CN109066795A - A kind of compound energy wireless charging device - Google Patents
A kind of compound energy wireless charging device Download PDFInfo
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- CN109066795A CN109066795A CN201811057911.2A CN201811057911A CN109066795A CN 109066795 A CN109066795 A CN 109066795A CN 201811057911 A CN201811057911 A CN 201811057911A CN 109066795 A CN109066795 A CN 109066795A
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 24
- 229910052744 lithium Inorganic materials 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 20
- 238000007726 management method Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H02J3/385—
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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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of compound energy wireless charging device, including sequentially connected energy acquisition module, energy process module, DC/DC control module, wireless transmission and receiving module and electric energy management module；When use, the energy acquisition module includes light energy collecting part, wind collecting part, kinetic energy collecting part, sun energy, wind energy and body kinetic energy are absorbed respectively and convert electric energy for above-mentioned various energy, it is handled by energy process module, after DC/DC control module convergence boosting, the wirelessly use of supply target device or the storage under the adjusting of electric energy management module of wireless transmission and receiving module is utilized.The present invention solves the problems, such as that portable electronic product in the prior art is continued a journey by scheme of the renewable energy in conjunction with wireless charging technology.
Description
Technical field
The present invention relates to field of new energy technologies, specifically, more particularly to a kind of compound energy wireless charging device.
Background technique
Dramatic change has occurred in 21 century world energy sources structure, has become world's warp in view of energy crisis and environmental pollution
Two very important hang-ups in Ji development, the mankind start the research that sight is turned to renewable and clean energy resource power supply system.Cause
This multifarious energy resource structure based on resourceful, clean and environmental protection renewable energy replaces tight with scarcity of resources, pollution
Energy resource structure based on the traditional fossil energy of weight has become one of focus concerned by people.
There are following problems for traditional regenerative resource power supply system: such as traditional solar energy, the single energy of wind energy are not
Can be round-the-clock, it generates electricity in maximum efficiency, and energy sources are in the form of a single, vulnerable to region, the influence of weather and environment；Energy
The uncertainty in source results in the imbalance of generated energy and electricity consumption, therefore they all must could stablize confession by battery
Electricity, but generated energy is influenced very big by external environment daily, which results in battery groups to be chronically at power shortage shape
State, this is also the reason of causing battery group service life to reduce；Existing renewable and clean energy resource power supply unit volume all compares
It is larger, it has not been convenient to carry, application scenarios are restricted greatly.
With the rapid development of electronics and information industry, portable electronic product has obtained extensive utilization, since people are to it
The limitation of dependence increasingly improved and battery durable ability further develops it, the powerup issue of portable electronic product
As one of focus concerned by people at present.Wireless charging technology is supplied with its unique advantage in portable electronic products such as mobile phones
Electrical domain is gradually popularized and is come, but at this stage that wireless charging Technology application is less in the case of regenerative resource power supply.
This patent devises a kind of multi-energy complementation wireless charging suit based on renewable and clean energy resource.When people outdoors
When traveling, which can comprehensively utilize solar energy, three kinds of renewable and clean energy resources of wind energy and body kinetic energy generate electricity, device
Energy resource collecting module complete preliminary treatment for electric energy, filtering, and energy is sent to DC-DC conversion module, by controller
It realizes the maximum power algorithm of different energy sources, then by controller detection busbar voltage and load end electric current, adjusts corresponding charging
Strategy carries out lithium battery and load the wireless power of different priorities.This suit is a kind of energy conservation, efficiently, environmentally friendly and complete
The power supply unit of weather, and there is the features such as cost performance is high, and various energy resources are complementary, possess higher practicability and the feature of environmental protection.
Summary of the invention
Affected by environment big according to single renewable energy charging unit set forth above, the unstable technology of using effect is asked
Topic, and a kind of compound energy wireless charging device is provided.Present invention comprehensive utilization solar energy, wind energy and three kinds of body kinetic energy can be again
User's use that raw clean energy resource generates electricity for outdoor activities carries out wireless charging for its electronic equipment carried.
The technological means that the present invention uses is as follows:
A kind of compound energy wireless charging device, including sequentially connected energy acquisition module, energy process module, DC/
DC control module, wireless transmission and receiving module and electric energy management module；
In use, the energy acquisition module includes light energy collecting part, wind collecting part, kinetic energy collecting part, divide
Not Xi Shou sun can, wind energy and body kinetic energy and convert electric energy for above-mentioned various energy, handled by energy process module,
After DC/DC control module convergence boosting, using wireless transmission and receiving module wirelessly in electric energy management mould
Block adjusts lower supply target device and uses or store.
Further, the light energy collecting part include muti-piece in parallel or series, received solar energy to be converted
For the solar film battery array of electric energy；The wind collecting part includes several small DCs to collect wind energy
Machine；The kinetic energy collecting part includes the decelerating motor for collecting the kinetic energy generated when human motion.
Further, the energy process module includes the operating status prison of filter circuit, Dolby circuit and branch of powering
Survey and back-flowing proof circuit；It is described power supply branch monitoring running state and back-flowing proof circuit by comparing diode both ends partial pressure with
The size of reference voltage judge the branch whether normal operation, output high electricity when partial pressure is greater than reference voltage when diode both ends
It is flat, low level is exported when partial pressure is less than reference voltage when diode both ends, detection signal sends controller to and carries out circuit control.
Further, the electric energy management module includes that controller, voltage detecting circuit, current detection circuit, control are opened
Powered-down road, lithium battery and load；
The end voltage of the voltage detecting circuit acquisition wireless receiving module, the end voltage transmit after carrying out A/D conversion
To controller, the controller judges whether former side energy collected is sufficient by the end voltage of coil；
The end electric current of the current detection circuit acquisition loading interfaces, the end electric current are transferred to control after carrying out A/D conversion
Whether device processed, the controller have whether electric current has accessed load come decision circuitry by loading interfaces；
The controller is real by control switch circuit according to the management and load supplying strategy of default lithium battery impulse electricity
The management of existing charging and discharging lithium battery and load power consumption control.
Further, the management of the charging and discharging lithium battery includes: with load supplying strategy
When non-loaded, charged by wireless receiving loft circle to lithium battery；
When having load and former side energy abundance, pass through wireless receiving loft circle powering load；
When having load and inadequate former side energy, pass through lithium battery powering load.
Further, the DC/DC control module according to luminous energy MPPT maximum power point tracking strategy maximize wireless transmission with
The power delivery capabilities of receiving module, the luminous energy MPPT maximum power point tracking strategy include:
Step 1: apparatus for initializing parameter and the output voltage U for controlling solar film batteryAEqual to solar energy film electricity
The corresponding output voltage V of pond maximum power point0；
Step 2: the virtual voltage V at the solar film battery both ends that storage is acquired by voltage collection circuitAAnd by electricity
The actual output current I of the solar film battery of current detection circuit acquisitionA, calculate and store solar film battery at this time
Output power PA
Step 3: adjustment solar film battery output voltage VBEqual to VA+ Δ V ', Δ V ' are voltage disturbance step-length, storage
At this time by the actual output current I of the solar film battery of current detection circuit acquisitionB, calculate and to store solar energy at this time thin
The output power P of film batteryB；
Step 4: solar film battery output voltage V when adjustmentCEqual to VAΔ V ' is stored at this time by current detection circuit
The actual output current I of the solar film battery of acquisitionC, calculate and store the output power P of solar film battery at this timeC；
Step 5: comparing PAAnd PBIf PAMore than or equal to PB, step 6 is executed, it is no to then follow the steps 7；
Step 6: comparing PAAnd PCIf PAMore than or equal to PC, control direct voltage output VA, Δ V '=Δ V/2, wherein Δ V
For unit voltage disturbance step-length, direct voltage output V is otherwise controlledC, Δ V '=Δ V, return step 3；
Step 7: comparing PAAnd PCIf PAMore than or equal to PC, control direct voltage output VB, Δ V '=Δ V, otherwise control is straight
Flow voltage output VA, Δ V '=Δ V, return step 3.
Compared with the prior art, the invention has the following advantages that
The invention discloses a kind of multi-energy complementation wireless charging device based on renewable and clean energy resource.When people outdoors
When traveling, which can comprehensively utilize solar energy, three kinds of renewable and clean energy resources of wind energy and body kinetic energy generate electricity, device
Energy acquisition module complete for after the preliminary treatment of electric energy, filtering, energy is sent to DC-DC conversion module, by controller
It realizes the maximum power algorithm of different energy sources, then by controller detection busbar voltage and load end electric current, adjusts corresponding charging
Strategy carries out lithium battery and load the wireless power of different priorities.Charging unit disclosed by the invention energy conservation, efficiently,
Environmental protection and can all weather operations, have the characteristics that cost performance height, various energy resources it is complementary.
The present invention can be widely popularized in the fields such as portable unit and wearable device based on the above reasons.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is wireless charging apparatus system block diagram of the present invention.
Fig. 2 is wireless charging device circuit schematic diagram of the present invention.
Fig. 3 is voltage detecting circuit figure in the embodiment of the present invention.
Fig. 4 is current detection circuit figure in the embodiment of the present invention.
Fig. 5 is charging protective circuit of lithium cell figure in the embodiment of the present invention.
Fig. 6 is wind energy power generation part schematic illustration in the embodiment of the present invention.
Fig. 7 is solar power generation Some principles schematic diagram in the embodiment of the present invention.
Fig. 8 is kinetic energy power generation Some principles schematic diagram in the embodiment of the present invention.
Fig. 9 is energy process module circuit diagram in the embodiment of the present invention.
Figure 10 is DC/DC control module functional block diagram in the present invention.
Figure 11 is DC/DC control module circuit diagram in the embodiment of the present invention.
Figure 12 is to be suitable for solar maximum power tracking strategy flow chart in the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.It is real to the description of at least one exemplary embodiment below
It is merely illustrative on border, never as to the present invention and its application or any restrictions used.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As shown in Figs. 1-2, the present invention provides a kind of compound energy wireless charging devices, including sequentially connected energy to adopt
Collect module, energy process module, DC/DC control module, wireless transmission and receiving module and electric energy management module；In use,
The energy acquisition module includes light energy collecting part, wind collecting part, kinetic energy collecting part, absorbs sun energy, wind energy respectively
It is converted into electric energy with body kinetic energy and by above-mentioned various energy, is handled by energy process module, is controlled through the DC/DC
After module convergence boosting, target wirelessly is supplied under the adjusting of electric energy management module using wireless transmission and receiving module
Equipment uses or storage.
As the preferable embodiment of the present invention, as shown in fig. 7, light energy collecting part include muti-piece in parallel or series too
Positive energy hull cell array, converts electric energy for received solar energy by solar film battery array.As shown in fig. 6,
Wind collecting part includes several DC micro-motors, collects wind energy by DC micro-motor, is existed using provided with blades moving winding
Cutting movement is done in magnetic field converts electric energy for it.As shown in figure 8, kinetic energy collecting part includes generating when collecting human motion
The decelerating motor of kinetic energy carries out rectification processing by bridge circuit and is converted into electric energy.Thus device obtains three road direct current energies.
Energy process module includes filter circuit, the monitoring running state of Dolby circuit and branch of powering and back-flowing proof electricity
Road；The monitoring running state and back-flowing proof circuit of the power supply branch divide big with reference voltage by comparing diode both ends
It is small judge the branch whether normal operation, when diode both ends partial pressure be greater than reference voltage when export high level, when diode two
End partial pressure exports low level when being less than reference voltage, detection signal sends controller to and carries out circuit control.
Specifically, as shown in figure 9, energy process module mainly to acquisition come three kinds of energy be filtered, noise reduction process.
The module will also realize the condition monitoring to each power supply branch and prevent from recoiling simultaneously, when the appearance for detecting this branch
When failure, cutting in time is contacted with subsequent conditioning circuit.Wherein power branch monitoring running state and back-flowing proof circuit in, benefit
It prevents the reversed punching on route electric with the forward conduction principle of Schottky diode D1, by comparing diode both ends partial pressure, puts
Big treated voltage and reference voltage VrefSize judge the branch whether normal operation, when voltage be greater than VrefWhen output it is high
Level, when voltage is less than VrefWhen export low level, detection signal is transferred to the control that single-chip microcontroller carries out circuit.
As shown in figs. 10-11, the function of DC/DC control module mainly realizes luminous energy, three wind energy, kinetic energy electricity generation modules
It collects the unified management of electric energy, pool together.And the tracking to the maximum power point of luminous energy is realized according to MPPT algorithm
(MPPT), so that the wireless transmission being followed by and wireless receiving coil reach maximum power delivery capabilities.Three kinds of collected electricity
Parallel output after unifying voltage can be risen to by DC/DC module, wherein DC/DC module is by control unit output impulse modulation letter
Number (PWM) control.Voltage, electric current Acquisition Circuit send voltage and current signal to control unit, so as to control unit progress
The tracking of the maximum power point of device of solar generating.
As embodiment preferable in the present invention, DC/DC control module is according to luminous energy maximum power point in the present embodiment
Tracking strategy maximizes the power delivery capabilities of wireless transmission and receiving module, as shown in figure 12, luminous energy MPPT maximum power point tracking
Strategy includes: step 1: apparatus for initializing parameter and the output voltage U for controlling solar film batteryAEqual to solar energy film electricity
The corresponding output voltage V of pond maximum power point0；
Step 2: the virtual voltage V at the solar film battery both ends that storage is acquired by voltage collection circuitAAnd by electricity
The actual output current I of the solar film battery of current detection circuit acquisitionA, calculate and store solar film battery at this time
Output power PA
Step 3: adjustment solar film battery output voltage VBEqual to VA+ Δ V ', Δ V ' are voltage disturbance step-length, storage
At this time by the actual output current I of the solar film battery of current detection circuit acquisitionB, calculate and to store solar energy at this time thin
The output power P of film batteryB；
Step 4: solar film battery output voltage V when adjustmentCEqual to VAΔ V ' is stored at this time by current detection circuit
The actual output current I of the solar film battery of acquisitionC, calculate and store the output power P of solar film battery at this timeC；
Step 5: comparing PAAnd PBIf PAMore than or equal to PB, step 6 is executed, it is no to then follow the steps 7；
Step 6: comparing PAAnd PCIf PAMore than or equal to PC, control direct voltage output VA, Δ V '=Δ V/2, wherein Δ V
For unit voltage disturbance step-length, direct voltage output V is otherwise controlledC, Δ V '=Δ V, return step 3；
Step 7: comparing PAAnd PCIf PAMore than or equal to PC, control direct voltage output VB, Δ V '=Δ V, otherwise control is straight
Flow voltage output VA, Δ V '=Δ V, return step 3.
As shown in figure 5, wireless transmission and receiving module is made of the circuit of coil and auxiliary in the present embodiment, it is wireless to send out
It penetrates module to be responsible for generating alternating magnetic field, receiving coil connects bridge circuit first and rectified in wireless receiving module, Zhi Houyu
TP4056 is the circuit composition of main control chip, realizes the overcurrent protection to subsequent lithium battery charging process and Charge Management.
Electric energy management module includes controller, voltage detecting circuit, current detection circuit, control switch electricity in the present embodiment
Road, lithium battery and load.The voltage detecting circuit is as shown in figure 3, end voltage to acquire wireless receiving module, the end
Voltage is transferred to controller after carrying out A/D conversion, and the controller judges former side energy collected by the end voltage of coil
Whether amount is sufficient.As shown in figure 4, acquiring the end electric current of loading interfaces, the end electric current carries out A/D and turns the current detection circuit
Controller is transferred to after changing, whether the controller has whether electric current has accessed load come decision circuitry by loading interfaces.Institute
It states controller and lithium battery punching is realized by control switch circuit according to the management and load supplying strategy of default lithium battery impulse electricity
The management of electric discharge and load power consumption control.When the management of the lithium battery impulse electricity and load supplying strategy include: non-loaded, lead to
Wireless receiving loft circle is crossed to charge to lithium battery；When having load and former side energy abundance, by wireless receiving loft circle to load
Power supply；When having load and inadequate former side energy, pass through lithium battery powering load.
Specifically, as shown in Fig. 2, in the present embodiment: non-loaded: K1 is closed, and K2, K3 are disconnected, and coil is to lithium battery at this time
Charging；Have load and former side energy is sufficient: K2 is closed, and K1, K3 are disconnected, at this time the direct powering load of coil；There are load and original
Side energy is insufficient: K3 is closed, and K1, K2 are disconnected, and lithium battery is load supplying by boost module at this time.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of compound energy wireless charging device, which is characterized in that including sequentially connected energy acquisition module, energy process
Module, DC/DC control module, wireless transmission and receiving module and electric energy management module；
The energy acquisition module includes light energy collecting part, wind collecting part, kinetic energy collecting part, respectively to absorb too
Positive energy, wind energy and body kinetic energy simultaneously convert electric energy for above-mentioned various energy, are handled by energy process module, through described
After the convergence boosting of DC/DC control module, wirelessly adjusted in electric energy management module using wireless transmission and receiving module
Lower supply target device uses or storage.
2. compound energy wireless charging device according to claim 1, which is characterized in that the light energy collecting part includes
Muti-piece in parallel or series, solar film battery array to convert received solar energy to electric energy；The wind energy is adopted
Collection part includes several DC micro-motors to collect wind energy；The kinetic energy collecting part includes producing when collecting human motion
The decelerating motor of raw kinetic energy.
3. compound energy wireless charging device according to claim 1, which is characterized in that the energy process module includes
The monitoring running state and back-flowing proof circuit of filter circuit, Dolby circuit and branch of powering；The operating status of the power supply branch
Monitoring and back-flowing proof circuit are divided by comparing diode both ends on charging circuit and the size of reference voltage judges that the branch is
No normal operation, exports high level when partial pressure is greater than reference voltage when diode both ends, and when diode both ends, partial pressure is less than reference
Low level is exported when voltage, detection signal sends controller to and carries out circuit control.
4. compound energy wireless charging device according to claim 1, which is characterized in that the electric energy management module includes
Controller, voltage detecting circuit, current detection circuit, control switch circuit, lithium battery and load；
The end voltage of the voltage detecting circuit acquisition wireless receiving module, the end voltage are transferred to control after carrying out A/D conversion
Device processed, the controller judge whether former side energy collected is sufficient by the end voltage of coil；
The end electric current of the current detection circuit acquisition loading interfaces, the end electric current are transferred to controller after carrying out A/D conversion,
Whether the controller has whether electric current has accessed load come decision circuitry by loading interfaces；
The controller realizes lithium by control switch circuit according to the management and load supplying strategy of default lithium battery impulse electricity
The management of battery charging and discharging and load power consumption control.
5. compound energy wireless charging device according to claim 4, which is characterized in that the pipe of the charging and discharging lithium battery
It manages with load supplying strategy and includes:
When non-loaded, charged by wireless receiving loft circle to lithium battery；
When having load and former side energy abundance, pass through wireless receiving loft circle powering load；
When having load and inadequate former side energy, pass through lithium battery powering load.
6. compound energy wireless charging device according to claim 1, which is characterized in that the DC/DC control module root
The power delivery capabilities of wireless transmission and receiving module, the luminous energy maximum work are maximized according to luminous energy MPPT maximum power point tracking strategy
Rate point tracking strategy includes:
Step 1: apparatus for initializing parameter and the output voltage U for controlling solar film batteryAEqual to solar film battery maximum
The corresponding output voltage V of power points0；
Step 2: the virtual voltage V at the solar film battery both ends that storage is acquired by voltage collection circuitAAnd by current detecting
The actual output current I of the solar film battery of circuit acquisitionA, calculate and store the output work of solar film battery at this time
Rate PA
Step 3: adjustment solar film battery output voltage VBEqual to VA+ Δ V ', Δ V ' are voltage disturbance step-length, and storage is at this time
By the actual output current I of the solar film battery of current detection circuit acquisitionB, calculate and store solar energy film electricity at this time
The output power P in pondB；
Step 4: solar film battery output voltage V when adjustmentCEqual to VAΔ V ', storage are acquired by current detection circuit at this time
Solar film battery actual output current IC, calculate and store the output power P of solar film battery at this timeC；
Step 5: comparing PAAnd PBIf PAMore than or equal to PB, step 6 is executed, it is no to then follow the steps 7；
Step 6: comparing PAAnd PCIf PAMore than or equal to PC, control direct voltage output VA, Δ V '=Δ V/2, wherein Δ V is single
Position voltage disturbance step-length, otherwise controls direct voltage output VC, Δ V '=Δ V, return step 3；
Step 7: comparing PAAnd PCIf PAMore than or equal to PC, control direct voltage output VB, otherwise Δ V '=Δ V controls direct current
Pressure output VA, Δ V '=Δ V, return step 3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109802498A (en) * | 2019-02-22 | 2019-05-24 | 上海鹄恩信息科技有限公司 | A kind of power supply system based on radio frequency electromagnetic collection of energy, method and device |
| WO2024000870A1 (en) * | 2022-06-29 | 2024-01-04 | 箭牌家居集团股份有限公司 | Ultramicro energy conversion circuit and energy storage device |
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