A (en) * | 2013-04-18 | 2013-07-10 | 山东圣阳电源股份有限公司 | Intelligent power grid distributed self-supporting photovoltaic power supply system |
CN103855790A (en) * | 2014-03-24 | 2014-06-11 | 电子科技大学 | Intelligent photovoltaic power generation system with energy storage function and control method of system |
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Application publication date: 20180612 |