CN104052234B - A kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types - Google Patents
A kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types Download PDFInfo
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- CN104052234B CN104052234B CN201410255689.2A CN201410255689A CN104052234B CN 104052234 B CN104052234 B CN 104052234B CN 201410255689 A CN201410255689 A CN 201410255689A CN 104052234 B CN104052234 B CN 104052234B
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Abstract
The invention discloses a kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, comprise track ring, mover ring and back shaft, described track ring is made up of discoid elementary iron core and discoid winding, described elementary iron core is rearranged vertically by identical accurate E font iron core, the tooth that described adjacent accurate E font iron core is close together forms fault-tolerant teeth, described winding adopts concentratred winding, described winding is coiled into and is discoidly embedded in accurate E font iron core slot, described mover ring comprises permanent magnet, described mover ring is arranged on back shaft.The reliability that invention increases actuator and the ability operated with failure, achieve physical isolation between phase and phase and magnetic circuit decoupling zero.Actuator fault-tolerant operation can be made, improve the heat dispersion of winding.Reduce the eddy current loss on iron core.
Description
Technical field
The present invention relates to a kind of electromagnetic vehicle suspension field, be specifically related to a kind of electromagnetic suspension and drive by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types.
Background technology
Existing electromagnetic vehicle suspension drive motors generally adopts electric rotating machine and linear electric motors two kinds.Electric rotating machine need drive suspension by rack-and-pinion or ball lead screw drive mechanism, and straight-line electric function Direct driver suspension, does not need intermediate transmission mechanism, has that fast response time, efficiency are high, control precision advantages of higher.Therefore, compare electric rotating machine, linear electric motors have more advantage in electromagnetic suspension.Although line inductance electromotor has the advantage such as low cost, high reliability, there is efficiency and the unfavorable factor such as power factor is lower.Cylindrical linear magneto has zero clean radial load between armature and stator, without advantages such as winding overhang, high power density/pushing force density, high efficiency, excellent servo performances, is applicable to electromagnetic suspension and uses.
Mention use multi-phase permanent synchronous linear generator as the energy feed system of suspension although granted patent number is 200410013577.2 patents of invention " vehicle suspension feedback type electromagnetic vibration control device ", do not consider the fault freedom of motor body.The number of applying for a patent is the fault freedom that 201410018433.X patent of invention " a kind of vehicle suspension electromagnetic damping vibration absorber " considers permanent-magnetism linear motor body, but the general storage battery installing 12V or 24V on current automobile; On car, electromagnetic suspension generally needs actuator to provide the peak value thrust of 2.5kN, and pushing force density is higher; In addition, if motor thrust calculation is large, suspension can be caused to buffet.Compare three phase electric machine, polyphase machine has the advantages such as reliability is high, torque pulsation is little, power output is large, is more suitable for low-voltage power supply occasion.
Summary of the invention
Characteristic according to electromagnetic vehicle suspension and the performance requirement to drive motors, for problems of the prior art, the invention provides that a kind of pushing force density is large, thrust calculation is little, magnetic between phase and phase, thermal coupling is little, fault freedom is high, stator eddy current loss is little and the electromagnetic vehicle suspension that winding thermal diffusivity is good drives linear actuator.
For achieving the above object, the present invention adopts following technical scheme: a kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, comprise track ring, mover ring and back shaft, described track ring is made up of discoid elementary iron core and discoid winding, described elementary iron core is rearranged vertically by identical accurate E font iron core, the tooth that described adjacent accurate E font iron core is close together forms fault-tolerant teeth, described winding adopts concentratred winding, described winding is coiled into and is discoidly embedded in accurate E font iron core slot, described mover ring comprises permanent magnet, described mover ring is arranged on back shaft.
Described permanent magnet is as the criterion Halbach array permanent magnet, and the magnetic field of described accurate Halbach array permanent magnet forms loop through elementary iron core.
Described back shaft is non-magnetic steel pipe or Carbon Steel Pipes.
Described accurate E font iron core disk is made up of the accurate E font segmental core of at least four area equation, described accurate E font segmental core is made up of an I-shaped segmental core and two L-shaped segmental core, and described I-shaped segmental core is positioned in the middle of two L-shaped segmental core.
Described track ring is made up of electrician's iron or soft magnetic material permalloy.
The fault-tolerant permanent-magnet linear actuator of described five phase cylinder type, adopt Vector Decoupled Control, pulse width modulation (PWM) adopts Carrier-based PWM technology to send out ripple.
After adopting technique scheme, the present invention has following beneficial effect: 1. electromagnetic vehicle suspension drive ram itself is due to the existence of fault-tolerant teeth, make actuator magnetic circuit between phase and phase separate, very little on the impact of other phase winding when certain phase winding fault, the reliability that improve actuator and the ability operated with failure, achieve physical isolation between phase and phase and magnetic circuit decoupling zero.
2. adopt five phase actuator, improve actuator pushing force density, reduce the pulsation of actuator thrust output, inhibit the harmonic current on actuator system bus, reduce bus Support Capacitor capacitance.When actuator fault, coordinate suitable control strategy, actuator fault-tolerant operation can be made, improve the reliability of actuator system.
3. stator core adopts cooperation that is I-shaped and L-shaped, is convenient to the installation of winding on the one hand, adds winding and contact area unshakable in one's determination on the other hand, improves the heat dispersion of winding.
4. stator core annulus adopts the fan-shaped combination of multi-disc, reduces the eddy current loss on iron core.
Accompanying drawing explanation
Fig. 1 is that a kind of electromagnetic vehicle suspension of the present invention drives with five phase cylinder types fault-tolerant permanent-magnet linear actuator configurations schematic diagram.
Fig. 2 is that a kind of electromagnetic vehicle suspension of the present invention drives with five phase cylinder types fault-tolerant permanent-magnet linear actuator axial cross-sectional views.
Fig. 3 is accurate E font core structure schematic diagram of the present invention.
Fig. 4 is accurate E font sector structure schematic diagram of the present invention.
In figure: 1, track ring; 1-1, elementary iron core; 1-2, winding; 2, mover ring; 2-1, accurate Halbach array permanent magnet; 3, back shaft; 4, accurate E font iron core; 4-1, accurate E font segmental core; 4-1-1, I-shaped segmental core; 4-1-2, L-shaped segmental core; 5, fault-tolerant teeth.
Embodiment
According to Figure of description and specific embodiment, the present invention is further explained below.
For a fault-tolerant permanent-magnet linear actuator of five phase cylinder types, as depicted in figs. 1 and 2, a kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, comprise track ring 1, mover ring 2 and back shaft 3, described track ring 1 is made up of discoid elementary iron core 1-1 and discoid winding 1-2, described elementary iron core 1-1 is rearranged vertically by 10 identical accurate E font iron cores 4, the tooth that described adjacent accurate E font iron core 4 is close together forms fault-tolerant teeth 5, described winding 1-2 adopts concentratred winding, described winding 1-2 is coiled into and is discoidly embedded in accurate E font iron core 4 groove, described mover ring 2 comprises permanent magnet, described mover ring 2 is arranged on back shaft 3.
Described permanent magnet is as the criterion Halbach array permanent magnet 2-1, mover ring 2 has multiple accurate Halbach array permanent magnet 2-1 to form, the accurate Halbach array permanent magnet 2-1 being positioned at track ring 1 has 9, permanent magnet material is Ru-Fe-Mn, the magnetizing direction of 4 permanent-magnetic clamps in each accurate Halbach array permanent magnet 2-1, as shown in Figure 2, be from left to right followed successively by:, radially outward, be radially directed towards the center of circle axially left axially to the right; The magnetic field of described accurate Halbach array permanent magnet 2-1 forms loop through elementary iron core 1-1.
Described back shaft 3 is non-magnetic steel pipe or Carbon Steel Pipes.
Described permanent-magnet linear actuator is the sinusoidal wave actuator of the brushless actuator of five phase DC or five cross streams.
As shown in Figure 3, the accurate E font segmental core 4-1 that described accurate E font iron core 4 disk is 45 degree by 8 pieces of angles of area equation forms, as shown in Figure 4, described accurate E font segmental core 4-1 is made up of an an I-shaped segmental core 4-1-1 and two L-shaped segmental core 4-1-2, and described I-shaped segmental core 4-1-1 is positioned in the middle of two L-shaped segmental core 4-1-2.
Described track ring 1 is made up of electrician's iron or soft magnetic material permalloy.
The fault-tolerant permanent-magnet linear actuator of described five phase cylinder type, adopt Vector Decoupled Control, pulse width modulation (PWM) adopts Carrier-based PWM technology to send out ripple, is easy to carry out faults-tolerant control, improves actuator reliability.
Claims (5)
1. an electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, comprise track ring, mover ring and back shaft, it is characterized in that described track ring is made up of discoid elementary iron core and discoid winding, described elementary iron core is rearranged vertically by identical accurate E font iron core, the accurate E font segmental core that described accurate E font iron core disk is 45 degree by 8 pieces of angles of area equation forms, described accurate E font segmental core is made up of an I-shaped segmental core and two L-shaped segmental core, described I-shaped segmental core is positioned in the middle of two L-shaped segmental core, the adjacent tooth be close together of described accurate E font iron core forms fault-tolerant teeth, described winding adopts concentratred winding, described winding is coiled into and is discoidly embedded in accurate E font iron core slot, described mover ring comprises permanent magnet, described mover ring is arranged on back shaft.
2. a kind of electromagnetic vehicle suspension according to claim 1 drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, it is characterized in that described permanent magnet is as the criterion Halbach array permanent magnet, the magnetic field of described accurate Halbach array permanent magnet forms loop through elementary iron core.
3. a kind of electromagnetic vehicle suspension according to claim 1 drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, it is characterized in that described back shaft is non-magnetic steel pipe or Carbon Steel Pipes.
4. a kind of electromagnetic vehicle suspension according to claim 1 drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, it is characterized in that described track ring is made up of electrician's iron or soft magnetic material permalloy.
5. a kind of electromagnetic vehicle suspension according to claim 1-4 any one drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types, it is characterized in that the described fault-tolerant permanent-magnet linear actuator of five phase cylinder types, adopt Vector Decoupled Control, pulse width modulation adopts Carrier-based PWM technology to send out ripple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255689.2A CN104052234B (en) | 2014-06-10 | 2014-06-10 | A kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410255689.2A CN104052234B (en) | 2014-06-10 | 2014-06-10 | A kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types |
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| CN104052234A CN104052234A (en) | 2014-09-17 |
| CN104052234B true CN104052234B (en) | 2016-04-27 |
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| CN201410255689.2A Expired - Fee Related CN104052234B (en) | 2014-06-10 | 2014-06-10 | A kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104393737B (en) * | 2014-11-24 | 2018-08-10 | 北京航空航天大学 | Linear vibration motor |
| CN104723818B (en) * | 2015-01-29 | 2017-02-01 | 重庆大学 | Linear motor shock absorber used for automobile in-wheel active suspension |
| CN104779769A (en) * | 2015-04-03 | 2015-07-15 | 清华大学 | Moving-iron permanent magnet linear motor |
| CN104767351B (en) * | 2015-04-29 | 2019-12-10 | 哈尔滨工业大学 | Highly modularized flat plate type multiphase permanent magnet linear motor |
| CN104767353B (en) * | 2015-04-29 | 2018-12-14 | 哈尔滨工业大学 | The cylinder type multi-phase permanent linear motor of high modularization |
| CN104767350B (en) * | 2015-04-29 | 2018-11-02 | 哈尔滨工业大学 | Modularization cylinder type multi-phase permanent linear motor based on single two-layer hybrid winding |
| CN105207446B (en) * | 2015-10-14 | 2018-10-09 | 江苏大学 | A kind of fault-tolerant cylindrical linear motor of embedded mixing magnetic material |
| WO2017063242A1 (en) * | 2015-10-14 | 2017-04-20 | 江苏大学 | Interior composite magnetic material fault-tolerant tubular linear motor, and short-circuit fault-tolerant vector control method thereof |
| CN108809042A (en) * | 2017-04-26 | 2018-11-13 | 陈启星 | Linear motor based on radial magnetic tube |
| CN110581634A (en) * | 2019-10-21 | 2019-12-17 | 重庆交通大学 | Spiral permanent magnet electromagnetic actuator |
| CN111230065A (en) * | 2020-03-19 | 2020-06-05 | 燕山大学 | Electromagnetic driven vacuum die casting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635499A (en) * | 2008-07-25 | 2010-01-27 | 日立汽车系统株式会社 | Circular-shaped linear synchronous motor, electromagnetic suspension and motor-driven steering device using the same |
| CN102938603A (en) * | 2012-11-26 | 2013-02-20 | 江苏大学 | Cylindrical permanent-magnet linear motor with modular C-shaped stator cores |
| CN203537200U (en) * | 2013-09-27 | 2014-04-09 | 江苏大学 | Double-stator cylindrical linear motor of magnetic circuit series-connection type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8604647B2 (en) * | 2011-03-21 | 2013-12-10 | Automotive Research & Testing Center | Linear actuating device for vehicle use |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635499A (en) * | 2008-07-25 | 2010-01-27 | 日立汽车系统株式会社 | Circular-shaped linear synchronous motor, electromagnetic suspension and motor-driven steering device using the same |
| CN102938603A (en) * | 2012-11-26 | 2013-02-20 | 江苏大学 | Cylindrical permanent-magnet linear motor with modular C-shaped stator cores |
| CN203537200U (en) * | 2013-09-27 | 2014-04-09 | 江苏大学 | Double-stator cylindrical linear motor of magnetic circuit series-connection type |
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