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Hybrid excitation switched reluctance motor and stator structure thereof

A technology of switched reluctance motor and stator structure, applied in magnetic circuit shape/style/structure, synchronous motor for single-phase current, wind power generation, etc., can solve complex drive control system, large cogging torque pulsation, Problems such as large noise and vibration can overcome the difficulty of magnetic field adjustment, wide operating speed range, and high power density.

Inactive Publication Date: 2015-07-01
BEIJING GENERATOR MECHANICAL & ELECTRICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, switched reluctance wind turbines have the disadvantages of large cogging torque pulsation, large noise and vibration, lower efficiency than permanent magnet wind turbines, complex drive control system, and high cost, so they have not been widely used in the wind power field.

Method used

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  • Hybrid excitation switched reluctance motor and stator structure thereof
  • Hybrid excitation switched reluctance motor and stator structure thereof
  • Hybrid excitation switched reluctance motor and stator structure thereof

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Embodiment Construction

[0033] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] see Figure 4 shown.

[0035] Taking the 8 / 6-pole four-phase hybrid excitation switched reluctance wind power generator as an example, a hybrid excitation switched reluctance motor of the present invention mainly includes: rotating shaft 1, front bearing outer cover 2, front bearing fastening bolt 3, front bearing waveform Adjusting washer 4, front bearing 5, front bearing inner cover 6, front end cover 7, outlet box 8, stator core with winding 9, salient pole rotor core 10, frame 11, rotor pressure plate 12, rotor tie rod 13, wind Cover fastening bolts 14, end cover fastening bolts 15, rear bearing inner cover 16, rear end cover 17, rear bearing 18, rear be...

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Abstract

The invention discloses a stator structure of a hybrid excitation switched reluctance motor. The stator structure comprises a salient stator core provided with stator slots and stator teeth and a plurality of armature windings. Each stator tooth is provided with a permanent magnet slot in which a permanent magnet is fixed. One electrical excitation winding is disposed between every two adjacent stator teeth; each electrical excitation winding crosses in electrical excitation winding slots of every two adjacent stator teeth. The invention further discloses the hybrid excitation switched reluctance motor comprising the stator structure and a salient rotor core. The outer periphery of each rotor tooth of the salient rotor core is provided with a small slot. The stator structure allows the hybrid excitation switched reluctance motor to features high power density, high operating efficiency, high reliability, operational stability, low noise and wide range of operating speed, is especially suitable for the field of wind power and allows the development of the motor techniques in the field of wind power to be greatly promoted.

Description

technical field [0001] The invention relates to the field of motors, in particular to a hybrid excitation switched reluctance motor and its stator structure, especially suitable for wind power generation. Background technique [0002] At present, wind power generators are developing in the direction of high reliability, low maintenance, reduced components, lower costs, high efficiency, and high integration. The general trend is that the capacity of a single machine continues to increase. In variable-speed constant-frequency wind power generation systems, double-fed asynchronous generators and permanent magnet synchronous generators are mostly used. [0003] Among them, the doubly-fed asynchronous generator, due to the presence of a gearbox, carbon brushes and slip rings on the rotor, leads to high system cost, poor reliability, large maintenance, and serious noise pollution. And when its low-load operation, the efficiency is low, especially with the increase of stand-alone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K19/12H02K1/16H02K1/17
CPCY02E10/72
Inventor 秦明
Owner BEIJING GENERATOR MECHANICAL & ELECTRICAL TECH
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