CN108312880A - A kind of remote controlled intelligent charging spot - Google Patents
A kind of remote controlled intelligent charging spot Download PDFInfo
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- CN108312880A CN108312880A CN201810152952.3A CN201810152952A CN108312880A CN 108312880 A CN108312880 A CN 108312880A CN 201810152952 A CN201810152952 A CN 201810152952A CN 108312880 A CN108312880 A CN 108312880A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/14—Plug-in electric vehicles
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to charging equipment technical fields, disclose a kind of remote controlled intelligent charging spot, and the charge coil in inductive disks installed in charging transformer and the roadbed near cabinet is connect by cable；Inductive disks, charge coil are both provided with multiple, and multiple charge coil parallel runnings；Charge coil is sequentially connected AC/DC voltage regulation units, high frequency power amplifying unit and energy emitting element by conducting wire；The AC/DC voltage regulation units use circuit of reversed excitation；The high frequency power amplifying unit uses high-frequency power amplifying circuit, and the DC power conversion of input at the sinusoidal ac of MHz, the driving source etc. of magnetic resonance unit is inputted as energy emitting element.The present invention by several inductive disks are set in roadbed, it can be achieved that automobile wireless charging, avoid the problem of more automobiles are lined up charging for a long time.
Description
Technical field
The invention belongs to charging equipment technical field more particularly to a kind of remote controlled intelligent charging spots.
Background technology
Currently, the prior art commonly used in the trade is such：
The function of charging pile is similar to the fuel charger inside gas station, can be fixed on ground or wall, be installed on public
It builds in (public building, market, Public Parking etc.) and residential area parking lot or charging station, it can be according to different voltage
Grade is that the electric vehicle of various models charges.The input terminal of charging pile is directly connected to AC network, and output end, which is equipped with, to be filled
Plug is used to charge for electric vehicle.Charging pile generally provides two kinds of charging modes of normal charge and quick charge, Ren Menke
It is used with using specific recharged card to swipe the card on the man-machine interactive interface that charging pile provides, carries out corresponding charging side
Operations, the charging pile display screens such as formula, charging time, cost data printing can show the data such as charge volume, expense, charging time.
However, after existing charging pile failure, user cannot notify maintenance personal to tie up in time in no communication apparatus
It repaiies；Summer hot weather simultaneously, in charging process, charging pile cannot provide cooling function to user；Existing charging pile
Because of price difference, causes payment function inconsistent, to meet user demand, need to update, need to put into prodigious cost；
Charging is direct insertion using power cord, can not achieve the wireless charging in safe range, causes charging to be lined up, what is wasted time asks
Topic.
Had using the sensor (abbreviation wireless sensor) of wireless way for transmitting data excellent without wiring, convenient, flexible etc.
Point, it has also become the important on-line monitoring mode of high voltage electric equipment.Wireless sensor needs working power, but since high-voltage electrical apparatus is set
Standby voltage height and electric insulation safety requirements, wireless sensor are not only difficult to directly take electricity from high voltage electric equipment, and very
Difficulty is directly powered by low-pressure side alternating current, therefore the working power key technology that its is further applied and develop as restriction.
It studies at present and what is used mainly has to on-line monitoring of high-voltage electric equipment sensor power supply mode：Lithium battery, light
Volt battery, laser, piezoelectricity or thermoelectric energy are collected, electric field energy is collected, Current Transmit takes electricity etc..Lithium battery is most simple
Power supply mode, but limited battery capacity, high temperature resistant are poor, when longtime running, which needs frequently to have a power failure, replaces battery.Photovoltaic cell needs
Outdoor use, and depend on illumination.Laser powered sensor is stablized, and not by electromagnetic interference, but photoelectric conversion efficiency is low, the of high cost, service life
It is short.Piezoelectricity or thermoelectric energy collection mode collect energy using piezoelectricity or pyroelectric effect, collect finite energy, and by busbar electricity
There is the problems such as power supply dead zone in the influences such as stream.The electric energy that electric field energy collection mode is collected depends on voltage class and electrode plate
Area, it is very limited to collect energy, there are difficult design, the problems such as stray capacitance is to taking electrical property to be affected.CT takes the electricity to be
Coil with magnetic core is set on high voltage bus, the alternating magnetic field generated using bus current takes electricity, using than wide, but
In the presence of taking electric deficiency, the reasons such as busbar short-circuit to cause easily to interfere sensor when overcurrent when bus current is small, even
The shortcomings of damage；In addition, for the prodigious existing high voltage electric equipment of storage, especially for compact-sized switchgear etc.,
Electric insulation will be destroyed since directly CT is sleeved on high voltage bus row, needs the critical component that high voltage electric equipment is transformed, no
With economic feasibility.When transmitting non-contact electric energy technical transmission electric energy, do not connect electrically between electric energy transmitting and receiving unit
It connects, wherein magnetic resonance transmitting non-contact electric energy technology can transmit electric energy in more remote more efficient, therefore wireless using magnetic resonance
Power supply technique can preferably solve the problems, such as the working power of high-pressure side wireless sensor.
RF power amplification is the important equipment in wireless communication system, ensures that the higher line degree of RF power amplification is predistortion
Important foundation.It is non-linear to be continuously increased in RF power amplification During Process of Long-term Operation so that the delivery efficiency of power amplifier reduces, and causes
Amplitude and phase distortion, cause bit error rate to increase；Cause spurious spectrum to increase and generates a large amount of harmonic components and intermodulation distortion, from
And communication transmission quality is seriously affected, reduce system performance；Simultaneously because non-linear make power amplifier fever increase, device will be caused to add
Fast aging, it is therefore necessary to carry out power back-off.Conventional power compensating method power efficiency is beneath or complicated, cost compared with
High or Bandwidth-Constrained, stability are poor.Envelope-tracking adaptive digital pre-distortion can overcome disadvantages mentioned above.Currently, predistortion
Device can be divided into three classes according to its position in systems：1, radio frequency (RF-Radio Frequency) pre-distortion technology；2, in
Frequently (IF-Intermediate Frequency) pre-distortion technology；3, base band predistortion technology.
Radio frequency distortion (RF-Radio Frequency) and intermediate frequency predistortion (IF-Intermediate Frequency)
Belong to the scope of analog predistortion, higher efficiency and cheap cost are its advantages, disadvantage is that constantly update simulation
Parameter needs active device to control analog device in radio frequency or intermediate frequency to adapt to the characteristic of power amplifier, implement it is relatively difficult,
It is only applicable to the occasions not high to linearity such as satellite system, the raising of feedforward linearized initial linear at present；Base band is pre-
Distortion can be handled at low frequency, can use DSP (Digital Signal Processor), FPGA (Field
Programmable Gate Array) etc. the realization of high-speed digital signals processing chip the low frequency of signal is moved, have flexible
Processing method and stronger adaptability.Open source information shows：Envelope-tracking needs dynamic to adjust power supply the more demanding of power supply
Voltage rather than use fixed voltage power.
Dual polarized antenna can emit or receive the electromagnetic wave of two cross polarizations, therefore in identical frequency band, and antenna can be with
Emit or receive two paths of signals simultaneously.Therefore, the effect of two width antennas may be implemented in common antenna, can reduce antenna cost and peace
Fill space；Meanwhile dual-mode antenna can reduce the mutual coupling between dual-mode antenna using cross polarization, improve communication quality；It receives
Hair antenna can increase message capacity when working at the same time with expanding communication link.
Common dual polarized antenna form has orthogonal dipole antenna and double polarized micro strip antenna.Orthogonal half-wave shakes
Son is orthogonally located using two dipole antennas, gives two antennas to feed respectively at center, which is bidirectional radiation, gain
It is relatively low, to obtain one-way radiation, reflecting plate need to be placed in the position of the antenna side λ of 0.25 λ~0.5, the reflecting plate length of side is more than half
Wave oscillator length, therefore orthogonal dipole antenna size is typically larger than the λ × 0.25 of 0.5 λ × 0.5 λ.It is communicated in mobile vehicle
In, usually require that antenna has small size, it is especially desirable to which antenna has low section characteristic, this is answered high-speed mobile carrier
It is especially apparent in.Double polarized micro strip antenna has the characteristics that microstrip antenna low section, but microstrip antenna lateral dimension is big, needs
Miniaturization technology is taken to reduce the lateral dimension of antenna, common method includes that high dielectric constant is slotted and used to radiation fin
Deng, but the problems such as frequency band can be brought to narrow simultaneously.
In conclusion problem of the existing technology is：
After existing charging pile failure, user cannot notify maintenance personal to carry out in time in no communication apparatus
Repair；Summer hot weather simultaneously, in charging process, charging pile cannot provide cooling function, existing charging to user
Stake to meet user demand, needs to update, needs to put into prodigious cost because of price difference；
Charging is direct insertion using power cord, can not achieve the wireless charging in safe range, causes charging to be lined up, when delaying
Between the problem of.
Since system can exist in practical applications, coil resonance frequency may drift about, there is metal object on periphery, installation site
The input power of increase energy transmitter unit is usually wanted in the influence for having deviation etc., and to ensure to export energy voltage stabilizing, but this mode is not
The stability of system operation can be influenced conducive to energy saving and larger power attenuation, while also bad to the adaptability of field application.
It is therefore desirable to feedback control is added so that the transmission of energy has controllability, ensures complicated field application oneself
Adaptability, while the waste of energy will not be caused again.
Existing power amplifier cannot carry out low different system switching, sensitivity, reconfigurability, bad adaptability.
In the communications, the broad beam characteristic of antenna can provide better communication stability for system, eliminate communication blind district,
Therefore broad beam microstrip antenna is always the problem of urgent need to resolve.Double polarized micro strip antenna is while minification, surface wave
Radiation proportion can increase, the beam angle of antenna can be increased, and can reach 95 °, but still cannot be satisfied currently to width
The requirement of wave beam performance.Therefore, under conditions of meeting certain bandwidth of operation, small size, the width of double polarized micro strip antenna are realized
Wave beam is all the main bugbear for needing to solve.
Solve the difficulty and meaning of above-mentioned technical problem：
Solve the difficulty of above-mentioned technical problem：It is direct insertion only with power cord cannot to solve charging, can not achieve safe model
Interior wireless charging is enclosed, causes charging to be lined up, wastes time.
Solve the difficulty and meaning of above-mentioned technical problem：
The present invention by several inductive disks are set in roadbed, it can be achieved that automobile wireless charging, it is long to avoid more automobiles
Time is lined up the problem of charging.
The present invention solves the powerup issue of high-pressure side wireless sensor, and can effectively increase system to the adaptive of environment
Ying Xing makes permanent, stable, the reliable operation of system.
Invention content
In view of the problems of the existing technology, the present invention provides a kind of remote controlled intelligent charging spots.
The invention is realized in this way a kind of remote controlled intelligent charging spot, the remote controlled intelligence is filled
Electric stake includes：
Cabinet, electric fan, Air Filter, special line maintenance telephone, cushion and charging head, charging transformer, charge coil, oscillation
Element, inductive disks, touch control screen；
The cabinet center is embedded with electric fan, and touch control screen is embedded on the upside of the electric fan；It is logical below the cabinet
It crosses bolt and is fixed with special line maintenance telephone；It is provided with charging head on the right side of the cabinet；
The interior of equipment cabinet installs charging transformer；
The charging transformer is electrically connected by oscillating element with the charge coil being preset in roadbed induced inside disk.
It is covered with Air Filter on the electric fan.
The special line maintenance telephone is set with cushion.
The charging head is electrically connected with charging transformer.
Equipment has several inductive disks in roadbed near the cabinet, the charge coil parallel running in several inductive disks.
Control mainboard is installed inside the touch control screen；It is connect with Third-party payment server, is used for mobile phone barcode scanning branch
The payment device paid；It is connect with Unionpay server, the card-inserted device for plug-in card payment.
Further, the charging transformer passes through electricity with the charge coil in the inductive disks of installation in the roadbed near cabinet
Cable connects；The inductive disks, charge coil are both provided with multiple, and multiple charge coil parallel runnings；
The charge coil is sequentially connected AC/DC voltage regulation units, high frequency power amplifying unit and energy transmitting by conducting wire
Unit；The AC/DC voltage regulation units use circuit of reversed excitation；The high frequency power amplifying unit uses high-frequency power amplifying circuit,
The DC power conversion of input at the sinusoidal ac of MHz, the driving source of magnetic resonance unit is inputted as energy emitting element；
The vehicle-mounted coil is sequentially connected energy acceptance unit and rectification stable pressuring unit by conducting wire；The rectifying and voltage-stabilizing list
Member uses full-bridge rectification Buck regulator circuits；The energy emitting element, energy acceptance unit constitute magnetic resonance unit；The energy
Receiving unit is measured, the MHz high-frequency electrical energys of energy emitting element transmitting are received by magnetic resonance；Energy transmitting is received by magnetic resonance
The MHz high-frequency electrical energys of unit transmitting；
The rectification stable pressuring unit includes the single-phase bridge rectification element and chip TMS 320 F 2812 being made of diode, institute
The single-phase bridge rectification element and chip TMS 320 F 2812 for stating diode composition constitute full-bridge rectification Buck regulator circuits；Energy
It is in automobile is battery powered that receiving unit, which receives after energy is rectified and full-bridge rectification Buck regulator circuits,；
The charge coil is wirelessly connected with charging control unit input terminal；The vehicle-mounted coil and feedback control unit are defeated
Outlet is wirelessly connected；The charging control unit is integrated in feedback control unit on remote control information processing terminal；
Wireless communication is communicated using ZigBee units；
The feedback control unit includes energy acceptance element circuit information acquisition module, the control of energy acceptance unit energy
Module, energy emitting element circuit information acquisition module, energy emitting element energy control module；The energy acceptance unit electricity
Road information acquisition module passes through wireless connection with energy acceptance unit energy control module；The energy emitting element circuit information
Acquisition module passes through wireless connection with energy emitting element energy control module；The energy acceptance unit energy control module with
Energy emitting element energy control module is wirelessly connected；
The high frequency power amplifying unit is provided with shell, and the enclosure is provided with；
Field programmable gate array module is generated for completing digital pre-distortion and envelope；
Envelop modulator is connect with field programmable gate array by cable, passes through RF cable and envelope-tracking power
Amplifier connects, the peak-to-average force ratio for inhibiting envelope tracking power amplifier to generate；
Envelope tracking power amplifier is connect by cable with envelop modulator, for improving drain voltage from low input
Efficiency of the power to the saturation state of peak power；
Frequency overlapped-resistable filter is connect by RF cable scene with programmable gate array and envelope tracking power amplifier,
For reducing the aliasing components in output level；
Adaptation module is connect by RF cable with circulator, the compensation for digital pre-distortion to be adaptively adjusted
Characteristic；
The energy acceptance unit is integrated with broad beam double polarized micro strip antenna, and is adopted with energy acceptance element circuit information
Collect module connection；Broad beam double polarized micro strip antenna includes the feeding network substrate being embedded in a supporting frame and is connected to
The radiation substrate of feeding network substrate top, the radiation substrate are equipped with and are made of at least three discrete miniature radiation fins
Micro-strip radiation fin is then equipped with the feed line of at least two interconnections on the feeding network substrate；Each miniature radiation fin and
At least one feed probes are all connected between feed line, the top of wherein feed probes is connected to miniature radiation fin, and end is then
It is connected to feed line；The bottom of the feeding network substrate is attached to metal base plate, each miniature radiation fin and metal base plate it
Between be respectively connected at least one short-circuit column, the top of short-circuit column is connected to miniature radiation fin, end pass through feeding network substrate with
Metal base plate connects；Metal base plate bottom surface side is additionally provided at least two radio-frequency joints, and top passes through feeding network base
Plate is connect with feed line.
Further, all miniature radiation fin arrangements are rounded；
The supporting frame is metal material or dielectric material, and is furnished with flange hole on supporting frame, is used for antenna
Installation；
The radiation substrate and feeding network substrate are printed circuit board；
One jiao of each miniature radiation fin is equipped with corner apertures, and each corner apertures corresponds to the end of a feed line, accordingly
The tops of feed probes be plugged in corner apertures, and end is then plugged on feed thread end corresponding with the corner apertures position；
The crossover sites of the feed line are attached by the bridge element of foil structures；
Miniature radiation fin is equipped with through-hole, and the top of corresponding short circuit column is plugged in through-hole；
It is additionally provided with metal material or the support column of dielectric material, the top and end of the support column respectively connect
In radiation substrate and feeding network substrate；
Position corresponding with the radio-frequency joint is equipped with current feed department, the top of the radio-frequency joint on the feed line
Specifically it is connect with the current feed department；
The radio-frequency joint includes inner core and is wrapped in the crust of inner core, and the top of the inner core is connected to feed line
Current feed department, and the top of crust is then welded in metal base plate bottom surface side.
Further, high frequency power amplifying unit further comprises power interface, circulator；
On the shell, the circulator connects with envelope tracking power amplifier and adaptation module for the power interface installation
It connects；
The envelope is generated to be integrated by envelope and be constituted with envelope mapping；Envelope is integrated for eliminating high fdrequency component；Envelope reflects
Penetrate the measurement for mapping envelope to the instantaneous envelope of drain voltage；
The power tube of the envelope tracking power amplifier is LDMOS, and running environment is parallel multiband pattern；
Control centre is made of field programmable gate array, realizes that digital pre-distortion, digital pre-distortion are multiband numbers
Pre-distortion unit, digital predistortion unit is captured in each wave band and digitized processing will alleviate the parallel multiband fortune of power amplifier respectively
Regeneration distortion spectrum under row pattern and intermodulation distortion.
Advantages of the present invention and good effect are：
The remote controlled intelligent charging spot is provided with special line maintenance telephone, can be convenient for users to contacting repair as early as possible
Staff repairs；The electric fan of setting can cool down to user simultaneously, highly practical；By being arranged in roadbed
Several inductive disks, it can be achieved that automobile wireless charging, avoid the problem of more automobiles are lined up charging for a long time.
The present invention solves the powerup issue of remote controlled intelligent charging spot, and can effectively increase system to environment
Adaptivity, make that system is permanent, stablizes, reliable operation.
In the feedback control,
When Buck circuit input voltages, which are less than it, exports voltage stabilizing value, output is unable to voltage stabilizing；
When Buck circuit input voltages, which are more than it, exports voltage stabilizing value, input power is constant, exports voltage stabilizing；
When Buck regulator circuit load resistances are constant, output voltage with high-frequency power amplifying circuit input power change
Change and enables Buck circuit output voltage stabilizings there are a critical inputs performance number；When input power is less than critical inputs performance number
When, output is unable to voltage stabilizing；When input power is higher than critical inputs performance number, voltage stabilizing is exported.
The present invention, which can either give, is mounted on the working power that high-voltage charging pile high-pressure side provides abundance steady in a long-term, Er Qieman
Sufficient charging pile high-voltage isulation requirement.Present invention employs adaptive feedback control, can adaptive complex environment very well, it is especially suitable
For the high voltage electric equipment of electromagnetic environment, temperature environment complexity, energy transmitting and receiving unit pair are required when reducing installation
Quasi- required precision to be easily installed, and effectively increases electric energy efficiency of transmission, in model machine of the invention, in transmission distance
From for 5m when, efficiency about improves 30% compared with opened loop control, transmission range be 10cm when, about improve 8%.
Feedback control unit, effectively reduces system cost, and cost can reduce about 10-20%.
Power amplifier provided by the invention can dynamically adjust the supply voltage of envelope tracking power amplifier power amplifier,
In this way by keeping power amplifier power amplifier to be compressed in the modulation period of entire envelope to improve envelope-tracking to the maximum extent
The efficiency of power amplifier, and be more than and power amplifier is allowed to be maintained on peak envelope；The control centre is by FPGA (Field
Programmable Gate Array) it constitutes, realize digital pre-distortion DPD (Digital Pre-Distortion), DPD
(Digital Pre-Distortion) is substantially multiband DPD (Digital Pre-Distortion) unit, DPD
(Digital Pre-Distortion) unit is captured in each wave band and digitized processing will alleviate power amplifier more waves parallel respectively
Regeneration distortion spectrum under section operational mode and intermodulation distortion, reduce DAC (the Digital to Analog to bandwidth
Converter) the rigors of device and ADC (Analog to Digital Converter) device；The control centre is real
Existing envelope is generated to be integrated by envelope and be constituted with envelope mapping, and the instantaneous sampling point of original signal is integrated by envelope and envelope reflects
Inject row envelope tracking power amplifier ETPA (Envelope tracking Power Amplifier) drain voltage appropriate
Operation；Envelop modulator can optimize the efficiency of power amplifier, avoid generating larger peak-to-average force ratio；Adaptation module can improve predistortion
System tracking, the ability for offsetting the error that envelope tracking power amplifier is generated by external factor, raising envelope-tracking power are put
The linearity and efficiency of big device, and then improve the performance and communication quality of whole system；Frequency overlapped-resistable filter is for exporting DPD
The aliasing components of signal are reduced to inappreciable degree, remove interference of the collected neutral signal to useful signal, most
Suppress or eliminate the influence that aliasing acquires data to big degree.
Compared with prior art, the present invention having the following advantages：
Power consumption of the present invention is extremely low, ensures that its linearisation carries out power benefit using DPD (Digital Pre-Distortion)
It repays, greatly reduces the workload of maintenance.
The present invention can be effectively reduced radiation, meet relevant environmental protection standard.
The frequency overlapped-resistable filter that the present invention is arranged improves ETPA (Envelope tracking Power
Amplifier efficiency) avoids larger peak-to-average force ratio.
The power amplifier link that the present invention is arranged, input signal is amplified, and to reach the demand of output power, is used
LDMOS (Laterally Diffused Metal Oxide Semiconductor) is managed, to improve drain voltage from low input
To the operational efficiency of peak value saturation state.
The micro-strip radiation fin of the present invention is distinguished using 3 discrete miniature radiation fin compositions using feeding network
Feed.A pair of of radiation fin of radiation substrate diagonal constitutes a linear polarization working condition, and another pair radiation fin is constituted just
The linear polarization working condition of friendship.Each miniature radiation fin is omnidirectional radiation work, when a pair of of radiation fin is by constant amplitude reverse phase
When current excitation, in the directional diagram that the surface of antenna can obtain having broad beam characteristic.Due to 3 miniature radiation chip sizes
It is small, compact-sized, it can be achieved that antenna shapes size is significantly less than conventional microstrip antenna, and the beam angle of antenna obtains significantly
Increase, 110 ° can be reached；
3 miniature radiation fins need to feed respectively by feeding network, and a pair of miniature radiation fin needs equal using amplitude
The excitation of opposite in phase.Conventional feeding network is frequently with T shapes knot or power divider structure, but these structures are more complicated, in this hair
It is difficult to realize in bright such small space, therefore proposes the linear feed network structures of dual crossing：A pair of of radiation fin passes through one
Root meander feed line is connected directly, and suitable position is fed on line, and another pair radiation fin connects also by similar folding line
It connects and feeds, the part of two feed lines intersection is isolated using bridge element.The feed network structures that the present invention designs are simple,
Superior performance can provide good feed for 3 miniature radiation fins, while the dual polarization state of antenna also achieves good isolation
Degree；
The present invention additionally uses supporting frame structure, this is no in conventional microstrip antenna, and supporting frame is to antenna
Influence of the installation environment to miniature antenna performance can be reduced when supporting frame is metal material by playing the role of support and shielding,
It is furnished with flange hole on supporting frame, is mounted directly convenient for antenna.
The thickness of inventive antenna can be realized less than 0.05 λ, and lateral dimension then can be achieved to be less than 0.15 λ, while antenna
Also have the characteristics that broad beam and high-isolation.
Description of the drawings
Fig. 1 is remote controlled intelligent charging spot structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram that remote controlled intelligent charging spot inductive disks provided in an embodiment of the present invention are overlooked；
Fig. 3 is that remote controlled intelligent charging spot touch control screen internal control mainboard provided in an embodiment of the present invention connects
Connect schematic diagram.
Fig. 4 is that remote controlled intelligent charging spot provided in an embodiment of the present invention and the structure of roadbed inductive disks wiring are shown
It is intended to；
In figure：1, cabinet；2, electric fan；2-1, Air Filter；3, special line maintenance telephone；3-1, cushion；4, charging head；5, feel
It should coil；6, oscillating element；7, charge coil；8, roadbed；9, automobile；9-1, vehicle-mounted coil；9-2, battery；9-3, driving motor；
9-4, postposition wheel；10, touch control screen；10-1, control mainboard；11, Unionpay's server；12, card-inserted device；13, third party's branch
Pay server；14, payment device；15, earth polar；16, charging transformer.
Fig. 5 is high frequency power amplifying unit schematic diagram provided in an embodiment of the present invention.
Fig. 6 is broad beam double polarized micro strip antenna schematic diagram provided in an embodiment of the present invention.
Fig. 7 is support column connection diagram provided in an embodiment of the present invention.
Fig. 8 is two radio-frequency joints connection diagram provided in an embodiment of the present invention.
In figure：17, radiation substrate；17-1, miniature radiation fin；17-2 weld tabs；17-3, through-hole；18, supporting frame；19, it presents
Electric network substrate；19-1, feed line；The current feed department of 19-2, feed line；19-3, metal base plate；20, bridge element；21, feed is visited
Needle；22, short-circuit column；23, support column；24, two radio-frequency joint.
Fig. 9 is that transmitting terminal energy hole provided in an embodiment of the present invention realizes circuit diagram.
When Figure 10 is the power supply MR-CPS open loops of magnetic resonance non-contact power and closed-loop control provided in an embodiment of the present invention not
With efficiency comparative's figure under transmission range.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing
Detailed description are as follows.
After existing charging pile failure, user cannot notify maintenance personal to carry out in time in no communication apparatus
Repair；Summer hot weather simultaneously, in charging process, charging pile cannot provide cooling function, existing charging to user
Stake to meet user demand, needs to update, needs to put into prodigious cost because of price difference；Charging is straight using power cord
The formula of inserting, can not achieve the wireless charging in safe range, cause charging to be lined up, the problem of wasting time.
As shown in Figures 1 to 4, which includes：Cabinet 1, electric fan 2, Air Filter 2-1,
Special line maintenance telephone 3, cushion 3-1 and charging head 4, charge coil 7, oscillating element 6, inductive disks 5, touch charging transformer 16
Control flow 10；
1 center of the cabinet is embedded with electric fan 2, and 2 upside of the electric fan is embedded in touch control screen 10；The cabinet 1
Lower section has been bolted special line maintenance telephone 3；1 right side of the cabinet is provided with charging head 4；
1 inside of the cabinet is installed by charging transformer 16；
The charging transformer 16 passes through 7 electricity of oscillating element 6 and the charge coil being preset in 8 induced inside disk 5 of roadbed
Connection.
As the outstanding embodiment of the present invention, Air Filter 2-1 is covered on the electric fan 2.
As the outstanding embodiment of the present invention, the special line maintenance telephone 3 is set with cushion 3-1.
As the outstanding embodiment of the present invention, the charging head 4 is electrically connected with charging transformer 16.
As the outstanding embodiment of the present invention, equipment has several inductive disks 5, several senses in the roadbed 8 near the cabinet 1
7 parallel running of charge coil in 5 should be coiled.
As the outstanding embodiment of the present invention, 10 inside installation control mainboard 10-1 of the touch control screen；With third party
Payment server 13 connects, the payment device 14 for the payment of mobile phone barcode scanning；It is connect with Unionpay server 11, for plug-in card payment
Card-inserted device 12.
For the present invention after charging pile failure, user can directly pass through special line maintenance telephone 3；Maintenance work is contacted as early as possible
Personnel repair；Cushion 3-1 on special line maintenance telephone 3 can increase degree of being held by hand comfortably；Summer hot weather simultaneously, can be with
The cooling of 2 row of electric fan is opened, the Air Filter 2-1 covered on electric fan 2 can be dust-proof；It is highly practical.
When volume automobile 9 needs charging, automobile 9 can be opened on the upside of the inductive disks 5 in roadbed 8, filling in inductive disks 5
The electric coil 7 and vehicle-mounted coil 9-1 in automobile 9 realizes that energy conversion, vehicle-mounted coil 9-1 are battery 9- according to electromagnetic induction principle
2 chargings, battery 9-2 be driving motor 9-3 power supply make running car, it can be achieved that automobile wireless charging, avoid more automobiles
The problem of being lined up charging for a long time.
10 inside installation control mainboard 10-1 of touch control screen；It connect with Third-party payment server 13, is swept for mobile phone
The payment device 14 of code payment；Connect with Unionpay server 11, for plug-in card payment card-inserted device 12, it can be achieved that various mode branch
It pays, facilitates car owner.
The charge coil in inductive disks installed in the charging transformer and the roadbed near cabinet is connected by cable
It connects；The inductive disks, charge coil are both provided with multiple, and multiple charge coil parallel runnings；
The charge coil is sequentially connected AC/DC voltage regulation units, high frequency power amplifying unit and energy transmitting by conducting wire
Unit；The AC/DC voltage regulation units use circuit of reversed excitation；The high frequency power amplifying unit uses high-frequency power amplifying circuit,
The DC power conversion of input at the sinusoidal ac of MHz, the driving source of magnetic resonance unit is inputted as energy emitting element；
With reference to concrete analysis, the invention will be further described.
The vehicle-mounted coil is sequentially connected energy acceptance unit and rectification stable pressuring unit by conducting wire；The rectifying and voltage-stabilizing list
Member uses full-bridge rectification Buck regulator circuits；The energy emitting element, energy acceptance unit constitute magnetic resonance unit；The energy
Receiving unit is measured, the MHz high-frequency electrical energys of energy emitting element transmitting are received by magnetic resonance；Energy transmitting is received by magnetic resonance
The MHz high-frequency electrical energys of unit transmitting；
The rectification stable pressuring unit includes the single-phase bridge rectification element and chip TMS 320 F 2812 being made of diode, institute
The single-phase bridge rectification element and chip TMS 320 F 2812 for stating diode composition constitute full-bridge rectification Buck regulator circuits；Energy
It is in automobile is battery powered that receiving unit, which receives after energy is rectified and full-bridge rectification Buck regulator circuits,；
The charge coil is wirelessly connected with charging control unit input terminal；The vehicle-mounted coil and feedback control unit are defeated
Outlet is wirelessly connected；The charging control unit is integrated in feedback control unit on remote control information processing terminal；
Wireless communication is communicated using ZigBee units；
The feedback control unit includes energy acceptance element circuit information acquisition module, the control of energy acceptance unit energy
Module, energy emitting element circuit information acquisition module, energy emitting element energy control module；The energy acceptance unit electricity
Road information acquisition module passes through wireless connection with energy acceptance unit energy control module；The energy emitting element circuit information
Acquisition module passes through wireless connection with energy emitting element energy control module；The energy acceptance unit energy control module with
Energy emitting element energy control module is wirelessly connected；
As shown in figure 5, the high frequency power amplifying unit is provided with shell, the enclosure is provided with；
Field programmable gate array module is generated for completing digital pre-distortion and envelope；
Envelop modulator is connect with field programmable gate array by cable, passes through RF cable and envelope-tracking power
Amplifier connects, the peak-to-average force ratio for inhibiting envelope tracking power amplifier to generate；
Envelope tracking power amplifier is connect by cable with envelop modulator, for improving drain voltage from low input
Efficiency of the power to the saturation state of peak power；
Frequency overlapped-resistable filter is connect by RF cable scene with programmable gate array and envelope tracking power amplifier,
For reducing the aliasing components in output level；
Adaptation module is connect by RF cable with circulator, the compensation for digital pre-distortion to be adaptively adjusted
Characteristic；
As Figure 6-Figure 8, energy acceptance unit provided in an embodiment of the present invention is integrated with broad beam dual-polarized, microstrip day
Line, and connect with energy acceptance element circuit information acquisition module；Broad beam double polarized micro strip antenna includes being embedded in a support
Feeding network substrate in frame 18 and the radiation substrate 17 for being connected to 19 top of feeding network substrate, on the radiation substrate
Equipped with the micro-strip radiation fin being made of four discrete miniature radiation fin 17-1,
Has several weld tabs 17-2 on radiation substrate 17；It is then equipped at least two on the feeding network substrate and intersects company
The feed line connect；At least one feed probes, the wherein top of feed probes are each all connected between miniature radiation fin and feed line
End is connected to miniature radiation fin, and end is then connected to feed line 19-1；The bottom of the feeding network substrate is attached to metal
Bottom plate, each to be respectively connected at least one short-circuit column between miniature radiation fin and metal base plate, the top of short-circuit column is connected to micro-
Type radiation fin, end are connect across feeding network substrate with metal base plate；Metal base plate bottom surface side is additionally provided at least two
A radio-frequency joint, top are connect across feeding network substrate with feed line.
All miniature radiation fin arrangements are rounded；
The supporting frame 18 is metal material or dielectric material, and is furnished with flange hole on supporting frame, is used for day
Line is installed；
The radiation substrate and feeding network substrate are printed circuit board；
One jiao of each miniature radiation fin is equipped with corner apertures, and each corner apertures corresponds to the end of a feed line, accordingly
The tops of feed probes be plugged in corner apertures, and end is then plugged on feed thread end corresponding with the corner apertures position；
The crossover sites of the feed line are attached by the bridge element of foil structures；
Miniature radiation fin is equipped with through-hole 17-3, and the top of corresponding short circuit column is plugged in through-hole；
It is additionally provided with metal material or the support column of dielectric material, the top and end of the support column respectively connect
In radiation substrate and feeding network substrate；
Position corresponding with the radio-frequency joint is equipped with current feed department, the top of the radio-frequency joint on the feed line
Specifically it is connect with the current feed department；
The radio-frequency joint includes inner core and is wrapped in the crust of inner core, and the top of the inner core is connected to feed line
Current feed department 19-2, and the top of crust is then welded in the bottom surfaces metal base plate 19-3 side.
The position that two feed line 19-1 intersect is attached using the bridge element 20 of foil structures.
The small-sized broad beam double polarized micro strip antenna further includes four feed probes 21, the end grafting of feed probes 21
In the end of a feed line 19-1, specifically can on the end of each feed line apertured so that the ends of feed probes 21 insert
Enter in hole and is welded.And the top of feed probes is then inserted into the corner apertures of a miniature radiation fin 17-1 and is welded.
The small-sized broad beam double polarized micro strip antenna further includes four short-circuit columns 22, and the end of short-circuit column 22 passes through feed
Network substrate 19 and the metal base plate 19-3 for being attached to feeding network base plate bottom are welded, and the radiation fin 17-1 is then inserted on top
Through-hole 17-3 in and weld.
The small-sized broad beam double polarized micro strip antenna further includes the support column 23 using dielectric material, top and
End is connected to center and the center of feeding network substrate 19 of radiation substrate 17.
In addition, the bottom surface side of the metal base plate 19-3 be equipped with two radio-frequency joints 24, radio-frequency joint 24 include inner core and
It is wrapped in the crust of inner core, the top of inner core is connect across feeding network substrate 19 with the current feed department 19-2 on feed line 19-3,
And the top of crust is connect with metal base plate 19-3.
The micro-strip radiation fin of radiation substrate 1 is made of four discrete miniature radiation fins, and four miniature radiation fin arrangements are in
It is rectangular.Each miniature radiation fin is grounded by probe feed and using short-circuit column, and miniature radiation fin each in this way can obtain
The directional diagram of omnidirectional radiation.When the miniature radiation fin of a pair in diagonal positions is fed using the electric current of constant amplitude reverse phase
When, so that it may the directional diagram of broad beam is obtained with the upper half-space in antenna.Simultaneously because the size of four miniature radiation fins is all very
It is small and compact-sized, therefore antenna can realize the characteristic of miniaturization.
Feeding network uses dual crossing feeder structure, and network structure is simple.A piece feed line is visited by two feeds
A pair of miniature radiation fin of needle connection, and suitable feed placement is determined on feed line by optimizing.When radio-frequency joint is sent into height
When frequency electric current, both ends can obtain the electric current of constant amplitude reverse phase on feed line, and be sent into miniature radiation fin by feed probes.Separately
A piece feed line is also identical process, is connected using bridge element in the part of two feed lines intersection.It is designed by this method
Feeding network can improve the isolation of antenna dual polarization state.
As shown in figure 5, high frequency power amplifying unit further comprises power interface, circulator；
On the shell, the circulator connects with envelope tracking power amplifier and adaptation module for the power interface installation
It connects；
The envelope is generated to be integrated by envelope and be constituted with envelope mapping；Envelope is integrated for eliminating high fdrequency component；Envelope reflects
Penetrate the measurement for mapping envelope to the instantaneous envelope of drain voltage；
The power tube of the envelope tracking power amplifier is LDMOS, and running environment is parallel multiband pattern；
Control centre is made of field programmable gate array, realizes that digital pre-distortion, digital pre-distortion are multiband numbers
Pre-distortion unit, digital predistortion unit is captured in each wave band and digitized processing will alleviate the parallel multiband fortune of power amplifier respectively
Regeneration distortion spectrum under row pattern and intermodulation distortion.
The operation principle of feedback control described in detail below：
Ideally voltage stabilizing Buck converter circuits are analyzed it is found that when Buck circuit input voltages are less than its output surely
When pressure value, output is unable to voltage stabilizing, at this point, Buck circuit output voltages and the input phase are same, input resistance is equal to actual loading resistance,
Buck circuits are permanent resistive load；When Buck circuit input voltages, which are more than it, exports voltage stabilizing value, burning voltage V is exportedo_Buck_W,
Input power is constant, and Buck circuits are constant power load Vo_Buck_W 2/RL.The input such as Fig. 3 Buck regulator circuits can be obtained accordingly
Characteristic curve, you can be divided into constant-resistance section and invariable power section.Horizontal axis indicates Buck circuit load resistance R in figureL, longitudinal axis expression input
Power Pin_Buck.It is found that when the Buck circuits as voltage stabilizing work in constant-resistance, i.e. Buck circuits do not operate at voltage stabilizing,
Output voltage Vo_BuckWith the input power P of high-frequency power amplifying circuitin_AmfChange curve as shown in 1 part of line segment of Fig. 4；
When the Buck circuits as voltage stabilizing are operated in voltage stabilizing, output voltage Vo_BuckWith the input power of high-frequency power amplifying circuit
Pin_AmfChange curve as shown in 2 part of line segment of Fig. 4.The power corresponding with 2 turning point of line segment of line segment 1 is Buck circuits
The critical power P of critical output voltage stabilizing point Ain_Amf_L, Pin_Amf_maxThe maximal input allowed for high-frequency power amplifying circuit.
It is found that when input power is less than critical power Pin_Amf_L, Buck circuit outputs are unable to voltage stabilizing；When input power is higher than
Pin_Amf_LWhen, voltage stabilizing is exported, but the magnetic resonance non-contact power power supply MR-CPS efficiency of system is with input power P at this timein_Amf
Increase and reduces.Therefore the preferable working conditions of MR-CPS are in critical voltage stabilizing point.
The seek to stable critical inputs performance number method of pressure of automatic seeking is：
When booting, the input power P of high-frequency power amplifying circuit is first constantly reduced or constantly increased with a fixed step sizein_Amf,
By judge Buck circuit output voltages whether voltage stabilizing, find the corresponding critical inputs voltage of the critical output voltage stabilizing of Buck circuits
Vin_Buck_L, corresponding critical inputs power Pin_Amf_L；Add the input power P of a fixed step size allowance again laterin_AmfSo that Buck
Circuit output voltage stabilizing, and record Buck circuit input voltages V at this timein_Buck_F；
When due to external cause, (transmission range such as between power emission side and receiving side becomes smaller, the resonant frequency of drift
Close to influences such as switching frequencies) so that Buck circuit input voltages Vin_BuckMore than Vin_Buck_FAt one volt, then reduce circuit of reversed excitation
Output voltage adaptively reduces input power Pin_AmfIt re-executes to find the new corresponding input voltage of critical voltage stabilizing
Vin_Buck_LAnd Pin_Amf_L；
When due to external cause, (transmission range such as between power emission side and receiving side becomes larger, the resonant frequency of drift
Far from influences such as switching frequency, surrounding metal objects) so that Vin_BuckLess than Vin_Buck_LWhen, then increase circuit of reversed excitation output voltage,
Adaptively increase input power Pin_AmfIt re-executes to find the corresponding input voltage V of new critical voltage stabilizingin_Buck_LWith
Pin_Amf_L；
Otherwise keep input power constant.
Fig. 9 is that transmitting terminal energy hole realizes circuit：Receiving side (being mounted on electrical equipment high-pressure side) wireless sensor
Zigbee units are sent to transmitting to the output voltage signal for the Buck regulator circuits that microcontroller obtains sampling by radio communication
Side, the microcontroller of emitting side generate the PWM wave of certain duty ratio according to this signal, and d. c. voltage signal is obtained after RC is filtered
Vref_1, the signal for changing circuit of reversed excitation feedback control reference voltage Vref, to change the output voltage of circuit of reversed excitation,
That is the input voltage of high-frequency power amplifying circuit changes energy hair to change the output power of high-frequency power amplifying circuit
Penetrate the input power of unit.
Figure 10 be system the power supply MR-CPS open loops of magnetic resonance non-contact power under difference transmission range when closed-loop control
Efficiency comparative.It is seen that the efficiency of the MR-CPS of closed-loop control being improved than opened loop control, and in transmission distance
From it is closer when, efficiency improves about 30%.
With reference to good effect, the invention will be further described.
The defect of the prior art is：
After existing charging pile failure, user cannot notify maintenance personal to carry out in time in no communication apparatus
Repair；Summer hot weather simultaneously, in charging process, charging pile cannot provide cooling function, existing charging to user
Stake to meet user demand, needs to update, needs to put into prodigious cost because of price difference；
Charging is direct insertion using power cord, can not achieve the wireless charging in safe range, causes charging to be lined up, when delaying
Between the problem of.
Since system can exist in practical applications, coil resonance frequency may drift about, there is metal object on periphery, installation site
The input power of increase energy transmitter unit is usually wanted in the influence for having deviation etc., and to ensure to export energy voltage stabilizing, but this mode is not
The stability of system operation can be influenced conducive to energy saving and larger power attenuation, while also bad to the adaptability of field application.
It is therefore desirable to feedback control is added so that the transmission of energy has controllability, ensures complicated field application oneself
Adaptability, while the waste of energy will not be caused again.
Existing power amplifier cannot carry out low different system switching, sensitivity, reconfigurability, bad adaptability.
In the communications, the broad beam characteristic of antenna can provide better communication stability for system, eliminate communication blind district,
Therefore broad beam microstrip antenna is always the problem of urgent need to resolve.Double polarized micro strip antenna is while minification, surface wave
Radiation proportion can increase, the beam angle of antenna can be increased, and can reach 95 °, but still cannot be satisfied currently to width
The requirement of wave beam performance.Therefore, under conditions of meeting certain bandwidth of operation, small size, the width of double polarized micro strip antenna are realized
Wave beam is all the main bugbear for needing to solve.
The remote controlled intelligent charging spot is provided with special line maintenance telephone, can be convenient for users to contacting repair as early as possible
Staff repairs；The electric fan of setting can cool down to user simultaneously, highly practical；By being arranged in roadbed
Several inductive disks, it can be achieved that automobile wireless charging, avoid the problem of more automobiles are lined up charging for a long time.
The present invention solves the powerup issue of remote controlled intelligent charging spot, and can effectively increase system to environment
Adaptivity, make that system is permanent, stablizes, reliable operation.
In the feedback control,
When Buck circuit input voltages, which are less than it, exports voltage stabilizing value, output is unable to voltage stabilizing；
When Buck circuit input voltages, which are more than it, exports voltage stabilizing value, input power is constant, exports voltage stabilizing；
When Buck regulator circuit load resistances are constant, output voltage with high-frequency power amplifying circuit input power change
Change and enables Buck circuit output voltage stabilizings there are a critical inputs performance number；When input power is less than critical inputs performance number
When, output is unable to voltage stabilizing；When input power is higher than critical inputs performance number, voltage stabilizing is exported.
The present invention, which can either give, is mounted on the working power that high-voltage charging pile high-pressure side provides abundance steady in a long-term, Er Qieman
Sufficient charging pile high-voltage isulation requirement.Present invention employs adaptive feedback control, can adaptive complex environment very well, it is especially suitable
For the high voltage electric equipment of electromagnetic environment, temperature environment complexity, energy transmitting and receiving unit pair are required when reducing installation
Quasi- required precision to be easily installed, and effectively increases electric energy efficiency of transmission, in model machine of the invention, in transmission distance
From for 5m when, efficiency about improves 30% compared with opened loop control, transmission range be 10cm when, about improve 8%.
Feedback control unit, effectively reduces system cost, and cost can reduce about 10-20%.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Every any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (9)
1. a kind of remote controlled intelligent charging spot, which is characterized in that in the remote controlled intelligent charging spot cabinet
Portion is equipped with charging transformer；The charge coil in inductive disks installed in the charging transformer and the roadbed near cabinet is logical
Cross cable connection；The inductive disks, charge coil are both provided with multiple, and multiple charge coil parallel runnings；
The charge coil is sequentially connected AC/DC voltage regulation units, high frequency power amplifying unit and energy emitting element by conducting wire；
The AC/DC voltage regulation units use circuit of reversed excitation；The high frequency power amplifying unit uses high-frequency power amplifying circuit, input
DC power conversion at MHz sinusoidal ac, as energy emitting element input magnetic resonance unit driving source；
The vehicle-mounted coil is sequentially connected energy acceptance unit and rectification stable pressuring unit by conducting wire；The rectification stable pressuring unit is adopted
With full-bridge rectification Buck regulator circuits；The energy emitting element, energy acceptance unit constitute magnetic resonance unit；The energy connects
Unit is received, the MHz high-frequency electrical energys of energy emitting element transmitting are received by magnetic resonance；Energy emitting element is received by magnetic resonance
The MHz high-frequency electrical energys of transmitting；
The rectification stable pressuring unit includes the single-phase bridge rectification element and chip TMS 320 F 2812 being made of diode, and described two
The single-phase bridge rectification element and chip TMS 320 F 2812 that pole pipe is constituted constitute full-bridge rectification Buck regulator circuits；Energy acceptance
It is in automobile is battery powered that unit, which receives after energy is rectified and full-bridge rectification Buck regulator circuits,；
The charge coil is wirelessly connected with charging control unit input terminal；The vehicle-mounted coil and feedback control unit output end
It is wirelessly connected；The charging control unit is integrated in feedback control unit on remote control information processing terminal；
Wireless communication is communicated using ZigBee units；
The feedback control unit includes energy acceptance element circuit information acquisition module, energy acceptance unit energy control mould
Block, energy emitting element circuit information acquisition module, energy emitting element energy control module；The energy acceptance element circuit
Information acquisition module passes through wireless connection with energy acceptance unit energy control module；The energy emitting element circuit information is adopted
Collection module passes through wireless connection with energy emitting element energy control module；The energy acceptance unit energy control module and energy
Transmitter unit energy control module is measured to be wirelessly connected；
The high frequency power amplifying unit is provided with shell, and the enclosure is provided with；
Field programmable gate array module is generated for completing digital pre-distortion and envelope；
Envelop modulator is connect with field programmable gate array by cable, passes through RF cable and envelope-tracking power amplification
Device connects, the peak-to-average force ratio for inhibiting envelope tracking power amplifier to generate；
Envelope tracking power amplifier is connect by cable with envelop modulator, for improving drain voltage from low input power
To the efficiency of the saturation state of peak power；
Frequency overlapped-resistable filter is connect with programmable gate array and envelope tracking power amplifier by RF cable scene, is used for
Reduce the aliasing components in output level；
Adaptation module is connect by RF cable with circulator, the compensation characteristic for digital pre-distortion to be adaptively adjusted；
The energy acceptance unit is integrated with broad beam double polarized micro strip antenna, and with energy acceptance element circuit information collection mould
Block connects；Broad beam double polarized micro strip antenna includes the feeding network substrate being embedded in a supporting frame and is connected to feed
The radiation substrate of network substrate top, the radiation substrate are equipped with the micro-strip being made of at least three discrete miniature radiation fins
Radiation fin is then equipped with the feed line of at least two interconnections on the feeding network substrate；Each miniature radiation fin and feed
At least one feed probes are all connected between line, the top of wherein feed probes is connected to miniature radiation fin, and end then connects
In feed line；The bottom of the feeding network substrate is attached to metal base plate, each between miniature radiation fin and metal base plate
It is connected at least one short-circuit column, the top of short-circuit column is connected to miniature radiation fin, and end passes through feeding network substrate and metal
Bottom plate connects；Metal base plate bottom surface side is additionally provided at least two radio-frequency joints, top pass through feeding network substrate with
Feed line connects.
2. remote controlled intelligent charging spot as described in claim 1, which is characterized in that all miniature radiation fin arrangements are in circle
Shape；
The supporting frame is metal material or dielectric material, and is furnished with flange hole on supporting frame, is installed for antenna；
The radiation substrate and feeding network substrate are printed circuit board；
One jiao of each miniature radiation fin is equipped with corner apertures, and each corner apertures corresponds to the end of a feed line, corresponding to present
The top of electric probe is plugged in corner apertures, and end is then plugged on feed thread end corresponding with the corner apertures position；
The crossover sites of the feed line are attached by the bridge element of foil structures；
Miniature radiation fin is equipped with through-hole, and the top of corresponding short circuit column is plugged in through-hole；
It is additionally provided with metal material or the support column of dielectric material, the top and end of the support column are respectively connected to spoke
Penetrate substrate and feeding network substrate；
Position corresponding with the radio-frequency joint is equipped with current feed department on the feed line, and the top of the radio-frequency joint is specific
It is connect with the current feed department；
The radio-frequency joint includes inner core and is wrapped in the crust of inner core, and the top of the inner core is connected to the feed of feed line
Portion, and the top of crust is then welded in metal base plate bottom surface side.
3. remote controlled intelligent charging spot as described in claim 1, which is characterized in that high frequency power amplifying unit is further
Including power interface, circulator；
On the shell, the circulator is connect with envelope tracking power amplifier and adaptation module for the power interface installation；
The envelope is generated to be integrated by envelope and be constituted with envelope mapping；Envelope is integrated for eliminating high fdrequency component；Envelope mapping is used
In the measurement of mapping envelope to the instantaneous envelope of drain voltage；
The power tube of the envelope tracking power amplifier is LDMOS, and running environment is parallel multiband pattern；
Control centre is made of field programmable gate array, realizes digital pre-distortion, and digital pre-distortion, which is that multiband number is pre-, to be lost
True unit, digital predistortion unit is captured in each wave band and digitized processing will alleviate the parallel multiband operation mould of power amplifier respectively
Regeneration distortion spectrum under formula and intermodulation distortion.
4. remote controlled intelligent charging spot as described in claim 1, which is characterized in that the remote controlled intelligence is filled
Electric stake further includes：
Electric fan, Air Filter, special line maintenance telephone, cushion and charging head, oscillating element, touch control screen；
The cabinet center is embedded with electric fan, and touch control screen is embedded on the upside of the electric fan；Pass through spiral shell below the cabinet
Bolt is fixed with special line maintenance telephone；It is provided with charging head on the right side of the cabinet；
The charging transformer is electrically connected by oscillating element with the charge coil being preset in roadbed induced inside disk.
5. remote controlled intelligent charging spot as described in claim 1, which is characterized in that be covered on the electric fan dust-proof
Net.
6. remote controlled intelligent charging spot as described in claim 1, which is characterized in that the special line maintenance telephone is set with
Cushion.
7. remote controlled intelligent charging spot as described in claim 1, which is characterized in that the charging head and charging transformer
Electrical connection.
8. remote controlled intelligent charging spot as described in claim 1, which is characterized in that be electricity in vehicle-mounted coil and automobile
Pond is electrically connected, and battery is electrically connected with driving motor electricity.
Equipment has several inductive disks in roadbed near the cabinet, the charge coil parallel running in several inductive disks.
9. remote controlled intelligent charging spot as described in claim 1, which is characterized in that installation inside the touch control screen
Control mainboard；It is connect with Third-party payment server, the payment device for the payment of mobile phone barcode scanning；It connect, uses with Unionpay server
In the card-inserted device of plug-in card payment.
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| CN201810152952.3A CN108312880A (en) | 2018-02-21 | 2018-02-21 | A kind of remote controlled intelligent charging spot |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810152952.3A CN108312880A (en) | 2018-02-21 | 2018-02-21 | A kind of remote controlled intelligent charging spot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532641A (en) * | 2020-12-07 | 2021-03-19 | 四川光慧新能源科技有限公司 | Communication protocol and message format for connecting internal modules of charging pile |
| CN115303104A (en) * | 2022-10-12 | 2022-11-08 | 国网电动汽车服务(天津)有限公司 | Charging pile |
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