CN207150380U - A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine - Google Patents
A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine Download PDFInfo
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- CN207150380U CN207150380U CN201720878570.XU CN201720878570U CN207150380U CN 207150380 U CN207150380 U CN 207150380U CN 201720878570 U CN201720878570 U CN 201720878570U CN 207150380 U CN207150380 U CN 207150380U
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Abstract
A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine, belongs to double-salient reluctance motor field；Including：Two groups of magnetic barrier type stators, two groups of circumference alternate angle rotors, rotating shaft, axially casing, sleeved composite permanent magnet, magnetic conduction bar and Exciting Windings for Transverse Differential Protection, axially sleeved composite permanent magnet ring set is in rotating shaft center, two groups of circumference alternate angle rotors are fixed on axially in the rotating shaft of sleeved composite permanent magnet both sides, and magnetic barrier type stator includes partition-type stator yoke and salient pole；Exciting Windings for Transverse Differential Protection is wound with each convex level；Magnetic barrier type stator is correspondingly arranged with circumferential alternate angle rotor, and has air gap；Casing is coaxial with rotating shaft, casing inner wall sets six every magnetic stripe, magnetic barrier type stator is fixed in the magnet isolation tank of casing, magnetic conduction bar serves as magnetic bridge for being connected both sides stator yoke, and the utility model can effectively lift output torque, reduce armature supply under certain condition, improve motor torque ripple, stator yoke loss is reduced, so as to improve motor operation efficiency, improves motor performance index.
Description
Technical field
The utility model belongs to double-salient reluctance motor field, and in particular to a kind of rotor alternate angle stator magnetic barrier type axial direction is forever
Magnetic aids in double salient-pole electric machine.
Background technology
Switched reluctance machines develop by leaps and bounds, switched reluctance machines driving is electric as the most frequently used double salient-pole electric machine
Road is simple, Effec-tive Function can be kept in the wider range of speeds, and still, the torque pulsation of common convex level reluctance motor is larger,
The larger waste energy of adjacent stators between cog yoke portion flux loss.
Utility model content
For above-mentioned the shortcomings of the prior art, the utility model provides a kind of rotor alternate angle stator magnetic barrier type axially forever
Magnetic aids in double salient-pole electric machine, and the motor can effectively lift output torque, can reduce armature supply under certain condition, improves
The torque pulsation of motor, stator yoke loss is reduced, so as to improve motor operation efficiency, improve motor performance index；
The technical solution of the utility model：
A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine, including：
Two groups of magnetic barrier type stators, two groups of circumference alternate angle rotors, rotating shaft, axially casing, sleeved composite permanent magnet, magnetic conduction bar
And Exciting Windings for Transverse Differential Protection；
The magnetic conductor that the sleeved composite permanent magnet in axial direction includes permanent magnet and its both ends are cohered, it is axially sleeved compound
Magnet ring is enclosed on rotating shaft center, and certain interval is left between rotating shaft；
The rotating shaft uses NULL；
The circumferential alternate angle rotor is composite construction, including the rotor rim of tubulose magnetic conductor and tubulose magnetic conductor periphery,
4 salient poles i.e. rotor tooth is uniformly distributed in rotor rim, rotor rim and rotor tooth are formed by silicon steel plate stacking, tubulose magnetic conductor
Combined closely with rotor rim, ensure to rotate corresponding rigidity at a high speed；Two groups of circumference alternate angle rotors are distinguished using circumferential alternate angle mode
It is fixed on axially in the rotating shaft of sleeved composite permanent magnet both sides, with rotating shaft coaxial rotating；
The magnetic barrier type stator is formed using partition-type silicon steel plate stacking, including partition-type stator yoke and uniform point thereon
6 salient poles of cloth are stator tooth；Identical number of turn Exciting Windings for Transverse Differential Protection is wound with each convex level；Two groups of magnetic barrier type stators are circumferential with two groups respectively
Alternate angle rotor is correspondingly arranged, and certain air gap is separated between magnetic barrier type stator and circumferential alternate angle rotor；The casing and rotating shaft are same
Axle is set, and casing inner wall sets six parallel to the raised every magnetic stripe of rotating shaft, forms magnet isolation tank, the magnetic barrier type stator is fixed on
In the magnet isolation tank of casing；The magnet isolation tank is used for the leakage field magnetic circuit for separating adjacent stators between cog, and fixed partition-type stator magnet
Yoke, prevent it from being come off because electric machine rotor between cog produces magnetic torque；The casing uses NULL.
The device for fixed axially sleeved composite permanent magnet and magnetic conduction bar is provided with the middle part of the casing, makes axial direction
Sleeved composite permanent magnet and magnetic conduction bar is fixed in the middle part of casing, and the magnetic conduction bar quantity is six, using permeability magnetic material, is used for
Yoke between linking both sides stator serves as magnetic bridge.
The rotating shaft intermediate vertical face structure on two sides is arranged in parallel in addition to rotor, and full symmetric is hung down in the centre of rotating shaft
Face directly.
Beneficial effect：Rotor alternate angle stator magnetic barrier type axial permanent magnetic auxiliary double salient-pole electric machine of the present utility model and existing skill
Art is compared, and has following advantage：
(1) permanent magnet additive excitation structure is used, is acted on by excitation of the permanent magnet in magnetic circuit, realizes stator excitation
The reduction of electric current, effectively reduce the copper loss of Exciting Windings for Transverse Differential Protection；
(2) both sides rotor is installed using circumferential alternate angle, adds the convex level number of teeth amount of rotor, its special construction can be near
Seemingly regard 12/8 level structure as, the step angle compared to classical 6/4 level structure is small, effectively improves the output torque of motor, is lifted
Torque flatness and then reduction noise；
(3) by using bilateral excitation and rotor alternate angle synchronisation control means, both sides torque peak, paddy linking can effectively be realized
Complementation, electronic device switching frequency is reduced, improve service life and be effectively reduced stator and rotor cores loss；
(4) rotor is formed using silicon steel plate stacking, significantly reduces the quality of motor, and the rotation for reducing motor is used to
Amount, reduces the complexity of motor control, and rotor is had good magnetic property；
(5) motor magnetic circuit " planning " is effectively arrived particular path by magnetic barrier type stator and magnetic conduction bridge, reduces leakage field not
Loss in energized phase and casing；
(6) permanent magnetism ancillary technique and stator effectively lift air gap magnetic coenergy increment, improved under unit mass every the combination of magnetic
Motor output torque index.
Brief description of the drawings
Fig. 1 is that a kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic of embodiment of the utility model aids in double salient-pole electric machine
Radial cutaway view, wherein, (a) is two-dimentional radial cutaway view, and (b) is three-dimensional radial cutaway view；
Fig. 2 is a kind of sleeved composite permanent magnet three dimensional structure diagram in axial direction of embodiment of the utility model；
Fig. 3 is a kind of rotor alternate angle schematic diagram of embodiment of the utility model；
Fig. 4 is that a kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic of embodiment of the utility model aids in double salient-pole electric machine
Side view during different rotor position, wherein, (a) is that side A is initially powered up, and side view when two side A have been powered, (b) is
Two side A phases power off, and side A phases remain powered on, side view when two side B phases are initially powered up；(c) powered off for side A phase windings, two
Side B phases remain powered on, side view when side B phases are initially powered up；
Fig. 5 is a kind of magnetic circuit schematic diagram of embodiment of the utility model；
Fig. 6 is a kind of motor phase inductance of embodiment of the utility model with rotor-position change schematic diagram；
Fig. 7 is a kind of casing of embodiment of the utility model and magnetic barrier type stator schematic diagram, wherein, (a) be with every
Magnetic stripe casing schematic diagram, (b) are magnetic barrier type stator schematic diagram, and (c) is casing and magnetic barrier type stator assembly schematic diagram；
Fig. 8 is a kind of magnetic conduction bar schematic diagram of embodiment of the utility model, wherein, (a) is to remove shell end cover motor three
Schematic diagram is tieed up, (b) is to remove shell end cover motor front view；
Fig. 9 is a kind of motor overall schematic of embodiment of the utility model；
Wherein, 1- rotating shafts, 2- casings, the axial sleeved composite permanent magnets of 3-, 3a- permanent magnets, 3b- magnetic conductors, 4- magnetic conductions
Bar, 5- Exciting Windings for Transverse Differential Protection, 6- end caps, 7- tubulose magnetic conductors, 8- rotor rims, 9- salient poles, 10- partition-type stator yokes, 11- stators
Tooth, 12- casings are raised, 13- magnet isolation tanks, 14- magnetic conduction bars, 15- air gaps；
Figure 10 is a kind of timing magnetic coenergy change schematic diagram of electric current one of embodiment of the utility model.
Embodiment
A kind of embodiment of the present utility model is elaborated below in conjunction with the accompanying drawings.
As shown in figs 1-9, a kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic auxiliary double salient-pole electric machine, including：
Two groups of magnetic barrier type stators, two groups of circumference alternate angle rotors, rotating shaft 1, casing 2, axially sleeved composite permanent magnet 3, lead
Magnetic stripe 4, Exciting Windings for Transverse Differential Protection 5 and end cap 6.
As shown in Fig. 2 the magnetic conductor that the sleeved composite permanent magnet 3 in axial direction includes permanent magnet 3b and its both ends are cohered
3a, axially the sleeved ring set of composite permanent magnet 3 is in rotating shaft middle position, and certain interval is left between rotating shaft；The magnetic conductor
3a uses permeability magnetic material.
The rotating shaft 1 uses NULL.
Stator current can be reduced using permanent magnet additive excitation and motor output performance is constant, save the energy.Due to forever
Magnet and Exciting Windings for Transverse Differential Protection produce air gap flux density in air gap simultaneously, and it is corresponding that the addition of permanent magnet can reduce exciting current accordingly
Increase air gap flux density lifting torque.
As shown in Figure 3-4, the circumferential alternate angle rotor is outside composite construction, including tubulose magnetic conductor 7 and tubulose magnetic conductor
The rotor rim 8 enclosed, 4 salient poles i.e. rotor tooth 9 is uniformly distributed in rotor rim, rotor rim 8 and rotor tooth 9 are by silicon steel sheet stack
Pressure is formed, and tubulose magnetic conductor 7 is combined closely with rotor rim 8, ensures to rotate corresponding rigidity at a high speed；Two groups of circumference alternate angle rotors are adopted
It is individually fixed in circumferential alternate angle mode as shown in Figure 3 axially in the sleeved both sides rotating shaft 1 of composite permanent magnet 3, it is same with rotating shaft 1
Axle rotates.
Using circumferential alternate angle mode, due to this motor can approximation regard 12/8 grade of reluctance motor as, compared to common 6/4 grade
Reluctance motor adds rotor series, reduces step angle, the smooth output stability of lifting motor torque and then reduction noise.It is described
Step angle isWherein, trFor the cycle that is powered, a rotor polar distance t is turned overr=360/Nr, m are the number of phases, Nr
For rotor number of poles.
As shown in Fig. 4 (a) -4 (c), the magnetic barrier type stator is formed using partition-type silicon steel plate stacking, including partition-type is determined
Sub- yoke 10 and 6 salient poles i.e. stator tooth 11 is circumferentially uniformly distributed thereon；Identical number of turn Exciting Windings for Transverse Differential Protection is wound with each convex level
5；Two groups of magnetic barrier type stators are correspondingly arranged with two groups of circumference alternate angle rotors respectively, the interval of magnetic barrier type stator and circumferential alternate angle rotor
There is certain air gap 15.
Rotor is designed using salient pole type, utilizes " magnetic resistance minimum principle " to produce tangential pulling force, realizes electric motor starting, system
Dynamic, parking and four quadrant running.
The rotor alternate angle stator magnetic barrier type axial permanent magnetic auxiliary double salient-pole electric machine operation logic and its control mode are as follows：
The sleeved permanent magnet both sides Exciting Windings for Transverse Differential Protection in axial direction is uniformly divided into A phases as shown in Figure 4, B phases and C phases, and two
Side winding is distributed symmetrically.Both sides winding is individually controlled by two sets of control systems respectively, realizes that magnetic flux path as shown in Figure 5 is walked
To.When motor operates, electric current is passed through in a phase stator exciting coil and produces magnetomotive force, then stator in both ends forms N respectively
Pole and S poles, magnetic flux caused by composite permanent magnet magnetomotive force form S poles and N poles respectively through both ends permeability magnetic material in both ends rotor tooth,
Permanent magnet 3b and Exciting Windings for Transverse Differential Protection 5 respectively caused by magnetomotive force superposition in closed magnetic circuit, produce air gap flux density.According to " magnetic
Hinder minimum principle " tangential pulling force is produced, by controlling Exciting Windings for Transverse Differential Protection to sequentially turn on, motor can be rotated.Motor magnetic circuit：Determine side
The convex level 11 of son, air gap 15, the convex level 9 of side rotor, axially magnetic conductor 7, sleeved composite permanent magnet 3, magnetic conductor 7, opposite side turn
The convex level 11 of son, air gap 15, opposite side salient stator level 9, magnetic conduction bar 14, side salient stator level 11.Because the addition of permanent magnet makes magnetic
Total magnetomotive force increases and then strengthens air gap flux density in magnetic circuit in road, therefore can realize that air gap gives magnetic using smaller exciting current
Close effect.
Shown in embodiment such as Fig. 4 (a), now both sides stator A phases are powered, and specially side A is initially powered up, two sides
A has been powered, and rotates rotor clockwise due to producing tangential magnetic pull between air-gap flux distortion rotor；When two side rotors are suitable
When hour hands rotate to rotor convex level aligned position as shown in Fig. 4 (b), now two side A phases power off side A phases and remained powered on, and two
Side B phases are initially powered up；Rotor is rotated further when side rotor and stator aligned position as shown in Fig. 4 (c), now side A phases
Winding is powered off, and two side B phases are remained powered on, and side B phases are initially powered up, and completes a commutation, and motor is realized clockwise by that analogy
Operation, reversion are opposite with said process.
The design is using the advantage of above-mentioned control strategy：Whole control process any time have both sides winding i.e. on
State with phase or out-phase winding while be powered, such both sides torque can realize that superposition increase motor is contributed；In addition this implementation
In mode, in the absence of process under energization phase inductance, because energized phase winding inductance size is changed as rotor-position changes,
As shown in fig. 6, inductance is maximum when rotor aligns, non-aligned position is minimum.Due to switched reluctance machines electricity torque formula：
I is stator winding current, and L is stator winding inductance, and θ is rotor axis angle.In above-mentioned control process whenever
During certain side rotor alignment, the side stator winding power-off is controlled, so avoiding when inductance declines to the shadow of motor torque fluctuation
Ring, made moderate progress compared to conventional magnetoresistance motor torque ripple problem.
As shown in Fig. 7 (a) -7 (c), the casing 2 is coaxially disposed with rotating shaft 1, and casing inner wall sets six parallel to rotating shaft
Projection 12, form magnet isolation tank 13, the casing uses NULL, prevented the iron loss on conventional motors casing.Raised 12 are
Every magnetic stripe, play magnetic flux between cut-off adjacent stators and fixation is played to stator, prevent it due to electric machine rotor between cog
Produce magnetic torque and come off；Wherein, the magnetic barrier type stator as shown in Fig. 7 (b), is fixed in the magnet isolation tank of casing, solves energization
Magnetic flux caused by phase Exciting Windings for Transverse Differential Protection is leaked to no power phase stator, reduces loss.
The middle part of casing 2 is provided with the device for fixed axially sleeved composite permanent magnet 3 and magnetic conduction bar 14, makes
Axially sleeved composite permanent magnet and magnetic conduction bar are fixed in the middle part of casing, as shown in Fig. 8 (a) -8 (b), the quantity of magnetic conduction bar 14
For six, using permeability magnetic material, for being connected the magnetic flux between the stator of both sides, magnetic bridge is served as.
As shown in figure 9, casing 2 is provided at both ends with end cap 6.
The intermediate vertical face structure on two sides of rotating shaft 1 is arranged in parallel in addition to rotor and full symmetric in the centre of rotating shaft
Vertical plane.
The principle for lifting torque is as follows：The electromagnetic torque of switched reluctance machines can be total to from energy converting between mechanical angle according to magnetic
It can be calculated：
Wherein, W is the magnetic coenergy of motor, as shown in Figure 10, wherein, the face that curve OCB (or OA) surrounds with i reference axis
Product represents magnetic coenergy, and it is the function of electric current and magnetic linkage, and θ is angular displacement of the rotor relative to stator.Therefore, the torque energy of motor
Power can be reflected that as shown in Figure 10, figure cathetus OA represents rotor tooth center line and stator groove center line by I- φ characteristic curves
Characteristic during position (i.e. stator and rotor tooth axis does not line up position) is overlapped, corresponding to maximum reluctance position, now due to stator and rotor
Interpolar gas is larger, and magnetic circuit is unsaturated, so being OA straight lines；And curve OCB is when representing stator and rotor pole center line aligned position
Characteristic, corresponding to magnetic resistance minimum position.
The average torque that rotor often takes a step forward is directly proportional to region OABCO encirclement magnetic coenergy increment Delta W, therefore multiphase
The average output torque of switched reluctance machines is：
Wherein, Nr is rotor number of poles, and m is that number of phases is obvious, under same magnetic field energy, increase the number of phases of motor with
And rotor number of poles can also effectively improve the output torque of motor.But for traditional structure switched reluctance machines, when outside motor
After footpath size determines, mutual restricting relation between three be present, it is difficult to be obtained from structure.The technical program uses special construction
Equivalent 12/8 level structure adds rotor number of poles, lifts torque.
Because the leakage magnetic flux of regular tap reluctance motor adjacent teeth pole will produce braking moment to rotor, this will greatly
The output of shadow motor.Therefore the technical program is aided in using permanent magnet.Pass through the flow direction of axial permanent magnetic body auxiliary permanent magnet
Make interelectrode magnetic leakage is logical to be obviously reduced in the opposite direction with the leakage field in stator, rotor core, reduce leakage field and produce braking moment.
From formula (3) it can also be seen that the torque magnification of switched reluctance machines can be realized by increasing magnetic coenergy increment Delta W,
Air-gap flux and OA in current relationship such as Figure 10 when stator and rotor tooth does not line up position；Air-gap flux during stator and rotor tooth aligned position
With OAB in current relationship such as Figure 10；The caused flow direction in air gap is identical with stator winding for the flow direction of permanent magnet, gas
Gap magnetic flux is strengthened, therefore strengthens region OABCO encirclement magnetic coenergy incremental area Δ W.
Therefore, rotor alternate angle stator magnetic barrier type axial permanent magnetic auxiliary double salient-pole electric machine of the present utility model, is turned using increase
Subseries and lifting magnetic coenergy increment Delta W, realize lifting torque.
Claims (7)
1. a kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine, it is characterised in that including：
Two groups of magnetic barrier type stators, two groups of circumference alternate angle rotors, rotating shaft, axially casing, sleeved composite permanent magnet and Exciting Windings for Transverse Differential Protection；
The magnetic conductor that the sleeved composite permanent magnet in axial direction includes permanent magnet and its both ends are cohered, the sleeved composite permanet magnet in axial direction
Body ring set leaves certain interval in rotating shaft center between rotating shaft；
The circumferential alternate angle rotor includes the rotor rim of tubulose magnetic conductor and tubulose magnetic conductor periphery, in the rotor rim
Even distribution salient pole is rotor tooth, and two groups of circumference alternate angle rotors are individually fixed in axially in the rotating shaft of sleeved composite permanent magnet both sides,
With rotating shaft coaxial rotating；
The magnetic barrier type stator includes partition-type stator yoke and equally distributed salient pole is stator tooth thereon；In each convex level around
There is identical number of turn Exciting Windings for Transverse Differential Protection；Two groups of magnetic barrier type stators are correspondingly arranged with two groups of circumference alternate angle rotors respectively, magnetic barrier type stator with
Certain air gap is separated between circumferential alternate angle rotor；
The casing is coaxially disposed with rotating shaft, and casing inner wall sets six parallel to the raised every magnetic stripe of rotating shaft, forms magnet isolation tank,
The magnetic barrier type stator is fixed in the magnet isolation tank of casing.
2. rotor alternate angle stator magnetic barrier type axial permanent magnetic according to claim 1 aids in double salient-pole electric machine, it is characterised in that
Six magnetic conduction bars, the magnetic conduction strip adoption permeability magnetic material, for being connected both sides stator are provided between two groups of magnetic barrier type stators
Yoke serves as magnetic bridge；The device for fixed axially sleeved composite permanent magnet and magnetic conduction bar is provided with the middle part of the casing,
The sleeved composite permanent magnet in axial direction and magnetic conduction bar is set to be fixed in the middle part of casing.
3. rotor alternate angle stator magnetic barrier type axial permanent magnetic according to claim 1 aids in double salient-pole electric machine, it is characterised in that
4 salient poles are uniformly distributed in the rotor rim, 6 salient poles are uniformly distributed on the partition-type stator yoke.
4. rotor alternate angle stator magnetic barrier type axial permanent magnetic according to claim 1 aids in double salient-pole electric machine, it is characterised in that
The rotating shaft uses NULL.
5. rotor alternate angle stator magnetic barrier type axial permanent magnetic according to claim 1 aids in double salient-pole electric machine, it is characterised in that
The rotor rim and rotor tooth are formed by silicon steel plate stacking, and the magnetic barrier type stator is formed using partition-type silicon steel plate stacking.
6. rotor alternate angle stator magnetic barrier type axial permanent magnetic according to claim 1 aids in double salient-pole electric machine, it is characterised in that
Two groups of circumference alternate angles rotor is individually fixed in axially in the rotating shaft of sleeved composite permanent magnet both sides using circumferential alternate angle mode.
7. rotor alternate angle stator magnetic barrier type axial permanent magnetic according to claim 1 aids in double salient-pole electric machine, it is characterised in that
The casing uses NULL, and the magnet isolation tank is used for the leakage field magnetic circuit for separating adjacent stators between cog, and fixed partition-type
Stator yoke, prevent it from being come off because electric machine rotor between cog produces magnetic torque.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878570.XU CN207150380U (en) | 2017-07-19 | 2017-07-19 | A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878570.XU CN207150380U (en) | 2017-07-19 | 2017-07-19 | A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181382A (en) * | 2017-07-19 | 2017-09-19 | 沈阳工业大学 | A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine |
| CN110518720A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of sectional type straight trough stator coil auxiliary brshless DC motor |
| CN110518765A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of claw type stator yoke insertion permanent magnet auxiliary birotor axial direction double salient-pole electric machine |
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2017
- 2017-07-19 CN CN201720878570.XU patent/CN207150380U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181382A (en) * | 2017-07-19 | 2017-09-19 | 沈阳工业大学 | A kind of rotor alternate angle stator magnetic barrier type axial permanent magnetic aids in double salient-pole electric machine |
| CN107181382B (en) * | 2017-07-19 | 2023-11-28 | 沈阳工业大学 | Rotor stagger angle stator magnetism-isolating type axial permanent magnet auxiliary doubly salient motor |
| CN110518720A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of sectional type straight trough stator coil auxiliary brshless DC motor |
| CN110518765A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of claw type stator yoke insertion permanent magnet auxiliary birotor axial direction double salient-pole electric machine |
| CN110518765B (en) * | 2019-08-30 | 2021-08-24 | 沈阳工业大学 | Claw-shaped stator yoke part embedded permanent magnet auxiliary double-rotor axial double-salient-pole motor |
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