CN104600881B - Motor for directly driving electric drum - Google Patents
Motor for directly driving electric drum Download PDFInfo
- Publication number
- CN104600881B CN104600881B CN201510010867.XA CN201510010867A CN104600881B CN 104600881 B CN104600881 B CN 104600881B CN 201510010867 A CN201510010867 A CN 201510010867A CN 104600881 B CN104600881 B CN 104600881B
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- Prior art keywords
- motor
- coil
- phase coil
- rotor
- phase
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- 238000004804 winding Methods 0.000 claims abstract description 30
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 238000000034 method Methods 0.000 description 11
- 230000005284 excitation Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000002583 cell-derived microparticle Anatomy 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 electric power Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention provides a motor for directly driving an electric drum. The motor for directly driving the electric drum comprises a stator iron core, a rotor iron core, a drum wall, an exciting winding, an armature winding, a shaft and the like. The motor for directly driving the electric drum is of an outer rotor structure. The outer side of the rotor iron core and the drum wall are fixed together. When the stator pole number of the motor for directly driving the electric drum is 6N and the rotor pole number of the motor for directly driving the electric drum is 7N, a pole arc coefficient of a stator of the motor for directly driving the electric drum is 0.333, and a pole arc coefficient of a rotor of the motor for directly driving the electric drum is 0.5. When the stator pole number of the motor for directly driving the electric drum is 6N and the rotor pole number of the motor for directly driving the electric drum is 5N, the pole arc coefficient of the stator of the motor for directly driving the electric drum is 0.4, and the pole arc coefficient of the rotor of the motor for directly driving the electric drum is 0.5. The motor for directly driving the electric drum is provided with a six phase winding, and phase angle difference of the six phase winding is 60 electrical degrees. The six phase winding is divided into two channels which are isolated from each other, and when one phase or one channel of the six phase winding breaks down, the other channel can run in fault tolerant mode, and accordingly reliability of a system is improved, and the motor for directly driving the electric drum can be used to directly drive the drum.
Description
Technical field
The present invention relates to a kind of straight drive motorized pulleys motor, belong to specific type of electric machine technical field.
Background technology
The motorized pulleys being applied to the industries such as metallurgy, mine, coal, building materials, electric power, chemical industry are ribbon conveyer and lifting
Transmit the critical piece of power Deng equipment, if motorized pulleys break down, it will cause serious economic loss.
Conventional electric cylinder adopts motor inner rotor core mostly, through gear reduction unit, power is transferred to cylinder ectosome
On, this kind of drive leads to machine volume to be difficult to reduce, and high-speed electric expreess locomotive and multiple stage gear reduction device running noises are big, cylinder domestic demand
Install lubricating oil additional, and long-play will produce amount of heat, accelerate the abrasion of mechanical devices.Direct drive electric cylinder makes electricity
Machine directly drives the outer rotor of cylinder, need not arrange gear reduction unit, can achieve the rotation of motorized pulleys using an axle, no
Only can solve the above problems, and be conducive to improving transmission efficiency and reliability, reduce rotational noise and volume weight, save
Production cost.
In existing technology, motorized pulleys can be using direct current generator, asynchronous machine or magneto.But unidirectional current
The carbon brush slip-ring structure that machine carries is not suitable for using in high-risk mine；During starting asynchronous motor, electric current is big and torque relatively
Low；There is certain big armature supply demagnetization problem in the permanent magnet of magneto, have impact on the reliability service of magneto.
The patent authorizing: a kind of built-in type motorized pulleys of doubly-salient brushless motor direct drive, the patent No.:
201320170980.0, disclose a kind of built-in type motorized pulleys that rotor outer periphery wall is connected as one with barrel inwall.
In order to improve the reliability of this motorized pulleys further, a kind of new motor should be proposed so as to certain fault is occurring
When remain to fault-tolerant operation.
Have the research report of four phases, five phase electric excitation biconvex electrode electric machines at present, also have six-phase permanent-magnet motor, six mutually sense
The research report of motor, but do not retrieve the research report with regard to six phase double salient-pole electric machines so far, this is because traditional method
Six phase double salient-pole electric machines of design have serious each phase unsymmetry.It is thus desirable to propose a kind of new winding collocation method with
Realize the symmetrical of each phase.
Content of the invention
Technical problem to be solved:
It is contemplated that proposing a kind of straight drive motorized pulleys motor, provide more reliable electric energy output for load.
Technical scheme:
In order to realize function above, the invention provides a kind of straight drive motorized pulleys motor, including stator, rotor, rolling
Barrel, Exciting Windings for Transverse Differential Protection, armature winding and axle, described motor is outer-rotor structure, and stator and rotor adopt salient pole type structure；Described
Fix with cylinder wall outside rotor, stator be fixed on axle it is characterised in that:
Described motor stator number of poles is 6n, and n is natural number；Rotor pole arc coefficient is 0.5；
Armature coil and magnet exciting coil are designed with each stator poles, described armature coil is than magnet exciting coil closer to cylindrical
Week；
Armature coil is divided into a phase coil, b phase coil, c phase coil, d phase coil, e phase coil and g phase coil, each stator
It is sequentially provided with a phase armature coil on extremely, circulate n time, and the coiling of adjacent armatures coil is in opposite direction；
Described magnet exciting coil has the identical number of turn, and the coiling of adjacent magnet exciting coil is in opposite direction；
One end of a phase coil, c phase coil and e phase coil is connected together as the first neutral point, a phase coil, c phase line
The other end of circle and e phase coil connects three brachium pontis midpoints of the first bridge converter respectively；By b phase coil, d phase coil and g phase
One end of coil is connected together as the second neutral point, and the other end of b phase coil, d phase coil and g phase coil connects the second bridge respectively
Three brachium pontis midpoints of formula changer, form two independent passages.
The stator poles of this motor are 6n, and the pole embrace of stator is 0.333, and rotor number of poles is 7n, rotor pole arc coefficient
It is natural number for 0.5, n；
The stator poles of this motor are 6n, and the pole embrace of stator is 0.4, and rotor number of poles is 5n, and rotor pole arc coefficient is
0.5, n is natural number.
Beneficial effect:
1st, the motor of the present invention has outer-rotor structure, fixes with cylinder wall outside its rotor, directly drives during rotor rotation
Dynamic cylinder；
2nd, electric excitation biconvex electrode electric machine rotor no winding and permanent magnet, therefore rotor structure are simple, reliable operation；
3rd, the motor of the present invention has six phase windings, and six phase windings have been divided into two passages being mutually isolated, when wherein
One when mutually breaking down, and another one passage can normally run.If now the passage that fault phase is located is utilized fault-tolerant change
If parallel operation carries out faults-tolerant control, system can have five phase windings to work on, and improves the reliability of system；
4th, winding collocation method proposed by the present invention can realize the symmetrical of each phase winding of six phase electric excitation biconvex electrode electric machines；
5th, while ensureing counter potential waveform, its stator tooth is narrower, can place more winding for this motor, to reduce
The copper loss of motor.
Brief description
The present invention is further described with reference to the accompanying drawings and examples:
Fig. 1 is a kind of straight drive motorized pulleys motor structural representation that the present invention provides；
Fig. 2 is a kind of straight drive motorized pulleys high reliability motor structural representation that the present invention provides；
Fig. 3 is armature coil and magnet exciting coil each winding technique method in the present invention；
Fig. 4 is the circuit connection diagram of winding and changer in the present invention；
Fig. 5 is the three-phase brushless dc motor control method that motor of the present invention adopts 120 ° of electrical angles of two differences.
Wherein, 1, rotor core, 2, stator core, 3, magnet exciting coil, 4, a phase coil, 5, b phase coil, 6, c phase coil,
7th, d phase coil, 8, e phase coil, 9, g phase coil, 10, cylinder wall；
A, b, c, d, e and g represent a phase coil, b phase coil, c phase coil, d phase coil, e phase coil and g phase coil respectively,
F represents Exciting Windings for Transverse Differential Protection.
Specific embodiment
The present invention provides a kind of straight drive motorized pulleys motor, for making the purpose of the present invention, technical scheme and effect more
Clear, clearly, and referring to the drawings and give an actual example that the present invention is described in more detail.It should be appreciated that tool described herein
Body is implemented only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
As shown in Figure 1 a kind of straight drive motorized pulleys motor, including stator core, rotor core, cylinder wall, excitation around
Group, armature winding and axle etc., described motor is outer-rotor structure, fixes with cylinder wall outside rotor core；Described motor stator
Number of poles is 6n, and the pole embrace of stator is 0.333, and rotor number of poles is 7n, and rotor pole arc coefficient is 0.5.
Embodiment 2
Fixed straight drive motorized pulleys motor as shown in Figure 2, the motor that this embodiment provides is distinguished as it with embodiment 1
Rotor number of poles is 6n/5n, and the pole embrace of stator is 0.4, and rotor pole arc coefficient is 0.5.
Straight drive motorized pulleys high reliability motor each winding technique method as shown in Figure 3, each stator poles has
Armature coil is along the circumferential direction divided into a phase coil, b phase coil, c phase line by one armature coil and a magnet exciting coil
Circle, d phase coil, e phase coil and g phase coil, so circulation n time, and the coiling of adjacent armatures coil is in opposite direction；In stator poles
Each magnet exciting coil there is the identical number of turn, and the coiling of adjacent magnet exciting coil is in opposite direction.
Machine winding of the present invention as shown in Figure 4 and the connection of changer.By a phase coil, c phase coil and e phase coil
One end is connected together as the first neutral point, and one end of a phase coil, c phase coil and e phase coil connects the first bridge converter respectively
Three brachium pontis midpoints of (three-phase)；One end of b phase coil, d phase coil and g phase coil is connected together as the second neutral point, b
One end of phase coil, d phase coil and g phase coil connects three brachium pontis midpoints of the second bridge converter (three-phase) respectively, both permissible
Two independent passages of composition.
Fig. 5 is the three-phase brushless dc motor control method that motor of the present invention adopts 60 ° of electrical angles of two differences.When turn
When son does not adopt oblique pole structure, described motor is entered using the three-phase brushless dc motor control method of 60 ° of electrical angles of two differences
Row controls；When rotor adopts oblique pole structure, described motor adopts the three-phase permanent magnet synchronous motor control of 60 ° of electrical angles of two differences
Method processed is controlled.This is because the uniqueness of motor construction is so that when rotor adopts oblique pole, each opposite potential is all near
It is similar to sine wave；And when rotor does not adopt oblique pole, each opposite potential is all similar to square wave.
Its operation principle:
The straight drive motorized pulleys motor that the present invention provides is electric excitation biconvex electrode electric machine, electric excitation biconvex electrode electric machine
Electric operation principle is: when certain phase stator poles is engaged with rotor pole, this phase phase winding and the mutual inductance of Exciting Windings for Transverse Differential Protection begin to ramp up,
Now mutually pass to forward current to this；When certain phase stator poles is departed from rotor pole, mutually pass to negative current, motor to this
Externally output torque.
The armature coil of traditional every phase of six phase electric excitation biconvex electrode electric machines is different with respect to the position of magnet exciting coil, therefore
The magnetic linkage path that each coil is formed is inconsistent, and that is, the magnetic resistance of each coil is different.This can cause exists between each phase winding
Serious asymmetry.There are a magnet exciting coil and an armature line in each stator poles of scheme that the application proposes
Circle, therefore, is all that complete circumference is symmetrical between each armature coil.
Due to the uniqueness of said stator number of poles and rotor number of poles, each coil can be obtained and differ 60 ° of electrical angles.Through research
Find, to make each phase winding electricity 60 ° of electrical angles of bearing difference, only could become when rotor number of poles is 6n/5n or 6n/7n
Vertical.Motor has six phase windings, and six phase windings have been divided into two passages being mutually isolated, and when wherein one, mutually or a passage goes out
During existing fault, another one passage can be with fault-tolerant operation, and this improves the reliability of system.
It is understood that for those of ordinary skills, with technology according to the present invention scheme and its can send out
Bright design in addition equivalent or change, and all these change or replace the guarantor that all should belong to appended claims of the invention
Shield scope.
Claims (3)
1. a kind of straight drive motorized pulleys motor, including stator, rotor, cylinder wall, Exciting Windings for Transverse Differential Protection, armature winding and axle, described
Motor is outer-rotor structure, and stator and rotor adopt salient pole type structure；Fix with cylinder wall outside described rotor, stator is fixed on
On axle it is characterised in that:
Described motor stator number of poles is 6n, and n is natural number；Rotor pole arc coefficient is 0.5；
Armature coil and magnet exciting coil are designed with each stator poles, described armature coil is than magnet exciting coil closer to excircle；
Armature coil is divided into a phase coil, b phase coil, c phase coil, d phase coil, e phase coil and g phase coil, in each stator poles
It is sequentially provided with a phase armature coil, circulate n time, and the coiling of adjacent armatures coil is in opposite direction；
Described magnet exciting coil has the identical number of turn, and the coiling of adjacent magnet exciting coil is in opposite direction；
One end of a phase coil, c phase coil and e phase coil is connected together as the first neutral point, a phase coil, c phase coil and e
The other end of phase coil connects three brachium pontis midpoints of the first bridge converter respectively；By b phase coil, d phase coil and g phase coil
One end is connected together as the second neutral point, and the other end of b phase coil, d phase coil and g phase coil connects the second bridge-type conversion respectively
The midpoint of device three-phase, forms two independent passages.
2. according to claim 1 a kind of straight drive motorized pulleys motor it is characterised in that: the stator poles of this motor are
6n, the pole embrace of stator is 0.333, and rotor number of poles is 7n, and rotor pole arc coefficient is 0.5, n is natural number.
3. according to claim 1 a kind of straight drive motorized pulleys motor it is characterised in that: the stator poles of this motor are
6n, the pole embrace of stator is 0.4, and rotor number of poles is 5n, and rotor pole arc coefficient is 0.5, n is natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010867.XA CN104600881B (en) | 2015-01-09 | 2015-01-09 | Motor for directly driving electric drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010867.XA CN104600881B (en) | 2015-01-09 | 2015-01-09 | Motor for directly driving electric drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104600881A CN104600881A (en) | 2015-05-06 |
| CN104600881B true CN104600881B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510010867.XA Expired - Fee Related CN104600881B (en) | 2015-01-09 | 2015-01-09 | Motor for directly driving electric drum |
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| Country | Link |
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| CN (1) | CN104600881B (en) |
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| CN106712332B (en) * | 2015-08-04 | 2019-03-15 | 香港理工大学 | Excitation directly controls ac-dc axis from the wide revolving speed speed regulating motor of decoupling |
| CN106451979B (en) * | 2015-08-05 | 2019-11-19 | 香港理工大学 | Magnetic-field modulation-type mixed excitation electric machine |
| CN105576929A (en) * | 2015-12-25 | 2016-05-11 | 华中科技大学 | AC brushless electro-magnetic starter generator employing concentrated windings |
| CN106087821B (en) * | 2016-08-07 | 2017-12-12 | 江苏弘汉生物科技有限公司 | A kind of road cleaner |
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| CN106655688B (en) * | 2017-01-14 | 2019-01-15 | 山东理工大学 | A kind of reluctance motor that edge effect offsets each other |
| CN106787284B (en) * | 2017-02-13 | 2019-04-19 | 南京航空航天大学 | A kind of Modular electrical excitation biconvex electrode electric machine |
| CN106712339B (en) * | 2017-03-20 | 2018-08-31 | 山东理工大学 | A kind of motorized pulleys motor of excitation fault fault-tolerant operation |
| CN106655562B (en) * | 2017-03-20 | 2018-09-14 | 山东理工大学 | A kind of electric return board driving magneto |
| CN106787286B (en) * | 2017-03-20 | 2019-04-30 | 山东理工大学 | A kind of bimodulus reluctance motor |
| CN106787558B (en) * | 2017-03-20 | 2019-02-01 | 山东理工大学 | A kind of magneto that high reliability start stop system is isolated with six |
| CN106787308B (en) * | 2017-03-20 | 2019-01-22 | 山东理工大学 | A kind of electrodynamic balance vehicle magneto |
| CN107070014A (en) * | 2017-05-08 | 2017-08-18 | 史立伟 | A kind of composite excitation servomotor |
| CN112152357A (en) * | 2020-09-14 | 2020-12-29 | 贵州电网有限责任公司 | Stator excitation type field modulation motor based on magnetic pole adjusting structure |
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|---|---|---|---|---|
| JP2002281719A (en) * | 2001-03-23 | 2002-09-27 | Aisin Seiki Co Ltd | Full-pitch winding double salient pole type reluctance motor |
| CN101127461A (en) * | 2007-07-13 | 2008-02-20 | 南京航空航天大学 | Mixed excitation dual protruding pole brushless DC generator |
| CN101442247A (en) * | 2007-11-22 | 2009-05-27 | 北京中纺锐力机电有限公司 | Six-phase switch reluctance motor system |
| CN203255652U (en) * | 2013-04-08 | 2013-10-30 | 南京航空航天大学 | Built-in type electric roller directly driven by doubly-salient brushless motor |
| CN103812294A (en) * | 2014-01-08 | 2014-05-21 | 南京航空航天大学 | Five-phase doubly-salient motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130069079A (en) * | 2011-12-16 | 2013-06-26 | 삼성전기주식회사 | Switched reluctance motor |
-
2015
- 2015-01-09 CN CN201510010867.XA patent/CN104600881B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002281719A (en) * | 2001-03-23 | 2002-09-27 | Aisin Seiki Co Ltd | Full-pitch winding double salient pole type reluctance motor |
| CN101127461A (en) * | 2007-07-13 | 2008-02-20 | 南京航空航天大学 | Mixed excitation dual protruding pole brushless DC generator |
| CN101442247A (en) * | 2007-11-22 | 2009-05-27 | 北京中纺锐力机电有限公司 | Six-phase switch reluctance motor system |
| CN203255652U (en) * | 2013-04-08 | 2013-10-30 | 南京航空航天大学 | Built-in type electric roller directly driven by doubly-salient brushless motor |
| CN103812294A (en) * | 2014-01-08 | 2014-05-21 | 南京航空航天大学 | Five-phase doubly-salient motor |
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| CN104600881A (en) | 2015-05-06 |
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