CN107031443A - A kind of dynamic radio conducts electricity passage, road, system - Google Patents
A kind of dynamic radio conducts electricity passage, road, system Download PDFInfo
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- CN107031443A CN107031443A CN201710221410.2A CN201710221410A CN107031443A CN 107031443 A CN107031443 A CN 107031443A CN 201710221410 A CN201710221410 A CN 201710221410A CN 107031443 A CN107031443 A CN 107031443A
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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
- B60L53/30—Constructional details of charging stations
-
- 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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- 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
- Y02T90/12—Electric charging stations
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention is applied to conduct electricity passage, including the road surface for driving there is provided a kind of dynamic radio, in addition to：Multiple magnetic resonance wirelessly conduct electricity device, are arranged under the road surface, and are arranged in column along road surface running vehicle direction, are wirelessly conducted electricity for carrying out magnetic resonance to the vehicle that need to conduct electricity；Wherein, the magnetic resonance device that wirelessly conducts electricity includes：Launch end-coil；And high-frequency ac power, provide high-frequency alternating current to the transmitting coil.In embodiments of the present invention, automobile is charged without traveling to special charging pile, and need to only travel can obtain electric energy in the wireless passage that conducts electricity by the device that wirelessly conducts electricity, and greatly save the charging interval, automobile charging is more flexibly, conveniently；And magnetic resonance conducts electricity efficiency high, energy resource consumption can be reduced, construction cost, and maintenance cost can also be saved using multiple magnetic resonance device that wirelessly conducts electricity.
Description
Technical field
The invention belongs to the wireless field that conducts electricity, more particularly to a kind of dynamic radio conducts electricity passage, road, system.
Background technology
As national governments are encouraged to the input of new-energy automobile, electric automobile is obtained as a more feasible option
Obtain and support extensively.
Traditional charging electric vehicle needs specific charging pile, is connected by cable with charging pile, to be obtained from charging pile
Electric energy, is that battery technology can not keep up with the development of electric automobile the problem of nowadays maximum, one is that condenser capacity is limited still,
The long stroke demand of electric automobile can not be supported, two be that charging rate is slow, and charging every time is required to the time of a few hours, time mistake
It is long.
Therefore, because of the limitation of battery technology so that electric automobile can not carry out long-distance running, have a strong impact on electric automobile
Popularization and development.
The content of the invention
The embodiment of the present invention provides a kind of multisection type dynamic radio and conducted electricity passage, road, system, it is intended to solve because of battery skill
The limitation of art so that electric automobile can not carry out long-distance running, the problem of having had a strong impact on the popularization and development of electric automobile.
The embodiment of the present invention is achieved in that a kind of multisection type dynamic radio conducts electricity passage, including the road for driving
Face, in addition to：
Multiple magnetic resonance wirelessly conduct electricity device, are arranged under the road surface, and are arranged in column along road surface running vehicle direction, use
Wirelessly conducted electricity in carrying out magnetic resonance to the vehicle that need to conduct electricity；
Wherein, the magnetic resonance device that wirelessly conducts electricity includes：
Launch end-coil；And
High-frequency ac power, high-frequency alternating current is provided to the transmitting coil.
The embodiment of the present invention also provides a kind of dynamic radio and conducted electricity road, including：
At least two dynamic radios as described above placed side by side conduct electricity passage.
The embodiment of the present invention also provides a kind of dynamic radio and conducted electricity system, including：
Need to be conducted electricity vehicle；And
Dynamic radio as described above conducts electricity road, can carry out magnetic resonance to the vehicle that need to conduct electricity and wirelessly conduct electricity；
Wherein, the vehicle that need to conduct electricity includes：
End-coil is received, can realize that electricity is wirelessly received in magnetic resonance with transmitting terminal fitting coils；And
Capacitor, is connected with the reception end-coil, stores the electric energy received by the reception end-coil, can be the need
The vehicle that conducts electricity is powered.
In the embodiment of the present invention, the wireless passage that conducts electricity for the device composition that wirelessly conducted electricity using multiple magnetic resonance, it is possible to use
Form magnetic resonance effect between transmitting end-coil and the automobile that need to conduct electricity to be conducted electricity so that automobile is without traveling to special charging
Stake is charged, and need to only travel can obtain electric energy in the wireless passage that conducts electricity by the device that wirelessly conducts electricity, and greatly save charging
Time, automobile charging is more flexibly, conveniently；And magnetic resonance conducts electricity efficiency high, energy resource consumption can be reduced, using multiple magnetic resonance
The wireless device that conducts electricity can also save construction cost, and maintenance cost.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram that magnetic resonance type provided in an embodiment of the present invention wirelessly conducts electricity；
Fig. 2 is that a kind of dynamic radio provided in an embodiment of the present invention conducts electricity the circuit equivalent structural representation of system；
Fig. 3 is that a kind of dynamic radio provided in an embodiment of the present invention conducts electricity the structural representation of passage；
Fig. 4 is that multiple magnetic resonance provided in an embodiment of the present invention wirelessly conduct electricity the structure connection diagram of device；
Fig. 5 is that dynamic radio provided in an embodiment of the present invention conducts electricity transmitting end-coil and receiving terminal loop construction in system
Schematic diagram；
Fig. 6 is the mutual inductances emulation that dynamic radio provided in an embodiment of the present invention conducts electricity in road between two transmitting end-coils
Result figure；
Fig. 7 is that a kind of dynamic radio provided in an embodiment of the present invention conducts electricity the structural representation of road；
Fig. 8 is that a kind of dynamic radio provided in an embodiment of the present invention conducts electricity the structural representation of system.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the theory structure that magnetic resonance type provided in an embodiment of the present invention wirelessly conducts electricity, for convenience of description, only
Show the part related to the embodiment of the present invention.
Magnetic resonance wirelessly conducts electricity system, generally by high-frequency ac power 12, transmitting end-coil 11, receives end-coil 21 and negative
Carry 22 to constitute, and make transmitting terminal consistent with the resonant frequency of receiving terminal, to produce magnetic resonance effect.Work as system worked well,
And the working frequency of high-frequency ac power 12 it is consistent with resonant frequency when, receive end-coil 21 with transmitting end-coil 11 occur altogether
Shake, so as to realize that magnetic resonance wirelessly conducts electricity.
Fig. 2,3 show that a kind of dynamic radio of the embodiment of the present invention conducts electricity system and dynamic radio conducts electricity the knot of passage
Structure, for convenience of description, illustrate only the part related to the embodiment of the present invention.
A kind of dynamic radio conducts electricity passage, including the road surface for driving, in addition to：
Multiple magnetic resonance wirelessly conduct electricity device, set under the pavement, and are arranged in column along road surface running vehicle direction, for pair
The vehicle that need to conduct electricity carries out magnetic resonance and wirelessly conducted electricity；
Wherein, the magnetic resonance device that wirelessly conducts electricity includes：
Launch end-coil 11；And high-frequency ac power 12, provide high-frequency alternating current to transmitting coil.
Wirelessly conducted electricity the wireless passage that conducts electricity of device composition using multiple magnetic resonance, it is possible to use transmitting end-coil 11 is with needing
Conduct electricity and magnetic resonance effect is formed between automobile 2 conducted electricity so that automobile 2 is charged without travel to special charging pile,
Need to only travel can obtain electric energy in the wireless passage that conducts electricity by the device that wirelessly conducts electricity, and greatly save the charging interval, automobile 2 fills
Electricity is more flexibly, conveniently；And magnetic resonance conducts electricity efficiency high, energy resource consumption can be reduced, is wirelessly conducted electricity dress using multiple magnetic resonance
Construction cost can also be saved by putting, and maintenance cost.
In embodiments of the present invention, wirelessly the conduct electricity effectively coverage that conducts electricity of device of a magnetic resonance is defined as one
Sub- power supply area, wherein, P1, P2 ... PN are high-power high-frequency AC power 12, and whole dynamic power track is divided into several
Sub- power supply area, each region has been equipped with a transmitting end-coil 11, and each transmitting end-coil 11 passes through a relay 13
It is connected with high-frequency ac power 12.
Automobile sensing module 14 is additionally provided with magnetic resonance wirelessly conducts electricity device, when electric automobile 2 drives into a certain height
During power supply area, corresponding automobile sensing module 14 will trigger the relay 13 that the magnetic resonance wirelessly conducts electricity in device, be allowed to
Connect high-frequency ac power 12, electric automobile 2 can wirelessly be conducted electricity with the magnetic resonance device formation magnetic resonance effect, obtain electricity
Energy.When electric automobile 2 leaves a certain sub- power supply area, corresponding relay 13 just disconnects high-frequency ac power 12 to save
Electric energy.Therefore, when the automobile 2 that need to conduct electricity is run in multisection type power supply area, each sub- power supply area is by with the operation of dolly
The offer electric energy of automobile 2 that need to conduct electricity is provided successively, the dynamic radio for the automobile 2 that need to conduct electricity powered so as to realize.
It is used as one embodiment of the invention, it is preferred that automobile sensing module 14 is phase sensing module, the phase position sensing mould
The magnetic resonance phase angle change that block is wirelessly conducted electricity by sensing magnetic resonance between device and the vehicle that need to conduct electricity, it is determined that the vehicle that need to conduct electricity
Wirelessly conduct electricity the relative position of device with magnetic resonance, to control magnetic resonance wirelessly to conduct electricity the keying of device.
In embodiments of the present invention, with reference to Fig. 3, when automobile is travelled along dynamic power passage, according to passage and electronic
The parameters such as the coil of automobile, you can calculate phase of the current hysteresis after high-frequency ac power 12 or signal circuit voltage in coil
The change at angle, the relative position of automobile and power coil edge is can determine whether according to the change at the phase angle.Specifically, working as system
Judge there is phase angle change between the automobile and the transmitting end-coil 11 and high-frequency ac power 12 of a certain sub- power supply area, also,
Its phase angle difference is less than a preset value in certain time period, can now determine that the automobile is located at the sub- power supply area, then can be right
The automobile is wirelessly conducted electricity.When system judges the transmitting end-coil 11 and high-frequency alternating current of the automobile and a certain sub- power supply area
There is its phase angle difference in phase angle change, also, certain time period to be more than or equal to a preset value between source 12, can now determine
The automobile sails out of the sub- power supply area, then the wireless unit that conducts electricity can be closed, to save electric energy.
Further, phase angle can be obtained by formula：
Specific computational methods are that, with reference to Fig. 2, the resonance angular frequency that all power supply area transmitting terminals are made first is unanimously
ωP0, receiving terminal resonance angular frequency is ωS0, then the quality factor Q of transmitting terminal and receiving terminalPAnd QSIt can be expressed as：
Mapping impedance is the equiva lent impedance when impedance of receiving terminal being converted to transmitting terminal, is set to ZSreflect, and have：
It can then obtain：
If transmitting terminal is F relative to the offset of resonant frequency with receiving terminal working frequencyPAnd FSThen have：
In above formula, ω is work angular frequency.FormulaAnd (3), (5) and (6) generation
Entering can obtain in formula (4)：
Joint above-mentioned formula, then can obtain the voltage of transmitting terminal and the phase angle formula between electric current.
Magnetic resonance wirelessly conducts electricity device by using phase sensing module, and automobile 2 and transmitting end line can be known exactly
The relative position enclosed between 11 edges, also, by the position of phase sensing module sensing automobile 2, pavement behavior is adapted to,
It is that can be used without transformation road surface in addition, construction cost can be reduced, magnetic resonance is suitably applied and wirelessly conducts electricity technically.
Be used as another embodiment of the present invention, it is possible to understand that, automobile sensing module 14 can also using infrared sensor,
The one or more such as pressure sensor, imaging sensor can perceive the sensor that vehicle drives into, to provide accurate vehicle location
Judge, and by the vehicle position data acquired in sensor, magnetic resonance described in start and stop wirelessly conducts electricity device.
Among practical application, automobile sensing module 14 can obtain electric energy by an independent small-power power supply module,
To ensure to obtain enough power supplies when closing high-frequency ac power 12.Wirelessly conducted electricity the son of device when vehicle drives into the magnetic resonance
During power supply area, automobile sensing module 14 can obtain the relative position between vehicle and transmitting end-coil 11 edge, when it enters
When entering to self-powered region, triggering starts the instruction of high-frequency ac power 12, the transmitting terminal of device so that magnetic resonance wirelessly conducts electricity
Coil 11 enters working condition, is that the progress magnetic resonance of automobile 2 wirelessly conducts electricity.This is rolled away from when automobile sensing module 14 senses vehicle
Magnetic resonance wirelessly conduct electricity device sub- power supply area when, triggering close high-frequency ac power 12 instruction, to save the energy.
The device that can wirelessly be conducted electricity for magnetic resonance of automobile sensing module 14 provides the reference position of automobile 2 so that magnetic resonance without
Line conducts electricity device only when automobile 2 is sailed through sub- power supply area corresponding to it, is just powered for automobile 2, and sailed out of in automobile 2
During sub- power supply area, close magnetic resonance and wirelessly conduct electricity device, the service life of equipment with the effectively save energy, can be improved.
Referring to Fig. 4, in embodiments of the present invention, the magnetic resonance device that wirelessly conducts electricity includes transmitting end-coil 11, and to hair
Ray circle provides the high-frequency ac power 12 of high-frequency alternating current.Wherein, high-frequency ac power 12 includes high-voltage DC power supply, and
High-voltage DC power supply is subjected to current inversion processing, high-frequency ac power 12 is formed, and export to the inversion for launching end-coil 11
Device.
It is preferred that, in dynamic radio conducts electricity passage, the high-voltage DC power supply that multiple magnetic resonance wirelessly conduct electricity in device is
Same high-voltage DC power supply, it is possible to understand that, high-frequency ac power 12 is because of its inherent characteristic, if carrying out long range biography on passage
Electricity, then can cause larger energy loss, and have higher requirement to cable, improve the operation cost of the wireless passage that conducts electricity.And
In the present embodiment, small with transmission loss using high voltage direct current as transmission tariff, produced magnetic interference is small etc. has
Beneficial effect so that wirelessly the conduct electricity electric power system of device of magnetic resonance is more saved, reliably.
In embodiments of the present invention, magnetic resonance wirelessly conducts electricity device also including being connected to the high-frequency ac power 12 and hair
The adjustable compensation electric capacity C penetrated between end-coil 11.Because system is operated under high frequency state, transmitting end-coil 11 and reception end line
The parasitic capacitance of circle can not be ignored, it is necessary to be compensated using adjustable compensation electric capacity C.Adjustable compensation electric capacity C is used to adjust institute
State magnetic resonance wirelessly to conduct electricity the resonant frequency of device, to realize the resonant frequency and the vehicle that need to conduct electricity of transmitting end-coil 11
Receive end-coil consistent, improve magnetic resonance and conduct electricity efficiency.
, can be according to the actual parameter value of device, the humorous of transmitting end-coil 11 is adjusted flexibly using adjustable compensation electric capacity C
Vibration frequency, it is ensured that the resonant frequency of transmitting end-coil 11 is as far as possible consistent with the resonant frequency of the reception end-coil of automobile 2, carries
The efficiency of transmission that high magnetic resonance conducts electricity.
In practical application, in certain limit between the coil of identical frequency, energy can be entered in the way of wireless energy transfer
Row transmission.In embodiments of the present invention, due to each sub- power supply area the resonant frequency of transmitting end-coil 11 with electric automobile 2
Unanimously, so that resonant frequency is consistent each other, therefore, when systems are functioning properly, a certain sub- power supply area detection
Connected to automobile 2 after high-frequency ac power 12, energy not only can be delivered to rail from the transmitting end-coil 11 of the sub- power supply area
The reception end-coil that the dolly run on road is carried, can also be with producing sensing in the transmitting end-coil 11 of adjacent sub- power supply area
Electric current.
Therefore, further, between two neighboring magnetic resonance wirelessly conducts electricity between device induced current and operating current
Ratio should be less than 1:10.In practice, when two coil relevant parameters and the timing of high frequency voltage one, the raw electricity of end-coil inner sense is received
The size of stream is relevant only with mutual inductance M size.And when the timing of coil parameter one, the distance dependent of M size only with two coils, because
This now receive induced current in end-coil only with distance dependent.
It is that a kind of magnetic resonance provided in an embodiment of the present invention conducts electricity transmitting end-coil and receiving terminal in system referring to Fig. 5
The structure of coil, for convenience of description, illustrate only the part related to the embodiment of the present invention.
In embodiments of the present invention, with reference to Fig. 1, Line 1 circle is considered as transmitting end-coil 11, and relevant parameter is respectively 2w1=
650mm, 2h1=76mm, height l1=16mm, number of turn N1=15, self-induction L1=186.7uH, internal resistance R1=0.642 Ω, compensation
Electric capacity C1=18.76nF；No. 2 coils are considered as reception end-coil 21, and relevant parameter is respectively 2w2=650mm, 2h2=76mm, height
Spend l2=16mm, number of turn N2=15, self-induction L2=194.73uH, internal resistance R1=0.612 Ω, compensating electric capacity C1=19.76nF, work
UAC=40V is taken as voltage, analogous diagram can be obtained as shown in Figure 6.
As seen from Figure 6, when two former-wound coil centre distances are about S=0.72m, induced current is zero, when two lines
Enclose centre distance (S farther out>When 1.2m), induced current is smaller negligible.
It should be understood that the present invention can be carried out actual parameter according to the method described above when laying sub- power supply area coil
Emulation finds optimal coil and lays spacing, and combines the actual conditions of the difference of emulation and full-scale condition and suitably adjust between coil
Away from so that when one, which is launched end-coil 11, connects large power supply, induced current and line in adjacent transmitting end-coil 11
The ratio between operating current in circle should be less than 1:10, so that efficiency of transmission interference of the induced current to system is preferably minimized, carry
High magnetic resonance conducts electricity the energy transmission efficiency of system.
In embodiments of the present invention, with reference to Fig. 4, magnetic resonance wirelessly conducts electricity device in the mistake conducted electricity for automobile progress magnetic resonance
Cheng Zhong, in order to save the energy, it is preferred that the magnetic resonance that magnetic resonance wirelessly conducts electricity between device and the vehicle that need to the conduct electricity efficiency that conducts electricity is big
In 80%.Specifically, magnetic resonance conducts electricity, efficiency is obtained by formula：
Wherein, PPLaunch the power of end-coil 11, PSTo receive the power of end-coil 21, when the magnetic resonance efficiency that conducts electricity is more than
When 80%, the magnetic resonance system of conducting electricity can obtain the effect that preferably conducts electricity so that the magnetic resonance system that conducts electricity more is saved, efficiently,
Dynamic radio can be shortened to conduct electricity the laying distance of passage, the construction cost of passage is reduced.
Also, it is to be understood that, in the design of the transmitting end-coil 11 of sub- power supply area, width and the needs of coil fill
The width of the electric automobile of electricity is suitable, and such as bicycle road dynamic radio charge tunnel, coil width is designed as 2 to 3 meters i.e.
Can.In the design of the transmitting end-coil 11 of sub- power supply area, the length of coil can be determined according to actual demand with limitation.
In embodiments of the present invention, wirelessly conducted electricity the wireless passage, Ke Yili of conducting electricity of device composition using multiple magnetic resonance
Conducted electricity with magnetic resonance effect is formed between transmitting end-coil 11 and the automobile that need to conduct electricity so that automobile is without travelling to special
Charging pile is charged, and need to only travel can obtain electric energy in the wireless passage that conducts electricity by the device that wirelessly conducts electricity, and greatly save
In the charging interval, automobile charging is more flexibly, conveniently；And magnetic resonance conducts electricity efficiency high, energy resource consumption can be reduced, using multiple magnetic
Resonance is wireless, and the device that conducts electricity can also save construction cost, and maintenance cost.
It is that a kind of dynamic radio provided in an embodiment of the present invention conducts electricity the structure of road referring to Fig. 7.
In embodiments of the present invention, dynamic radio conduct electricity road including at least two place side by side such as above-mentioned Fig. 1-5 institutes
The dynamic radio shown conducts electricity passage.The wherein every dynamic radio passage that conducts electricity includes：
Multiple magnetic resonance wirelessly conduct electricity device, set under the pavement, and are arranged in column along road surface running vehicle direction, for pair
The vehicle that need to conduct electricity carries out magnetic resonance and wirelessly conducted electricity.
Wherein, the magnetic resonance device that wirelessly conducts electricity includes：Launch end-coil 11；And high-frequency ac power, to the transmitting
Coil provides high-frequency alternating current.
The conduct electricity principle of passage of each dynamic radio refers to description introduction to above-mentioned Fig. 1-5, and the embodiment of the present invention exists
This is repeated no more.
As one embodiment of the invention, the dynamic radio more than bend with a varied topography conducts electricity passage can be short using loop length
Design more than quantity.Certainly, the dynamic radio more than the simple straight way of landform conduct electricity passage also can be using the few design of the long quantity of length.
The automobile that can so make to conduct electricity forms more efficient energy transmission environment with the transmitting end-coil 11 on road all the time, and can be with
Magnetic resonance is according to circumstances saved wirelessly to conduct electricity the construction cost of device.
In embodiments of the present invention, using at least two wireless passages that conduct electricity arranged side by side, it can make on a juxtaposed position
Many need conduct electricity automobile wirelessly conducted electricity with wireless magnetic resonance device transmitting end-coil 11 formation magnetic resonance effect conducted electricity, make
Automobile is charged to special charging pile without traveling, need to only travel wirelessly conduct electricity passage can be by the dress that wirelessly conducts electricity
Acquisition electric energy is put, the charging interval is greatlyd save, automobile charging is more flexibly, conveniently；And magnetic resonance conducts electricity efficiency high, it can drop
Low energy expenditure, construction cost, and maintenance cost can also be saved using multiple magnetic resonance device that wirelessly conducts electricity.
Further, between adjacent two dynamic radios conduct electricity passage, two neighboring magnetic resonance wirelessly conduct electricity device it
Between induced current and ratio between operating current be less than 1:10.In practice, when two coil relevant parameters and high frequency voltage
One timing, the size for receiving induced current in end-coil 21 is relevant only with mutual inductance M size.And when the timing of coil parameter one, M's
Distance dependent of the size only with two coils, thus now receive end-coil 21 in induced current only with distance dependent.
Referring to Fig. 5, Fig. 6, the present invention can be carried out actual parameter according to the method described above when laying sub- power supply area coil
Emulation finds optimal coil and lays spacing, and combines the actual conditions of the difference of emulation and full-scale condition and suitably adjust between coil
Away from, make two dynamic radio charge tunnels it is adjacent transmitting end-coil 11 in induced current and coil in operating current between
Ratio should be less than 1:10, so that induced current is preferably minimized to the interference of the efficiency of transmission of system, improves magnetic resonance and conduct electricity system
Energy transmission efficiency.
It is that a kind of dynamic radio provided in an embodiment of the present invention conducts electricity system referring to Fig. 8.Wherein, the dynamic radio conducts electricity
System includes：
Need to be conducted electricity vehicle；And
Can be conducted electricity road to the dynamic radio as shown in Figure 7 that the vehicle progress magnetic resonance that need to conduct electricity wirelessly conducts electricity.
Wherein, the vehicle that need to conduct electricity includes that the reception end-coil for realizing that electricity is wirelessly received in magnetic resonance can be coordinated with transmitting end-coil 11
21；And be connected with the reception end-coil 21, the electric energy received by the reception end-coil 21 is stored, be able to need to be conducted electricity to be described
The capacitor 23 that the load 22 of vehicle is powered.
In embodiments of the present invention, the conduct electricity detailed construction of road of the dynamic radio refers to dynamic nothing shown in Fig. 1-7
Line conducts electricity passage, road, and the embodiment of the present invention will not be repeated here.
As an embodiment of the present invention, receive end-coil 21 and be located in vehicle, preferably can be located at lower vehicle, with
Close to road surface, electric energy efficiency of transmission is improved.Also, the resonant frequency of operation of the reception end-coil 21 should conduct electricity with dynamic radio
The power of transmitting end-coil 11 on road is consistent, is conducted electricity system with constituting magnetic resonance.
The capacitor 23 that need to be conducted electricity in vehicle can be lithium ion or lithium polymer battery, or other can store electric energy
Capacitor 23, and being connected with receiving end-coil 21, wirelessly conducts electricity device when vehicle is located at the conduct electricity magnetic resonance of road of dynamic radio
During sub- power supply area, electric energy can be obtained by receiving end-coil 21, and be stored, existed with the load 22 for ensureing vehicle
Dynamic radio conducts electricity the power supply outside road.
In embodiments of the present invention, automobile sensing module can obtain electric energy by an independent small-power power supply module,
To ensure to obtain enough power supplies when closing high-frequency ac power.When vehicle drive into the magnetic resonance wirelessly conduct electricity device son supply
During electric region, automobile sensing module can obtain the relative position between vehicle and transmitting end-coil 11 edge, when it is entered
During self-powered region, triggering starts the instruction of high-frequency ac power, the transmitting end-coil 11 of device so that magnetic resonance wirelessly conducts electricity
It is that automobile progress magnetic resonance wirelessly conducts electricity into working condition.Now, the reception end-coil 21 on automobile can be with transmitting end-coil
11 form magnetic resonance effect, and receive in the electric energy that transmitting end-coil 11 is transmitted, storage to the capacitor 23 being attached thereto.
When automobile sensing module sense vehicle roll away from the magnetic resonance wirelessly conduct electricity device sub- power supply area when, triggering close
Reception end-coil 21 on the instruction of high-frequency ac power, the automobile device that can wirelessly conduct electricity because of magnetic resonance is closed to close and with it terminate
Magnetic resonance effect, terminates to receive electric energy and is sailed toward next sub- power supply area, repeated the above steps, until leaving dynamic radio biography
The region that effectively conducts electricity of electric road.
In embodiments of the present invention, dynamic radio conducts electricity passage and the vehicle composition dynamic radio that need to conduct electricity conducts electricity system, can
To be conducted electricity using launching end-coil 11 between the automobile that need to conduct electricity and form magnetic resonance effect so that automobile is without travel to special
The charging pile of door is charged, and need to only travel can obtain electric energy in the wireless passage that conducts electricity by the device that wirelessly conducts electricity, and save significantly
The charging interval is saved, automobile charging is more flexibly, conveniently；And magnetic resonance conducts electricity efficiency high, energy resource consumption can be reduced, using many
The individual magnetic resonance device that wirelessly conducts electricity can also save construction cost, and maintenance cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
- The passage 1. a kind of dynamic radio conducts electricity, including the road surface for driving, it is characterised in that also include：Multiple magnetic resonance wirelessly conduct electricity device, are arranged under the road surface, and are arranged in column along road surface running vehicle direction, for pair The vehicle that need to conduct electricity carries out magnetic resonance and wirelessly conducted electricity；Wherein, the magnetic resonance device that wirelessly conducts electricity includes：Launch end-coil；AndHigh-frequency ac power, high-frequency alternating current is provided to the transmitting coil.
- 2. multisection type dynamic radio charge tunnel as claimed in claim 1, it is characterised in that the high-frequency ac power bag Include：High-voltage DC power supply；AndInverter, current inversion processing is carried out by the high-voltage DC power supply, forms high-frequency ac power, and export to the hair Penetrate end-coil.
- 3. multisection type dynamic radio charge tunnel as claimed in claim 2, it is characterised in that the multiple magnetic resonance is wirelessly passed High-voltage DC power supply in electric installation is same high-voltage DC power supply.
- 4. multisection type dynamic radio charge tunnel as claimed in claim 1, it is characterised in that the magnetic resonance wirelessly conducts electricity dress Putting also includes：Adjustable compensation electric capacity, be connected to the high-frequency ac power and transmitting end-coil between, for adjust the magnetic resonance without Line conducts electricity the resonant frequency of device, to realize the resonant frequency and the reception end line of the vehicle that need to conduct electricity of the transmitting end-coil Circle is consistent.
- 5. multisection type dynamic radio charge tunnel as claimed in claim 1, it is characterised in that the magnetic resonance wirelessly conducts electricity dress Putting also includes：Phase sensing module, by sensing the magnetic resonance phase that the magnetic resonance wirelessly conducts electricity between device and the vehicle that need to conduct electricity Parallactic angle changes, and determines that need to conduct electricity vehicle and the magnetic resonance wirelessly conduct electricity the relative position of device, to control the magnetic to be total to Shake the keying of the wireless device that conducts electricity.
- 6. multisection type dynamic radio charge tunnel as claimed in claim 1, it is characterised in that the two neighboring magnetic resonance without Ratio between the operating current in induced current and coil that line conducts electricity between device is less than 1:10.
- 7. multisection type dynamic radio charge tunnel as claimed in claim 1, it is characterised in that the magnetic resonance wirelessly conducts electricity dress Put the magnetic resonance between the vehicle that need to conduct electricity and conduct electricity efficiency more than 80%.
- The road 8. a kind of dynamic radio conducts electricity, it is characterised in that including：At least two dynamic radios as described in claim 1-6 placed side by side conduct electricity passage.
- The road 9. multisection type dynamic radio as claimed in claim 7 conducts electricity, it is characterised in that in described adjacent two dynamic nothings Line conducts electricity between passage, and the two neighboring magnetic resonance wirelessly conducts electricity the induced current between device and the ratio between operating current Less than 1:10.
- The system 10. a kind of dynamic radio conducts electricity, it is characterised in that including：Need to be conducted electricity vehicle；AndDynamic radio as described in claim 8-9 conducts electricity road, can carry out magnetic resonance to the vehicle that need to conduct electricity and wirelessly conduct electricity；Wherein, the vehicle that need to conduct electricity includes：End-coil is received, can realize that electricity is wirelessly received in magnetic resonance with transmitting terminal fitting coils；AndCapacitor, is connected with the reception end-coil, stores the electric energy received by the reception end-coil, be able to need to be conducted electricity to be described Vehicle is powered.
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| CN107031443B (en) | 2019-09-20 |
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