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 PDF

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Publication number
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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CN
China
Prior art keywords
photovoltaic panel
energy
storage battery
power ratio
load equipment
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Pending
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CN201711423357.0A
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Chinese (zh)
Inventor
郑开科
杨桂贤
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Shenzhen Shuo New Energy Technology Co Ltd
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Shenzhen Shuo New Energy Technology Co Ltd
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Priority to CN201711423357.0A priority Critical patent/CN108155711A/en
Publication of CN108155711A publication Critical patent/CN108155711A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit 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
    • H02J9/06Circuit 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
    • H02J9/062Circuit 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power 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

A kind of intelligentized inverse control all-in-one machine and control method
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.
CN201711423357.0A 2017-12-25 2017-12-25 A kind of intelligentized inverse control all-in-one machine and control method Pending CN108155711A (en)

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Application Number Priority Date Filing Date Title
CN201711423357.0A CN108155711A (en) 2017-12-25 2017-12-25 A kind of intelligentized inverse control all-in-one machine and control method

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Application Number Priority Date Filing Date Title
CN201711423357.0A CN108155711A (en) 2017-12-25 2017-12-25 A kind of intelligentized inverse control all-in-one machine and control method

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Publication Number Publication Date
CN108155711A true CN108155711A (en) 2018-06-12

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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