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CN212033848U - Structure of Stator Permanent Magnet Spacer Assisted Double Armature Winding Multiple Electromagnetic Torque Reluctance Motor - Google Patents

Structure of Stator Permanent Magnet Spacer Assisted Double Armature Winding Multiple Electromagnetic Torque Reluctance Motor Download PDF

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CN212033848U
CN212033848U CN202020762949.6U CN202020762949U CN212033848U CN 212033848 U CN212033848 U CN 212033848U CN 202020762949 U CN202020762949 U CN 202020762949U CN 212033848 U CN212033848 U CN 212033848U
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stator
rotor
armature winding
teeth
generated
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贾少锋
冯帅
梁得亮
董晓壮
诸自强
刘进军
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Xian Jiaotong University
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Xian Jiaotong University
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Abstract

The utility model discloses a stator permanent magnet interval auxiliary double-armature winding multiple electromagnetic torque reluctance motor structure, which comprises a stator and a rotor which are both salient pole structures, wherein the rotor and the stator rotate relatively, and an annular air gap is formed between the stator and the rotor; the stator comprises a stator core, a stator armature winding and a stator permanent magnet, wherein the stator core comprises stator teeth and a stator yoke part, the stator armature winding is wound on the stator teeth by adopting a two-phase fractional slot concentrated winding structure, and a plurality of stator teeth are provided with a stator permanent magnet at intervals; the rotor comprises a rotor core and a rotor armature winding, the rotor core comprises rotor teeth and a rotor yoke, and the rotor armature winding is wound on the rotor teeth in a three-phase fractional slot concentrated winding structure. The utility model has the characteristics of high torque density and fault-tolerant ability are strong, when guaranteeing strong fault-tolerant, further improve torque density.

Description

Stator permanent magnet interval auxiliary double-armature winding multiple electromagnetic torque reluctance motor structure
Technical Field
The utility model belongs to the motor field, concretely relates to supplementary two armature winding multiple electromagnetic torque reluctance motor structures of stator permanent magnetism interval.
Background
In recent years, with the development of new energy automobiles and space shuttles, motors used are required to have high torque density (power density), high efficiency, high fault-tolerant capability, and the like. The permanent magnet motor has high torque density and high power factor, but the price of the permanent magnet material is higher and the risk of high-temperature magnetic loss exists. The traditional switched reluctance motor has simple structure and low price, but has the defects of large noise, vibration and torque pulsation. The traditional magnetic field modulation motor has the characteristic of high torque density, but generally only comprises one set of armature winding, so that once the winding fails, the torque cannot be generated, and the fault tolerance performance is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, a stator permanent magnet interval auxiliary double-armature winding multiple electromagnetic torque reluctance motor structure is provided. The utility model has the characteristics of high torque density and fault-tolerant ability are strong, when guaranteeing strong fault-tolerant, torque density further improves.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a stator permanent magnet interval auxiliary double-armature winding multiple electromagnetic torque reluctance motor structure comprises a stator and a rotor which are both in a salient pole structure, wherein the rotor and the stator rotate relatively, and an annular air gap is formed between the stator and the rotor;
the stator comprises a stator core, a stator armature winding and a stator permanent magnet, wherein the stator core comprises stator teeth and a stator yoke part, the stator armature winding is wound on the stator teeth by adopting a two-phase fractional slot concentrated winding structure, and a plurality of stator teeth are provided with a stator permanent magnet at intervals;
the rotor comprises a rotor core and a rotor armature winding, the rotor core comprises rotor teeth and a rotor yoke, and the rotor armature winding is wound on the rotor teeth by adopting a three-phase fractional slot concentrated winding structure.
As a further improvement, the stator armature winding is a double-phase winding, and the composite current of the alternating current superposed direct current component is introduced, and the composite current is according to iA+、iB+、iA-、iB-The stator armature windings are sequentially led in; the rotor armature winding is a three-phase winding, and three-phase symmetrical current is introduced into the rotor armature winding according to the formula iD、iE、 iFSequentially leading into the rotor armature winding.
As a further improvement of the present invention, each phase current expression is:
Figure DEST_PATH_GDA0002705026830000021
Figure DEST_PATH_GDA0002705026830000022
Figure DEST_PATH_GDA0002705026830000023
Figure DEST_PATH_GDA0002705026830000024
Figure DEST_PATH_GDA0002705026830000025
Figure DEST_PATH_GDA0002705026830000026
Figure DEST_PATH_GDA0002705026830000027
ωes＝Nrωr
ωer＝Parωr
wherein, IacEffective value of stator AC component, IdcAs mean value of the stator DC component, ωesIs the electrical angular velocity, a, of the stator armature windingsIs the initial phase angle of the stator, IacrEffective value of rotor current, ωerIs the rotor armature winding electrical angular velocity, arIs the rotor initial phase angle, NrNumber of rotor slots, ParFor the number of pole pairs, omega, of the rotor armature windingrIs the mechanical angular velocity.
As a further improvement of the present invention, the number of pole pairs generated by the DC component of the stator armature winding is PdcHas a static magnetomotive force of NrAfter the magnetic wave formed by the rotor teeth is subjected to magnetic field modulation, the number of pole pairs generated by the alternating current component of the generated rotating magnetic field and the stator armature winding is PаsWhen the fundamental wave magnetomotive force of (2) satisfies the following relationship, torque is generated;
Pas＝|Nr±Pdc|
after the rotor armature winding is electrified with alternating current, P is formedarWhen the number of pole pairs of the rotor rotating magnetic potential of the antipole is the same as the number of pole pairs of the unmodulated direct current magnetic potential generated by the direct current component of the stator, namely the following formula is met, electromagnetic torque is generated;
Pdc＝Par
when the number of stator slots is NsThe number of pole pairs with the rotor armature winding is ParWhen the following formula is satisfied, a reluctance torque component similar to that of a synchronous reluctance motor is generated;
Ns＝2Par
p formed after the rotor armature winding is electrified with alternating currentarThe rotating magnetic potential of the opposite-pole rotor passes through the number of teeth NrAfter magnetic field modulation is carried out on magnetic conduction waves formed by the rotor teeth, the generated rotating magnetic field is the same as the rotating magnetic potential pole pair number generated by the stator alternating current component, namely when the following formula is met, electromagnetic torque can be generated;
Pas＝|Nr±Par|
when the stator permanent magnet generates the number of pole pairs of PpmThe pole pair number P of the static magnetomotive force generated by the static magnetomotive force and the DC component of the stator armature windingdcWhen the same, two extra electromagnetic torques are generated, and the expression is as follows:
Pas＝|Nr±Ppm|
Ppm＝Par。
as a further improvement of the present invention, the number of slots of the stator and the rotor and the number of pole pairs are matched as follows:
Figure DEST_PATH_GDA0002705026830000031
as a further improvement of the present invention, the number of slots of the stator and the rotor satisfies the formula:
Ns＝k1ms
Nr＝k2mr
in the formula, k1、k2Is an integer, msIs the number of alternating current phases, m, of the stator armature windingrThe number of the rotor armature winding alternating current phases.
As a further improvement of the utility model, the outer contours of the rotor teeth and the rotor yoke part are concentric circular arc structures;
the outer contours of the stator teeth and the stator yoke are concentric arc structures;
the air gap is between the rotor teeth and the stator teeth.
Compared with the prior art, the method has the following advantages:
the utility model discloses a biconvex utmost point structure adopts the magnetic field modulation principle, all is provided with the winding in the stator-rotor core recess, contains supplementary permanent magnet in the stator tooth, and stator winding lets in the electric current and contains direct current part and double-phase alternating current part, and rotor winding lets in the three-phase alternating current. When the motor normally works, the two sets of windings and the stator auxiliary permanent magnets are overlapped (one stator permanent magnet is arranged at each interval of a plurality of stator teeth), mechanical torque is output, high torque density is achieved, torque can be generated when any one set of windings fails, and the fault-tolerant capability of the motor is improved. The motor torque density control device is simple in structure, strong in robustness, high in torque density and strong in fault tolerance, and further improves the motor torque density.
When the motor runs normally, the stator and rotor armature windings supply power simultaneously, and high-torque-density and high-efficiency output is achieved. When the armature winding of the motor stator or rotor fails, the power supply of the failed winding is cut off, and the torque can still be generated. When the rotor armature winding fails, the rotor armature winding is cut off to supply power, the current of the stator phase winding is reconstructed, the motor contains the first part torque and the fifth part torque, the motor operates as a stator permanent magnet auxiliary direct current bias vernier reluctance motor, and short-time full load operation is realized; when the stator armature winding fails, the stator armature winding is cut off to supply power, the current of the rotor phase winding is reconstructed, the motor contains third and sixth part of torque, the motor operates as a permanent magnet auxiliary reluctance synchronous motor, and short-time full-load operation is realized. The utility model discloses a will have extensive application prospect including but not limited to vehicle wheel hub motor drive system, aerospace, deep sea exploration and so on require the motor to have the high fault-tolerant ability of high torque density application occasion.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. a stator; 1-1, stator armature winding; 1-2, stator teeth; 1-3, stator permanent magnets; 2. an air gap; 3. a rotor; 3-1, rotor armature winding; 3-2, rotor teeth.
Fig. 2 is a connection diagram of the stator armature winding of the present invention;
fig. 3 is a connection diagram of the rotor armature winding of the present invention.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
The utility model discloses a stator 1, rotor 3, and stator 1, 3 iron cores of rotor are the salient pole structure, have the air gap between stator 1 and the rotor 3, and stator 1 includes stator core, stator armature winding 1-1 and stator permanent magnet 1-3, and rotor 3 includes rotor core and rotor armature winding 3-1.
As a preferred embodiment, the stator comprises a stator core, a stator armature winding and a stator permanent magnet, the stator core comprises stator teeth and a stator yoke, the stator armature winding is wound on the stator teeth by adopting a two-phase fractional slot concentrated winding structure, and a plurality of stator permanent magnets are arranged at intervals of one stator tooth. The rotor comprises a rotor core and a rotor armature winding, the rotor core comprises rotor teeth and a rotor yoke, and the rotor armature winding is wound on the rotor teeth in a three-phase fractional slot concentrated winding structure.
One less costly embodiment is: composite current according to iA+、iB+、iA-、iB-The stator armature windings are sequentially led in; the rotor armature winding is electrified with three-phase symmetrical current according to the formula iD、iE、iFSequentially leading into the rotor armature winding. The rotor armature winding is a three-phase winding, three-phase symmetrical current is introduced through feasible devices such as an electric brush slip ring and a rotary transformer, and the expression of each phase current is as follows:
Figure DEST_PATH_GDA0002705026830000061
Figure DEST_PATH_GDA0002705026830000062
Figure DEST_PATH_GDA0002705026830000063
Figure DEST_PATH_GDA0002705026830000064
Figure DEST_PATH_GDA0002705026830000065
Figure DEST_PATH_GDA0002705026830000066
Figure DEST_PATH_GDA0002705026830000067
ωes＝Nrωr
ωer＝Parωr
wherein, IacEffective value of stator AC component, IdcAs mean value of the stator DC component, ωesIs the electrical angular velocity, a, of the stator armature windingsIs the initial phase angle of the stator, IacrEffective value of rotor current, ωerIs the rotor armature winding electrical angular velocity, arIs the rotor initial phase angle, NrNumber of rotor slots, ParFor the number of pole pairs, omega, of the rotor armature windingrIs the mechanical angular velocity.
The number of pole pairs generated by the DC component of the stator armature winding is PdcHas a static magnetomotive force of NrAfter the magnetic wave formed by the rotor teeth is subjected to magnetic field modulation, the number of pole pairs generated by the alternating current component of the generated rotating magnetic field and the stator armature winding is PаsWhen the fundamental wave magnetomotive force of (2) satisfies the following relationship, torque is generated.
Pas＝|Nr±Pdc|
After the rotor armature winding is electrified with alternating current, P is formedarWhen the rotor rotating magnetic potential of the opposite pole is the same as the pole pair number of the unmodulated direct current magnetic potential generated by the direct current component of the stator, namely the following formula is satisfied, electromagnetic torque is generated.
Pdc＝Par
When the number of stator slots is NsThe number of pole pairs with the rotor armature winding is ParWhen the following formula is satisfied, a reluctance torque component similar to that of the synchronous reluctance motor is generated.
Ns＝2Par
P formed after the rotor armature winding is electrified with alternating currentarThe rotating magnetic potential of the opposite-pole rotor passes through the number of teeth NrAfter the magnetic wave formed by the rotor teeth is modulated by the magnetic field, the generated rotating magnetic field is the same as the rotating magnetic potential pole pair number generated by the stator alternating current component, namely, when the following formula is satisfied, the electromagnetic torque is generated.
Pas＝|Nr±Par|
When the stator permanent magnet generates the number of pole pairs of PpmThe pole pair number P of the static magnetomotive force generated by the static magnetomotive force and the DC component of the stator armature windingdcWhen the same, two extra electromagnetic torques are generated, and the expression is as follows:
Pas＝|Nr±Ppm|
Ppm＝Par
the above analysis shows that if the motor parameters are properly selected, six parts of torque will be generated:
firstly, the direct current component of the stator armature winding is modulated into a rotating magnetic field through a rotor tooth part and interacts with the rotating magnetic potential generated by the alternating current component of the stator armature winding to generate torque;
secondly, the direct current magnetic potential generated by the unmodulated direct current component of the stator armature winding interacts with the magnetic potential generated by the rotor armature winding to generate torque;
thirdly, a reluctance torque component formed by the rotor armature winding and the stator salient pole;
fourthly, the magnetic potential generated by the armature winding of the rotor is modulated by the teeth of the rotor and then interacts with the magnetic potential generated by the alternating current component of the armature winding of the stator to generate torque;
fifthly, the stator permanent magnet is modulated into a rotating magnetic field through the rotor tooth part and interacts with rotating magnetic potential generated by the alternating current component of the stator armature winding to generate torque;
sixthly, the magnetic potential generated by the permanent magnet of the stator and the magnetic potential generated by the armature winding of the rotor interact to generate torque. When the directions of the six-part torque acting on the rotor are the same, the resultant electromagnetic torque is maximum.
The number of slots and the pole pair number of the stator and the rotor which meet the three relations are matched as follows:
Figure DEST_PATH_GDA0002705026830000071
Figure DEST_PATH_GDA0002705026830000081
the number of the stator slots and the rotor slots satisfies the formula:
Ns＝k1ms
Nr＝k2mr
in the formula, k1、k2Is an integer, msIs the number of alternating current phases, m, of the stator armature windingrThe number of the rotor armature winding alternating current phases.
All other slot poles satisfying the above eight formulas and conforming to the principles described in this patent are within the scope of protection of this patent and are not listed here. In addition, the patent takes an inner rotor motor model as an example, and the outer rotor motor and the axial magnetic field motor which are consistent with the principle described in the patent, but not limited to, are all within the protection scope of the patent.
The present invention will be further explained with reference to the accompanying drawings.
Examples
Referring to fig. 1, the utility model comprises a stator 1, a rotor 3, an air gap 2 is arranged between the stator 1 and the rotor 3, the stator 1 comprises a stator armature winding 1-1, stator teeth 1-2 and stator permanent magnets 1-3, the rotor 3 comprises a rotor armature winding 3-1 and rotor teeth 3-2, the stator armature winding 1-1 is wound on the stator teeth 1-2 by adopting a structure of two-phase fractional slot concentrated winding, and the stator teeth 1-2 comprise stator permanent magnets 1-3; the rotor armature winding 3-1 is wound on the rotor teeth 3-2 by adopting a three-phase fractional slot concentrated winding structure.
Referring to fig. 2, fig. 2 is the utility model discloses stator winding connection diagram, the utility model discloses stator 1 adopts the individual layer winding altogether 8 grooves, and stator winding 1-1 is double-phase centralized winding structure, lets in direct current bias current, and direct current volume produces 4 antipodal magnetic potential, and alternating current volume produces 5 antipodal magnetic potential. And, set up a permanent magnet on the stator tooth at interval, namely set up the permanent magnet on the stator tooth that the stator winding twines, the direction of magnetizing of each permanent magnet has already been marked in fig. 2.
Referring to fig. 3, fig. 3 is the rotor winding connection diagram of the present invention, the utility model discloses rotor 3 totally 9 grooves, adopt double-layer winding, and rotor winding 3-1 adopts the centralized winding structure of three-phase, produces 4 antipodal magnetic potentials.
Composite current according to iA+、iB+、iA-、iB-The stator armature windings are sequentially led in; the rotor armature winding is electrified with three-phase symmetrical current according to the formula iD、iE、iFSequentially leading into the rotor armature winding. The rotor armature winding is a three-phase winding, three-phase symmetrical current is introduced through feasible devices such as an electric brush slip ring and a rotary transformer, and the expression of each phase current is as follows:
Figure DEST_PATH_GDA0002705026830000091
Figure DEST_PATH_GDA0002705026830000092
Figure DEST_PATH_GDA0002705026830000093
Figure DEST_PATH_GDA0002705026830000094
Figure DEST_PATH_GDA0002705026830000095
Figure DEST_PATH_GDA0002705026830000096
Figure DEST_PATH_GDA0002705026830000097
ωes＝Nrωr
ωer＝Parωr
wherein, IacEffective value of stator AC component, IdcAs mean value of the stator DC component, ωesIs the electrical angular velocity, a, of the stator armature windingsIs the initial phase angle of the stator, IacrEffective value of rotor current, ωerIs the rotor armature winding electrical angular velocity, arIs the rotor initial phase angle, NrNumber of rotor slots, ParFor the number of pole pairs, omega, of the rotor armature windingrIs the mechanical angular velocity.
In order to better explain the working principle of the motor, the present invention is described below with reference to fig. 1.
The utility model discloses the motor is decided, the cooperation of rotor slot utmost point is 8/9, and direct current component produces 4 antipodal static magnetomotive force in the stator armature winding, and alternating current component produces 5 antipodal rotating magnetomotive force, and the stator permanent magnet produces 4 antipodal static magnetomotive force, and rotor armature winding produces 4 antipodal rotating magnetomotive force. After 4 pairs of pole static magnetomotive force generated by the direct current component of the stator armature winding is modulated by the rotor tooth magnetic field, 5 pairs of pole rotating magnetic fields generated are coupled with the alternating current component magnetomotive force of the stator to generate a first part of torque component; 4 pairs of magnetic motive force generated by the unmodulated direct current component of the stator armature winding are coupled with 4 pairs of magnetic motive force generated by the rotor armature winding to generate a second part of torque component; a third partial reluctance torque component formed by the rotor armature winding and the stator salient poles; after 4 pairs of pole magnetic potentials generated by the rotor armature winding are modulated by the rotor tooth magnetic field, 5 pairs of pole magnetic fields generated are coupled with 5 pairs of pole magnetic potentials generated by the alternating current component of the stator armature winding to generate a fourth part of torque; after 4 pairs of pole magnetic potentials generated by the stator permanent magnet are modulated by a rotor tooth magnetic field, 5 pairs of pole rotating magnetic fields generated are coupled with the stator alternating current component magnetic potential to generate a fifth part of torque component; 4 pairs of pole magnetic potentials generated by the stator permanent magnet are coupled with 4 pairs of pole magnetic potentials generated by the rotor armature winding to generate a sixth part of torque component; when the directions of the six-part torque acting on the rotor are the same, the resultant electromagnetic torque is maximum.
When the rotor armature winding fails, the power supply of the rotor armature winding is cut off, the motor operates equivalently to a stator permanent magnet auxiliary two-phase direct current bias vernier reluctance motor, and short-time full load operation is realized by reconstructing the phase current of the stator; when the stator armature winding fails, the stator armature winding is cut off to supply power, the motor operates equivalently to an 8-pole permanent magnet auxiliary reluctance synchronous motor, and short-time full-load operation is realized by reconstructing rotor phase current. The novel motor has strong fault-tolerant performance and strong robustness.
The utility model discloses an improvement to motor structure, the supplementary permanent magnet of stator that adds the interval and set up sets up the permanent magnet on stator winding stator tooth promptly, makes motor torque density further increase. Compared with the situation that each stator tooth is provided with the permanent magnet, the permanent magnet is reduced in use amount and cost, and meanwhile, the magnetic field distribution of the permanent magnets is improved, so that the motor has better torque density. And the utility model discloses motor simple structure, processing is convenient, and the robustness is strong, has stronger fault-tolerant capability, when stator or rotor armature winding trouble, through to healthy phase current reconstruction, still can realize the full load operation in short time. The utility model discloses will have extensive application prospect in high torque density and high fault-tolerant ability's application scenario.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicants be construed as having contemplated such subject matter as being part of the disclosed subject matter.

Claims (7)

1.一种定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，包括均为凸极结构的定子和转子，转子和定子相对转动，定子与转子间形成环形气隙；1. a kind of stator permanent magnet interval auxiliary double armature winding multiple electromagnetic torque reluctance motor structure, it is characterized in that, comprise the stator and the rotor that are salient pole structure, the rotor and the stator rotate relative to each other, and the annular gas is formed between the stator and the rotor. gap; 所述定子包括定子铁芯、定子电枢绕组和定子永磁体，定子铁芯包含定子齿和定子轭部，定子电枢绕组采用两相分数槽集中绕组的结构缠绕在定子齿上，多个所述定子齿每间隔一个设置一定子永磁体；The stator includes a stator iron core, stator armature windings and stator permanent magnets, the stator iron core includes stator teeth and a stator yoke, and the stator armature winding adopts a structure of two-phase fractional-slot concentrated winding wound on the stator teeth. The stator teeth are provided with stator permanent magnets at intervals; 所述转子包括转子铁芯和转子电枢绕组，转子铁芯包含转子齿和转子轭部，转子电枢绕组采用三相分数槽集中绕组的结构缠绕在转子齿上。The rotor includes a rotor iron core and a rotor armature winding, the rotor iron core includes rotor teeth and a rotor yoke, and the rotor armature winding adopts a three-phase fractional slot concentrated winding structure to be wound on the rotor teeth. 2.根据权利要求1所述的定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，所述定子电枢绕组为两相绕组，通入交流叠加直流分量的复合电流，复合电流按照iA+、iB+、iA-、iB-的顺序依次通入定子电枢绕组；转子电枢绕组为三相绕组，转子电枢绕组通入三相对称电流，并按照iD、iE、iF的顺序依次通入转子电枢绕组。2. The stator permanent magnet spaced auxiliary double armature winding multiple electromagnetic torque reluctance motor structure according to claim 1 is characterized in that, the stator armature winding is a two-phase winding, and the compound of AC superimposed DC component is introduced. The current and composite current are passed into the stator armature winding in the order of i A+ , i B+ , i A- , and i B- in turn; the rotor armature winding is a three-phase winding, and the rotor armature winding is passed into a three-phase symmetrical current, and according to The sequence of i D , i E , i F leads to the rotor armature winding in turn. 3.根据权利要求2所述的定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，各相电流表达式为：3. The stator permanent magnet spacing auxiliary double armature winding multiple electromagnetic torque reluctance motor structure according to claim 2 is characterized in that, each phase current expression is:
Figure DEST_PATH_FDA0002728747920000011
Figure DEST_PATH_FDA0002728747920000011
Figure DEST_PATH_FDA0002728747920000012
Figure DEST_PATH_FDA0002728747920000012
Figure DEST_PATH_FDA0002728747920000013
Figure DEST_PATH_FDA0002728747920000013
Figure DEST_PATH_FDA0002728747920000014
Figure DEST_PATH_FDA0002728747920000014
Figure DEST_PATH_FDA0002728747920000015
Figure DEST_PATH_FDA0002728747920000015
Figure DEST_PATH_FDA0002728747920000016
Figure DEST_PATH_FDA0002728747920000016
Figure DEST_PATH_FDA0002728747920000017
Figure DEST_PATH_FDA0002728747920000017
 ωes＝Nrωr ω es =N r ω r ωer＝Parωr ω er =P ar ω r 其中，Iac为定子交流分量的有效值，Idc为定子直流分量平均值，ωes为定子电枢绕组电角速度，аs为定子初相角，Iacr为转子电流的有效值，ωer为转子电枢绕组电角速度，аr为转子初相角，Nr为转子槽数，Par为转子电枢绕组极对数，ωr为机械角速度。Among them, I ac is the effective value of the AC component of the stator, I dc is the average value of the DC component of the stator, ω es is the electrical angular velocity of the stator armature winding, а s is the initial phase angle of the stator, I acr is the effective value of the rotor current, ω er is the electrical angular velocity of the rotor armature winding, а r is the initial phase angle of the rotor, N r is the number of rotor slots, P ar is the number of pole pairs of the rotor armature winding, and ω r is the mechanical angular velocity. 4.根据权利要求1所述的定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，所述定子电枢绕组直流分量产生的极对数为Pdc的静止磁动势通过齿数为Nr的转子齿所形成的磁导波进行磁场调制后，产成的旋转磁场与定子电枢绕组交流分量产生的极对数为Pаs的基波磁动势满足如下关系时，会产生转矩；4. The stator permanent magnet spacing auxiliary double armature winding multiple electromagnetic torque reluctance motor structure according to claim 1 is characterized in that, the pole pair number generated by the DC component of the stator armature winding is a static magnetic field of P dc After the electromotive force is modulated by the magnetic conducting wave formed by the rotor teeth with the number of teeth N r , the generated rotating magnetic field and the fundamental wave magnetomotive force with the pole pair number P аs generated by the AC component of the stator armature winding satisfy the following relationship: When , torque will be generated; Pas＝|Nr±Pdc|P as =|N r ±P dc | 转子电枢绕组通入交流电后，形成Par对极的转子旋转磁势，当与定子直流分量产生的未经调制的直流磁势极对数相同，即满足下述公式时，会产生电磁转矩；After the rotor armature winding is supplied with alternating current, the rotor rotating magnetic potential of the opposite poles of P ar is formed. When the pole pairs of the unmodulated DC magnetic potential generated by the DC component of the stator are the same, that is, when the following formula is satisfied, electromagnetic rotation will be generated. moment; Pdc＝Par P dc =P ar 当定子槽数Ns与转子电枢绕组的极对数为Par满足下述公式时，将会产生类似于同步磁阻电机的磁阻转矩分量；When the number of stator slots N s and the number of pole pairs of the rotor armature winding P ar satisfy the following formula, a reluctance torque component similar to that of a synchronous reluctance motor will be generated; Ns＝2Par N s = 2P ar 转子电枢绕组通入交流电后，形成的Par对极的转子旋转磁势，经过齿数Nr的转子齿所形成的磁导波进行磁场调制后，产生的旋转磁场与定子交流分量产生的旋转磁势极对数相同，即满足下述公式时，会产生电磁转矩；After the rotor armature winding is supplied with alternating current, the rotating magnetic potential of the rotor of the opposite pole of P ar is formed, and after the magnetic conduction wave formed by the rotor teeth with the number of teeth N r is subjected to magnetic field modulation, the generated rotating magnetic field and the rotation generated by the alternating current component of the stator. The number of pole pairs of the magnetic potential is the same, that is, when the following formula is satisfied, electromagnetic torque will be generated; Pas＝|Nr±Par|P as =|N r ±P ar | 当定子永磁体产生极对数为Ppm的静止磁动势与定子电枢绕组直流分量产生的静止磁动势的极对数Pdc相同时，会产生额外的两种电磁转矩，表达式如下：When the stationary magnetomotive force with pole pairs P pm generated by the stator permanent magnet is the same as the pole pair P dc generated by the DC component of the stator armature winding, two additional electromagnetic torques will be generated, the expression as follows: Pas＝|Nr±Ppm|P as = |N r ±P pm | Ppm＝Par。P pm = Par . 5.根据权利要求4所述的定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，所述定子槽数、转子槽数和极对数配合数量为：5. The stator permanent magnet spacing auxiliary double-armature winding multiple electromagnetic torque reluctance motor structure according to claim 4, is characterized in that, the number of described stator slots, rotor slot number and pole pair number coordination quantity is:
Figure DEST_PATH_FDA0002728747920000031
Figure DEST_PATH_FDA0002728747920000031
 6.根据权利要求1所述的定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，所述定子、转子槽数满足公式：6. The stator permanent magnet spacing auxiliary double armature winding multiple electromagnetic torque reluctance motor structure according to claim 1 is characterized in that, the number of slots of the stator and the rotor satisfies the formula: Ns＝k1ms N s =k 1 m s Nr＝k2mr N r =k 2 m r 式中，k1、k2为整数，ms为定子电枢绕组交流相数，mr为转子电枢绕组交流相数。In the formula, k 1 and k 2 are integers, m s is the number of AC phases of the stator armature winding, and m r is the number of AC phases of the rotor armature winding. 7.根据权利要求1所述的定子永磁间隔辅助双电枢绕组多重电磁转矩磁阻电机结构，其特征在于，7. The stator permanent magnet spacing auxiliary double armature winding multiple electromagnetic torque reluctance motor structure according to claim 1 is characterized in that, 所述转子齿和转子轭部外部轮廓均为同心的圆弧结构；The outer contours of the rotor teeth and the rotor yoke are concentric arc structures; 所述定子齿和定子轭部外部轮廓均为同心的圆弧结构；The outer contours of the stator teeth and the stator yoke are concentric arc structures; 所述转子齿和定子齿之间为所述气隙。The air gap is between the rotor teeth and the stator teeth.
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* Cited by examiner, † Cited by third party
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CN111463930A (en) * 2020-05-09 2020-07-28 西安交通大学 Stator permanent magnet auxiliary double-armature winding multiple electromagnetic torque reluctance motor structure

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