CN108382246A - Three-phase type magnetic coupling applied to the power supply of vehicle dynamic radio - Google Patents
Three-phase type magnetic coupling applied to the power supply of vehicle dynamic radio Download PDFInfo
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- CN108382246A CN108382246A CN201810230806.8A CN201810230806A CN108382246A CN 108382246 A CN108382246 A CN 108382246A CN 201810230806 A CN201810230806 A CN 201810230806A CN 108382246 A CN108382246 A CN 108382246A
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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
-
- 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
-
- 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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- 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
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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
- Y02T10/7072—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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
In order to overcome the problems, such as that output-power fluctuation is big in existing wireless power magnetic coupling, transmission range is relatively close, Electro Magnetic Compatibility is poor, the present invention provides a kind of three-phase type magnetic coupling applied to the power supply of vehicle dynamic radio, belongs to wireless power transmission technical field.The present invention includes the power supply rail and electric energy reception device for emitting electric energy；Power supply rail is mounted below the road of vehicle traveling direction；Power supply rail includes three phase supply cable and power supply rail magnetic core, and three phase supply cable winds are on power supply rail magnetic core；Three phase supply cable generates magnetic field after being powered and transmits electric energy to electric energy reception device；The fit system of three-phase cable and power supply rail magnetic core is that cross winding or sequence are wound, and for three-phase cable other than differing 1/3 driving cycle distance in spatial position upper edge direction of traffic, remaining is identical；The electric energy reception device is mounted on vehicle chassis, and generating voltage by electromagnetic induction principle powers to the load, and realizes the wireless transmission of electric energy.
Description
Technical field
The invention belongs to wireless power transmission technical field more particularly to a kind of three to power applied to vehicle dynamic radio
Phase formula magnetic coupling.
Background technology
Electric vehicle is many due to, charging inconvenience low by battery energy density, plug-in charging modes safety difference etc.
The restriction of problem, development and the speed promoted are slow.And dynamic radio power supply technique not only well solves the above problem, also makes
The constraint that electric vehicle has broken away from stopping for charging is obtained, solves the insufficient bottleneck problem of course continuation mileage.
Currently, the rail mounted wireless power magnetic coupling with core structure is by its good coupling performance and higher
Transimission power, be widely used in vehicle dynamic radio power supply system, there are many structure difference magnetic coupling by state
Inside and outside research institution proposes, as Publication No. CN201510560567 patent in double C parallel connections for proposing to be alternately arranged type wireless
Power supply rail has the shortcomings that output-power fluctuation is big during dynamic radio is powered；Document《A three-phase
inductive power transfer system for roadway-powered vehicles》The vehicle dynamic of middle proposition
It powers three-phase type magnetic coupling, there is no magnetic core in power supply rail, have the shortcomings that transmission range is closer；Document《Ultraslim
S-Type Power Supply Rails for Roadway-Powered Electric Vehicles》Middle proposition S types power supply
Track, although transmission range is farther out, single phase power supply mode, which is equally the structure, has dynamic radio for electric output power wave
Dynamic big drawback.
Invention content
In order to overcome in existing wireless power magnetic coupling, output-power fluctuation is big, transmission range is relatively close, electromagnetic compatibility
Property difference problem, the present invention provide it is a kind of applied to vehicle dynamic radio power supply three-phase type magnetic coupling.
The three-phase type magnetic coupling for being applied to the power supply of vehicle dynamic radio of the present invention, the three-phase type magnetic coupling
Include the power supply rail and electric energy reception device for emitting electric energy；
The power supply rail is mounted below the road of vehicle traveling direction；The power supply rail includes three phase supply cable
With power supply rail magnetic core 8, for constraining the magnetic line of force generated trend, wherein three phase supply cable winds are in power supply rail magnetic core 8
On；Three phase supply cable generates magnetic field after being powered and transmits electric energy to electric energy reception device；The three phase supply cable and power rail
The fit system of road magnetic core 8 is that cross winding or sequence are wound, and three phase supply cable is in addition in spatial position upper edge direction of traffic
1/3 driving cycle distance of difference is outer, remaining is identical；
The electric energy reception device is mounted on vehicle chassis, and generating voltage by electromagnetic induction principle powers to the load,
Realize the wireless transmission of electric energy.
Preferably, the power supply rail magnetic core 8 includes n magnetic core unit, and n magnetic core unit is connected to along direction of traffic
Together, each magnetic core unit includes bottom connection magnetic core 5, column 6 and pole shoe 7, and wherein n is positive integer, and is 3 multiple；
The bottom of column 6 is fixed on bottom connection magnetic core 5, and pole shoe 7 is fixed on the top of column 6, each magnetic core unit
Cross section and longitudinal section be in " I " fonts.
Preferably, the driving cycle distance is after adjacent six magnetic core units are closely joined together, along driving side
Upward length.
Preferably, the process of A phases power cable progress cross winding is：Along direction of traffic, from the off, A phases supply
After the side of column 6 of the electric wire cable from first magnetic core unit to third magnetic core unit penetrates, then from adjacent later three
The other side of magnetic core unit penetrates, and alternately penetrates supply lines using adjacent three magnetic core units as the both sides of period, column 6 later
Cable, after extending to the corresponding side of n-th of magnetic core unit, the return since the other side of the column 6 of n-th of magnetic core unit,
Power cable is with the symmetrical mode of backhaul using winding when return, passes through standing from first magnetic core unit after n magnetic core unit
The other side of column 6 is pierced by, and completes the coiling of one circle power cable of A phases；
It repeats the above process, completes the coiling of N circle A phase power cables, wherein the number of turns N is determined by the power of wireless power transmission
Fixed, N is positive integer；
B phase power cables carry out cross winding process be：Along direction of traffic, from the off, B phases power cable is from
After the side of one magnetic core unit to the column 6 of second magnetic core unit penetrates, then from three adjacent later magnetic core units
The other side penetrates, and alternately penetrates power cable using adjacent three magnetic core units as the both sides of period, column 6 later, extends always
To after n-th of magnetic core unit corresponding side, the return since the other side of the column 6 of n-th of magnetic core unit, power cable when return
It is wound using with the symmetrical mode of backhaul, the other side of the column 6 after n magnetic core unit from first magnetic core unit is worn
Go out, completes the coiling of one circle power cable of B phases；
It repeats the above process, completes the coiling of N circle B phase power cables；
C phase power cables carry out cross winding process be：Along direction of traffic, from the off, C phases power cable is from
After the side of the column 6 of one magnetic core unit penetrates, then penetrate from the other side of three adjacent later magnetic core units, later with
Adjacent three magnetic core units be the period, column 6 both sides alternately penetrate power cable, extend to n-th magnetic core unit
After corresponding side, the return since the other side of the column 6 of n-th of magnetic core unit, power cable uses symmetrical with backhaul when return
Mode wind, the other side of the column 6 after n magnetic core unit from first magnetic core unit is pierced by, and is completed one circle of C phases and is supplied
The coiling of electric wire cable；
It repeats the above process, completes the coiling of N circle C phase power cables；
The terminals of three phase supply cable in starting point are linked together, realize star-like connection.
Preferably,
The process of A phases power cable carry out sequence winding is：
Along direction of traffic, from the off, A phase power cables are pressed winds first to third magnetic clockwise or counterclockwise
After the 6 total N circles of column of core unit, then negative direction winding after three adjacent magnetic core units 6 total N circles of column, later with phase
Adjacent three magnetic core units are period, alternating direction winding power cable, until it is wound into n-th of magnetic core unit, completion N circle A phases
The coiling of power cable；
The process of B phases power cable carry out sequence winding is：
Along direction of traffic, from the off, B phase power cables are by first to second magnetic of winding clockwise or counterclockwise
After the 6 total N circles of column of core unit, then negative direction winding after three adjacent magnetic core units 6 total N circles of column, later with phase
Adjacent three magnetic core units are that period, direction alternately winding power cable complete N circle B phases until being wound into n-th of magnetic core unit
The coiling of power cable；
The process of C phases power cable carry out sequence winding is：
Along direction of traffic, from the off, C phase power cables are by first magnetic core unit of winding clockwise or counterclockwise
After 6 total N circles of column, then negative direction winding after three adjacent magnetic core units 6 total N circles of column, later with adjacent three magnetic
Core unit is that period, direction alternately winding power cable complete N circle C phase power cables until being wound into n-th of magnetic core unit
Coiling；
It will link together in the terminals of the three phase supply cable of n-th of magnetic core unit tail portion, realize star-like connection.
Preferably, three phase supply cable is wound at the different height of column 6, and between three phase supply cable each other
It does not intersect.
Preferably, the electric energy reception device includes receiving coil 9 and receiving terminal magnetic core 10；Receiving terminal magnetic core 10 is laid with
In the top of receiving coil 9, receiving coil 9 generates voltage by electromagnetic induction principle and powers to the load, and realizes the wireless of electric energy
Transmission.
Preferably, the receiving coil 9 is composed in series by two square coils adjacent on same plane, square coil
Middle cable is LIZI lines；When work, current trend in two coils is on the contrary, the length of each square coil is less than 1/2 driving
Periodic distance.
Preferably, the receiving terminal magnetic core 10 includes M bar shaped magnetic core, and M bar shaped magnetic core is flat along 9 axis of receiving coil
Row power supply rail is symmetrically placed, and the magnetic line of force trend for guiding power supply rail to generate, M is positive integer.
Preferably, the three phase supply cable connects A, B, C phase of three phase mains respectively, and the current amplitude flowed through is equal,
Phase differs 120 °.
Above-mentioned technical characteristic may be combined in various suitable ways or be substituted by equivalent technical characteristic, as long as can reach
To the purpose of the present invention.
The beneficial effects of the present invention are excite travelling-magnetic-field after being passed through electric current in three phase supply cable, connect in space
Take-up circle generates voltage by electromagnetic induction principle and powers to the load, and realizes the wireless transmission of electric energy；By in magnetic coupling
The constraint of power supply rail magnetic core and receiving terminal magnetic core to the magnetic line of force makes the magnetic line of force largely pass through receiving coil, to reduce
The coefficient of coup between transmitting, receiving coil is improved while electromagnetic radiation；And it is compared to the arteries and veins of single phase power supply cable generation
Shake magnetic field, and the travelling-magnetic-field that three phase supply cable generates largely reduces the wave of output power in dynamic charging process
It is dynamic；
Compared with prior art compared with the present invention has the following advantages：
1. output power is without fluctuation in vehicle dynamic charging process；
2. the magnetic field that power supply rail is generated in vehicle both sides is cancelled out each other, leakage field leakage is small, and Electro Magnetic Compatibility is good；
3. three phase supply cable shares a set of power supply rail magnetic core, magnetic core utilization rate is high, and is not easy to be saturated, and reduces into
This；
4. power supply rail is extremely narrow, the cost needed for power supply rail is saved, while reducing difficulty of construction；
5. compared with current other dynamic radios are for electromagnetic coupling mechanisms, transmission range is farther, sidesway ability is stronger.
Description of the drawings
Fig. 1 is the structural schematic diagram of power supply rail in the specific embodiment of the invention；
Fig. 2 is the structural schematic diagram of the A phases power cable 1 and power supply rail magnetic core in the specific embodiment of the invention；
Fig. 3 is the vertical view of Fig. 2；
Fig. 4 is the structural schematic diagram of the B phases power cable 2 and power supply rail magnetic core in the specific embodiment of the invention；
Fig. 5 is the vertical view of Fig. 4；
Fig. 6 is the structural schematic diagram of the C phases power cable 3 and power supply rail magnetic core in the specific embodiment of the invention；
Fig. 7 is the vertical view of Fig. 6；
Fig. 8 is the structural schematic diagram of the three phase supply cable and power supply rail magnetic core in the specific embodiment of the invention；
Fig. 9 is the vertical view of Fig. 8；
Figure 10 is the structural schematic diagram of the receiving coil of electric energy reception device in the specific embodiment of the invention；
Figure 11 is the structural schematic diagram of electric energy reception device in the specific embodiment of the invention；
Figure 12 is the three-phase type magnetic coupling for being applied to the power supply of vehicle dynamic radio in the specific embodiment of the invention
Structural schematic diagram；
Figure 13 is the side view of Figure 12；
Figure 14 is transmitting in vehicle dynamic radio power supply process, between receiving coil mutual inductance with displacement change curve；
Figure 15 equivalent magnetic pole distribution maps when being A phase 1 independent roles of power cable；
Figure 16 equivalent magnetic pole distribution maps when being B phase 2 independent roles of power cable；
Figure 17 equivalent magnetic pole distribution maps when being C phase 3 independent roles of power cable.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
Illustrate that present embodiment, present embodiment are applied to the three-phase type of vehicle dynamic radio power supply in conjunction with Fig. 1 to Figure 17
Magnetic coupling includes power supply rail and electric energy reception device for emitting electric energy；
Power supply rail is three phase supply track, is mounted below the road of vehicle traveling direction；
Power supply rail includes three phase supply cable and power supply rail magnetic core 8, for constraining the magnetic line of force generated trend, wherein
Three phase supply cable winds are on power supply rail magnetic core 8；Three phase supply cable generates magnetic field after being powered and is passed to electric energy reception device
Transmission of electricity energy；The fit system of the three phase supply cable and power supply rail magnetic core 8 is that cross winding or sequence are wound, three phase supply
For cable other than differing 1/3 driving cycle distance in spatial position upper edge direction of traffic, remaining is identical；
Electric energy reception device is mounted on vehicle chassis, and generating voltage by electromagnetic induction principle powers to the load, and realizes
The wireless transmission of electric energy.
In preferred embodiment, power supply rail magnetic core 8 includes n magnetic core unit, and n magnetic core unit is connected to along direction of traffic
Together, as shown in Figure 1, each magnetic core unit includes bottom connection magnetic core 5, column 6 and pole shoe 7, wherein n is positive integer, and is 3
Multiple；
The bottom of column 6 is fixed on bottom connection magnetic core 5, and pole shoe 7 is fixed on the top of column 6, each magnetic core unit
Cross section and longitudinal section be in " I " fonts.
The three phase supply cable of present embodiment is LIZI lines, is denoted as A phases service cable, B phases service cable, C respectively
Phase service cable；The specifications parameter of three-phase cable is identical, and number of share of stock and line footpath are depending on current amplitude and frequency；Three-phase cable is distinguished
It is passed through that amplitude is equal, phase differs 120 ° of cosine currents；
In preferred embodiment, driving cycle distance is after adjacent six magnetic core units are closely joined together, along driving side
Upward length.
In preferred embodiment, the process that A phases power cable 1 carries out cross winding is：Along direction of traffic, from the off, A
After the side of column 6 of the phase power cable 1 from first magnetic core unit to third magnetic core unit penetrates, then it is adjacent from later
The other side of three magnetic core units penetrates, and alternately penetrates power supply using adjacent three magnetic core units as the both sides of period, column 6 later
Cable after extending to the corresponding side of n-th of magnetic core unit, is returned since the other side of the column 6 of n-th of magnetic core unit
Journey, power cable is passed through after n magnetic core unit using being wound with the symmetrical mode of backhaul from first magnetic core unit when return
The other side of column 6 is pierced by, and completes the coiling of one circle power cable of A phases；
Repeat the above process, complete the coiling of N circle A phases power cable 1, wherein the number of turns N by wireless power transmission power
It determines, N is positive integer；
B phases power cable 2 carry out cross winding process be：Along direction of traffic, from the off, B phases power cable 1 from
After the side of first magnetic core unit to the column 6 of second magnetic core unit penetrates, then from three adjacent later magnetic core units
The other side penetrate, later using adjacent three magnetic core units as period, column 6 both sides alternately penetrate power cable, prolong always
After reaching n-th of magnetic core unit corresponding side, the return since the other side of the column 6 of n-th of magnetic core unit, supply lines when return
Cable using being wound with the symmetrical mode of backhaul, wear by the other side of the column 6 after n magnetic core unit from first magnetic core unit
Go out, completes the coiling of one circle power cable of B phases；
It repeats the above process, completes the coiling of N circle B phases power cable 2；
C phases power cable 3 carry out cross winding process be：Along direction of traffic, from the off, C phases power cable 3 from
It after the side of the column 6 of first magnetic core unit penetrates, then penetrates from the other side of three adjacent later magnetic core units, later
Power cable alternately is penetrated using adjacent three magnetic core units as the both sides of period, column 6, extends to n-th of magnetic core unit
Corresponding side after, the return since the other side of the column 6 of n-th of magnetic core unit, power cable uses and backhaul pair when return
The mode of title is wound, and the other side of the column 6 after n magnetic core unit from first magnetic core unit is pierced by, and completes one circle of C phases
The coiling of power cable；
It repeats the above process, completes the coiling of N circle C phases power cable 3；
The terminals of three phase supply cable in starting point are linked together, realize star-like connection.
By taking A phases power cable 1 as an example, as shown in Figures 2 and 3, A phases power cable 1 is close to the vertical of first magnetic core unit
6 right side (or left side) of column penetrates, along direction of traffic horizontal wiring, standing from magnetic core unit when extending to the 4th magnetic core unit
6 left side (right side) of column is pierced by, and is re-extended later to 6 right side (left side) of column of the 7th magnetic core unit and is penetrated, from the tenth
6 left side (right side) of column of magnetic core unit is pierced by ... A phases power cable 1 and is penetrated from 6 side of column of adjacent three magnetic core units
Afterwards, it is pierced by from the other side of three adjacent later magnetic core units, after extending to the corresponding side of n-th of magnetic core unit, from
The other side of the unit column 6 starts return, and A phases power cable 1, which is adopted, when return continues to be close in a like fashion column 6 and prolong
It stretches, is pierced by from 6 left side (or right side) of the column of first magnetic core unit around after n magnetic core unit, completes a circle power cable 1
Coiling, repeat the above process, you can complete the coiling of N circles power cable 1, wherein the number of turns N by wireless power transmission power
It determines, wherein N is positive integer；
B phases cable 2 and C phases cable 3 with the fit system of power supply rail magnetic core 8 compared with A phases cable 1, in addition in space
Upper edge direction of traffic differsOutside, remaining is identical, wherein l is expressed as a driving cycle distance, i.e. three phase supply cable
1/3 driving cycle distance spatially is differed along direction of traffic, as shown in Fig. 4 to 7.
After above-mentioned canoe, three phase supply cable and power supply rail core structure schematic diagram such as Fig. 8 and Fig. 9 institutes
Show.
In preferred embodiment, the process of 1 carry out sequence winding of A phases power cable is：
Along direction of traffic, from the off, A phase power cables are pressed winds first to third magnetic clockwise or counterclockwise
After the 6 total N circles of column of core unit, then negative direction winding after three adjacent magnetic core units 6 total N circles of column, later with phase
Adjacent three magnetic core units are period, alternating direction winding power cable, until it is wound into n-th of magnetic core unit, completion N circle A phases
The coiling of power cable 1；
The process of 2 carry out sequence winding of B phases power cable is：
Along direction of traffic, from the off, B phase power cables are by first to second magnetic of winding clockwise or counterclockwise
After the 6 total N circles of column of core unit, then negative direction winding after three adjacent magnetic core units 6 total N circles of column, later with phase
Adjacent three magnetic core units are that period, direction alternately winding power cable complete N circle B phases until being wound into n-th of magnetic core unit
The coiling of power cable 2；
The process of 3 carry out sequence winding of C phases power cable is：
Along direction of traffic, from the off, C phase power cables are by first magnetic core unit of winding clockwise or counterclockwise
After 6 total N circles of column, then negative direction winding after three adjacent magnetic core units 6 total N circles of column, later with adjacent three magnetic
Core unit is that period, direction alternately winding power cable complete N circle C phases power cable 3 until being wound into n-th of magnetic core unit
Coiling；
It will link together in the terminals of the three phase supply cable of n-th of magnetic core unit tail portion, realize star-like connection.
By taking A phases power cable 1 as an example, from the off, each magnetic core unit in power supply rail magnetic core 8 is divided along direction of traffic
Bian Hao not be No. 1, No. 2, No. 3 ... n magnetic core units, power cable 1 presses 1st, 2, No. 3 magnetic of (counterclockwise) horizontal wrap clockwise
After the 6 total N circles of column of core unit, then the 6 total N circles of column of the 4th, 5, No. 6 magnetic core unit of winding (clockwise), then up time counterclockwise
Needle winds the 6 total N circles ... of column of the 7th, 8, No. 9 magnetic core unit until being wound into No. n-th magnetic core unit；B phases cable 2 and C
Phase cable 3 with the fit system of power supply rail magnetic core 8 compared with A phases cable 1, in addition to spatially along direction of traffic differOutside,
Remaining is identical；No. n-th magnetic core unit tail portion, the three phase supply cable being completely wound is linked together, i.e., star connects
It connects；Significantly, since three phase supply cable spatially differsA certain phase or certain two-phase power cable can be caused to exist
In winding process, the one group of magnetic core unit finally wound only winds remaining magnetic core unit at this time less than 3；
For above two canoe, the different positions of in-orbit 8 central post 6 of road magnetic core of the close coiling of three phase supply cable
Place is set, and is not intersected each other between three phase supply cable；
As shown in Figure 10 and Figure 11, electric energy reception device includes receiving coil 9 and receiving terminal magnetic core 10 in present embodiment；
Receiving terminal magnetic core 10 is laid on the top of receiving coil 9, and receiving coil 9 generates voltage by electromagnetic induction principle and supplied to load
Electricity realizes the wireless transmission of electric energy.
The receiving coil 9 of present embodiment is composed in series by two square coils adjacent on same plane, two rectangles
Coil around to opposite (clockwise or counterclockwise), each square coil includes multiturn, and the length of each square coil is less thanWherein coil width and the number of turns by wireless power transmission power decision；When normal work, current trend in two coils
On the contrary (clockwise or counterclockwise)；
Cable is LIZI lines in receiving coil 9 in present embodiment；
Receiving terminal magnetic core 10 is laid on 9 top of receiving coil in present embodiment, and receiving terminal magnetic core 10 includes M bar shaped magnetic
Core, M bar shaped magnetic core is symmetrically placed along the parallel power supply rail of 9 axis of receiving coil, the magnetic force for guiding power supply rail to generate
Line moves towards, and M is positive integer.
As shown in Figure 12 and Figure 13, electric energy reception device is located at the surface of power supply rail, is moved together with vehicle；
The operation principle of three-phase type magnetic coupling proposed by the present invention applied to the power supply of vehicle dynamic radio is as follows：
Three phase supply cable is passed through that amplitude is identical, and phase differs 120 ° of cosine currents, along direction of traffic be respectively formed as
Pole span shown in Figure 15 to Figure 17 is the equivalent magnetic pole of dp；L is expressed as a driving cycle distance, and meets：L=2dp；Three
Phase power cable spatially differsCoiling, therefore the equivalent magnetic pole formed after being powered spatially also differsMake three phase supply
Mutual inductance between cable and receiving coil meets curve shown in Figure 14 with vehicle traveling, i.e.,：
M in formulaA-Pu、MB-Pu、MC-PuIndicate that the mutual inductance between three phase supply cable and receiving coil, x indicate vehicle along row respectively
Into the distance of direction running, l indicates driving cycle distance；
According to electromagnetic induction principle, the induced voltage generated in receiving coil is：
Wherein ω indicates that the angular frequency of electric current, I indicate the amplitude of electric current；
Since the speed of travelling-magnetic-field is much larger than running speed, it is believed that induced voltage is the cosine electricity of constant amplitude
Pressure, therefore output power is constant in vehicle dynamic charging process.Although describing this herein with reference to specific embodiment
Invention, it should be understood that, these embodiments are only the example of principles and applications.It should be understood that
It is many modifications can be carried out to exemplary embodiment, and can be designed that other arrangements, without departing from appended power
The spirit and scope of the present invention defined by profit requirement.It should be understood that can be retouched by being different from original claim
The mode stated combines different dependent claims and feature described herein.It will also be appreciated that combining individually real
Applying feature described in example can use in other embodiments.
Claims (10)
1. a kind of three-phase type magnetic coupling applied to the power supply of vehicle dynamic radio, which is characterized in that the three-phase type magnetic coupling
It includes the power supply rail and electric energy reception device for emitting electric energy to close mechanism；
The power supply rail is mounted below the road of vehicle traveling direction；The power supply rail includes three phase supply cable and confession
Electric rail magnetic core, for constraining the magnetic line of force generated trend, wherein three phase supply cable winds are on power supply rail magnetic core, three-phase
Power cable generates magnetic field after being powered and transmits electric energy to electric energy reception device；The three phase supply cable and power supply rail magnetic core
Fit system is that cross winding or sequence are wound, and three phase supply cable in spatial position upper edge direction of traffic in addition to differing 1/3
Driving cycle distance is outer, remaining is identical；
The electric energy reception device is mounted on vehicle chassis, and generating voltage by electromagnetic induction principle powers to the load, and realizes
The wireless transmission of electric energy.
2. the three-phase type magnetic coupling according to claim 1 applied to the power supply of vehicle dynamic radio, which is characterized in that
The power supply rail magnetic core includes n magnetic core unit, and n magnetic core unit links together along direction of traffic, each magnetic core unit
Including bottom connection magnetic core, column and pole shoe, wherein n is positive integer, and is 3 multiple；
The bottom of column is fixed on bottom connection magnetic core, and pole shoe is fixed on the top of column, the cross section of each magnetic core unit
It is in " I " fonts with longitudinal section.
3. the three-phase type magnetic coupling according to claim 2 applied to the power supply of vehicle dynamic radio, which is characterized in that
The driving cycle distance is the length on direction of traffic after adjacent six magnetic core units are closely joined together.
4. the three-phase type magnetic coupling according to claim 3 applied to the power supply of vehicle dynamic radio, which is characterized in that
A phase power cables carry out cross winding process be：Along direction of traffic, from the off, A phases power cable is from first
After the side of magnetic core unit to the column of third magnetic core unit penetrates, then from the other side of three adjacent later magnetic core units
It penetrates, alternately penetrates power cable using adjacent three magnetic core units as the both sides of period, column later, extend to n-th
After the corresponding side of magnetic core unit, the return since the other side of the column of n-th of magnetic core unit, when return power cable use with
The symmetrical mode of backhaul is wound, and is pierced by from the other side of the column of first magnetic core unit after n magnetic core unit, and A is completed
The coiling of one circle power cable of phase；
It repeats the above process, completes the coiling of N circle A phase power cables, wherein the number of turns N is by the power decision of wireless power transmission, N
For positive integer；
B phase power cables carry out cross winding process be：Along direction of traffic, from the off, B phases power cable is from first
After the side of magnetic core unit to the column of second magnetic core unit penetrates, then from the other side of three adjacent later magnetic core units
It penetrates, alternately penetrates power cable using adjacent three magnetic core units as the both sides of period, column later, extend to n-th
After magnetic core unit corresponding side, the return since the other side of the column of n-th of magnetic core unit, power cable is used and is gone when return
The symmetrical mode of journey is wound, and is pierced by from the other side of the column of first magnetic core unit after n magnetic core unit, and B phases are completed
The coiling of one circle power cable；
It repeats the above process, completes the coiling of N circle B phase power cables；
C phase power cables carry out cross winding process be：Along direction of traffic, from the off, C phases power cable is from first
It after the side of the column of magnetic core unit penetrates, then penetrates from the other side of three adjacent later magnetic core units, later with adjacent
Three magnetic core units are the period, the both sides of column alternately penetrate power cable, extend to the corresponding side of n-th of magnetic core unit
Afterwards, the return since the other side of the column of n-th of magnetic core unit, power cable with the symmetrical mode of backhaul using twining when return
Around, it is pierced by from the other side of the column of first magnetic core unit after n magnetic core unit, one circle power cable of completion C phases
Coiling；
It repeats the above process, completes the coiling of N circle C phase power cables；
The terminals of three phase supply cable in starting point are linked together, realize star-like connection.
5. the three-phase type magnetic coupling according to claim 3 applied to the power supply of vehicle dynamic radio, which is characterized in that
The process of A phases power cable carry out sequence winding is：
Along direction of traffic, from the off, A phase power cables are pressed winds first to third magnetic core list clockwise or counterclockwise
Member the total N circles of column after, then negative direction wind after three adjacent magnetic core units the total N circles of column, later with adjacent three
Magnetic core unit is period, alternating direction winding power cable, until it is wound into n-th of magnetic core unit, completion N circle A phase supply lines
The coiling of cable；
The process of B phases power cable carry out sequence winding is：
Along direction of traffic, from the off, B phase power cables are by first to second magnetic core list of winding clockwise or counterclockwise
Member the total N circles of column after, then negative direction wind after three adjacent magnetic core units the total N circles of column, later with adjacent three
Magnetic core unit is that period, direction alternately winding power cable complete N circle B phase supply lines until being wound into n-th of magnetic core unit
The coiling of cable；
The process of C phases power cable carry out sequence winding is：
Along direction of traffic, from the off, C phase power cables are by the column for winding first magnetic core unit clockwise or counterclockwise
After total N circles, then negative direction winding after three adjacent magnetic core units the total N circles of column, later with adjacent three magnetic core units
For period, direction, alternately winding power cable completes the coiling of N circle C phase power cables until being wound into n-th of magnetic core unit；
It will link together in the terminals of the three phase supply cable of n-th of magnetic core unit tail portion, realize star-like connection.
6. the three-phase type magnetic coupling according to claim 4 or 5 applied to the power supply of vehicle dynamic radio, feature exists
In three phase supply cable is wound at the different height of column, and is not intersected each other between three phase supply cable.
7. the three-phase type magnetic coupling according to claim 6 applied to the power supply of vehicle dynamic radio, which is characterized in that
The electric energy reception device includes receiving coil and receiving terminal magnetic core；Receiving terminal magnetic core is laid on the top of receiving coil, receives
Coil generates voltage by electromagnetic induction principle and powers to the load, and realizes the wireless transmission of electric energy.
8. the three-phase type magnetic coupling according to claim 7 applied to the power supply of vehicle dynamic radio, which is characterized in that
The receiving coil is composed in series by two square coils adjacent on same plane, and cable is LIZI lines in square coil；Work
When making, current trend in two coils is on the contrary, the length of each square coil is less than 1/2 driving cycle distance.
9. the three-phase type magnetic coupling according to claim 8 applied to the power supply of vehicle dynamic radio, which is characterized in that
The receiving terminal magnetic core includes M bar shaped magnetic core, and M bar shaped magnetic core is symmetrically placed along the parallel power supply rail of receiving coil axis,
Magnetic line of force trend for guiding power supply rail to generate, M is positive integer.
10. the three-phase type magnetic coupling according to claim 1 applied to the power supply of vehicle dynamic radio, feature exists
In the three phase supply cable connects A, B, C phase of three phase mains respectively, and the current amplitude flowed through is equal, and phase differs 120 °.
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| CN109660032A (en) * | 2019-01-29 | 2019-04-19 | 哈尔滨工业大学 | A kind of three-phase magnetic field coupling-type radio energy reception magnetic coupling |
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| CN113892224A (en) * | 2019-05-27 | 2022-01-04 | 株式会社电装 | Power supply system during driving |
| CN111923752A (en) * | 2020-08-06 | 2020-11-13 | 金陵科技学院 | Design and implementation method of sectional type dynamic wireless charging system based on electric trolley |
| CN114268173A (en) * | 2020-09-16 | 2022-04-01 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Non-contact power supply system and rail transit train |
| CN113270948A (en) * | 2021-05-26 | 2021-08-17 | 重庆大学 | Dynamic wireless charging system for inhibiting power fluctuation and parameter design method thereof |
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