CN111049288B - Surrounding type winding magnetic flux modulation stator structure - Google Patents

Surrounding type winding magnetic flux modulation stator structure Download PDF

Info

Publication number
CN111049288B
CN111049288B CN201911411498.XA CN201911411498A CN111049288B CN 111049288 B CN111049288 B CN 111049288B CN 201911411498 A CN201911411498 A CN 201911411498A CN 111049288 B CN111049288 B CN 111049288B
Authority
CN
China
Prior art keywords
stator
winding
magnetic flux
flux modulation
surrounding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911411498.XA
Other languages
Chinese (zh)
Other versions
CN111049288A (en
Inventor
邱洪波
丁艺伟
郑新华
刘小梅
李伟力
杨存祥
王明杰
张志艳
伊然
乔建伟
刘玉宝
时长敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou University of Light Industry
Original Assignee
Zhengzhou University of Light Industry
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou University of Light Industry filed Critical Zhengzhou University of Light Industry
Priority to CN201911411498.XA priority Critical patent/CN111049288B/en
Publication of CN111049288A publication Critical patent/CN111049288A/en
Application granted granted Critical
Publication of CN111049288B publication Critical patent/CN111049288B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/16Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating

Abstract

The invention discloses a surrounding type winding magnetic flux modulation stator structure, which comprises a slotted stator, a surrounding type winding and a magnetic flux modulation ring, wherein the slotted stator comprises a stator yoke, stator inner grooves and stator outer grooves, a surrounding type winding is wound at each stator inner groove, and the magnetic flux modulation ring is formed by connecting magnetizers and non-magnetizers, wherein the magnetizers and the non-magnetizers are distributed at intervals; the magnetic flux modulation ring is arranged on the back of the slotted stator, the position of the magnetic flux modulation ring is changed through the movement mechanism, and the magnetic flux modulation ring is matched with the slotted stator to realize magnetic flux modulation under the combined action. The invention utilizes the magnetic field generated by the surrounding winding and realizes the effect of changing the magnetic circuit by additionally arranging the magnetic flux modulation ring on the back of the stator.

Description

Surrounding type winding magnetic flux modulation stator structure
Technical Field
The invention relates to the technical field of motors, in particular to a wound winding magnetic flux modulation stator structure.
Background
The surrounding type winding is mainly applied to the field of high-speed motors, and the high-speed permanent magnet generator has the advantages of small size, low noise, quick dynamic response, high power density, high transmission system efficiency and the like, becomes a key power generation device of a distributed energy supply system of the micro gas turbine, and meets the requirement of the micro gas turbine power generation system developing towards miniaturization and integration. The surrounding type winding is respectively wound on the inner groove of the stator and the back of the stator, the high-speed motor can reduce the length of the end part of the winding by using the surrounding type winding, so that the axial length of the rotor is reduced to achieve the effect of enhancing the mechanical strength of the rotor, but the surrounding type winding also has inevitable defects. Half of the winding of the surrounding winding is located at the back of the rotor, so that the utilization rate of the winding is low and the magnetic leakage of the winding can generate adverse effects.
The invention with the publication number CN108988598A discloses a stator built-in magnetic flux modulation type permanent magnet vernier motor, which is characterized in that an outer rotor (2), an inner rotor (3) and a stator (4) are sequentially arranged inside a motor shell from outside to inside, twelve outer rotor salient poles (2-1) are arranged on the inner surface of the outer rotor (2), eight inner rotor salient poles (3-1) are arranged on the outer surface of the inner rotor (3) close to the outer rotor side, the inner surface close to the stator side is of a circular surface structure, sixteen pairs of permanent magnets (3-2) are embedded, the stator (4) is connected to the shell (1) through an iron block (13), six stator teeth (4-1) are arranged on the circumference of a stator iron core, and three magnetic flux modulation poles (4-2) are arranged on each stator tooth, and a three-phase centralized stator armature winding (6) and a direct-current excitation winding (7) with two pairs of pole pairs are simultaneously arranged in the stator slot. The invention has the advantages that: the torque output capacity, the torque density, the speed regulation range and the mechanical strength are increased, and the processing and the assembly are simple.
The invention of the publication number CN105490481B provides a high torque density multi-disc-multi-air gap axial magnetic flux magnetic field modulation permanent magnet motor, wherein the permanent magnet motor has a multi-disc multi-air gap structure, and is formed by a plurality of stators and rotors which are sequentially staggered in the axial direction, if the number of the stators is Ns, the number of the rotors is Nr, and the number of the stators and the rotors satisfies: ns ═ Nr +1(Nr ═ 2, 3, 4.), the outermost two stators do not have windings, and the inner stator has a toroidal winding. The modulated permanent magnet motor realized according to the invention has the advantages that the length of the end part of the winding is reduced, the copper consumption of the motor is reduced, the efficiency is improved, the outer stators on the two sides are used as auxiliary magnetic circuits, the characteristics of high electromagnetic torque density, high power factor and the like of the magnetic field modulated motor are reserved, the integral torque density of the motor is improved, and meanwhile, the outer stators on the two sides can be directly connected with the shell, so the assembly is easy.
The invention of the publication number CN105406669B discloses a multi-air-gap axial magnetic flux-magnetic field modulation permanent magnet motor, which comprises a plurality of stators and a plurality of rotors which are staggered in an axial mode in sequence, wherein two surface-mounted permanent magnet rotors are arranged at two ends of the permanent magnet motor, and the rest of the rotors are embedded permanent magnet rotors; the stators are identical in structural size, slots are formed in the two sides, annular windings are adopted, and the stators are sequentially offset by half slot pitch mechanical angle relative to the previous stator in the circumferential direction. The multi-air-gap axial flux-magnetic field modulation permanent magnet motor realized according to the invention can comprehensively solve the inherent problems of limited torque density and low power factor of the magnetic field modulation motor on the basis of keeping the excellent performance of the magnetic field modulation motor.
The invention discloses an axial magnetic field modulation type composite motor with an improved magnetic modulation structure and an improved magnetizing direction, which is disclosed by the invention with the publication number CN104578633A and aims to solve the problems that the fixing mode of a magnetic modulation ring of the existing axial magnetic flux modulation motor is complex and the utilization rate of a permanent magnet is low. A magnetic adjusting ring is fixedly bonded on the side surface of each air gap of a stator and is fixedly connected with a rotating shaft; the magnetic regulating ring is composed of magnetic regulating blocks which are uniformly distributed along the circumferential direction; the rotor comprises a rotor disc and a permanent magnet ring, the permanent magnet ring is adhered to the side surface of an air gap of the rotor disc, the permanent magnet ring is composed of a plurality of permanent magnets which are uniformly distributed along the circumferential direction, and each permanent magnet is composed of permanent magnet segments which are uniformly divided into four segments along the circumferential direction; along clockwise, first, three permanent magnet segmentation in each permanent magnet magnetizes along the circumferencial direction to the direction of magnetizing is opposite, and second, four permanent magnet segmentation in each permanent magnet magnetizes along the axial, and the direction of magnetizing is opposite.
The invention discloses a magnetic field modulation type transverse flux multiphase permanent magnet motor with the publication number of CN102420515A, which is provided for solving the problems of low reliability, large loss, low torque density and complex structure of the existing multiphase permanent magnet synchronous motor. It is composed of a stator and a rotor; the m armature units are sequentially arranged in the shell along the axial direction; each phase armature unit is staggered with 360 degrees/m electrical angle along the circumferential direction; the armature coil is embedded in an annular space between the first stator core tooth section, the second stator core tooth section and the third stator core tooth section; the outer circumferential surfaces of the tooth sections of the first rotor iron core and the third rotor iron core are respectively provided with k/2 rotor permanent magnet grooves along the axial direction; the rotor permanent magnet slots on the first rotor iron core tooth section and the rotor permanent magnet slots on the third rotor iron core tooth section are staggered by half rotor tooth pitch along the axial direction; the magnetizing directions of the rotor permanent magnets are the same. The novel high-voltage motor has the advantages of high reliability and safety, strong fault-tolerant capability, simple structure, low cost, high torque density, good dynamic characteristic, easiness in realizing modularization and the like.
The technical scheme discloses some magnetic flux modulation schemes, but the magnetic flux modulation schemes cannot adapt to and solve the problems that half of windings of the surrounding type windings are located on the back of the rotor, so that the winding utilization rate is low, and the winding magnetic leakage can generate adverse effects.
Disclosure of Invention
The invention aims to provide a wound winding magnetic flux modulation stator structure.
In order to solve the technical problems, the invention adopts the following technical scheme:
a surrounding type winding magnetic flux modulation stator structure comprises a slotted stator, m symmetrical surrounding type windings and a magnetic flux modulation ring, wherein m is the phase number of a motor;
the slotted stator comprises a stator yoke, stator inner slots and stator outer slots, the number of the stator inner slots is 2pmk, and the stator inner slots are circumferentially equally spaced; the stator outer slots are formed in the back of the stator, the number of the stator outer slots is less than or equal to 2pmk, and the stator outer slots are of a structure with a radial outward opening; wherein p is the pole pair number of the motor, and k is a positive integer;
a surrounding winding is wound at the position of each stator inner groove, and the surrounding winding surrounds the stator yoke by the end part of the stator; one side of the surrounding winding is arranged in the stator inner groove, and the other side of the surrounding winding is arranged on the back of the stator or the stator outer groove;
the magnetic flux modulation ring is formed by connecting a magnetizer and a non-magnetizer, wherein the magnetizer and the non-magnetizer are distributed at intervals; the size of the magnetizer is matched with the number and the position of the magnetizer and the number of the outer slots of the stator;
the magnetic flux modulation ring is arranged on the back of the slotted stator, the position of the magnetic flux modulation ring is changed through the movement mechanism, and the magnetic flux modulation ring is matched with the outer slot of the stator to realize magnetic flux modulation under the combined action.
All the surrounding windings adopt a parallel winding method, and the distances among all the windings are equal to form the parallel surrounding windings.
Wherein, part of the winding is interlaced and wound to form interlaced and winding type winding.
The spacing of the stator outer slots adopts a form of equal spacing or unequal spacing.
The central line of the stator outer slot and the central line of the stator inner slot are in the same radial direction or form a certain angle deviation.
The magnetizer is made of a magnetic material, and the non-magnetizer is made of a non-magnetic material.
The invention has the beneficial effects that:
the invention utilizes the magnetic field generated by the surrounding winding and realizes the effect of changing the magnetic circuit by additionally arranging the magnetic flux modulation ring on the back of the stator.
The invention changes the magnetic circuit through the magnetic flux modulation ring, and changes the harmonic component and the voltage amplitude in the motor.
When the magnetic flux modulating mechanism normally operates, alternating current exists in the surrounding type winding, a magnetic field can be induced around the winding, at the moment, the non-magnetic conductor of the magnetic flux modulating mechanism is positioned above the open slot at the back of the stator, the magnetic resistance of the non-magnetic material is large, the magnetic field needs to form a closed loop, the magnetic field is mainly distributed near the winding, and few magnetic lines of force pass through the stator to generate the closed loop. Under normal operating conditions, the influence of the flux modulating ring on the overall performance of the motor is negligible.
When the mechanism is in action, the controller controls the motion mechanism to drive the magnetic flux modulation ring to move, so that the magnetizer on the ring gradually moves towards the upper part of the notch at the back part of the stator, more and more magnetic lines of force passing through the magnetizer are formed around the winding along with the closer distance of the magnetizer to the winding, the magnetic lines of force influence the magnetic lines of force in the stator, and the effective voltage value of the phase is reduced, so that the harmonic component and the voltage amplitude value in the motor are changed through the magnetic modulation mechanism.
The invention can change the induced electromotive force and harmonic content of the motor, thereby changing the performance of the motor to ensure short-time fault-tolerant operation of the motor and reducing fault aggravation and larger economic loss caused by torque pulsation.
The invention utilizes the working characteristics of the back winding type winding to realize the flux modulation without additionally adding an excitation winding, and on the other hand, the high-efficiency utilization of the back winding type winding is realized.
The invention realizes the function of dynamically adjusting harmonic components and provides a new solution for short-time fault-tolerant operation of the motor. The magnetic flux regulation at the back of the stator is realized by utilizing the surrounding type winding, the magnetic flux modulation ring and the special slotted stator, and the winding at one side, which cannot be normally utilized by the surrounding type winding, is fully utilized. The magnetic flux modulation ring is positioned at the back of the stator, an electric brush and a slip ring structure are not used, the system reliability is high, the maintenance is convenient, and the magnetic field magnetic circuit of the surrounding winding is changed through the magnetic flux modulation ring to realize the change of the performance of the motor. The present invention is useful in high speed motor applications.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a slotted stator according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a flux modulating ring according to an embodiment of the present invention;
FIG. 4 is a first schematic view of magnetic flux modulation according to a first embodiment of the present invention;
FIG. 5 is a diagram illustrating magnetic flux modulation according to a first embodiment of the present invention;
FIG. 6 is a third schematic view of magnetic flux modulation according to the first embodiment of the present invention;
FIG. 7 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a flux modulating ring according to a fourth embodiment of the present invention;
FIG. 11 is a schematic structural diagram according to a fifth embodiment of the present invention;
FIG. 12 is a schematic perspective view of a fifth embodiment of the present invention
Fig. 13 is a schematic structural diagram of a sixth embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments will be made with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to fig. 3, the present embodiment discloses a winding type winding flux modulation stator structure, which includes a slotted stator 2, m symmetric winding type windings 1 and a flux modulation ring 3, where m is the number of phases of a motor.
Both sides of the slotted stator are provided with slots which comprise a stator yoke 4, a stator inner slot 5 and a stator outer slot 6. The number of the slots of the stator inner slot 5 is 2pmk, and the stator inner slot 5 is circumferentially slotted at equal intervals. The stator outer slots 6 are formed in the back of the stator, the number of the stator outer slots 6 is less than or equal to 2pmk, and the stator outer slots 6 are of a structure with a radial outward opening. Wherein p is the pole pair number of the motor, and k is a positive integer.
The centre line of the stator outer slot 6 may be in the same radial direction or form an angular deviation with the centre line of the stator inner slot 5.
A surrounding winding 1 is wound at each stator inner groove 5, and the surrounding winding 1 surrounds a stator yoke 4 through the end part of the stator; one side of the surrounding winding 1 is placed in the stator inner groove 5, the other side of the surrounding winding is placed at the back of the stator, and the stator outer groove is placed in the stator outer groove 6. All the surrounding windings 1 adopt a parallel winding method, and the distances among all the windings are equal to form the parallel surrounding windings. The parallel surrounding type winding can reduce the difficulty of winding when the motor is manufactured.
The magnetic flux modulation ring 3 is formed by connecting a magnetizer 7 and a non-magnetizer 8, wherein the magnetizer 7 and the non-magnetizer 8 are distributed at intervals. The magnetizer 7 is made of a magnetic material, and the non-magnetizer 8 is made of a non-magnetic material. The size and the number of the magnetizers 7 are matched with the number and the positions of the stator outer slots 6.
The magnetic flux modulation ring 3 is matched with a slotted stator, and the outer slot of the stator may have an unfixed interval, so that the size of the magnetizer 7, the number of the magnetizers 7 and the distribution interval between the adjacent magnetizers 7 are unfixed.
The magnetic flux modulation ring 3 is arranged on the back of the slotted stator 2 under the normal operation state by means of the arrangement of the magnetic flux modulation ring, the position of the magnetic flux modulation ring 3 is changed by a motion mechanism, and the magnetic flux modulation ring is matched with the slotted stator 2 to realize magnetic flux modulation under the combined action.
The working principle of the invention is as follows:
as shown in fig. 4, in the normal operation state of the motor, the non-magnetic conductor 8 is located above the stator outer slot 6, and at this time, the magnetic circuit is not closed along the upper part of the notch of the stator outer slot 6, so that the magnetic field generated by the winding 1 does not affect the magnetic field in the stator.
As shown in fig. 5, in the working state before the flux modulating ring 3 reaches the designated position, at this time, a small part of the magnetizer 7 is located above the notch of the stator outer slot 6, and a part of the magnetic force lines pass through the magnetizer 7 to be closed, which weakens the magnetic field of the stator yoke but has an insignificant influence on the magnetic field.
As shown in fig. 6, in the working state that the flux modulating ring reaches the designated position, at this time, the upper side of the notch of the stator outer slot 6 is completely covered with the magnetizer 7, most of the magnetic force lines generated by the winding type winding 1 are closed along the path of the stator yoke 4 → the magnetizer 7 → the stator yoke 4, and at this time, a great weakening effect is generated on the magnetic field of the stator yoke, so as to play a role in adjusting the induced electromotive force and the harmonic wave.
The invention changes the magnetic circuit through the magnetic flux modulation ring, and changes the harmonic component and the voltage amplitude in the motor. When the magnetic flux modulating mechanism normally operates, alternating current exists in the surrounding type winding, a magnetic field can be induced around the winding, at the moment, the non-magnetic conductor of the magnetic flux modulating mechanism is positioned above the open slot at the back of the stator, the magnetic resistance of the non-magnetic material is large, the magnetic field needs to form a closed loop, the magnetic field is mainly distributed near the winding, and few magnetic lines of force pass through the stator to generate the closed loop. Under normal operating conditions, the influence of the flux modulating ring on the overall performance of the motor is negligible. When the mechanism is in action, the controller controls the motion mechanism to drive the magnetic flux modulation ring to move, so that the magnetizer on the ring gradually moves towards the upper part of the notch at the back part of the stator, more and more magnetic lines of force passing through the magnetizer are formed around the winding along with the closer distance of the magnetizer to the winding, the magnetic lines of force influence the magnetic lines of force in the stator, and the effective voltage value of the phase is reduced, so that the harmonic component and the voltage amplitude value in the motor are changed through the magnetic modulation mechanism.
The invention utilizes the magnetic field generated by the surrounding winding and changes the magnetic circuit by additionally arranging the magnetic flux modulation ring on the back of the stator to realize the effect of changing the magnetic circuit.
The invention can change the induced electromotive force and harmonic content of the motor, thereby changing the performance of the motor to ensure short-time fault-tolerant operation of the motor and reducing fault aggravation and larger economic loss caused by torque pulsation.
The invention utilizes the working characteristics of the back winding type winding to realize the flux modulation without additionally adding an excitation winding, and on the other hand, the high-efficiency utilization of the back winding type winding is realized.
The invention realizes the function of dynamically adjusting harmonic components and provides a new solution for short-time fault-tolerant operation of the motor. The magnetic flux regulation at the back of the stator is realized by utilizing the surrounding type winding, the magnetic flux modulation ring and the special slotted stator, and the winding at one side, which cannot be normally utilized by the surrounding type winding, is fully utilized. The magnetic flux modulation ring is positioned at the back of the stator, an electric brush and a slip ring structure are not used, the system reliability is high, the maintenance is convenient, and the magnetic field magnetic circuit of the surrounding winding is changed through the magnetic flux modulation ring to realize the change of the performance of the motor.
The invention can be used for the application occasions of micro gas turbine driving, high-speed generators, aviation power supplies, distributed power generation and the like of a distributed power supply system.
Example two:
according to actual requirements, the back of the stator can be provided with grooves with different depths.
As shown in fig. 7, the winding type windings of this embodiment and the first surrounding embodiment all adopt a parallel winding manner, but the difference between them is: the groove depths of the stator outer grooves 6 are different, and the depths of the surrounding type windings 1 embedded into the stator are different, so that the adjusting range of induced electromotive force is enlarged, and the fault-tolerant operation capability is also improved.
Example three:
as shown in fig. 8, the winding type windings of this embodiment and the first surrounding embodiment all adopt a parallel winding manner, but the difference between them is: the number of the slots of the stator outer slots 6 is different, and the number of the single stator outer slots 6 is still smaller than the number of the slots of the stator inner slots 5. Different numbers of windings are embedded into the stator outer slots, so that the regulation range of induced electromotive force is enlarged, and the fault-tolerant operation capability is also improved.
Example four:
as shown in fig. 9, the winding type windings of this embodiment and the first surrounding embodiment all adopt a parallel winding manner, but the difference between them is: the number of the slots of the stator outer slots 6 is different, and the number of the single stator outer slots 6 is equal to the number of the slots of the stator inner slots 5.
As shown in fig. 10, the size of the magnetizer 7 in the flux modulating ring 3 is matched with the number of the magnetizers and the number and the positions of the outer slots of the stator. Different numbers of windings are embedded into the stator outer slot, so that the regulation range of induced electromotive force is enlarged.
Example five:
as shown in fig. 11 and 12, the present embodiment is different from the first embodiment in that: the surrounding winding adopts a staggered winding mode, namely, part of the surrounding winding is staggered and wound to form a staggered surrounding winding.
The stator outer slots 6 can have two or more slots adopting staggered surrounding windings, wherein the spacing of the stator outer slots can adopt unequal spacing or equal spacing.
Except for partially using the staggered surrounding type winding, other normal windings (the two sides of the other surrounding type windings are placed in the same radial direction, one side is placed in an inner stator groove, the other side is placed in an outer stator groove or is not placed at the back of a stator), the adjusting range of induced electromotive force is enlarged, harmonic components are changed by changing the spatial positions of different phase sequence windings, the low-order harmonic content is reduced, and therefore the operation reliability is improved.
Example six:
as shown in fig. 13, the five-winding type winding of the present embodiment and the five-winding type winding of the present embodiment both adopt an interleaved winding manner, but the difference between them is that: the included angles of the staggered windings are different, the adjusting range of induced electromotive force is further enlarged based on the different included angles, and the low-order harmonic content is reduced.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims (6)

1. The utility model provides a wound form winding magnetic flux modulation stator structure which characterized in that: the motor comprises a slotted stator, m symmetrical surrounding windings and a magnetic flux modulation ring, wherein m is the phase number of the motor;
the slotted stator comprises a stator yoke, stator inner slots and stator outer slots, the number of the stator inner slots is 2pmk, and the stator inner slots are circumferentially equally spaced; the stator outer slots are formed in the back of the stator, the number of the stator outer slots is less than or equal to 2pmk, and the stator outer slots are of a structure with a radial outward opening; wherein p is the pole pair number of the motor, and k is a positive integer;
a surrounding winding is wound at the position of each stator inner groove, and the surrounding winding surrounds the stator yoke by the end part of the stator; one side of the surrounding winding is arranged in the stator inner groove, and the other side of the surrounding winding is arranged on the back of the stator or the stator outer groove;
the magnetic flux modulation ring is formed by connecting a magnetizer and a non-magnetizer, wherein the magnetizer and the non-magnetizer are distributed at intervals; the size of the magnetizer is matched with the number and the position of the magnetizer and the number of the outer slots of the stator;
the magnetic flux modulation ring is arranged on the back of the slotted stator, the position of the magnetic flux modulation ring is changed through the movement mechanism, and the magnetic flux modulation ring is matched with the outer slot of the stator to realize magnetic flux modulation under the combined action.
2. The wraparound winding flux modulating stator structure of claim 1, wherein: all the surrounding windings adopt a parallel winding method, and the distances among all the windings are equal to form the parallel surrounding windings.
3. The wraparound winding flux modulating stator structure of claim 1, wherein: wherein, part of the winding is interlaced and wound to form interlaced and winding type winding.
4. The wraparound winding flux modulating stator structure of any one of claims 1 to 3, wherein: the spacing of the stator outer slots adopts a form of equal spacing or unequal spacing.
5. The wraparound winding flux modulating stator structure of any one of claims 1 to 3, wherein: the central line of the stator outer slot and the central line of the stator inner slot are in the same radial direction or form a certain angle deviation.
6. The wraparound winding flux modulating stator structure of any one of claims 1 to 3, wherein: the magnetizer is made of a magnetic material, and the non-magnetizer is made of a non-magnetic material.
CN201911411498.XA 2019-12-31 2019-12-31 Surrounding type winding magnetic flux modulation stator structure Active CN111049288B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911411498.XA CN111049288B (en) 2019-12-31 2019-12-31 Surrounding type winding magnetic flux modulation stator structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911411498.XA CN111049288B (en) 2019-12-31 2019-12-31 Surrounding type winding magnetic flux modulation stator structure

Publications (2)

Publication Number Publication Date
CN111049288A CN111049288A (en) 2020-04-21
CN111049288B true CN111049288B (en) 2021-01-29

Family

ID=70241053

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911411498.XA Active CN111049288B (en) 2019-12-31 2019-12-31 Surrounding type winding magnetic flux modulation stator structure

Country Status (1)

Country Link
CN (1) CN111049288B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112737153B (en) * 2020-12-17 2021-11-23 郑州轻工业大学 Discrete automatic magnetic-regulating speed-regulating motor stator structure
CN112737152B (en) * 2020-12-17 2021-10-22 郑州轻工业大学 Centralized automatic magnetic-regulating speed-regulating motor stator structure
CN113054764B (en) * 2021-04-14 2022-03-01 郑州轻工业大学 Liquid cooling strikes arch magnetic flow adjusting device
CN113113978B (en) * 2021-04-14 2022-06-03 郑州轻工业大学 Double-pressure liquid cooling magnetic flux adjusting device
CN113131632B (en) * 2021-04-14 2022-05-17 郑州轻工业大学 Pneumatic pressure source magnetic flux adjusting device
CN113964991B (en) * 2021-11-15 2022-09-13 郑州轻工业大学 Motor stator structure of surrounding type secondary winding and fault-tolerant operation
CN113839479B (en) * 2021-11-15 2022-08-09 江苏远东电机制造有限公司 Wound auxiliary winding and fault-tolerant energy supply generator stator structure
CN113839485B (en) * 2021-11-15 2022-07-19 郑州轻工业大学 Motor stator structure with electrolytic cooling and fault-tolerant operation
CN115276335B (en) * 2022-07-29 2023-11-10 江苏大学 Magnetic field modulation permanent magnet motor optimization method considering magnetic leakage and magnetic field harmonic wave

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377922A (en) * 2014-11-25 2015-02-25 东南大学 Dual-rotor switched reluctance motor with flux adjustment winding
CN106160379A (en) * 2015-03-26 2016-11-23 香港理工大学 Flux modulation bimorph transducer double electricity port motor
CN105406669B (en) * 2015-12-25 2017-09-26 华中科技大学 A kind of axial flux field modulation magneto of many air gaps
CN105827078A (en) * 2016-05-12 2016-08-03 哈尔滨理工大学 Mixed excitation axial magnetic-flux modulated-type motor with composite structure
CN110460175B (en) * 2019-07-26 2020-11-06 南京理工大学 Axial magnetic flux concentrated winding type hybrid excitation motor

Also Published As

Publication number Publication date
CN111049288A (en) 2020-04-21

Similar Documents

Publication Publication Date Title
CN111049288B (en) Surrounding type winding magnetic flux modulation stator structure
CN110994821B (en) Magnetic flux modulation stator structure using axial sectional type hysteresis loop
CN111181262B (en) Stator structure using built-in magnetic flux modulation ring of winding
US9496768B2 (en) Electrical machines
CN108964396B (en) Stator partition type alternate pole hybrid excitation motor
CN105207436B (en) A kind of ring-shaped yoke portion armature winding high power density composite excitation permanent magnet motor
CN110601482B (en) Axial magnetic field flywheel pulse synchronous generator system
CN113067446B (en) Double-modularization hybrid excitation flux switching motor
CN105186749B (en) A kind of ring-shaped yoke portion double winding composite excitation permanent magnet motor
CN110545021B (en) Mixed excitation multi-phase reluctance motor and power generation system
CN205081652U (en) Armature winding high power density mixed excitation permanent magnet motor of annular yoke portion
CN110518766B (en) Asymmetric double-stator mixed excitation type axial magnetic field flux switching motor
CN111953161B (en) Double-winding axial magnetic field multiphase flywheel pulse generator system
RU2437202C1 (en) Non-contact magnetoelectric machine with axial excitation
EP2782215A1 (en) Retractable modular stator for an electric motor/generator
CN111277092B (en) Stator modularized double-rotor alternating pole permanent magnet motor
CN210405045U (en) Axial parallel composite motor
CN111224477A (en) Parallel structure brushless mixed excitation synchronous generator based on harmonic winding excitation
CN113178963B (en) Radial and axial double-modularization magnetic flux switching motor
CN205081600U (en) Duplex winding mixed excitation permanent magnet motor of annular yoke portion
CN110994822B (en) Stator structure with self-adaptive magnetic field correction capability
CN111211659B (en) Stator modular annular winding dual-rotor permanent magnet motor
CN110112852B (en) Double-fed permanent magnet motor
RU2716489C2 (en) Electromechanical converter
CN110601476A (en) Radial magnetic field axial parallel composite motor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant