CN104079239A - Multi-combination device of large-scale solar photovoltaic off-grid power generation system - Google Patents
Multi-combination device of large-scale solar photovoltaic off-grid power generation system Download PDFInfo
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- CN104079239A CN104079239A CN201410248935.1A CN201410248935A CN104079239A CN 104079239 A CN104079239 A CN 104079239A CN 201410248935 A CN201410248935 A CN 201410248935A CN 104079239 A CN104079239 A CN 104079239A
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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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Abstract
The invention discloses a multi-combination device of a large-scale solar photovoltaic off-grid power generation system. The multi-combination device is characterized by being composed of n off-grid power generation units (1), a low-voltage power distribution cabinet (2), a transformer (3) and an alternating load (4), wherein n is larger than or equal to 1 and is a positive integer. The off-grid power generation units (1) are connected with the low-voltage power distribution cabinet (2), the low-voltage power distribution cabinet (2) is connected with the transformer (3), and the transformer (3) is connected with the alternating load (4). According to the multi-combination device of the large-scale solar photovoltaic off-grid power generation system, abundant solar energy in the remote areas can be fully converted into electric energy needed by people in the life of the remote areas, the multi-combination mode can adapt to various environments, the solar energy can be utilized to the maximum degree, and unified management is convenient. Thus, the multi-combination device is an ideal power source in the non-electricity areas.
Description
Technical field
The invention belongs to solar photovoltaic generation system device, particularly a kind of large solar photovoltaic is from the many combination units of net electricity generation system.
Background technology
Along with scientific and technological development, electric energy has been penetrated into the every field of mankind's activity widely, but in the whole world, also has 2,000,000,000 populations nearly not have access to electricity, wherein suitable major part is lived in the outlying district of economics of underdevelopment, is difficult to rely on extension normal power supplies to solve electrical problem.These outlying areas without electricity often solar energy resources are very abundant, adopt photovoltaic can effectively solve by normal power supplies extension difficulty and electrical problem from net generating, existing photovoltaic meets outlying district agriculture, herdsman family illumination from net (independent) electricity generation system, it is very little that it produces power, system is simple, can not meet people completely and live and promote rapidly and a large amount of electricity consumptions, and system is reasonable not, is unfavorable for unified management and maintenance.
Summary of the invention
The object of this invention is to provide a kind of large solar photovoltaic from the many combination units of net electricity generation system, this device can make full use of the abundant solar energy in outlying district and be converted into the outlying district people required electric energy of living, and the mode of many combinations can adapt to various environment, utilize to greatest extent solar energy, be convenient to unified management, be the desirable power supply of areas without electricity simultaneously.
In order to reach above object, the technical solution used in the present invention is: a kind of large solar photovoltaic is from the many combination units of net electricity generation system, it is characterized in that, this device forms from net generator unit (1), low-voltage distribution cabinet (2), transformer (3), AC load (4) by n is individual, and n≤1 and n are positive integer; Describedly be connected with low-voltage distribution cabinet (2) from net generator unit (1), low-voltage distribution cabinet (2) is connected with transformer (3), and transformer (3) is connected with AC load (4); Describedly comprise solar cell array (11), junction box (12), DC lightning prevention device (13), anti-reverse charging diode (14), controller (15), storage battery (16), separate inverter unit (17) and DC load (18) from net generator unit (1); Described solar cell array (11) is connected with junction box (12), and junction box (12) is connected with DC lightning prevention device (13); Described DC lightning prevention device (13) is connected with anti-reverse charging diode (14), and anti-reverse charging diode (14) is connected with controller (15); Described storage battery (16), separate inverter unit (17), DC load (18) are all connected with controller (15); Described separate inverter unit (17) is connected with low-voltage distribution cabinet (2).
Operation principle of the present invention: select suitable azimuth and inclination angle to install solar cell array (11), solar cell array (11) converts solar energy into high-frequency DC and sends into junction box (12), junction box (12) is converted to high-frequency direct-current high voltage direct current again and is delivered to DC lightning prevention device (13), pass through anti-reverse charging diode (14) from DC lightning prevention device (13) high voltage direct current out, enter controller (15), optionally export high voltage direct current by controller (15): can directly be used as DC load (18), or by electrical power storage in storage battery (16), while needs, be directly delivered to DC low voltage power supply (5), or be delivered to separate inverter unit (17), separate inverter unit (17) becomes high-voltage d. c inverse transform and the simple sinusoidal alternating current of line voltage with frequency, homophase, be delivered to again low-voltage distribution cabinet (2), alternating current is flowed to transformer (3) by low-voltage distribution cabinet (2), boost by transformer (3), be finally delivered to AC load (4).
The invention has the beneficial effects as follows: (1) the present invention has infinitely-great overall size, the multiple way of output, not only improve the quality of living for the numerous residents masses of areas without electricity, meet the required power supply of various electric equipment utensil electricity consumption, be also these regional economic developments, found various enterprises, use various power consumption equipments that power conditions is provided.
(2) the present invention is made up of multiple generator unit, and each generator unit all can single construction, and Independent Power Generation, operation and maintenance management do not affect all the other subsystems or the whole generating from net electricity generation system, operation and maintenance management.This design has not only improved the flexibility that photovoltaic off-grid electricity generation system is installed, and can select different mounting meanss according to backwoodsman landform and territorial environment, can be more fast, efficient, flood tide obtains the huge resource of solar power generation.
(3) concentrating operation management is convenient in the present invention, United Dispatching, and its cost of electricity-generating is relatively low.
Brief description of the drawings
Fig. 1 is fundamental diagram of the present invention.
Fig. 2 is the single structural representation from the combination of net generator unit of the present invention.
Fig. 3 is 10 structural representations from the combination of net generator unit of the present invention.
Fig. 4 is the individual structural representation from the combination of net generator unit of n of the present invention.
Be expressed as at the numerical reference described in Figure of description: 1, from net generator unit; 2, low-voltage distribution cabinet; 3, transformer; 4, AC load; 5, DC low voltage power supply; 11, solar cell array; 12, junction box; 13, DC lightning prevention device; 14, anti-reverse charging diode; 16, storage battery; 15, controller; 17, separate inverter unit; 18, DC load.
Embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
Referring to Fig. 1, Fig. 2,100Kwp large solar photovoltaic is from the many combination units of net electricity generation system, and this device is made up of from net generator unit 1, low-voltage distribution cabinet 2, transformer 3, AC load 41 100Kwp.100Kwp comprises 100Kwp solar cell array 11, junction box 12, DC lightning prevention device 13, anti-reverse charging diode 14, controller 15, storage battery 16,100KVA separate inverter unit 17 and DC load 18 from net generator unit 1.
Select suitable azimuth and inclination angle to install 100Kwp solar cell array 11, the direct current that 100Kwp solar cell array 11 is received is delivered to junction box 12, junction box 12 is converted to high-frequency direct-current high voltage direct current flow through successively DC lightning prevention device 13, anti-reverse charging diode 14, controller 15 again, optionally export high voltage direct current by controller 15: can directly be used as DC load 18, or electrical power storage, in storage battery 16, is directly delivered to DC low voltage power supply 5 while needs; Or be delivered to separate inverter unit 17, separate inverter unit 17 becomes high-voltage d. c inverse transform and the simple sinusoidal alternating current of line voltage with frequency, homophase, then is delivered to low-voltage distribution cabinet 2, and alternating current is flowed to transformer 3 by low-voltage distribution cabinet 2, boost by transformer 3, be finally delivered to AC load 4.
Referring to Fig. 1, Fig. 3,1Mwp large solar photovoltaic is from the many combination units of net electricity generation system, by forming from net generator unit 1 of 10 100Kwp, 10 alternating currents that produce from net generator unit 1 are all delivered to low-voltage distribution cabinet 2, by low-voltage distribution cabinet 2, alternating current is flowed to transformer 3 again and boost, be finally delivered to AC load 4; Or can directly be used as DC load 18; Or each from net generator unit 1 by power storage in storage battery 16 separately, can directly be delivered to whenever necessary DC low voltage power supply 5.
Referring to Fig. 1, Fig. 4, a kind of large solar photovoltaic is from the many combination units of net electricity generation system, this device forms from net generator unit 1, low-voltage distribution cabinet 2, transformer 3, AC load 4 by n is individual, n≤1 and n are positive integer, the individual alternating current producing from net generator unit 1 of n is all delivered to low-voltage distribution cabinet 2, through boosting by transformer 3, be finally delivered to AC load 4 again; Or can directly be used as DC load 18; Or each from net generator unit 1 by electrical power storage in storage battery 16 separately, can directly be delivered to whenever necessary DC low voltage power supply 5.
Large solar photovoltaic comprises structure and the design of optical electric field, solar cell array, photoelectric conversion, photoelectric yield from net electricity generation system, scientific allocation, arrange the fine coupling of reasonable and every engineering specifications, technical advanced person.Should concentrate implementation management from net generating system apparatus, and reduce from net photovoltaic system installation cost than little, medium-sized, economic worth improves greatly.
Applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above example is just for helping to understand method of the present invention and core concept thereof.The above is only the preferred embodiment of the present invention, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, retouching or variation, also above-mentioned technical characterictic can be combined by rights; These improve retouching, change or combination, or without improving, the design of invention and technical scheme are directly applied to other occasion, all should be considered as protection scope of the present invention.
Claims (1)
1. large solar photovoltaic, from the many combination units of net electricity generation system, is characterized in that, this device forms from net generator unit (1), low-voltage distribution cabinet (2), transformer (3), AC load (4) by n is individual, and n≤1 and n are positive integer; Describedly be connected with low-voltage distribution cabinet (2) from net generator unit (1), low-voltage distribution cabinet (2) is connected with transformer (3), and transformer (3) is connected with AC load (4); Describedly comprise solar cell array (11), junction box (12), DC lightning prevention device (13), anti-reverse charging diode (14), controller (15), storage battery (16), separate inverter unit (17) and DC load (18) from net generator unit (1); Described solar cell array (11) is connected with junction box (12), and junction box (12) is connected with DC lightning prevention device (13); Described DC lightning prevention device (13) is connected with anti-reverse charging diode (14), and anti-reverse charging diode (14) is connected with controller (15); Described storage battery (16), separate inverter unit (17), DC load (18) are all connected with controller (15); Described separate inverter unit (17) is connected with low-voltage distribution cabinet (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410248935.1A CN104079239A (en) | 2014-06-07 | 2014-06-07 | Multi-combination device of large-scale solar photovoltaic off-grid power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410248935.1A CN104079239A (en) | 2014-06-07 | 2014-06-07 | Multi-combination device of large-scale solar photovoltaic off-grid power generation system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303252Y (en) * | 2008-06-06 | 2009-09-02 | 北京集能伟业电子科技有限公司 | Intelligent battery management solar charge controller |
| US20110193515A1 (en) * | 2010-02-05 | 2011-08-11 | National Chiao Tung University | Solar power management system |
| CN102868173A (en) * | 2012-08-28 | 2013-01-09 | 深圳蓝波幕墙及光伏工程有限公司 | Distributive independent photovoltaic power generation system and method |
| CN103683328A (en) * | 2013-12-13 | 2014-03-26 | 厦门市东港智能科技有限公司 | Automatic switching module and photovoltaic grid-connected and off-grid full-automatic power generation system |
| CN203883768U (en) * | 2014-06-07 | 2014-10-15 | 张祈泰 | Large-scale solar photovoltaic off-grid power generation system multi-combination device |
-
2014
- 2014-06-07 CN CN201410248935.1A patent/CN104079239A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303252Y (en) * | 2008-06-06 | 2009-09-02 | 北京集能伟业电子科技有限公司 | Intelligent battery management solar charge controller |
| US20110193515A1 (en) * | 2010-02-05 | 2011-08-11 | National Chiao Tung University | Solar power management system |
| CN102868173A (en) * | 2012-08-28 | 2013-01-09 | 深圳蓝波幕墙及光伏工程有限公司 | Distributive independent photovoltaic power generation system and method |
| CN103683328A (en) * | 2013-12-13 | 2014-03-26 | 厦门市东港智能科技有限公司 | Automatic switching module and photovoltaic grid-connected and off-grid full-automatic power generation system |
| CN203883768U (en) * | 2014-06-07 | 2014-10-15 | 张祈泰 | Large-scale solar photovoltaic off-grid power generation system multi-combination device |
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Application publication date: 20141001 |