CN106847476B - VR Two Speed Resolver - Google Patents
VR Two Speed Resolver Download PDFInfo
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- CN106847476B CN106847476B CN201710186221.6A CN201710186221A CN106847476B CN 106847476 B CN106847476 B CN 106847476B CN 201710186221 A CN201710186221 A CN 201710186221A CN 106847476 B CN106847476 B CN 106847476B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The present invention discloses a kind of VR Two Speed Resolver, which includes rotor and stator, and the stator includes stator core, input winding, output winding and compensative winding；The input winding, output winding and compensative winding are set around in the stator core, and the compensative winding is concatenated with the output winding in being wholely set, and the compensative winding is to compensate the voltage stationary component for exporting winding.Technical solution of the present invention proposes a kind of simple VR Two Speed Resolver of voltage stationary component collocation structure.
Description
Technical field
The present invention relates to rotary transformer field, in particular to a kind of VR Two Speed Resolver.
Background technique
VR Two Speed Resolver is a kind of high precision angle sensor based on magnetic resistance change rate principle, has knot
The advantages that structure is simple, measurement accuracy is high.As shown in Figure 1, VR Two Speed Resolver is made of stator, rotor, input around
Group R1 ' R3 ' and output winding S1 ' S3 ', S2 ' S4 ' are wound in stator core.When the rotation of rotor relative stator, air gap magnetic
It leads and changes, change so as to cause the mutual inductance between input winding R1 ' R3 ' and output winding S1 ' S3 ', S2 ' S4 ', it is defeated
Out winding S1 ' S3 ', S2 ' S4 ' induced potential accordingly change, to detect the angular position of rotation information of rotor.In reluctance type
In multipolar resolver, since input winding R1 ' R3 ' and output winding S1 ' S3 ', S2 ' S4 ' are wound in stator core,
Exist between winding not by air-gap and the direct-coupled magnetic flux of rotor, while stray capacitance increase induces interference electricity between winding
Pressure, so that the positive half-wave of output voltage of output winding and the amplitude of negative half-wave differ, as shown in Fig. 2, for the defeated of output winding
Voltage U outo' with the relation schematic diagram of rotor rotational angle α ', that is, export the output voltage U of windingo' there are voltage stationary component,
The measurement accuracy of product is seriously affected.
In the prior art, in order to compensate for the voltage stationary component of output winding, as shown in Figure 1, being set in stator core
Two sets of symmetrical compensative winding S1 ' S3 ' and S2 ' S4 ' are equipped with, are in series with the first divider resistance between S1 ' S3 ' and B1 ' B3 ',
The second divider resistance (the first divider resistance and the second divider resistance is not shown in the figure) is in series between S2 ' S4 ' and B2 ' B4 ',
Under the action of divider resistance, compensative winding generates constant potential equal with the amplitude of voltage stationary component, opposite in phase, right
The voltage stationary component of output winding compensates, and the amplitude of the positive half-wave and negative half-wave that make output voltage is equal, to improve essence
Degree.Wherein, the winding method of compensative winding S1 ' S3 ' and S2 ' S4 ' are similar to input winding R1 ' R3 ', are reversely to go here and there by slot
It connects.
Determine compensative winding the number of turns and divider resistance resistance value during, as shown in figure 3, from electrical zero position
Starting, voltage true amplitude and voltage negative amplitude in measurement cosine output winding S1 ' S3 ' a cycle adjust variable resistance box,
Make cosine output voltage Uc' true amplitude and negative amplitude absolute value difference it is as small as possible, obtain the resistance value and note of divider resistance
Record continues experiment until calibration, the calibration method of sine output winding S2 ' S4 ' export winding S1 ' S3 ' with cosine.
However, two sets of compensative windings and benefit is additionally arranged in this compensation way needs in VR Two Speed Resolver
Repay resistance, compensative winding has independent terminals, and is reversely serially connected in stator core by slot, and with compensation resistance and output
Winding connection causes the circuit structure of VR Two Speed Resolver complicated.And in a calibration process, compensation resistance values are really
It is cumbersome to determine process.
Summary of the invention
The main object of the present invention is to propose a kind of VR Two Speed Resolver, it is intended to it is multiple to solve above-mentioned compensation circuit
Miscellaneous cumbersome problem proposes a kind of simple VR Two Speed Resolver of collocation structure.
To achieve the above object, VR Two Speed Resolver proposed by the present invention, including rotor and stator, it is described fixed
Attached bag includes stator core, input winding, output winding and compensative winding；The input winding, output winding and compensative winding around
In the stator core, the compensative winding is concatenated with the output winding in being wholely set, the compensative winding to
Compensate the voltage stationary component of the output winding.
Preferably, the stator core is folded by multiple stator lasminations, and the stator lasmination is silicon steel sheet.
Preferably, the stator core includes core body and stator tooth, and the core body is annular in shape；At least two institutes
It states stator tooth to be uniformly arranged on the inner periphery of the core body, forms stator slot between adjacent two stator tooth.
Preferably, the compensative winding is set around on the stator tooth.
Preferably, the output winding includes that sinusoidal output winding and cosine export winding；The input winding, it is described just
String exports winding and cosine output winding along the radial direction interval winding of the stator core.
Preferably, the compensative winding includes sinusoidal compensative winding and cosine compensative winding, the sine compensative winding with
The sinusoidal output winding concatenation is in be wholely set；It is in integrally to set that the cosine compensative winding is concatenated with cosine output winding
It sets；The sine compensative winding and the cosine compensative winding are rotating around on the different stator tooths.
Preferably, the sinusoidal output winding is equal with the cosine output effective turn of winding.
Preferably, the Proportional coefficient K of the VR Two Speed Resolver is (Us0+Uc0)Ni/(2Ui0No), Ui0For institute
State the specified driving voltage of input winding, Us0It is U for driving voltagei0Shi Suoshu sine exports the maximum output voltage of winding, Uc0
It is U for driving voltagei0Shi Suoshu cosine exports the maximum output voltage of winding, NiFor the number of turns of the input winding, NoFor institute
State the effective turn of sinusoidal output winding or cosine output winding.
Preferably, the number of turns of the sinusoidal compensative winding is (Uws/Ui0)*(Ni/ K), UwsFor the sinusoidal output winding
Voltage stationary component.
Preferably, the number of turns of the cosine compensative winding is (Uwc/Ui0)*(Ni/ K), UwcWinding is exported for the cosine
Voltage stationary component.
In technical solution of the present invention, VR Two Speed Resolver includes rotor and stator, and stator includes stator core
100, winding R1R3, output winding S1A, S2B and compensative winding AS3, BS4 are inputted, input winding R1R3, exports winding S1A,
S2B and compensative winding AS3, BS4 are set around in stator core 100, compensative winding AS3, BS4 and output winding S1A, S2B concatenation
In being wholely set, stator core 100 to increase input winding R1R3 and export the mutual inductance between winding S1A, S2B, input around
R1R3 is under the action of driving voltage for group, generates induced magnetic field, generates induced potential in output winding S1A, S2B, compensation around
Group AS3, BS4 are concatenated with output winding S1A, S2B respectively, to compensate due to input winding R1R3 and export winding S1A, S2B
The interference voltage that the inductions such as stray capacitance generate between coupling, winding, the voltage for eliminating external terminal S1S3 and S2S4 output are constant
Component proposes a kind of simple VR Two Speed Resolver of structure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the stator structure schematic diagram of VR Two Speed Resolver in the prior art；
Fig. 2 is that the relationship of the output voltage of VR Two Speed Resolver and rotor rotational angle is illustrated in the prior art
Figure；
Fig. 3 is the calibration circuit diagram of VR Two Speed Resolver in the prior art；
Fig. 4 is the stator structure schematic diagram of one embodiment of VR Two Speed Resolver of the present invention；
Fig. 5 is the electrical block diagram of VR Two Speed Resolver in Fig. 4.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of VR Two Speed Resolver.
In embodiments of the present invention, as shown in figure 4, the VR Two Speed Resolver includes rotor and stator, stator
It is input winding R1R3, defeated including stator core 100, input winding R1R3, output winding S1A, S2B and compensative winding AS3, BS4
Winding S1A out, S2B and compensative winding AS3, BS4 are set around in stator core, compensative winding AS3, BS4 and output winding S1A,
S2B concatenation is in being wholely set, and compensative winding AS3, BS4 are to compensate output winding S1A, the voltage stationary component of S2B.
Specifically, VR Two Speed Resolver can be used for measuring rotational angle or rotational angular velocity.In general, rotor is same
The heart is set to the inside (rotor is not shown in Fig. 4) of circular stator, and the outer rim of rotor core has rotor tooth, stator core
100 inner edge has stator tooth 120, and the rotation of rotor relative stator leads to the variation of air-gap field, and then causes to export winding
On induced potential variation.In VR Two Speed Resolver, input winding R1R3 and output winding S1A, S2B around
In stator core 100, during the rotation of rotor relative stator, air-gap permeance changes, and often turns over a rotor
Tooth pitch, air-gap permeance change a cycle, and when rotor rotates one week, air-gap permeance changes rotor tooth several periods.Wherein, turn
The sub- number of teeth is the number of pole-pairs of magnetic pole type multipolar resolver.In order to compensate for magnetic flux direct-coupled between winding, stray capacitance
The stationary component of output voltage caused by the interference voltage of generations is waited, the VR Two Speed Resolver in the present invention also wraps
Include compensative winding AS3, BS4, wherein it is in be wholely set that compensative winding AS3 concatenate with output winding S1A, that is, compensative winding
AS3 and output winding S1A is substantially two parts of the same coil windings, take S1, S3 as the external terminal of the coil windings, with
Export compensated voltage, compensative winding BS4 concatenate with output winding S2B be in be wholely set, that is, compensative winding BS4 with it is defeated
Winding S2B is substantially two parts of the same coil windings out, take S2, S4 as the external terminal of the coil windings, is mended with exporting
Voltage after repaying.It determines compensative winding according to voltage stationary component to concatenate with the forward direction for exporting winding or reversely concatenate, to realize
Compensation, keeps the output voltage positive half-wave of the external terminal S1S3 or S2S4 of coil windings and minus half wave amplitude suitable, so as to improve
The measurement accuracy of VR Two Speed Resolver.
In technical solution of the present invention, VR Two Speed Resolver includes rotor and stator, and stator includes stator core
100, winding R1R3, output winding S1A, S2B and compensative winding AS3, BS4 are inputted, input winding R1R3, exports winding S1A,
S2B and compensative winding AS3, BS4 are set around in stator core 100, compensative winding AS3, BS4 and output winding S1A, S2B concatenation
In being wholely set, stator core 100 to increase input winding R1R3 and export the mutual inductance between winding S1A, S2B, input around
R1R3 is under the action of driving voltage for group, generates induced magnetic field, generates induced potential in output winding S1A, S2B, compensation around
Group AS3, BS4 are concatenated with output winding S1A, S2B respectively, to compensate due to input winding R1R3 and export winding S1A, S2B
The interference voltage that the inductions such as stray capacitance generate between coupling, winding, the voltage for eliminating external terminal S1S3 and S2S4 output are constant
Component proposes a kind of simple VR Two Speed Resolver of structure.
In this practical new embodiment, stator core is folded by multiple stator lasminations, and stator lasmination is silicon steel
Piece, silicon steel sheet are a kind of carbon containing extremely low silicon-iron soft magnetic alloy, resistivity with higher and magnetic conductivity, advantageously reduce coercive
Power and iron loss improve the performance of VR Two Speed Resolver.
In the present embodiment, as shown in figure 4, stator core 100 includes core body 110 and stator tooth 120, core body
110 is annular in shape, and at least two stator tooths 120 are uniformly arranged on the inner periphery of core body 110, adjacent two stator tooth 120 it
Between form stator slot.Input winding R1R3 is reversely concatenated by slot, output winding include sinusoidal output winding S2B and cosine output around
Group S1A, correspondingly, compensative winding includes sine compensative winding BS4 and cosine compensative winding AS3, the sinusoidal winding S2B and just of exporting
String compensative winding BS4 concatenation is in being wholely set, and cosine output winding S1A and cosine compensative winding AS3 concatenation is in being wholely set, just
String exports winding S2B and the number of turns of cosine output winding S1A is changed by sine and cosine rule, and inputs winding R1R3, sinusoidal output
Winding S2B and cosine output winding S1A is reduced along the radial direction interval winding of stator core 100 with optimizing the distribution in magnetic field
Interference between winding, and the terminal with compact integral structure of stator is illustrated.
Further, compensative winding is set around on stator tooth, since voltage stationary component is smaller with respect to output voltage, because
This, the number of turns of compensative winding is also less, and the compensation to voltage stationary component can be realized in general a few circle compensative windings.Sine compensation
Winding BS4 and cosine compensative winding AS3 is rotating around being set on different stator tooths 120, to reduce sine compensative winding BS4 and remaining
Interference between string compensative winding AS3.
In the present embodiment, the effective turn of sinusoidal output winding S2B and cosine output winding S1A are equal, input around
Under the incentive action of group R1R3, sinusoidal signal and cosine signal are generated respectively, would know that the angular position of rotation of rotor after resolving
Information.The number of turns of compensative winding can be determined according to the stationary component of output voltage in experiment, after determining the number of turns of compensative winding,
Only the rotation of reluctance type multipole need to can be realized according to the number of turns of determining compensative winding direct coiling compensative winding in process of production
Change the large-scale serial production of depressor.
Electrical block diagram in the present embodiment is as shown in Figure 5, wherein the number of turns N of sinusoidal compensative winding BS4sIt can root
According to Ns=(Uws/Ui0)*(Ni/ K) it determines, UwsFor the voltage stationary component of sinusoidal output winding S2B.Cosine compensative winding AS3's
The number of turns NcIt can be according to Nc=(Uwc/Ui0)*(Ni/ K) it determines, UwcThe voltage stationary component of winding S1A is exported for cosine.
Wherein, the voltage stationary component U of sinusoidal output winding S2BwsWith the voltage stationary component of cosine output winding S1A
UwcFor the true amplitude of maximum output voltage and the difference of negative amplitude.K is the proportionality coefficient of VR Two Speed Resolver, with circuit
Structure is related, can be according to K=(Us0+Uc0)Ni0/(2UiNo) determine, wherein Ui0For input winding R1R3 specified driving voltage,
Us0It is U for driving voltagei0When sine output winding S2B maximum output voltage, Uc0It is U for driving voltagei0When cosine output around
The maximum output voltage of group S1A, NiFor the number of turns for inputting winding, NoIt is that sinusoidal output winding S2B or cosine export winding S1A's
Effective turn.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (5)
1. a kind of VR Two Speed Resolver, including rotor and stator, which is characterized in that the stator includes:
Stator core, the stator core include core body and stator tooth, form stator slot between adjacent two stator tooth,
The core body is annular in shape, and at least two stator tooths are uniformly arranged on the inner periphery of the core body；
Winding is inputted, is set around in the stator core；
Winding is exported, is set around in the stator core, the output winding includes that sinusoidal output winding and cosine export winding,
The sinusoidal output winding is equal with the cosine output effective turn of winding, the input winding, the sine export around
The radial direction interval winding of group and cosine output winding along the stator core, the sinusoidal output winding and described remaining
The number of turns that string exports winding is changed by sine and cosine rule；
Compensative winding is set around on the stator tooth, and it is in be wholely set that the compensative winding is concatenated with the output winding, described
Voltage stationary component of the compensative winding to compensate the output winding, the compensative winding includes sinusoidal compensative winding and cosine
Compensative winding, it is described sine compensative winding and the cosine compensative winding rotating around be set to the different stator tooths on, it is described
Sinusoidal compensative winding concatenate with the sinusoidal output winding in being wholely set, the cosine compensative winding and cosine output around
Group concatenation is in be wholely set.
2. VR Two Speed Resolver as described in claim 1, which is characterized in that the stator core is by multiple stators
Lamination folds, and the stator lasmination is silicon steel sheet.
3. VR Two Speed Resolver as described in claim 1, which is characterized in that the reluctance type multipole rotates transformation
The Proportional coefficient K of device is (Us0+Uc0)Ni/(2Ui0No), Ui0For the specified driving voltage of the input winding, Us0For driving voltage
For Ui0Shi Suoshu sine exports the maximum output voltage of winding, Uc0It is U for driving voltagei0Shi Suoshu cosine exports winding most
Big output voltage, NiFor the number of turns of the input winding, NoThe effective of winding is exported for the sinusoidal output winding or the cosine
The number of turns.
4. VR Two Speed Resolver as claimed in claim 3, which is characterized in that the number of turns of the sine compensative winding
For (Uws/Ui0)*(Ni/ K), UwsFor the voltage stationary component of the sinusoidal output winding.
5. VR Two Speed Resolver as claimed in claim 3, which is characterized in that the number of turns of the cosine compensative winding
For (Uwc/Ui0)*(Ni/ K), UwcThe voltage stationary component of winding is exported for the cosine.
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| CN201710186221.6A CN106847476B (en) | 2017-03-24 | 2017-03-24 | VR Two Speed Resolver |
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| CN106847476B true CN106847476B (en) | 2019-03-05 |
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| CN108539931B (en) * | 2018-01-31 | 2024-02-02 | 诠脑机电设备（深圳）有限公司 | Servo driving device using rotary transformer as sensor |
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| CN201018327Y (en) * | 2007-02-13 | 2008-02-06 | 西安微电机研究所 | Magnetic resistance type multipole rotary transformer |
| CN102723185B (en) * | 2012-06-06 | 2014-02-05 | 哈尔滨工业大学 | Double-channel axial magnetic circuit reluctance type rotary transformer |
| DE102014106617B4 (en) * | 2014-05-12 | 2019-06-06 | Rainer Kurt Jenjahn | Wireless energy transmitter |
| CN104154857B (en) * | 2014-08-13 | 2017-01-18 | 北京航天控制仪器研究所 | Low-power magneto-resistive angle sensor with compensation |
| CN204695950U (en) * | 2015-03-27 | 2015-10-07 | 西安微电机研究所 | A kind of industrialization magnetoresistance transformer |
| CN205723135U (en) * | 2016-06-27 | 2016-11-23 | 陕西博华高低压开关成套设备制造有限公司 | A kind of asymmetric tooth magnetoresistance transformer |
| CN206619470U (en) * | 2017-03-24 | 2017-11-07 | 深圳市德西机电有限责任公司 | VR Two Speed Resolver |
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