CN104200973B - Harmonic elimination waves radial magnetic circuit multipolar resolver and signal winding method for winding - Google Patents
Harmonic elimination waves radial magnetic circuit multipolar resolver and signal winding method for winding Download PDFInfo
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- CN104200973B CN104200973B CN201410474885.9A CN201410474885A CN104200973B CN 104200973 B CN104200973 B CN 104200973B CN 201410474885 A CN201410474885 A CN 201410474885A CN 104200973 B CN104200973 B CN 104200973B
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Abstract
Harmonic elimination waves radial magnetic circuit multipolar resolver and signal winding method for winding, belong to transformer technology field, and low to solve existing radial direction magnetoresistance transformer precision, volume increases with the increase of number of pole-pairs, the problem that application is limited. There is between stator and rotor unequal air gap, the inner surface of stator vertically respectively processing have 4NP stator slot and 4NP stator tooth, Exciting Windings for Transverse Differential Protection is placed in 4NP stator slot, 4NP stator tooth is just being wound around respectively, cosine signal winding. Method is: the optional axis crossing stator and the plane not intersected with stator tooth, along clockwise direction 4NP stator tooth is divided into 4P group, counted by plane, N number of stator tooth first group adjacent counterclockwise coiling, N number of stator tooth second group adjacent coiling clockwise, just, cosine signal winding canoe identical, in phase place differ 90 ° of electrical angles. The present invention is for fields such as electric automobile, aviation and space flight.
Description
Technical field
The present invention relates to a kind of harmonic elimination waves radial magnetic circuit rotary transformer and signal winding method for winding, belong to transformer technology field.
Background technology
Existing magnetoresistance transformer generally adopts magnetic structure radially, and excitation and signal winding are both placed on stator tooth, and rotor adopts salient-pole structure. Exciting Windings for Transverse Differential Protection, sinusoidal signal winding adopt the circle windings such as concentration with cosine signal winding, simplify the structure of coil, the coiling of convenient machinery. The defects such as but the rotary transformer of this structure exists the defects such as copper factor is low, harmonic content is bigger, and precision relatively Wound-rotor type rotary transformer is low. Additionally, the impact that the precision of rotary transformer is subject to the techniques such as the riding position of coil is notable. Additionally, existing radial direction magnetoresistance transformer not only precision is relatively low, and volume also enlarges markedly with the increase of number of pole-pairs.
Summary of the invention
It is an object of the invention to provide a kind of harmonic elimination waves radial magnetic circuit multipolar resolver and signal winding method for winding, low to solve existing radial direction magnetoresistance transformer precision, volume increases with the increase of number of pole-pairs, the problem that application is limited.
Realizing above-mentioned purpose, the technical scheme taked is as follows:
The harmonic elimination waves radial magnetic circuit multipolar resolver of the present invention, including stator, rotor, Exciting Windings for Transverse Differential Protection, sinusoidal signal winding and cosine signal winding; Stator is drum; Having unequal air gap between stator and rotor, the inner surface of stator has processed 4NP stator slot and 4NP stator tooth vertically, and 4NP stator slot is arranged along the inner surface circumference uniform distribution of stator, is described stator tooth in the middle of adjacent two stator slots; Wherein, N is natural number, and the span of N is 2～15, and P is rotor pole logarithm; Exciting Windings for Transverse Differential Protection is placed in 4NP stator slot, and stator slot differential concatenation one by one, and Exciting Windings for Transverse Differential Protection is distributed in the equal turn numbers in each stator slot;4NP stator tooth is wound around sinusoidal signal winding and cosine signal winding respectively, and sinusoidal signal winding and cosine signal are arranged around component two-layer.
Harmonic elimination waves radial magnetic circuit multipolar resolver signal winding method for winding of the present invention, described method is:
For sinusoidal signal winding, arbitrarily choose an axis crossing stator and the plane not intersected with stator tooth, and with this plane for benchmark, along clockwise direction 4NP stator tooth is divided into 4P group, counted by plane, the counterclockwise coiling of first group adjacent N number of stator tooth, N number of stator tooth second group adjacent coiling clockwise, other 4 (P-1) organize the winding mode of stator tooth and first group, second group stator tooth is identical; The canoe of cosine signal winding is identical with sinusoidal signal winding, and phase place differs 90 ° of electrical angles; And the number of turn of sinusoidal signal winding and cosine signal winding is all by sinusoidal rule change.
The method have the advantages that
1, the harmonic elimination waves radial magnetic circuit multipolar resolver of the present invention adopts the winding mode of novel sinusoidal signal winding and cosine signal winding, improves certainty of measurement. It is simple, easy to process that the present invention has compact conformation, form, applied widely, the feature that suitable application area is wide, can be applicable to the multiple fields such as electric automobile, aviation and space flight.
2, the harmonic elimination waves radial magnetic circuit multipolar resolver of the present invention has mechanical contact, processing is simple, use the features such as safety, its special winding construction can weaken higher harmonic content in air-gap permeance effectively, improve certainty of measurement, it is adaptable to the speed of servosystem and position sensor.
3, Exciting Windings for Transverse Differential Protection such as is at circle winding, sinusoidal signal winding and the cosine signal winding is unequal turns winding, by sinusoidal rule winding displacement. This radial magnetic circuit multipolar resolver compact conformation, volume is little, has wide range of applications.
4, the method for the present invention can be effectively reduced harmonic error content, thus lifting up high measurement accuracy on existing magnetoresistance transformer basis.
Accompanying drawing explanation
Fig. 1 is the structural representation of the harmonic elimination waves radial magnetic circuit multipolar resolver of the present invention;
Fig. 2 be the harmonic elimination waves radial magnetic circuit multipolar resolver of the present invention just, the number of turn scattergram of cosine signal winding, in figure E refer to for sinusoidal phase, F refer to for cosine phase, black region is expressed as the number of turn value of corresponding signal winding.
Component names shown in figure and label are as follows:
Rotor 1, stator 2, air gap 3, sinusoidal signal winding 4, cosine signal winding 5, plane 6, stator slot 7, Exciting Windings for Transverse Differential Protection 8, stator tooth 9.
Detailed description of the invention
Detailed description of the invention one: as shown in Figure 1 and Figure 2, harmonic elimination waves radial magnetic circuit multipolar resolver, including stator 2, rotor 1, Exciting Windings for Transverse Differential Protection 8, sinusoidal signal winding 4 and cosine signal winding 5; Stator 2 is drum; There is between stator 2 and rotor 1 unequal air gap 3, the inner surface of stator 2 has processed 4NP stator slot 7 and 4NP stator tooth 9 vertically, 4NP stator slot 7 is arranged along the inner surface circumference uniform distribution of stator 2, is described stator tooth 9 in the middle of adjacent two stator slots 7; Wherein, N is natural number, and the span of N is 2～15, and P is rotor 1 number of pole-pairs; Exciting Windings for Transverse Differential Protection 8 is placed in 4NP stator slot 7, and stator slot 7 differential concatenation one by one, and Exciting Windings for Transverse Differential Protection 8 is distributed in the equal turn numbers in each stator slot 7;Being wound around sinusoidal signal winding 4 and cosine signal winding 5 on 4NP stator tooth 9 respectively, and sinusoidal signal winding 4 and 5 points of two-layers of cosine signal winding are arranged, namely sinusoidal signal winding 4 and cosine signal winding 5 are divided into different layers. Rotor 1 outer ring is in strict accordance with sinusoidal rule change.
Exciting Windings for Transverse Differential Protection 8, sinusoidal signal winding 4 and cosine signal winding 5 are centralized winding. Exciting Windings for Transverse Differential Protection 8 is for waiting circle winding, and sinusoidal signal winding 4 and cosine signal winding 5 are unequal turns winding, by sinusoidal rule winding displacement.
Described rotor 1 is made up of permeability magnetic material, and rotor 1 is radial convex electrode structure; Described radial convex electrode structure is that the P adopting the design of magnetic field optimization function is to pole sinusoidal structured. Can be that output winding Sine distribution formula EMF waveform occurs.
Described stator 2 is the iron core laminated by several pieces ring-shaped silicon steel sheets. This structure can be effectively reduced loss.
The total number of turns of described sinusoidal signal winding 4 is equal with cosine signal winding 5 total number of turns. Ensure just, the output potential amplitude of cosine signal winding equal.
Detailed description of the invention two: as shown in Figure 1 and Figure 2, the harmonic elimination waves radial magnetic circuit multipolar resolver signal winding method for winding described in detailed description of the invention one, described method is:
For sinusoidal signal winding 4, arbitrarily choose an axis crossing stator 2 and the plane 6 not intersected with stator tooth 9, and with this plane 6 for benchmark, along clockwise direction 4NP stator tooth 9 is divided into 4P group, counted by plane 6, the counterclockwise coiling of first group adjacent N number of stator tooth 9, N number of stator tooth 9 second group adjacent coiling clockwise, other 4 (P-1) organize the winding mode of stator tooth 9 and first group, second group stator tooth 9 is identical; The canoe of cosine signal winding 5 is identical with sinusoidal signal winding 4, and phase place differs 90 ° of electrical angles; And the number of turn of sinusoidal signal winding 4 and cosine signal winding 5 is all by sinusoidal rule change.
Detailed description of the invention three: as shown in Figure 1 and Figure 2, the harmonic elimination waves radial magnetic circuit multipolar resolver signal winding method for winding described in detailed description of the invention two,
For sinusoidal signal winding 4, the number of turn is distributed as
For cosine signal winding 5, the number of turn is distributed as
In formula, W1It is the number of turn of sinusoidal signal winding 4, W on a stator tooth 92It is the number of turn of cosine signal winding 5, W on a stator tooth 91、W2Value round, W1、W2Reverse coiling is represented during for negative value; Q1For prefetching the amplitude of sinusoidal signal winding 4 number of turn; Q2For prefetching the amplitude of cosine signal winding 5 number of turn, Q1、Q2Unit be circle; A1、A2Respectively stator tooth 9 number of sinusoidal signal winding 4 and cosine signal winding 5 middle-range plane 9, A1、A2Span is 0～4N.
Claims (2)
1. harmonic elimination waves radial magnetic circuit multipolar resolver signal winding method for winding, including stator (2), rotor (1), Exciting Windings for Transverse Differential Protection (8), sinusoidal signal winding (4) and cosine signal winding (5); Stator (2) is drum; There is between stator (2) and rotor (1) unequal air gap (3), the inner surface of stator (2) has processed 4NP stator slot (7) and 4NP stator tooth (9) vertically, 4NP stator slot (7) is arranged along the inner surface circumference uniform distribution of stator (2), is described stator tooth (9) in the middle of adjacent two stator slots (7); Wherein, N is natural number, and the span of N is 2 ~ 15, and P is rotor (1) number of pole-pairs; Exciting Windings for Transverse Differential Protection (8) is placed in 4NP stator slot (7), and stator slot (7) differential concatenation one by one, and Exciting Windings for Transverse Differential Protection (8) is distributed in the equal turn numbers in each stator slot (7);4NP stator tooth (9) is wound around sinusoidal signal winding (4) and cosine signal winding (5) respectively, and sinusoidal signal winding (4) and cosine signal winding (5) point two-layer are arranged, it is characterized in that: described method is:
For sinusoidal signal winding (4), arbitrarily choose an axis crossing stator (2) and the plane (6) not intersected with stator tooth (9), and with this plane (6) for benchmark, along clockwise direction 4NP stator tooth (9) is divided into 4P group, counted by plane (6), N number of stator tooth 9 first group adjacent counterclockwise coiling, the coiling clockwise of second group adjacent N number of stator tooth 9, other 4 (P-1) organize the winding mode of stator tooth 9 and first group, second group stator tooth 9 is identical; The canoe of cosine signal winding (5) is identical with sinusoidal signal winding (4), and phase place differs 90 ° of electrical angles; And the number of turn of sinusoidal signal winding (4) and cosine signal winding (5) is all by sinusoidal rule change.
2. harmonic elimination waves radial magnetic circuit multipolar resolver signal winding method for winding according to claim 1, is characterized in that:
For sinusoidal signal winding (4), the number of turn is distributed as
For cosine signal winding (5), the number of turn is distributed as
In formula, W1It is the number of turn of the upper sinusoidal signal winding (4) of a stator tooth (9), W2It is the number of turn of the upper cosine signal winding (5) of a stator tooth (9), W1、W2Value round, W1、W2Reverse coiling is represented during for negative value; Q1For prefetching the amplitude of sinusoidal signal winding (4) number of turn; Q2For prefetching the amplitude of cosine signal winding (5) number of turn, Q1、Q2Unit be circle; A1、A2Respectively stator tooth (9) number of sinusoidal signal winding (4) and cosine signal winding (5) middle-range plane (9), A1、A2Span is 0 ~ 4N.
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| CN106767954A (en) * | 2017-01-17 | 2017-05-31 | 上海世昱电子技术有限公司 | A kind of Rotary transformer system and the rotary body with this Rotary transformer system |
| CN107612262B (en) * | 2017-11-03 | 2023-09-19 | 西安广源机电技术有限公司 | Limited angle motor with large angle range |
| CN110661392B (en) * | 2018-06-29 | 2024-05-24 | 广东威灵汽车部件有限公司 | Rotary transformer |
| CN109459069B (en) * | 2018-12-17 | 2023-11-07 | 焦明 | Differential absolute type circular induction synchronizer and angle measurement method thereof |
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| JP2901035B2 (en) * | 1992-12-21 | 1999-06-02 | 株式会社日立製作所 | Rotary transformer |
| CN102543409A (en) * | 2012-01-09 | 2012-07-04 | 美的威灵电机技术（上海）有限公司 | Winding method for stator of reluctance type rotary transformer |
| CN102664098A (en) * | 2012-06-06 | 2012-09-12 | 哈尔滨工业大学 | Outer rotor axial magnetic circuit reluctance type rotary transformer with multiple pairs of poles for space manipulator |
| CN102842412B (en) * | 2012-07-30 | 2014-09-03 | 哈尔滨工业大学 | Co-excitation coarse-refined coupling magnetic resistance type rotary transformer |
| CN103413666A (en) * | 2013-08-17 | 2013-11-27 | 哈尔滨工业大学 | Common excitation coarse-fine coupling radial magnetic resistance type rotary transformer |
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