CN112350462A - High-reliability high-temperature-resistant servo motor based on magnetic field modulation principle - Google Patents
High-reliability high-temperature-resistant servo motor based on magnetic field modulation principle Download PDFInfo
- Publication number
- CN112350462A CN112350462A CN202011128497.7A CN202011128497A CN112350462A CN 112350462 A CN112350462 A CN 112350462A CN 202011128497 A CN202011128497 A CN 202011128497A CN 112350462 A CN112350462 A CN 112350462A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- stator
- magnetizing
- servo motor
- pole
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 46
- 238000004804 winding Methods 0.000 claims abstract description 28
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 6
- 229910000756 V alloy Inorganic materials 0.000 claims description 6
- ABEXMJLMICYACI-UHFFFAOYSA-N [V].[Co].[Fe] Chemical compound [V].[Co].[Fe] ABEXMJLMICYACI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical group [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000027311 M phase Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/02—Windings characterised by the conductor material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention provides a high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle, which comprises a stator, a modulation ring rotor and a machine shell, wherein the outer circle surface of the stator is fixed on the inner circle surface of the machine shell; the stator comprises a stator core, a stator winding and a q-antipodal permanent magnet, wherein the stator winding is wound on stator teeth on the inner side of the stator core, and the permanent magnet is fixed on the inner circular surface of the stator core; the modulation ring rotor comprises a rotor core and a rotating shaft, the rotor core is fixedly arranged on the rotating shaft, and k magnetic guide teeth are formed in the outer circle of the rotor core. The motor has the advantages of simple structure, high power density, high reliability and safety, small rotational inertia, high temperature resistance and the like, and meets the requirements of the aerospace vehicle on small size, light weight, high reliability, high dynamic performance, severe environment resistance and the like of a servo system.
Description
Technical Field
The invention belongs to the technical field of permanent magnet motors, and particularly relates to a high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle.
Background
The aerospace vehicle is a new generation air-ground reciprocating system capable of realizing horizontal take-off and landing and repeated use, has the characteristics of compact space structure, high maneuvering performance, high flying speed and the like, and has great application value in the military and civil field. As a core component of the aerospace vehicle, the performance of the servo system directly determines the dynamic quality and the comprehensive efficiency of the control of the aircraft. When the aerospace vehicle executes high-mobility tasks in the near space, the servo system needs to be frequently actuated in a high-temperature environment, which provides a new challenge for the service reliability of the servo system.
At present, one of the main technical bottlenecks restricting the improvement of the service reliability of the servo system for the aerospace aircraft is the design requirement of small size and light weight, the heat generation rate of the servo motor parts can be greatly increased under the operating condition of frequent forward and reverse rotation, and the heat dissipation difficulty of the servo motor is increased under the high-temperature vacuum working environment close to the space. When the temperature rise of the stator of the servo motor is too high and exceeds the limit temperature rise of the insulating material, the motor has winding faults, and the servo motor has the risk of burning when the motor is serious, so that the working reliability of the servo motor is reduced. A layer of air gap exists between a permanent magnet rotor of a conventional servo motor and an inner cavity of a stator, and because the heat conductivity coefficient of the air gap is very low, heat generated by eddy current loss of a permanent magnet is difficult to dissipate, so that the permanent magnet is subjected to higher temperature rise, the magnetic performance of the permanent magnet is reduced and even demagnetized seriously, and the service life of the motor is influenced. In addition, the conventional servo motor mostly adopts a surface-mounted permanent magnet rotor structure, and in order to meet the requirement of high dynamic performance of a servo system, the servo motor frequently switches the high-speed forward and reverse rotation, so that the possibility of permanent magnet movement is greatly increased.
Disclosure of Invention
The invention aims to provide a high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle, so as to solve the problems of over-fast temperature rise of a stator winding, reduction of thermal stability of a permanent magnet rotor and the like caused by frequent forward and reverse rotation operation in a high-temperature environment of a conventional servo motor, and improve the high-temperature operation reliability of the servo motor.
The technical scheme adopted by the invention for realizing the aim is as follows:
a high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle comprises a stator, a modulation ring rotor and a machine shell, wherein the outer circle surface of the stator is fixed on the inner circle surface of the machine shell;
the stator comprises a stator core, a stator winding and a q-antipodal permanent magnet, wherein the stator winding is wound on stator teeth on the inner side of the stator core, and the permanent magnet is fixed on the inner circular surface of the stator core; when m symmetrical alternating current is conducted to the stator winding, 2p pole number and omega are formed1An armature rotating magnetic field of rotation speed; m, p and q are positive integers, and m is more than or equal to 3;
the modulation ring rotor comprises a rotor core and a rotating shaft, the rotor core is fixedly installed on the rotating shaft, k magnetic conduction teeth are arranged on the outer circle of the rotor core, k is equal to | p +/-q |, and k is a positive integer.
Preferably, the permanent magnet adopts a radial magnetizing structure or a special-shaped array magnetizing structure, and the magnetizing directions of two adjacent poles are opposite.
Preferably, each pole of the permanent magnet adopts a 2-piece special-shaped array structure, and each pole comprises 1 radial magnetizing permanent magnet and 1 tangential magnetizing permanent magnet which are distributed at intervals, so thatThe pole arc coefficient of the radial magnetizing permanent magnet is alphap1The pole arc coefficient of the tangential magnetizing permanent magnet is 1-alphap1。
Preferably, each pole of the permanent magnet adopts a 3-piece special-shaped array structure, each pole comprises 1 radial magnetizing permanent magnet, 1 beta angle magnetizing permanent magnet and 1-beta angle magnetizing permanent magnet which are distributed at intervals, and the pole arc coefficient of the radial magnetizing permanent magnet is alphap1The pole arc coefficients of the beta angle magnetizing permanent magnet and the-beta angle magnetizing permanent magnet are as follows
Wherein the beta angle is the included angle between the magnetizing direction and the radial direction.
Preferably, each pole of the permanent magnet adopts a 4-piece special-shaped array structure, each pole comprises 1 radial magnetizing permanent magnet, 1 beta angle magnetizing permanent magnet, 1 tangential magnetizing permanent magnet and 1-beta angle magnetizing permanent magnet which are distributed at intervals, and the pole arc coefficient of the radial magnetizing permanent magnet is alphap1The pole arc coefficient of the tangential magnetizing permanent magnet is alphap2The pole arc coefficients of the beta angle magnetizing permanent magnet and the-beta angle magnetizing permanent magnet are as follows
Preferably, the value range of the beta is 20-70 degrees.
Preferably, the shape of the magnetic conduction teeth on the rotor core is trapezoidal or sine-like.
Preferably, the stator core is made of a silicon steel sheet, an amorphous ferromagnetic composite material, an SMC soft magnetic composite material or an iron-cobalt-vanadium alloy material; the stator winding adopts high-temperature resistant enameled wire; the permanent magnet is a samarium cobalt permanent magnet; the rotor iron core is made of silicon steel sheet materials or iron-cobalt-vanadium alloy materials.
Preferably, the rotational speed ω of the modulation ring rotor is set to be equal to or greater than the rotational speed ω of the modulation ring rotor2Comprises the following steps:
wherein, ω is1Armature rotating magnetic field rotating speed generated by electrifying the stator winding;
electromagnetic torque T acting on stator and modulation ring rotor1、T2Satisfy T2＝-T1，k＝|p±q|。
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle. The stator winding adopts high-temperature resistant enameled wires, so that the service life of the winding is prolonged; the permanent magnet is arranged on the stator, so that the problems that the traditional permanent magnet rotor is difficult to dissipate heat and the permanent magnet is easy to demagnetize are solved; the rotor has no winding or permanent magnet, has the advantages of low rotational inertia, excellent running capability at high speed and high temperature, and is suitable for working environments with high requirements on dynamic performance. The servo system has the advantages of simple structure, high power density, high reliability and safety, small rotational inertia, high temperature resistance and the like, and meets the requirements of the aerospace vehicle on small size, light weight, high reliability, high dynamic performance, severe environment resistance and the like of the servo system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of the stator of FIG. 1;
FIG. 3 is a schematic structural view of the modulation ring rotor of FIG. 1;
fig. 4 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor according to embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor according to embodiment 3 of the present invention;
fig. 6 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor according to embodiment 4 of the present invention;
fig. 7 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor according to embodiment 5 of the present invention;
fig. 8 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor according to embodiment 6 of the present invention;
fig. 9 is a schematic structural diagram of a high-reliability high-temperature-resistant servo motor according to embodiment 7 of the present invention.
Wherein the figures include the following reference numerals:
1. a stator; 2. a modulation ring rotor; 3. a housing; 101. a stator core; 102. a stator winding; 103. a permanent magnet; 201. a rotor core; 202. a rotating shaft; 20101. and magnetic conduction teeth.
Detailed Description
The following provides a detailed description of specific embodiments of the present invention. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the device structures and/or processing steps that are closely related to the scheme according to the present invention are shown in the drawings, and other details that are not so relevant to the present invention are omitted.
Example 1: as shown in fig. 1, the high-reliability high-temperature-resistant servo motor in the present embodiment includes a stator 1, a modulation ring rotor 2, and a casing 3. As shown in fig. 1, an outer circumferential surface of a stator 1 is fixed on an inner circumferential surface of a casing 3, a modulation ring rotor 2 is disposed inside the stator 1, and an air gap is provided between the modulation ring rotor 2 and the stator 1, the air gap having a length of L.
As shown in fig. 2, the stator 1 includes a stator core 101, a high temperature resistant m-phase stator winding 102, and a q-antipole permanent magnet 103, the high temperature resistant m-phase stator winding 102 is wound around the stator teeth on the inner side of the stator core 101, and the permanent magnet 103 is fixed on the inner circular surface of the stator core 101. When m symmetrical alternating current is supplied to the stator winding 102, 2p poles and omega are formed1A rotating magnetic field of rotational speed. The permanent magnet 103 can adopt a radial magnetizing structure or a special-shaped array magnetizing structure to generate a fixed permanent magnetic field with 2q poles. m, p and q are positive integers, and m is more than or equal to 3.
As shown in fig. 3, the modulation ring rotor 2 includes a rotor core 201 and a rotating shaft 202, the rotor core 201 is fixedly mounted on the rotating shaft 202, and k magnetic conductive teeth 20101 are opened on the outer circumference of the rotor core 201 as the rotating shaft 202 rotates, so as to perform a magnetic field modulation function, and satisfy the relationship of k ═ p ± q |, where k is a positive integer.
The following explains the operation principle of the motor of the present embodiment:
when m symmetrical alternating current with the frequency f is fed to the stator winding 102, 2p poles and omega are formed1Armature rotating field of rotation speed, omega160f/p, wherein m and p are positive integers, and m is more than or equal to 3. The armature rotating magnetic field generates a significant fixed armature harmonic magnetic field with the same pole number as the permanent magnet 103 on the inner circular surface of the stator core 101 in the air gap L through the modulation action of the k magnetic conductive teeth 20101 on the rotor core 201 in the modulation ring rotor 2, and generates constant electromagnetic torque to act on the modulation ring rotor 2 and the stator 1 respectively through the interaction of the fixed permanent magnetic field of the permanent magnet 103 and the modulated fixed armature harmonic magnetic field.
The permanent magnet 103 may establish a fixed permanent magnetic field of 2q poles, q being a positive integer. The fixed permanent magnetic field generates a significant permanent magnetic harmonic magnetic field with the same pole number and rotating speed as the stator winding armature rotating magnetic field in the air gap L through the modulation action of the k magnetic conduction teeth 20101 on the rotor core 201 in the modulation ring rotor 2, and generates constant electromagnetic torque to act on the modulation ring rotor 2 and the stator 1 respectively through the interaction of the stator winding armature rotating magnetic field and the modulated significant permanent magnetic harmonic magnetic field.
Armature rotating magnetic field rotating speed omega generated by electrifying stator winding 1021And a modulation ringRotational speed ω of rotor 22Satisfy the relation:
wherein "-" represents ω1And omega2Opposite in direction of rotation.
Electromagnetic torque T acting on stator 1 and modulation ring rotor 21、T2Satisfy the relation:
T2＝-T1k＝|p±q| (3)
wherein "-" represents T1And T2In the opposite direction.
When the servo motor works, m symmetrical alternating current with the frequency f is fed into the stator winding 102 to drive the modulation ring rotor 2 to rotate at the rotating speed omega2And rotating to realize the electromechanical energy conversion function.
Example 2: as shown in fig. 4, the present embodiment is different from embodiment 1 in that the permanent magnet 103 adopts a radial magnetizing structure, and the magnetizing directions of two adjacent poles are opposite. The other composition and connection were the same as in example 1. The permanent magnet 103 with the structure is simple to process and magnetize.
Example 3: as shown in fig. 5, the difference between this embodiment and embodiment 1 is that the permanent magnet 103 has a special-shaped array structure with 2 blocks per pole, one pole is formed by 1 radial magnetizing permanent magnet and 1 tangential magnetizing permanent magnet distributed at intervals, and the pole arc coefficient of the radial magnetizing permanent magnet is αp1The pole arc coefficient of the tangential magnetizing permanent magnet is 1-alphap1And the magnetizing directions of two adjacent poles are opposite. The other composition and connection were the same as in example 1.
Example 4: as shown in fig. 6, the present embodiment is different from embodiment 1 in that the permanent magnet 103 adopts a special-shaped array structure with 3 blocks per pole, one pole is formed by 1 radial magnetizing permanent magnet, 1 beta angle magnetizing permanent magnet and 1-beta angle magnetizing permanent magnet which are distributed at intervals,the pole arc coefficient of the radial magnetizing permanent magnet is alphap1The coefficient of polar arc of the beta angle magnetizing permanent magnet and the-beta angle magnetizing permanent magnet is
The magnetizing directions of two adjacent poles are opposite, wherein the beta angle is an included angle between the magnetizing direction and the radial direction, and the preferable value range of beta is 20-70 degrees. The other composition and connection were the same as in example 1.
Example 5: as shown in fig. 7, the difference between this embodiment and embodiment 1 is that the permanent magnet 103 has a special-shaped array structure with 4 blocks per pole, one pole is formed by 1 radial magnetizing permanent magnet, 1 β -angle magnetizing permanent magnet, 1 tangential magnetizing permanent magnet, and 1- β -angle magnetizing permanent magnet distributed at intervals, and the pole arc coefficient of the radial magnetizing permanent magnet is αp1The pole arc coefficient of the tangential magnetizing permanent magnet is alphap2The coefficient of polar arc of the beta angle magnetizing permanent magnet and the-beta angle magnetizing permanent magnet is
The magnetizing directions of two adjacent poles are opposite. The other composition and connection were the same as in example 1.
In embodiments 3-5, the permanent magnet 103 adopts a special-shaped array magnetizing structure, the magnetic field is in a quasi-sinusoidal direction, and the air gap magnetic density is greater than that of radial magnetization.
Example 6: as shown in fig. 8, the present embodiment is different from embodiment 1 in that the shape of the magnetically conductive teeth 20101 on the rotor core 201 in the modulation ring rotor 2 is trapezoidal. The other composition and connection were the same as in example 1.
Example 7: as shown in fig. 9, the present embodiment is different from embodiment 1 in that the shape of the magnetic conductive teeth 20101 on the rotor core 201 in the modulation ring rotor 2 is sine-like, and the magnetic field modulation effect is good. The other composition and connection were the same as in example 1.
In embodiments 1 to 7, the stator core 101 is made of a silicon steel sheet, an amorphous ferromagnetic composite material, an SMC soft magnetic composite material, or an iron-cobalt-vanadium alloy material; the stator winding 102 adopts high-temperature-resistant enameled wires, so that the service life of the winding is prolonged; the permanent magnet 103 is a samarium cobalt permanent magnet, is high temperature resistant, meets the use requirement of the aerospace craft, and is fixed on the inner surface of the stator core 101 in a sticking way and the like; the modulation ring rotor core 201 is made of silicon steel sheet material or iron-cobalt-vanadium alloy material.
The many features and advantages of these embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of these embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The invention has not been described in detail and is in part known to those of skill in the art.
Claims (9)
1. A high-reliability high-temperature-resistant servo motor based on a magnetic field modulation principle is characterized by comprising a stator, a modulation ring rotor and a machine shell, wherein the outer circle surface of the stator is fixed on the inner circle surface of the machine shell;
the stator comprises a stator core, a stator winding and a q-antipodal permanent magnet, wherein the stator winding is wound on stator teeth on the inner side of the stator core, and the permanent magnet is fixed on the inner circular surface of the stator core; when m symmetrical alternating current is conducted to the stator winding, 2p pole number and omega are formed1An armature rotating magnetic field of rotation speed; m, p and q are positive integers, and m is more than or equal to 3;
the modulation ring rotor comprises a rotor core and a rotating shaft, the rotor core is fixedly installed on the rotating shaft, k magnetic conduction teeth are arranged on the outer circle of the rotor core, k is equal to | p +/-q |, and k is a positive integer.
2. The servo motor of claim 1, wherein the permanent magnet has a radial magnetizing structure or a special-shaped array magnetizing structure, and the magnetizing directions of two adjacent poles are opposite.
3. The servo motor of claim 2, wherein each pole of the permanent magnet has a 2-piece special-shaped array structure, each pole comprises 1 radial magnetizing permanent magnet and 1 tangential magnetizing permanent magnet which are distributed at intervals, and the pole arc coefficient of the radial magnetizing permanent magnet is αp1The pole arc coefficient of the tangential magnetizing permanent magnet is 1-alphap1。
4. The servo motor of claim 2, wherein each pole of the permanent magnet has a 3-piece special-shaped array structure, each pole comprises 1 radial magnetizing permanent magnet, 1 β -angle magnetizing permanent magnet and 1- β -angle magnetizing permanent magnet, and the radial magnetizing permanent magnet has a pole arc coefficient of αp1The pole arc coefficients of the beta angle magnetizing permanent magnet and the-beta angle magnetizing permanent magnet are as follows
Wherein the beta angle is the included angle between the magnetizing direction and the radial direction.
5. The servo motor of claim 2, wherein each pole of the permanent magnet has a special-shaped array structure of 4 blocks, each pole comprises 1 radial magnetizing permanent magnet, 1 beta magnetizing permanent magnet, 1 tangential magnetizing permanent magnet and 1-beta magnetizing permanent magnet, and the arc coefficient of the radial magnetizing permanent magnet is αp1The pole arc coefficient of the tangential magnetizing permanent magnet is alphap2The pole arc coefficients of the beta angle magnetizing permanent magnet and the-beta angle magnetizing permanent magnet are as follows
6. The high-reliability high-temperature-resistant servo motor as claimed in claim 4 or 5, wherein the value of β is in the range of 20-70 degrees.
7. The servo motor as claimed in claim 1, wherein the shape of the magnetic teeth of the rotor core is trapezoidal or sinusoidal-like.
8. The servo motor of claim 1, wherein the stator core is made of silicon steel sheet, amorphous ferromagnetic composite material, SMC soft magnetic composite material or iron-cobalt-vanadium alloy material; the stator winding adopts high-temperature resistant enameled wire; the permanent magnet is a samarium cobalt permanent magnet; the rotor iron core is made of silicon steel sheet materials or iron-cobalt-vanadium alloy materials.
9. The servo motor as claimed in claim 1, wherein the modulation ring rotor rotates at a speed ω2Comprises the following steps:
wherein, ω is1Armature rotating magnetic field rotating speed generated by electrifying the stator winding;
electromagnetic torque T acting on stator and modulation ring rotor1、T2Satisfy T2＝-T1，k＝|p±q|。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128497.7A CN112350462A (en) | 2020-10-21 | 2020-10-21 | High-reliability high-temperature-resistant servo motor based on magnetic field modulation principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128497.7A CN112350462A (en) | 2020-10-21 | 2020-10-21 | High-reliability high-temperature-resistant servo motor based on magnetic field modulation principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112350462A true CN112350462A (en) | 2021-02-09 |
Family
ID=74359409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011128497.7A Pending CN112350462A (en) | 2020-10-21 | 2020-10-21 | High-reliability high-temperature-resistant servo motor based on magnetic field modulation principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112350462A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888164A (en) * | 2010-07-26 | 2010-11-17 | 东南大学 | Low-speed high-thrust single-air gap magnetic gear composite linear electric motor |
| CN102118072A (en) * | 2011-01-26 | 2011-07-06 | 东南大学 | Automatic accelerating permanent-magnet direct-drive motor |
| CN102570770A (en) * | 2012-01-17 | 2012-07-11 | 东南大学 | Low-speed high-torque permanent-magnet cursor linear wave generator |
| CN104917310A (en) * | 2015-06-29 | 2015-09-16 | 中国船舶重工集团公司第七一二研究所 | Low-speed reluctance motor and manufacturing method thereof |
| CN111030329A (en) * | 2019-11-29 | 2020-04-17 | 北京自动化控制设备研究所 | Multi-phase permanent magnet fault-tolerant servo motor |
| CN111106685A (en) * | 2019-11-29 | 2020-05-05 | 北京自动化控制设备研究所 | Permanent magnet motor based on magnetic pole special-shaped array |
| CN111262359A (en) * | 2020-02-17 | 2020-06-09 | 南京航空航天大学 | High-torque-density flux reversal motor |
-
2020
- 2020-10-21 CN CN202011128497.7A patent/CN112350462A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888164A (en) * | 2010-07-26 | 2010-11-17 | 东南大学 | Low-speed high-thrust single-air gap magnetic gear composite linear electric motor |
| CN102118072A (en) * | 2011-01-26 | 2011-07-06 | 东南大学 | Automatic accelerating permanent-magnet direct-drive motor |
| CN102570770A (en) * | 2012-01-17 | 2012-07-11 | 东南大学 | Low-speed high-torque permanent-magnet cursor linear wave generator |
| CN104917310A (en) * | 2015-06-29 | 2015-09-16 | 中国船舶重工集团公司第七一二研究所 | Low-speed reluctance motor and manufacturing method thereof |
| CN111030329A (en) * | 2019-11-29 | 2020-04-17 | 北京自动化控制设备研究所 | Multi-phase permanent magnet fault-tolerant servo motor |
| CN111106685A (en) * | 2019-11-29 | 2020-05-05 | 北京自动化控制设备研究所 | Permanent magnet motor based on magnetic pole special-shaped array |
| CN111262359A (en) * | 2020-02-17 | 2020-06-09 | 南京航空航天大学 | High-torque-density flux reversal motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109274240B (en) | Composite amorphous alloy axial flux motor | |
| WO2019164933A1 (en) | Electric motors for aircraft propulsion and associated systems and methods | |
| WO2020001291A1 (en) | Disc-type three-degree-of-freedom magnetic suspension switched reluctance motor | |
| CN1945940A (en) | Integrated permanent magnet rotor magnetic suspension high speed motor | |
| CN101577448A (en) | Fan-shaped motor | |
| CN102315707A (en) | Mixed-excitation high-efficiency motor based on Halbach array | |
| CN107420321A (en) | A kind of Permanent magnet axial flux frequency conversion fan | |
| AU2017424910B2 (en) | Electrical machine | |
| WO2020160698A1 (en) | Magnetic kinetic energy inertial power generation device | |
| WO2022042391A1 (en) | Permanent magnet rotating armature type motor for mechanically adjusting magnetic field | |
| WO2020001294A1 (en) | Five-degree-of-freedom bearingless switched reluctance motor | |
| CN105790543B (en) | A kind of coil stationary type electromagnetic eddy governor | |
| CN110971099A (en) | Stator coreless Halbach array bearingless permanent magnet synchronous motor | |
| WO2021000588A1 (en) | Co-axial dual-rotor variable-speed electromagnetic transmission | |
| CN112350462A (en) | High-reliability high-temperature-resistant servo motor based on magnetic field modulation principle | |
| CN116633099A (en) | Production method of electromagnetic and permanent magnet invisible magnetic pole hybrid excitation rotor | |
| CN111106685A (en) | Permanent magnet motor based on magnetic pole special-shaped array | |
| CN214900393U (en) | Rotor squirrel cage structure suitable for tangential magnetization type permanent magnet motor | |
| CN113193724B (en) | Low-inertia wide-speed-range permanent magnet eddy current brake | |
| CN114696501A (en) | Semi-superconducting super-efficient energy-saving motor | |
| CN210693744U (en) | Permanent magnet eddy current transmission reaction kettle | |
| CN116436245B (en) | Reluctance motor for air compressor | |
| CN110635639A (en) | Radial magnetic field composite double-power current motor | |
| CN115664079A (en) | Electric propulsion ducted fan and aircraft | |
| CN109347367A (en) | A kind of air gap unipolarity magnetic suspension self bearing 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |