CN208015378U - Distribution type photovoltaic energy storage system and solar photovoltaic generation system - Google Patents
Distribution type photovoltaic energy storage system and solar photovoltaic generation system Download PDFInfo
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- CN208015378U CN208015378U CN201820083859.7U CN201820083859U CN208015378U CN 208015378 U CN208015378 U CN 208015378U CN 201820083859 U CN201820083859 U CN 201820083859U CN 208015378 U CN208015378 U CN 208015378U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a kind of distribution type photovoltaic energy storage system and solar photovoltaic generation system, it is related to photovoltaic plant building structure technology field, including energy storage device, generating monitoring device, parallel control device, energy storage monitoring device, control device, communication bus and two-way inverter, it is fully used by the energy storage device amount of making it possible to, it can be adjusted according to the different loads state of user, the case where avoiding waste, the distribution type photovoltaic energy storage system can be by photovoltaic power generation apparatus, energy storage device and grid-connection device are monitored together, the power crest value of photovoltaic power generation apparatus is known in time, and as the power of information source dynamic regulation energy storage device, to smooth grid-connected electrical power, realize the economical operation of distribution type photovoltaic energy storage system.
Description
Technical field
The utility model is related to photovoltaic plant building structure technology fields, more particularly, to a kind of distributed photovoltaic energy storage system
System and solar photovoltaic generation system.
Background technology
Photovoltaic distributed power generation be it is a kind of it is novel, tool it is with broad prospects for development power generation and comprehensive utilization of energy mode,
It is advocated generates electricity nearby, grid-connected nearby, converts nearby, and the principle used nearby can not only effectively improve same size photovoltaic
The generated energy in power station, while also efficiently solving the problems, such as loss of the electric power in boosting and long-distance transport.In addition, the distribution on roof
Formula power generation is not taken up an area not only, but also can directly feed the people in building, machine and equipment.With the continuous increasing of electricity needs
Greatly, the continuous reduction of traditional energy, traditional electricity price will necessarily rise height.Therefore distributed photovoltaic power generation is necessarily come into the near future
Huge numbers of families.The large-scale application of distributed generation system will bring operation of power networks, control and electricity market etc. new opportunity
And challenge.
Distributed photovoltaic energy-accumulating power station is typically by solar panel, solar controller, accumulator, battery management system
The compositions such as system, inverter/charger, photovoltaic combining inverter are the electric energy for generating solar panel, or are directly converted
At alternating current, feed-in power grid；Or be stored into accumulator, then by inverter/charger be discharged into load or (and) feed-in
Power grid.
Existing distributed photovoltaic system or energy-storage system, one is bases directly will too by photovoltaic combining inverter
Positive energy solar panel is connect with power grid, and load is connected with power grid.This system there is a problem of it is serious, first, in the feelings of grid cut-off
Under condition, load can not normal electricity consumption；Second is that when power grid is normal, when photovoltaic combining inverter is not by dispatching of power netwoks, when the system
It is able to large-scale application, then the energy of feed-in power grid is possible to very big, this can cause power grid security and stabilization certain
It threatens.Another kind is to adjust the energy-storage system of photovoltaic energy by the way that accumulator is added, and this system can solve grid cut-off
In the case of load electrical problem, but when equally existing large-scale application, system not electric network security caused by scheduled
It is threatened with stability.
Utility model content
The purpose of this utility model is to provide a kind of distribution type photovoltaic energy storage system, which exists
During use, photovoltaic can be known in time by being monitored together to photovoltaic power generation apparatus, energy storage device and grid-connection device
The power crest value of power generator, and as the power of information source dynamic regulation energy storage device, to smooth grid-connected electric work
Rate realizes the economical operation of distribution type photovoltaic energy storage system.
To realize that the purpose of this utility model adopts the following technical scheme that.
Distribution type photovoltaic energy storage system provided by the utility model, including energy storage device, generating monitoring device, parallel control
Device, energy storage monitoring device, control device, communication bus and two-way inverter；
The energy storage device is used for storage energy, and the output power when photovoltaic energy storage electric station grid connection is run；
The generating monitoring device for monitoring photovoltaic power generation apparatus in real time, and to the generated output of photovoltaic power generation apparatus into
Row prediction；
The parallel control device is used to control photovoltaic energy storage for detecting photovoltaic energy storage power station grid connection point alternating voltage
It is incorporated into the power networks via grid-connecting apparatus in power station；
The energy storage monitoring device is used to monitor in real time the power attenuation situation of energy storage device, and controls the fortune of energy storage device
Row；
The control device is used to determine the operation method in photovoltaic energy storage power station, and to the generating monitoring device, described
Grid-connecting apparatus and the energy storage monitoring device send out operation method described in instruction executed；
The two-way inverter is for realizing the Power Exchange between photovoltaic power generation apparatus, the energy storage device and power grid；
The communication bus is for connecting the energy storage device, the generating monitoring device, the parallel control device, institute
State energy storage monitoring device, the control device and the two-way inverter.
In any of the above-described technical solution, it is preferred that the energy storage device includes multiple accumulator groups, ultracapacitor group
And protection location；
The accumulator group, the ultracapacitor group are connected with the protection location；
The accumulator group and the ultracapacitor group are connected with the two-way inverter respectively；
The protection location is connected with the accumulator group and the two-way inverter for detecting accumulator group respectively
Operating status, and accumulator group is managed and is protected according to monitoring data.
In any of the above-described technical solution, it is preferred that the two-way inverter includes the first DC/DC inverters, second
DC/DC inverters and DC/AC inverters；
The first DC/DC inverters and the 2nd DC/DC inverters are connected with photovoltaic power generation apparatus respectively；
The DC/AC inverters are bi-directionally connected with the power grid, the DC/AC inverters with load unidirectionally connect with to bear
Carry transmission electric energy；
The first DC/DC inverters are unidirectionally connect with the DC/AC inverters with by the electricity of the photovoltaic power generation apparatus
It can be connected to the grid or be supplied to load；
The 2nd DC/DC inverters are connected respectively with the DC/AC inverters and the accumulator group with will be described
The electric energy of photovoltaic power generation apparatus and power grid inputs the accumulator group or the electric energy of the accumulator group is supplied to load.
In any of the above-described technical solution, it is preferred that each described accumulator group includes several polymer batteries；
It is serially connected between several polymer batteries and/or in parallel.
In any of the above-described technical solution, it is preferred that further include first switch, second switch and third switch；
The first switch is connected with the photovoltaic power generation apparatus；
The second switch is connected with the ultracapacitor group and the energy storage device respectively；
The third switch is connected with the energy storage device and the two-way inverter respectively.
In any of the above-described technical solution, it is preferred that further include control system, the control system is used for switch operating shape
State；
The control system includes first switch controller, second switch controller and third switch controller；
The first switch controller is used to test the voltage and current of the photovoltaic power generation apparatus；
The second switch controller is used to test the voltage and current of the ultracapacitor group；
The third switch controller is used to test the voltage and current of the accumulator group.
In any of the above-described technical solution, it is preferred that the first switch is connected use with the first switch controller
In the opening and closing for controlling the first switch controller；
The second switch is connected with the second switch controller for controlling opening for the second switch controller
It closes；
The third switch is connected with the third switch controller for controlling opening for the third switch controller
It closes.
In any of the above-described technical solution, it is preferred that the first switch controller, the second switch controller and institute
Third switch controller is stated to be connected to each other by communication bus.
In any of the above-described technical solution, it is preferred that further include temperature sensor；
The temperature sensor is set on the photovoltaic power generation apparatus, and the temperature sensor is controlled with third switch
Device processed is connected.
The utility model provides a kind of distribution type photovoltaic energy storage system, including energy storage device, generating monitoring device, grid-connected
Monitoring device, energy storage monitoring device, control device, communication bus and two-way inverter make it possible to measure by energy storage device
The case where making full use of, being adjusted according to the different loads state of user, avoid waste, the distributed photovoltaic energy storage system
System can know photovoltaic power generation apparatus in time by being monitored together to photovoltaic power generation apparatus, energy storage device and grid-connection device
Power crest value, and as the power of information source dynamic regulation energy storage device distribution is realized to smooth grid-connected electrical power
The economical operation of formula photovoltaic energy storage system.
The utility model additionally provides provided in a kind of solar photovoltaic generation system, including any of the above-described technical solution
Distribution type photovoltaic energy storage system, and solar photovoltaic generation system is identical as the advantageous effect of distribution type photovoltaic energy storage system.
The additional aspect and advantage of the utility model will become apparent in following description section, or new by this practicality
The practice of type is recognized.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic diagram of distribution type photovoltaic energy storage system provided by the utility model；
Fig. 2 is the schematic diagram of distribution type photovoltaic energy storage system shown in FIG. 1；
Fig. 3 is the schematic diagram of distribution type photovoltaic energy storage system shown in FIG. 1；
Fig. 4 is the schematic diagram of distribution type photovoltaic energy storage system shown in FIG. 1.
Icon：1- energy storage devices；2- generating monitoring devices；3- parallel control devices；4- energy storage monitoring devices；Dress is controlled in 5-
It sets；6- communication bus；The two-way inverters of 7-；8- is loaded；9- power grids；10- photovoltaic power generation apparatus；11- grid-connecting apparatus；12- temperature
Sensor；101- accumulator groups；102- ultracapacitor groups；103- protection locations；104- first switches；105- second switches；
106- thirds switch；107- first switch controllers；108- second switch controllers；109- third switch controllers；701-
One DC/DC inverters；The 2nd DC/DC inverters of 702-；703-DC/AC inverters.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Embodiment one
As shown in Figures 1 to 4, the utility model provides a kind of distribution type photovoltaic energy storage system, including energy storage device 1,
Generating monitoring device 2, parallel control device 3, energy storage monitoring device 4, control device 5, communication bus 6 and two-way inverter 7；
The energy storage device 1 is used for storage energy, and the output power when photovoltaic energy storage electric station grid connection is run；
The generating monitoring device 2 is used to monitor photovoltaic power generation apparatus 10 in real time, and to the power generation of photovoltaic power generation apparatus 10
Power is predicted；
The parallel control device 3 is stored up for detecting photovoltaic energy storage power station grid connection point alternating voltage, and for controlling photovoltaic
It is incorporated into the power networks via grid-connecting apparatus 11 in energy power station；
The energy storage monitoring device 4 is used to monitor in real time the power attenuation situation of energy storage device 1, and controls energy storage device 1
Operation；
The control device 5 is used to determine the operation method in photovoltaic energy storage power station, and to the generating monitoring device 2, institute
It states grid-connecting apparatus 11 and the energy storage monitoring device 4 sends out operation method described in instruction executed；
The two-way inverter 7 is for realizing the power between photovoltaic power generation apparatus 10, the energy storage device 1 and power grid 9
It exchanges；
The communication bus 6 is for connecting the energy storage device 1, the generating monitoring device 2, the parallel control device
3, the energy storage monitoring device 4, the control device 5 and the two-way inverter 7.
The utility model provides a kind of distribution type photovoltaic energy storage system, including energy storage device 1, generating monitoring device 2, simultaneously
Net monitoring device 3, energy storage monitoring device 4, control device 5, communication bus 6 and two-way inverter 7 are made by energy storage device 1
Energy is fully used, the case where being adjusted according to 8 state of different loads of user, avoid waste, the distribution
Photovoltaic energy storage system can know light in time by being monitored together to photovoltaic power generation apparatus 10, energy storage device 1 and grid-connection device
The power crest value of power generator 10 is lied prostrate, and as the power of information source dynamic regulation energy storage device 1, to smooth grid-connected
Electrical power realizes the economical operation of distribution type photovoltaic energy storage system.
As shown in Figures 1 to 4, in the embodiments of the present invention one, it is preferred that the energy storage device 1 includes multiple
Accumulator group 101, ultracapacitor group 102 and protection location 103；
The accumulator group 101, the ultracapacitor group 102 are connected with the protection location 103；
The accumulator group 101 and the ultracapacitor group 102 are connected with the two-way inverter 7 respectively；
The protection location 103 is connected with the accumulator group 101 and the two-way inverter 7 for detecting respectively
The operating status of accumulator group 101, and accumulator group 101 is managed and is protected according to monitoring data.
In this embodiment, energy storage device 1 uses multiple accumulator groups 101, ultracapacitor group 102 to be used in mixed way to reach
To the purpose of storage electric energy, electric energy is converted into from solar energy and is first charged to super capacitor, stored after certain light again by super
Capacitance charges to accumulator group 101, using ultracapacitor as transfer, plays the role of energy snubber, can not only assist
The harmonic component in control system is helped, the generated energy caused by system protection can be reduced with the voltage fluctuation in regulating system
It reduces, could only charge to accumulator group 101 after the reserve of electricity of ultracapacitor is enough, avoid fluctuation voltage
Imperfect charging greatly improves the efficiency for charge-discharge of accumulator group 101, makes the economical more obvious of energy storage, which
So that the advantage of battery energy storage and the advantage of ultracapacitor energy storage are complementary to one another, energy storage device 1 is enable to meet large capacity electric energy
The demand handled up while can meet Rush Hour power the needs of handling up.
As shown in Figures 1 to 4, in the embodiments of the present invention one, it is preferred that the two-way inverter 7 includes the
One DC/DC inverters 701, the 2nd DC/DC inverters 702 and DC/AC inverters 703；
The first DC/DC inverters 701 and the 2nd DC/DC inverters 702 respectively with 10 phase of photovoltaic power generation apparatus
Connection；
The DC/AC inverters 703 are bi-directionally connected with the power grid 9, and the DC/AC inverters 703 unidirectionally connect with load 8
It connects to transmit electric energy to load 8；
The first DC/DC inverters 701 are unidirectionally connect to fill the photovoltaic generation with the DC/AC inverters 703
10 electric energy is set to be connected to the grid and 9 or be supplied to load 8；
The 2nd DC/DC inverters 702 are connected with the DC/AC inverters 703 and the accumulator group 101 respectively
The electric energy of the photovoltaic power generation apparatus 10 and power grid 9 is inputted the accumulator group 101 or by the electricity of the accumulator group 101
Load 8 can be supplied to.
In this embodiment, pass through the first DC/DC inverters 701, the 2nd DC/DC inverters 702 and DC/AC inverters
703, it realizes and the electric energy 9, power grid 9 that is connected to the grid charges to accumulator group 101, accumulator is negative to off-networks such as electronic equipments
Carry the multiple-working modes such as 8 power supplies.
As shown in Figures 1 to 4, in the embodiments of the present invention one, it is preferred that each described accumulator group 101
Including several polymer batteries；
It is serially connected between several polymer batteries and/or in parallel.
In this embodiment, polymer battery is with energy density height, smallerization, ultrathin, lightweight, and
A variety of clear superiorities such as high security are a kind of novel batteries, and in shape, lithium polymer battery has ultrathin feature, can
To coordinate the needs of various products, it is fabricated to the battery of any shape and capacity.
As shown in Figures 1 to 4, in the embodiments of the present invention one, it is preferred that further include first switch 104, second
Switch 105 and third switch 106；
The first switch 104 is connected with the photovoltaic power generation apparatus 10；
The second switch 105 is connected with the ultracapacitor group 102 and the energy storage device 1 respectively；
The third switch 106 is connected with the energy storage device 1 and the two-way inverter 7 respectively.
Further, further include control system, the control system is used for switch operating state；
The control system includes first switch controller 107, second switch controller 108 and third switch controller
109；
The first switch controller 107 is used to test the voltage and current of the photovoltaic power generation apparatus 10；
The second switch controller 108 is used to test the voltage and current of the ultracapacitor group 102；
The third switch controller 109 is used to test the voltage and current of the accumulator group 101.
Further, the first switch 104 is connected with the first switch controller 107 for controlling described first
The opening and closing of switch controller 107；
The second switch 105 is connected with the second switch controller 108 for controlling the second switch control
The opening and closing of device 108；
The third switch 106 is connected with the third switch controller 109 for controlling the third switch control
The opening and closing of device 109.
Further, the first switch controller 107, the second switch controller 108 and third switch control
Device 109 processed is connected to each other by communication bus 6.
Further, further include temperature sensor 12；
The temperature sensor 12 is set on the photovoltaic power generation apparatus 10, the temperature sensor 12 and the third
Switch controller 109 is connected.
In this embodiment, when system operation, first switch 104 when voltage fluctuation is larger of first switch controller 107
It is closed, accesses super capacitor, when output current is less, first switch 104 is closed, and accesses super capacitor, non-in output current
When often small and super capacitor energy-storage is less, first switch 104 is closed, and accesses super capacitor, first opens when voltage quickly reduces
104 are closed to disconnect；When voltage high current is zero, second switch 105 is closed, and accesses accumulator, when voltage, lower current is higher,
Second switch 105 disconnects, and third switch controller 109 can select different operating modes, such as time mould according to actual conditions
Formula, voltage mode and current-mode isotype, temperature sensor 12 is used to measure the temperature of photovoltaic power generation apparatus 10, according to measurement
As a result the maximum power voltage value for calculating photovoltaic power generation apparatus 10, to be selected to power generation mode.
The utility model provides a kind of distribution type photovoltaic energy storage system and solar photovoltaic generation system, including energy storage dress
Set 1, generating monitoring device 2, parallel control device 3, energy storage monitoring device 4, control device 5, communication bus 6 and two-way inverter
7, it is fully used by 1 amount of making it possible to of energy storage device, can be adjusted, be avoided according to 8 state of different loads of user
The case where waste, the distribution type photovoltaic energy storage system can be by carrying out photovoltaic power generation apparatus 10, energy storage device 1 and grid-connection device
It monitors together, knows the power crest value of photovoltaic power generation apparatus 10 in time, and as information source dynamic regulation energy storage device 1
Power realizes the economical operation of distribution type photovoltaic energy storage system to smooth grid-connected electrical power.
Embodiment two
The utility model additionally provides provided in a kind of solar photovoltaic generation system, including any of the above-described embodiment
Distribution type photovoltaic energy storage system, and solar photovoltaic generation system is identical as the advantageous effect of distribution type photovoltaic energy storage system,
This is repeated no more.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of distribution type photovoltaic energy storage system, which is characterized in that including energy storage device, generating monitoring device, parallel control dress
It sets, energy storage monitoring device, control device, communication bus and two-way inverter；
The energy storage device is used for storage energy, and the output power when photovoltaic energy storage electric station grid connection is run；
The generating monitoring device carries out the generated output of photovoltaic power generation apparatus pre- for monitoring photovoltaic power generation apparatus in real time
It surveys；
The parallel control device is used to control photovoltaic energy storage power station for detecting photovoltaic energy storage power station grid connection point alternating voltage
It is incorporated into the power networks via grid-connecting apparatus；
The energy storage monitoring device is used to monitor in real time the power attenuation situation of energy storage device, and controls the operation of energy storage device；
The control device is used to determine the operation method in photovoltaic energy storage power station, and to the generating monitoring device, described grid-connected
Device and the energy storage monitoring device send out operation method described in instruction executed；
The two-way inverter is for realizing the Power Exchange between photovoltaic power generation apparatus, the energy storage device and power grid；
The communication bus is for connecting the energy storage device, the generating monitoring device, the parallel control device, the storage
It can monitoring device, the control device and the two-way inverter.
2. distribution type photovoltaic energy storage system according to claim 1, which is characterized in that the energy storage device includes multiple storages
Battery pack, ultracapacitor group and protection location；
The accumulator group, the ultracapacitor group are connected with the protection location；
The accumulator group and the ultracapacitor group are connected with the two-way inverter respectively；
The fortune that the protection location is connected with the accumulator group and the two-way inverter for detecting accumulator group respectively
Row state, and accumulator group is managed and is protected according to monitoring data.
3. distribution type photovoltaic energy storage system according to claim 2, which is characterized in that the two-way inverter includes first
DC/DC inverters, the 2nd DC/DC inverters and DC/AC inverters；
The first DC/DC inverters and the 2nd DC/DC inverters are connected with photovoltaic power generation apparatus respectively；
The DC/AC inverters are bi-directionally connected with the power grid, and the DC/AC inverters are unidirectionally connect with load to be passed to load
Transmission of electricity energy；
The first DC/DC inverters unidirectionally connect with the DC/AC inverters with by the electric energy of the photovoltaic power generation apparatus simultaneously
Enter power grid or is supplied to load；
The 2nd DC/DC inverters are connected respectively with the DC/AC inverters and the accumulator group with by the photovoltaic
The electric energy of power generator and power grid inputs the accumulator group or the electric energy of the accumulator group is supplied to load.
4. distribution type photovoltaic energy storage system according to claim 2, which is characterized in that each described accumulator group includes
Several polymer batteries；
It is serially connected between several polymer batteries and/or in parallel.
5. distribution type photovoltaic energy storage system according to claim 2, which is characterized in that further include first switch, second open
It closes and third switchs；
The first switch is connected with the photovoltaic power generation apparatus；
The second switch is connected with the ultracapacitor group and the energy storage device respectively；
The third switch is connected with the energy storage device and the two-way inverter respectively.
6. distribution type photovoltaic energy storage system according to claim 5, which is characterized in that further include control system, the control
System processed is used for switch operating state；
The control system includes first switch controller, second switch controller and third switch controller；
The first switch controller is used to test the voltage and current of the photovoltaic power generation apparatus；
The second switch controller is used to test the voltage and current of the ultracapacitor group；
The third switch controller is used to test the voltage and current of the accumulator group.
7. distribution type photovoltaic energy storage system according to claim 6, which is characterized in that the first switch and described first
Switch controller is connected the opening and closing for controlling the first switch controller；
The opening and closing that the second switch is connected with the second switch controller for controlling the second switch controller；
The third switchs the opening and closing being connected for controlling the third switch controller with the third switch controller.
8. distribution type photovoltaic energy storage system according to claim 7, which is characterized in that the first switch controller, institute
It states second switch controller and the third switch controller is connected to each other by communication bus.
9. distribution type photovoltaic energy storage system according to claim 7, which is characterized in that further include temperature sensor；
The temperature sensor is set on the photovoltaic power generation apparatus, the temperature sensor and the third switch controller
It is connected.
10. a kind of solar photovoltaic generation system, which is characterized in that according to claim 1-9 any one of them distribution light
Lie prostrate energy-storage system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083859.7U CN208015378U (en) | 2018-01-17 | 2018-01-17 | Distribution type photovoltaic energy storage system and solar photovoltaic generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083859.7U CN208015378U (en) | 2018-01-17 | 2018-01-17 | Distribution type photovoltaic energy storage system and solar photovoltaic generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208015378U true CN208015378U (en) | 2018-10-26 |
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| CN201820083859.7U Expired - Fee Related CN208015378U (en) | 2018-01-17 | 2018-01-17 | Distribution type photovoltaic energy storage system and solar photovoltaic generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112838606A (en) * | 2020-12-30 | 2021-05-25 | 广东电网有限责任公司电力调度控制中心 | Distributed energy supply operation system, forming method and device thereof, and terminal equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838606A (en) * | 2020-12-30 | 2021-05-25 | 广东电网有限责任公司电力调度控制中心 | Distributed energy supply operation system, forming method and device thereof, and terminal equipment |
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