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Permanent magnet compensation type pulse AC generator

A pulsed AC and compensation technology, applied in the field of motors, to reduce complexity, increase operating speed, and avoid brush ablation

Inactive Publication Date: 2005-03-02
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the current compensation pulse alternator, the present invention provides a permanent magnet compensation pulse alternator, so as to solve various problems caused by slip rings and brushes, so as to increase reliability and improve the working efficiency of the whole machine. The purpose of reducing the volume of the system while reducing electromagnetic interference

Method used

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  • Permanent magnet compensation type pulse AC generator
  • Permanent magnet compensation type pulse AC generator
  • Permanent magnet compensation type pulse AC generator

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Experimental program
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Effect test

Embodiment 1

[0017] Depend on figure 1 The stator shown and the rotor shown in Figure 2 constitute a permanent magnet compensation pulse alternator. Shown in the figure is a concrete four-pole pulsed alternator. A four-pole motor can be seen as a simple repetition of a basic two-stage motor, with identical potential waveforms under each pair of pole faces. figure 1 a is a cross-sectional view of the stator structure, figure 1 b is a side view of the stator structure. The armature winding 1 installed on the stator in the figure is pasted on the inner surface of the stator with high-strength glue. The stator body 2 is composed of laminated silicon steel sheets. Fig. 2a is a cross-sectional view of the rotor structure, and Fig. 2b is a side view of the rotor structure. The rotor in the figure is composed of a rotating shaft 4 , a rotor body 5 , a permanent magnet 7 , a magnetic isolation material 6 and a shielding cylinder 3 . The installed permanent magnet 7 is a rare earth permanent m...

Embodiment 2

[0022] The structure of the stator is completely consistent with the first embodiment. The difference is that the armature winding ends are connected concentrically. The connection method is simple and no drawing is required. Of course, the windings can also be connected in the form of overlapping windings. The rotor structure is also consistent with the first embodiment, except that the magnetic isolation material is replaced with epoxy resin.

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Abstract

This invented permanent magnet compensatino pulsation ac generator. Its stator is made of layered silicon sheets to form a cylindrical cavity, armature coil is fixed on its inner surface, the ends of which being out of the iron core are connected. The rotor is placed in the cavity, and rotates driven by a power mechanism. The main body of the rotor is made of iron magnet material, and the rare-earth permanent magnets are arranged on the outer surface of the rotor with intervals and being isolated by isolating material. The shielding sleeve are over the permanent magnets and isolating material. Due to the use of permanent magnet as exciting source, an exciting circuit is eliminated with advantages of increasing working efficiency, simplifying prodn, process.

Description

technical field [0001] The invention belongs to a motor, in particular to a compensating pulse alternator. Background technique [0002] In the existing compensating pulse alternator, the magnetic field used for excitation is generally generated by applying current excitation, and the excitation source can be externally applied or generated by armature current. However, due to the rotation of the rotor, whether a rotating armature or a rotating excitation field is used, there is an electrical connection problem between the rotating part and the stationary part. Especially the greater the power, the more difficult its electrical connection problems. According to "Electrical Engineering" (1987) written by Wang Guoliang, the current commonly used connection scheme is mainly the cooperation of slip rings and brushes, which brings many problems: 1) Wear and ablation of brushes. 2) The contact performance of brushes and slip rings increases due to the decrease in elasticity. 3)...

Claims

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Application Information

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IPC IPC(8): H02K39/00
Inventor 潘垣刘克富刘晓旭
Owner HUAZHONG UNIV OF SCI & TECH