CN105790451A - Gasless electrification train - Google Patents
Gasless electrification train Download PDFInfo
- Publication number
- CN105790451A CN105790451A CN201610282119.1A CN201610282119A CN105790451A CN 105790451 A CN105790451 A CN 105790451A CN 201610282119 A CN201610282119 A CN 201610282119A CN 105790451 A CN105790451 A CN 105790451A
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- CN
- China
- Prior art keywords
- train
- electric
- power supply
- differential protection
- transverse differential
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/03—Electric propulsion by linear motors
-
- 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
- B60L9/00—Electric propulsion with power supply external to the vehicle
Abstract
The invention discloses a gasless electrification train which takes a high-temperature superconductive linear traction motor as a power source. A motor mover portion is mainly formed by an excitation winding 5, a secondary skeleton 8 and a low temperature container 6. A wireless energy transmission device is taken as an equipment power supply of the train. The wireless energy transmission device undertakes power supply for all the electric equipment of the train. A receiving coil group 4 is arranged on a train bottom, is arranged on two sides of the motor excitation winding 5 as a certain distance, is near a track paved on the ground and accesses a transmitting coil group 2 of a high frequency alternating current power supply so as to keep a consistent resonant frequency and form wireless electric energy transmission coupling. An output terminal of the receiving coil group 4 is connected to train load equipment. The train is used for track transport, traditional pantograph contact power supply is avoided, any vehicle-mounted power supply is not needed and the gasless electrification train is realized. The train possesses advantages that train body weight is light; thrust density is high; a work air gap is large and so on.
Description
Technical field
The present invention relates to rail vehicle and vehicle-mounted power supply unit thereof, especially relate to high-temperature superconducting linear traction electric machine and the wireless energy transfer field of track traffic traction purposes.
Background technology
Under the background that, speed faster direction lower to operation energy consumption, in hgher efficiency in Rail Transit System develops rapidly, conventional train technology can not fully meet the demand of transport development.Traditional urban track traffic, such as inter-city train, subway etc., substantially all contact net is adopted to power, subway contact net height is typically between 5-7 rice, and subway tunnel height is typically in 4-5 rice, here the equipment such as contact net support are also arranged, so when actual motion, pantograph is pressed very low, therefore elastic force is very big, and the wire of contact net is copper cash, it is easy in this case be scraped damage by pantograph, additionally, train is easy loose contact when high-speed cruising, cause the problem such as arcing and electric spark, cause traction power supply abnormal, affect safety and the quality of passenger service of train operation.
Linear electric motors are a kind of contactless linear pulling power set, without intermediate transmission mechanism, train is directly dragged using electromagnetic force as pull strength, make train climbing capacity especially prominent, avoid pantograph and contact the problem flowed, simultaneously, owing to the frictional force between wheel track does not recur draw, make train not by the restriction of Mechanical Contact adhesion strength, therefore can pass through to reduce the friction between wheel track, reduce vehicle drag, be conducive to the lifting of the speed of service, and the loss that rail wheeling action produces can be significantly reduced, extend vehicle service life.Although utilizing superconducting linear motor to solve train dynamics problem, but the electricity consumption of train apparatus need nonetheless remain for using pantograph or vehicle power.
Closed-loop Constant-current refers to that solenoid can disconnect external power source after excitation and can maintain current constant or faint decay for a long time, it is the exclusive character of superconductor, this Closed-loop Constant-current superconducting magnet is used for the Exciting Windings for Transverse Differential Protection of linear electric motors, without Vehicular direct-current field power supply, while alleviating tare, also improve working gas gap and the output of linear electric motors.
Radio energy-transmitting technology is a kind of to be realized from power supply to the new technique of load contactless electrical energy transmission by galvanomagnetic-effect or energy exchange effect, power is wirelessly transferred including utilizing electromagnetic induction principle to realize inductive coupling type wireless energy transmission technology and by the near-field coupling in magnetic field, receiving coil and transmitting coil resonance is made to realize the magnetic coupling resonance type wireless energy transmission technology that energy is wirelessly transferred, compare conventional wires power transmission mode, there is simple in construction, the advantages such as weight is light, and radio energy-transmitting receiving terminal can be powered to various loads as power supply, improve the motility of its application.Currently also there are some to utilize radio energy-transmitting technology to realize train to drive and the imagination of power supply is (such as the track traffic contactless power supply device of a kind of honeycomb fashion coil and method of supplying power to CN103795156B thereof simultaneously；The assay device of railcar non-contact type electric energy transmission system and test method CN104764955A thereof), but owing to radio energy-transmitting super high power and high efficiency transmission are difficulty with at present, therefore power traction and equipment electricity consumption are provided technical difficulty high by radio energy-transmitting equipment completely.
Summary content, if able to superconducting linear motor is applied to train traction, using radio energy-transmitting device as train power supply power supply, replace the vehicle power of existing heaviness, design a kind of novel Closed-loop Constant-current superconducting linear motor traction anury electric train little, high thrust, big air gap of conducting oneself with dignity, then it is greatly saved train maintenance cost undoubtedly, improves the operational efficiency of track traffic.
Summary of the invention
It is desirable to provide the anury electric train that a kind of Closed-loop Constant-current superconducting linear motor draws, radio energy-transmitting device is powered, its basic thought is that the coil utilizing high temperature superconducting materia coiling produces high-intensity magnetic field as motor excitation winding and stator three-phase travelling-magnetic-field interacts, produce the big electromagnetic push pull strength as train, wherein Exciting Windings for Transverse Differential Protection is in Closed-loop Constant-current duty under the effect of superconducting switch, and utilize radio energy-transmitting receiving coil group as the power supply of train, undertake the need for electricity of train armamentarium.
This invention address that the scheme that its technical problem adopts is as follows: a kind of anury electric train, adopt high-temperature superconducting linear traction electric machine as power source, electric mover part is mainly made up of Exciting Windings for Transverse Differential Protection 5, secondary framework 8 and low-temperature (low temperature) vessel 6.Radio energy-transmitting device is as the equipment power supply of train；Described radio energy-transmitting device undertakes the power supply of all electrical equipments of train；Receiving coil group 4 is placed in bottom train, is listed in motor excitation winding 5 both sides with a determining deviation, keeps resonant frequency consistent with being laid near ground rail and accessing the transmitting winding group 2 of high-frequency ac power, forms radio energy transmission coupling；Receiving coil group 4 outfan is connected with train load equipment.
Linear motor rotor part is mainly made up of Exciting Windings for Transverse Differential Protection 5, secondary framework 8 and low-temperature (low temperature) vessel 6, wherein by the high temperature superconducting materia lap wound multiple racetrack coils on coil rack 8 Exciting Windings for Transverse Differential Protection 5 as motor, access superconducting switch 7 in parallel after connecting in a series arrangement, realize the Closed-loop Constant-current duty of Exciting Windings for Transverse Differential Protection 5, it is placed in low-temperature (low temperature) vessel 6, and keeps the electric current passed into make the magnetic direction that adjacent Exciting Windings for Transverse Differential Protection 5 produces contrary；
Its primary stationary part: copper three-phase symmetrical armature winding 1 is around on primary iron core, adopt star or delta connection, after passing into three-phase symmetrical alternating current, produce three-phase travelling-magnetic-field at air gap place, the high-intensity magnetic field produced with Exciting Windings for Transverse Differential Protection 5 interacts, and tractor-trailer train moves；
Radio energy-transmitting device undertakes the power supply of all electrical equipments of train, and transmitting winding group 2 is laid near ground rail, accesses high-frequency ac power；Receiving coil group 4 is placed in bottom train, it is listed in motor excitation winding 5 both sides with a determining deviation, and is connected with train load equipment, each coil capacity of reasonable disposition and inductance, keep transmitting winding group 2 consistent with the resonant frequency of receiving coil group 4, thus reaching the maximization of electric energy transmission.
Compared with prior art, the invention has the beneficial effects as follows:
1, utilize the Closed-loop Constant-current that high-temperature superconductor switch transformation from normal state to superconducting state achieves Exciting Windings for Transverse Differential Protection to run, unloaded Vehicular direct-current field power supply, significantly reduced volume and the quality of mover；
2, the need for electricity of train all devices is provided by radio energy-transmitting device, and the power needed for train traction is shared by superconducting linear motor, two kinds of technology combine and use, overcome realize individually with radio energy-transmitting simultaneously equipment power and during power traction underpower and when can not avoid train high-speed cruising individually with superconducting linear motor pantograph take stream power supply or the problem such as vehicle power is overweight, while optimizing system structure, also improve train operation efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of anury electric train.
Fig. 2 is adjacent three the Exciting Windings for Transverse Differential Protection structure charts of anury electric train.
Fig. 3 is radio energy-transmitting schematic diagram.
Detailed description of the invention
Described below is in conjunction with accompanying drawing detailed description of the invention, and should not be construed limitation of the invention.
Illustrated by accompanying drawing 1, the specific embodiment of the present invention is: a kind of anury electric train, adopt high-temperature superconducting linear traction electric machine as power source, electric mover part is mainly made up of Exciting Windings for Transverse Differential Protection 5, secondary framework 8 and low-temperature (low temperature) vessel 6, it is characterized in that, radio energy-transmitting device is as the equipment power supply of train；Described radio energy-transmitting device undertakes the power supply of all electrical equipments of train；Receiving coil group 4 is placed in bottom train, is listed in motor excitation winding 5 both sides with a determining deviation, keeps resonant frequency consistent with being laid near ground rail and accessing the transmitting winding group 2 of high-frequency ac power, forms radio energy transmission coupling；Receiving coil group 4 outfan is connected with train load equipment.
nullThe copper armature winding 1 of three-phase symmetrical is around in low conductivity、On the primary iron core of high magnetic permeability，Adopt star or delta connection，Three-phase symmetrical alternating current is passed into through alternating current power supply or frequency-variable controller，Then will produce three-phase travelling-magnetic-field at air gap place，For making thrust suffered by mover maximum，Secondary Exciting Windings for Transverse Differential Protection 5 structure adopts racetrack，Formed by high temperature superconducting materia lap wound on coil rack 8，Connect in a series arrangement，And enable the electric current passed into make the magnetic direction that adjacent Exciting Windings for Transverse Differential Protection 5 produces contrary，5 two joints of Exciting Windings for Transverse Differential Protection superconducting switch 7 in parallel realizes Closed-loop Constant-current，The high-intensity magnetic field that Exciting Windings for Transverse Differential Protection 5 produces interacts with stator three-phase travelling-magnetic-field，And then produce big electromagnetic push，Electric mover entirety immerses in low-temperature (low temperature) vessel 6，Make Exciting Windings for Transverse Differential Protection 5 can be operated in liquid nitrogen or a certain warm area that refrigeration machine cools down，Electric mover car body 9 is connected with track 10 through underframe 3 or magnetic suspension mode，Radio energy-transmitting transmitting winding group 2 is listed in motor stator both sides，Receiving coil group 4 is placed in bottom car body 9.
Accompanying drawing 2 gives anury electric train adjacent three Exciting Windings for Transverse Differential Protection structure charts.High-temperature superconductor band or wire rod lap wound are on racetrack coil rack 8, form motor excitation winding 5, each Exciting Windings for Transverse Differential Protection 5 has two taps, installation process need the electric current passed into after keeping Exciting Windings for Transverse Differential Protection 5 series connection make the magnetic direction that adjacent Exciting Windings for Transverse Differential Protection 5 produces contrary, two taps superconducting switch 7 in parallel that Exciting Windings for Transverse Differential Protection 5 after series connection is drawn, under certain controlled state, superconducting filament in superconducting switch 7 becomes superconducting state from normal state, superconducting switch 7 closes, realize the Closed-loop Constant-current duty of Exciting Windings for Transverse Differential Protection 5, thus breaking away from the constraint of vehicle-mounted excitation dc power.
Accompanying drawing 3 gives anury train radio of the present invention and passes energy equipment operating diagram.Being listed in after the transmitting winding group 2 of superconduction linear pulling motor stator both sides accesses high-frequency alternating current, occur near field magnetic to couple with the receiving coil group 4 being placed in bottom train, when resonant frequency is consistent, the efficiency of electric energy transmission is maximum.Receiving coil group 4 is connected with train electrical equipment, undertakes the need for electricity of whole train, and the application of radio energy-transmitting technology makes the deadweight of train be greatly reduced, and electric power maintenance also becomes convenient.
Claims (5)
1. an anury electric train, adopt high-temperature superconducting linear traction electric machine as power source, electric mover part is mainly made up of Exciting Windings for Transverse Differential Protection (5), secondary framework (8) and low-temperature (low temperature) vessel (6), it is characterized in that, radio energy-transmitting device is as the equipment power supply of train；Described radio energy-transmitting device undertakes the power supply of all electrical equipments of train；Receiving coil group (4) is placed in bottom train, it is listed in motor excitation winding (5) both sides with a determining deviation, with be laid near ground rail and access high-frequency ac power transmitting winding group (2) keep resonant frequency consistent, formed radio energy transmission couple；Receiving coil group (4) outfan is connected with train load equipment.
2. anury electric train according to claim 1, it is characterized in that, the high temperature superconducting materia lap wound multiple racetrack coils on coil rack (8) are as the Exciting Windings for Transverse Differential Protection (5) of motor, access superconducting switch (7) in parallel after connecting in a series arrangement, it is placed in low-temperature (low temperature) vessel (6), and keeps the electric current passed into make the magnetic direction that adjacent Exciting Windings for Transverse Differential Protection (5) produces contrary；Its primary stationary part: copper three-phase symmetrical armature winding 1 is around on primary iron core, adopts star or delta connection, after passing into three-phase symmetrical alternating current, produces three-phase travelling-magnetic-field at air gap place.
3. anury electric train according to claim 1, it is characterized in that, Exciting Windings for Transverse Differential Protection (5) coil connectors access in parallel with superconducting switch (7) exciting current, utilizes the superconducting switch (7) conversion from normal state to superconducting state to realize the Closed-loop Constant-current of Exciting Windings for Transverse Differential Protection (5).
4. anury electric train according to claim 1, it is characterised in that high-temperature superconducting linear traction electric machine, as the power source of train, relies on the electromagnetic force of linear electric motors as pull strength.
5. anury electric train according to claim 1, it is characterised in that a certain warm area that the high-temperature superconductor Exciting Windings for Transverse Differential Protection (5) of linear motor rotor is operated in liquid nitrogen or refrigeration machine cools down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610282119.1A CN105790451A (en) | 2016-04-29 | 2016-04-29 | Gasless electrification train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610282119.1A CN105790451A (en) | 2016-04-29 | 2016-04-29 | Gasless electrification train |
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| Publication Number | Publication Date |
|---|---|
| CN105790451A true CN105790451A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610282119.1A Pending CN105790451A (en) | 2016-04-29 | 2016-04-29 | Gasless electrification train |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367392A (en) * | 2018-11-28 | 2019-02-22 | 兰州交通大学 | A kind of contactless train pantograph |
| CN109849698A (en) * | 2019-02-27 | 2019-06-07 | 哈尔滨工业大学 | A kind of five phase wireless charging magnetic couplings applied to rail traffic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008279917A (en) * | 2007-05-11 | 2008-11-20 | Railway Technical Res Inst | Operation system of super-conductive magnet for magnetically-suspended railway vehicle |
| CN102136789A (en) * | 2011-04-11 | 2011-07-27 | 西南交通大学 | High-temperature superconductive rotor for synchronous linear motor |
| CN103633747A (en) * | 2013-11-12 | 2014-03-12 | 天津工业大学 | Electromagnetic resonance wireless power supply system for subway |
-
2016
- 2016-04-29 CN CN201610282119.1A patent/CN105790451A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008279917A (en) * | 2007-05-11 | 2008-11-20 | Railway Technical Res Inst | Operation system of super-conductive magnet for magnetically-suspended railway vehicle |
| CN102136789A (en) * | 2011-04-11 | 2011-07-27 | 西南交通大学 | High-temperature superconductive rotor for synchronous linear motor |
| CN103633747A (en) * | 2013-11-12 | 2014-03-12 | 天津工业大学 | Electromagnetic resonance wireless power supply system for subway |
Non-Patent Citations (1)
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| 赵佳: "高温超导直线感应电机设计研究", 《中国博士学位论文全文数据库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367392A (en) * | 2018-11-28 | 2019-02-22 | 兰州交通大学 | A kind of contactless train pantograph |
| CN109367392B (en) * | 2018-11-28 | 2024-02-27 | 兰州交通大学 | Non-contact type train pantograph |
| CN109849698A (en) * | 2019-02-27 | 2019-06-07 | 哈尔滨工业大学 | A kind of five phase wireless charging magnetic couplings applied to rail traffic |
| CN109849698B (en) * | 2019-02-27 | 2020-07-14 | 哈尔滨工业大学 | Five-phase wireless charging magnetic coupling mechanism applied to rail transit |
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Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |