CN202930998U - Solar energy independent power supply system - Google Patents
Solar energy independent power supply system Download PDFInfo
- Publication number
- CN202930998U CN202930998U CN2012206462621U CN201220646262U CN202930998U CN 202930998 U CN202930998 U CN 202930998U CN 2012206462621 U CN2012206462621 U CN 2012206462621U CN 201220646262 U CN201220646262 U CN 201220646262U CN 202930998 U CN202930998 U CN 202930998U
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- China
- Prior art keywords
- power supply
- energy
- solar energy
- inverter
- solar
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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.)
- Expired - Fee Related
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
Provided is a solar energy independent power supply system, comprising a solar cell module, an MPPT functional DC/DC, an energy storage cell, an inverter DC-AC, and a DC bus, wherein the output of the solar cell module is connected with the input of the MPPT functional DC/DC; the output of the MPPT functional DC/DC is respectively and mutually connected with the energy storage cell and the inverter DC-AC via the DC bus in an electrical manner. According to the utility model, the solar energy independent power supply system adopts the MPPT functional DC/DC, thereby realizing the real-time tracking of the maximum power point of the solar cell module, obtaining the solar energy in the highest degree, and raising the utilization rate of the solar energy. When an inverter DC/AC is used for providing power for a load, the MPPT functional DC/Dc is capable of tracking the maximum power point of the solar cell module in a real-time manner, thereby using more electric energy directly transformed from the solar energy and decreasing the discharging electric quantity of a cell.
Description
Technical field
The utility model relates to photovoltaic generation, relates in particular to a kind of solar energy independent electric power supply.
Background technology
The solar energy independent electric power supply uses when can be applicable to the illumination in the place that public electric wire net is difficult to cover, nomadic area and providing power supply for small-sized DC electrical equipment, is used as emergency power supply when being applicable to special circumstances simultaneously.But the solar energy independent electric power supply generally adopts photovoltaic module, lead acid accumulator and charging-discharging controller to form at present, can not satisfy the instructions for use that day by day improves aspect solar energy utilization ratio, battery performance and product weight.
The utility model content
The purpose of this utility model, the problem that exists in order to solve above-mentioned prior art exactly provides a kind of solar energy independent electric power supply.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of solar energy independent electric power supply comprises solar module, MPPT function DC/DC, energy-storage battery, inverter DC-AC and dc bus; The output of solar module connects the input of MPPT function DC/DC, and the output of MPPT function DC/DC realizes electric being connected to each other with energy-storage battery and inverter DC-AC respectively by dc bus.
Also comprise converter DC-DC, the input of this converter DC-DC connects dc bus.
Described energy-storage battery is ferric phosphate lithium cell group or lithium ion battery group, is provided with protective circuit in battery pack.
Described MPPT function DC/DC adopts Kang Weiteji DiDi300.
Described inverter DC-AC adopts easily volt electric energy inverter SI200-212.
The utility model has following advantage and disadvantage owing to having adopted above technical scheme:
1, adopt MPPT function DC/DC, the maximum power point of real-time tracking solar module at utmost obtains solar energy, improves the utilance of solar energy.
2, in the battery charging stage, the maximum power point of MPPT function DC/DC energy real-time tracking solar module charges to battery fast.
3, when powering to the load by inverter DC/AC, the maximum power point of MPPT function DC/DC energy real-time tracking solar module, the electric energy that more use solar energy are directly changed reduces the battery discharge electric weight.
4, this power-supply system adopts the long-life high density energy-storage batteries such as ferric phosphate lithium cell or lithium ion battery, and weight, the volume of power supply significantly reduce.
Description of drawings
Fig. 1 is the structured flowchart of the utility model solar energy independent electric power supply.
Embodiment
Referring to Fig. 1, the utility model solar energy independent electric power supply comprises solar module 1, MPPT function DC/DC2, energy-storage battery 3, inverter DC-AC4 and dc bus 5.The output of solar module 1 connects the input of MPPT function DC/DC2, and the output of MPPT function DC/DC2 realizes electric being connected to each other with energy-storage battery 3 and inverter DC-AC4 respectively by dc bus 5.
Also comprise converter DC-DC6, the input of this converter DC-DC6 connects dc bus 5.
Energy-storage battery in the utility model is ferric phosphate lithium cell group or lithium ion battery group, is provided with protective circuit in battery pack.
MPPT function DC/DC in the utility model adopts Kang Weiteji DiDi300.
Inverter DC-AC in the utility model adopts easily volt electric energy inverter SI200-212.
In the utility model, solar module 1 is the main generating source of power supply, and output voltage and the electric current of solar module 1 has " knee type curve " relation, and its output is affected by temperature, irradiance etc.There is power maximum functional point in the power output of solar module 1 under specified criteria, and the output electric energy is maximum when this work.MPPT function DC/DC2 is the electrical energy transformer with tracking solar battery component 1 maximum power point function.MPPT function DC/DC2 adjusts the output instantaneous power of solar module 1 by at every moment internal control, seek maximum power point and substantially maintain maximum power point place's work, make the output instantaneous power of solar module 1 the highest, the electric energy of final output is maximum.The electric energy of MPPT function DC/DC output is delivered to energy-storage battery 3 and is stored, and delivers to inverter DC-AC4 for load.Energy-storage battery 3 is charging be there is no the long-life high density energy-storage batteries such as the strict ferric phosphate lithium cell that limits or lithium ion battery, can all store obtaining in real time the photovoltaic electric energy.Power supply can configure converter DC/DC6 for DC load, also DC load directly can be connected dc bus 5 power takings.
Claims (5)
1. a solar energy independent electric power supply, is characterized in that: comprise solar module, MPPT function DC/DC, energy-storage battery, inverter DC-AC and dc bus; The output of solar module connects the input of MPPT function DC/DC, and the output of MPPT function DC/DC realizes electric being connected to each other with energy-storage battery and inverter DC-AC respectively by dc bus.
2. solar energy independent electric power supply according to claim 1, is characterized in that: also comprise converter DC-DC, the input connection dc bus of this converter DC-DC.
3. solar energy independent electric power supply according to claim 1, it is characterized in that: described energy-storage battery is ferric phosphate lithium cell group or lithium ion battery group, is provided with protective circuit in battery pack.
4. solar energy independent electric power supply according to claim 1, is characterized in that: described MPPT function DC/DC employing Kang Weiteji DiDi300.
5. solar energy independent electric power supply according to claim 1, is characterized in that: the easy volt of described inverter DC-AC employing electric energy inverter SI200-212.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206462621U CN202930998U (en) | 2012-11-29 | 2012-11-29 | Solar energy independent power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206462621U CN202930998U (en) | 2012-11-29 | 2012-11-29 | Solar energy independent power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930998U true CN202930998U (en) | 2013-05-08 |
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ID=48220908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206462621U Expired - Fee Related CN202930998U (en) | 2012-11-29 | 2012-11-29 | Solar energy independent power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346601A (en) * | 2013-07-16 | 2013-10-09 | 北京奥博泰科技有限公司 | Flat integrated LED lamp capable of generating and storing power |
-
2012
- 2012-11-29 CN CN2012206462621U patent/CN202930998U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346601A (en) * | 2013-07-16 | 2013-10-09 | 北京奥博泰科技有限公司 | Flat integrated LED lamp capable of generating and storing power |
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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: 20130508 Termination date: 20151129 |