CN109435718A - Electric energy transmission system - Google Patents
Electric energy transmission system Download PDFInfo
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- CN109435718A CN109435718A CN201811553800.0A CN201811553800A CN109435718A CN 109435718 A CN109435718 A CN 109435718A CN 201811553800 A CN201811553800 A CN 201811553800A CN 109435718 A CN109435718 A CN 109435718A
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- Prior art keywords
- pole plate
- vehicle
- electric energy
- energy transmission
- reception
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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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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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
- Y02T90/14—Plug-in electric vehicles
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application provides a kind of electric energy transmission system, it include: the power supply and transmitting pole plate, the reception pole plate that vehicle bottom is set of setting on the ground, power converter apparatus on vehicle and electrical equipment are set, wherein, the reception pole plate is curved face type pole plate, and the curved surface radian of the reception pole plate is downward, and power supply is connect with transmitting pole plate, transmitting pole plate and reception pole plate form alternating magnetic field under the action of alternating current, and power converter apparatus is connect with reception pole plate and the electrical equipment.In the technical solution, the electric energy efficiency of transmission of electric energy transmission system is high, and electromagnetic radiation is small.
Description
Technical field
This application involves technical field of vehicle more particularly to a kind of electric energy transmission systems.
Background technique
At this stage, motor-car, locomotive or city railway vehicle are mostly to realize electric energy transmission by contact net and third rail, this
Indicate vehicle to run route how long will be laid with how long by Flow Line, while needing to build the bases such as matched electric pole
Facility not only occupies biggish city space, affects urban, and there are larger security risks.
Induction non-contact power supply can be used in the prior art, by laying power supply unit on ground along the line
Traction electric energy is provided for vehicle.Specifically, the induction system being arranged on ground detected vehicle by when power on, feel
The magnetic field for answering system interior loop to generate is converted into electric energy supply vehicle trailer system by the pantagraph current collector induction of vehicle bottom.Due to
Power supply zone on ground can change with the operation of vehicle, hereby it is ensured that along personnel and vehicle safety.
However, above-mentioned induction non-contact power supply needs electromagnetic field of high frequency, high power, high-frequency electric energy are passed
It is defeated to easily cause electromagnetic interference problem, it is affected to ambient enviroment.
Summary of the invention
The application provides a kind of electric energy transmission system, and to solve existing electric energy transmission mode, transmission efficiency is low, electromagnetic interference
The serious problem of problem.
A kind of electric energy transmission system provided by the present application, comprising: power supply on the ground is set and emits pole plate, set
The reception pole plate in vehicle bottom is set, the power converter apparatus on vehicle and electrical equipment are set, the reception pole plate is song
Face type pole plate, and the curved surface radian for receiving pole plate is downward；
The power supply is connect with the transmitting pole plate, and the transmitting pole plate and the pole plate that receives are in the work of alternating current
With lower formation alternating magnetic field, the power converter apparatus is connect with the reception pole plate and the electrical equipment.
In the present embodiment, by making the reception pole plate curved face type pole plate of setting, and the curved surface radian of the reception pole plate
Downward, can more broadly receive setting on the ground transmitting pole plate transmitting energy, not only increase transmitting pole plate and
The wireless power transmission efficiency between pole plate is received, while reducing high frequency magnetic field to a certain extent to external environment and vehicle arrangement
Electromagnetic interference, have the characteristics that efficiency of transmission is high, electromagnetic shielding characteristic is good, solve existing electric energy transmission mode efficiency of transmission
Problem low, electromagnetic interference problem is serious.
Optionally, in the embodiment of the application, the electric energy transmission system further include: be arranged on the vehicle
Drive apparatus；
The drive apparatus is connect with the reception pole plate, the drive apparatus for adjust the reception pole plate with it is described
The distance of vehicle bottom.
In the present embodiment, which connect with drive apparatus, and reception pole plate is made in the adjustment of drive apparatus in this way
It can change at a distance from vehicle bottom under, when so as under the various ambient conditions that vehicle operates normally, pass through tune
The whole height for receiving pole plate and ground, Lai Tigao energy transmission efficiency.
Optionally, in another embodiment of the application, the electric energy transmission system further include: be arranged at the vehicle bottom
Portion and the hinge type gauze screen for being located at the receiving pole board ends.
In the present embodiment, by setting hinge type gauze screen at the rear and front end of curved face type pole plate (vehicle heading)
(i.e. articulated flexible metal gauze screen) it is dry to the electromagnetism of external environment and vehicle arrangement can to reduce high frequency magnetic field in this way
It disturbs.
Optionally, in the another embodiment of the application, the reception pole plate is by having the metal oxide of ferrimagnetism
It encapsulates to be formed with wound coil.
It is encapsulated and is formed by having the metal oxide of ferrimagnetism and wound coil by receiving pole plate, transmitted in electric energy
When, it can be improved the ability of electric energy transmission system transmitting energy.
Optionally, in above-described embodiment of the application, the alternating current is high frequency, High Level AC Voltage.
It can reduce the equivalent impedance of coupling mechanism by being passed through high-frequency alternating current to transmitting pole plate, reduce electric energy transmission system
The loss of system can enhance the intensity of coupling alternating magnetic field by being passed through High Level AC Voltage to transmitting pole plate, promote transimission power,
Thus, high frequency, High Level AC Voltage can improve the performance of electric energy transmission system, improve the efficiency of transmission of electric energy transmission system.
Optionally, in the another embodiment of the application, the system also includes: the power supply on the inside of running track is set
Cable, the power cable are greater than or equal to 10 millimeters at a distance from the running track.
In the present embodiment, transmitting pole plate, the supply lines can be formed by the power cable on the inside of running track is arranged in
Cable is greater than or equal to 10 millimeters at a distance from running track, and the high frequency magnetic field that can be avoided generation generates whirlpool in rigid track
Stream guarantees vehicle safety operation.
Optionally, in above-described embodiment of the application, the power cable is arranged in a ring.
Power cable is arranged in a ring, can power cable is formed into a loop, and then guarantees transmitting pole plate and receiving pole
Plate incudes to form alternating magnetic field.
Optionally, in above-described embodiment of the application, the power cable is at interval of one compensation member of pre-determined distance connection
Part.
Optionally, the power cable connects a compensating element, at interval of pre-determined distance, comprising:
The power cable is at interval of one compensating electric capacity of pre-determined distance serial or parallel connection.
By connecting a compensating element, (for example, one compensating electric capacity of serial or parallel connection) at interval of pre-determined distance in power cable
It can make up for it the leakage inductance of power cable, improve active power and efficiency of transmission.
Optionally, in the another embodiment of the application, the power cable subsection setup has between every section of power cable
There are insulating regions.
Optionally, it is provided with signal reader in the insulating regions, is provided on the vehicle and the signal-obtaining
The signal receiver that device carries out wireless communication.
The signal reader that signal receiver on vehicle is arranged with insulating regions carries out wireless communication, and can make on vehicle
Control system according to the position of the signal accurate judgement high frequency magnetic field got, guarantee that train rests in the maximum high frequency of efficiency
Magnetic field overlay area.
Optionally, in the another embodiment of the application, the car body material of the vehicle is aluminum alloy material, the vehicle
Wheel material be intensity be greater than preset threshold resin.
Optionally, car body uses aluminum alloy material, and wheel uses high-intensity resin, i.e. intensity is greater than preset threshold, can
Electromagnetic interference and the high frequency magnetic field inductive loop on vehicle are avoided, and then guarantees that vehicle can be with normally travel.
Electric energy transmission system provided by the embodiments of the present application receives pole plate type in curved surface by making, can be more broadly
The energy for receiving the transmitting pole plate transmitting formed on ground by power cable, not only increases the efficiency of transmission of radio energy,
High frequency magnetic field can be reduced to a certain extent to the electromagnetic interference of external environment and vehicle arrangement, have efficiency of transmission high and good
Good electromagnetic shielding characteristic, solves the problems, such as that transmission efficiency is low, electromagnetic interference problem is serious for existing electric energy transmission mode.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electric energy transmission system embodiment one provided by the embodiments of the present application；
Fig. 2 is the difference schematic diagram that variform reception pole plate receives energy；
Fig. 3 is the structural schematic diagram of electric energy transmission system embodiment two provided by the embodiments of the present application.
Description of symbols:
11: power supply；12: transmitting pole plate；
13: receiving pole plate；14: power converter apparatus；
15: electrical equipment；16: energy-storage travelling wave tube；
10: hinge type gauze screen；21: curved face type receives pole plate；
22: rectangle receives pole plate；31: base station power device；
32: power transfer；33: vehicle-mounted driving device；
34: running track；35: power cable；
36: insulating regions；37: signal reader；
38: signal receiver.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
The transmission of contactless net high-power power refer to " pantograph+contact net " current collection mode of rail vehicle abandoning tradition and
Novel, beautiful, the safe power supply mode of one kind of use, has the characteristics that novel, green, environmentally friendly and occupies little space.Nothing connects
The research and realization of net-fault high-power power Transmission system and application technology provide for urban track traffic, trackless transportation vehicle
A kind of thinking of development of newest concept has great reality and strategic importance.
At this stage, the power supply system of rail vehicle can use ground induction coil non-contact power technology.The power supply system
System carries out transmitting non-contact electric energy in the way of magnetic field coupling, is laid with power supply unit by the ground along the line and provides traction for train
Electric energy specifically realizes energy transmission using the principle that electric energy and magnetic field mutually convert.When the sense that power supply unit includes on ground
Answer system detection to top have vehicle by when power on, the magnetic field that induction system interior loop generates is installed by train bottom
Shape is that the pantagraph current collector of rectangle incudes, and is converted into electric energy supply vehicle trailer system.
In the power supply system, it is equipped with direct current DC 750V power cable along route, and line side is every a distance
Bury a set of inverter；First siding ring is then laid among the rail of two, ground, and second siding ring is mounted on vehicle
On.When above inverter of the vehicle by ground, DC 750V inversion is first high-frequency alternating current, input by inverter
The first siding ring on ground, when the second siding ring on vehicle is overlapped with first siding ring position, second siding ring induction is produced
Raw high-frequency alternating current, powers after rectified and inversion for the alternating current generator of vehicle.Only when vehicle enters respective section, ground
First siding ring just powers on, other moment ground first siding rings are in off-position.Due to the inverter on ground
Subsection setup, thus, the power supply zone of the power supply system runs with vehicle and is changed, thus along ensureing personnel and vehicle peace
Entirely.
But there are following various problems for above-mentioned ground induction coil non-contact power technology: first, above-mentioned power supply technique
Also in experimental stage, the technology is used without city plan: second, a side line in above-mentioned power supply system, on ground
Second siding ring on circle and vehicle can generate electromagnetic field of high frequency under the action of high-frequency alternating current, the electromagnetic radiation generated
It has a certain impact to surrounding enviroment；Third, the high power of power supply system, high-frequency electromagnetic radiation or electromagnetic interference discharge can
It perhaps can include the pacemaker of passenger, be used on ground potentially to equipment under bogie, vehicle and neighbouring all electronic devices
The power cable etc. of power supply conversion has an impact, and then brings safety problem to vehicle control；Fourth, due to the side line of ground one time
The gap of second siding ring on circle and train is larger, and leakage field is larger in the electromagnetic field of high frequency of generation, causes the biography of power supply system
Defeated low efficiency.
In summary, not only transmission efficiency is low for existing induction contactlessly powered electric energy transmission mode, Er Qie electricity
Magnetic disturbance problem is serious.
In view of the above-mentioned problems, the embodiment of the present application provides a kind of electric energy transmission system, for solving above-mentioned electric energy transmission side
The problem that transmission efficiency is low for formula, electromagnetic interference problem is serious.In the following, being carried out by technical solution of the specific embodiment to the application
It is described in detail.
It should be noted that these specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.
Fig. 1 is the structural schematic diagram of electric energy transmission system embodiment one provided by the embodiments of the present application.As shown in Figure 1, this
The electric energy transmission system that embodiment provides may include: that the power supply 11 of setting on the ground exists with transmitting pole plate 12, setting
Reception pole plate 13, power converter apparatus 14 and electrical equipment 15 on vehicle, wherein the reception pole plate 13 is curved face type pole plate,
And the curved surface radian of the reception pole plate 13 is downward.
Optionally, above-mentioned power supply 11 is connect with transmitting pole plate 12, which is exchanging with pole plate 13 is received
Alternating magnetic field is formed under the action of electricity, above-mentioned power converter apparatus 14 is connect with reception pole plate 13, electrical equipment 15.
Optionally, in the present embodiment, shown in referring to Fig.1, power supply 11 is when vehicle is by above transmitting pole plate 12
Just it is passed through alternating current to the power cable for forming transmitting pole plate 12, thus, transmitting pole plate 12 and reception pole plate 13 are in the alternating current
Under the action of can form alternating magnetic field, above-mentioned reception pole plate 13 can receive transmitting pole plate 12 and be transmitted by the alternating magnetic field
Alternating current, above-mentioned power converter apparatus 14, which is located at, to be received between pole plate 13 and electrical equipment 15, can will be received pole plate 13 and be connect
The alternating current received is supplied to electrical equipment 15 after carrying out power converter.
As an example, above-mentioned transmitting pole plate 12 is made of the coil for being embedded in ground, and above-mentioned reception pole plate 13 is specific
It is installed in the lower section of vehicle, and type in curved surface is arranged, curved surface radian is downward.The transmitting pole plate 12 and reception pole plate 13 are
Capacitor plate when being passed through alternating current in emitting pole plate 12, by transmitting pole plate 12 and receives the interaction magnetic generated between pole plate 13
Realize the wireless transmission of energy in field.
Optionally, in the present embodiment, it is actually by direct current that power supply 11, which is supplied to the alternating current of transmitting pole plate 12,
What electricity was obtained by inversion.Optionally, which can be what electric main was obtained through over commutation, be also possible to DC power supply
Directly provide.
Illustratively, in the present embodiment, electric energy transmission system further include: drive apparatus on vehicle is set (not
It shows).
Wherein, which connect with above-mentioned reception pole plate 13, which receives pole plate 13 and vehicle for adjusting
The distance of bottom.
In the present embodiment, which connect with drive apparatus, and reception pole plate is made in the adjustment of drive apparatus in this way
It can change at a distance from vehicle bottom under, when so as under the various ambient conditions that vehicle operates normally, pass through tune
The whole height for receiving pole plate and ground, Lai Tigao energy transmission efficiency.
Illustratively, as shown in Figure 1, in the present embodiment, the electric energy transmission system further include: setting in vehicle bottom and
Positioned at the hinge type gauze screen 10 for receiving 13 both ends of pole plate.
In the present embodiment, by setting hinge type gauze screen at the rear and front end of curved face type pole plate (vehicle heading)
(i.e. articulated flexible metal gauze screen) it is dry to the electromagnetism of external environment and vehicle arrangement can to reduce high frequency magnetic field in this way
It disturbs.
Optionally, which can be the hinge type flexible shielding net being compiled by copper wire, can be into
One step shields high-frequency electromagnetic interference, at low cost.
It is worth noting that the type in curved surface of reception pole plate 13 in the present embodiment, can more broadly receive on ground
The energy that the transmitting pole plate 12 formed by power cable emits, not only increases the efficiency of transmission of radio energy, can also be one
Determine to reduce high frequency magnetic field in degree to the electromagnetic interference of external environment and vehicle arrangement, has efficiency of transmission high and electromagnetic shielding spy
The good feature of property, solves the problems, such as that transmission efficiency is low, electromagnetic interference problem is serious for existing electric energy transmission mode.
For example, Fig. 2 is the difference schematic diagram that variform reception pole plate receives energy.With isometric in the present embodiment
The curved face type of degree, width and height receives pole plate 21 and rectangle receives pole plate 22 and is illustrated.As shown in Fig. 2, when curved face type connects
When receipts pole plate 21 and rectangle reception pole plate 22 are arranged under vehicle, the receiving efficiency that rectangle receives pole plate 22 is not only low, but also
Not by rectangle receive the received frequency electromagnetic waves of pole plate 22 can be propagated in the form of radiation by the both ends of pole plate, to turn
Equipment and ambient enviroment cause electromagnetic interference under to frame, vehicle, endanger very big.And curved face type receives pole plate 21 in equal length, same
Etc. in the case where mounting heights, curved face type, which receives pole plate 21 and can receive rectangle, receives what 13 rear and front end of pole plate did not received
Electromagnetic wave, so as to absorb more energy, the area of covering is wider, reduces the radiation scope to other equipment, in turn
It reduces to equipment under bogie, vehicle and the electromagnetic interference of ambient enviroment, there is efficiency of transmission height and good electromagnetic shielding is special
Property.
In addition, curved face type receives the curved surface radian of pole plate 21 downward, such curved face type receives pole plate 21 in addition to central area
Other regions with transmitting pole plate 12 at a distance from become smaller, correspondingly, reducing leakage field, improve energy transmission efficiency.
Further, receive pole plate 13 under the control action of drive apparatus, can liftable the bottom of vehicle is set,
Liftable mode can adjust the distance for receiving pole plate apart from vehicle bottom (that is, ground), mention according to the running environment of vehicle
High energy transmission efficiency.
In conclusion the design of liftable, curving reception pole plate and hinge type flexible metal gauze screen, so that this reality
Applying the contactless rail vehicle in example has efficiency of transmission height and good electromagnetic shielding characteristic.
Optionally, on the basis of above-mentioned embodiment illustrated in fig. 1, Fig. 3 is electric energy provided by the embodiments of the present application transmission system
The structural schematic diagram for embodiment two of uniting.As shown in figure 3, the electric energy transmission system can be divided into base station electricity in application embodiment
33 three parts of source device 31, power transfer 32 and vehicle-mounted driving device.Wherein, base station power device 31 is arranged on ground
It may include power supply type converter, rectifier (not shown), base station high-frequency inverter (not shown), power supply class on face
The components such as code converter (not shown).The base station power device 31 be mainly used for by power supply type converter, rectifier,
Base station high-frequency inverter etc. handles the electric energy got, is transformed into the alternating current of high-frequency and high-voltage, passes through power supply 11
Supply transmitting pole plate 12.Power transfer 32 in addition to include above-mentioned transmitting pole plate 12, receive pole plate 13 other than, can also include
Power compensation capacitor (not shown) and detachable Transformer (not shown), the power transfer 32 mainly serve for ensuring electric energy biography
The efficiency of transmission of defeated device.Vehicle-mounted driving device 33 is other than including above-mentioned power converter apparatus 14 and electrical equipment 15, also
It may include energy-storage travelling wave tube 16.In the present embodiment, power converter apparatus 14 can be vehicle-mounted current transformer, and electrical equipment 15 can
To be driving motor etc..
Optionally, in above-described embodiment of the application, receive pole plate 13 by have the metal oxide of ferrimagnetism and
Wound coil encapsulates to be formed.
Since the resistivity ratio elemental metals or alloy magnetic material of the metal oxide of ferrimagnetism are big, and dielectricity
Can be high, the reception pole plate 13 formed is encapsulated under high frequency environment by having the metal oxide of ferrimagnetism and wound coil in this way
Magnetic conductivity is high.Since ferrite is a kind of metal oxide with ferrimagnetism, for electrical characteristics, ferritic resistivity ratio
Elemental metals or alloy magnetic material are much bigger, and there are also higher dielectric properties, for magnetic property, ferritic magnetic property
Show magnetic conductivity with higher when high frequency.Thus, ferrite has become the widely used nonmetallic magnetic in high frequency light current field
Property material.So adding ferrite in receiving pole plate 13, the ability of electric energy transmission system transmitting energy can be improved.It is optional
, as an example, the reception pole plate 13 in the present embodiment can be encapsulated by magnetic core ferrite and wound coil.
Thus, it is encapsulated and is formed by having the metal oxide of ferrimagnetism and wound coil by receiving pole plate, in electric energy
When transmission, the ability of electric energy transmission system transmitting energy can be improved.
It can be seen from the above, transmitting pole plate 12 and reception pole plate 13 form alternating magnetic field under the action of alternating current, optionally,
In embodiments herein, transmitting pole plate 12 and the alternating current for receiving the formation alternating magnetic field of pole plate 13 are high frequency, high-voltage alternating
Electricity.
In electric energy transmission system provided in this embodiment, in order to improve the electric energy transimission power of electrical energy system, then need
High Level AC Voltage is passed on the transmitting pole plate 12 in alternating magnetic field coupling energy transmission mechanism, enhances coupling by improving voltage
The intensity of alternating magnetic field is closed, transimission power is promoted.Meanwhile in order to improve the electric energy efficiency of transmission of electric energy transmission system, reduce device
The volume of part improves power density, needs to pass to high frequency on the transmitting pole plate 12 in alternating magnetic field coupling energy transmission mechanism
Alternating current reduces the equivalent impedance of coupling mechanism by high frequency, reduces the loss of electric energy transmission system, so as to improve electric energy biography
The performance of defeated system improves the efficiency of transmission of electric energy transmission system.Thus, in the electric energy transmission system that magnetic field coupling type is wireless
In, logical high frequency, High Level AC Voltage are needed in the transmitting pole plate 12 of coupling mechanism.High frequency, High Level AC Voltage can improve electric energy biography
The performance of defeated system improves the efficiency of transmission of electric energy transmission system.
Optionally, in embodiments herein, referring to shown in Fig. 3, which can also include: that setting exists
The power cable 35 of 34 inside of running track, the power cable 35 are greater than or equal to 10 millimeters at a distance from running track 34.
Optionally, which can be applied to low-floor light rail vehicle power supply system.It in the specific implementation, can be with
A light railways are built along the route of urban public transport, rail level height is flushed with ground, and power supply base station apparatus is mounted on
The devices such as control unit and control switch are installed in the cabinet of both sides of the road, in cabinet.Optionally, line footpath is flat equal to 125mm
The power cable of side is embedded into advance on the inside of running track.
It is worth noting that in practical applications, realized since running track 34 is general by rigid track, thus, it is
Avoid the high frequency magnetic field generated from generating vortex in rigid track, distance of the power cable apart from running track need to be greater than or
Equal to 10 millimeters.
Optionally, in the present embodiment, above-mentioned power cable 35 is arranged in a ring.
Since power cable 35 will form a circuit, thus power cable 35 wants pre-buried at ring-like, be conducive in this way by
The transmitting pole plate 12 and reception pole plate 13 that power cable 35 is formed establish alternating magnetic field.
Optionally, in the above-described embodiments, above-mentioned power cable 35 connects a compensating element, at interval of pre-determined distance.
In one possible implementation, a compensating element, is connected at interval of pre-determined distance between power cable, comprising:
Power cable is at interval of one compensating electric capacity of pre-determined distance serial or parallel connection.
Optionally, power cable connects a compensating element, (for example, serial or parallel connection one compensates electricity at interval of pre-determined distance
Hold) it can make up for it the leakage inductance of power cable, improve active power and efficiency of transmission.
Optionally, in above-described embodiment of the application, as shown in figure 3,35 subsection setup of above-mentioned power cable, every section of confession
There are insulating regions 36 between electric wire cable.
In the present embodiment, it is provided with signal reader 37 in above-mentioned insulating regions 36, is provided on vehicle and the signal
The signal receiver 38 that reader 37 carries out wireless communication.
In practical applications, the specific length of power cable 35 is depending on the length of vehicle, i.e., vehicle is transported right above it
When row, guarantee the transmitting pole plate 12 and receive all vehicles of alternating magnetic field that pole plate 13 is established that it is formed, and it is few as far as possible
The boundary beyond vehicle, as far as possible reduce surrounding vehicles or pedestrian are had an impact.Therefore, the length of power cable 35 was not easy
It is long, it is equipped with insulating regions 36 between every section of power cable 35 of laying, is embedded with signal reader 37 in insulating regions 36, works as vehicle
When driving to the insulating regions 36, the position signal of vehicle can be transmitted near base station power device 31 in control list
Member so that the control unit of base station power device 31 can judge the position of vehicle according to the signal received, while giving vehicle
The section power cable power supply travelled, establishes high frequency magnetic field.
Optionally, the power supply mode of power cable is constant current, and current value is not less than 150A, and it can be according to vehicle load
Size be adjusted.
Optionally, vehicle itself is equipped with signal receiver 38, the signal receiver 38 can in above-mentioned insulating regions 36
The signal reader 37 of setting carries out wireless communication, the control system on such vehicle can according to by with signal reader 37
The position for carrying out wireless communication the signal accurate judgement high frequency magnetic field got guarantees that train rests in the maximum high frequency magnetic of efficiency
Field overlay area.
Optionally, in embodiments herein, the car body material of above-mentioned vehicle is aluminum alloy material, the wheel of the vehicle
Material is the resin that intensity is greater than preset threshold.
In the present embodiment, in order to avoid electromagnetic interference and high frequency magnetic field, inductive loop, vehicle use good on vehicle
Shielding and safeguard measure, optionally, car body uses aluminum alloy material, and wheel uses high-intensity resin, i.e. intensity is greater than default
The resin of threshold value, to guarantee that vehicle can be with normally travel.
Since city railway vehicle in the prior art and trackless vehicle generally use contact net current collection mode at present, and portion
Point electronic public transportation vehicle in city is charged by pinpointing plug, both modes require to build occupied area very big
Infrastructure influences urban, exists simultaneously great security risk.
In view of the above-mentioned problems, electric energy transmission system provided by the embodiments of the present application is transmitted using contactless net high-power power
Mode simplifies charging modes, while saving charging plug, since the power cable of electric energy transmission system is embedded in underground, reliably
Property it is high, it is almost non-maintaining, save a large amount of human cost, every urban transportation route at least saved for 120 man months every year.This
Outside, which saves the communal facilitys such as electric pole, the contact net for building whole route.For example, according to one
20km route is calculated, and can at least save contact net 40km, and electric pole 400.Further, the electric energy transmission of the application
System saves the pantograph of vehicle and the equipment of high-pressure system, has prevented frictional dissipation, annual 20km kilometers of route, daily
Back and forth, annual operation 350 days such as 20 vehicles of the line configuring, then at least saves money 1,000,000 in 1 year for operation 20.Thus, this
Apply for that the electric energy transmission system in embodiment is high-efficient, 95% can be reached, and compares the car effect of common household gasoline driven
Rate is only 29%.
In conclusion the electric energy transmission system receives electrode plate structure especially suitable for urban public transport, using curved face type
Contactless net high-power power Transmission system, both have contactless electrical energy transmission system possessed by protect City Humanities scape
It sees, the low feature of cost input, and it is low and to extraneous electromagnetic interference problem, tool to solve contactless electrical energy transmission system effectiveness
Have a high practical application value, it is following by be city rail vehicle development trend.
It is worth noting that the curved face type in the embodiment of the present application, which receives pole plate, can also be connecing for other non-rectangular configurations
Pole plate is received, as long as the reception pole plate of the curved face type structure with certain radian belongs to the protection scope of the application, herein not
It repeats one by one again.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent
Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of electric energy transmission system, comprising: power supply on the ground is arranged and emits pole plate, vehicle bottom is arranged in
Pole plate is received, the power converter apparatus on vehicle and electrical equipment are set, which is characterized in that the reception pole plate is curved face type
Pole plate, and the curved surface radian for receiving pole plate is downward；
The power supply is connect with the transmitting pole plate, and the transmitting pole plate and the reception pole plate are under the action of alternating current
Alternating magnetic field is formed, the power converter apparatus is connect with the reception pole plate and the electrical equipment.
2. system according to claim 1, which is characterized in that the electric energy transmission system further include: be arranged in the vehicle
Drive apparatus on；
The drive apparatus is connect with the reception pole plate, and the drive apparatus is for adjusting the reception pole plate and the vehicle
The distance of bottom.
3. system according to claim 1 or 2, which is characterized in that the electric energy transmission system further include: be arranged described
Vehicle bottom and the hinge type gauze screen for being located at the receiving pole board ends.
4. system according to claim 3, which is characterized in that the reception pole plate is by having the oxidation of the metal of ferrimagnetism
Object and wound coil encapsulate to be formed.
5. system according to claim 1, which is characterized in that further include: the power cable on the inside of running track is set,
The power cable is greater than or equal to 10 millimeters at a distance from the running track.
6. system according to claim 5, which is characterized in that the power cable is arranged in a ring.
7. system according to claim 5 or 6, which is characterized in that the power cable is at interval of pre-determined distance connection one
Compensating element,.
8. system according to claim 5 or 6, which is characterized in that the power cable subsection setup, every section of power cable
Between have insulating regions.
9. system according to claim 8, which is characterized in that signal reader is provided in the insulating regions, it is described
The signal receiver carried out wireless communication with the signal reader is provided on vehicle.
10. system according to claim 1, which is characterized in that the car body material of the vehicle is aluminum alloy material, described
The wheel material of vehicle is the resin that intensity is greater than preset threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553800.0A CN109435718B (en) | 2018-12-19 | 2018-12-19 | Electric energy transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553800.0A CN109435718B (en) | 2018-12-19 | 2018-12-19 | Electric energy transmission system |
Publications (2)
| Publication Number | Publication Date |
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| CN109435718A true CN109435718A (en) | 2019-03-08 |
| CN109435718B CN109435718B (en) | 2021-03-16 |
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| CN201811553800.0A Active CN109435718B (en) | 2018-12-19 | 2018-12-19 | Electric energy transmission system |
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|---|---|
| CN109435718B (en) | 2021-03-16 |
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