CN202906521U - Off-grid photovoltaic power generation system - Google Patents
Off-grid photovoltaic power generation system Download PDFInfo
- Publication number
- CN202906521U CN202906521U CN2012205657942U CN201220565794U CN202906521U CN 202906521 U CN202906521 U CN 202906521U CN 2012205657942 U CN2012205657942 U CN 2012205657942U CN 201220565794 U CN201220565794 U CN 201220565794U CN 202906521 U CN202906521 U CN 202906521U
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- Prior art keywords
- hydrogen
- photovoltaic
- water electrolysis
- controller
- fuel cell
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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
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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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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses an off-grid photovoltaic power generation system which comprises a photovoltaic module, a controller used for controlling to output regulated voltage, a water electrolysis system used for being electrified to generate hydrogen, a hydrogen storage device used for storing the hydrogen, a hydrogen fuel cell used for converting the hydrogen into electric energy, and a photovoltaic off-grid inverter used for converting direct current into alternating current. The photovoltaic module is connected to the photovoltaic off-grid inverter through the controller, the water electrolysis system, the hydrogen storage device and the hydrogen fuel cell sequentially; the photovoltaic module generates direct current and transmits the direct current to the water electrolysis system through the controller; the water electrolysis system transmits the hydrogen generated through water electrolysis to the hydrogen storage device under the control of the controller; the hydrogen storage device supplies the stored hydrogen to the hydrogen fuel cell so as to generate electricity and produce direct current; and the direct current is input into the photovoltaic off-grid inverter and inverted into alternating current. The off-grid photovoltaic power generation system can be used to carry out photovoltaic power storage and power generation simply and safely.
Description
Technical field
The utility model relates to the generation technology that utilizes solar energy, is specifically related to a kind of from net type photovoltaic generating system.
Background technology
At present, the whole world nearly also has that 2,000,000,000 populations do not have access to electricity, and wherein considerable part is in the outlying district of economics of underdevelopment, is difficult to rely on extend conventional electrical network and solve electrical problem.In addition according to statistics, China to 2012 year also has nearly 8,000,000 populations not have access to electricity, and wherein estimating needs solar power generation to solve the electricity consumption of 5,800,000 populations, so utilize the market of solar power generation to use wide.
Existing form from net type photovoltaic generating system mainly contains the independent photovoltaic power station and photo-voltaic power supply and mixed type power station are used in the family, the energy storage section of these photovoltaic generating systems adopts lead-acid battery usually, but, lead acid accumulator poor reliability, maintenance complexity, higher to environment/temperature requirement, life-span is short, and its whole life cycle all can be to environment.
The utility model content
Technical problem to be solved in the utility model just provides a kind ofly from net type photovoltaic generating system, can carry out simply, safely storage and the generating of photovoltaic electric energy.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of from net type photovoltaic generating system, it is characterized in that: comprise photovoltaic module, the controller that is used for control stable output voltage, be used for the water electrolysis system that energising produces hydrogen, the hydrogen gas storing device that is used for hydrogen gas storage, be used for hydrogen is converted to the hydrogen fuel cell of electric energy, be used for the photovoltaic off-grid inverter with converting direct-current power into alternating-current power, described photovoltaic module is via controller successively, water electrolysis system, hydrogen gas storing device, be connected to photovoltaic off-grid inverter behind the hydrogen fuel cell; Described photovoltaic module via controller produces direct current and delivers to water electrolysis system, by controller control water electrolysis system water electrolysis is produced hydrogen and deliver to the hydrogen gas storing device storage, the hydrogen gas storing device storage provides hydrogen, and generating produces direct current to hydrogen fuel cell, and inputting the photovoltaic off-grid inverter inversion is alternating current again.
Hydrogen gas storing device described in the utility model is provided with for the hydrogen output of external air feed with for the hydrogen input that deposits hydrogen from the outside in.
Controller described in the utility model has the control end that is respectively applied to control water electrolysis system, hydrogen gas storing device, hydrogen fuel cell and photovoltaic off-grid inverter work, described water electrolysis system, hydrogen gas storing device, hydrogen fuel cell and photovoltaic off-grid inverter have respectively controlled end, and each controlled end links to each other with the corresponding controling end of controller respectively.
Controller described in the utility model also has the dc supply input for the external dc power input.
Compared with prior art, the utility model technology has following beneficial effect:
(1) the utility model is with the hydrogen form storage photovoltaic module energy that generated electricity, and can in time export electric energy for demand, the electrolysate of water electrolysis system is water, hydrogen and oxygen, it is long that this storage mode has memory time, without the impact of electric energy decay, and the storage mode of the utility model hydrogen is simple, safety, environmental protection, more convenient, the longer service life of maintenance in the storage;
(2) the utility model energy of battery that can act as a fuel by the purified hydrogen that the hydrogen input is accepted other sources ensures conversion hydrogen and powers; In the situation of hydrogen redundancy, can provide hydrogen as energy source for the use terminal that adopts hydrogen by the hydrogen output;
(3) the utility model can be stored by the direct current energy in outside other sources of dc supply input reception, and for example the wind-driven generator of direct current makes the hydrogen fuel storage sufficient, and then guarantees that system's operation is continuous;
(4) byproduct after the electrolysis of the utility model water electrolysis system is pure oxygen, and extra economic worth is provided.
Description of drawings
Fig. 1 is connection diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 a kind of from net type photovoltaic generating system, comprise photovoltaic module 1, be used for control stable output voltage controller 2, be used for water electrolysis system 3, the hydrogen gas storing device 4 that is used for hydrogen gas storage that energising produces hydrogen, be used for converting hydrogen the hydrogen fuel cell 5 of electric energy to and be used for photovoltaic off-grid inverter 6 with converting direct-current power into alternating-current power, photovoltaic module 1 is connected to photovoltaic off-grid inverter 6 behind via controller 2, water electrolysis system 3, hydrogen gas storing device 4, the hydrogen fuel cell 5 successively; Photovoltaic module 1 via controller 2 produces direct current and delivers to water electrolysis system 3, by controller 2 control water electrolysis systems 3 water electrolysis is produced hydrogen and deliver to hydrogen gas storing device 4 storages, hydrogen gas storing device 4 storages provide hydrogen, and 5 generatings produce direct current to hydrogen fuel cell, inputting photovoltaic off-grid inverter 6 inversions is alternating current again, is used for AC load.
Wherein, many photovoltaic modulies 1 form array and are used for conversion solar; Controller 2 can be followed the trail of the maximum power point of photovoltaic module array, produces under the current sunlight intensity maximum direct current, and stablely provides water electrolysis system required voltage.This controller 2 is comprised of photovoltaic module maximum power point tracking device, conventional direct voltage modulation circuit, the outside direct voltage interface of reservation and conventional control module, and wherein, photovoltaic module maximum power point tracking device is used for making photovoltaic module 1 send maximum power; The direct voltage modulation circuit is used for regulating input voltage, makes it to be converted to water electrolysis system 3 and uses voltage; The outside direct voltage interface of reserving is used for being connected outside other dc energy source inputs; Control module be used for to be judged brine electrolysis situation, hydrogen storage condition, hydrogen fuel cell discharge scenario, and with above advisory from net inverter 6, judge whether to start generating.This controller 2 has the control end that is respectively applied to control water electrolysis system 3, hydrogen gas storing device 4, hydrogen fuel cell 5 and photovoltaic off-grid inverter 6 work, water electrolysis system 3, hydrogen gas storing device 4, hydrogen fuel cell 5 and photovoltaic off-grid inverter 6 have respectively controlled end, and each controlled end links to each other with the corresponding controling end of controller 2 respectively.Controller 2 detects the data of water electrolysis system 3, hydrogen gas storing device 4, hydrogen fuel cell system 5 and photovoltaic off-grid inverter 6, according to inner setting or higher level's dispatching command, control water electrolysis system 3 brine electrolysis, hydrogen gas storing device 4 and hydrogen fuel cell 5 carry out the hydrogen conversion, again by photovoltaic off-grid inverter 6 output ACs electricity.
Be connected with first flow meter 7 between water electrolysis system 3 and the hydrogen gas storing device 4, for detection of the hydrogen flowing quantity of water electrolysis system output, so that controller obtains corresponding hydrogen capacity data; Be provided with for the hydrogen output of external air feed with for the hydrogen input that deposits hydrogen from the outside at hydrogen gas storing device 4, can externally provide when needed hydrogen or from outside inputting hydrogen, and be connected to the second flowmeter 8 at the hydrogen input, be convenient to equally controller 2 and obtain corresponding hydrogen capacity data.
When this need to charge from net type photovoltaic generating system, controller 2 controls were powered to water electrolysis system 3 by photovoltaic module 1 or outside other power supplys, and hydrogen gas storing device 4 obtains hydrogen and stores.When this need to discharge from net type photovoltaic generating system, controller 2 control hydrogen fuel cells 5 were when needed with the hydrogen conversion power generation, again through photovoltaic off-grid inverter 6 inversion output ACs electricity.
Execution mode of the present utility model is not limited to this; according to foregoing of the present utility model; utilize ordinary skill knowledge and the customary means of this area; do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite; the utility model can also be made modification, replacement or the change of other various ways, all drops within the utility model rights protection scope.
Claims (4)
1. one kind from net type photovoltaic generating system, it is characterized in that: comprise photovoltaic module, be used for control stable output voltage controller, be used for water electrolysis system, the hydrogen gas storing device that is used for hydrogen gas storage that energising produces hydrogen, be used for converting hydrogen the hydrogen fuel cell of electric energy to and be used for photovoltaic off-grid inverter with converting direct-current power into alternating-current power, described photovoltaic module is connected to photovoltaic off-grid inverter behind via controller, water electrolysis system, hydrogen gas storing device, the hydrogen fuel cell successively; Described photovoltaic module via controller produces direct current and delivers to water electrolysis system, by controller control water electrolysis system water electrolysis is produced hydrogen and deliver to the hydrogen gas storing device storage, the hydrogen gas storing device storage provides hydrogen, and generating produces direct current to hydrogen fuel cell, and inputting the photovoltaic off-grid inverter inversion is alternating current again.
2. according to claim 1 from net type photovoltaic generating system, it is characterized in that: described hydrogen gas storing device is provided with for the hydrogen output of external air feed with for the hydrogen input that deposits hydrogen from the outside in.
3. according to claim 1 and 2 from net type photovoltaic generating system, it is characterized in that: described controller has the control end that is respectively applied to control water electrolysis system, hydrogen gas storing device, hydrogen fuel cell and photovoltaic off-grid inverter work, described water electrolysis system, hydrogen gas storing device, hydrogen fuel cell and photovoltaic off-grid inverter have respectively controlled end, and each controlled end links to each other with the corresponding controling end of controller respectively.
4. according to claim 3 from net type photovoltaic generating system, it is characterized in that: described controller also has the dc supply input for the external dc power input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205657942U CN202906521U (en) | 2012-10-30 | 2012-10-30 | Off-grid photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205657942U CN202906521U (en) | 2012-10-30 | 2012-10-30 | Off-grid photovoltaic power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN202906521U true CN202906521U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012205657942U Expired - Lifetime CN202906521U (en) | 2012-10-30 | 2012-10-30 | Off-grid photovoltaic power generation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018178175A (en) * | 2017-04-07 | 2018-11-15 | 富士通株式会社 | Electrolysis system, electrolysis control apparatus, control method of electrolysis system |
| CN109412196A (en) * | 2017-08-17 | 2019-03-01 | 王家琳 | Off-network type wind electric heating hydrogen alliance, stocking system |
| CN109412195A (en) * | 2017-08-17 | 2019-03-01 | 王家琳 | A kind of small-sized honourable alliance hydrogen electric system |
-
2012
- 2012-10-30 CN CN2012205657942U patent/CN202906521U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018178175A (en) * | 2017-04-07 | 2018-11-15 | 富士通株式会社 | Electrolysis system, electrolysis control apparatus, control method of electrolysis system |
| CN109412196A (en) * | 2017-08-17 | 2019-03-01 | 王家琳 | Off-network type wind electric heating hydrogen alliance, stocking system |
| CN109412195A (en) * | 2017-08-17 | 2019-03-01 | 王家琳 | A kind of small-sized honourable alliance hydrogen electric system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |