CN102723896A - Photovoltaic power generation system - Google Patents
Photovoltaic power generation system Download PDFInfo
- Publication number
- CN102723896A CN102723896A CN2012102070226A CN201210207022A CN102723896A CN 102723896 A CN102723896 A CN 102723896A CN 2012102070226 A CN2012102070226 A CN 2012102070226A CN 201210207022 A CN201210207022 A CN 201210207022A CN 102723896 A CN102723896 A CN 102723896A
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- China
- Prior art keywords
- solar
- inverter
- generating system
- energy
- power generation
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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
Abstract
The invention discloses a photovoltaic power generation system comprising a solar charge-discharge controller, a solar cell array, an energy storing device and an inverter; the solar cell array, the energy storing device and the inverter are connected with the solar charge-discharge controller respectively, wherein the solar charge-discharge controller is further connected with a direct current load; and the inverter is connected with an alternate current power grid. The photovoltaic power generation system is simple in structure and low in cost and can convert the solar energy into electricity at a larger conversion rate.
Description
Technical field
The present invention relates to a kind of photovoltaic generating system.
Background technology
Photovoltaic generation is to utilize photovoltaic effect, makes solar radiation can be transformed into the generation mode of electric energy, is the main flow of current solar power generation.Photovoltaic effect is exactly when object receives rayed, and the CHARGE DISTRIBUTION state in the object changes and produces a kind of effect of electromotive force and electric current.Photovoltaic generating system is to utilize solar cell directly solar energy converting to be become the electricity generation system of electric energy; Be characterized in reliability height, long service life, free from environmental pollution, can independently generate electricity and can be incorporated into the power networks; Receive the favor of every industry or trade's tissue, have vast potential for future development.At present, there are characteristics such as complex structure, manufacturing cost is high, electric energy conversion efficiency is low mostly in photovoltaic generating system.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, with low cost, can solar energy be changed into electric energy with bigger conversion ratio and can store the photovoltaic generating system of electric energy.
The technical scheme that realizes above-mentioned purpose is:
A kind of photovoltaic generating system, external DC load and AC network, said photovoltaic generating system comprises the solar charging/discharging controller, and the solar battery array, energy storage device and the inverter that connect this solar charging/discharging controller respectively, wherein:
Said solar charging/discharging controller also connects said DC load;
Said inverter connects said AC network.
Above-mentioned photovoltaic generating system, wherein, said energy storage device is an energy storage battery.
Above-mentioned photovoltaic generating system, wherein, said inverter is DC-AC (direct current is delivered a stream) inverter.
The invention has the beneficial effects as follows: the present invention is simple in structure, and is with low cost, can to large extent conversion of solar energy be become electric energy, thereby improves the generating efficiency of whole system; And the present invention has the function that stores electric energy, has guaranteed the continuity and the stability of system's power supply.
Description of drawings
Fig. 1 is the structure chart of photovoltaic generating system of the present invention.
Embodiment
To combine accompanying drawing that the present invention is described further below.
See also Fig. 1; Photovoltaic generating system of the present invention, external DC load 200 and AC network 300, said photovoltaic generating system comprises solar charging/discharging controller 1; And the solar battery array 2, energy storage device 3 and the inverter 4 that connect solar charging/discharging controller 1 respectively, wherein:
Solar charging/discharging controller 1 also connects DC load 200; Inverter 4 connects AC network 300.
Solar charging/discharging controller 1 is near the maximum power point of generating the present invention all the time, to obtain peak efficiency; Adopt pulse width modulating technology; According to actual conditions; The direct current energy that solar battery array 2 is produced is directly supplied with DC load 200 or is transferred in the energy storage device 3 and stores; To be transferred to inverter 4 available from the direct current energy of solar battery array 2 or energy storage device 3 simultaneously, thereby be converted into alternating current, supply with AC network 300 through inverter 4.
In the present embodiment, energy storage device 3 is an energy storage battery; Inverter 4 is the DC-AC inverter.
The present invention is simple in structure, and is with low cost, can to large extent conversion of solar energy be become electric energy, has very high generating efficiency.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technical staff in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (3)
1. photovoltaic generating system; External DC load and AC network is characterized in that, said photovoltaic generating system comprises the solar charging/discharging controller; And the solar battery array, energy storage device and the inverter that connect this solar charging/discharging controller respectively, wherein:
Said solar charging/discharging controller also connects said DC load;
Said inverter connects said AC network.
2. photovoltaic generating system according to claim 1 is characterized in that, said energy storage device is an energy storage battery.
3. photovoltaic generating system according to claim 1 is characterized in that, said inverter is the DC-AC inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102070226A CN102723896A (en) | 2012-06-21 | 2012-06-21 | Photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102070226A CN102723896A (en) | 2012-06-21 | 2012-06-21 | Photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723896A true CN102723896A (en) | 2012-10-10 |
Family
ID=46949584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102070226A Pending CN102723896A (en) | 2012-06-21 | 2012-06-21 | Photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723896A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110084551A1 (en) * | 2009-10-12 | 2011-04-14 | Robert Johnson | Photovoltaic system with managed output |
| CN202121531U (en) * | 2011-07-16 | 2012-01-18 | 武夷山市鑫泰光电有限公司 | Solar energy photovoltaic power supply system |
| CN202261081U (en) * | 2011-05-16 | 2012-05-30 | 武汉纺织大学 | Solar photovoltaic grid-connected and grid-disconnected hybrid power generating system |
| CN202713194U (en) * | 2012-06-21 | 2013-01-30 | 上海市电力公司 | Photovoltaic power generation system |
-
2012
- 2012-06-21 CN CN2012102070226A patent/CN102723896A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110084551A1 (en) * | 2009-10-12 | 2011-04-14 | Robert Johnson | Photovoltaic system with managed output |
| CN202261081U (en) * | 2011-05-16 | 2012-05-30 | 武汉纺织大学 | Solar photovoltaic grid-connected and grid-disconnected hybrid power generating system |
| CN202121531U (en) * | 2011-07-16 | 2012-01-18 | 武夷山市鑫泰光电有限公司 | Solar energy photovoltaic power supply system |
| CN202713194U (en) * | 2012-06-21 | 2013-01-30 | 上海市电力公司 | Photovoltaic power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121026 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121026 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |