CN205489759U - Photovoltaic energy storage air conditioning device - Google Patents
Photovoltaic energy storage air conditioning device Download PDFInfo
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- CN205489759U CN205489759U CN201620110632.8U CN201620110632U CN205489759U CN 205489759 U CN205489759 U CN 205489759U CN 201620110632 U CN201620110632 U CN 201620110632U CN 205489759 U CN205489759 U CN 205489759U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 181
- 238000004378 air conditioning Methods 0.000 title claims abstract description 156
- 230000005611 electricity Effects 0.000 claims abstract description 114
- 238000010248 power generation Methods 0.000 claims abstract description 111
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000008859 change Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 26
- 238000010977 unit operation Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model discloses a photovoltaic energy storage air conditioning device, which comprises a photovoltaic power generation device, an energy storage device, an air conditioning unit and an energy dispatching management device; the energy scheduling management device includes: the detection module is used for detecting the running state of the air conditioner, the power supply electric quantity and the working state of the photovoltaic power generation device and the energy storage device; and the scheduling module is used for controlling power supply and/or charging according to the running state, the power supply electric quantity and the working state of the air conditioner, and the set power supply priority and power utilization priority. The utility model discloses a photovoltaic energy storage air conditioning equipment, according to actual electricity generation, accumulate and the change of power consumption condition and move under the mode of difference, realize many modes of operation real-time operation, reduce weather modification, battery power storage volume, electric wire netting running state to the influence of normal operating, improve stability and reliability to photovoltaic power generation quantity is not extravagant, and the battery life-span receives the influence of charge-discharge to diminish, realizes the interests maximize.
Description
Technical field
This utility model relates to air-conditioning technical field, particularly relates to a kind of photovoltaic energy storage air-conditioning device.
Background technology
Energy shortage is the problem that the ratio faced at present is more serious, and solving one of this problem is to use solar electrical energy generation.Existing more ripe PV air-conditioner system be mainly photovoltaic electric energy and municipal administration electric energy with the use of, when system is affected by some objective factors (such as darkness, power failure, Changes in weather etc.), PV air-conditioner system may be caused not run normally.At present, there is the concept of some photovoltaic energy storage air conditioning systems to propose, PV air-conditioner system increases energy-storage units, forms photovoltaic energy storage air conditioning system framework, ensure energy supply and properly functioning.But the concrete dispensing mode of the energy in PV air-conditioner system, and photovoltaic energy storage air conditioning system forms running status be still not clear according to energy supply change, coordinated operation and the control strategy of the energy in PV air-conditioner system are still not clear, make in PV air-conditioner system energy supply instability, it is impossible to realize also, off-network double-purpose.Accordingly, it would be desirable to a kind of new photovoltaic energy storage air conditioning system, it is possible to can reliable and stable run in the case of various energy variation, it is achieved photovoltaic energy storage air conditioning system can also, off-network double-purpose.
Utility model content
In view of this, a technical problem to be solved in the utility model is to provide a kind of photovoltaic energy storage air-conditioning device.
A kind of photovoltaic energy storage air-conditioning device, including: photovoltaic power generation apparatus, energy storage device, air conditioning unit and energy dispatching managing device；Described photovoltaic power generation apparatus, described energy storage device and public electric wire net air conditioning unit are connected with described respectively, are used for powering；Described photovoltaic power generation apparatus, described public electric wire net are connected with described energy storage device respectively, are used for charging；Described photovoltaic power generation apparatus is additionally operable to the grid-connected power supply of described public electric wire net；Described energy dispatching managing device includes: detection module, with described photovoltaic power generation apparatus, described energy storage device, described air conditioning unit be connected, for detecting running state of air conditioner, described photovoltaic power generation apparatus and the powering quantity of described energy storage device and duty；Scheduler module, is connected with described photovoltaic power generation apparatus, described energy storage device, described public electric wire net, is used for according to described running state of air conditioner, described powering quantity and duty, and the power supply priority and the electricity consumption two priority classes that set are powered and/or charge.
According to an embodiment of the present utility model, further, described photovoltaic power generation apparatus includes: photovoltaic array, inverter, switching device and electric energy meter；Described photovoltaic array is sequentially connected with described switching device, described inverter；Described inverter and described public electric wire net connect；Described switching device air conditioning unit is connected with described；Described electric energy meter it is provided with on line between described photovoltaic array and described switching device；Described detection module is connected with described electric energy meter, obtains the generating electricity of described photovoltaic array；Described scheduler module is connected with described switching device and described inverter, and controlling described photovoltaic array is that described air conditioning unit and/or described public electric wire net is powered.
According to an embodiment of the present utility model, further, described energy storage device includes: energy-storage battery group and battery energy management module；Described battery energy management module is connected with described energy-storage battery group；Described detection module and described scheduler module are connected with described battery energy management module respectively, described detection module obtains the electricity of described energy-storage battery group by described battery energy management module, and described scheduler module controls the duty of described energy-storage battery group by described battery energy management module.
According to an embodiment of the present utility model, further, described energy storage device also includes: DC converter；Described energy-storage battery group is connected with described public electric wire net by described DC converter.
According to an embodiment of the present utility model, further, described public electric wire net air conditioning unit is connected with described by switching device；Described scheduler module is connected with described switching device.
According to an embodiment of the present utility model, further, described air conditioning unit include: controller；Described controller is connected with described detection module, is used for obtaining running state of air conditioner.
Photovoltaic energy storage air-conditioning device of the present utility model, photovoltaic power generation apparatus, energy storage device, municipal public electric wire net are linked into air-conditioning and form photovoltaic energy storage air-conditioning device, can according to actual power, storage electricity from the change of electricity consumption situation and operate under different mode of operations, realize multi-operation mode real time execution, reduce Changes in weather, battery power storage amount, operation of power networks state to properly functioning impact, improve Stability and dependability, and photovoltaic generation consumption is not wasted, the life of storage battery is affected by discharge and recharge to diminish.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the control of an embodiment according to photovoltaic energy storage air-conditioning device of the present utility model, supply line's connection diagram；
Fig. 2 is the control of another embodiment according to photovoltaic energy storage air-conditioning device of the present utility model, supply line's connection diagram；
Fig. 3, for can be just met for air conditioning unit operation at photovoltaic power generation apparatus electricity, is directly driven the confession electrical schematic of air conditioning unit operation by photovoltaic power generation apparatus generating；
Fig. 4 for air conditioning unit not running, energy storage device electricity deficiency time, the confession electrical schematic that photovoltaic power generation apparatus system is charged to energy storage device；
Fig. 5 for when air conditioning unit not running, energy storage device electricity being sufficient or does not works, the confession electrical schematic that photovoltaic power generation apparatus electricity is the most grid-connected；
Fig. 6 be do not generate electricity at photovoltaic power generation apparatus, the electricity of energy storage device sufficient, now given the confession electrical schematic of air conditioning unit power supply by energy storage device；
Fig. 7 for when photovoltaic power generation apparatus do not generate electricity, air conditioning unit do not run, energy storage device electricity deficiency time, public electric wire net the confession electrical schematic charged to energy storage device；
Fig. 8 for when photovoltaic power generation apparatus do not generate electricity, energy storage device electricity deficiency time, by public electric wire net give air conditioning unit power supply, drive operation of air conditioner, simultaneously to energy storage device charging confession electrical schematic；
When Fig. 9 is to go back surplus, energy storage device electricity deficiency after when photovoltaic power generation apparatus electricity for air conditioning unit operation, the confession electrical schematic that now photovoltaic power generation apparatus electrical generation priority charges to energy storage device；
When Figure 10 is also surplus after when photovoltaic power generation apparatus electricity for air conditioning unit operation, energy storage device electricity is sufficient or does not works, the most unnecessary electricity is to the confession electrical schematic of public grid-connected power supply；
Figure 11 is that insufficient section is provided by public electric wire net, the confession electrical schematic simultaneously powered to energy storage device when photovoltaic power generation apparatus generation deficiency is for air conditioning unit operation, energy storage device electricity also deficiency；
Figure 12 is when photovoltaic power generation apparatus generation deficiency is for air conditioning unit operation, energy storage device electricity abundance, the confession electrical schematic that insufficient section is powered by energy storage device；
Figure 13 for when energy storage device do not work, photovoltaic power generation apparatus generation deficiency for air conditioning unit run time, insufficient section is by the confession electrical schematic of public electric wire net supplementary power；
Figure 14 for when energy storage device do not work, photovoltaic power generation apparatus do not generate electricity time, public electric wire net is directly to the confession electrical schematic of air conditioning unit power supply；
Figure 15 is the schematic flow sheet of an embodiment of the control method according to photovoltaic energy storage air-conditioning device of the present utility model.
Detailed description of the invention
With reference to the accompanying drawings this utility model is described more fully, exemplary embodiment of the present utility model is wherein described.Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.Below in conjunction with each figure and embodiment, the technical solution of the utility model is carried out many descriptions.
As it is shown in figure 1, this utility model provides a kind of photovoltaic energy storage air-conditioning device, including: photovoltaic power generation apparatus 11, energy storage device 12, air conditioning unit 10 and energy dispatching managing device 15.Photovoltaic power generation apparatus 11, energy storage device 12 and public electric wire net 13 are connected with air conditioning unit 10 respectively, are used for powering.Photovoltaic power generation apparatus 11, public electric wire net 13 are connected with energy storage device 12 respectively, are used for charging.Photovoltaic power generation apparatus 12 is additionally operable to the grid-connected power supply of public electric wire net 13.
Energy dispatching managing device 15 includes: detection module 151 and scheduler module 152.Detection module 151 detects powering quantity and the duty of running state of air conditioner, photovoltaic power generation apparatus and energy storage device.Scheduler module 152 is according to running state of air conditioner, powering quantity and duty, and the power supply priority and the electricity consumption two priority classes that set are powered or charge, or power supply and charging are carried out simultaneously.
Photovoltaic power generation apparatus 11, energy storage device 12 and public electric wire net 13 as air conditioning unit 10 three power supplies, scheduler module 152 is according to running state of air conditioner, the powering quantity of each power supply and duty, and power supply priority and electricity consumption priority determine one or several power source combination in three power supplies, as reality to air conditioning unit 10 power supply, and determine that one or all in photovoltaic power generation apparatus 11, public electric wire net 13 is charged for energy storage device 12, and determine power supply and the opportunity of charging.Public electric wire net 13 of the present utility model can be municipal administration electrical network etc..
Can be real-time between photovoltaic power generation apparatus 11, energy storage device 12, air conditioning unit 10 and municipal administration electrical network carry out polynary energy reversal flowing, determine power supply priority, preferential use photovoltaic electric energy, next to that energy storage electric energy, last municipal electric energy.Determining electricity consumption priority, preferentially meet air-conditioning during operation of air conditioner, next meets energy storage, finally meets and generates electricity to municipal administration.
Owing to being configured with photovoltaic generation and two kinds of power-supplying forms of energy storage, the off-network that photovoltaic energy storage air-conditioning device in above-described embodiment may be implemented under municipal administration power-down conditions is run, energy storage device 12 utilizes the surplus of energy afterflow charging automatically in real time in running, and photovoltaic power generation apparatus 11 can be generated electricity, energy storage device 12 discharge and recharge, air conditioning electricity state carry out real-time tracking, the switching at runtime time for electric flux can be less than 10ms.
Photovoltaic power generation apparatus can have multiple, such as, as in figure 2 it is shown, photovoltaic power generation apparatus includes: photovoltaic array 111, inverter 114, switching device 113 and electric energy meter 112.Photovoltaic array 111 is sequentially connected with switching device 113, inverter 114, inverter 114 and public electric wire net 13 and connects, and switching device 113 is connected with air conditioning unit 10.Electric energy meter 112 it is provided with on line between photovoltaic array 111 and switching device 113.
Detection module 151 is connected with electric energy meter 112, obtains the generating electricity of photovoltaic array 111.Scheduler module 152 is connected with switching device 113 and inverter 114, controls photovoltaic array 111 and powers for air conditioning unit 10 or public electric wire net 13, it is also possible to powers for air conditioning unit 10 and public electric wire net 13 simultaneously.In one embodiment, switching device 113 can also be not provided with, the electric energy of photovoltaic array 111 is sent to air conditioning unit by inverter 114, the circuit realiration of air conditioning unit inside the electric energy of photovoltaic array 111 is sent to public electric wire net 13, thus realizes grid-connected power supply.
The electric energy of photovoltaic array 111 can be linked in public electric wire net 13 by inverter 114, and the unidirectional current that photovoltaic array 111 exports can be converted to the alternating current of 220 or 380 volts by inverter 114.It can be to be detected by electric energy meter 112 or metering module that photovoltaic array 111 is generated electricity, and air-conditioning, as need for electricity side, can produce need for electricity according to load condition, by DC/AC module and energy dispatching management information system, and preferential use photovoltaic electric energy.
The unidirectional current of photovoltaic array 111 output can be linked on the dc bus between inverter 101 and inverter 102, it is also possible to is converted to alternating current by inverter 114 and accesses inverter 101 or inverter 102.Photovoltaic generation is one of supplier of electricity, if air conditioning electricity demand can be met, the most all by photovoltaic power supply, if air conditioning electricity demand can not be met, then surveys scheduling electric energy for air-conditioning from other energy.
Energy storage device includes: energy-storage battery group 121 and battery energy management module 122, and battery energy management module 122 is connected with energy-storage battery group 121.Detection module 151 and scheduler module 152 are connected with battery energy management module 122 respectively, detection module 151 obtains the information such as the electricity of energy-storage battery group 121 by battery energy management module, scheduler module 152 controls the duty of energy-storage battery group 121 by battery energy management module 122, such as, charge, discharge, quit work.Energy storage device carries out electric power detection by battery energy management module 122, and controls discharge and recharge action and the degree of depth of energy storage device.
The running status of photovoltaic power generation apparatus and energy storage device can be detected by energy dispatching managing device 15.Photovoltaic power generation apparatus is unidirectional power supply energy, as long as illumination condition meets power generation requirements, photovoltaic power generation apparatus will externally generate electricity, and stops generating when photovoltaic condition is unsatisfactory for power generation requirements, and photovoltaic power generation apparatus running status is excited by illumination condition.Energy storage device by battery energy management module control work or does not works, and the duty of energy storage device is divided into charging, electric discharge two kinds.
Energy storage device can also include: DC converter 123, and energy-storage battery group 121 is connected with public electric wire net 13 by DC converter 123.Such as, energy-storage battery group 121 can be lithium battery group, needs to carry out direct current supply, and photovoltaic array 111 produces unidirectional current and directly can charge energy-storage battery group 121, it is also possible to powered energy-storage battery group 121 by DC converter, fairing etc..Energy-storage battery group 121 is powered by public electric wire net 13 by DC converter 123, the unidirectional current generating low-voltage.
Public electric wire net 13 is connected with air conditioning unit 10 by switching device 14, and scheduler module 152 is connected with switching device 14.Scheduler module 152 can control public electric wire net 13 by the opening and closing of control switching device 14 and be powered air conditioning unit.Multiple power supplys and air conditioning unit between confession electrical wiring on switching device can also be set, control multiple power supply and be powered air conditioning unit.
Air conditioning unit include: controller 103.Controller 103 obtains running state of air conditioner.Air conditioning unit controller 103 own can detect air conditioning unit running status, comprises a complete set of state such as electrical quantity and refrigeration duty parameter.Energy dispatching management module 15 also can detect running state of air conditioner, mainly need for electricity state in real time.
Photovoltaic energy storage air-conditioning device in above-described embodiment, photovoltaic power generation apparatus, energy storage device, municipal public electric wire net are linked into air-conditioning and form photovoltaic energy storage air-conditioning device, by formulating multiple-energy-source coordinated operation strategy, determine power supply priority, preferential use photovoltaic electric energy, next to that energy storage electric energy, last municipal electric energy；Determining electricity consumption priority, preferentially meet air-conditioning during operation of air conditioner, next meets energy storage, finally meets and generates electricity to municipal administration.
Photovoltaic energy storage air-conditioning device in above-described embodiment, adjusting photovoltaic energy storage air-conditioning device makes work in different modes with photovoltaic generation, energy storage electric power storage, the different situations of air conditioning electricity, realize the adaptability multi-mode operation of photovoltaic energy storage air-conditioning device, even if running state of air conditioner also can be maintained under the extreme emergency situations of photovoltaic array electricity shortage and experience grid power blackout, the off-network that even can realize photovoltaic energy storage air-conditioning device is run, and operation benefit maximizes.
Scheduler module 152 is followed successively by photovoltaic power generation apparatus 11, energy storage device 12 and public electric wire net 13 according to the power supply that order selects from high to low of power supply priority.It is followed successively by air conditioning unit, energy storage device 12 and and public electric wire net according to the equipment that order is powered from high to low of electricity consumption priority.
In one embodiment, scheduler module 152 can be according to real photovoltaic generation, energy storage electric power storage and the practical situation of air conditioning electricity, under current energy state, it is best suitable for mode of operation according to the power supply real-time switchover operation of priority, have 12 kinds of mode of operations, if Fig. 3 is to shown in 14, it is ensured that the most effective utilization of the energy and the reliable and stable operation of photovoltaic energy storage air-conditioning device.
When scheduler module 152 judges that the generated energy of photovoltaic power generation apparatus 11 is identical with the electricity needed for air conditioning unit 10 operations, then control the power supplys for air conditioning unit 10 power supplies and be only photovoltaic power generation apparatus 11.This is mode of operation 1, as it is shown on figure 3, when photovoltaic power generation apparatus 11 electricity can be just met for multi-connection operation, photovoltaic power generation apparatus 11 generating directly feed air conditioning unit 10 electricity consumptions.
When scheduler module 152 judges the electricity deficiency of air conditioning unit 10 off-duties and energy storage device 12, then control photovoltaic power generation apparatus 11 and charge for energy storage device 12.This is mode of operation two, as shown in Figure 4, when air conditioning unit 10 not running, energy storage device 12 electricity deficiency time, photovoltaic power generation apparatus 11 system is charged to energy storage device.
When scheduler module 152 judges the electricity abundance of air conditioning unit 10 off-duties and energy storage device 12 or do not works, then control photovoltaic power generation apparatus 11 to the grid-connected power supply of public electric wire net 13.This is mode of operation three, as shown in Figure 5: when air conditioning unit 10 not running, time energy storage device 12 electricity is sufficient or does not works, photovoltaic power generation apparatus 11 electricity is the most grid-connected.
When scheduler module 152 judges that photovoltaic power generation apparatus 11 does not generates electricity and during the electricity abundance of energy storage device 12, then control energy storage device 12 and drive air conditioning unit 10 to run.This is mode of operation four: as shown in Figure 6, when photovoltaic power generation apparatus 11 do not generate electricity, the electricity of energy storage device 12 sufficient, now given air conditioning unit 10 power supplies by energy storage device 12, drive train is run.
Do not generate electricity when scheduler module 152 judges photovoltaic power generation apparatus 11, air conditioning unit 10 off-duties and during energy storage device 12 electricity deficiency, then control public electric wire net 13 and charge for energy storage device 12.This is mode of operation five: as it is shown in fig. 7, when photovoltaic power generation apparatus 11 do not generate electricity, air conditioning unit 10 do not run, energy storage device 12 electricity deficiency time, public electric wire net 13 charge to energy storage device 12.
When scheduler module 152 judges that photovoltaic power generation apparatus 11 does not generates electricity and during the electricity deficiency of energy storage device 12, then control public electric wire net 13 and drive air conditioning unit 10 to run, and control public electric wire net 10 and charge for energy storage device 12.This is mode of operation six: as shown in Figure 8, when photovoltaic power generation apparatus 11 do not generate electricity, energy storage device 12 electricity deficiency time, by public electric wire net 13 drive air conditioning unit 10 run, simultaneously give energy storage device 12 charge.
When scheduler module 152 judges the electricity deficiency that the generated energy of photovoltaic power generation apparatus 11 is more than the electricity needed for air conditioning unit 10 operations and energy storage device 12, then controlling photovoltaic power generation apparatus 11 is air conditioning unit 10 power supplies, and controls photovoltaic power generation apparatus 11 for energy storage device charging.This is mode of operation seven: as it is shown in figure 9, when also surplus, energy storage device 12 electricity deficiency after photovoltaic power generation apparatus 11 electricity runs for air conditioning unit 10, now photovoltaic generation charges preferentially to energy storage device 12.
When scheduler module 152 judges the electricity needed for the generated energy of photovoltaic power generation apparatus 11 runs more than air conditioning unit 10 and the abundance of energy storage device 12 electricity or does not works, then controlling photovoltaic power generation apparatus 11 is air conditioning unit 10 power supplies, and controls photovoltaic power generation apparatus 11 to the grid-connected power supply of public electric wire net 13.This is mode of operation eight: as shown in Figure 10, and when when also surplus after photovoltaic power generation apparatus 11 electricity runs for air conditioning unit 10, energy storage device 12 electricity abundance or not working, the most unnecessary electricity is to public grid-connected power supply.
When scheduler module 152 judges the electricity deficiency that the generated energy of photovoltaic power generation apparatus 11 is less than the electricity needed for air conditioning unit 10 operations and energy storage device 12, then control photovoltaic power generation apparatus 11 with public electric wire net 13 jointly to air conditioning unit 10 power supplies, and control public electric wire net 13 and charge for energy storage device 12.This is mode of operation nine: as shown in figure 11, and when photovoltaic power generation apparatus 11 generation deficiency is for air conditioning unit 10 operations, energy storage device 12 electricity also deficiency, insufficient section is provided by public electric wire net 13, powers to energy storage device 12 simultaneously.
When scheduler module 152 judges the electricity abundance that the generated energy of photovoltaic power generation apparatus 11 is less than the electricity needed for air conditioning unit 10 operations and energy storage device 12, then control photovoltaic power generation apparatus 11 common with energy storage device 12 to air conditioning unit power supply.This is mode of operation ten: as shown in figure 12, and when photovoltaic power generation apparatus 11 generation deficiency is for air conditioning unit 10 operations, energy storage device electricity 12 abundance, insufficient section is powered by energy storage device 12.
When the generated energy that scheduler module 152 judges photovoltaic power generation apparatus 11 does not works less than the electricity needed for air conditioning unit 10 operations and energy storage device 12, then control photovoltaic power generation apparatus 11 with public electric wire net 13 jointly to air conditioning unit 10 power supplies.This is mode of operation 11: as shown in figure 13, when energy storage device 12 do not work, photovoltaic power generation apparatus 11 generation deficiency for air conditioning unit 10 run time, insufficient section is by public electric wire net 13 supplementary power.
When scheduler module 152 judges that photovoltaic power generation apparatus 11 does not generates electricity and energy storage device 12 does not works, then control public electric wire net 13 to air conditioning unit 10 power supplies.This is mode of operation 12: when energy storage device 12 do not work, photovoltaic power generation apparatus 11 do not generate electricity time, public electric wire net 13 is powered directly to multi-connected machine.
Photovoltaic energy storage air-conditioning plant running of the present utility model in pattern for the moment, for pure PV air-conditioner pattern, it is achieved generating power for their own use, supply and demand is equal；During the pattern two of operating in, air-conditioning device self storage electric energy, reduce the loss that inversion online produces, storage electric energy, as the system reserve energy, increases reliability；During the pattern three of operating in, when air-conditioning device self cannot be included more multi-energy in and have allowance, photovoltaic power generation apparatus is grid-connected, it is achieved generating is not wasted, solar photovoltaic utilization maximizes.During the pattern four of operating in, air conditioning unit directly utilize system self energy storage, it is not necessary to online power taking, air-conditioning device has certain self-supporting capability；During the pattern five of operating in, public electric wire net charges a battery, it is ensured that the air-conditioning device stand-by power source moment is sufficient, promotes the ability of reply emergency situations.
Photovoltaic energy storage air-conditioning plant running of the present utility model is when pattern six, and photovoltaic array cannot meet loading demand, and air-conditioning device also can be unaffected properly functioning；During the pattern seven of operating in, except meeting self need for electricity, the direct stand-by power source of unnecessary electricity, it is to avoid because of the electric energy transition loss of grid-connected generation；During the pattern eight of operating in, air-conditioning device meets can also externally exert oneself outside self-demand, improves system benefit；During the pattern nine of operating in, maintenance work also and air-conditioning device can be carried out supplement energy storage standby；During the pattern ten of operating in, photoelectricity is not enough, and air-conditioning device also can be reached self-sufficiency；Operating in pattern ten for the moment, a small amount of photovoltaic power generation apparatus generating also can make full use of, and the most also ensures that air-conditioning device is properly functioning；When operating in pattern 12, photovoltaic power generation apparatus and energy-storage module paralyse and nor affect on the use of air-conditioning device.
Photovoltaic energy storage air-conditioning device of the present utility model can run under above 12 kinds of patterns, either alternatively or simultaneously work between many power supplys, realize preferentially taking electricity in the case of different hair electricity, both ensure that the utilization of cleaning photovoltaic energy maximized, the properly functioning of air-conditioning device can be made again to be protected.12 kinds of mode of operations can switch in real time, it is ensured that the most effective utilization of the energy and the reliable and stable operation of photovoltaic energy storage air conditioning system.
Figure 15 is the schematic flow sheet of an embodiment of the control method according to photovoltaic energy storage air-conditioning device of the present utility model, as shown in figure 15:
Step 301, detection running state of air conditioner, photovoltaic power generation apparatus and the powering quantity of energy storage device and duty.
Step 302, according to running state of air conditioner, powering quantity and duty, and the power supply priority and the electricity consumption two priority classes that set are powered and/or charge.
It is followed successively by photovoltaic power generation apparatus, energy storage device and public electric wire net according to the power supply that order selects from high to low of power supply priority；Wherein, it is followed successively by air conditioning unit, energy storage device and and public electric wire net according to the equipment that order is powered from high to low of electricity consumption priority.
In one embodiment, when the generated energy judging photovoltaic power generation apparatus is identical with the electricity needed for air conditioning unit operation, then control the power supply for air conditioning unit power supply and be only photovoltaic power generation apparatus；When judging the electricity deficiency of air conditioning unit off-duty and energy storage device, then controlling photovoltaic power generation apparatus is energy storage device charging；When the electricity judging air conditioning unit off-duty and energy storage device is sufficient or does not works, then control photovoltaic power generation apparatus to the grid-connected power supply of public electric wire net.
When judging that photovoltaic power generation apparatus does not generates electricity and during the electricity abundance of energy storage device, then control energy storage device and drive air conditioning unit operation；When judge photovoltaic power generation apparatus do not generate electricity, air conditioning unit off-duty and during energy storage device electricity deficiency, then controlling public electric wire net is energy storage device charging；When judging that photovoltaic power generation apparatus does not generates electricity and during the electricity deficiency of energy storage device, then control public electric wire net and drive air conditioning unit operation, and to control public electric wire net be energy storage device charging.
When the electricity deficiency of the electricity judged needed for the generated energy of photovoltaic power generation apparatus is more than air conditioning unit operation and energy storage device, then controlling photovoltaic power generation apparatus is air conditioning unit power supply, and to control photovoltaic power generation apparatus be energy storage device charging；When the electricity judged needed for the generated energy of photovoltaic power generation apparatus is more than air conditioning unit operation and the abundance of energy storage device electricity or not working, then controlling photovoltaic power generation apparatus is air conditioning unit power supply, and controls photovoltaic power generation apparatus to the grid-connected power supply of public electric wire net；When the electricity deficiency of the electricity judged needed for the generated energy of photovoltaic power generation apparatus is less than air conditioning unit operation and energy storage device, then control photovoltaic power generation apparatus with public electric wire net jointly to air conditioning unit power supply, and to control public electric wire net be energy storage device charging.
When the generated energy judging photovoltaic power generation apparatus is less than the electricity abundance of the electricity needed for air conditioning unit operation and energy storage device, then control photovoltaic power generation apparatus with energy storage device jointly to air conditioning unit power supply；When the electricity judged needed for the generated energy of photovoltaic power generation apparatus is less than air conditioning unit operation and energy storage device do not work, then control photovoltaic power generation apparatus with public electric wire net jointly to air conditioning unit power supply；When judging that photovoltaic power generation apparatus does not generates electricity and energy storage device does not works, then control public electric wire net to air conditioning unit power supply.
The photovoltaic energy storage air-conditioning device provided in above-described embodiment, according to actual power, storage electricity from the change of electricity consumption situation and operate under different mode of operations, realize multi-operation mode real time execution, reduce Changes in weather, battery power storage amount, operation of power networks state to properly functioning impact, improve Stability and dependability, and photovoltaic generation consumption is not wasted, the life of storage battery is affected by discharge and recharge to diminish, it is achieved System benefits maximizes.
Method and system of the present utility model may be achieved in many ways.Such as, method and system of the present utility model can be realized by software, hardware, firmware or software, hardware, any combination of firmware.For the said sequence of step of method merely to illustrate, the step of method of the present utility model is not limited to order described in detail above, unless specifically stated otherwise.Additionally, in certain embodiments, this utility model also can be embodied as the program recorded in the recording medium, these programs include for realizing the machine readable instructions according to method of the present utility model.Thus, this utility model also covers the record medium stored for performing the program according to method of the present utility model.
Description of the present utility model is given for the sake of example and description, and is not exhaustively or this utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and actual application are more preferably described, and makes those of ordinary skill in the art it will be appreciated that this utility model thus design are suitable to the various embodiments with various amendments of special-purpose.
Claims (6)
1. a photovoltaic energy storage air-conditioning device, it is characterised in that, including:
Photovoltaic power generation apparatus, energy storage device, air conditioning unit and energy dispatching managing device；
Described photovoltaic power generation apparatus, described energy storage device and public electric wire net air conditioning unit are connected with described respectively, are used for powering；Described photovoltaic power generation apparatus, described public electric wire net are connected with described energy storage device respectively, are used for charging；Described photovoltaic power generation apparatus is additionally operable to the grid-connected power supply of described public electric wire net；
Described energy dispatching managing device includes:
Detection module, with described photovoltaic power generation apparatus, described energy storage device, described air conditioning unit be connected, for detecting running state of air conditioner, described photovoltaic power generation apparatus and the powering quantity of described energy storage device and duty；
Scheduler module, is connected with described photovoltaic power generation apparatus, described energy storage device, described public electric wire net, is used for according to described running state of air conditioner, described powering quantity and duty, and the power supply priority and the electricity consumption two priority classes that set are powered and/or charge.
2. photovoltaic energy storage air-conditioning device as claimed in claim 1, it is characterised in that:
Described photovoltaic power generation apparatus includes: photovoltaic array, inverter, switching device and electric energy meter；Described photovoltaic array is sequentially connected with described switching device, described inverter；Described inverter and described public electric wire net connect；Described switching device air conditioning unit is connected with described；Described electric energy meter it is provided with on line between described photovoltaic array and described switching device；
Described detection module is connected with described electric energy meter, obtains the generating electricity of described photovoltaic array；Described scheduler module is connected with described switching device and described inverter, and controlling described photovoltaic array is that described air conditioning unit and/or described public electric wire net is powered.
3. photovoltaic energy storage air-conditioning device as claimed in claim 1, it is characterised in that:
Described energy storage device includes: energy-storage battery group and battery energy management module；
Described battery energy management module is connected with described energy-storage battery group；Described detection module and described scheduler module are connected with described battery energy management module respectively, described detection module obtains the electricity of described energy-storage battery group by described battery energy management module, and described scheduler module controls the duty of described energy-storage battery group by described battery energy management module.
4. photovoltaic energy storage air-conditioning device as claimed in claim 3, it is characterised in that:
Described energy storage device also includes: DC converter；
Described energy-storage battery group is connected with described public electric wire net by described DC converter.
5. photovoltaic energy storage air-conditioning device as claimed in claim 1, it is characterised in that:
Described public electric wire net air conditioning unit is connected with described by switching device；Described scheduler module is connected with described switching device.
6. photovoltaic energy storage air-conditioning device as claimed in claim 1, it is characterised in that:
Described air conditioning unit include: controller；
Described controller is connected with described detection module, is used for obtaining running state of air conditioner.
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| CN201620110632.8U CN205489759U (en) | 2016-02-03 | 2016-02-03 | Photovoltaic energy storage air conditioning device |
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| CN201620110632.8U CN205489759U (en) | 2016-02-03 | 2016-02-03 | Photovoltaic energy storage air conditioning device |
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