CN107453413A - PV air-conditioner electric power system and method - Google Patents
PV air-conditioner electric power system and method Download PDFInfo
- Publication number
- CN107453413A CN107453413A CN201710595800.6A CN201710595800A CN107453413A CN 107453413 A CN107453413 A CN 107453413A CN 201710595800 A CN201710595800 A CN 201710595800A CN 107453413 A CN107453413 A CN 107453413A
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- Prior art keywords
- photovoltaic
- air
- conditioner
- simulator
- unit
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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
- H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
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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
Abstract
The invention discloses a kind of PV air-conditioner electric power system and method.The system includes：Mains supply, for exporting alternating current；Photovoltaic simulator, is connected with mains supply, and the alternating current for being exported according to mains supply carries out photovoltaic generation, exports photovoltaic direct current；PV air-conditioner, it is connected respectively with photovoltaic simulator and mains supply, the photovoltaic DC electricity of photovoltaic simulator output and the alternating current of mains supply output are powered for the unit of PV air-conditioner, to be debugged to PV air-conditioner.By the present invention, solve and the installation progress that photovoltaic air-conditioner set depends on solar panels is tested in correlation technique, cause the problem of longer to the debugging cycle of PV air-conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of PV air-conditioner electric power system and method.
Background technology
PV air-conditioner is green, meets development strategy of the country to clean energy resource, receives increasing client and closes
Note., it is necessary to test every PV air-conditioner before every PV air-conditioner dispatches from the factory, for example, can be to every PV air-conditioner
Photovoltaic mode is tested.Photovoltaic mode test for PV air-conditioner is typically scheduled at the installation and debugging stage, due to air-conditioning
Installation is asynchronous with the installation of solar panels, and test photovoltaic air-conditioner set depends on the installation progress of solar panels, causes to light
The debugging cycle for lying prostrate air-conditioner set is longer.
For in correlation technique, test photovoltaic air-conditioner set depends on the installation progress of solar panels, cause empty to photovoltaic
The problem of debugging cycle of tune is longer, effective solution is not yet proposed at present.
The content of the invention
It is a primary object of the present invention to provide a kind of PV air-conditioner electric power system and method for supplying power to, to solve correlation technique
Middle test photovoltaic air-conditioner set depends on the installation progress of solar panels, causes longer to the debugging cycle of PV air-conditioner ask
Topic.
To achieve these goals, according to an aspect of the invention, there is provided a kind of PV air-conditioner electric power system.This is
System includes：Mains supply, for exporting alternating current；Photovoltaic simulator, it is connected with the mains supply, for according to the civil power
The alternating current of power supply output carries out photovoltaic generation, exports photovoltaic direct current；PV air-conditioner, with the photovoltaic simulator and the city
Power supply connects respectively, and the alternating current of the electric and described mains supply output of photovoltaic DC of the photovoltaic simulator output is described
The unit power supply of PV air-conditioner, to be debugged to the PV air-conditioner.
Further, the system also includes：Variable-frequency power sources equipment, it is connected with the mains supply, for the city
The alternating current of power supply output carries out voltage stabilizing processing, so that the voltage stabilization of the alternating current of variable-frequency power sources equipment output is pre-
If in voltage range.
Further, the system also includes：Transformer, it is connected with the mains supply, for by the mains supply
The alternating current of output is converted to target voltage, and the target voltage is transmitted to the photovoltaic simulator, is the photovoltaic mould
Intend device power supply.
Further, the transformer is additionally operable to be connected with the variable-frequency power sources equipment, for the variable-frequency power sources to be set
The alternating current of standby output is converted to target voltage, and the target voltage is transmitted to the photovoltaic simulator, is the photovoltaic
Simulator is powered.
Further, the system also includes：First relay, for the first relay described in when first switch closes
Electric closure is obtained, in the case where first relay obtains electric closure, described transformer one end connects with the photovoltaic simulator,
The transformer other end is connected with the mains supply or connected with the variable-frequency power sources equipment.
Further, the system also includes：Second relay, for the second relay described in when second switch closes
Electric closure, in the case where second relay obtains electric closure, the photovoltaic simulator connected with the mains supply or
The photovoltaic simulator connects with the variable-frequency power sources equipment.
Further, the system also includes：First judging unit, it is arranged in the unit of the PV air-conditioner, is used for
Photovoltaic generation is carried out in the alternating current that the photovoltaic simulator exports according to the mains supply, exports the situation of photovoltaic direct current
Under, judge whether the power of the photovoltaic simulator output photovoltaic direct current is more than the specified work(of the unit of the PV air-conditioner
Rate；First computing unit, it is arranged in the unit of the PV air-conditioner, for exporting photovoltaic direct current in the photovoltaic simulator
Power be more than the PV air-conditioner unit rated power in the case of, calculate the first power difference, wherein, described first
Power difference is the rated power that the photovoltaic simulator exports the power of photovoltaic direct current and the unit of the PV air-conditioner
Difference；First transmission unit, one end are connected with the unit of the PV air-conditioner, and the other end is connected with the photovoltaic simulator, are used
Transmit to the photovoltaic simulator in by the first power difference in the unit of the PV air-conditioner, supplied for the photovoltaic simulator
Electricity.
Further, the system also includes：Second judging unit, it is arranged in the unit of the PV air-conditioner, is used for
Photovoltaic generation is carried out in the power supply that the photovoltaic simulator exports according to the variable-frequency power sources equipment, exports the feelings of photovoltaic direct current
Under condition, judge whether the power of the photovoltaic simulator output photovoltaic direct current is more than the specified work(of the unit of the PV air-conditioner
Rate；Second computing unit, it is arranged in the unit of the PV air-conditioner, for exporting photovoltaic direct current in the photovoltaic simulator
Power be more than the PV air-conditioner unit rated power in the case of, calculate the second power difference, wherein, described second
Power difference is the rated power that the photovoltaic simulator exports the power of photovoltaic direct current and the unit of the PV air-conditioner
Difference；Second transmission unit, one end are connected with the unit of the PV air-conditioner, and the other end is connected with the photovoltaic simulator, are used
Transmit to the photovoltaic simulator in by the second power difference in the unit of the PV air-conditioner, supplied for the photovoltaic simulator
Electricity.
To achieve these goals, according to another aspect of the present invention, there is provided a kind of method of supplying power to of PV air-conditioner, its
It is characterised by, including：The alternating current for receiving mains supply output carries out photovoltaic generation；Obtain photovoltaic DC caused by photovoltaic generation
Electricity；The alternating current exported according to the mains supply and photovoltaic DC electricity are powered for the unit of the PV air-conditioner, so as to
The PV air-conditioner is debugged.
Further, before the alternating current for receiving mains supply output carries out photovoltaic generation, methods described also includes：It is right
The alternating current of the mains supply output carries out voltage stabilizing processing, obtains alternating current of the voltage stabilization in predetermined voltage range；Connect
Receiving the alternating current progress photovoltaic generation of mains supply output includes：Receive exchange of the voltage stabilization in predetermined voltage range
Electricity carries out photovoltaic generation.
By the invention it is possible to the alternating current exported using photovoltaic simulator according to mains supply carries out photovoltaic generation, it is defeated
Go out photovoltaic direct current, and the alternating current that the photovoltaic DC electricity and mains supply exported according to photovoltaic simulator exports is PV air-conditioner
Unit power supply, so as to being debugged to PV air-conditioner, be no longer limited by solar panels and photovoltaic power supply be provided, the present invention passes through city
The alternating current of power supply output carries out photovoltaic generation, can carry out the debugging of PV air-conditioner unit in real time, be carried without solar panels
For photovoltaic DC electricity, the debug time of PV air-conditioner can be reduced accordingly, photovoltaic generation be carried out using mains supply, without waiting for peace
Assembling solar panel engineering terminates, it is possible to PV air-conditioner is debugged, reaches the debugging cycle of shortening PV air-conditioner unit
Effect, and then solve to test the installation progress that photovoltaic air-conditioner set depends on solar panels in correlation technique, cause empty to photovoltaic
The problem of debugging cycle of tune is longer.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of PV air-conditioner electric power system according to embodiments of the present invention；
Fig. 2 is a kind of schematic diagram of the electric power system of optional PV air-conditioner according to embodiments of the present invention；
Fig. 3 is the schematic diagram that supply line is interlocked in the control system according to a kind of optional PV air-conditioner of the present invention；
Fig. 4 is a kind of schematic diagram one of the electric power system of optional PV air-conditioner according to embodiments of the present invention；
Fig. 5 is the schematic diagram two of the electric power system of the optional PV air-conditioner of another kind according to embodiments of the present invention；
Fig. 6 is a kind of schematic diagram three of the electric power system of optional PV air-conditioner according to embodiments of the present invention；
Fig. 7 is a kind of schematic diagram four of the electric power system of optional PV air-conditioner according to embodiments of the present invention；
Fig. 8 is a kind of schematic diagram five of the electric power system of optional PV air-conditioner according to embodiments of the present invention；
Fig. 9 is a kind of schematic diagram six of the electric power system of optional PV air-conditioner according to embodiments of the present invention；
Figure 10 is a kind of flow chart of the method for supplying power to of PV air-conditioner according to embodiments of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.
To achieve these goals, according to an aspect of the invention, there is provided a kind of PV air-conditioner electric power system.Fig. 1
It is a kind of schematic diagram of PV air-conditioner electric power system according to embodiments of the present invention, as shown in figure 1, the system includes：
Mains supply 11, for exporting alternating current；
Photovoltaic simulator 13, is connected with mains supply, and the alternating current for being exported according to mains supply carries out photovoltaic generation,
Export photovoltaic direct current；
PV air-conditioner 15, it is connected respectively with photovoltaic simulator and mains supply, the photovoltaic DC electricity of photovoltaic simulator output
Powered with the alternating current of mains supply output for the unit of PV air-conditioner, to be debugged to PV air-conditioner.
By above-mentioned embodiment, photovoltaic hair can be carried out using the alternating current that photovoltaic simulator exports according to mains supply
Electricity, photovoltaic direct current is exported, and the alternating current that the photovoltaic DC electricity and mains supply exported according to photovoltaic simulator exports is light
The unit power supply of air-conditioning is lied prostrate, so as to be debugged to PV air-conditioner, solar panels is no longer limited by and photovoltaic power supply, the present invention is provided
In by mains supply export alternating current carry out photovoltaic generation, the debugging of PV air-conditioner unit can be carried out in real time, without too
Positive energy plate provides photovoltaic DC electricity, and the debug time of PV air-conditioner can be reduced accordingly, and photovoltaic generation, nothing are carried out using mains supply
Need to wait for installation solar panels engineering to terminate, it is possible to debug PV air-conditioner, reach the tune for shortening PV air-conditioner unit
The effect in cycle is tried, and then solves to test the installation progress that photovoltaic air-conditioner set depends on solar panels in correlation technique, is caused
The problem of longer to the debugging cycle of PV air-conditioner.
Optionally, above-mentioned mains supply can be national grid provide conventional power supply, magnitude of voltage can be it is fixed,
Such as 220V, 380V.After PV air-conditioner unit is installed, mains supply can be connected, to get fixed alternating current, and then
Drive the operating of PV air-conditioner unit.
Optionally, the PV air-conditioner unit in the present invention can supply by the way of mains-supplied and photovoltaic power supply combine
Electricity, after the photovoltaic voltage of photovoltaic simulator offer is provided, powered to PV air-conditioner unit, if the electric energy of photovoltaic power supply is not
Foot, the part of electric energy deficiency can be supplied by mains-supplied, can will be more if the electric energy of photovoltaic power supply has unnecessary place
Remaining photovoltaic electric energy returns to photovoltaic simulator, for the electric energy output of photovoltaic simulator next time.Optionally, in the present invention
The electric energy of photovoltaic simulator can be converted by the alternating current of mains supply output, will after photovoltaic electric energy is converted into
Photovoltaic electric energy is exported into PV air-conditioner unit, to debug PV air-conditioner in the case of input photovoltaic electric energy and civil power electric energy
Operation conditions.
Another optional embodiment, photovoltaic simulator can be the equipment of simulation output photovoltaic electric energy, thus without
The debugging of PV air-conditioner unit could be carried out by needing to wait for building after solar energy-electric energy plate is completed, be reduced to PV air-conditioner unit
Dependence of debugging when being tested to solar panels.
Optionally, the PV air-conditioner in the present invention can be equipment that photovoltaic simulator is combined with air-conditioner set, with
In the case that solar energy provides photovoltaic electric energy, the electric energy exported with reference to mains supply operates, it is possible to reduce uses civil power electric energy, section
The use of electric energy is saved, reduces the power consumption of electric energy.
Optionally, the line voltage of the mains supply output in the present invention may have impurity, cause the voltage of output
It is unstable, at this moment voltage stabilizing can be carried out by variable-frequency power sources equipment.Optionally, above-mentioned system also includes：Variable-frequency power sources is set
It is standby, it is connected with mains supply, the alternating current for being exported to mains supply carries out voltage stabilizing processing, so that variable-frequency power sources equipment exports
Alternating current voltage stabilization in predetermined voltage range.
By above-described embodiment, the line voltage of output can be subjected to voltage stabilizing, to ensure output to PV air-conditioner unit
Line voltage and output to the line voltage of photovoltaic simulator be stable, the debugging that can improve PV air-conditioner unit is imitated
Rate.Wherein one end of the variable-frequency power sources equipment can be connected with mains supply, the other end can respectively with PV air-conditioner unit and
Photovoltaic simulator connects, for exporting stable line voltage to PV air-conditioner unit and photovoltaic simulator.
Optionally, above-mentioned system can also include：Transformer, it is connected with mains supply, for mains supply to be exported
Alternating current be converted to target voltage, and target voltage is transmitted to photovoltaic simulator, powered for photovoltaic simulator.
By above-described embodiment, transformer can be arranged between variable-frequency power sources equipment and photovoltaic simulator, utilize the change
The line voltage that depressor can export frequency conversion voltage apparatus is converted to the voltage that photovoltaic simulator can use, for example, frequency conversion
The line voltage of voltage apparatus output is 380V, and the voltage that photovoltaic simulator can use is 220V, at this moment can utilize the change
Depressor is converted to 380V line voltage 220V voltage, so that photovoltaic simulator uses.If the electricity that photovoltaic simulator uses
Pressure is identical with the voltage of frequency conversion voltage apparatus output, then without using the transformer, directly exports line voltage to photovoltaic mould
Intend in device, so that photovoltaic simulator is converted to photovoltaic electric energy.
Optionally, the photovoltaic simulator of above-described embodiment using electric energy include two for the use of, be on the one hand that mains supply is defeated
The alternating current gone out, on the one hand can be that the electric energy that PV air-conditioner unit has been not used is back in photovoltaic simulator, for photovoltaic
Simulator uses next time.If the electric energy that PV air-conditioner unit uses does not have remaining, the electric energy of photovoltaic simulator only has civil power
The alternating current of power supply output.
Optionally, transformer is additionally operable to be connected with variable-frequency power sources equipment, for the alternating current for exporting variable-frequency power sources equipment
Target voltage is converted to, and target voltage is transmitted to photovoltaic simulator, is powered for photovoltaic simulator.The target voltage can be
The voltage that photovoltaic simulator uses, 220V as escribed above voltage.
Another optional embodiment, system can also include：First relay, for when first switch closes
One relay obtains electric closure, and in the case where the first relay obtains electric closure, transformer one end connects with photovoltaic simulator, transformation
The device other end is connected with mains supply or connected with variable-frequency power sources equipment.
Optionally, first relay of above-described embodiment can be arranged at frequency conversion voltage apparatus between transformer, be somebody's turn to do
First relay is used to control transformer to be switched on or off, and is used in the voltage of frequency conversion voltage apparatus output with photovoltaic simulator
When target voltage is inconsistent, the first relay can be closed, so as to which the alternating current for being exported mains supply by transformer turns
It is changed to the target voltage that photovoltaic simulator uses.
Optionally, system also includes：Second relay, for when second switch closes the second relay obtain electric closure,
In the case where the second relay obtains electric closure, photovoltaic simulator is connected with mains supply or photovoltaic simulator is set with variable-frequency power sources
Standby connection.
By above-mentioned embodiment, the second relay can be utilized, in the voltage and photovoltaic mould of the output of frequency conversion voltage apparatus
When the target voltage that plan device uses is identical, second relay is closed, so as to directly connect frequency conversion voltage apparatus and photovoltaic simulation
Device, line voltage is exported into photovoltaic simulator.Optionally, can be by above-mentioned first when the second relay closes
Relay disconnects, so as to ensure that output to the voltage of photovoltaic simulator is stable.It is another optional, closed in the first relay
During conjunction, the second relay can be disconnected, so as to ensure that output to the line voltage of transformer is stable, turned by transformer
The voltage output changed will not allow photovoltaic simulator to receive two kinds of voltages into photovoltaic simulator.
Optionally, system also includes：First judging unit, is arranged in the unit of PV air-conditioner, for being simulated in photovoltaic
The alternating current that device exports according to mains supply carries out photovoltaic generation, in the case of exporting photovoltaic direct current, judges photovoltaic simulator
Whether the power of output photovoltaic direct current is more than the rated power of the unit of PV air-conditioner；First computing unit, is arranged at photovoltaic
In the unit of air-conditioning, the rated power of the unit for being more than PV air-conditioner in the power of photovoltaic simulator output photovoltaic direct current
In the case of, calculate the first power difference, wherein, the first power difference be photovoltaic simulator export photovoltaic direct current power with
The difference of the rated power of the unit of PV air-conditioner；First transmission unit, one end and PV air-conditioner unit connection, the other end with
Photovoltaic simulator connects, and is transmitted for the first power difference in the unit by PV air-conditioner to photovoltaic simulator, is photovoltaic mould
Intend device power supply.
By above-mentioned embodiment, the whether enough PV air-conditioners of photovoltaic electric energy that photovoltaic simulator exports can will be determined
Unit uses, in the case where determining the enough PV air-conditioner unit uses of electric energy of photovoltaic simulator output, if there is residue,
Remaining electric energy can be then back in photovoltaic simulator, think that photovoltaic simulator is powered.
Wherein, in the above embodiments, the electric energy that photovoltaic simulator uses does not carry out voltage stabilizing by variable-frequency power sources equipment,
The alternating current of mains supply output can be directly output in photovoltaic simulator, if the voltage of mains supply makes with photovoltaic simulator
Voltage is different, transformer can also be used to carry out transformation, obtains the voltage that photovoltaic simulator can use, and then to photovoltaic
Simulator exports its voltage that can be used.
Optionally, above-mentioned system can also include：Second judging unit, is arranged in the unit of PV air-conditioner, is used for
Photovoltaic generation is carried out in the power supply that photovoltaic simulator exports according to variable-frequency power sources equipment, in the case of exporting photovoltaic direct current, is sentenced
Whether the power of disconnected photovoltaic simulator output photovoltaic direct current is more than the rated power of the unit of PV air-conditioner；Second calculates list
Member, it is arranged in the unit of PV air-conditioner, for being more than PV air-conditioner in the power of photovoltaic simulator output photovoltaic direct current
In the case of the rated power of unit, the second power difference is calculated, wherein, the second power difference is that photovoltaic simulator exports photovoltaic
The difference of the rated power of the power of direct current and the unit of PV air-conditioner；The machine of second transmission unit, one end and PV air-conditioner
Group connection, the other end are connected with photovoltaic simulator, transmitted for the second power difference in the unit by PV air-conditioner to photovoltaic
Simulator, powered for photovoltaic simulator.
After the alternating current of mains supply output in above-described embodiment carries out voltage stabilizing by frequency conversion voltage apparatus, export to light
Lie prostrate in simulator or PV air-conditioner unit.Using above-described embodiment, line voltage can be exported into photovoltaic simulator, so as to
Line voltage is converted to by photovoltaic electric energy by photovoltaic simulator, to export into PV air-conditioner unit, if PV air-conditioner unit
Electric energy has not been used, then remaining electric energy can be back in photovoltaic simulator by the circuit of transformer.
By above-described embodiment, photovoltaic simulator simulation output photovoltaic voltage, the electricity that photovoltaic simulator uses can be utilized
Pressure can be that mains supply provides, and after mains supply provides alternating current, can utilize frequency conversion voltage apparatus to line voltage
Voltage stabilizing is carried out, so as to provide stable voltage, by the voltage output after voltage stabilizing into photovoltaic simulator, so that photovoltaic simulator turns
Photovoltaic voltage is changed to, photovoltaic voltage is provided to PV air-conditioner unit.On the other hand, can be with when debugging PV air-conditioner unit
Civil power electric imitating is provided by the line voltage of above-mentioned mains supply offer.So as to debug photovoltaic by photovoltaic simulator
Air-conditioning, the efficiency of debugging is improved, shorten the debugging cycle of PV air-conditioner, solve the problems, such as that PV air-conditioner debugging cycle is long.
Fig. 2 is a kind of schematic diagram of the electric power system of optional PV air-conditioner according to embodiments of the present invention, such as Fig. 2 institutes
Show, the system includes, mains supply 1, variable-frequency power sources equipment 2, transformer 3, photovoltaic simulator 4, PV air-conditioner unit 5.Wherein,
The parameter of mains supply 1 can be with 220V/3N, 380V/3N, i.e. the output voltage of mains supply can be 220V or 380V, separately
Outside, variable-frequency power sources equipment 2 can carry out voltage stabilizing, the output voltage stablized to the voltage that mains supply 1 exports；Transformer 3
Can be with conversion voltage value, for example, being 220V's by the voltage that 220V voltage conversion is 380V, or by 380 voltage conversion
Voltage, determined according to photovoltaic simulator 4 using voltage, such as when it is 380V that photovoltaic simulator 4 is using voltage, and civil power is electric
The voltage that source 1 exports is 220V, and at this moment can closes the first relay KM1, converts voltages into 380V, and by after conversion
Voltage output is into photovoltaic simulator 4.
Optionally, the output voltage of photovoltaic simulator 4 is DC voltage, corresponding straight according to the different outputs of line voltage
Stream is supplied electricity in PV air-conditioner unit 5, so that PV air-conditioner unit 5 uses.Fig. 3 is a kind of optional photovoltaic sky according to the present invention
The schematic diagram of supply line is interlocked in the control system of tune, as shown in figure 3, (corresponding to above-mentioned first to open in first switch SB1
Close) closure when, the first relay KM1 (corresponding above-mentioned the first relay) can be powered, the electricity that can export mains supply
Pressure is exported into transformer KM1 by relay KM1, and at this moment, switch SB2 (corresponding above-mentioned second switch) is to disconnect, after
Electrical equipment KM2 (corresponding the second above-mentioned relay) disconnects (i.e. relay KM2 will not be obtained electric), and the line voltage of output passes through transformation
Device is transformed into up in photovoltaic simulator.Optionally, can be by switching SB3 closure operations so that relay KM2 is powered, this
When, switch SB4 can be disconnected, with out of service, relay KM1 disconnects (i.e. now KM1 must not be electric), the line voltage of output
Can directly it reach in photovoltaic simulator KM2, without passing through transformer.
Fig. 4 is a kind of schematic diagram one of the electric power system of optional PV air-conditioner according to embodiments of the present invention, the debugging
Device can apply in above-described embodiment, for example, the parameter of mains supply is 380V/3N, it is not necessary to carry out transformation, civil power electricity
Then the alternating current of the output of pressure 1 can be directly output to PV air-conditioner unit 5 and photovoltaic mould by the voltage stabilizing of variable-frequency power sources equipment 2
Intend in device 4, its mode run can be with same as described above.After photovoltaic simulator 4 is reached, photovoltaic simulator 4 can be passed through
Photovoltaic electric energy is converted to, the photovoltaic electric energy can be direct current, and by the photovoltaic DC electricity output into PV air-conditioner unit 5.
Fig. 5 is the schematic diagram two of the electric power system of the optional PV air-conditioner of another kind according to embodiments of the present invention, as shown in figure 5, example
Such as, the parameter of mains supply is 380V/3N, it is not necessary to carries out transformation, the line voltage that mains supply 1 exports is directly output to light
Lie prostrate in simulator 4 or PV air-conditioner unit 5, it is not necessary to which variable-frequency power sources equipment 2 carrys out voltage stabilizing.Wherein, the city that mains supply 1 exports
Piezoelectric voltage is alternating current, and the voltage that photovoltaic simulator 4 exports is direct current.
Optionally, in the electric power system shown in above-mentioned Fig. 4 and Fig. 5, the parameter of mains supply is 380V/3N voltage,
In electric power system shown in Fig. 4, variable-frequency power sources equipment 2 can be used to carry out voltage stabilizing.In electric power system shown in Fig. 5, do not make
Voltage stabilizing is carried out with variable-frequency power sources equipment 2, the alternating current of mains supply output can be directly output to PV air-conditioner unit 5 or light
Lie prostrate in simulator 4.
Fig. 6 is a kind of schematic diagram three of the electric power system of optional PV air-conditioner according to embodiments of the present invention, such as Fig. 6 institutes
Show, the debugging apparatus employs variable-frequency power sources equipment 2.For the parameter of mains supply for 220V/3N, it is necessary to carry out transformation, civil power is electric
Then the alternating current of the output of pressure 1 exports to transformer by the voltage stabilizing of variable-frequency power sources equipment 2, is then transmit to photovoltaic simulator 4.
Photovoltaic electric energy is converted to by photovoltaic simulator 4, the photovoltaic electric energy can be direct current, and by the photovoltaic DC electricity output to light
Lie prostrate in air-conditioner set 5.
Fig. 7 is according to a kind of schematic diagram four of the electric power system of optional PV air-conditioner of the present invention, as shown in fig. 7, should
Debugging apparatus does not use variable-frequency power sources equipment 2.The parameter of mains supply be 220V/3N, it is necessary to carry out transformation, line voltage 1
The exchange electricity output of output is then transmit to photovoltaic simulator 4 to transformer.Photovoltaic electric energy is converted to by photovoltaic simulator 4,
The photovoltaic electric energy can be direct current, and by the photovoltaic DC electricity output into PV air-conditioner unit 5.
Fig. 8 is a kind of schematic diagram five of the electric power system of optional PV air-conditioner according to embodiments of the present invention, such as Fig. 8 institutes
Show, the debugging apparatus is applied in the embodiment shown in Fig. 2, after mains supply 1 exports line voltage, is set by variable-frequency power sources
Standby 2 carry out voltage stabilizings, then, by the voltage output after voltage stabilizing to PV air-conditioner unit 5 or photovoltaic simulator 4, wherein, photovoltaic
The alternating current that mains supply exports can be converted to direct current by simulator, so that PV air-conditioner unit 5 uses, if PV air-conditioner
Unit 5 has not been used, and remaining electric energy can be led back to photovoltaic simulator and realize consumption, using law of conservation of energy, disappeared
Except air-conditioning affluence generating electricity, realize the protection to variable-frequency power sources equipment 2 or eliminate the alternating current that photovoltaic is sent in debugging process
Impure influence client's normal electricity consumption quality.When carrying out installation and debugging using variable-frequency power sources equipment 2, PV air-conditioner, which has, to generate electricity by way of merging two or more grid systems
Function, but variable-frequency power sources equipment does not possess the function that consumption inversely generates electricity, electricity accumulation impact variable-frequency power sources equipment 2 can cause
It burns, and the present invention can effectively avoid variable-frequency power sources equipment, and the alternating current for cleverly sending PV air-conditioner guides light echo
Lie prostrate simulator and realize consumption.When carrying out installation and debugging using civil power, PV air-conditioner has function of generating electricity by way of merging two or more grid systems, during debugging
If caused impure alternating current is incorporated among the power network of client, it may occur that the anomalies such as electric light is flickering, serious shadow
The power quality of client is rung, can be stable by line voltage by variable-frequency power sources equipment 2, so that by the voltage output after voltage stabilizing extremely
In photovoltaic simulator 4 and PV air-conditioner unit 5.
Fig. 9 is a kind of schematic diagram six of the electric power system of optional PV air-conditioner according to embodiments of the present invention, such as Fig. 9 institutes
Show, the debugging apparatus is applied in the embodiment shown in Fig. 2, can not apply to variable-frequency power sources equipment 2, mains supply 1 is exported
Line voltage be directly output in photovoltaic simulator 4 or PV air-conditioner unit 5, photovoltaic simulator 4 changes line voltage
It is photovoltaic DC electricity output into PV air-conditioner unit 5, can be by remaining electric energy if PV air-conditioner unit 5 has not used
Lead back in photovoltaic simulator 4.Utility grid can be effectively avoided, the alternating current for cleverly sending PV air-conditioner is led back to
Photovoltaic simulator realizes consumption, using PV air-conditioner loop service, adjustment and installation PV air-conditioner, can effectively ensure that PV air-conditioner
Functional completeness, reliability.
, can be without waiting for the installation progress of solar panel by above-described embodiment, and pass through the light normally debugged
The abnormal conditions that occur after solar panel dock of volt air-conditioning, it can quickly judge the problem of being solar panel, realization
Quick overhaul, project dispute therefore such as is caused, also can accuse solar panels producer by effective debugging process data, prevent
The project delay caused by project dispute.
Figure 10 is a kind of flow chart of the method for supplying power to of PV air-conditioner according to embodiments of the present invention, as shown in Figure 10, should
Method comprises the following steps：
Step S1001, the alternating current for receiving mains supply output carry out photovoltaic generation；
Step S1002, obtain photovoltaic DC electricity caused by photovoltaic generation；
Step S1003, the alternating current exported according to mains supply and photovoltaic DC electricity are powered for the unit of PV air-conditioner, with
Just PV air-conditioner is debugged.
By above-mentioned embodiment, the alternating current that can be exported by receiving mains supply carries out photovoltaic generation, and obtains
To photovoltaic DC electricity caused by photovoltaic generation, the alternating current exported according to mains supply and the machine that photovoltaic DC electricity is PV air-conditioner
Group power supply, to be debugged to PV air-conditioner.In the embodiment, the alternating current exported by mains supply carries out photovoltaic generation,
The photovoltaic generation is direct current, and PV air-conditioner is debugged, and is terminated without waiting for installation solar panels engineering, it is possible to carry out
The debugging of PV air-conditioner, the debugging efficiency of PV air-conditioner is improved, shorten the time of debugging.
Optionally, before the alternating current for receiving mains supply output carries out photovoltaic generation, this method also includes：To civil power
The alternating current of power supply output carries out voltage stabilizing processing, obtains alternating current of the voltage stabilization in predetermined voltage range；Receive civil power electricity
The alternating current of source output, which carries out photovoltaic generation, to be included：The stable alternating current in predetermined voltage range of receiving voltage carries out photovoltaic hair
Electricity.
It should be noted that can be in such as one group of computer executable instructions the flow of accompanying drawing illustrates the step of
Performed in computer system, although also, show logical order in flow charts, in some cases, can be with not
The order being same as herein performs shown or described step.
The electric power system of PV air-conditioner provided in an embodiment of the present invention, the electric power system include processor and memory.Place
Kernel is included in reason device, is gone in memory to transfer corresponding program unit by kernel.Kernel can set one or more, pass through
Kernel parameter is adjusted to improve the debugging efficiency of PV air-conditioner, shortens the time of debugging.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/
Or the form such as Nonvolatile memory, such as read-only storage (ROM) or flash memory (flash RAM), memory includes at least one deposit
Store up chip.
The embodiments of the invention provide a kind of storage medium, program is stored thereon with, it is real when the program is executed by processor
The method of supplying power to of the existing PV air-conditioner.
The embodiments of the invention provide a kind of processor, the processor is used for operation program, wherein, described program operation
The method of supplying power to of PV air-conditioner described in Shi Zhihang.
The embodiments of the invention provide a kind of equipment, equipment includes processor, memory and storage on a memory and can
The program run on a processor, following steps are realized during computing device program：The alternating current for receiving mains supply output enters
Row photovoltaic generation；Obtain photovoltaic DC electricity caused by photovoltaic generation；Alternating current and the photovoltaic DC electricity exported according to mains supply
Powered for the unit of PV air-conditioner, to be debugged to PV air-conditioner.
Before the alternating current for receiving mains supply output carries out photovoltaic generation, method also includes：Mains supply is exported
Alternating current carry out voltage stabilizing processing, obtain alternating current of the voltage stabilization in predetermined voltage range；Receive mains supply output
Alternating current, which carries out photovoltaic generation, to be included：The stable alternating current in predetermined voltage range of receiving voltage carries out photovoltaic generation.Herein
In equipment can be server, PC, PAD, mobile phone etc..
Present invention also offers a kind of computer program product, when being performed on data processing equipment, is adapted for carrying out just
The program of beginningization there are as below methods step：The alternating current for receiving mains supply output carries out photovoltaic generation；Obtain photovoltaic generation production
Raw photovoltaic DC electricity；Alternating current and the photovoltaic DC electricity exported according to mains supply is powered for the unit of PV air-conditioner, so as to
PV air-conditioner is debugged.
Before the alternating current for receiving mains supply output carries out photovoltaic generation, method also includes：Mains supply is exported
Alternating current carry out voltage stabilizing processing, obtain alternating current of the voltage stabilization in predetermined voltage range；Receive mains supply output
Alternating current, which carries out photovoltaic generation, to be included：The stable alternating current in predetermined voltage range of receiving voltage carries out photovoltaic generation.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and internal memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/
Or the form such as Nonvolatile memory, such as read-only storage (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moved
State random access memory (DRAM), other kinds of random access memory (RAM), read-only storage (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only storage (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic cassette tape, the storage of tape magnetic rigid disk or other magnetic storage apparatus
Or any other non-transmission medium, the information that can be accessed by a computing device available for storage.Define, calculate according to herein
Machine computer-readable recording medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Comprising so that process, method, commodity or equipment including a series of elements not only include those key elements, but also wrapping
Include the other element being not expressly set out, or also include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including key element
Other identical element in process, method, commodity or equipment also be present.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, system or computer program product.
Therefore, the present invention can be using the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Form.Deposited moreover, the present invention can use to can use in one or more computers for wherein including computer usable program code
The shape for the computer program product that storage media is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
Embodiments of the invention are these are only, are not intended to limit the invention.To those skilled in the art,
The present invention can have various modifications and variations.All any modifications made within spirit and principles of the present invention, equivalent substitution,
Improve etc., it should be included within scope of the presently claimed invention.
Claims (10)
- A kind of 1. PV air-conditioner electric power system, it is characterised in that including：Mains supply, for exporting alternating current；Photovoltaic simulator, it is connected with the mains supply, the alternating current for being exported according to the mains supply carries out photovoltaic hair Electricity, export photovoltaic direct current；PV air-conditioner, it is connected respectively with the photovoltaic simulator and the mains supply, the photovoltaic of the photovoltaic simulator output Direct current and the alternating current of mains supply output are powered for the unit of the PV air-conditioner, to enter to the PV air-conditioner Row debugging.
- 2. system according to claim 1, it is characterised in that the system also includes：Variable-frequency power sources equipment, it is connected with the mains supply, the alternating current for being exported to the mains supply is carried out at voltage stabilizing Reason, so that the voltage stabilization of the alternating current of variable-frequency power sources equipment output is in predetermined voltage range.
- 3. system according to claim 2, it is characterised in that the system also includes：Transformer, it is connected with the mains supply, the alternating current for the mains supply to be exported is converted to target voltage, and The target voltage is transmitted to the photovoltaic simulator, powered for the photovoltaic simulator.
- 4. system according to claim 3, it is characterised in that the transformer is additionally operable to connect with the variable-frequency power sources equipment Connect, the alternating current for the variable-frequency power sources equipment to be exported is converted to target voltage, and the target voltage is transmitted to institute Photovoltaic simulator is stated, is powered for the photovoltaic simulator.
- 5. system according to claim 4, it is characterised in that the system also includes：First relay, electric closure is obtained for the first relay described in when first switch closes, is obtained in first relay In the case of electricity closure, described transformer one end connects with the photovoltaic simulator, the transformer other end and the civil power Power supply is connected or connected with the variable-frequency power sources equipment.
- 6. system according to claim 2, it is characterised in that the system also includes：Second relay, electric closure is obtained for the second relay described in when second switch closes, is obtained in second relay In the case of electricity closure, the photovoltaic simulator is connected with the mains supply or the photovoltaic simulator and the variable-frequency power sources Equipment connects.
- 7. system according to claim 1, it is characterised in that the system also includes：First judging unit, be arranged in the unit of the PV air-conditioner, in the photovoltaic simulator according to the civil power The alternating current of power supply output carries out photovoltaic generation, in the case of exporting photovoltaic direct current, judges the photovoltaic simulator output light Whether the power of volt direct current is more than the rated power of the unit of the PV air-conditioner；First computing unit, it is arranged in the unit of the PV air-conditioner, for exporting photovoltaic DC in the photovoltaic simulator In the case that the power of electricity is more than the rated power of the unit of the PV air-conditioner, the first power difference is calculated, wherein, described the One power difference is the rated power that the photovoltaic simulator exports the power of photovoltaic direct current and the unit of the PV air-conditioner Difference；First transmission unit, one end are connected with the unit of the PV air-conditioner, and the other end is connected with the photovoltaic simulator, is used for The first power difference in the unit of the PV air-conditioner is transmitted to the photovoltaic simulator, supplied for the photovoltaic simulator Electricity.
- 8. system according to claim 2, it is characterised in that the system also includes：Second judging unit, be arranged in the unit of the PV air-conditioner, in the photovoltaic simulator according to the frequency conversion The power supply of power-supply device output carries out photovoltaic generation, in the case of exporting photovoltaic direct current, judges the photovoltaic simulator output Whether the power of photovoltaic DC electricity is more than the rated power of the unit of the PV air-conditioner；Second computing unit, it is arranged in the unit of the PV air-conditioner, for exporting photovoltaic DC in the photovoltaic simulator In the case that the power of electricity is more than the rated power of the unit of the PV air-conditioner, the second power difference is calculated, wherein, described the Two power differences are the rated power that the photovoltaic simulator exports the power of photovoltaic direct current and the unit of the PV air-conditioner Difference；Second transmission unit, one end are connected with the unit of the PV air-conditioner, and the other end is connected with the photovoltaic simulator, is used for The second power difference in the unit of the PV air-conditioner is transmitted to the photovoltaic simulator, supplied for the photovoltaic simulator Electricity.
- A kind of 9. method of supplying power to of PV air-conditioner, it is characterised in that including：The alternating current for receiving mains supply output carries out photovoltaic generation；Obtain photovoltaic DC electricity caused by photovoltaic generation；The alternating current exported according to the mains supply and photovoltaic DC electricity are powered for the unit of the PV air-conditioner, so as to The PV air-conditioner is debugged.
- 10. according to the method for claim 9, it is characterised in thatBefore the alternating current for receiving mains supply output carries out photovoltaic generation, methods described also includes：To the mains supply The alternating current of output carries out voltage stabilizing processing, obtains alternating current of the voltage stabilization in predetermined voltage range；Receiving the alternating current progress photovoltaic generation of mains supply output includes：The voltage stabilization is received in predetermined voltage range Alternating current carry out photovoltaic generation.
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| CN201710595800.6A CN107453413B (en) | 2017-07-19 | 2017-07-19 | Photovoltaic air conditioner power supply system and method |
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| CN201710595800.6A CN107453413B (en) | 2017-07-19 | 2017-07-19 | Photovoltaic air conditioner power supply system and method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201251264A (en) * | 2011-06-08 | 2012-12-16 | Nat Univ Chung Cheng | Device of bi-directional inverter and direct current power system thereof |
| US20130002021A1 (en) * | 2011-06-30 | 2013-01-03 | Sanyo Electric Co., Ltd. | Inverter and power conversion device including the same |
| CN206908374U (en) * | 2017-07-19 | 2018-01-19 | 珠海格力电器股份有限公司 | PV air-conditioner electric power system |
-
2017
- 2017-07-19 CN CN201710595800.6A patent/CN107453413B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201251264A (en) * | 2011-06-08 | 2012-12-16 | Nat Univ Chung Cheng | Device of bi-directional inverter and direct current power system thereof |
| US20130002021A1 (en) * | 2011-06-30 | 2013-01-03 | Sanyo Electric Co., Ltd. | Inverter and power conversion device including the same |
| CN206908374U (en) * | 2017-07-19 | 2018-01-19 | 珠海格力电器股份有限公司 | PV air-conditioner electric power system |
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