CN101125531A - Stator segment winding step changing method for magnetic suspension train long stator straight generator - Google Patents
Stator segment winding step changing method for magnetic suspension train long stator straight generator Download PDFInfo
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- CN101125531A CN101125531A CNA2007100437954A CN200710043795A CN101125531A CN 101125531 A CN101125531 A CN 101125531A CN A2007100437954 A CNA2007100437954 A CN A2007100437954A CN 200710043795 A CN200710043795 A CN 200710043795A CN 101125531 A CN101125531 A CN 101125531A
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Abstract
The present invention discloses a method of foot changing of rotor section winding in the long stator linear motion actuator magnetic suspension train. The foot changing method comprises the following steps: 1) three converter units and three groups of feeding cable groups are designed for the winding of the stator section at the two sides of the power supply track; 2) the three stator section winding groups are arranged separately on one of the parallelled track, the three stator sections winding groups on the other track intersected with the aforesaid three stator winding groups, that is, one section of the stator winding group on one track corresponds with each 1/2 section of the two sections of stator winding group on the other track; 3) the current of the A stator section winding is reduced to below zero and the current of the B stator section winding is increased to specified value and the current of the C stator section winding is maintained at the specified current in the process of changing steps. The present invention has the advantages of: energy-saving due to the adoption of the mode of power supply for each stator section, preventing pulse and decreasing of traction force of the train, ensuring the speed gaining capacity of the traction system and increasing the comfortable feeling of passengers.
Description
Technical field
The present invention relates to a kind of stator segment winding method of changing step, particularly a kind of stator segment winding that is used for the long-stator linear motor of magnetic-levitation train method of changing step.
Background technology
The key model of the traction control of magnetic-levitation train is linear electric motors, and linear electric motors are to be developed by rotating machine, rotating machine is cut the back along radial direction launch, and rotating operation has just become straight-line motion.The stator core and the winding of magnetic-levitation train linear synchronous generator are arranged along track section, provide amplitude and frequency all variable power supply by tractive power supply system.In the train travelling process, if simultaneously to track all stator segment energisings along the line, relatively and the length of train vehicle body, the significant wastage of electric energy will be caused, for train, only need the stator segment energising at train place, in order to reduce the wastage as much as possible, improve electrical efficiency, long-stator linear motor adopts the mode of sectional power supply, that is: the stator of linear electric motors along the line is divided into a lot of sections, have only the stator winding of that section of magnetic-levitation train place to switch on, adopt the stator segment method of changing step to control, the method of changing step commonly used is a two-step method, two-step method requires each tractive output module that two converter cells are arranged, feed cable also has two groups, give the power supply of the stator segment of fixing a siding track for every group, when adopting two-step method, in the stator segment handoff procedure, the electric current that at first will make vehicle leave stator segment turn-offs and drops to zero, the current lead-through of the stator segment that entering of vehicle and rising then, as shown in Figure 1, at the breakpoint place of the A of track 1 stator segment and B stator segment, the unexpected oblique line of pulse current descends, oblique line rises again then, causes tractive force to produce pulsation and decline, and it is uncomfortable that the magnetic-levitation train passenger is experienced.
Summary of the invention
Technical matters of the present invention is that a kind of stator segment winding of the magnetic suspension train long stator straight of avoiding tractive force of train pulsation and the descending method of changing step will be provided.
In order to solve above technical matters, the stator segment winding that the invention provides a kind of magnetic suspension train long stator straight method of changing step, this method of changing step comprises the steps:
1) three converter cells of design and three groups of feed cable groups, the stator segment winding of power supply rail both sides;
2) on a parallel track, three stator segment section of windings are arranged, and three stator segment windings on another root track are staggered with it, i.e. one section stator winding on track, respectively 1/2 section of two sections stator winding on corresponding another root track;
3) change step in the process, A stator segment winding current drops to zero, and B stator segment winding current rises to the electric current given value, and it is constant that C stator segment winding current is kept the electric current given value.
In the process of changing step, when electric current descended in one group of winding, oblique line descended; When electric current rose in another group winding, oblique line rose.
Superior effect of the present invention is:
1) is the pattern of stator segment sectional power supply owing to what adopt, thereby saved electric energy in a large number;
2) pulsation and the decline of tractive force of train have been avoided;
3) acceleration capacity of assurance traction system;
4) comfort of increase train passenger.
Description of drawings
Fig. 1 is the change of current scheme drawing of present two-step method;
Fig. 2 is a change of current scheme drawing of the present invention.
The number in the figure explanation
1-track 1; 2-track 2;
The 3-breakpoint;
The 11-A winding current; The 12-B winding current;
The 13-C winding current.
The specific embodiment
See also shown in the accompanying drawing, the invention will be further described.
Shown in Fig. 2 change of current scheme drawing of the present invention, the stator segment winding that the invention provides a kind of magnetic suspension train long stator straight method of changing step, this method of changing step comprises the steps:
1) three converter cells of design and three groups of feed cable groups, the stator segment winding of power supply rail both sides;
2) on a parallel 1-track 1, three stator segment winding A, B, C segmentations are arranged, three stator segment windings on another root 2-track 2 are staggered with it, i.e. a stator segment winding C on track, two stator segment A windings on corresponding another root 2-track, B winding each 1/2 section;
3) change step in the process, A stator segment winding current drops to zero, and B stator segment winding current rises to the electric current given value, and it is constant that C stator segment winding current is kept the electric current given value.
In the process of changing step, when electric current 11 descended in one group of winding, oblique line descended; When electric current 12 rose in another group winding, oblique line rose.
1-track 1 is before A stator segment winding cuts off, B stator segment winding current 12 has begun to rise, after B stator segment winding current 12 rose to the electric current given value, A stator segment winding current 11 just dropped to 0, and the effect of both stacks makes the pulsation of stator segment winding current not obvious.Like this, in the process of changing step, avoided train in the stator segment handoff procedure, can produce the pulsation and the decline of tractive force, thereby guaranteed the acceleration capacity of traction system and the comfort of train passenger.
Claims (2)
1. the stator segment winding of the magnetic suspension train long stator straight method of changing step, it is characterized in that: this method of changing step comprises the steps:
1) three converter cells of design and three groups of feed cable groups, the stator segment winding of power supply rail both sides;
2) on a parallel track, three stator segment section of windings are arranged, and three stator segment windings on another root track are staggered with it, i.e. one section stator winding on track, respectively 1/2 section of two sections stator winding on corresponding another root track;
3) change step in the process, A stator segment winding current drops to zero, and B stator segment winding current rises to the electric current given value, and it is constant that C stator segment winding current is kept the electric current given value.
2. by the stator segment winding of the described a kind of magnetic suspension train long stator straight of claim 1 method of changing step, it is characterized in that: in the process of changing step, when electric current descended in one group of winding, oblique line descended; When electric current rose in another group winding, oblique line rose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100437954A CN101125531A (en) | 2007-07-13 | 2007-07-13 | Stator segment winding step changing method for magnetic suspension train long stator straight generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100437954A CN101125531A (en) | 2007-07-13 | 2007-07-13 | Stator segment winding step changing method for magnetic suspension train long stator straight generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101125531A true CN101125531A (en) | 2008-02-20 |
Family
ID=39093689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100437954A Withdrawn CN101125531A (en) | 2007-07-13 | 2007-07-13 | Stator segment winding step changing method for magnetic suspension train long stator straight generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101125531A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161034A (en) * | 2017-05-31 | 2017-09-15 | 中车株洲电力机车有限公司 | A kind of electric power system of magnetic suspension train |
| CN110401379A (en) * | 2018-04-23 | 2019-11-01 | 中车株洲电力机车研究所有限公司 | A kind of magnetic floating traffic changes step control system and changes step control method |
| CN112849169A (en) * | 2019-11-27 | 2021-05-28 | 株洲中车时代电气股份有限公司 | Step changing control method, device and system for stator section of long-stator linear motor |
| CN112953121A (en) * | 2021-02-24 | 2021-06-11 | 同济大学 | Stator power supply method for long-stator linear motor |
-
2007
- 2007-07-13 CN CNA2007100437954A patent/CN101125531A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161034A (en) * | 2017-05-31 | 2017-09-15 | 中车株洲电力机车有限公司 | A kind of electric power system of magnetic suspension train |
| CN107161034B (en) * | 2017-05-31 | 2019-03-29 | 中车株洲电力机车有限公司 | A kind of power supply system of magnetic suspension train |
| CN110401379A (en) * | 2018-04-23 | 2019-11-01 | 中车株洲电力机车研究所有限公司 | A kind of magnetic floating traffic changes step control system and changes step control method |
| CN112849169A (en) * | 2019-11-27 | 2021-05-28 | 株洲中车时代电气股份有限公司 | Step changing control method, device and system for stator section of long-stator linear motor |
| CN112953121A (en) * | 2021-02-24 | 2021-06-11 | 同济大学 | Stator power supply method for long-stator linear motor |
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| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |