CN206834764U - Photovoltaic generating system - Google Patents
Photovoltaic generating system Download PDFInfo
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- CN206834764U CN206834764U CN201720699345.XU CN201720699345U CN206834764U CN 206834764 U CN206834764 U CN 206834764U CN 201720699345 U CN201720699345 U CN 201720699345U CN 206834764 U CN206834764 U CN 206834764U
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- China
- Prior art keywords
- combining inverter
- battery
- photovoltaic module
- photovoltaic
- power network
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- 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
-
- 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
Abstract
The utility model discloses a kind of photovoltaic generating system.Wherein, the system includes：Photovoltaic module array, for converting the solar into direct current；From combining inverter, it is connected with photovoltaic module array, for direct current to be converted into alternating current, and electric energy is exported to battery and power network；Battery, it is connected with from combining inverter.Power network, it is connected with from combining inverter.The utility model solves off-network electricity generation system in the prior art and loaded in no light or weaker illumination and can not be worked and grid-connected system loads the technical problem that can not be worked in grid power blackout.
Description
Technical field
Generating electricity by natural energy field is the utility model is related to, in particular to a kind of photovoltaic generating system.
Background technology
Solar energy power generating is the green energy resource that state key advocates utilization.Green energy resource is widely used to reducing
The discharge of carbon dioxide and other toxic gases, Air Pollution prevention and control, preserve the ecological environment significant, and assign naturally
Give the historic responsibility of the mankind and society.China's land resource is vast, and inhabitants live disperses, and conventional energy supply lacks.In order to full
Demand of the sufficient economic development to the energy, it is necessary to supplemented by developing new and renewable sources of energy.
Just from the point of view of current photovoltaic market both domestic and external, typically there are grid-connected photovoltaic system and off-network photovoltaic system existing in the market
System, grid-connected photovoltaic system require that inverter must possess anti-isolated island function according to grid company at present, i.e., must rely on power network
The operation of whole system can be completed, the normal operation of equipment can not be met when power network is without electricity.Although off-grid system can solve
The drawbacks of certainly power network is enough run without electric energy, but when load excessive or not strong illumination, accumulator electric-quantity can not meet equipment
Startup voltage, equipment also can not normal operation work.
Being loaded for the above-mentioned electricity generation system of off-network in the prior art in no light or weaker illumination can not work and grid-connected
Electricity generation system is loaded in grid power blackout the problem of can not working, and not yet proposes effective solution at present.
Utility model content
The utility model embodiment provides a kind of photovoltaic generating system, at least to solve off-network generating system in the prior art
In no light or weaker illumination, load can not work system and grid-connected system loads the skill that can not be worked in grid power blackout
Art problem.
According to the one side of the utility model embodiment, there is provided a kind of photovoltaic generating system, including：Photovoltaic module battle array
Row, for converting the solar into direct current；From combining inverter, it is connected with photovoltaic module array, for direct current to be changed
For alternating current, and electric energy is exported to battery and power network；Battery, it is connected with from combining inverter；Power network, and from parallel network reverse
Device connects.
Further, system also includes：Distribution box, it is connected with from combining inverter and power network.
Further, distribution box includes following at least one：AC power distribution cabinet/AC distribution panel, accumulator tank and grid-connected batch meter.
Further, system also includes：Monitoring system, it is connected with from combining inverter.
Further, system also includes：Controller, it is connected with photovoltaic module array and from combining inverter.
Further, controller is MPPT charge controllers.
Further, DSP Processor is included from combining inverter.
Further, DSP Processor includes MPPT charging control units and three stage charging system unit.
Further, photovoltaic module array includes two groups of photovoltaic modulies, and every group of photovoltaic module includes 9 photovoltaic modulies.
Further, battery includes following at least one：Lithium ion battery, lead-acid battery, nickel-cadmium cell and ni-mh electricity
Pond.
In the utility model embodiment, formed using photovoltaic module array, from combining inverter, battery and power network etc.
The mode of photovoltaic generating system, wherein, photovoltaic module array, for converting the solar into direct current；From combining inverter, with
Photovoltaic module array connects, and for direct current to be converted into alternating current, and exports electric energy to battery and power network；Battery, with
Connected from combining inverter；Power network, be connected with from combining inverter, by from combining inverter by photovoltaic module array electricity
Supply load uses or is delivered to power network, and power network supply load uses and charged a battery, and accumulator electric-quantity supply load makes
With, three parts point are combined at times, have reached photovoltaic generating system off-network, grid-connected purpose, and by bidirectional energy-storage, it is real
The two-way flow control of existing electric energy, it is achieved thereby that ensureing in no light or weaker illumination and having electricity and without electricity in power network
When load can normal operation, photovoltaic generation all generates power for their own use, and improves the technique effect of network load pressure, and then solves
Off-network electricity generation system is loaded in no light or weaker illumination and can not worked and grid-connected system is in grid power failure in the prior art
The technical problem that can not be worked is loaded when electric.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the schematic diagram according to a kind of photovoltaic generating system of the utility model embodiment；
Fig. 2 is the schematic diagram according to a kind of optional photovoltaic generating system of the utility model embodiment；
Fig. 3 is the schematic diagram according to a kind of optional photovoltaic generating system of the utility model embodiment；And
Fig. 4 is the schematic diagram according to a kind of optional photovoltaic generating system of the utility model embodiment.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that be described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so
The data used can exchange in the appropriate case, so that embodiment of the present utility model described herein can be with except at this
In diagram or description those beyond order implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment
Be not necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes,
The intrinsic other steps of method, product or equipment or unit.
Embodiment 1
According to the utility model embodiment, there is provided a kind of product embodiments of photovoltaic generating system, Fig. 1 are according to this reality
With the photovoltaic generating system of new embodiment, as shown in figure 1, the system include photovoltaic module array 10, from combining inverter 20,
Battery 30 and power network 40；Wherein, photovoltaic module array 10, for converting the solar into direct current；From combining inverter 20,
It is connected with photovoltaic module array 10, for direct current to be converted into alternating current, and electric energy is exported to battery 30 and power network 40；Store
Battery 30, it is connected with from combining inverter 20；Power network 40, it is connected with from combining inverter 20.
Specifically, photovoltaic module array 10 is typically formed by multiple photovoltaic modulies according to certain array, wherein, photovoltaic module
It by the energy conversion of solar radiation be direct current that photovoltaic effect, which can be utilized, and photovoltaic generation has energy source abundance, built
If the advantage that the cycle is short, conversion is easily realized and effect on environment is small, to power network 40 in photovoltaic generating system of the present utility model
All electric energy of conveying provide by photovoltaic module array 10；Photovoltaic generating system can be uniformly coordinated from combining inverter 20
The work such as boosting, charging, inversion, switching, it is the core link of photovoltaic generating system, as shown in figure 1, can from combining inverter 20
To be directly connected to load 50, by using from combining inverter 20, can realize simultaneously from grid-connected function；The master of battery 30
It is energy storage to act on, and specially stores institute's generated energy on daytime, when power network 40 is without electricity, load 50 can be given to provide electric energy, met negative
Carry 50 normal use；Power network 40 can be public electric wire net, and it, which is acted on, is absorbed from electric energy caused by combining inverter 20, generally
Power network 40 can be regarded as an infinitely great exchange energy storage device, and its parameter can be optionally 220V ± 10%, pass through
It is connected from combining inverter 20 with power network 40, electric energy caused by photovoltaic generating system of the present utility model is meeting personal premise
Under, clean energy resource can also be conveyed to power network 40, power network 40 is also used to load 50 and provides electric energy.
In a particular application, photovoltaic generating system of the present utility model absorbs solar irradiation on daytime and generated electricity, and is sent out
Electricity substantially meet personal, and be partly into battery 30 and power network 40, after evening no light, power network 40 can be given negative
50 power supplies are carried, while supplement power supply is carried out by battery 30, therefore the power load of power network 40 can be reduced；When power network 40 has a power failure
Afterwards, storage battery power supply pattern can be automatically switched to, the power supply of load 50 is given by battery 30, to meet the normal fortune of load 50
OK, uninterrupted power supply is realized, realizes the breakthrough of energy storage technology.It the following is three specific application scenarios：
Scene one, 10 generated energy of photovoltaic module array supply to load 50 simultaneously with battery 30 under grid-connected state
Electricity.When photovoltaic generating system of the present utility model is being generated electricity daytime, system institute generated energy preferentially meets that load 50 uses,
Unnecessary electricity can supplement battery 30, and dump energy is connected to the grid 40, optionally, can be with when daytime, power load was big
Peak regulation and peak load shifting are carried out, to improve the utilization ratio of the energy.
Scene two, 10 generated energy of photovoltaic module array supply to load 50 simultaneously with battery 30 under island operation state
Electricity.After power network 40 has a power failure, photovoltaic generating system of the present utility model can automatically switch to the powering mode of battery 30, by storing
Battery 30 meets the normal operation of load 50, realizes the function of never powering off to the power supply of load 50.
Scene three, power network 40 gives the power supply of load 50 under grid-connected state.During night, photovoltaic generation system of the present utility model
For system without generating electricity, the civil power that preferentially can be provided using power network 40 meets that load 50 uses, and can optionally, during night enter
The preferential utilization of the valley of row power network 40, to improve the utilization ratio of the energy.
In the utility model embodiment, using photovoltaic module array 10, from combining inverter 20, battery 30 and power network
40 grades form the mode of photovoltaic generating system, wherein, photovoltaic module array 10, for converting the solar into direct current；From simultaneously
Net inverter 20, it is connected with photovoltaic module array 10, for direct current to be converted into alternating current, and to battery 30 and power network 40
Export electric energy；Battery 30, it is connected with from combining inverter 20；Power network 40, it is connected with from combining inverter 20, by from grid-connected
The electricity supply load 50 of photovoltaic module array 10 is used or is delivered to power network 40 by inverter 20, and the supply load 50 of power network 40 makes
Charged with and to battery 30, the electricity supply load 50 of battery 30 is used, and three parts are combined at times, have reached photovoltaic hair
Electric system off-network, grid-connected purpose, and by bidirectional energy-storage, the two-way flow control of electric energy is realized, it is achieved thereby that ensureing
In no light or weaker illumination and when power network 40 is having electricity and without electricity load 50 can normal operation, photovoltaic generation is whole
Generate power for their own use, improve the load pressure of power network 40 technique effect, and then solve in the prior art off-network electricity generation system unglazed
According to or illumination it is weaker when load can not work and grid-connected system loads the technical problem that can not work in grid power blackout.
Herein it should be noted that photovoltaic generating system of the present utility model can be the photovoltaic generation based on intelligent micro-grid
System, wherein, intelligent micro-grid refers to by distributed power source, energy storage device, energy conversion device, associated loadings and monitoring, protection
The small-sized electric system that device collects, self-contr ol, protection and the autonomous system of management can be realized by being one, both may be used
, can also isolated operation to be incorporated into the power networks with external electrical network.
In a kind of optional embodiment, photovoltaic generating system of the present utility model is when to the power supply of load 50, tool
The ability of standby automatically and manually switch operating state, for example, battery 30 or electricity can be realized by automatic or manual switching
Power supply of the net 40 to load 50.
In a kind of optional embodiment, frequency modulation function can be realized from combining inverter 20, for example, can be by direct current
It is adjusted to industrial-frequency alternating current.
In a kind of optional embodiment, as shown in Fig. 2 system also includes：Distribution box 60, with from combining inverter 20 and
Power network 40 connects.
Specifically, as shown in Fig. 2 when system includes distribution box 60, distribution box 60 except with from combining inverter 20 and
Outside power network 40 connects, also it is connected with load 50.Distribution box 60 possesses rational distribution electric energy, conveniently to the switching action of circuit
And the function such as conducting state of display circuit directly perceived.
In a kind of optional embodiment, as shown in Fig. 2 DC/DC inverters and DC/ can be included from combining inverter 20
AC inverters.
In a kind of optional embodiment, distribution box 60 includes following at least one：AC power distribution cabinet/AC distribution panel, accumulator tank and simultaneously
Network metering case.
Specifically, in practical application, grid-connected batch meter can be that 5KW exchanges grid-connected batch meter, and 5KW exchanges are grid-connected
Can be 5KW from grid-connected from combining inverter 20 accordingly during batch meter knife switch wiring by the way of bottom in and top out
Inverter.
In a kind of optional embodiment, system also includes：Monitoring system, it is connected with from combining inverter 20.
In a kind of optional embodiment, as shown in figure 3, system also includes：Controller 70, with photovoltaic module array 10 and
Connected from combining inverter 20.
Specifically, as shown in figure 3, photovoltaic module array 10 can be connected with a controller 70, then by controller 70
Be connected with from combining inverter 20, battery 30 except be connected from combining inverter 20 in addition to, be also connected with controller 70,
In a kind of optional embodiment, controller 70 is MPPT charge controllers.
In a kind of optional embodiment, include DSP Processor from combining inverter 20.
Specifically, from DSP (data signal processor, Digital Signal Processor in combining inverter 20
Write a Chinese character in simplified form) processor can be uniformly coordinated the work such as the boosting of control system, charging, inversion, switching.
In a kind of optional embodiment, DSP Processor includes MPPT (MPPT maximum power point tracking, Maximum Power
Point Tracking's writes a Chinese character in simplified form) charging control unit and three stage charging system unit.
Specifically, DSP Processor can built-in high-precision MPPT tracking and intelligent three stage charging system function, be family, island
The small photovoltaic power generation systems such as small island, ship provide stable, reliable, safety solution.
In a kind of optional embodiment, as shown in Figure 3 and Figure 4, photovoltaic module array 10 includes two groups of photovoltaic modulies, often
Group photovoltaic module includes 9 photovoltaic modulies.
Specifically, as shown in Figure 3 and Figure 4, photovoltaic module array 10 can be the photovoltaic module array of 2 and 9 strings, wherein,
The setting angle of photovoltaic module array 10 can be 34 degree, and the specification of each photovoltaic module can be 1640*992*35mm, each
The capacity of photovoltaic module can be 18Pcs*260W=4.68KW, and the distance between two groups of photovoltaic modulies can be 2200mm.
In a kind of optional embodiment, battery 30 includes following at least one：Lithium ion battery, lead-acid battery, nickel
Cadmium cell and Ni-MH battery.
Specifically, battery 30 can be batteries, including multiple batteries connected according to ad hoc fashion connection in series-parallel,
For example, it may be the batteries of 2 and 9 strings, design parameter can be 25.9V and 57.2ah.
Above-mentioned the utility model embodiment sequence number is for illustration only, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in some embodiment
The part not being described in detail, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical solution of the utility model sheet
The part to be contributed in other words to prior art in matter or all or part of the technical scheme can be with software products
Form is embodied, and the computer software product is stored in a storage medium, including some instructions to cause one meter
Calculate machine equipment (can be personal computer, server or network equipment etc.) and perform each embodiment methods described of the utility model
All or part of step.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), with
Machine access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store journey
The medium of sequence code.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. photovoltaic generating system, it is characterised in that including：Photovoltaic module array, for converting the solar into direct current；From combining inverter, it is connected with the photovoltaic module array, for the direct current to be converted into alternating current, and to electric power storage Pond and power network output electric energy；Battery, it is connected with described from combining inverter；Power network, it is connected with described from combining inverter.
- 2. system according to claim 1, it is characterised in that the system also includes：Distribution box, it is connected with described from combining inverter and the power network.
- 3. system according to claim 2, it is characterised in that the distribution box includes following at least one：AC distribution Cabinet, accumulator tank and grid-connected batch meter.
- 4. system according to claim 1, it is characterised in that the system also includes：Monitoring system, it is connected with described from combining inverter.
- 5. system according to claim 1, it is characterised in that the system also includes：Controller, with the photovoltaic module array and described being connected from combining inverter.
- 6. system according to claim 5, it is characterised in that the controller is MPPT charge controllers.
- 7. system according to claim 1, it is characterised in that described to include DSP Processor from combining inverter.
- 8. system according to claim 7, it is characterised in that the DSP Processor include MPPT charging control units and Three stage charging system unit.
- 9. according to the system described in any one in claim 1-8, it is characterised in that the photovoltaic module array includes two groups Photovoltaic module, every group of photovoltaic module include 9 photovoltaic modulies.
- 10. according to the system described in any one in claim 1-8, it is characterised in that the battery is included as follows at least It is a kind of：Lithium ion battery, lead-acid battery, nickel-cadmium cell and Ni-MH battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720699345.XU CN206834764U (en) | 2017-06-15 | 2017-06-15 | Photovoltaic generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720699345.XU CN206834764U (en) | 2017-06-15 | 2017-06-15 | Photovoltaic generating system |
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| CN206834764U true CN206834764U (en) | 2018-01-02 |
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| CN201720699345.XU Expired - Fee Related CN206834764U (en) | 2017-06-15 | 2017-06-15 | Photovoltaic generating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147147A (en) * | 2017-06-15 | 2017-09-08 | 山东新华联智能光伏有限公司 | Photovoltaic generating system |
| CN108736498A (en) * | 2018-05-24 | 2018-11-02 | 上海交通大学 | A kind of energy control method for smart home light storage electricity generation system |
-
2017
- 2017-06-15 CN CN201720699345.XU patent/CN206834764U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147147A (en) * | 2017-06-15 | 2017-09-08 | 山东新华联智能光伏有限公司 | Photovoltaic generating system |
| CN108736498A (en) * | 2018-05-24 | 2018-11-02 | 上海交通大学 | A kind of energy control method for smart home light storage electricity generation system |
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Granted publication date: 20180102 Termination date: 20200615 |