CN101170272A - Long stroke constant acceleration line electromotor and its control method - Google Patents
Long stroke constant acceleration line electromotor and its control method Download PDFInfo
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- CN101170272A CN101170272A CNA2007101446310A CN200710144631A CN101170272A CN 101170272 A CN101170272 A CN 101170272A CN A2007101446310 A CNA2007101446310 A CN A2007101446310A CN 200710144631 A CN200710144631 A CN 200710144631A CN 101170272 A CN101170272 A CN 101170272A
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Abstract
A long-stroke constant acceleration straight-line motor as well as a relevant control method, relates to the field of motors and control thereof. The invention resolves the problem in the prior constant acceleration straight line motors that the primary coil current is difficult to be controlled in the low speed section. The invention comprises a stator and a mover; wherein, the stator comprises a primary iron core and a primary coil; the motor is in a long-primary and short-secondary structure; the primary iron core and the primary coil in the stator is divided into a plurality of segments in the movement direction; each segment is also separated into a plurality of stages, and each stage is a separate unit; the separate unit can be controlled separately; the slot number, the tooth shape and the dimensions of primary iron cores in each stage are identical in each segment; total cross section area of conductors of the primary coil in each slot is the same; in adjacent segments in the movement acceleration direction of the mover, the number of serial connection turns of each phase of the primary coil increases successively; but the cross section area of the coil conductor decreases successively. The inventive motor structure can also lower power consumption, capacity and cost of driving systems, and improve the efficiency and the reliability thereof.
Description
Technical field
The present invention relates to a kind of long stroke constant and decide the linear electric motors and the control method thereof of acceleration operation, belong to machine field.
Background technology
The linear electric motors comparison typical application that long stroke constant is decided acceleration operation has the train (subway train, high-speed maglev train) of linear motor driving, the occasions such as electromagnetic launch of carrier ship-board aircraft.Train generally needs the control train to quicken or deceleration with constant acceleration when setting off or entering the station; And ship-board aircraft adopts the electromagnetic launch device when warship takes off, and also needs to apply a constant thrust (acceleration) to aircraft.In order to improve propulsive efficiency, the linear electric motors that these occasions are used adopt elementary (armature) fixing, moving secondary structure usually, and the elementary plurality of sections that is divided into, and each section all adopts a driver to control respectively.If the structure of elementary each section is identical, in order to obtain constant thrust, need the output current of each driver also identical, this can increase the cost of whole drive system undoubtedly, and because when motor has just begun the starting acceleration, because speed is low, the back-emf in the winding is little, and winding current is restive.
Summary of the invention
For the restive problem of the primary winding current that solves the low speed segment that exists in the existing constant acceleration line electromotor, the invention provides a kind of long stroke constant acceleration line electromotor and control method thereof.
Long stroke constant acceleration line electromotor of the present invention comprises stator 2 and mover 1, stator 2 comprises elementary iron core and elementary winding, described motor is for long elementary, short secondary structure, elementary iron core and elementary winding in the described stator 2 are divided into more piece along the direction of motion, be divided into multistage again in each joint, each section is a separate unit, described separate unit can be controlled separately, the elementary core slots number of each section in each joint, profile of tooth is all identical with size, the conductor total sectional area of coil is identical in each groove, increases progressively successively along every phase winding turns-in-series in adjacent each joint of acceleration of motion direction of mover 1, the winding conductor sectional area successively decreases successively.
The control method of long stroke constant acceleration line electromotor, every joint winding individual drive in the stator 2, and the number of ampere turns of winding conductor is all identical in every groove, and each section winding in the low speed joint adopts little current drives, and each section winding in saving at a high speed adopts big current drives.
Motor of the present invention is under the prerequisite that every groove inner wire total sectional area equates in the armature of stator, be divided into some joints by low speed segment to high regime, the coil turns-in-series of every phase reduces gradually in each joint, the motor of this spline structure, in control, every joint adopts a controller, in order to ensure to the constant propulsion of mover, need to guarantee that the number of ampere turns of each section is identical, can adopt little current drives at low speed segment because the number of turn of coil windings is many, the back-emf and the inductance of low speed segment have also been improved simultaneously, make the easier control of electric current of low speed segment, along with the raising of the mover speed of service, each output current that saves controller increases gradually, this control method has reduced the overall power of motor driven systems, capacity and cost.
Description of drawings
Fig. 1 is the structural representation of long stroke constant acceleration line electromotor of the present invention, and Fig. 2 realizes long stroke constant acceleration line electromotor of the present invention and control system connection diagram.
Embodiment
Embodiment one: long stroke constant acceleration line electromotor, comprise stator 2 and mover 1, stator 2 comprises elementary iron core and elementary winding, described motor is for long elementary, short secondary structure, the elementary iron core and the elementary winding of described stator 2 are divided into more piece along the direction of motion, be divided into multistage again in each joint, each section is a separate unit, described separate unit can be controlled separately, the groove number of the elementary iron core of each section in each joint, profile of tooth is all identical with size, the conductor total sectional area of the elementary winding in each groove is identical, increases progressively successively along every mutually elementary windings in series number of turn in adjacent each joint of acceleration of motion direction of mover 1, the winding conductor sectional area successively decreases successively.
The elementary winding of the stator 2 of the motor in the present embodiment is a polyphase windings, and electric machine structure can be single-side structural or bilateral structure.
Structure described in the present embodiment is applicable to line inductance electromotor or linear permanent magnet synchronous motor or linear reluctance motor.
The control method of the described long stroke constant acceleration line electromotor of present embodiment is, every joint winding individual drive in the stator 2, and the number of ampere turns of winding conductor is all identical in every groove, each section winding in the low speed joint adopts little current drives, and each section winding in saving at a high speed adopts big current drives.
Claims (5)
1. long stroke constant acceleration line electromotor, comprise stator (2) and mover (1), stator (2) comprises elementary iron core and elementary winding, described motor is for long elementary, short secondary structure, the elementary iron core and the elementary winding of described stator (2) are divided into more piece along the direction of motion, be divided into multistage again in each joint, each section is a separate unit, described separate unit can be controlled separately, the groove number of the elementary iron core of each section in each joint, profile of tooth is all identical with size, the conductor total sectional area of the elementary winding in each groove is identical, increases progressively successively along every mutually elementary windings in series number of turn in adjacent each joint of acceleration of motion direction of mover (1), the winding conductor sectional area successively decreases successively.
2. a kind of long stroke constant acceleration line electromotor according to claim 1 is characterized in that, the elementary winding in the described stator (2) is a polyphase windings.
3. a kind of long stroke constant acceleration line electromotor according to claim 1 is characterized in that described motor is single-side structural or bilateral structure.
4. a kind of long stroke constant acceleration line electromotor according to claim 1 is characterized in that described motor is line inductance electromotor or linear permanent magnet synchronous motor or linear reluctance motor.
5. the control method of the described long stroke constant acceleration line electromotor of the arbitrary claim of claim 1 to 4, it is characterized in that the every joint winding individual drive in the stator (2), and the number of ampere turns of winding conductor is all identical in every groove, each section winding in the low speed joint adopts little current drives, and each section winding in saving at a high speed adopts big current drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101446310A CN100566096C (en) | 2007-11-19 | 2007-11-19 | Long stroke constant acceleration line electromotor and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101446310A CN100566096C (en) | 2007-11-19 | 2007-11-19 | Long stroke constant acceleration line electromotor and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101170272A true CN101170272A (en) | 2008-04-30 |
| CN100566096C CN100566096C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101446310A Active CN100566096C (en) | 2007-11-19 | 2007-11-19 | Long stroke constant acceleration line electromotor and control method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777821A (en) * | 2010-04-12 | 2010-07-14 | 哈尔滨工业大学 | Concentrated-winding multi-segment permanent magnet synchronous linear motor |
| WO2011076069A1 (en) * | 2009-12-24 | 2011-06-30 | 清华大学 | Power drive distribution method for coil array of moving-iron type linear motor |
| CN103227551A (en) * | 2013-04-01 | 2013-07-31 | 南京航空航天大学 | Permanent magnetic straight line synchronous motor capable of turning, curve system and rail car |
| CN108286385A (en) * | 2018-01-31 | 2018-07-17 | 中山市欧派克五金制品有限公司 | A kind of sliding door structure of the linear motion actuator and its installation method |
| CN108418386A (en) * | 2018-03-21 | 2018-08-17 | 哈尔滨工业大学 | High-power linear electromagnetic acceleration system |
| CN108616207A (en) * | 2018-05-09 | 2018-10-02 | 同济大学 | A kind of long-stator linear motor winding for rail traffic |
| CN109802536A (en) * | 2017-11-17 | 2019-05-24 | 施耐德电器工业公司 | Linear induction motor system |
| CN111106732A (en) * | 2018-10-25 | 2020-05-05 | 中车株洲电力机车研究所有限公司 | Linear motor and primary winding thereof |
| CN114759759A (en) * | 2022-04-19 | 2022-07-15 | 哈尔滨工业大学 | Dynamic armature segmented permanent magnet synchronous linear motor and drive control method |
-
2007
- 2007-11-19 CN CNB2007101446310A patent/CN100566096C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076069A1 (en) * | 2009-12-24 | 2011-06-30 | 清华大学 | Power drive distribution method for coil array of moving-iron type linear motor |
| CN101719712B (en) * | 2009-12-24 | 2011-10-26 | 清华大学 | Moving-iron type linear motor coil array power-driven allocation method |
| CN101777821A (en) * | 2010-04-12 | 2010-07-14 | 哈尔滨工业大学 | Concentrated-winding multi-segment permanent magnet synchronous linear motor |
| CN103227551A (en) * | 2013-04-01 | 2013-07-31 | 南京航空航天大学 | Permanent magnetic straight line synchronous motor capable of turning, curve system and rail car |
| CN109802536A (en) * | 2017-11-17 | 2019-05-24 | 施耐德电器工业公司 | Linear induction motor system |
| CN108286385A (en) * | 2018-01-31 | 2018-07-17 | 中山市欧派克五金制品有限公司 | A kind of sliding door structure of the linear motion actuator and its installation method |
| CN108286385B (en) * | 2018-01-31 | 2023-10-20 | 中山市欧派克五金制品有限公司 | Linear motor structure for sliding door and installation method thereof |
| CN108418386A (en) * | 2018-03-21 | 2018-08-17 | 哈尔滨工业大学 | High-power linear electromagnetic acceleration system |
| CN108616207A (en) * | 2018-05-09 | 2018-10-02 | 同济大学 | A kind of long-stator linear motor winding for rail traffic |
| CN111106732A (en) * | 2018-10-25 | 2020-05-05 | 中车株洲电力机车研究所有限公司 | Linear motor and primary winding thereof |
| CN114759759A (en) * | 2022-04-19 | 2022-07-15 | 哈尔滨工业大学 | Dynamic armature segmented permanent magnet synchronous linear motor and drive control method |
| CN114759759B (en) * | 2022-04-19 | 2023-02-07 | 哈尔滨工业大学 | Dynamic armature segmented permanent magnet synchronous linear motor and drive control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100566096C (en) | 2009-12-02 |
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