CN204967746U - Solar electric power supply system - Google Patents
Solar electric power supply system Download PDFInfo
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- CN204967746U CN204967746U CN201520715023.0U CN201520715023U CN204967746U CN 204967746 U CN204967746 U CN 204967746U CN 201520715023 U CN201520715023 U CN 201520715023U CN 204967746 U CN204967746 U CN 204967746U
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- output
- voltage
- output voltage
- transducer
- power supply
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a solar electric power supply system, its key lies in: connect input voltage acquisition circuit at the voltage input of DCDC converter end, the power switching output of DCDC converter serves and is connected with output voltage acquisition circuit, and the input of output voltage regulator is connected to MCU's voltage control end, and the output connection of output voltage regulator is held at DCDC converter voltage feedback, MCU adjusts the output voltage regulator according to the input and the output voltage of DCDC converter, and then the output voltage shelves and the voltage precision of control DCDC converter, beneficial effect: voltage conversion circuit self low power dissipation, conversion efficiency height still can provide the power for the product under the low condition of solar illumination, can be according to load power, switching sun power supply system's output voltage shelves or electric current shelves, from taking the voltage negative feedback circuit, solar electric power supply system's robustness is better.
Description
Technical field
The utility model belongs to Application of Solar Energy field, specifically a kind of solar electric power supply system.
Background technology
At present, along with the development of new energy technology, solar energy is the most significant energy of future generation beyond doubt, and therefore, correlation technique is developed energetically.Solar electric power supply system can convert solar energy into electrical energy, and is generally applicable to be arranged on outdoor device.
But existing solar electric power supply system generally designs for certain loads, namely the output voltage/electric current of solar electric power supply system is fixed value; And be arranged on outdoor low-power load for many, as being arranged on the sensor assembly, ZigBee router etc. of outdoor image data, all design a solar electric power supply system for often kind of load obviously unrealistic.And, existing solar electric power supply system does not possess the input voltage Acquisition Circuit of electric pressure converter, and MCU is only according to the output of the output voltage regulation voltage transducer of electric pressure converter, visible, existing solar electric power supply system output accuracy is not high, and the robustness of entire system is poor.
Utility model content
In view of this, the utility model provides a kind of concrete technical scheme as follows:
A kind of solar electric power supply system, its key is: comprise solar panel, DC/DC transducer, storage battery, MCU and output voltage regulator;
The output of described solar panel connects the voltage input end of described DC/DC transducer, and the power switching output of described DC/DC transducer connects the charging end of described storage battery;
The voltage input end of described DC/DC transducer is also connected with input voltage Acquisition Circuit, and the input voltage that described input voltage Acquisition Circuit gathers DC/DC transducer passes to described MCU;
The power switching output of described DC/DC transducer is also connected with output voltage Acquisition Circuit, and the output voltage of collection is passed to described MCU by described output voltage Acquisition Circuit;
The voltage controling end of described MCU connects the input of described output voltage regulator, and the output of described output voltage regulator is connected to described DC/DC transducer voltage feedback end;
Described DC/DC converter power switches output and is also connected with charging current observation circuit, and the output of described charging current observation circuit is connected to the charging current monitoring side of described MCU;
Described MCU is connected with load, and is this load supplying.
Based on the solar electric power supply system of said structure, voltage conversion circuit oneself power consumption is low and conversion efficiency is higher, still can provide power supply for product when solar illumination is low; But also can power for the load of different capacity; Form voltage negative feedback circuit between described output voltage Acquisition Circuit, MCU, output voltage regulator and DC/DC transducer, improve the robustness of solar electric power supply system.
In a particular embodiment, described output voltage regulator is potentiometer.
Further, be also provided with ambient light detecting sensor, described ambient light detecting sensor passes to described MCU after gathered light information is converted to the signal of telecommunication.When light intensity is stronger, the electric energy that described MCU selects described DC/DC transducer to change is directly load supplying; When light is more weak, described storage battery is selected to be load supplying.
Further, during for preventing light more weak, electric current in storage battery refluxes, switch between output and the charging end of described storage battery at the power of described DC/DC transducer and be also provided with charge switch, the control end of described charge switch is connected on described MCU, and described MCU controls opening of described charge switch or turns off; The output of described storage battery is also connected with battery tension Acquisition Circuit, and the voltage signal of the storage battery collected is passed to described MCU.
Beneficial effect: voltage conversion circuit oneself power consumption is low, conversion efficiency is high, still can provide power supply for product when solar illumination is low; According to bearing power, output voltage shelves or the current gear of sun electric power system can be switched; Carry voltage negative feedback circuit, the robustness of solar electric power supply system is better.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
A kind of solar electric power supply system as depicted in figs. 1 and 2, its key is: comprise solar panel 1, DC/DC transducer 2, storage battery 3, MCU4 and output voltage regulator 6;
The output of described solar panel 1 connects the voltage input end of described DC/DC transducer 2, and the power switching output of described DC/DC transducer 2 connects the charging end of described storage battery 3;
The voltage input end of described DC/DC transducer 2 is also connected with input voltage Acquisition Circuit 5, and the input voltage that described input voltage Acquisition Circuit 5 gathers DC/DC transducer 2 passes to described MCU4;
The power switching output of described DC/DC transducer 2 is also connected with output voltage Acquisition Circuit 7, and the output voltage of collection is passed to described MCU4 by described output voltage Acquisition Circuit 7;
The voltage controling end of described MCU4 connects the input of described output voltage regulator 6, and the output of described output voltage regulator 6 is connected to described DC/DC transducer 2 pressure feedback port;
Described DC/DC transducer 2 power switches output and is also connected with charging current observation circuit 8, and the output of described charging current observation circuit 8 is connected to the charging current monitoring side of described MCU4;
Described MCU4 is connected with load, and is this load supplying.
Based on the solar electric power supply system of said structure, voltage conversion circuit oneself power consumption is low and conversion efficiency is higher, still can provide power supply for product when solar illumination is low; And can power for the load of different capacity; Form voltage negative feedback circuit between described output voltage Acquisition Circuit 7, MCU4, output voltage regulator 6 and DC/DC transducer 2, improve the robustness of solar electric power supply system.
In the present embodiment, described output voltage regulator 6 is potentiometer.
Further, be also provided with ambient light detecting sensor 9, described ambient light detecting sensor 9 passes to described MCU4 after gathered light information is converted to the signal of telecommunication.When light intensity is stronger, the electric energy that described MCU4 selects described DC/DC transducer 2 to change is directly load supplying; When light is more weak, described storage battery 3 is selected to be load supplying.
Further, during for preventing light more weak, electric current in storage battery 3 refluxes, switch between output and the charging end of described storage battery 3 at the power of described DC/DC transducer 2 and be also provided with charge switch 10, the control end of described charge switch 10 is connected on described MCU4, and described MCU4 controls opening or turning off of described charge switch 10; The output of described storage battery 3 is also connected with battery tension Acquisition Circuit 11, and the voltage signal of the storage battery 3 collected is passed to described MCU4.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a solar electric power supply system, is characterized in that: comprise solar panel (1), DC/DC transducer (2), storage battery (3), MCU (4) and output voltage regulator (6);
The output of described solar panel (1) connects the voltage input end of described DC/DC transducer (2), and the power switching output of described DC/DC transducer (2) connects the charging end of described storage battery (3);
The voltage input end of described DC/DC transducer (2) is also connected with input voltage Acquisition Circuit (5), and the input voltage that described input voltage Acquisition Circuit (5) gathers DC/DC transducer (2) passes to described MCU (4);
The power switching output of described DC/DC transducer (2) is also connected with output voltage Acquisition Circuit (7), and the output voltage of collection is passed to described MCU (4) by described output voltage Acquisition Circuit (7);
The voltage controling end of described MCU (4) connects the input of described output voltage regulator (6), and the output of described output voltage regulator (6) is connected to described DC/DC transducer (2) pressure feedback port;
Described DC/DC transducer (2) power switches output and is also connected with charging current observation circuit (8), and the output of described charging current observation circuit (8) is connected to the charging current monitoring side of described MCU (4);
Described MCU (4) is connected with load, and is this load supplying.
2. solar electric power supply system according to claim 1, is characterized in that: described output voltage regulator (6) is potentiometer.
3. solar electric power supply system according to claim 1, it is characterized in that: be also provided with ambient light detecting sensor (9), after gathered light information is converted to the signal of telecommunication by described ambient light detecting sensor (9), pass to described MCU (4).
4. the solar electric power supply system according to claim 1 or 3, it is characterized in that: between the power switching output of described DC/DC transducer (2) and the charging end of described storage battery (3), be also provided with charge switch (10), the control end of described charge switch (10) is connected on described MCU (4), and described MCU (4) controls opening or turning off of described charge switch (10).
5. solar electric power supply system according to claim 4, it is characterized in that: the output of described storage battery (3) is also connected with battery tension Acquisition Circuit (11), and the voltage signal of the storage battery collected (3) is passed to described MCU (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715023.0U CN204967746U (en) | 2015-09-11 | 2015-09-11 | Solar electric power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715023.0U CN204967746U (en) | 2015-09-11 | 2015-09-11 | Solar electric power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967746U true CN204967746U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520715023.0U Active CN204967746U (en) | 2015-09-11 | 2015-09-11 | Solar electric power supply system |
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| CN (1) | CN204967746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136879A1 (en) * | 2018-01-15 | 2019-07-18 | 东汉太阳能无人机技术有限公司 | Mppt controller and power supply system provided with controller |
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2015
- 2015-09-11 CN CN201520715023.0U patent/CN204967746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136879A1 (en) * | 2018-01-15 | 2019-07-18 | 东汉太阳能无人机技术有限公司 | Mppt controller and power supply system provided with controller |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |