CN202395495U - Efficient solar MPPT photovoltaic controller - Google Patents
Efficient solar MPPT photovoltaic controller Download PDFInfo
- Publication number
- CN202395495U CN202395495U CN2012200022632U CN201220002263U CN202395495U CN 202395495 U CN202395495 U CN 202395495U CN 2012200022632 U CN2012200022632 U CN 2012200022632U CN 201220002263 U CN201220002263 U CN 201220002263U CN 202395495 U CN202395495 U CN 202395495U
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- China
- Prior art keywords
- controller
- storage battery
- mppt
- solar
- voltage
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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.)
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a novel solar photovoltaic controller. The novel solar photovoltaic controller comprises a maximum power point tracking (MPPT) controller, the MPPT controller is respectively connected with a solar battery and a DC/DC converter, and the DC/DC converter is connected between the solar battery and the storage battery. The photovoltaic controller can improve the solar charging efficiency and the utilization of the solar power generation, can adopt a smaller battery, and is economy and practical.
Description
Technical field
The utility model relates to technical field of solar, particularly relates to the photovoltaic new controller.
Background technology
Along with the good environment greenhouse effect of energy crisis are serious day by day, national policy tilts to the investment in fixed assets aspect of energy-saving and emission-reduction gradually.Wherein, the Application and Development of solar energy is the pith of said energy-saving and emission-reduction, also is the pith of regenerative resource, and becomes the focus and the main flow of green energy resource gradually.
Existing solar energy system generally comprises solar cell and controller for solar, can also comprise storage battery.
Consult Fig. 1, above-mentioned controller for solar generally is to adopt parallel connected mode, and the voltage that solar cell outputs to storage battery is adjusted in the conducting through switch and ending, thus the protection storage battery.But there are following two problems at least in above-mentioned parallel technology:
The first, adjust voltage through switch, the electricity that some solar cell sends when the switch closure switch so can slattern.In case the signal of second control switch is malfunctioning, charging voltage or the load voltage that then can not guarantee storage battery are in proper level.
Summary of the invention
The technical problem that the utility model mainly solves provides a kind of photovoltaic new controller, can improve the solar charging electrical efficiency, improves the utilance of solar power generation, and can adopt littler storage battery, and is economical and practical.
For addressing the above problem; The technical scheme that the utility model adopts is: a kind of photovoltaic new controller is provided; The photovoltaic new controller comprises the MPPT maximum power point tracking controller; The MPPT controller connects solar cell, storage battery, DC/DC transducer respectively, and the DC/DC transducer is connected between solar cell and the storage battery, and the DC/DC transducer is exported to the output voltage of storage battery within the safe charging voltage of storage battery;
The MPPT controller also connects the control end of load make-and-break control switch, and control switch is electrically connected between storage battery and the load.
The beneficial effect of the utility model is: be different from that the prior art solar energy generating efficiency is low, the charging voltage that is difficult to guarantee storage battery or load voltage be in the situation of proper level; The utility model adopts the MPPT controller to control the control of solar cell to charge in batteries; Improve utilization rate of electrical, and guarantee that through the DC/DC transducer discharge that the voltage output of solar cell accumulators maintains lsafety level and regulates storage battery realizes the safe handling of storage battery.
Description of drawings:
Fig. 1: the sketch map of the solar energy system of the controller for solar of the utility model prior art;
Fig. 2: the sketch map of the solar energy system of the solar energy highly effective MPPT photovoltaic controller of the utility model.
Embodiment:
Embodiment:
As shown in Figure 2, the utility model photovoltaic new controller is applied in the solar energy system.Said photovoltaic new controller comprises MPPT maximum power point tracking (MPPT; Maximum Power Point Tracking) controller; The MPPT controller connects solar cell, storage battery, DC/DC transducer respectively; The DC/DC transducer is connected between solar cell and the storage battery, and the DC/DC transducer is exported to the output voltage of storage battery within the safe charging voltage of storage battery.
The MPPT controller also connects the 5. control end of (not shown in the figures, as only to show label and title) of load make-and-break control switch, and control switch is electrically connected between storage battery and the load.
The electricity of solar cell output is set in voltage within the battery charge safe voltage scope through high efficiency DC/DC transducer earlier; Carrying out D/A through the utility model photovoltaic new controller 2. changes; To adjust the charging needs (like various charging modes such as constant pressure and flows) that the DC/DC converter output voltage satisfies storage battery among a small circle, at utmost protect storage battery.
The realization of MPPT: the utility model photovoltaic new controller measure in real time solar array voltage, electric current 1. and the voltage of storage battery, electric current 3..
The MPPT controller is a kind of new type solar energy controller; It is the upgraded product of traditional solar charging/discharging controller; So-called MPPT maximum power point tracking; Promptly be meant the generating voltage that controller can the detecting real-time solar panels, and follow the tracks of ceiling voltage current value (VI), make system with the highest efficient to charge in batteries.
Want to charge a battery, the output voltage of solar cell must be higher than the current voltage of storage battery, if the output voltage of solar cell is lower than battery tension, output current can be near 0 so.So, for safety, when solar cell dispatches from the factory in manufacturing, the crest voltage (Vpp) of solar cell is set at about about 17V.
The difference of MPPT controller and traditional controller for solar is: the charge parameter of traditional solar charging/discharging controller all just configured before dispatching from the factory; Then how the generating efficiency of tube solar does not change, and the speed that charges a battery also is limited.And the MPPT controller is to adjust charge in batteries speed automatically.In other words, the MPPT controller is understood the maximum power point in the real-time tracking solar cell, brings into play the maximum effect of solar cell.Voltage is high more, through maximal power tracing, just can export more electric weight, thereby improves charge efficiency.In theory, use the solar power system of MPPT controller to improve 50% than traditional efficient.
Accumulator protecting:
Protect storage battery through voltage, the electric current monitoring 3. of storage battery when the first, charging, prevent to overcharge with super-high-current and charge.
The second, the voltage and current of when battery discharging, measuring in real time storage battery is set discharge cut-off voltage 3. and according to the discharge curve of storage battery, prevents that storage battery from crossing to put.
If three, the 3rd monitor the battery discharging electric current, then 5. come switching off load protection storage battery through the load make-and-break control switch greater than system's maximum load 20%.
Four, city's electric protection: to disconnect switch 6. (not shown in the figures for civil power at ordinary times; Only show label and title); When long-time when overcast and rainy; When the stored electric energy of storage battery is not enough to keep load request, then connect switch 6. powering load and charge in batteries, so both guaranteed that power demands also protected storage battery.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (2)
1. solar energy highly effective MPPT photovoltaic controller; It is characterized in that: this solar energy highly effective MPPT photovoltaic controller comprises MPPT maximum power point tracking MPPT controller; Described MPPT controller connects solar cell, storage battery, DC/DC transducer respectively, and described DC/DC transducer is electrically connected between described solar cell and the storage battery.
2. solar energy highly effective MPPT photovoltaic controller according to claim 1, it is characterized in that: said MPPT controller also connects the control end of load make-and-break control switch, and said control switch is electrically connected between said storage battery and the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200022632U CN202395495U (en) | 2012-01-05 | 2012-01-05 | Efficient solar MPPT photovoltaic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200022632U CN202395495U (en) | 2012-01-05 | 2012-01-05 | Efficient solar MPPT photovoltaic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395495U true CN202395495U (en) | 2012-08-22 |
Family
ID=46670397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200022632U Expired - Fee Related CN202395495U (en) | 2012-01-05 | 2012-01-05 | Efficient solar MPPT photovoltaic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202395495U (en) |
-
2012
- 2012-01-05 CN CN2012200022632U patent/CN202395495U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Guizhou Nengheng Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20150105 |
|
| EXPY | Termination of patent right or utility model |