48results about How to "Raise the saliency ratio" patented technology

A synchronous reluctance motor (100) comprises: a shaft (23); a rotor core (21) fixed to the shaft (23), and having a plurality of flux barriers formed therein; a stator core (11) having a plurality of protruding stator teeth formed therein; and a multiphase armature winding (15) wound around the plurality of the stator teeth (12). The flux barriers include: a plurality of first flux barriers (41) formed spaced apart in the circumferential direction, and extending in the radial direction; and a plurality of second flux barriers (31) formed mutually spaced apart in the circumferential direction, and having a curved surface protruding toward the center of the rotary shaft in each circumferentially angular region sandwiched by the first flux barriers (41).

The invention discloses a transverse laminated synchronous reluctance motor with auxiliary permanent magnets. The transverse laminated synchronous reluctance motor with the auxiliary permanent magnets comprises a stator core, stator windings, a rotor core assembly, a rotating shaft, a bearing used for supporting the rotating shaft, a front end cover, a rear end cover and a machine shell. The rotor core assembly comprises the rotor core and a plurality of block-shaped permanent magnets, wherein the rotor core and the plurality of block-shaped permanent magnets are sleeved on the rotating shaft. The rotor core is formed by transversely laminating a plurality of single-shaped complete steel sheets along the rotating shaft. The rotor core is provided with a plurality of layers of arc grooves suitable for insertion of the blocked-shaped permanent magnets. The block-shaped permanent magnets are arranged in the arc grooves. The polarities of the permanent magnets in the layers of arch grooves of the same polar are the same and form a magnetic pole group. The polarities of magnetic pole sets of two adjacent poles are opposite. According to the synchronous reluctance motor, the auxiliary block-shaped permanent magnets are arranged in the arc grooves of the rotor core, and therefore power factors of the motor are improved, and constant power speed adjustable ranges of the motor are widened; and due to the fact that the rotor core is formed by transversely laminating the plurality of single-shaped complete silicon steel sheets, the motor can have good mechanical strength.

The invention discloses a serial hybrid permanent magnet variable flux motor, which comprises a stator (100), an armature winding (200) wound on the stator (100), and a rotor core (300). Each pole of (300) is provided with three permanent magnets that are not in direct contact and placed separately, wherein the second permanent magnet (302) is placed on the outside in a "one" shape, and the two first permanent magnets (301) are in a "V" shape. ” shape is placed on the inner side, the second permanent magnet (302) is a high coercive force permanent magnet or a low coercive force permanent magnet, and the first permanent magnet (301) is a high coercive force permanent magnet or a low coercive force permanent magnet force permanent magnet. In the motor of the present invention, the low coercive force permanent magnet and the high coercive force permanent magnet adopt special placement positions and methods, so that the motor is a magnetic circuit series structure, and the high coercive force permanent magnet acts on the low coercive force permanent magnet. The magnetization effect improves the working point and magnetization degree of the low-coercivity permanent magnet, improves the torque output capability, and reduces the magnetizing current of the motor.

The invention belongs to the field of electromechanical switched reluctance motors and relates to a rotor slotless switched reluctance motor, in particular to a switched reluctance motor having a rotor slotless structure. A stator of the rotor slotless switched reluctance motor has a magnetic pole structure which is formed by combining six main magnetic poles and auxiliary magnetic poles; a rotorhas an anisotropic axial lamination structure and is laminated into a four-pole structure; the axial lamination structure comprises a rotary shaft, a non-magnetic-conduction bracket, an axial lamination, a non-magnetic-conduction filling material and a non-magnetic-conduction fastening ring; and magnetic poles of the axial lamination are formed by alternately laminating a high-magnetic-conductionmaterial silicon steel sheet and a non-magnetic-conduction insulating material lamination along the axial direction. The rotor slotless switched reluctance motor has the advantages that: by adopting combined stator magnetic poles and an axial laminated rotor, the length of a magnetic path is reduced, the iron loss of the switched reluctance motor can be reduced, and the torque pulsation of the switched reluctance motor is effectively reduced; and windings are wound on the main magnetic poles, so that the windings are convenient to embed, the problem about insulation is solved, and the utilization rate of a slot is high.

A synchronous reluctance motor includes: a rotor shaft; a rotor core fixed to the rotor shaft and on which a plurality of flux barriers are formed; a stator core on which a plurality of protruding stator teeth are formed; and multiphase armature windings of a plurality of poles wound around the plurality of stator teeth. The flux barriers include a plurality of first flux barriers formed to be spaced out in the circumferential direction from each other and extend in a radial direction, and a plurality of second flux barriers formed in each of circumferential angular regions sandwiched between the first flux barriers to form a curved surface convex toward the center of the rotation-axis and to spread and be spaced out in the circumferential direction from each other.