阅读说明：本技术 混合励磁直线磁阻电机系统 (Mixed excitation linear reluctance motor system ) 是由 寇宝泉 董刘宏 邵一 于 2019-09-26 设计创作，主要内容包括：混合励磁直线磁阻电机系统,属于电机领域,本发明为解决现有单边平板型直线永磁同步电机存在高行程与低成本不能兼顾、无法进行恒功率速度控制、可靠性与安全性差的问题。本发明所述混合励磁直线磁阻电机系统包括混合励磁直线磁阻电机、功率变换器和直流励磁电源；功率变换器的交流输出端与混合励磁直线磁阻电机电枢绕组的引出线相连,直流励磁电源的输出端与混合励磁直线磁阻电机励磁绕组的引出线相连。结构简单坚固、磁场可调、恒功率调速范围宽、制造成本低、可靠性与安全性高。(The invention discloses a hybrid excitation linear reluctance motor system, belongs to the field of motors, and aims to solve the problems that the existing single-side flat plate type linear permanent magnet synchronous motor cannot give consideration to high stroke and low cost, cannot perform constant-power speed control, and is poor in reliability and safety. The hybrid excitation linear reluctance motor system comprises a hybrid excitation linear reluctance motor, a power converter and a direct-current excitation power supply; the AC output end of the power converter is connected with the outgoing line of the armature winding of the hybrid excitation linear reluctance motor, and the output end of the DC excitation power supply is connected with the outgoing line of the excitation winding of the hybrid excitation linear reluctance motor. Simple and firm structure, adjustable magnetic field, wide constant-power speed regulation range, low manufacturing cost, high reliability and safety.)

1. The hybrid excitation linear reluctance motor system is characterized by comprising a hybrid excitation linear reluctance motor, a power converter and a direct-current excitation power supply; the AC output end of the power converter is connected with the outgoing line of the armature winding of the hybrid excitation linear reluctance motor, and the output end of the DC excitation power supply is connected with the outgoing line of the excitation winding of the hybrid excitation linear reluctance motor.

2. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth of the 2n x m teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth are opposite, and the 2n x m excitation coils are connected in series to form an excitation winding;

two adjacent teeth are in a pair, 2n x m teeth are divided into n x m pairs of teeth, each pair of teeth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surface of an air gap of each primary iron core tooth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on two teeth surrounded by the same armature coil are opposite, and the magnetizing directions of the permanent magnets on adjacent teeth surrounded by adjacent armature coils are the same.

3. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 4n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

two adjacent teeth are a pair, 4n x m teeth are divided into 2n x m pairs of teeth, each pair of teeth in the odd pairs of teeth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings to be used as armature windings; each tooth in the even number of pairs of teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth in all the even number of pairs of teeth are opposite, and 2n multiplied by m excitation coils are connected in series to form an excitation winding;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surfaces of air gaps of odd pairs of teeth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on two teeth surrounded by the same armature coil are opposite, and the magnetizing directions of the permanent magnets on adjacent teeth surrounded by adjacent armature coils are the same.

4. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth of the 2n x m teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth are opposite, and the 2n x m excitation coils are connected in series to form an excitation winding;

two adjacent teeth are in a pair, 2n x m teeth are divided into n x m pairs of teeth, each pair of teeth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the air gap side surface of the primary iron core teeth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of one of the two teeth surrounded by each armature coil, j is a positive integer, and the teeth adhered with the permanent magnets and the teeth without the permanent magnets are arranged at intervals; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of the permanent magnets on all the teeth are the same.

5. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 3n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

the 3n x m teeth are divided into two groups of n x m single teeth and n x m pairs of teeth, and the single teeth and the pairs of teeth are arranged at intervals along the motion direction;

each tooth of the n x m single teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent single teeth are opposite, and the n x m excitation coils are connected in series to form an excitation winding;

each pair of n x m pairs of teeth is wound with an armature coil, and the n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are adhered to shallow grooves on the surfaces of teeth surrounded by the primary iron core armature coils, j permanent magnets with the same magnetizing direction are adhered and fixed on the surfaces of the teeth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on two teeth surrounded by the same armature coil are opposite, and the magnetizing directions of the permanent magnets on adjacent teeth surrounded by adjacent armature coils are the same.

6. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings serving as armature windings;

each tooth is wound with an excitation coil, the winding directions of m adjacent excitation coils on the teeth wound by armature coils of different phases are the same, the winding directions of the m excitation coils are opposite to the winding directions of the adjacent excitation coils on the front side and the rear side, and the n multiplied by m excitation coils are connected in series to form an excitation winding;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surface of an air gap of each primary iron core tooth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on the teeth wound by the adjacent m armature coils belonging to different phases are the same, and the magnetizing directions of the permanent magnets on the teeth wound by the adjacent armature coils belonging to the same phase are opposite.

7. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

the n x m odd-numbered teeth are wound with an excitation coil, the winding directions of the excitation coils on the adjacent odd-numbered teeth are opposite, and the n x m excitation coils are connected in series to form an excitation winding;

an armature coil is wound on each of the n x m even-numbered teeth, and the n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are adhered to shallow grooves on the surfaces of teeth surrounded by the primary iron core armature coils, j permanent magnets with the same magnetizing direction are adhered and fixed on the surfaces of the teeth, and j is a positive integer; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of all the permanent magnets are the same.

8. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

the n x m odd-numbered teeth are wound with an excitation coil, the winding directions of the excitation coils on the adjacent odd-numbered teeth are opposite, and the n x m excitation coils are connected in series to form an excitation winding;

an armature coil is wound on each of the n x m even-numbered teeth, and the n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are adhered to shallow grooves on the tooth surfaces of 2n x m teeth of the primary iron core, j permanent magnets with the same magnetizing direction are adhered and fixed on the tooth surfaces, and j is a positive integer; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of the permanent magnets on the adjacent teeth are opposite.

9. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth is wound with an armature coil, and 2 nxm armature coils are connected into m symmetrical windings serving as armature windings;

the winding direction of each excitation coil is opposite to that of the adjacent excitation coils on the front side and the rear side of each excitation coil, and the excitation coils on all the teeth are connected in series to form an excitation winding;

the permanent magnets are flat and are adhered to shallow grooves on the tooth surface of each tooth of the primary iron core, j permanent magnets with the same magnetizing direction are adhered and fixed on the tooth surface, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on the teeth wound by the m adjacent coils belonging to different phases are the same, and the magnetizing directions of the permanent magnets on the teeth wound by the adjacent coils belonging to the same phase are opposite.

10. The hybrid excitation linear reluctance machine system of claim 1, wherein the hybrid excitation linear reluctance machine comprises a primary and a secondary with an air gap therebetween;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth are opposite, and the n multiplied by m excitation coils are connected in series to form an excitation winding;

each tooth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings serving as armature windings;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surface of an air gap of each primary iron core tooth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of the permanent magnets on the adjacent teeth are opposite.

Technical Field

The invention belongs to the field of motors, and relates to a linear reluctance motor structure.

Background

The structure of the conventional single-side flat-plate linear permanent magnet synchronous motor is shown in fig. 19. The motor is composed of a primary part and a secondary part, wherein the primary part is mainly composed of an armature core and an armature winding, and the secondary part is mainly composed of a permanent magnet and a magnetic conductive yoke. The armature magnetic field generated by electrifying the armature winding interacts with the secondary permanent magnet magnetic field to generate electromagnetic force, and the electromagnetic force acts on the rotor to drive the rotor to do linear motion. The linear motor has the advantages of simple control, good dynamic characteristic, high thrust linearity, simple primary structure and convenient processing and manufacturing. However, the motor of the type has the major disadvantages that the permanent magnet required by the secondary side is in direct proportion to the motor stroke, and when the motor stroke is large, the cost of the motor is high; the magnetic field of the secondary permanent magnet cannot be adjusted, and constant-power speed control cannot be performed; in addition, the secondary permanent magnet magnetic circuit is an open magnetic circuit, and special protection is needed to improve reliability and safety.

Disclosure of Invention

The invention aims to solve the problems that the existing unilateral flat plate type linear permanent magnet synchronous motor cannot give consideration to high stroke and low cost, cannot perform constant power speed control and is poor in reliability and safety, and provides a hybrid excitation linear reluctance motor system.

The mixed excitation linear reluctance motor system comprises a mixed excitation linear reluctance motor, a power converter and a direct-current excitation power supply; the AC output end of the power converter is connected with the outgoing line of the armature winding of the hybrid excitation linear reluctance motor, and the output end of the DC excitation power supply is connected with the outgoing line of the excitation winding of the hybrid excitation linear reluctance motor.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth of the 2n x m teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth are opposite, and the 2n x m excitation coils are connected in series to form an excitation winding;

two adjacent teeth are in a pair, 2n x m teeth are divided into n x m pairs of teeth, each pair of teeth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surface of an air gap of each primary iron core tooth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on two teeth surrounded by the same armature coil are opposite, and the magnetizing directions of the permanent magnets on adjacent teeth surrounded by adjacent armature coils are the same.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 4n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

two adjacent teeth are a pair, 4n x m teeth are divided into 2n x m pairs of teeth, each pair of teeth in the odd pairs of teeth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings to be used as armature windings; each tooth in the even number of pairs of teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth in all the even number of pairs of teeth are opposite, and 2n multiplied by m excitation coils are connected in series to form an excitation winding;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surfaces of air gaps of odd pairs of teeth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on two teeth surrounded by the same armature coil are opposite, and the magnetizing directions of the permanent magnets on adjacent teeth surrounded by adjacent armature coils are the same.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth of the 2n x m teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth are opposite, and the 2n x m excitation coils are connected in series to form an excitation winding;

two adjacent teeth are in a pair, 2n x m teeth are divided into n x m pairs of teeth, each pair of teeth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the air gap side surface of the primary iron core teeth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of one of the two teeth surrounded by each armature coil, j is a positive integer, and the teeth adhered with the permanent magnets and the teeth without the permanent magnets are arranged at intervals; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of the permanent magnets on all the teeth are the same.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 3n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

the 3n x m teeth are divided into two groups of n x m single teeth and n x m pairs of teeth, and the single teeth and the pairs of teeth are arranged at intervals along the motion direction;

each tooth of the n x m single teeth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent single teeth are opposite, and the n x m excitation coils are connected in series to form an excitation winding;

each pair of n x m pairs of teeth is wound with an armature coil, and the n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are adhered to shallow grooves on the surfaces of teeth surrounded by the primary iron core armature coils, j permanent magnets with the same magnetizing direction are adhered and fixed on the surfaces of the teeth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on two teeth surrounded by the same armature coil are opposite, and the magnetizing directions of the permanent magnets on adjacent teeth surrounded by adjacent armature coils are the same.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings serving as armature windings;

each tooth is wound with an excitation coil, the winding directions of m adjacent excitation coils on the teeth wound by armature coils of different phases are the same, the winding directions of the m excitation coils are opposite to the winding directions of the adjacent excitation coils on the front side and the rear side, and the n multiplied by m excitation coils are connected in series to form an excitation winding;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surface of an air gap of each primary iron core tooth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on the teeth wound by the adjacent m armature coils belonging to different phases are the same, and the magnetizing directions of the permanent magnets on the teeth wound by the adjacent armature coils belonging to the same phase are opposite.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

the n x m odd-numbered teeth are wound with an excitation coil, the winding directions of the excitation coils on the adjacent odd-numbered teeth are opposite, and the n x m excitation coils are connected in series to form an excitation winding;

an armature coil is wound on each of the n x m even-numbered teeth, and the n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are adhered to shallow grooves on the surfaces of teeth surrounded by the primary iron core armature coils, j permanent magnets with the same magnetizing direction are adhered and fixed on the surfaces of the teeth, and j is a positive integer; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of all the permanent magnets are the same.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

the n x m odd-numbered teeth are wound with an excitation coil, the winding directions of the excitation coils on the adjacent odd-numbered teeth are opposite, and the n x m excitation coils are connected in series to form an excitation winding;

an armature coil is wound on each of the n x m even-numbered teeth, and the n x m armature coils are connected into m symmetrical windings to serve as armature windings;

the permanent magnets are flat and are adhered to shallow grooves on the tooth surfaces of 2n x m teeth of the primary iron core, j permanent magnets with the same magnetizing direction are adhered and fixed on the tooth surfaces, and j is a positive integer; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of the permanent magnets on the adjacent teeth are opposite.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form 2n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth is wound with an armature coil, and 2 nxm armature coils are connected into m symmetrical windings serving as armature windings;

the winding direction of each excitation coil is opposite to that of the adjacent excitation coils on the front side and the rear side of each excitation coil, and the excitation coils on all the teeth are connected in series to form an excitation winding;

the permanent magnets are flat and are adhered to shallow grooves on the tooth surface of each tooth of the primary iron core, j permanent magnets with the same magnetizing direction are adhered and fixed on the tooth surface, and j is a positive integer; the permanent magnets are magnetized in parallel in the vertical direction, the magnetizing directions of the permanent magnets on the teeth wound by the m adjacent coils belonging to different phases are the same, and the magnetizing directions of the permanent magnets on the teeth wound by the adjacent coils belonging to the same phase are opposite.

Preferably, the hybrid excitation linear reluctance motor comprises a primary and a secondary, with an air gap between the primary and the secondary;

the secondary comprises a secondary iron core, wherein teeth and slots are transversely arranged on the air gap side of the secondary iron core, and the teeth and the slots are sequentially arranged at intervals along the movement direction;

the primary comprises a primary iron core, an armature winding, an excitation winding and a permanent magnet, wherein the primary iron core is in a flat plate shape, tooth grooves are transversely formed in the air gap side of the primary iron core to form n multiplied by m teeth, n is a positive integer, m is the phase number of the motor, and m is more than or equal to 3;

each tooth is wound with an excitation coil, the winding directions of the excitation coils on the adjacent teeth are opposite, and the n multiplied by m excitation coils are connected in series to form an excitation winding;

each tooth is wound with an armature coil, and n x m armature coils are connected into m symmetrical windings serving as armature windings;

the permanent magnets are flat and are fixedly adhered in shallow grooves on the side surface of an air gap of each primary iron core tooth, j permanent magnets with the same magnetizing direction are fixedly adhered on the surface of each tooth, and j is a positive integer; the permanent magnets are magnetized vertically and parallelly, and the magnetizing directions of the permanent magnets on the adjacent teeth are opposite.

The invention has the beneficial effects that: the hybrid excitation linear reluctance motor is formed by adopting a special armature structure and combining the advantages of a multiphase motor, a hybrid excitation motor, a reluctance motor and a linear motor, a secondary permanent magnet is omitted, and the hybrid excitation linear reluctance motor has the characteristics of low manufacturing cost, simple secondary structure, good fault-tolerant performance, high reliability and safety, adjustable magnetic field, high thrust density, direct drive and the like, and has wide application prospect in application occasions requiring high speed, high thrust and direct drive, such as numerical control machine tools, semiconductor processing and the like.

Drawings

Fig. 1 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to a first embodiment;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to a second embodiment;

FIG. 4 is an enlarged view of a portion of FIG. 3;

fig. 5 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to a third embodiment;

FIG. 6 is an enlarged partial view of FIG. 5;

fig. 7 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to the fourth embodiment;

FIG. 8 is an enlarged partial view of FIG. 7;

fig. 9 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to the fifth embodiment;

FIG. 10 is an enlarged partial view of FIG. 9;

fig. 11 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to a sixth embodiment;

FIG. 12 is an enlarged partial view of FIG. 11;

fig. 13 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to a seventh embodiment;

FIG. 14 is an enlarged partial view of FIG. 13;

fig. 15 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to an eighth embodiment;

FIG. 16 is an enlarged partial view of FIG. 15;

fig. 17 is a schematic structural diagram of a hybrid excitation linear reluctance motor system according to the ninth embodiment;

FIG. 18 is an enlarged partial view of FIG. 17;

fig. 19 is a schematic structural diagram of a single-side flat-plate linear permanent magnet synchronous motor according to the background art.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.

The hybrid excitation linear reluctance motor system comprises a hybrid excitation linear reluctance motor, a power converter and a direct-current excitation power supply; the AC output end of the power converter is connected with the outgoing line of the armature winding of the hybrid excitation linear reluctance motor, and the output end of the DC excitation power supply is connected with the outgoing line of the excitation winding of the hybrid excitation linear reluctance motor.

The hybrid excitation linear reluctance motor is realized by adopting any one of the following nine embodiments.