Mixed excitation bisalient-pole permanent-magnet synchronous machine

A technology of permanent magnet synchronous motor and electric excitation double salient pole, which is applied in the direction of electrical components, electromechanical devices, static parts of magnetic circuits, etc., and can solve the problems of not being able to use AC

Inactive Publication Date: 2005-08-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this kind of motor can only be used as a DC motor, and cannot be used for AC. Patent application number (200310106346.1)

Method used

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  • Mixed excitation bisalient-pole permanent-magnet synchronous machine
  • Mixed excitation bisalient-pole permanent-magnet synchronous machine
  • Mixed excitation bisalient-pole permanent-magnet synchronous machine

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Embodiment Construction

[0061] Since the structure of a multi-phase motor is similar to that of a three-phase motor, the following uses a three-phase motor as an example to illustrate the specific implementation.

[0062] The cross-sectional structure diagram of the hybrid excitation double salient permanent magnet synchronous motor of the present invention is shown in Fig. 10, the electric excitation double salient pole motor and the permanent magnet synchronous motor are installed in the same housing and share a rotating shaft.

[0063] The structure of the three-phase electric excitation double salient pole motor is shown in Figure 10 and Figure 11a. The stator 1 and the rotor 6 are laminated by silicon steel sheets. The motor has a 6N / 4N structure, that is, the number of stator teeth is 6N, and the number of rotor teeth is 4N, N It is a positive integer, such as N=1, it is a 3-phase 6 / 4 structure; N=2, it is a 3-phase 12 / 8 structure. The stator teeth are evenly distributed, and the width of the stato...

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Abstract

A mixed excitation double-convex pole permanent magnet synchronous motor. It is composed of magnet double-convex pole motor and the permanent magnet synchronous motor. The stators and the rotors of the two motors are independent, and share the shell and the revolving axis. The teeth of the stator of the double-convex pole motor has armature winding and excitation winding, the rotor does not have winding. The teeth of the stator of the permanent magnet synchronous motor have the armature winding. The armature windings of the two motors are in series. Adjust the amount and direction of the excitation current, the phase electric force can be modulated. Change the length proportion along the axes direction of the excitation double-convex pole motor and the permanent magnet synchronous motor, the breadth value of electric force will change correspondingly. It can be used as three-phase motor and multi-phase motor, AC motor or DC motor.

Description

Technical field [0001] The hybrid excitation double salient permanent magnet synchronous motor of the present invention belongs to a motor type AC / DC motor. Background technique [0002] Since the electric excitation synchronous motor can easily adjust the DC excitation, and the DC excitation capacity for adjusting the magnetic field is small, it has the advantages that the permanent magnet motor cannot achieve in terms of magnetic field adjustment. The Permanent Magnet (PM) motor also has a series of unique advantages due to the elimination of brushes and slip ring devices, such as high efficiency, simple structure, and small size. However, the air gap magnetic field of PM motors is composed of magnetic steel and The permeance of the magnetic circuit is determined to be almost constant during operation, and adjustment is difficult, which limits the development and application of PM motors to a large extent. [0003] There are two sources of magnetic potential in a Hybrid Excitat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K1/27H02K16/00
Inventor 赵朝会朱德明严仰光孟小利
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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