A radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing

Abstract

The present invention discloses a radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing, comprising a rotating assembly, including a rotating part and a stator body arranged on the periphery of the rotating part; a suspension assembly, arranged on the outer side of the rotating shaft of the rotating part; and a permanent magnet, located between the suspension assembly and the stator body; the magnetic bearing stator yoke of the suspension assembly is arranged on one side of the permanent magnet; the magnetic bearing stator salient pole of the suspension assembly is arranged on the inner wall of the magnetic bearing stator yoke; the present invention proposes using permanent magnets to generate a bias magnetic field, using electromagnets to provide a control magnetic field, and the control magnetic field interacts with the excitation magnetic field to generate a controllable radial suspension force, and using the radial suspension force to put the rotating shaft in a contactless state, thereby eliminating the friction loss caused by mechanical contact when the rotating shaft rotates, and realizing stable suspension in two radial degrees of freedom.

Description

Technical Field

[0001] The present invention relates to the field of motor technology, and in particular to a radial flux double-salient pole permanent magnet motor integrated with a radial magnetic bearing. Background Art

[0002] Using magnetic force to make an object levitate without contact is an ancient dream of mankind. In 1842, Professor S. Earnshaw of Cambridge University in the United Kingdom theoretically proved that permanent magnets alone cannot keep an object levitated stably in all six degrees of freedom in space. In order to make the force obtained by ferromagnets be used for stable free suspension, the magnetic field must be continuously adjusted according to the suspension state of the object, that is, a controllable electromagnet is used. In 1937, German Kemper successfully used a controllable electromagnet to stably suspend an object with a mass of 210Kg and obtained a patent for magnetic levitation technology. This experimental device was the predecessor of the magnetic levitation train that appeared later. Subsequently, magnetic levitation technology attracted the attention of scholars at home and abroad and developed rapidly.

[0003] Magnetic bearings (abbreviated as magnetic bearings) are a new type of high-performance bearing that uses magnetic force to suspend the rotor in space, so that there is no mechanical contact between the rotor and the stator. Since there is no friction between the stator and the rotor, the rotor speed is only limited by the strength of the material. The rotor of the magnetic bearing can reach a very high operating speed, and the operating state of the rotor can be detected and controlled in real time by the control system. It has the advantages of low loss, no need for lubrication medium, long life, low noise, and no pollution. It has broad application prospects in high-tech fields such as energy, transportation, ultra-high-speed and ultra-precision processing, aerospace, and robotics.

[0004] Magnetic bearings can be divided into the following three categories according to the way the magnetic force is provided:

[0005] (1) Active magnetic bearings, also known as active magnetic bearings (AMB), are characterized by controllable magnetic fields. They generate a time-varying magnetic field by controlling the current in the electromagnet coil, which is used to adjust the suspension force required by the bearing to ensure that the rotor system is stably suspended at the target position. Active magnetic bearings have high stiffness, can be precisely controlled, and have strong anti-interference capabilities, but they are relatively large in size, weight, and power consumption.

[0006] (2) Passive magnetic bearings, also known as passive magnetic bearings (PMB), use the characteristics of permanent magnets or superconductors to achieve stable suspension of some of the freedom degrees of the rotor. The magnetic field of passive magnetic bearings is uncontrollable. Since there is no control current, power consumption is reduced and the volume is smaller. However, this type of magnetic bearing lacks active control capabilities and has relatively low stiffness and damping. It is generally only used to support objects in one direction or to reduce the load acting on traditional bearings.

[0007] (3) Hybrid Magnetic Bearing (HMB) combines the advantages of both. It uses permanent magnets to replace the electromagnets in active magnetic bearings to generate a bias magnetic field. The electromagnet only provides a control magnetic field to balance the load or interference, which greatly reduces the power loss caused by the bias current. The ampere-turns required by the electromagnet are much lower than those of active magnetic bearings, which reduces the size of the magnetic bearings, reduces its weight, and improves its load-bearing capacity.

[0008] The doubly salient permanent magnet motor is developed from the switched reluctance motor. It not only has the high power density and high efficiency characteristics of the traditional permanent magnet motor, but also inherits the rotor structure of the switched reluctance motor, that is, the rotor has no windings and no permanent magnets, thus avoiding the irreversible demagnetization phenomenon caused by the shedding of magnetic steel and the heating of the rotor when the motor runs at high speed. In the process of controlling the rotation of the shaft, ordinary doubly salient permanent magnet motors will produce friction losses due to the inevitable mechanical contact, which greatly reduces the life of the bearings and increases the maintenance workload. Summary of the invention

[0009] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0010] The present invention is proposed to solve the technical problem that in the process of controlling the rotation of the rotating shaft, the existing ordinary double-salient pole permanent magnet motor has inevitable mechanical contact, thereby generating friction loss, greatly reducing the life of the bearing and increasing the maintenance workload.

[0011] Therefore, an object of the present invention is to provide a radial flux doubly salient permanent magnet motor with integrated radial magnetic bearings.

[0012] In order to solve the above technical problems, the present invention provides the following technical solutions: a radial flux double-salient-pole permanent magnet motor integrated with a radial magnetic bearing, comprising:

[0013] A rotating assembly, comprising a rotating member and a stator body disposed on the periphery of the rotating member;

[0014] A suspension assembly is arranged outside the rotating shaft of the rotating member; and

[0015] The permanent magnet is located between the suspension assembly and the stator body.

[0016] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing described in the present invention, the stator yoke of the magnetic bearing of the suspension assembly is arranged on one side of the permanent magnet.

[0017] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing described in the present invention, the salient poles of the magnetic bearing stator of the suspension assembly are arranged on the inner wall of the magnetic bearing stator yoke.

[0018] As a preferred solution of the radial flux double-pole permanent magnet motor with integrated radial magnetic bearings described in the present invention, the suspension component also includes a magnetic bearing control winding and a magnetic bearing rotor, the magnetic bearing control winding is wound around the periphery of the magnetic bearing stator salient pole, and the magnetic bearing rotor is arranged on the outside of the rotating shaft and located on the inside of the magnetic bearing stator salient pole.

[0019] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing described in the present invention, a gap is provided between the magnetic bearing rotor and the salient poles of the magnetic bearing stator.

[0020] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing described in the present invention, wherein: the permanent magnet is an annular structure.

[0021] As a preferred solution of the radial flux double salient pole permanent magnet motor integrated with radial magnetic bearings described in the present invention, wherein: the rotating member further includes a motor rotor salient pole and a motor rotor yoke, the motor rotor salient pole is arranged on the motor rotor yoke, and the motor rotor yoke is arranged on the outer side of the rotating shaft;

[0022] Wherein, the magnetic bearing rotor is arranged on one side of the motor rotor yoke.

[0023] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing described in the present invention, a gap is provided between the motor rotor salient poles and the motor stator salient poles of the stator body.

[0024] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing described in the present invention, the motor stator salient poles of the stator body are arranged on the inner wall of the motor stator yoke of the stator body.

[0025] As a preferred solution of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearings described in the present invention, the stator body also includes an armature winding, and the armature winding is wound around the periphery of the motor stator salient poles.

[0026] Beneficial effects of the present invention: The present invention proposes using a permanent magnet to generate a bias magnetic field, using an electromagnet to provide a control magnetic field, and the control magnetic field interacts with the excitation magnetic field to generate a controllable radial suspension force. The radial suspension force is used to put the rotating shaft in a contactless state, eliminating the friction loss caused by mechanical contact when the rotating shaft rotates, and realizing stable suspension in two radial degrees of freedom. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0028] Figure 1 It is a schematic diagram of the overall structure of the radial flux double-salient pole permanent magnet motor integrated with radial magnetic bearings of the present invention (taking the structure of the double-salient pole permanent magnet motor of the rotating assembly with six stator poles and four rotor poles as an example).

[0029] Figure 2 This is a schematic diagram of the exploded structure of the radial flux double-salient pole permanent magnet motor integrated with radial magnetic bearings of the present invention (taking the magnetic bearing stator of the suspension component adopts a four-pole structure; the double-salient pole permanent magnet motor of the rotating component adopts a six-pole stator and four-pole rotor structure as an example).

[0030] Figure 3 It is a schematic cross-sectional structure diagram of the radial flux double-salient pole permanent magnet motor integrated with a radial magnetic bearing according to the present invention.

[0031] Figure 4 The schematic diagram of the excitation magnetic field of the radial flux double-salient pole permanent magnet motor integrated with the radial magnetic bearing of the present invention is shown.

[0032] Figure 5 Schematic diagram of the control magnetic field of the radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing of the present invention (taking the magnetic bearing stator of the suspension component with a four-pole structure and current flowing in the vertical direction as an example). DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Example 1

[0038] Reference Figure 1 , provides a schematic diagram of the overall structure of a radial flux doubly salient permanent magnet motor with integrated radial magnetic bearings, such as Figure 1 A radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing includes a rotating assembly 100, including a rotating member 101 and a stator body 102 arranged on the periphery of the rotating member 101; a suspension assembly 200, arranged on the outside of a rotating shaft 101a of the rotating member 101; and a permanent magnet 300, located between the suspension assembly 200 and the stator body 102.

[0039] Specifically, the main structure of the present invention includes a rotating component 100, a suspension component 200 and a permanent magnet 300. By cooperating with each other, the rotating component 100 and the suspension component 200 can be used to make the rotating shaft in a contactless state by using radial suspension force, thereby eliminating the friction loss caused by mechanical contact when the rotating shaft rotates, and realizing stable suspension in two radial degrees of freedom. Among them, the rotating component 100 is an output mechanism of the motor power, which includes a rotating member 101 and a stator body 102 arranged on the periphery of the rotating member 101; and the suspension component 200 provides radial suspension force for the rotating shaft 101a, thereby providing conditions for the rotating shaft to be in a contactless state, and is arranged on the outside of the rotating shaft 101a of the rotating member 101; the permanent magnet 300 is located between the suspension component 200 and the stator body 102.

[0040] It should be noted that the permanent magnet 300 is an annular structure, and its magnetization direction is radial.

[0041] Example 2

[0042] Reference Figure 2 , this embodiment is different from the first embodiment in that: the suspension component 200 includes a magnetic bearing stator yoke 201, a magnetic bearing stator salient pole 202, a magnetic bearing control winding 203 and a magnetic bearing rotor 204, and the magnetic bearing stator yoke 201, the magnetic bearing stator salient pole 202, the magnetic bearing control winding 203 and the magnetic bearing rotor 204 can respectively provide a bias magnetic field and a control magnetic field, and generate a controllable radial suspension force when the control magnetic field interacts with the excitation magnetic field, so that the friction loss caused by the mechanical contact when the shaft rotates is eliminated, and stable suspension in two radial degrees of freedom is achieved. Specifically, the magnetic bearing stator yoke 201 of the suspension component 200 is arranged on one side of the permanent magnet 300, wherein the magnetic bearing stator salient pole 202 of the suspension component 200 is fixedly arranged on the inner wall of the magnetic bearing stator yoke 201.

[0043] It should be noted that the magnetic bearing stator yoke 201 is cylindrical, and its inner and outer diameters are equal to those of the permanent magnet 300 , and there are at least three magnetic bearing stator salient poles 202 , all of which are evenly and fixedly distributed on the inner wall of the magnetic bearing stator yoke 201 .

[0044] Furthermore, the suspension component 200 also includes a magnetic bearing control winding 203 and a magnetic bearing rotor 204. The magnetic bearing control winding 203 is wound around the periphery of the magnetic bearing stator salient pole 202. The magnetic bearing stator yoke 201, the magnetic bearing stator salient pole 202, the bearing control winding 203 and the magnetic bearing rotor 204 together constitute an electromagnet. The magnetic bearing rotor 204 is fixedly sleeved on the outside of the rotating shaft 101a and is located on the inside of the magnetic bearing stator salient pole 202. The number of the magnetic bearing stator salient poles 202 is equal to the number of the magnetic bearing control winding 203. The magnetic bearing rotor 204 is cylindrical and rotates synchronously with the rotating shaft 101a.

[0045] It should be noted that a gap is provided between the magnetic bearing rotor 204 and the magnetic bearing stator salient pole 202 , and the gap is a radial gap, and the radial gap range is: 0.4mm-1mm.

[0046] Example 3

[0047] Reference Figure 2This embodiment is different from the above embodiments in that the rotating member 101 also includes a motor rotor salient pole 101b and a motor rotor yoke 101c. The rotating shaft 101a, the motor rotor salient pole 101b and the motor rotor yoke 101c constitute the rotor of the motor, which can provide power for various machines. Specifically, the rotating part 101 also includes a motor rotor salient pole 101b and a motor rotor yoke 101c. The motor rotor salient pole 101b is arranged on the motor rotor yoke 101c, and the motor rotor yoke 101c is arranged on the outer side of the rotating shaft 101a; wherein, the magnetic bearing rotor 204 is arranged on the rotating shaft 101a. It should be noted that the motor rotor yoke 101c is cylindrical, and the cylindrical motor rotor yoke 101c is sleeved on the rotating shaft 101a and rotates synchronously with the rotating shaft 101a. The upper edge of the outer cylinder surface of the motor rotor yoke 101c protrudes outward in a direction perpendicular to the axis of the rotating shaft 101a and is provided with multiple (at least three) motor rotor salient poles 101b. The motor rotor salient poles 101b are evenly distributed, and the rotating shaft 101a, the motor rotor yoke 101c and the multiple motor rotor salient poles 101b constitute the rotor part of the motor.

[0048] Furthermore, a gap is provided between the motor rotor salient pole 101b and the motor stator salient pole 102a of the stator body 102, and the gap is a radial gap, and the radial gap is: 0.5mm-1mm.

[0049] Among them, the motor stator salient pole 102a of the stator body 102 is arranged on the inner wall of the motor stator yoke 102b of the stator body 102. Specifically, the motor stator salient pole 102a is convex and arranged on the inner cylinder surface of the motor stator yoke 102b along the axial center; wherein, the permanent magnet 300 is arranged between the motor stator yoke 102b and the magnetic bearing stator yoke 201 and is connected to the motor stator yoke 102b and the end side wall of the magnetic bearing stator yoke 201. It should be noted that the inner and outer diameters of the motor stator yoke 102b are equal to the inner and outer diameters of the magnetic bearing stator yoke 201, and it has multiple motor stator salient poles 102a (at least two are arranged), and the motor stator salient poles 102a are evenly distributed on the inner wall of the motor stator yoke 102b. It should be emphasized that the number of motor stator salient poles 102a and motor rotor salient poles 101b is set in accordance with the matching standard of the number of stator poles and rotor poles of the double salient pole motor.

[0050] Furthermore, the stator body 102 also includes an armature winding 102c, which is wound around the periphery of the motor stator salient pole 102a. It should be noted that the number of the armature winding 102c is the same as the number of the motor stator salient poles 102a. Multiple motor stator salient poles 102a, the motor stator yoke 102b and the armature winding 102c wound around each motor stator salient pole 102a constitute the stator part of the motor.

[0051] It should be noted that both the rotor and the stator are salient pole tooth slot structures, the annular permanent magnets generate an excitation magnetic field, and a control magnetic field is generated when current is passed through the magnetic bearing control winding 203. When current is passed through the armature winding 102c, an armature magnetic field is generated. When the double-pole motor operates as a motor, the armature magnetic field and the excitation magnetic field interact to generate torque; when operating as a generator, when the rotor rotates, the flux period of the salient poles of the motor stator changes, and a coil is wound around the salient poles of the motor stator, which will induce an electric potential on the coil; the control magnetic field interacts with the excitation magnetic field to generate a controllable radial suspension force.

[0052] Principle: After the current is passed through the magnetic bearing control winding 203, a magnetic circuit is formed through the magnetic bearing stator salient pole 202, the magnetic bearing stator yoke 201, and the magnetic bearing rotor 204, and a control magnetic field is established in the air gap between the magnetic bearing stator salient pole 202 and the magnetic bearing rotor 204; its basic working principle (taking the magnetic bearing stator with a four-pole structure and current passing in the vertical direction as an example) is: when the magnetic bearing rotor 204 is located in the middle position in the radial direction, due to the symmetry of the structure, the bias flux generated by the annular permanent magnet is on the magnetic axis The air gap above the bearing rotor 204 is equal to the air gap below, and the upper and lower suction forces are equal at this time; if the magnetic bearing rotor 204 is subjected to a downward external disturbance force at this time, the magnetic bearing rotor 204 will deviate from the equilibrium position and move downward, causing the magnetic flux of the bias magnetic field in the upper and lower air gaps generated by the annular permanent magnet to change, that is, the upper air gap increases, and the magnetic flux of the bias magnetic field in the air gap decreases; the lower air gap decreases, and the magnetic flux of the bias magnetic field in the air gap increases; because when the magnetic pole area is constant, the magnetic field suction force is equal to the magnetic flux of the magnetic field. The magnetic bearing rotor 204 is directly proportional to the magnetic bearing rotor 204, so the upward suction force is smaller than the downward suction force; before the current is not passed through the control winding 203, the magnetic bearing rotor 204 cannot return to the equilibrium position; at this time, the displacement sensor detects the displacement of the shaft from its reference position, the controller converts this displacement signal into a control signal, and the power amplifier converts this control signal into a control current. This current flows through the control winding 203 to establish a control magnetic field in the iron core and the radial air gap. The control magnetic field and the bias magnetic field in the radial air gap are superimposed, so that the magnetic flux of the magnetic field in the radial air gap above the magnetic bearing rotor 204 increases, and the magnetic flux of the magnetic field in the radial air gap below decreases, thereby generating an upward suction force to pull the magnetic bearing rotor 204 back to the equilibrium position; similarly, no matter the magnetic bearing rotor 204 is subjected to external disturbances upward, downward, left or right, the permanent magnet bias radial magnetic suspension bearing with position negative feedback controls the current in the winding 203 through the controller, adjusts the size of the magnetic flux of each radial air gap, and can always keep the magnetic bearing rotor 204 in the equilibrium position, thereby realizing stable suspension of the rotor.

[0053] The radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearings combines the characteristics of magnetic bearings and double-salient pole motors. It not only takes advantage of the magnetic bearings' lack of mechanical wear and long life, but also achieves the double-salient pole motor's low energy consumption and high efficiency.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0056] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A radial flux doubly salient permanent magnet motor integrated with a radial magnetic bearing, characterized in that: include, A rotating assembly (100) comprising a rotating member (101) and a stator body (102) arranged on the periphery of the rotating member (101); A suspension component (200) is arranged outside the rotating shaft (101a) of the rotating member (101); and a permanent magnet (300) is located between the suspension component (200) and the stator body (102); The magnetic bearing stator yoke (201) of the suspension component (200) is arranged on one side of the permanent magnet (300); the magnetic bearing stator salient pole (202) of the suspension component (200) is arranged on the inner wall of the magnetic bearing stator yoke (201); the suspension component (200) further comprises a magnetic bearing control winding (203) and a magnetic bearing rotor (204); the magnetic bearing control winding (203) is wound around the periphery of the magnetic bearing stator salient pole (202); the magnetic bearing rotor (204) is arranged outside the rotating shaft (101a) and is located inside the magnetic bearing stator salient pole (202); the magnetic bearing stator yoke (201) is cylindrical, and its inner and outer diameters are equal to the inner and outer diameters of the permanent magnet (300); Wherein, the permanent magnet (300) is an annular structure, and its magnetization direction is radial; The rotating member (101) further comprises a motor rotor salient pole (101b) and a motor rotor yoke (101c); the motor rotor salient pole (101b) is arranged on the motor rotor yoke (101c); the motor rotor yoke (101c) is arranged on the outside of the rotating shaft (101a); and the magnetic bearing rotor (204) is arranged on one side of the motor rotor yoke (101c).

2. The radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing according to claim 1, characterized in that: A gap is provided between the magnetic bearing rotor (204) and the magnetic bearing stator salient pole (202).

3. The radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing as claimed in claim 2, characterized in that: A gap is provided between the motor rotor salient pole (101b) and the motor stator salient pole (102a) of the stator body (102).

4. The radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing as claimed in claim 3, characterized in that: The motor stator salient pole (102a) of the stator body (102) is arranged on the inner wall of the motor stator yoke (102b) of the stator body (102).

5. The radial flux double-salient pole permanent magnet motor with integrated radial magnetic bearing according to claim 4, characterized in that: The stator body (102) further comprises an armature winding (102c), wherein the armature winding (102c) is wound around the periphery of the motor stator salient pole (102a).

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