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Brushless doubly-feed motor transient field simulation analysis system and method

A doubly-fed motor, simulation analysis technology, applied in control systems, electronic commutation motor control, model/simulation for control purposes, etc., can solve the problems of difficult cost reduction, insufficient reliability, low reliability, etc. Effects of brushes and slip rings, excellent running performance, good starting performance

Pending Publication Date: 2018-11-30
NINGDE NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the existing technology, the reliability is low and the maintenance cost is high;
[0008] Inconvenient controls and low performance
[0009] In the prior art, the brushless double-fed motor does not eliminate the brushes and slip rings, but the reliability is not high enough to reduce the cost
Causes not to have good starting performance and efficient running performance

Method used

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  • Brushless doubly-feed motor transient field simulation analysis system and method
  • Brushless doubly-feed motor transient field simulation analysis system and method
  • Brushless doubly-feed motor transient field simulation analysis system and method

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Embodiment Construction

[0088] In order to further understand the content, features and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings.

[0089] The brushless doubly-fed motor transient field simulation analysis method provided by the embodiment of the present invention includes: using Ansoft to create a brushless doubly-fed motor model; performing finite element analysis; and comparing by changing the number of turns of the motor winding and the speed of the motor analyze.

[0090] The finite element analysis of brushless doubly-fed motor includes the analysis of subdivision, flux density, magnetic force line and air gap flux density distribution, winding induced electric potential and current, winding flux linkage and electromagnetic torque.

[0091] The comparative analysis of brushless double-fed motors includes the comparison of different winding turns and the comparison of different speeds...

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Abstract

The invention belongs to the field of novel motor transient electromagnet field analysis and design, and discloses a brushless doubly-feed motor transient field simulation analysis system and method.A brushless doubly-feed motor model is established by using Ansoft; a brushless doubly-feed motor finite element is analyzed; and the brushless doubly-feed motor is subjected to comparative analysis.Brushless doubly-feed motor finite element analysis comprises subdivision, magnetic density, magnetic field line and air gap magnetic density distribution, potential and current winding induction, winding magnetic chain and electromagnetic torquing. According to the brushless doubly-feed motor, brushes and slip rings are omitted, reliability is improved, and the cost is reduced. The connection mode and frequency of the control winding are changed, and excellent starting performance and efficient operation performance are achieved.

Description

technical field [0001] The invention belongs to the field of analysis and design of the transient electromagnetic field of a novel motor, and in particular relates to a transient field simulation analysis system and method of a brushless double-fed motor. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] In modern society, the existence of motors has promoted the development of economy and society. The fields of application mainly include public life, industry, agriculture, and national defense construction. In my country, in the total annual electricity consumption of heavy industry and various equipment in the country, the electricity consumed by motors accounts for a large proportion. According to the data, the proportion of high-efficiency and energy-saving motors in the total motors is very small, less than 3%, which shows the seriousness of this problem. Due to the rapid advancement of industry...

Claims

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Application Information

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IPC IPC(8): H02P6/34H02P6/00
CPCH02P6/005H02P6/34
Inventor 王洪涛韩梁宁世超
Owner NINGDE NORMAL UNIV
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