Hybrid excitation permanent magnet motor with secondary harmonic excitation

A second harmonic and mixed excitation technology, which is applied to synchronous motors with stationary armatures and rotating magnets, synchronous machine parts, magnetic circuit rotating parts, etc., can solve the problems of brushless and motor maintenance. Large volume and other problems, to achieve the effect of small excitation loss, favorable magnetic circuit distribution, and high reliability

Active Publication Date: 2011-02-16
浙江清岭科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the excitation winding is on the rotor, the connection between the excitation winding and the outside still requires slip rings and brushes, which cannot achieve brushless, resulting in a large amount of maintenance work for the motor

Method used

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  • Hybrid excitation permanent magnet motor with secondary harmonic excitation
  • Hybrid excitation permanent magnet motor with secondary harmonic excitation
  • Hybrid excitation permanent magnet motor with secondary harmonic excitation

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Experimental program
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Embodiment Construction

[0024] The structure and effect of the present invention will be described in detail by citing the following embodiments in conjunction with the accompanying drawings.

[0025] like figure 1 , figure 2 As shown, it is a hybrid excitation permanent magnet motor using second harmonic excitation provided by the present invention, and this embodiment takes a four-pole motor as an example. It includes a casing 10, inside which is a stator 20 composed of a stator core 21 and a stator winding 22, and a rotor 30 composed of a permanent magnet 31, a rotating shaft 32, a rotor core 33 and a rotor winding 34.

[0026] The stator core 21 is fixed in the housing 10 , and the stator windings 22 are distributed in the slots 23 provided on the stator core 21 along the circumferential direction.

[0027] The rotor 30 is arranged in the stator 20, the rotating shaft 32 is connected with the casing 10 through the bearing 11, the rotor core 33 is arranged on the rotating shaft 32, the permanen...

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Abstract

The invention relates to a hybrid excitation permanent magnet motor with secondary harmonic excitation, which is characterized by comprising a housing, wherein a stator consisting of a stator iron core and a stator winding and a rotor consisting of a permanent magnet, a rotating shaft, a rotor iron core and a rotor winding are configured in the housing; the stator iron core is fixed in the housing, the stator winding is distributed in a groove which is formed on the stator iron core along the circumferential direction; and the rotating shaft is connected with the housing by rotation, the rotor iron core is arranged on the rotating shaft, the permanent magnet and the rotor winding are arranged on the rotor iron core, the permanent magnet, the rotor winding and the rotor iron core can rotate along with the rotating shaft, and the rotor winding consists of a secondary harmonic winding and a rotor excitation winding.

Description

technical field [0001] The invention relates to a permanent magnet motor, in particular to a hybrid excitation permanent magnet motor adopting second harmonic excitation. Background technique [0002] With the continuous improvement of the performance of permanent magnet materials and the continuous decline of prices, permanent magnet materials are increasingly widely used in motors. Compared with electric excitation synchronous motors, permanent magnet motors do not require excitation windings and DC excitation power supplies, cancel brushes and slip rings, and realize brushless motors. Therefore, permanent magnet motors have the advantages of simple structure and reliable operation. Moreover, since there is no excitation loss in the permanent magnet motor, the efficiency of the motor is also improved. In addition, permanent magnet motors also have the characteristics of high power density, small size, light weight and flexible structure. Therefore, permanent magnet motors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/26H02K21/12H02K1/27H02K21/02
Inventor 王善铭夏永洪王祥珩苏鹏声
Owner 浙江清岭科技有限公司
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