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Bi excitation hiddon electrode brushless synchronous electric machine

A synchronous generator and double-excitation technology, which is applied in the field of double-excitation hidden pole brushless synchronous motors, can solve problems such as strong excitation and dynamic performance limitations, long axial length of the generator, and rotor quality problems, achieving excellent dynamic characteristics, Strong electromagnetic compatibility and low excitation control energy

Inactive Publication Date: 2005-05-25
TELLHOW SCI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Problems such as rotor winding fixation and heat dissipation often cause rotor quality problems
In addition, the excitation source is designed to better meet the requirements of different loads and improve the power quality. The typical structure is the three-machine coaxial structure of the main generator, AC exciter, and permanent magnet generator (auxiliary exciter). The axial length of the generator is long and the structure is complex
Forced excitation and limited dynamic performance

Method used

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  • Bi excitation hiddon electrode brushless synchronous electric machine

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Embodiment Construction

[0007] Such as figure 1 As shown, U, V, W, N are generator stator armature windings; S 1 S 2 is the stator harmonic winding; a 1 a 2 a 3 is the permanent magnet generator winding; E 1 E. 2 E. 3 is the bifilar excitation winding; F 1 f 2 is the excitation winding of the rotor of the main engine; b 1 b 2 b 3 b 4 b 5 is the multi-phase winding of the exciter rotor; NS is the permanent magnet; Z 1 ,Z 2 ,Z 3 It is a rectifier, and the present invention is formed by coaxial assembly of the main motor and the auxiliary motor. The main motor rotor (2) punching piece is a hidden-convex structure, and the slot of the rotor punching piece is connected with a permanent magnet to form a salient magnetic field. The generator stator armature winding It is a sinusoidal winding. There are two auxiliary windings in the stator (1), one is a permanent magnet generator winding, and the other is a single-phase harmonic winding. The auxiliary motor is an AC exciter, and the stator wi...

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Abstract

A double excitation invisible brushless synchronous generator contains axial assembling main motor and auxiliary motor, which is characteristic of the main motor rotor piece is invisible convex structure with permanent magnet and excitation winding in groove, excitation winding forms polar hidden magnetic field and permanent magnet forms convex polar magnetic field, stator winding is sine winding with two auxiliary winding of permanent magnetic winding and single harmonic winding, auxiliary motor rotor is a ac exciter with double line formed stator winding and multi-phase winding formed rotor, multi-winding rectifier is connected with excitation winding to form straight line power supply. Said invention is brushless structure.

Description

technical field [0001] The invention relates to a double-excitation hidden pole brushless synchronous motor. Background technique [0002] Most of the current small brushless synchronous generators for internal combustion engines are generators with a salient pole structure. However, the salient pole structure generator is difficult to design the magnetic field shape and realize the process, and requires high processing equipment. Problems such as rotor winding fixation and heat dissipation often cause rotor quality problems. In addition, the excitation source is designed to better meet the requirements of different loads and improve the power quality. The typical structure is the three-machine coaxial structure of the main generator, AC exciter, and permanent magnet generator (auxiliary exciter). The axial length of the generator is long and the structure is complicated. Forced excitation and dynamic performance are limited. ...

Claims

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Application Information

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IPC IPC(8): H02K1/22H02K3/04H02K19/38
Inventor 林政安
Owner TELLHOW SCI TECH CO LTD
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