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Stator permanent magnet switch reluctance generator

A reluctance generator and permanent magnet switch technology, applied in the direction of synchronous machines, electrical components, electromechanical devices, etc., can solve the problems of large resistance and low efficiency, and achieve the effect of small running resistance, high mechanical strength, and simple and compact structure

Pending Publication Date: 2021-05-14
石峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regardless of the above reluctance generators, there are problems of excessive resistance and low efficiency, which need further optimization and improvement

Method used

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  • Stator permanent magnet switch reluctance generator
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  • Stator permanent magnet switch reluctance generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: as figure 1 As shown, a plurality of stator cores 4 are respectively fixed in the axial grooves of the left end cover 5 and the right end cover 7, which can be bonded with high-strength adhesives or welded by laser welding. The permanent magnet sheet 2 fixed by adhesive bonding or laser welding, the concentrated winding 3 is respectively fixed on the two opposite stator cores 4, the groove of the rotor disk 6 is inlaid with the magnetic block 1, and the rotor disk 6 is made of high-strength It is made of non-magnetic steel. In this application, it is made of 316L material. The magnetic block 1 is pasted with high-strength adhesive or fixed by laser welding. The number of permanent magnet pieces 2 on each pair of stator cores 4 is the number of stator pole pairs. The number of magnetic blocks 1 on the rotor disk 6 is the number of magnetic poles of the rotor. In this embodiment, the ratio of the number of stator pole pairs to the number of rotor poles is 2:...

Embodiment 2

[0046] Embodiment 2: as figure 2 As shown, it is a double-disk axial magnetic field stator permanent magnet switched reluctance generator. The number of magnetic poles on the rotor disk 6 is consistent with the logarithm of the number of magnetic poles on the stator core 4, and the magnetic pole phase between the two rotor disks is used. The difference is 180 degrees to ensure that the induced voltage phase difference between the two stator cores 4 is 180 degrees, and the formed one-way feedback circuit is consistent with the embodiment 1.

[0047] Because there are two rotor disks 6 and two sections of stator cores 4, all the left end cover 5 and the right end cover 5 are connected with the middle housing 212. Since the stator cores 4 at both ends are divided into two phases, their magnetic circuits cannot be correlated, so the two Between the section stator iron core 4, there is a magnetic isolation sheet 213, and the concentrated winding 3 is also doubled, and the lock was...

Embodiment 3

[0048] Embodiment 3: Radial magnetic field permanent magnet stator switched reluctance generator, the number of magnetic poles of the rotor disk 6 is consistent with the number of stator magnetic poles, and the magnetic pole phase difference between the two rotor disks 6 is 180 degrees to ensure that the two sections of stator iron The induced voltage phase difference between the cores 4 is 180 degrees, or the magnetic pole phase difference between the two rotor disks 6 is 0 degrees, and the magnetic pole phase difference between the two stator cores 4 is 180 degrees.

[0049] The two sections of stator core 4 are all installed in a housing 34, and bearings are arranged on the end covers 35 at both ends to support the rotating shaft. Since it is not an axial magnetic field, deep groove ball bearings can be used. The permanent magnet sheet 2 is fixed by bonding agent or laser welding, the concentrated winding 3 is installed on the stator core 4, and the rotor disk 6 is directly ...

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Abstract

The invention provides a stator permanent magnet switch reluctance generator, and belongs to the field of motors. The stator permanent magnet switch reluctance generator comprises a stator core and a rotor disc, the stator core is provided with a permanent magnet sheet, the rotor disc is provided with a magnetic conductive block, and the stator core is provided with a concentrated winding; the magnetic conductive blocks and the permanent magnet sheets are correspondingly arranged to generate two-phase induction voltage with phase difference, namely, a first winding and a second winding of two-phase alternating current are formed, and the first winding and the second winding are connected to form a one-way conduction feedback circuit; and a resistor or a capacitor inductor for controlling the current of the feedback circuit is arranged between the first winding and the second winding, and a diode or a triode for ensuring the unidirectional flow of the current is also arranged. According to the feedback circuit, the running resistance of the motor is reduced, and the efficiency is higher.

Description

technical field [0001] The invention belongs to the field of motors and relates to a stator permanent magnet switched reluctance generator. Background technique [0002] In recent years, with the advancement of technology, more and more fields are inclined to electric drive, and the application of motors and generators has become more and more extensive. Generators have developed greatly in recent years. Switched reluctance generators are a new type of power generation The machine has its outstanding advantages. [0003] Generators with mutual feedback between various phases, power grids and generator windings have also appeared. For example, wind power has developed double-feedback generators. Double-feedback generators use double-fed inverters to AC excite the rotor. As the rotor speed changes, the frequency amplitude, phase sequence and phase of the AC excitation AC are changed. The basic meaning of double-feed is: two-way feedback of energy, that is, the mutual feedback...

Claims

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Application Information

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IPC IPC(8): H02K16/04H02K21/38H02K1/24
CPCH02K1/24H02K16/04H02K21/38
Inventor 石峰
Owner 石峰
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