CN201405852Y - High-efficient suspension and traction integrated system for maglev trains - Google Patents
High-efficient suspension and traction integrated system for maglev trains Download PDFInfo
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- CN201405852Y CN201405852Y CN2009200645877U CN200920064587U CN201405852Y CN 201405852 Y CN201405852 Y CN 201405852Y CN 2009200645877 U CN2009200645877 U CN 2009200645877U CN 200920064587 U CN200920064587 U CN 200920064587U CN 201405852 Y CN201405852 Y CN 201405852Y
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- line inductance
- inductance electromotor
- induction motor
- levitation
- traction
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Abstract
The utility model discloses a high-efficient suspension and traction integrated system for maglev trains, which comprises a suspension and traction controller, a linear induction motor, a linear induction motor supporting beam and a power source. The linear induction motor comprises a primary linear induction motor and a secondary linear induction motor, the suspension and traction controller, theprimary linear induction motor and the power source are fixed on a train body, the secondary linear induction motor is arranged below a track, and the secondary linear induction motor is laid out along the track in a flat plate form. The high-efficient suspension and traction integrated system for maglev trains is simple and compact in structure, low in cost, simple in operation principle, convenient in control and fine in energy saving effect.
Description
Technical field
The utility model is mainly concerned with the maglev vehicle field, refers in particular to a kind of levitation traction integrated system for high-efficiency magnetic-levitation train.
Background technology
At present, magnetic-levitation train more and more is able to promotion and application as a kind of following green traffic instrument of extensive application prospect.Divide by speed, magnetic-levitation train is divided at a high speed and middle low-speed maglev train, and wherein middle low-speed maglev train is meant speed≤150km/h, is applicable to the vehicle in city or outskirts of a town.Traditionally, middle low-speed maglev train adopts U type levitating electromagnet suspension car body, line inductance electromotor mode of traction, as shown in Figure 1, levitating electromagnet 10 is installed on the car body 2, and F type track comprises steel tie 8 and track girder 9, is provided with air bellow 6 between car body 2 and the bogie truck module 7.Under the control of suspension controller 12, behind the coil electricity of levitating electromagnet 10, produce along the magnetic flux of U sections core and the circulation of F type track upper core, directly levitating electromagnet 10 and F type track are attracted each other by this magnetic flux, thereby train is suspended, also be equiped with air gap sensor 11 therebetween.Line inductance electromotor elementary 4 is installed on the car body 2, by applying three phasevoltage at elementary three phase windings, produce travelling-magnetic-field, this magnetic field is inductive loop on line inductance electromotor secondary 3, the magnetic field interaction of secondary eddy current magnetism and elementary generation produces the tractive force that train advances.Suspending, draw two cover systems power supply control is illustrated in fig. 2 shown below.In this conventional confguration, train suspends, different autonomous systems is adopted in traction, and weak point is: there is resistance in (1) levitating electromagnet 10 coils, have loss behind the galvanization, research and test show that train suspension loss is about the 0.8kw/ ton with the vehicle weight ratio; (2) line inductance electromotor only is used for traction, and during work, the normal direction electromagnetic force of its generation suspends to train and causes interference; In most of the cases, increased the suspension burden; When (3) train steady was with operation, in order to guarantee suspension air gap 8mm, it advanced the line inductance electromotor air gap of usefulness bigger, is 11mm, and motor working efficiency is low, power factor is low; (4) during train operation, guarantee simultaneously to suspend, two kinds of air gaps of traction, improved vehicle and track greatly and made requirement, increased construction cost; (5) two cover autonomous systems are adopted in suspension and traction, complex structure, and equipment increases, and cost increases.
The utility model content
The technical problems to be solved in the utility model just is: at the technical matters that prior art exists, the utility model provide a kind of simple and compact for structure, with low cost, operating principle is easy, control is convenient, the levitation traction integrated system for high-efficiency magnetic-levitation train of good energy-conserving effect.
For solving the problems of the technologies described above, the utility model by the following technical solutions.
A kind of levitation traction integrated system for high-efficiency magnetic-levitation train, it is characterized in that: it comprises levitation traction controller, line inductance electromotor, line inductance electromotor support beam and power supply, described line inductance electromotor comprises that line inductance electromotor is secondary and line inductance electromotor is elementary, described levitation traction controller, line inductance electromotor is elementary and power supply is fixed on the car body, the elementary track below that is positioned at of line inductance electromotor, the secondary tabular that is of described line inductance electromotor is along track laying.
As further improvement of the utility model:
Described line inductance electromotor is for adopting the induction motor of short stator three phase windings, and the common distributed lap winding of the elementary employing of described line inductance electromotor also is provided with auxiliary concentric type distributed winding.
Described line inductance electromotor combines the induction motor of power supply mode for adopting first-harmonic with harmonic wave.
Compared with prior art, advantage of the present utility model just is:
1, the utility model levitation traction integrated system for high-efficiency magnetic-levitation train has reduced the machine operation air gap, has improved motor working efficiency; Remove levitating electromagnet, thereby can reduce the suspension power consumption of train, reached purpose of energy saving;
2, the utility model will suspend, draw unification, reduce train apparatus, reduce train cost and follow-up operation maintenance cost;
3, during the utility model train operation, suspend, two kinds of working gas gaps unifications of traction, reduced train and the requirement of track accuracy of manufacture, more help magnetic-levitation train operation control;
4, the utility model utilizes modern power electronics technology, dexterously harmonic voltage is used for the motor power supply, produces and control the train lift force.
Description of drawings
Fig. 1 is the prior art constructions scheme drawing;
Fig. 2 is a power supply the principle scheme drawing in the prior art;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is a power supply the principle scheme drawing in the utility model;
Fig. 5 is the line scheme drawing that adopts common distributed lap winding in the specific embodiment;
Fig. 6 is the line scheme drawing that adopts auxiliary concentric type distributed winding in the specific embodiment.
Marginal data:
1, levitation traction controller 2, car body
3, line inductance electromotor is secondary 4, line inductance electromotor is elementary
5, line inductance electromotor support beam 6, air bellow
7, bogie truck module 8, steel tie
9, track girder 10, levitating electromagnet
11, air gap sensor 12, suspension controller
The specific embodiment
Below with reference to specific embodiment and Figure of description the utility model is described in further details.
As shown in Figure 3, be levitation traction integrated system for high-efficiency magnetic-levitation train of the present utility model, it comprises levitation traction controller 1, line inductance electromotor, line inductance electromotor support beam 5 and power supply, line inductance electromotor comprises line inductance electromotor elementary 4 and line inductance electromotor secondary 3, levitation traction controller 1, line inductance electromotor elementary 4 and power supply are fixed on the car body 2 and move with train, and line inductance electromotor elementary 4 is positioned at the below of track, and line inductance electromotor elementary 4 supports, fixes by line inductance electromotor support beam 5.Line inductance electromotor secondary 3 is tabular along track laying.Line inductance electromotor is for adopting the induction motor of short stator three phase windings, and this induction motor elementary 4 also is provided with auxiliary concentric type distributed winding except that common distributed lap winding.As shown in Figure 5, be common distributed lap winding line scheme drawing; As shown in Figure 6, be auxiliary concentric type distributed winding line scheme drawing.Can increase the ratio of normal direction suction and tractive force between line inductance electromotor elementary 4 and the line inductance electromotor secondary 3 like this, and guarantee under the different running velocitys, provide train enough suspension suction.Line inductance electromotor is the motor of the special power supply formula that adopts first-harmonic and combine with harmonic wave, the tractive force size of fundamental voltage control motor generation; By applying some particular harmonic voltage, do not influencing under the tractive force size cases, independently control suction size between line inductance electromotor secondary 3 and the line inductance electromotor elementary 4, reach the purpose of train stable suspersion.Wherein by digital means, suspension/traction unification power supply also produces the particular harmonic voltage that this system ensemble needs except that producing fundamental voltage.
During work, when line inductance electromotor elementary 4 passes to fundamental voltage, produce the propulsive force that tractor-trailer train advances; By the control fundamental voltage, can reach the purpose of control tractive force size.When elementary winding passes to fundamental voltage, between line inductance electromotor secondary 3 and line inductance electromotor elementary 4, also can produce the normal direction attractive force, but this normal direction attractive force is controlled by tractive force.The utility model proposes by digital means, apply some particular harmonic voltage at primary winding in addition, reach the purpose that increases and control the normal direction attractive force.As primary winding being applied third harmonic voltage or the three-phase symmetrical alternating current voltage consistent, will can not produce the tractive force of working direction, but can produce the normal direction attractive force between line inductance electromotor elementary 4 and secondary 3 with motor synchronizing speed; And this normal force size is relevant with the particular harmonic voltage swing that is applied.Adopt trapezoidal wave+square-wave frequency modulation method,, can change the harmonic components of electric motor primary winding applied voltage equally by changing square wave and trapezoidal wave amplitude ratio, its 5 times, 7 subharmonic voltages can change equally electric motor primary, secondary between normal direction suction size.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1, a kind of levitation traction integrated system for high-efficiency magnetic-levitation train, it is characterized in that: it comprises levitation traction controller (1), line inductance electromotor, line inductance electromotor support beam (5) and power supply, described line inductance electromotor comprises line inductance electromotor secondary (3) and line inductance electromotor elementary (4), described levitation traction controller (1), line inductance electromotor elementary (4) and power supply are fixed on the car body (2), line inductance electromotor elementary (4) is positioned at the track below, and described line inductance electromotor secondary (3) is tabular along track laying.
2, levitation traction integrated system for high-efficiency magnetic-levitation train according to claim 1, it is characterized in that: described line inductance electromotor is for adopting the induction motor of short stator three phase windings, and described line inductance electromotor elementary (4) adopts common distributed lap winding and is provided with auxiliary concentric type distributed winding.
3, levitation traction integrated system for high-efficiency magnetic-levitation train according to claim 1 is characterized in that: described line inductance electromotor combines the induction motor of power supply mode for adopting first-harmonic with harmonic wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200645877U CN201405852Y (en) | 2009-05-26 | 2009-05-26 | High-efficient suspension and traction integrated system for maglev trains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200645877U CN201405852Y (en) | 2009-05-26 | 2009-05-26 | High-efficient suspension and traction integrated system for maglev trains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201405852Y true CN201405852Y (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200645877U Expired - Fee Related CN201405852Y (en) | 2009-05-26 | 2009-05-26 | High-efficient suspension and traction integrated system for maglev trains |
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| CN (1) | CN201405852Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092306A (en) * | 2011-01-19 | 2011-06-15 | 中国人民解放军国防科学技术大学 | Anti-suspension contact device for maglev train |
| CN103895520A (en) * | 2014-03-26 | 2014-07-02 | 中国人民解放军国防科学技术大学 | Brake control method of linear induction motor for traction |
| CN103612635B (en) * | 2013-11-25 | 2016-05-11 | 莱芜美澳冶金科技有限公司 | The two standby safe operations of a kind of U-rail and the driving energy-saving mechanism that suspends |
| CN108053738A (en) * | 2017-12-15 | 2018-05-18 | 深圳技术大学（筹） | Install the sub- vacuum magnetic suspension supersonic speed train model experiment porch of anti-U-shaped excitation cover additional on existing high-speed railway rail |
| CN108622067A (en) * | 2017-03-23 | 2018-10-09 | 李启飞 | It is pneumatic to be oriented to air cushion suspension track train |
| CN109298647A (en) * | 2018-10-16 | 2019-02-01 | 中国人民解放军国防科技大学 | High-speed maglev train suspension control method based on lap joint structure whole |
| CN112172534A (en) * | 2020-10-15 | 2021-01-05 | 湖南根轨迹智能科技有限公司 | Suspension frame and centralized suspension controller thereof |
-
2009
- 2009-05-26 CN CN2009200645877U patent/CN201405852Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092306A (en) * | 2011-01-19 | 2011-06-15 | 中国人民解放军国防科学技术大学 | Anti-suspension contact device for maglev train |
| CN103612635B (en) * | 2013-11-25 | 2016-05-11 | 莱芜美澳冶金科技有限公司 | The two standby safe operations of a kind of U-rail and the driving energy-saving mechanism that suspends |
| CN103895520A (en) * | 2014-03-26 | 2014-07-02 | 中国人民解放军国防科学技术大学 | Brake control method of linear induction motor for traction |
| CN103895520B (en) * | 2014-03-26 | 2016-07-06 | 中国人民解放军国防科学技术大学 | Line inductance electromotor brake control method is used in a kind of traction |
| CN108622067A (en) * | 2017-03-23 | 2018-10-09 | 李启飞 | It is pneumatic to be oriented to air cushion suspension track train |
| CN108053738A (en) * | 2017-12-15 | 2018-05-18 | 深圳技术大学（筹） | Install the sub- vacuum magnetic suspension supersonic speed train model experiment porch of anti-U-shaped excitation cover additional on existing high-speed railway rail |
| CN109298647A (en) * | 2018-10-16 | 2019-02-01 | 中国人民解放军国防科技大学 | High-speed maglev train suspension control method based on lap joint structure whole |
| CN112172534A (en) * | 2020-10-15 | 2021-01-05 | 湖南根轨迹智能科技有限公司 | Suspension frame and centralized suspension controller thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20130526 |