A low-cost high-performance harmonic clip type continuous-pole permanent magnet synchronous motor
A permanent magnet synchronous motor, high-performance technology, applied in the direction of magnetic circuits, electric components, electrical components, etc., can solve the problems of large motor torque pulsation, breath magnetic field distortion, large magnetic flux leakage, etc., to improve electromagnetic performance and reduce Magnetic flux leakage and improved utilization
Pending Publication Date: 2019-01-04
NANJING KANGNI ELECTRONICS TECH
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Problems solved by technology
[0003] In order to solve the deficiencies in the prior art, the present invention provides a low-cost, high-performance harmonic pole-cutting type continuous pole permanent magnet synchronous motor, which solves the problem of large magnetic flux leakage and serious distortion of the air magnetic field in the prior art, which lead to The technical problem of large torque ripple and poor performance of the motor
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[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0026] like Figure 1 to Figure 2 As shown: this embodiment discloses a low-cost, high-performance harmonic pole-shaving continuous pole permanent magnet synchronous motor, including a stator 1, a rotor 2, a permanent magnet 4, a three-phase coil winding 5, and a motor shaft 6, the motor shaft 6 Connected to the center of the rotor 2, the stator 1 is provided with nine stator slots and nine stator teeth, the stator slots and stator teeth are arranged alternately with the center of the stator 1 as the center, the three-phase coil winding 5 is wound on each stator tooth, and the rotor 2 Three grooves and three salient poles 21 are evenly arranged on the side with the axis of the rotor 2 as the ce...
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A low-cost high-performance harmonic clip type continuous-pole permanent magnet synchronous motor including stator, rotor, permanent magnet, three-phase coil winding and motor shaft, The motor shaft is connected to the center of the rotor, the stator is provided with nine stator slots and nine stator teeth, three-phase coil windings are wound around each stator slot, three grooves and three salient poles are uniformly arranged at the rotor side around the rotor shaft center, three grooves and three salient poles are alternately arranged, and the spacing between adjacent grooves and adjacent salient poles is equal; The groove connects the permanent magnet, the center thickness of the permanent magnet is larger than the edge thickness of the permanent magnet, and the three permanent magnetsare sinusoidal plus third harmonic continuous pole permanent magnet. An auxiliary magnetic barrier is also arranged between the permanent magnet edge and the groove edge. As that salient pole iron core and the sinusoidal +3 harmonic continuous pole permanent magnet are adopt, the ripple torque of the motor can be obviously reduced, the magnetic flux leakage can be reduce, and the utilization ratioof the permanent magnet can be improved through simulation calculation and analysis.
Description
technical field [0001] The invention relates to the technical field of permanent magnet motors, in particular to a low-cost, high-performance harmonic pole-cutting continuous pole permanent magnet synchronous motor. Background technique [0002] Permanent magnet motors have the characteristics of high torque density, high efficiency, low torque ripple, low requirements for power device capacity and strong fault tolerance, and with the rapid development of advanced electromagnetic design theory, digital control technology and power electronics technology, This makes it widely used in occasions that require high motor power density and fault tolerance, especially in military industrial fields such as aviation, aerospace, and navigation, as well as civilian fields such as electric vehicles. In order to reduce the amount of permanent magnets used in motors, continuous pole permanent magnet motors have received extensive attention in recent years. However, the existing continuous...
Claims
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IPC IPC(8): H02K1/27H02K1/24H02K1/14
CPCH02K1/146H02K1/24H02K1/2706H02K2213/03
Inventor 徐新艳吴斌顾正雍
Owner NANJING KANGNI ELECTRONICS TECH