CN105471122A - Wireless power supply system for straddle type monorail - Google Patents
Wireless power supply system for straddle type monorail Download PDFInfo
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- CN105471122A CN105471122A CN201511020605.8A CN201511020605A CN105471122A CN 105471122 A CN105471122 A CN 105471122A CN 201511020605 A CN201511020605 A CN 201511020605A CN 105471122 A CN105471122 A CN 105471122A
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Abstract
The invention discloses a wireless power supply system for a straddle type monorail. The wireless power supply system mainly comprises a power grid, a high frequency inversion apparatus, a bilateral distributed sectional type transmitting apparatus, a bilateral distributed sectional type receiving apparatus, a rectifying conversion apparatus and a locomotive load. A magnetic coupling resonant type wireless electric energy transmission technology is adopted by the wireless power supply system; the bilateral distributed sectional type transmitting apparatus in the corresponding section is switched and controlled to be connected to a circuit through a switch according to the real-time position of electric locomotive; the bilateral distributed sectional type receiving apparatus and the transmitting apparatus are coupled to transmit electric energy; and then the electric energy passes through a rectifying conversion unit so as to further provide power for the locomotive. The wireless power supply mode is adopted, so that the shortcoming of low safety of a contact power supply mode can be avoided; the positioning-switching section type power supply mode is adopted, so that the loss in wireless electric energy transmission can be lowered, and efficiency is improved; and the bilateral receiving and transmitting technology is adopted, so that the transmission power can be increased to the maximum based on actual conditions of the monorail.
Description
Technical field
The present invention relates to the engineer applied system of a kind of wireless power transmission in track traffic.Particularly relate to a kind of single-track beam support wireless power supply system.
Background technology
There are problems in the existing traffic system in China city, such as outstanding have three aspects: blocking peak period and seriously crowded, and transport structure is single, larger on the impact of environment.Want basic transport solution problem, just must adjust existing transport structure, develop various track traffic.As the track traffic of medium-heavy road traffic, single track railway is the traffic form meeting China's city demand.
Wireless power transmission technology obtains fast development in recent years, from the wireless charging of low power electronic product household electrical appliance to powerful electric automobile wireless charging, wireless power transmission technology has outstanding performance, it is as a kind of method of Energy Transfer, effectively compensate for the drawback that tradition has contact delivery of electrical energy.Until the Malin Sol Jia Xike professor of Massachusetts Institute Technology in 2007 and team thereof light the bulb of a 60W based on electromagnetic field resonance theory over two meters, propose electromagnetic resonance manifold type wireless power transmission theoretical, this technology compensate for the drawback of inductive coupling type WPT technology at transmission range and equipment application flexibility, has led Chinese scholars to the research boom of resonance manifold type WPT technology.Due to the development of magnet coupled resonant type wireless electric energy transmission technology, the performance parameter such as distance for wireless power transmission has very large change.
Wireless power transmission technology mainly have passed through the early stage conceptual phase such as microwave transmission, laser transmission, inductively transmission since appearance, the various ways such as magnetic coupling resonance finally the Rapid development stage of depositing, develop into and entered products application and marketing stage today.Along with the continuous breakthrough of technology, wireless power transmission technology offers convenience constantly to the life of the mankind.
Current single track railway mainly adopts the track supply power mode of contact, this supply power mode due to electrical supply rail in atmosphere exposed, there is very large potential safety hazard, safely threat produced to the people's lives and property.In addition be exposed on the external because electrical supply rail is naked, subject to be subject to artificial destruction or spontaneous corrosion.Therefore the problem how effectively solving power supply reliability and fail safe can not be ignored.This kind of have the supply power mode drawback of contact to be: due to sliding friction, and the component wear such as pantograph or collecting brush is serious, and need periodic replacement, maintenance cost is higher.There is contact supply power mode inevitably to occur the situations such as electric wire is exposed, there is potential safety hazard.In inclement weather, as under ice disaster, overhead type contact line circuit or the attached ice of transmission of electricity track, be difficult to ensure reliable power supply, and when this external electric locomotive high-speed cruising, overhead type contact line cable there will be beats the dangerous situation such as arc, off-line.The present invention adopts wireless non-contacting mode to be that single track railway is powered, and fundamentally avoids above problem, thus significantly improves current carrying quality, realize high efficiency of transmission and the utilization of electric energy, and has contact supply power mode more safe and reliable than traditional slip.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of single-track beam support wireless power supply system, the mode of wireless power is adopted to evade the drawback contacting Supply Security difference in prior art, the mode adopting location to switch sectional power supply is conducive to loss when reducing wirelessly transmitting electrical energy, raise the efficiency, solve deficiency of the prior art.
Technical scheme: for achieving the above object, the technical solution used in the present invention is: a kind of single-track beam support wireless power supply system comprises electrical network, high-frequency inversion device, radio transmitting apparatus, radio system, rectifying conversion device and locomotive load.
First, track bridge is divided into the identical segmentation of some length according to certain interval.
Described radio transmitting apparatus comprises rectangular coil transmitting coil, described rectangular coil transmitting coil is the coil of independently additional serial resonance compensation electric capacity, the circle center line connecting axle of described transmitting coil is perpendicular to the ground, be arranged in the left and right sides of each segmentation inner orbit bridge, each segmentation internal emission line circle is symmetrical and level height is identical, and in each segmentation, the emitter of the left and right sides adopts the connected mode of series connection; Radio transmitting apparatus in each segmentation is connected to an independently switch be connected to electrical network by high-frequency inversion device;
Position detecting device is provided with in each segmentation of track bridge; Described position detecting device is connected with described independently switch; Each segmentation is all provided with the energy transmitting coil of a long rectangle, this type of transmitting coil each is by independent switch control rule whether place in circuit, when electric locomotive leaves the scope of previous long rectangular emanation coil, enter next long rectangular emanation coil scope, previous long square coil is now needed to disconnect, by long for next one square coil place in circuit.
Described radio system comprises rectangular coil receiving coil, described rectangular coil receiving coil is the coil of independently additional serial resonance compensation electric capacity, the circle center line connecting axle of described receiving coil is perpendicular to the ground, be arranged in the left and right sides bottom railway car, symmetrically and level height is identical, the receiving system often saving the car bottom left and right sides adopts the mode of series connection to connect to the radio system often saving the car bottom left and right sides; Described radio system is connected to locomotive load by rectification changeable device.
In radio energy transmission system, the most frequently used coil shape is circular coil and square coil etc., and real life is total, the maximum valid shape of car bottom is long rectangle, therefore in order to utilize this space to greatest extent, the present invention selects square coil, can utilize this space to greatest extent.
With traditional single transmit compared with single receiving coil, the mode that the present invention adopts bilateral to receive and dispatch, make full use of the existing single track railway system bottom confined space, therefore all there are two transmitting coils and two receiving coils in per moment, this structure is adopted effectively to strengthen the Mutual Inductance Coupling of sending and receiving end, thus the power of effectively energization transmission.
If the transmitting coil of the left and right sides and receiving coil are not connected, then need two groups of rectifying devices at receiving terminal, corresponding to each independently receiving coil, the transmitting coil of the left and right sides and receiving coil are connected in series together by the present invention, only need one group of rectification transposition can to achieve a butt joint the high-frequency current rectification received, effectively reduce costs.In addition, bilateral all installs receiving coil can make full use of wired car bottom space, increases R-T unit coupling coefficient, thus energization through-put power.
Further, consider the factor such as loss in train running speed, the response speed of switching controls, energy transport in each segmentation and construction cost corresponding to number of fragments, described transmitting coil length is 10 to 20 times of train length.
Further, described receiving coil length is with often to save car length identical.Owing to being subject to the restriction of car length, can not exceed the length in compartment in force, in order to utilize car bottom space to greatest extent, receiving coil length needs large as far as possible, is therefore approximately equal to and often saves car length.
Further, described transmitting coil is consistent with the HF current frequency that high-frequency inversion device produces with the resonance frequency of receiving coil.Emitter and receiving system all by the size of adjustment building-out capacitor, can ensure that emitter is consistent with the HF current frequency that high-frequency inversion device produces with the resonance frequency of receiving system.
Further, the quantity that described radio system is installed is less than or equals the quantity of railway car.
Beneficial effect: a kind of single-track beam support wireless power supply system provided by the invention, based on magnet coupled resonant type wireless electric energy transmission technology, adopt radio transmitting apparatus and radio system, emitter and receiving system are all vertically placed, by the coupling of R-T unit, by electric energy wireless transmission in electric locomotive, for the operation of electric locomotive provides power.The present invention adopts the mode of wireless power to be that single-track beam support is powered, not only efficiently avoid the drawback contacting guide tracked power supply, the reliability that the single-track beam support improved is powered and fail safe, and adopt the radio transmitting apparatus of the special construction that the present invention relates to and radio system to further increase efficiency and the power of Energy Transfer, and the mode that segmentation switches also reduces the loss of bilateral transmitting coil.
Accompanying drawing explanation
Fig. 1 is a kind of single-track beam support wireless power supply system of the present invention principle schematic;
Fig. 2 is the energy transform device scheme of installation that the present invention specifically implements;
Fig. 3 is emitter of the present invention and receiving system simplified electrical circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
The present invention devises a kind of single-track beam support wireless power supply system, comprises electrical network, high-frequency inversion device, radio transmitting apparatus, radio system, rectifying conversion device, locomotive load.According to the position of train, by corresponding radio transmitting apparatus place in circuit.Powered to energy emitting device by power supply, the receiving system just right with being positioned at locomotive is coupled, pickup is to the energy from distributed transmitting coil, alternating current is regenerated in receiving system, power electronic equipment in rectifying conversion device, produce the electric energy being suitable for locomotive and using, for load provides power.
As shown in Figure 2, the distributed emitter of bilateral segmentation is the long rectangular coil transmitting coil of multiple independently additional serial resonance compensation electric capacity, each long rectangular coil transmitting coil length is determined according to the length of running train, length is about 10 to 20 times of running train length, the distributed emitter of bilateral segmentation is arranged on single track railway track girder both sides, symmetrical left and right is vertically installed respectively, and the emitter of described segmentation distribution all installed by whole piece track.
Bilateral segmentation distributed reception device is the rectangular coil receiving coil of multiple independently additional serial resonance compensation electric capacity, and each rectangular coil receiving coil length is determined according to the length often saving compartment, and length is slightly shorter than the length often saving compartment.Bilateral segmentation distributed reception coil is vertically arranged on inside the left and right of often joint compartment and track girder bridging section respectively.The installation quantity of bilateral segmentation distributed reception device is no more than railway car quantity.
By regulating the resonance frequency of receiving terminal building-out capacitor adjusting energy receiving system.Regulate emitter and receiving system to be in same resonance frequency, electric energy carries out Energy Transfer by the mode of magnetic Field Coupling.
As shown in Figure 3, about the symmetric position in each segmentation of the distributed emitter of bilateral segmentation, two emitters adopt the mode be connected in series, i.e. comprise two energy transmitting coils be connected in series in the energy transmitting terminal loop in per moment.About the symmetric position in each segmentation of bilateral segmentation distributed reception device, two receiving systems adopt the mode be connected in series, i.e. comprise two energy acceptance coils be connected in series in the energy acceptance end loop in per moment.Wherein U
infor the voltage that high-frequency inversion device produces, L
p1, L
p2, L
s1and L
s2be respectively the inductance of energy transmitting terminal and each coil of energy acceptance end, C
pand C
sbe respectively total resonance compensation electric capacity of energy transmitting terminal and energy acceptance end, R
pand R
sbe respectively the coil all-in resistance of energy transmitting terminal and energy acceptance end, M
1and M
2be respectively the mutual inductance of the two groups of energy R-T units in left and right, R
lfor load equivalent resistance.
A kind of single-track beam support wireless power supply system comprises electrical network, high-frequency inversion device, radio transmitting apparatus, radio system, rectifying conversion device and locomotive load.
First, track bridge is divided into the identical segmentation of some length according to certain interval.
Described radio transmitting apparatus comprises rectangular coil transmitting coil, described rectangular coil transmitting coil is the coil of independently additional serial resonance compensation electric capacity, the circle center line connecting axle of described transmitting coil is perpendicular to the ground, be arranged in the left and right sides of each segmentation inner orbit bridge, each segmentation internal emission line circle is symmetrical and level height is identical, and in each segmentation, the transmitting coil of the left and right sides adopts the connected mode of series connection; Radio transmitting apparatus in each segmentation is connected to an independently switch be connected to electrical network by high-frequency inversion device;
Position detecting device is provided with in each segmentation of track bridge; Described position detecting device is connected with described independently switch; Each segmentation is all provided with the energy transmitting coil of a long rectangle, this type of transmitting coil each is by independent switch control rule whether place in circuit, when electric locomotive leaves the scope of previous long rectangular emanation coil, enter next long rectangular emanation coil scope, previous long square coil is now needed to disconnect, by long for next one square coil place in circuit.
Described radio system comprises rectangular coil receiving coil, described rectangular coil receiving coil is the coil of independently additional serial resonance compensation electric capacity, the circle center line connecting axle of described receiving coil is perpendicular to the ground, be arranged in the left and right sides bottom railway car, symmetrically and level height is identical, the receiving coil often saving the car bottom left and right sides adopts the mode of series connection to connect to the radio system often saving the car bottom left and right sides; Described radio system is connected to locomotive load by rectification changeable device.
In radio energy transmission system, the most frequently used coil shape is circular coil and square coil etc., and real life is total, the maximum valid shape of car bottom is long rectangle, therefore in order to utilize this space to greatest extent, the present invention selects square coil, can utilize this space to greatest extent.
With traditional single transmit compared with single receiving coil, the mode that the present invention adopts bilateral to receive and dispatch, make full use of the existing single track railway system bottom confined space, therefore all there are two transmitting coils and two receiving coils in per moment, this structure is adopted effectively to strengthen the Mutual Inductance Coupling of sending and receiving end, thus the power of effectively energization transmission.
If the transmitting coil of the left and right sides and receiving coil are not connected, then need two groups of rectifying devices at receiving terminal, corresponding to each independently receiving coil, the transmitting coil of the left and right sides and receiving coil are connected in series together by the present invention, only need one group of rectification transposition can to achieve a butt joint the high-frequency current rectification received, effectively reduce costs.In addition, bilateral all installs receiving coil can make full use of wired car bottom space, increases R-T unit coupling coefficient, thus energization through-put power.
Consider the factor such as loss in train running speed, the response speed of switching controls, energy transport in each segmentation and construction cost corresponding to number of fragments, described transmitting coil length is 10 to 20 times of train length.
Described receiving coil length is with often to save car length identical.Owing to being subject to the restriction of car length, can not exceed the length in compartment in force, in order to utilize car bottom space to greatest extent, receiving coil length needs large as far as possible, is therefore approximately equal to and often saves car length.
Described transmitting coil is consistent with the HF current frequency that high-frequency inversion device produces with the resonance frequency of receiving coil.Emitter and receiving system all by the size of adjustment building-out capacitor, can ensure that emitter is consistent with the HF current frequency that high-frequency inversion device produces with the resonance frequency of receiving system.
The quantity that described radio system is installed is less than or equals the quantity of railway car.
A kind of single-track beam support wireless power supply system of the present invention comprises electrical network, high-frequency inversion device, radio transmitting apparatus, radio system, rectifying conversion device, locomotive load.
In the present invention, the distributed emitter of bilateral segmentation is the long rectangular coil transmitting coil of multiple independently additional serial resonance compensation electric capacity, each long rectangular coil transmitting coil length is determined according to the length of running train, length is about 10 to 20 times of running train length, the distributed emitter of bilateral segmentation is arranged on single track railway track girder both sides, symmetrical left and right is vertically installed respectively, and the emitter of described segmentation distribution all installed by whole piece track.
In the present invention, described bilateral segmentation distributed reception device is the rectangular coil receiving coil of multiple independently additional serial resonance compensation electric capacity, each rectangular coil receiving coil length is determined according to the length often saving compartment, and length is slightly shorter than the length often saving compartment.Bilateral segmentation distributed reception coil is vertically arranged on inside the left and right of often joint compartment and track girder bridging section respectively.The installation quantity of bilateral segmentation distributed reception device is no more than railway car quantity.
In the present invention, powered to energy emitting device by high-frequency inversion device, the receiving system just right with being positioned at locomotive is coupled, pickup is to the energy from distributed transmitting coil, alternating current is regenerated in receiving system, power electronic equipment in rectifying conversion device, produces the electric energy being suitable for locomotive and using, for load provides power.
In the present invention, the described distributed emitter of bilateral segmentation and bilateral segmentation distributed reception device adopt the square spiral coil of same widths, and the level height of installing is identical.
In the present invention, about the symmetric position in the described each segmentation of the distributed emitter of bilateral segmentation, two emitters adopt the mode be connected in series, i.e. comprise two energy transmitting coils be connected in series in the energy transmitting terminal loop in per moment.
In the present invention, about the symmetric position in the described each segmentation of bilateral segmentation distributed reception device, two receiving systems adopt the mode be connected in series, i.e. comprise two energy acceptance coils be connected in series in the energy acceptance end loop in per moment.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a single-track beam support wireless power supply system, is characterized in that: comprise electrical network, high-frequency inversion device, radio transmitting apparatus, radio system, rectifying conversion device and locomotive load;
Track bridge is divided into the identical segmentation of some length;
Described radio transmitting apparatus comprises rectangular coil transmitting coil, described rectangular coil transmitting coil is the coil of independently additional serial resonance compensation electric capacity, the circle center line connecting axle of described transmitting coil is perpendicular to the ground, be arranged in the left and right sides of each segmentation inner orbit bridge, each segmentation internal emission line circle is symmetrical and level height is identical, and in each segmentation, the emitter of the left and right sides adopts the connected mode of series connection; Radio transmitting apparatus in each segmentation is connected to an independently switch be connected to electrical network by high-frequency inversion device;
Position detecting device is provided with in each segmentation of track bridge; Described position detecting device is connected with described independently switch;
Described radio system comprises rectangular coil receiving coil, described rectangular coil receiving coil is the coil of independently additional serial resonance compensation electric capacity, the circle center line connecting axle of described receiving coil is perpendicular to the ground, be arranged in the left and right sides bottom railway car, symmetrically and level height is identical, the receiving system often saving the car bottom left and right sides adopts the mode of series connection to connect to the radio system often saving the car bottom left and right sides; Described radio system is connected to locomotive load by rectification changeable device.
2. a kind of single-track beam support wireless power supply system according to claim 1, is characterized in that: described transmitting coil length is 10 to 20 times of train length.
3. a kind of single-track beam support wireless power supply system according to claim 1, is characterized in that: described receiving coil length is with often to save car length identical.
4. a kind of single-track beam support wireless power supply system according to Claims 2 or 3, is characterized in that: described transmitting coil is consistent with the HF current frequency that high-frequency inversion device produces with the resonance frequency of receiving coil.
5. a kind of single-track beam support wireless power supply system according to claim 1, is characterized in that: the quantity that described radio system is installed is less than or equals the quantity of railway car.
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| CN201511020605.8A CN105471122B (en) | 2015-12-30 | 2015-12-30 | A kind of single-track beam support wireless power supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106655427A (en) * | 2017-02-14 | 2017-05-10 | 薛建仁 | Station charging apparatus of new energy sky train |
| CN110224501A (en) * | 2019-07-17 | 2019-09-10 | 天津工业大学 | It is a kind of to encircle coupled structure applied to the charging of high-speed rail train radio |
| CN111541308A (en) * | 2020-05-09 | 2020-08-14 | 中车株洲电力机车研究所有限公司 | Control method and control system for dynamic non-contact power supply |
| CN112332555A (en) * | 2020-10-22 | 2021-02-05 | 重庆前卫无线电能传输研究院有限公司 | Double-wire guide rail type wireless power supply system |
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| CN103633748A (en) * | 2013-11-12 | 2014-03-12 | 天津工业大学 | Wireless power supply system for electromagnetic resonance type railway locomotive |
| CN103840528A (en) * | 2014-03-19 | 2014-06-04 | 国家电网公司 | Wireless charge control method based on coordination control over voltage and frequency of power supply |
| CN104998420A (en) * | 2015-07-27 | 2015-10-28 | 东南大学 | Rail transport electronic toy train employing sectional switch-type wireless power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102412635A (en) * | 2011-12-28 | 2012-04-11 | 东南大学 | Wireless power supply device of mobile equipment |
| CN103633748A (en) * | 2013-11-12 | 2014-03-12 | 天津工业大学 | Wireless power supply system for electromagnetic resonance type railway locomotive |
| CN103840528A (en) * | 2014-03-19 | 2014-06-04 | 国家电网公司 | Wireless charge control method based on coordination control over voltage and frequency of power supply |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655427A (en) * | 2017-02-14 | 2017-05-10 | 薛建仁 | Station charging apparatus of new energy sky train |
| CN110224501A (en) * | 2019-07-17 | 2019-09-10 | 天津工业大学 | It is a kind of to encircle coupled structure applied to the charging of high-speed rail train radio |
| CN111541308A (en) * | 2020-05-09 | 2020-08-14 | 中车株洲电力机车研究所有限公司 | Control method and control system for dynamic non-contact power supply |
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| CN112332555A (en) * | 2020-10-22 | 2021-02-05 | 重庆前卫无线电能传输研究院有限公司 | Double-wire guide rail type wireless power supply system |
| CN112332555B (en) * | 2020-10-22 | 2022-06-03 | 重庆前卫无线电能传输研究院有限公司 | Double-wire guide rail type wireless power supply system |
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