CN107918408A - A kind of safe and efficient small-sized solar power generator - Google Patents
A kind of safe and efficient small-sized solar power generator Download PDFInfo
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- CN107918408A CN107918408A CN201711464514.2A CN201711464514A CN107918408A CN 107918408 A CN107918408 A CN 107918408A CN 201711464514 A CN201711464514 A CN 201711464514A CN 107918408 A CN107918408 A CN 107918408A
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- photovoltaic cell
- motor
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- solar power
- power generator
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Photovoltaic Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of safe and efficient small-sized solar power generator, including base, base upper surface center is fixed with horizontal motor, wind detection unit is further fixed on base, for detecting the current wind speed of environment, horizontal motor is engaged with main shaft, main shaft is by horizontal motor relative to base rotation, swinging mounting is installed with above main shaft, pitching motor is fixedly mounted on swinging mounting side, photovoltaic cell is installed at the top of swinging mounting, photovoltaic cell is rotated by pitching motor relative to swinging mounting, and base front surface is additionally provided with RS485 interfaces；Photovoltaic cell upper surface is equipped with photosensitive unit.The present invention follows the trail of azimuth and the elevation angle of the sun by two groups of photo resistance horizontally and vertically respectively, adjustment horizontal motor and pitching motor make photovoltaic cell all the time towards the most strong direction of sunray, it is system power supply by photovoltaic cell daytime at the same time and is storage battery charging, and is powered by battery discharging with the cloudy day at night and drive LED load.
Description
Technical field
The present invention relates to solar energy generation technology field, more particularly to a kind of safe and efficient small-sized solar power generation dress
Put.
Background technology
The energy is the motive power promoted economic development with social progress, main used in the mankind since the industrial revolution
The energy is fossil energy.But its reserves is limited, substantial amounts of use can cause global environment ecology and weather generation very big
Change.And solar energy is a kind of inexhaustible and free of contamination clean energy resource, with use of the mankind to the energy
Shifted from conventional energy resource to regenerative resource, solar energy then becomes the alternative energy source of ideals of human being.And solar power generation at this stage
Device is fixed once the position for installing its photovoltaic cell, since sun irradiation angle is changing always, causes the current sun
Energy generating efficiency is not generally high, and photovoltaic cell is the core of whole solar power system, so how to improve photovoltaic electric
The transfer efficiency in pond is to be worth research.
The content of the invention
(1) technical problem solved
To solve the above-mentioned problems, the present invention provides a kind of small-sized solar power-generating control system, solar tracking is used
Technology so that photovoltaic cell controls photovoltaic cell to storing all the time towards the most strong direction of sunray according to environmental light intensity
Battery charges, and effectively raises the transfer efficiency of photovoltaic cell.
(2) technical solution
A kind of safe and efficient small-sized solar power generator, including base, the base upper surface center are fixed with water
Flat telegram machine, is further fixed on wind detection unit on the base, for detecting the current wind speed of environment, the horizontal motor is nibbled with main shaft
Closing, relative to the base rotation, swinging mounting is installed with above the main shaft by the horizontal motor for the main shaft,
The pitching motor is fixedly mounted on the swinging mounting side, and photovoltaic cell, the light are provided with the top of the swinging mounting
Volt battery is rotated by the pitching motor relative to the swinging mounting, and the base front surface is additionally provided with RS485 interfaces；It is described
Photovoltaic cell upper surface is equipped with photosensitive unit, and the photosensitive unit includes the first~the 4th light sensor and the first~the 4th electricity
Resistance, the described first~the 4th light sensor are evenly distributed on the position of east, south, west, north four of the photovoltaic cell upper surface,
Described first and the 3rd light sensor form horizontal photographic department, the deflection angle i.e. azimuth that the detection sun is westerly moved by east,
Described second and the 4th light sensor form vertical photographic department, detect the apparent altitude i.e. elevation angle of the sun；The chassis interior
Equipped with control board, the control board respectively with the horizontal motor, the wind detection unit, the pitching motor, institute
Photovoltaic cell, the RS485 interfaces and the photosensitive unit is stated to be electrically connected；
The control board include control unit, driving unit, DC-DC converter units, charge-discharge control unit,
RS485 communication units and storage battery；The photosensitive unit output level changing value, the A/D mouths for being sent into described control unit carry out
Analog-to-digital conversion, described control unit output pwm pulse signal, is connected with the input terminal of the driving unit；The driving is single
Member includes the first and second photoelectrical couplers, motor driver, horizontal motor and pitching motor, wherein first and second light
Electric coupler selects TLP521-4, and the motor driver selects eight road NPN Darlington transistor driver ULN2803, the level
Motor is 57BYG007, and the pitching motor is GSP-24RW-046, and the driving unit receives the driving of described control unit
Signal, controls the horizontal motor and the pitching motor rotating respectively, so as to fulfill the photovoltaic cell rotating；It is described
DC-DC converter units include the first~the 3rd diode, the first inductance, the first and second capacitances, the 5th and the 6th resistance, wherein
Second capacitance is electrolytic capacitor, and the input terminal of the DC-DC converter units connects the photovoltaic cell, by the photovoltaic electric
The output voltage in pond is transformed to the charging voltage of the storage battery；The charge-discharge control unit includes voltage-stablizer, the 3rd and the
Four photoelectrical couplers, the first and second relays, the 4th and the 5th diode, the second inductance, the 3rd~the 5th capacitance and the 7th
~the nine resistance, wherein the voltage-stablizer selects three terminal regulator 7805, third and fourth photoelectrical coupler is TLP521-
2, third and fourth capacitance is electrolytic capacitor, and the charge-discharge control circuit receives the control signal of described control unit,
By the switching of first and second relay, the accumulator cell charging and discharging is controlled；The RS485 communication units and institute
The electrical connection of RS485 interfaces is stated, described control unit carries out data exchange by the RS485 communication units and host computer, to dress
Operating parameter is put to modify and set.
Further, the described first~the 4th light sensor selects GM5516 type photo resistance.
Further, the wind detection unit selects air velocity transducer FC-2A3.
Further, described control unit selects microcontroller MSP430F148.
Further, photovoltaic cell specification the selection work 10~14V of voltage, operating current 1A.
Further, the storage battery specification selects 12V-7AH.
Further, the RS485 communication units select RS485 drivers MAX487.
(3) beneficial effect
It is photosensitive by two groups horizontally and vertically the present invention provides a kind of safe and efficient small-sized solar power generator
Resistance follows the trail of azimuth and the elevation angle of the sun respectively, and adjusting horizontal motor and pitching motor makes photovoltaic cell all the time towards the sun
Highlighting direction, at the same be system power supply by photovoltaic cell daytime and be storage battery charging, and at night and cloudy day by electric power storage
Tank discharge powers and drives LED load, effectively increases the transfer efficiency of photovoltaic cell, and stronger in current environment wind speed
In the case of controlled level motor make photovoltaic cell keep horizontal level, improve the security of photovoltaic cell, extend photovoltaic electric
The service life in pond, its is simple in structure, compact, easy for installation, cheap, and system power dissipation is low, and tracking precision is high, stablizes
Property and good reliability, scalability it is strong, using flexible, suitable for the solar energy such as photovoltaic Traffic alarm light, small-sized photovoltaic power station send out
In electric system.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the small-sized solar power generator of highly effective and safe according to the present invention.
Fig. 2 is a kind of functional block diagram of the small-sized solar power generator of highly effective and safe according to the present invention.
Fig. 3 is a kind of photosensitive unit circuit theory of the small-sized solar power generator of highly effective and safe according to the present invention
Figure.
Fig. 4 is a kind of driving unit circuit theory of the small-sized solar power generator of highly effective and safe according to the present invention
Figure.
Fig. 5 is a kind of DC-DC converter units electricity of the small-sized solar power generator of highly effective and safe according to the present invention
Road schematic diagram.
Fig. 6 is a kind of charge-discharge control unit electricity of the small-sized solar power generator of highly effective and safe according to the present invention
Road schematic diagram.
Embodiment
Embodiment according to the present invention is described in further details below in conjunction with the accompanying drawings.
With reference to Fig. 1 and Fig. 2, a kind of safe and efficient small-sized solar power generator, including base 1,1 upper surface of base is just
In be fixed with horizontal motor 2, wind detection unit 7 is further fixed on base 1, for detecting the current wind speed of environment, horizontal motor 2 with it is main
Axis 3 engages, and main shaft 3 is rotated by horizontal motor 2 relative to base 1, and main shaft 3 is installed with swinging mounting 4, pitching electricity above
Machine 5 is fixedly mounted on 4 side of swinging mounting, and the top of swinging mounting 4 is provided with photovoltaic cell 6, and photovoltaic cell 6 passes through pitching motor
5 rotate relative to swinging mounting 4, and 1 front of base is additionally provided with RS485 interfaces 8；1 upper surface of photovoltaic cell is equipped with photosensitive unit, sense
Light unit includes light sensor Re, light sensor Rs, light sensor Rw, light sensor Rn and resistance R1~R4, light
Line sensor Re, Rs, Rw and Rn are evenly distributed on the position of east, south, west, north four of 6 upper surface of photovoltaic cell, light sensor
Re and Rw forms horizontal photographic department, the deflection angle i.e. azimuth that the detection sun is westerly moved by east, light sensor Rs and Rn structure
Into vertical photographic department, the apparent altitude i.e. elevation angle of the sun is detected；Base 1 is internally provided with control board, control board difference
It is electrically connected with horizontal motor 2, wind detection unit 7, pitching motor 5, photovoltaic cell 6, RS485 interfaces 8 and photosensitive unit；Control electricity
Road plate includes control unit, driving unit, DC-DC converter units, charge-discharge control unit, RS485 communication units and storage battery.
As shown in figure 3, photosensitive unit includes light sensor Re, light sensor Rs, light sensor Rw, light level
Device Rn and resistance R1~R4, light sensor Re, Rs, Rw and Rn select GM5516 type photo resistance.The photosensitive electricity of GM5516 types
The light resistance of resistance：5~10K Ω, dark resistance：More than 200K Ω.Photo resistance Re and Rw form horizontal photographic department, resistance R1 and R2
Resistance value is identical, and when sunray is in azimuth direct projection, the resistance value of photo resistance Re and Rw is identical, photo resistance Rw and resistance
Level between R1 is equal with the level between photo resistance Re and resistance R2, if sunlight is not at azimuth direct projection, at two
Level occur that principal-employment or minus tolerance change, the A/D mouths that the changing value of the level is sent into control unit are handled.Similarly, light
Quick resistance Rs and Rn form vertical photographic department, will reflect sunray whether send by the level change value in elevation angle direct projection position
Enter the A/D mouths of control unit.
Wind detection unit 7 detects the current wind speed of environment, and outputs level signals are sent into the A/D mouths of control unit.When wind speed exceedes
During certain value, if photovoltaic cell is in non-horizontal position, photovoltaic cell is likely to result in because wind-force is excessive and impaired, it is therefore desirable to
Detection current environment wind speed in real time.Wind detection unit selects air velocity transducer FC-2A3, exports 0~5V voltages, measures wind speed range 0
~30m/s, the voltage magnitude of output are corresponding with air speed value.
Photosensitive unit output level changing value, the A/D mouths for being sent into control unit carry out analog-to-digital conversion, control unit output
Pwm pulse signal, is connected with the input terminal of driving unit.Control unit selects microcontroller MSP430F148, its operating voltage
For 3.3V, it is the singlechip chip that a 10 A/D of band are changed, there is superpower jamproof characteristic, and there is ultralow work(
Consumption, electric current is only 4~7mA during normal work, electric current ＜ 1mA when idle.Its work period is only a clock cycle, can be with
The frequency of the external crystal-controlled oscillation used is substantially reduced, so as to reduce electromagnetic interference.MSP430F148 has that pin is few, small, valency
The features such as lattice are low, easy to use, can reduce development cost, shorten the construction cycle.
As shown in figure 4, driving unit includes photoelectrical coupler U1 and U2, motor driver U3, horizontal motor M1 and pitching
Motor M2, wherein photoelectrical coupler U1 and U2 select TLP521-4, motor driver U3 to select eight road NPN Darlington transistor drivers
ULN2803, horizontal motor M1 are 57BYG007, and pitching motor M2 is GSP-24RW-046.Horizontal motor 57BYG007 and pitching
Motor GSP-24RW-046 is all four phase eight beat type stepper motor, when MSP430F148 output control signal PWM1, PWM2,
PWM3 and PWM4 takes high level successively, and 1C feet~4C feet of motor driver ULN2803 are followed successively by high level, thus to level
Motor 57BYG007 rotates forward the pulse signal of a step；Conversely, PWM4, PWM3, PWM2 and PWM1 take high level, horizontal motor successively
57BYG007 inverts a step.PWM5~PWM8 is the control signal of pitching motor GSP-24RW-046, driving principle and level electricity
Machine 57BYG007 is identical.Driving unit receives the drive signal of MSP430F148, respectively controlled level motor M1 and pitching motor
M2 rotatings, so as to fulfill 6 rotating of photovoltaic cell.
6 10~14V of normal working voltage of photovoltaic cell, operating current 1A or so used by due to system, and used
Storage battery be 12V-7AH, the voltage that the storage battery of 12V generally requires 13~15V charges for it, if therefore photovoltaic cell 6
Without DC-DC conversion process, can not ensure to charge for storage battery voltage stabilizing.As shown in figure 5, DC-DC converter units include two poles
Pipe D1~D3, inductance L1, capacitance C1 and C2, resistance R5 and R6, wherein capacitance C2 are electrolytic capacitor.Battery E1 is photovoltaic cell 6,
Photovoltaic cell E1 voltages are increased to by 14V by Boost circuit, are charged for storage battery voltage stabilizing.
As shown in fig. 6, charge-discharge control unit include voltage-stablizer U4, photoelectrical coupler U5A and U5B, relay S1 and S2,
Diode D4 and D5, inductance L2, capacitance C3~C5 and resistance R7~R9, wherein voltage-stablizer U4 select three terminal regulator 7805, light
Electric coupler U5A and U5B are TLP521-2, and capacitance C3 and C4 are electrolytic capacitor, and battery E2 is storage battery.Daytime, photovoltaic cell 6
Need to charge for storage battery E2, so that storage battery E2 can power LED load in night, and horizontal motor 2 and pitching motor 5
Operating voltage be also required to be provided by photovoltaic cell 6 (if the underpower of photovoltaic cell 6 to drive motor, illustrates that sunshine is very poor,
Without rotary electric machine), while control board also must continuously power.Charge-discharge control circuit needs to use two relay S1
And S2, relay S1 control storage battery E2 are charged and discharged, relay S2 controls provide control by photovoltaic cell 6 or storage battery E2
The supply voltage of circuit board processed.Daytime, relay S1 and S2 are all normally open (getting to upper end), and photovoltaic cell 6 passes through voltage stabilizing
Device 7805 is depressured to 5V, is horizontal motor 2, pitching motor 5 and control board power supply, and charges for storage battery E2, storage battery
The reversed phase hold-off diode D5 of E2 cathodes, ensures that charging process is not discharged at the same time.Night or sunshine are very poor, MSP430F148 controls
Relay S1 and S2, which is attracted, arrives lower end, and horizontal motor 2 and pitching motor 5 are stopped, and circuit board supplies storage battery E2 in order to control
Electricity, and drive LED load to work.
RS485 communication units are electrically connected with RS485 interfaces 8, MSP430F148 by RS485 communication units and host computer into
Row data exchange, modifies and sets to device operating parameter, such as wind speed threshold value, sample reference level, motor step angle
Deng.The communication distance of RS485 maximums is about 1219m, peak transfer rate 10Mbps, and the line between host computer only needs letter
Communication can be achieved in single connected " A ", " B " end with a pair of of twisted-pair feeder, very convenient, fully meets off-line measurement system
The requirement transmitted at a distance.RS485 communication units select RS485 driver MAX487, and the RE of MAX487 and DE two is enabled
Together, MAX487 is in a certain definite state can work termination, also save the I/O mouths of MSP430F148.
It is photosensitive by two groups horizontally and vertically the present invention provides a kind of safe and efficient small-sized solar power generator
Resistance follows the trail of azimuth and the elevation angle of the sun respectively, and adjusting horizontal motor and pitching motor makes photovoltaic cell all the time towards the sun
Highlighting direction, at the same be system power supply by photovoltaic cell daytime and be storage battery charging, and at night and cloudy day by electric power storage
Tank discharge powers and drives LED load, effectively increases the transfer efficiency of photovoltaic cell, and stronger in current environment wind speed
In the case of controlled level motor make photovoltaic cell keep horizontal level, improve the security of photovoltaic cell, extend photovoltaic electric
The service life in pond, its is simple in structure, compact, easy for installation, cheap, and system power dissipation is low, and tracking precision is high, stablizes
Property and good reliability, scalability it is strong, using flexible, suitable for the solar energy such as photovoltaic Traffic alarm light, small-sized photovoltaic power station send out
In electric system.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and scope is defined.On the premise of design concept of the present invention is not departed from, technology of the ordinary people in the field to the present invention
The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
All record in detail in the claims.
Claims (7)
- A kind of 1. safe and efficient small-sized solar power generator, it is characterised in that：Including base, the base upper surface center Be fixed with horizontal motor, wind detection unit be further fixed on the base, for detecting the current wind speed of environment, the horizontal motor with Main shaft engages, and the main shaft relative to the base rotation, is installed with above the main shaft and turned by the horizontal motor Dynamic stent, the pitching motor are fixedly mounted on the swinging mounting side, photovoltaic cell are provided with the top of the swinging mounting, The photovoltaic cell is rotated by the pitching motor relative to the swinging mounting, and the base front surface is additionally provided with RS485 and connects Mouthful；The photovoltaic cell upper surface is equipped with photosensitive unit, and the photosensitive unit includes the first~the 4th light sensor and first ~the four resistance, the described first~the 4th light sensor are evenly distributed on the east, south, west, north of the photovoltaic cell upper surface Four positions, described first and the 3rd light sensor form horizontal photographic department, the deflection angle that the detection sun is westerly moved by east That is azimuth, described second and the 4th light sensor form vertical photographic department, detect the apparent altitude i.e. elevation angle of the sun；It is described Chassis interior is equipped with control board, the control board respectively with the horizontal motor, the wind detection unit, the pitching Motor, the photovoltaic cell, the RS485 interfaces and the photosensitive unit are electrically connected；The control board includes control unit, driving unit, DC-DC converter units, charge-discharge control unit, RS485 and leads to Believe unit and storage battery；The photosensitive unit output level changing value, the A/D mouths for being sent into described control unit carry out modulus turn Change, described control unit output pwm pulse signal, is connected with the input terminal of the driving unit；The driving unit includes First and second photoelectrical couplers, motor driver, horizontal motor and pitching motor, wherein first and second photoelectric coupling Device selects TLP521-4, and the motor driver selects eight road NPN Darlington transistor driver ULN2803, and the horizontal motor is 57BYG007, the pitching motor are GSP-24RW-046, and the driving unit receives the drive signal of described control unit, point The horizontal motor and the pitching motor rotating are not controlled, so as to fulfill the photovoltaic cell rotating；The DC-DC becomes Changing unit includes the first~the 3rd diode, the first inductance, the first and second capacitances, the 5th and the 6th resistance, wherein described the Two capacitances are electrolytic capacitor, and the input terminal of the DC-DC converter units connects the photovoltaic cell, by the defeated of the photovoltaic cell Go out the charging voltage that voltage transformation is the storage battery；The charge-discharge control unit includes voltage-stablizer, the third and fourth photoelectricity Coupler, the first and second relays, the 4th and the 5th diode, the second inductance, the 3rd~the 5th capacitance and the 7th~the 9th Resistance, wherein the voltage-stablizer selects three terminal regulator 7805, third and fourth photoelectrical coupler is TLP521-2, described Third and fourth capacitance is electrolytic capacitor, and the charge-discharge control circuit receives the control signal of described control unit, passes through institute The switching of the first and second relays is stated, controls the accumulator cell charging and discharging；The RS485 communication units with it is described RS485 interfaces are electrically connected, and described control unit carries out data exchange by the RS485 communication units and host computer, to device Operating parameter is modified and set.
- A kind of 2. safe and efficient small-sized solar power generator according to claim 1, it is characterised in that：Described first ~the four light sensor selects GM5516 type photo resistance.
- A kind of 3. safe and efficient small-sized solar power generator according to claim 1, it is characterised in that：The survey wind Unit selects air velocity transducer FC-2A3.
- A kind of 4. safe and efficient small-sized solar power generator according to claim 1, it is characterised in that：The control Unit selects microcontroller MSP430F148.
- A kind of 5. safe and efficient small-sized solar power generator according to claim 1, it is characterised in that：The photovoltaic Battery specifications selection work 10~14V of voltage, operating current 1A.
- A kind of 6. safe and efficient small-sized solar power generator according to claim 1, it is characterised in that：The electric power storage Pond specification selects 12V-7AH.
- A kind of 7. safe and efficient small-sized solar power generator according to claim 1, it is characterised in that：It is described RS485 communication units select RS485 drivers MAX487.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464514.2A CN107918408A (en) | 2017-12-28 | 2017-12-28 | A kind of safe and efficient small-sized solar power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464514.2A CN107918408A (en) | 2017-12-28 | 2017-12-28 | A kind of safe and efficient small-sized solar power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107918408A true CN107918408A (en) | 2018-04-17 |
Family
ID=61894408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711464514.2A Withdrawn CN107918408A (en) | 2017-12-28 | 2017-12-28 | A kind of safe and efficient small-sized solar power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107918408A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796609A (en) * | 2020-08-18 | 2020-10-20 | 中腾微网（北京）科技有限公司 | Automatic tracking type solar photovoltaic power generation system and method |
| CN113654655A (en) * | 2021-08-24 | 2021-11-16 | 宁波工程学院 | Solar sun-tracking visible light photoresistor detection method |
-
2017
- 2017-12-28 CN CN201711464514.2A patent/CN107918408A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796609A (en) * | 2020-08-18 | 2020-10-20 | 中腾微网（北京）科技有限公司 | Automatic tracking type solar photovoltaic power generation system and method |
| CN111796609B (en) * | 2020-08-18 | 2021-08-03 | 中腾微网（北京）科技有限公司 | Automatic tracking type solar photovoltaic power generation system and method |
| CN113654655A (en) * | 2021-08-24 | 2021-11-16 | 宁波工程学院 | Solar sun-tracking visible light photoresistor detection method |
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Application publication date: 20180417 |