CN203850909U - Photovoltaic off-grid power generation control distributing system - Google Patents
Photovoltaic off-grid power generation control distributing system Download PDFInfo
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- CN203850909U CN203850909U CN201420184407.XU CN201420184407U CN203850909U CN 203850909 U CN203850909 U CN 203850909U CN 201420184407 U CN201420184407 U CN 201420184407U CN 203850909 U CN203850909 U CN 203850909U
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- photovoltaic
- control
- allotment
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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
Abstract
The utility model discloses a photovoltaic off-grid power generation control distributing system. The photovoltaic off-grid power generation control distributing system comprises a plurality of photovoltaic arrays, photovoltaic controllers, distributing switches, storage battery sets, a plurality of inverters, a data acquisition unit for acquiring electric signals of a load, and a central control system. The central control system is connected to control terminals of the plurality of distributing switches through a control bus, is simultaneously connected to control terminals of the plurality of inverters through a control bus, and is connected to an output terminal of the data acquisition unit through a data bus. Under the control of the central control system, electric power generated by the photovoltaic arrays can be selected by the distributing switches to charge the storage battery sets, and to charge the storage battery sets and to be output to the load through the inverters, or the storage battery sets output electric energy to the load through the inverters. The photovoltaic off-grid power generation control distributing system has the beneficial effects that structure is reasonable, comprehensive cost is obviously reduced, maintenance is convenient, and price performance ratio is high.
Description
Technical field
The utility model relates to a kind of photovoltaic off-grid Generation Control mixing system.
Background technology
Photovoltaic off-grid Generation Control mixing system is an important composition part in photovoltaic generation, traditional photovoltaic off-grid electricity generation system is to fill a set of energy-storage system with a controller, energy-storage system selects cheap lead-acid battery, and exported by a set of inverter of correspondence, all to export simply one to one, in this context, lead acid accumulator can only be to discharge and recharge at random, life-span is just very short, cost is just very high, when photovoltaic generation is erected on island, the cost of raw material of lead acid accumulator adds cost of transportation, that is just higher, take modal lead acid accumulator as example, under normal circumstances, lead acid accumulator discharge and recharge the life-span 600 left and right, but in traditional photovoltaic off-grid electricity generation system, the impulse electricity life-span of lead acid accumulator does not reach far away 600 times, conventionally, less than scrapping half a year.
Utility model content
The utility model, according to above not enough, provides a kind of photovoltaic off-grid Generation Control mixing system, and this system, by reasonably allotment, makes the impulse electricity life-span of storage battery can reach comparatively ideal state.
The technical solution of the utility model is:
A photovoltaic off-grid Generation Control mixing system, comprising:
Some photovoltaic arrays;
Photovoltaic controller, the input of several photovoltaic controllers is connected respectively to several photovoltaic arrays, and quantity is identical with photovoltaic arrays, and photovoltaic controller is for converting the electric current and voltage of photovoltaic arrays output to be applicable to late-class circuit required voltage electric current to;
Allotment switch, quantity is identical with photovoltaic controller, and the input of several allotment switches is connected respectively to the output of several photovoltaic controllers;
Batteries, quantity is identical with allotment switch, and several batteries are connected to respectively the input/output port of several allotment switches;
A plurality of inverters, the direct-flow input end of this inverter is connected to the output port of several allotment switches jointly;
Data acquisition unit, its input gathers respectively the signal of telecommunication of each photovoltaic controller, load by data/address bus;
Central control system, by control bus, be connected to the control end of several allotment switches, simultaneously, by control bus, be connected to the control end of a plurality of inverters, central control system is connected to the output of data acquisition unit by data/address bus, under the control of central control system, by allotment switch can select electricity that photovoltaic arrays sends to the electricity that batteries is charged, photovoltaic arrays sends, batteries to be charged and by inverter output to load, batteries outputs to load by inverter.
Central control system is usingd PLC as control centre.
Described photovoltaic arrays is provided with seven.
Described inverter is provided with three.
Described data acquisition unit is for gathering voltage, electric current and the power signal of photovoltaic controller, load.
It should be noted that, the variation of load is complicated, sometimes be random, but owing to having many group photovoltaic arrays generate electricity and the associating power supply of a plurality of inverters, and controlled by computer, system is become flexibly, and it is fine that power supply, charging, generating can be coordinated, and especially batteries charged and can be controlled finely.Solved completely in traditional photovoltaic off-grid electricity generation system, with a controller, filled a set of energy-storage system, by a set of inverter of correspondence, exported, thus the technical problem that greatly shortens the useful life of lead-acid battery.
The utlity model has beneficial effect rational in infrastructure, that integrated cost obviously reduces, easy to maintenance, the ratio of performance to price is high.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Now by reference to the accompanying drawings the utility model is further described:
As shown in the figure, a kind of photovoltaic off-grid Generation Control mixing system, comprising:
Some photovoltaic arrays, particularly, select seven groups the photovoltaic arrays 1 in figure to photovoltaic arrays 7;
Photovoltaic controller, particularly, select seven groups the photovoltaic controller 1 in figure to the input of 7,7 photovoltaic controllers of photovoltaic controller be connected respectively to 7 photovoltaic arrays, photovoltaic controller is for converting the electric current and voltage of photovoltaic arrays output to be applicable to late-class circuit required voltage electric current to;
Allotment switch, quantity is identical with photovoltaic controller, and the input of 7 allotment switches is connected respectively to the output of 7 photovoltaic controllers;
Batteries, quantity is identical with allotment switch, and the batteries in figure 1 is connected to respectively the input/output port of 7 allotment switches to 7,7 batteries of batteries;
A plurality of inverters, preferably 3, the inverter in figure 1 is to inverter 3, and the direct-flow input end of these 3 inverters is connected to the output port of 7 allotment switches jointly;
Data acquisition unit, its input gathers respectively the signal of telecommunication of each photovoltaic controller, load by data/address bus;
Central control system, by control bus, be connected to the control end of 7 allotment switches, simultaneously, by control bus, be connected to the control end of 3 inverters, central control system is connected to the output of data acquisition unit by data/address bus, under the control of central control system, the electricity that can select photovoltaic arrays to send by allotment switch charges to batteries, the electricity that photovoltaic arrays sends charges to batteries and outputs to load by inverter, batteries outputs to load by inverter, 7 allotment switches are respectively by K11 and K12, K21 and K22 to K71 and K72 form, by various combinations, obtain above-mentioned working method.
Data acquisition unit is for gathering voltage, electric current and the power signal of photovoltaic controller, load.
Claims (4)
1. a photovoltaic off-grid Generation Control mixing system, is characterized in that, comprising:
Some photovoltaic arrays;
Photovoltaic controller, the input of several photovoltaic controllers is connected respectively to several photovoltaic arrays, and quantity is identical with photovoltaic arrays, and photovoltaic controller is for converting the electric current and voltage of photovoltaic arrays output to be applicable to late-class circuit required voltage electric current to;
Allotment switch, quantity is identical with photovoltaic controller, and the input of several allotment switches is connected respectively to the output of several photovoltaic controllers;
Batteries, quantity is identical with allotment switch, and several batteries are connected to respectively the input/output port of several allotment switches;
A plurality of inverters, the direct-flow input end of this inverter is connected to the output port of several allotment switches jointly;
Data acquisition unit, its input gathers respectively the signal of telecommunication of each photovoltaic controller, load by data/address bus;
Central control system, by control bus, be connected to the control end of several allotment switches, simultaneously, by control bus, be connected to the control end of a plurality of inverters, central control system is connected to the output of data acquisition unit by data/address bus, under the control of central control system, by allotment switch can select electricity that photovoltaic arrays sends to the electricity that batteries is charged, photovoltaic arrays sends, batteries to be charged and by inverter output to load, batteries outputs to load by inverter.
2. a kind of photovoltaic off-grid Generation Control mixing system as claimed in claim 1, is characterized in that, described photovoltaic arrays is provided with seven.
3. a kind of photovoltaic off-grid Generation Control mixing system as claimed in claim 1 or 2, is characterized in that, described inverter is provided with three.
4. a kind of photovoltaic off-grid Generation Control mixing system as claimed in claim 1 or 2, is characterized in that, described data acquisition unit is for gathering voltage, electric current and the power signal of photovoltaic controller, load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184407.XU CN203850909U (en) | 2014-04-15 | 2014-04-15 | Photovoltaic off-grid power generation control distributing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184407.XU CN203850909U (en) | 2014-04-15 | 2014-04-15 | Photovoltaic off-grid power generation control distributing system |
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| Publication Number | Publication Date |
|---|---|
| CN203850909U true CN203850909U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420184407.XU Expired - Fee Related CN203850909U (en) | 2014-04-15 | 2014-04-15 | Photovoltaic off-grid power generation control distributing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418205B (en) * | 2018-02-24 | 2021-04-02 | 大工（青岛）新能源材料技术研究院有限公司 | Optical storage off-network system model selection configuration method |
-
2014
- 2014-04-15 CN CN201420184407.XU patent/CN203850909U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418205B (en) * | 2018-02-24 | 2021-04-02 | 大工（青岛）新能源材料技术研究院有限公司 | Optical storage off-network system model selection configuration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20160415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |