CN108832709A - A kind of wireless electric vehicle charging device based on photovoltaic power generation - Google Patents
A kind of wireless electric vehicle charging device based on photovoltaic power generation Download PDFInfo
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- CN108832709A CN108832709A CN201810720543.9A CN201810720543A CN108832709A CN 108832709 A CN108832709 A CN 108832709A CN 201810720543 A CN201810720543 A CN 201810720543A CN 108832709 A CN108832709 A CN 108832709A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H02J7/0021—
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- H02J7/0026—
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- H02J7/025—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
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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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention discloses a kind of wireless electric vehicle charging devices based on photovoltaic power generation, including solar power generation, parallel resonance, the big module of power supply energy storage three.Solar electrical energy generation module includes solar battery array, charge-discharge control circuit, battery, inverter module, voltage and current acquisition module, processor, communication module, MPPT circuit and motor drag module; parallel resonance module includes half-bridge topology circuit, transmitting and receiving coil, resonant capacitance, capacitance compensation module and position adjustment block, and electric energy storage module includes charging control circuit, Vehicular accumulator cell, temperature collecting module and over voltage, excess temperature, overcharges protection and car-mounted display cue module.Present invention has the advantages that：Solar panel remains that maximum power electric energy transmits, and improves photoelectric conversion efficiency；The efficiency of transmission of electric energy is improved to improve dispatch coil positive area；Extend battery and equipment dependability；And keep device more humane, intelligent with the connection of vehicle-carrying display screen.
Description
Technical field
The present invention relates to a kind of wireless electric vehicle charging device more particularly to a kind of electric cars based on photovoltaic power generation
Wireless charging device.
Background technique
Wireless power transmission (Wireless Power Transmission, WPT) is also known as wireless power transmission, non-contact
Electric energy transmission, is relaying energy (such as electromagnetism field energy, laser, microwave and the machine that other forms are converted electrical energy by transmitter
Tool wave etc.), after sky transmits a distance, electric energy is being converted to for energy is relayed by receiver, is realizing wireless power transmission.
According to the difference for relaying form of energy in energy transport, wireless power transmission can be divided into：Magnetic (field) manifold type, electricity (field) coupling
Box-like, electromagnetic radiation formula (such as solar radiation), mechanical wave manifold type (ultrasound).Wherein, magnetic coupling type is current (at the beginning of 21 century)
A kind of wireless power transmission mode burning the hotest is studied, that is, high frequency electric source is loaded into transmitting coil, makes transmitting coil
High frequency magnetic field is generated under power supply excitation, for receiving coil under the effect of this high frequency magnetic field, coupling generates electric current, realizes radio energy
Transmission.
With the high speed development of science and technology, the update of electronic product is very fast, intelligent requirements of the people to electronics
Constantly improving.In recent years, some portable electronics such as laptop, mobile phone, music player, electric toothbrush, shaver
Etc. mobile devices require battery and charging.Power supply line continually plugs, both dangerous, is also prone to wear.Some chargers, electricity
Line, socket standard are also not exclusively unified, have both caused waste in this way, and have also formed the pollution to environment, and under special occasions,
For example in mine and oil exploitation, there are hidden danger in safety for traditional power transmission mode.Isolated island, work the hilltop base
It stands, it is highly difficult using the conventional electrical distribution mode to install electric wiring.In the scenario above, wireless power transmission just more seems important and urgent
It cuts, thus it is by the U.S.《Technology review》Magazine is chosen as one of following ten big direction of scientific rersearch.In terms of wireless power transmission, China
Research just starts to walk, more American-European backwardness.
Summary of the invention
The technical problem to be solved by the present invention is to：The present invention in solar electrical energy generation module using maximum energy utilization rate and
The thought of maximum transmission power conveys the electric energy of maximum power while improving photoelectric conversion rate as far as possible；In parallel resonance
Using the thought for improving efficiency of transmission in module, by adjusting the position of receiving coil, increasing by two coils just as far as possible
To area, the item number that magnetic induction line passes through is improved, the loss of energy is avoided, adjusts resonance point at the same time, make the resonance of receiving end
Point and transmitting terminal resonance point as close as, and then improve energy efficiency of transmission；Since battery apparatus is in charging process
In, it can be because the reasons such as excess temperature, short circuit occur explosion and cause personal injury and property loss, and this wireless device need not will produce
Product connect with any power supply and can charge, and increase over-voltage, it is under-voltage, overcharge, the protection such as excess temperature, can not only guarantee to set
Standby safety in use, can also extend battery, and can be more by the connection with vehicle-carrying display screen
Intuitive observation charged state, facilitates intelligence.
To realize that the above technical purpose, the present invention will take following technical scheme：A kind of electronic vapour based on photovoltaic power generation
Vehicle radio charging unit, by solar electrical energy generation module in device, parallel resonance module and power supply energy-storage module three parts composition：
1, solar cell module is by solar panel, pitching motor, horizontal motor, energy storage module and control
Five part of circuit composition processed, wherein solar panel is using a kind of novel Cu (In, Ga) Se2 thin film solar electricity
Pond, relative to traditional silicon photocell, hull cell is a kind of excellent sun light absorbing material, and there is graded band-gap gap (to lead
Energy level difference between band and valence band) polynary semiconductor material, solar absorption spectral region can be expanded, and then improve photoelectricity
Transfer efficiency, and this based thin film solar cell is up to the present, finds no light radiation and is led to performance degradation effect
(SWE), moreover its weight relative to traditional silicon photocell reduces 80%, therefore is easier to adjust the angle, and use
Service life is more big.And due to adjusting angle, slowly therefore motor is using AC servo motor, in low speed not
It will appear oscillation phenomenon, and exported in rated speed for constant moment of force, be constant power output in rated speed.It is fine in weather
When good, on the one hand the data transmission of meteorological observatory is sent in dsp chip by communication module, driving electricity is controlled by DSP
Road driving pitching motor and horizontal motor make solar panel keep maximum effective area in real time, wherein AC servo motor
Power supply got by the conversion of inverter module.On the other hand solar panel is made further to export maximum using MPPT module
The electric energy of power provides efficient electric energy for parallel resonance module；
2, parallel resonance module uses the electromagnetism thought of magnetic coupling resonance, and traditional magnetic coupling is fixed in fixed frequency
Guarantee that it achievees the effect that resonance is load supplying under transmission range, but in actual use, due to being easy to when parking
It causes dispatch coil positive area to reduce, and is not that each receiving coil is attained by most due to hardware circuit
Good resonance point, therefore efficiency of transmission can be made to greatly reduce.On the one hand the present invention passes through control module on traditional hardware foundation
Collection voltages electric current, it is continuous to control motor to find optimal charge position, it is another to improve the positive area of dispatch coil
Aspect controls the quantity that relay constantly increases or decreases shunt capacitance in circuit by control module, so that receiving end and hair
The resonance point for penetrating end is more nearly, therefore the efficiency of transmission of electric energy can be improved by the two methods；
3, power supply energy-storage module mainly increases overheat protector, under-voltage protection, overvoltage protection to Vehicular accumulator cell, overcharges
Protection can guarantee generate and explode because temperature is excessively high when battery uses in this way, can be to avoid casualties and wealth
Produce loss, but also can guarantee battery carry out in the best condition always using, to extend battery life, and by with vehicle
Carry display screen connection, the state of power supply can be observed in real time and charging complete prompt etc., facilitate intelligence.
According to above technical scheme, beneficial effect below may be implemented：
1. making effective area keep maximum by the angle for adjusting solar panel in real time；
2. keeping solar panel with the output electric energy of maximum power by MPPT circuit；
3. making the positive area of dispatch coil keep maximum by mechanical device；
4. controlling relay by control circuit increases capacitor in parallel in circuit, make the humorous of receiving portion and emitting portion
Vibration point is close；
5. overcharge protection circuit keeps the use of equipment safer by increasing over-voltage, under-voltage, excess temperature to Vehicular accumulator cell
Reliably, and being connected with vehicle-carrying display screen facilitates equipment more intelligently；
6. since electric car cruising ability is poor, the reasons such as charging inconvenience can be in highway, scenic spot and remote
This equipment is installed in area, convenient and efficient to improve the continuation of the journey range of electric car.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure；
Fig. 2 is flow chart of the invention；
Fig. 3 is solar cell panel structure schematic diagram of the invention；
Fig. 4 is magnet coupled resonant type energy transmission schematic diagram of the invention；
Fig. 5 is transmitting coil structural schematic diagram of the invention；
Fig. 6 is position adjustment block structural schematic diagram of the invention；
Fig. 7 is overall structure diagram of the invention.
In figure：
1. 2. screw of solar panel, 3. pitching motor
4. 5. horizontal motor of pitching motor pedestal, 6. transmitting coil
7. 8. transmitting coil shell of transmitting coil pedestal, 9. slideway
10. 11. receiving coil fixed plate of screwed pipe, 12. motion pulley
13. 14. receiving coil of displacement motor, 15. solar panel support column
16. 17. automobile of wireless power transmission transmitting terminal, 18. parking stall
Specific embodiment
As shown in Figures 1 to 7, the present invention is a kind of wireless electric vehicle charging device based on photovoltaic power generation, and one is divided into
For three parts：Solar electrical energy generation module, parallel resonance module and power supply energy-storage module.Solar electrical energy generation module can lead to
The regulation for crossing motor makes effective area keep maximum, and so that transimission power is kept optimal by MPPT control circuit, wherein：Too
Positive energy solar panel 1 makes luminous energy be converted into electric energy, and screw 2 plays fixed pitching motor 3, and pitching motor 3 is solar battery
Plate 1 adjusts pitch angle, and pitching motor pedestal 4 plays a supportive role to pitching motor 3, and horizontal motor 5 becomes solar panel 1
Change level angle.Parallel resonance module can seek optimum position by mechanical device to improve the positive area of dispatch coil,
And make the resonance point of receiving end closer to the resonance point of transmitting terminal by increasing or decreasing capacitor number, wherein：Transmitting
Coil 6 is used for transmission the device of electric energy；Transmitting coil pedestal 7 reduces the transmission range of dispatch coil as far as possible, and due to ground
Under seep water sometimes, can prevent transmitting coil 6 from being corroded, and then the service life of extension coil；Transmitting coil shell 8 is most
Nonmetallic materials may be used, to reduce the loss of electric energy；Slideway 9 is convenient for fixed motion pulley 12 and facilitates pulley mobile；Spiral shell
Line pipe 10 by displacement motor 13 on screw thread movement come achieve the purpose that make receiving coil 14 move；Receiving coil fixed plate
11 are fixed to coil on motor；Motion pulley 12 facilitates the movement of entire coil；Displacement motor 13 is that the movement of coil provides
Power；Receiving coil 14 is used to receive the device of electric energy.In addition：Solar panel support column 15 makes solar panel have one
A good light environment；Wireless power transmission transmitting terminal 16 is used to transmit electric energy.
A kind of wireless electric vehicle charging device working principle based on photovoltaic power generation of the present invention is as follows：In device
Transmitting electric energy part and reception electric energy part do not have to the purpose that energy transmission can be carried out by external circuit, and device is based on electromagnetism
The principle of coupled resonance, transmitting terminal use the LC series resonant circuit based on half-bridge topology, and receiving end is then using in parallel based on LC
Resonance circuit make the positive area of dispatch coil by the regulation of apparatus under the premise of transmission range is unalterable
Maximum, and the number of circuit in parallel capacitor is received come by way of making the resonance point of dispatch coil be close, to protect adjusting
Card transmission electric energy efficiency maximizes.
Claims (10)
1. a kind of wireless electric vehicle charging device based on photovoltaic power generation, including：Solar electrical energy generation module, parallel resonance mould
Block, power supply energy-storage module, the solar electrical energy generation module includes solar battery array, charge-discharge control circuit, battery, inverse
Become module, voltage and current acquisition module, dsp processor, communication module, it is characterized in that：The solar electrical energy generation module further includes
MPPT circuit and motor drag module.
2. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 1, it is characterized in that：It is described
Solar battery array is formed by solar panel, the solar panel respectively with MPPT circuit and motor drag module
It is connected, the motor drag module includes the pitching motor and control solar energy for controlling solar panel pitch angle size
The horizontal motor of solar panel horizontal rotation angle, and pitching motor and level electricity are controlled by dsp processor and driving circuit
Machine come adjust solar panel receive solar energy rotation angle；The MPPT module connect with solar battery array, with
Dsp processor interconnection.
3. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 2, it is characterized in that：It is described
Solar panel is Cu (In, Ga) Se2 thin-film solar cells.
4. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 1, it is characterized in that：It is described
Parallel resonance module includes：Half-bridge DC/DC topological circuit, transmitting coil, receiving coil, resonance modules, capacitance compensation module and
Position adjustment block, the resonance modules are connected with capacitance compensation module；Position adjustment block and receiving coil are connected with each other.
5. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 4, it is characterized in that：It is described
Position adjustment block includes screwed pipe, sliding rail, motion pulley, displacement motor, and the sliding rail is placed in above automobile chassis, movement
Pulley is located among sliding rail, the screwed pipe be mutually perpendicular to place and screwed steel pipe, the displacement motor be upper and lower
Two two orthogonal screwed pipes that are fixed together and connect, are fixed with below the displacement motor being fixed together
Receiving coil, when electric car is when parking stall is come to a complete stop, displacement motor drives receiving coil constantly to adjust position, works as adjustment
When position maximum to dispatch coil positive area, that is, efficiency of transmission highest when, stop position is adjusted and is charged.
6. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 4, it is characterized in that：It is described
The capacitor of capacitance compensation module, which is connected on relay and controls cut-offfing for relay by control circuit, to be increased and adds deduct
The number of few shunt capacitance is to make the resonance point of receiving coil be close with the resonance point of transmitting coil.
7. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 1, it is characterized in that：It is described
Power supply energy-storage module includes：Charging control circuit, Vehicular accumulator cell module, temperature collecting module, overvoltage protection, under-voltage protection,
Overheat protector overcharges protective module and car-mounted display cue module, the overvoltage protection, under-voltage protection and overcharges protective module and is
It is connected to the circuit of Vehicular accumulator cell input terminal, the acquisition of input voltage and Real-time Feedback is given when by charging to Vehicular accumulator cell
Charging control circuit carries out judging whether to charge；Overheat protector is connect with temperature collecting module, around to battery
The temperature acquisition of environment simultaneously feeds back to single-chip microcontroller to control charging process；The car-mounted display cue module includes vehicle-mounted
It display screen and is connect with charge control module.
8. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 7, it is characterized in that：It is described
Charging control circuit controls charging circuit by controlling the on-off of metal-oxide-semiconductor by single-chip microcontroller, and crosses USB and turn 232 Serial Port Lines and vehicle
Display screen is carried to be connected to reflect the status information of battery.
9. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 1, it is characterized in that：It is described
Battery stores electricity energy provides electric energy for transmitting coil.
10. a kind of wireless electric vehicle charging device based on photovoltaic power generation according to claim 6, it is characterized in that：Benefit
Concatenated lc circuit is set to generate oscillation with half-bridge topology circuit, primary coil/transmitting coil makes pair by alternating flux coupling principle
Sideline circle/receiving coil generates induced electromotive force, and the parallel LC circuit on secondary side is made to generate oscillation transmission electric energy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810720543.9A CN108832709A (en) | 2018-07-02 | 2018-07-02 | A kind of wireless electric vehicle charging device based on photovoltaic power generation |
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Cited By (6)
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| CN109327070A (en) * | 2018-11-30 | 2019-02-12 | 中国地质大学（武汉） | A kind of solar energy radio charging station for domestic intelligent equipment |
| CN110979043A (en) * | 2020-03-04 | 2020-04-10 | 寿光亿德照明科技有限公司 | Mobile instant charging system for electric automobile on highway |
| CN112119918A (en) * | 2020-08-12 | 2020-12-25 | 复旦大学 | Wireless charging optical radiation mouse cage device |
| CN112436442A (en) * | 2020-04-16 | 2021-03-02 | 钱根新 | Cable equipment for municipal engineering field |
| CN112467630A (en) * | 2020-04-16 | 2021-03-09 | 钱根新 | Cable construction equipment |
| CN115416510A (en) * | 2022-10-08 | 2022-12-02 | 湖南汽车工程职业学院 | Parking space wireless charging system based on light storage and charging and discharging integration |
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Application publication date: 20181116 |