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Co-excited coarse-fine coupled reluctance resolver with redundant windings

A resolver, coarse-fine coupling technology, applied in the shape/style/structure of transformers, winding conductors, transformers/inductor coils/windings/connections, etc., can solve problems such as large errors and complex structures, and achieve high reliability , small size, and the effect of reducing accuracy errors

Active Publication Date: 2015-09-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a co-excitation coarse-fine coupling reluctance rotary transformer with redundant windings in order to solve the existing problems of the rotary transformer used for angle measurement such as complex structure and large error

Method used

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  • Co-excited coarse-fine coupled reluctance resolver with redundant windings
  • Co-excited coarse-fine coupled reluctance resolver with redundant windings
  • Co-excited coarse-fine coupled reluctance resolver with redundant windings

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specific Embodiment approach 1

[0010] Specific implementation mode one: as figure 1 , figure 2 , image 3 As shown, it consists of a ring-shaped rotor 1, a stator 2, the first Seiki sine signal winding 4, the second Seiki sine signal winding 4-1, the first Seiki cosine signal winding 5, and the second Seiki cosine signal winding Winding 5-1, first excitation winding 6, second excitation winding 6-1, first rough machine sine signal winding 7, second rough machine sine signal winding 7-1, first rough machine cosine signal winding 8, second Rough machine cosine signal winding 8-1 composition;

[0011] The annular rotor 1 is set on the outside of the stator 2, and there is an air gap 3 between the inner surface of the annular rotor 1 and the outer surface of the stator 2; the annular rotor 1 is composed of the first annulus 1-1, the second Two rings 1-2 and a third ring 1-3 are formed; one end face of the first ring 1-1 is connected to an end face of the second ring 1-2, and the other end face of the second...

specific Embodiment approach 2

[0014] Specific implementation mode two: as figure 1 , figure 2 , image 3 As shown, the difference between this embodiment and the first embodiment is that the first precision machine sine signal winding 4, the second precision machine sine signal winding 4-1, the first precision machine cosine signal winding 5, the second precision machine The mechanical cosine signal winding 5-1, the first excitation winding 6, and the second excitation winding 6-1 are arranged in an internal and external distribution manner. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific implementation mode three: as figure 1 , figure 2 , image 3 As shown, the difference between this embodiment and Embodiment 1 is that the first excitation winding 6 and the second excitation winding 6-1 are concentrated windings with the same number of turns and the same line shape. Other compositions and connections are the same as in the first embodiment. In this embodiment, the resistance of the first excitation winding 6 and the second excitation winding 6 - 1 can be equal, so that the first excitation winding 6 and the second excitation winding 6 - 1 have the same performance when working.

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Abstract

The invention discloses a total-excitation coarse-fine coupling magnetism-resisting-type rotary transformer with a redundancy winding, and relates to the technical field of total-excitation coarse-fine coupling magnetism-resisting-type rotary transformers with redundancy windings. The total-excitation coarse-fine coupling magnetism-resisting-type rotary transformer aims at solving the problems that an existing rotary transformer used for measuring angles is complex in structure, large in error and the like. According to the winding rule of the total-excitation coarse-fine coupling magnetism-resisting-type rotary transformer, every N adjacent upper teeth and corresponding N lower teeth on a stator are used as a set of winding teeth in sequence to form 4P sets of winding teeth, a first fine machine sinusoidal signal winding, a second fine machine sinusoidal signal winding, a first fine machine cosine signal winding and a second fine machine cosine signal winding are respectively wound around the 4P sets of winding teeth at intervals in a homopolarity and in-phase mode, the homopolarity and in-phase signal windings are connected in series in the forward direction, and the in-phase and heteropolarity signal windings are connected in series in the reverse direction. A 90-degree difference is formed between the spatial position of an excitation winding and the two-phase signal windings, the coupling area of the excitation winding and the two-phase signal windings is small, the distribution capacitance is small, the remaining electric potential of the signal windings is small, and therefore the accuracy error is reduced.

Description

technical field [0001] The invention relates to the technical field of a co-excitation coarse-fine coupled reluctance rotary transformer with redundant windings. Background technique [0002] Due to the presence of slip rings or coupling transformers in traditional wire-wound rotary transformers, its volume increases and its reliability decreases. The reluctance resolver solves the problem of the complex excitation structure of the traditional wire-wound resolver, and has the advantages of no contact, simple structure, durability and reliability, and has been developed rapidly in recent years. Throughout the resolver literature and products at home and abroad, most of the existing reluctance resolvers adopt a radial magnetic circuit structure, and the air gap permeability is changed by changing the air gap length. When the air gap length becomes larger, the output impedance of the resolver will be greatly reduced, and it will be greatly affected by the load. At the same ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/18H01F27/28H02K3/12H02K1/22
Inventor 尚静王昊李婷婷刘承军江善林赵猛赵博王骞
Owner HARBIN INST OF TECH
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