CN107781338A - A kind of method of excitation-type eddy current damper and damped coefficient continuously adjustabe - Google Patents
A kind of method of excitation-type eddy current damper and damped coefficient continuously adjustabe Download PDFInfo
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- CN107781338A CN107781338A CN201610727157.3A CN201610727157A CN107781338A CN 107781338 A CN107781338 A CN 107781338A CN 201610727157 A CN201610727157 A CN 201610727157A CN 107781338 A CN107781338 A CN 107781338A
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- coil
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- differential protection
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
Abstract
The present invention relates to a kind of method of excitation-type eddy current damper and damped coefficient continuously adjustabe, wherein stator core (2) is overrided to form by stator punching, 12 grooves are uniformly provided with stator core, Exciting Windings for Transverse Differential Protection (3) is placed in each groove, Exciting Windings for Transverse Differential Protection (3) uses centralized winding method, it is followed successively by by groove positive, oppositely positioned, Exciting Windings for Transverse Differential Protection (3) passes to and forms six pairs of N, S pole induced fields after exciting current in the range of cylindrical 360 degree of whole stator core (2), and each N poles and the extremely shared electrical angles of S are 30 degree；The inner circle of stator core (2) and the fixation axis connection of damper, the cylindrical gap between rotor (1) yoke inner circle of stator core (2) are working gas gap.Present invention improves conventional eddy current damper damped coefficient can not adjust or can only shut down carry out structure on regulation, and can not real-time closed-loop control mode of operation.
Description
Technical field
Eddy current damper designing technique that is continuous, adjusting in real time can be carried out to damped coefficient the present invention relates to a kind of.
Background technology
Traditional eddy current damper, it is caused in the conductor due to using hard magnetic material to produce fixed magnetic field
Eddy current effect is only related to the rotary speed of conductor, therefore damped coefficient is fixed, is necessarily had as long as conductor rotates just
The generation of damping force.In some occasions for needing to adjust damped coefficient in real time, it is especially desirable to which damper is not playing work
The workplace that the damping force of used time output is zero, the damper of this fixed damping coefficient can not meet the need of system work
Ask.
Excitation-type eddy current damper controls exciting current in Exciting Windings for Transverse Differential Protection by changing the size of excitation voltage amplitude
Size, the size of induced field in adjustment work air gap, so as to change the size of current vortex in damper realize damped coefficient from
Continuously adjusting for zero beginning controls with real-time closed-loop, and there is electromagnetism interference, high resolution, simple in construction, environment to adapt to strong
Feature.
The real content of the invention
The purpose of the present invention is：It is proposed the designing technique of excitation-type eddy current damper.
The technical scheme is that：A kind of excitation-type eddy current damper, including：Rotor 1, stator core 2, excitation around
Group 3, rotor 1 is made up of damping cup and yoke, and damping cup is low-resistance Cu alloy material, and yoke is high saturation magnetically soft alloy material；
Stator core 2 is overrided to form by the stator punching of high saturation magnetically soft alloy material, 12 grooves is uniformly provided with stator core 2, often
Place Exciting Windings for Transverse Differential Protection 3 in individual groove, Exciting Windings for Transverse Differential Protection 3 uses centralized winding method, is followed successively by by groove positive, oppositely positioned, encourages
Magnetic winding 3 passes to and forms six pairs of N, S pole induced fields in the range of cylindrical 360 degree of whole stator core 2 after exciting current, often
Individual N poles and the extremely shared electrical angles of S are 30 degree；The inner circle of stator core 2 and the fixation axis connection of damper, stator core 2
The cylindrical gap between the yoke inner circle of rotor 1 is working gas gap, the output axis connection of the cylindrical and damper of rotor 1.
A kind of method for the damped coefficient continuously adjustabe for realizing eddy current damper, it is characterised in that：As claim 1 institute
State and Exciting Windings for Transverse Differential Protection 3 is installed in eddy current damper, Exciting Windings for Transverse Differential Protection 3 shares 12 coils, is embedded in the form of concentratred winding
In stator core 2, for the 1st coil winding on the 1st tooth of stator core 2, the 2nd coil opposite direction is wound on the 2nd
On tooth, the coiling direction of the 3rd coil is identical with first coil, by that analogy, until the 12nd coil presses opposite direction coiling
On the 12nd tooth.
Required according to the performance indications of damper, each coil can be realized by changing the initial and end mode of connection of 12 coils
Parallel connection, series connection, series/parallel mixing diversified forms so that identical it is external input excitation voltage under, realize damping
The flexible modulation of a variety of scopes of coefficient.For each mode of connection, excitation is controlled by the size for changing excitation voltage amplitude
The size of exciting current in winding 3, the size of induced field in adjustment work air gap, so as to change the big of current vortex in damper
It is small to realize that zero-based continuously adjust of damped coefficient controls with real-time closed-loop.
It is an advantage of the invention that：The excitation-type eddy current damper of the present invention, by the size for changing excitation voltage amplitude
The size of current in Exciting Windings for Transverse Differential Protection is controlled, the size of induced field in adjustment work air gap, so as to change vortex flow in damping cup
Size realize the target of the zero-based continuously adjustabe of damped coefficient, while realize and do not changing the feelings of damper body structure
Under condition, real-time, the closed-loop control of damped coefficient, improving conventional eddy current damper damped coefficient can not adjust or can only stop
Machine carry out structure on regulation, and can not real-time closed-loop control mode of operation.The damped coefficient of excitation-type eddy current damper
It is linear with the size of exciting current.
Brief description of the drawings
Fig. 1 is excitation-type eddy current damper mounting means schematic diagram；
Fig. 2 is excitation-type eddy current damper structure chart；
Fig. 3 is Exciting Windings for Transverse Differential Protection series wiring mode；
Fig. 4 is the Exciting Windings for Transverse Differential Protection parallel connection mode of connection；
Fig. 5 is the Exciting Windings for Transverse Differential Protection series/parallel mixing mode of connection I；
Fig. 6 is the Exciting Windings for Transverse Differential Protection series/parallel mixing mode of connection II；
Fig. 7 is the Exciting Windings for Transverse Differential Protection series/parallel mixing mode of connection III；
Fig. 8 is the Exciting Windings for Transverse Differential Protection series/parallel mixing mode of connection IV；
Embodiment
Exciting Windings for Transverse Differential Protection shares 12 coils, is embedded in the form of concentratred winding in stator core, according to stator core
The requirement of groove area and damped coefficient determines the number of turn and enamel-covered wire line footpath of each coil；
On the 1st tooth of stator core, the 2nd coil opposite direction is wound on the 2nd tooth 1st coil winding, and the 3rd
The coiling direction of individual coil is identical with the 1st coil, by that analogy, until the 12nd coil is wound on the l2 tooth by opposite direction
On.
As shown in figure 3, the series wiring mode of Exciting Windings for Transverse Differential Protection 3 is：The primary side of 1st coil and the positive pole of excitation voltage connect
Connect, secondary connects the secondary of the 2nd coil；The primary side of 2nd coil connects the primary side of the 3rd coil, and the secondary of the 3rd coil connects
The secondary of 4 coils；The primary side of 4th coil connects the primary side of the 5th coil, by that analogy, until the secondary of the 12nd coil
It is connected with the negative pole of excitation voltage；
As shown in figure 4,3 mode of connection in parallel of Exciting Windings for Transverse Differential Protection is：The primary side of each coil connects with the positive pole of excitation voltage
Connect, secondary is connected with the negative pole of excitation voltage；In the case where identical excitation voltage and coil turn are constant, and tie side
Formula produces 12 times that exciting current is series wiring mode exciting current, therefore the damped coefficient of the mode of connection in parallel is series connection
12 times of the damped coefficient of line mode；
As shown in figure 5, the series/parallel of the Exciting Windings for Transverse Differential Protection 3 mixing mode of connection I is：The primary side of 1st coil and excitation voltage
Positive pole connects, and secondary connects the secondary of the 2nd coil, and the primary side of the 2nd coil and the negative pole of excitation voltage connect；3rd, 4 line
Circle repeats the 1st, 2 winding wiring mode, the like, until the 11st, 12 coil repeats the 1st, 2 winding wiring mode；
In the case where identical excitation voltage and coil turn are constant, the exciting current of the series/parallel mixing mode of connection I is series wiring
3 times of the exciting current of mode, therefore the damped coefficient of the series/parallel mixing mode of connection I is the damping system of series wiring mode
Several 3 times；
As shown in fig. 6, the series/parallel of the Exciting Windings for Transverse Differential Protection 3 mixing mode of connection II is：The primary side and excitation voltage of 1st coil
Positive pole connection, secondary connects the secondary of the 2nd coil；The primary side of 2nd coil connects the primary side of the 3rd coil, the 3rd coil
The negative pole of secondary and excitation voltage connects；4th, 5,6 coil repeats the 1st, 2,3 winding wiring mode, the like, until
10th, 11,12 coil repeats the 1st, 2,3 winding wiring mode；In the situation that identical excitation voltage and coil turn are constant
Under, the exciting current of the series/parallel mixing mode of connection II is 4/3 times of exciting current of series wiring mode, therefore series/parallel
The damped coefficient of the mixing mode of connection II is 4/3 times of the damped coefficient of series wiring mode；
As shown in fig. 7, the series/parallel of the Exciting Windings for Transverse Differential Protection 3 mixing mode of connection III is：The primary side and excitation voltage of 1st coil
Positive pole connection, secondary connects the secondary of the 2nd coil；The primary side of 2nd coil connects the primary side of the 3rd coil, the 3rd coil
Secondary connects the secondary of the 4th coil；The primary side of 4th coil and the negative pole of excitation voltage connect；5th, 6,7,8 coil repeats
1st, 2,3,4 winding wiring mode, the like, connect until the 9th, 10,11,12 coil repeats the 1st, 2,3,4 coil
Line mode；In the case where identical excitation voltage and coil turn are constant, the exciting current of the series/parallel mixing mode of connection III is
3/4 times of the exciting current of series wiring mode, therefore the damped coefficient of the series/parallel mixing mode of connection III is series wiring side
3/4 times of the damped coefficient of formula；
As shown in figure 8, the series/parallel of the Exciting Windings for Transverse Differential Protection 3 mixing mode of connection IV is：The primary side and excitation voltage of 1st coil
Positive pole connection, secondary connects the secondary of the 2nd coil；The primary side of 2nd coil connects the primary side of the 3rd coil, the 3rd coil
Secondary connects the secondary of the 4th coil；The primary side of 4th coil connects the primary side of the 5th coil, by that analogy, until the 6th coil
Secondary and excitation voltage negative pole connect；7th, 8,9,10,11,12 coil repeats connecing for the 1st, 2,3,4,5,6 coil
Line mode；In the case where identical excitation voltage and coil turn are constant, the exciting current of the series/parallel mixing mode of connection IV is
1/3 times of the exciting current of series wiring mode, therefore the damped coefficient of the series/parallel mixing mode of connection IV is series wiring side
1/3 times of the damped coefficient of formula.
Embodiment
Series wiring mode：
On the 1st tooth of stator core, the 2nd coil opposite direction is wound on the 2nd tooth 1st coil winding, and the 3rd
The coiling direction of individual coil is identical with first coil, by that analogy, until the 12nd coil is wound on the 12nd by opposite direction
On tooth.
The primary side of 1st coil and the positive pole of excitation voltage connect, and secondary connects the secondary of the 2nd coil；2nd coil
Primary side connects the primary side of the 3rd coil, and the secondary of the 3rd coil connects the secondary of the 4th coil；The primary side of 4th coil connects the 5th
The primary side of coil, by that analogy, until the negative pole connection of the secondary and excitation voltage of the 12nd coil；
This excitation-type eddy current damper, Exciting Windings for Transverse Differential Protection use the tandem mode of connection, and exciting current can be realized from zero
What is started is continuously adjusted, and the closed-loop control of exciting current is realized by the closed-loop control of excitation voltage amplitude, so as to realize resistance
The closed-loop control of Buddhist nun's coefficient.
Claims (8)
1. a kind of excitation-type eddy current damper, including rotor (1), stator core (2), Exciting Windings for Transverse Differential Protection (3), it is characterised in that：
Rotor (1) is made up of damping cup and yoke, and damping cup is low-resistance Cu alloy material, and yoke is high saturation magnetically soft alloy material；It is fixed
Sub- iron core (2) is overrided to form by the stator punching of high saturation magnetically soft alloy material, 12 grooves is uniformly provided with stator core, each
Place Exciting Windings for Transverse Differential Protection (3) in groove, Exciting Windings for Transverse Differential Protection (3) uses centralized winding method, be followed successively by by groove it is positive, oppositely positioned,
Exciting Windings for Transverse Differential Protection (3) passes to and forms six pairs of N, S pole induced fields in the range of cylindrical 360 degree of stator core (2) after exciting current,
Each N poles and the extremely shared electrical angles of S are 30 degree；The inner circle of stator core (2) and the fixation axis connection of damper, stator core
(2) gap between the yoke inner circle of cylindrical and rotor (1) is working gas gap, the output of the cylindrical and damper of rotor (1)
Axis connection.
A kind of 2. method for the damped coefficient continuously adjustabe for realizing eddy current damper, it is characterised in that：
Step 1：Exciting Windings for Transverse Differential Protection (3) is installed in eddy current damper as claimed in claim 1, Exciting Windings for Transverse Differential Protection (3) shares 12
Coil, embedded in the form of concentratred winding in stator core (2), 1st tooth of first coil winding in stator core (2)
On, the 2nd coil opposite direction is wound on the 2nd tooth, and the coiling direction of the 3rd coil is identical with the 1st coil, with such
Push away, until the 12nd coil is wound on the 12nd tooth by opposite direction；
Step 2：Required according to the performance indications of damper, each line can be realized by changing the initial and end mode of connection of 12 coils
The parallel connection of circle, series connection, the diversified forms of series/parallel mixing, so that under the external input excitation voltage of identical, realize resistance
The flexible modulation of a variety of scopes of Buddhist nun's coefficient, for each mode of connection, the size by changing excitation voltage amplitude, which controls, encourages
The size of exciting current in magnetic winding (3), the size of induced field in adjustment work air gap, so as to change electric whirlpool in damper
The size of stream realizes that zero-based continuously adjust of damped coefficient controls with real-time closed-loop.
3. the method for damped coefficient continuously adjustabe as claimed in claim 2, it is characterised in that：Exciting Windings for Transverse Differential Protection (3) series wiring
Mode is：The primary side of 1st coil and the positive pole of excitation voltage connect, and secondary connects the secondary of the 2nd coil；2nd coil
Primary side connects the primary side of the 3rd coil, and the secondary of the 3rd coil connects the secondary of the 4th coil；The primary side of 4th coil connects the 5th
The primary side of coil, by that analogy, until the negative pole connection of the secondary and excitation voltage of the 12nd coil.
4. the method for damped coefficient continuously adjustabe as claimed in claim 2, it is characterised in that：Exciting Windings for Transverse Differential Protection (3) and tie
Mode is：The primary side of each coil is connected with the positive pole of excitation voltage, and secondary is connected with the negative pole of excitation voltage.
5. the method for damped coefficient continuously adjustabe as claimed in claim 2, it is characterised in that：Exciting Windings for Transverse Differential Protection (3) series/parallel mixes
Closing the mode of connection I is：The primary side of 1st coil and the positive pole of excitation voltage connect, and secondary connects the secondary of the 2nd coil, the 2nd
The primary side of coil and the negative pole of excitation voltage connect；3rd, 4 coil repeats the 1st, 2 winding wiring mode, the like, directly
The the 1st, 2 winding wiring mode is repeated to the 11st, 12 coil.
6. the method for damped coefficient continuously adjustabe as claimed in claim 2, it is characterised in that：Exciting Windings for Transverse Differential Protection (3) series/parallel mixes
Closing the mode of connection II is：The primary side of 1st coil and the positive pole of excitation voltage connect, and secondary connects the secondary of the 2nd coil；2nd
The primary side of individual coil connects the primary side of the 3rd coil, the negative pole connection of the secondary and excitation voltage of the 3rd coil；4th, 5,6 line
Circle repeats the 1st, 2,3 winding wiring mode, the like, connect until the 10th, 11,12 coil repeats the 1st, 2,3 coil
Line mode.
7. the method for damped coefficient continuously adjustabe as claimed in claim 2, it is characterised in that：Exciting Windings for Transverse Differential Protection (3) series/parallel mixes
Closing the mode of connection III is：The primary side of 1st coil and the positive pole of excitation voltage connect, and secondary connects the secondary of the 2nd coil；2nd
The primary side of individual coil connects the primary side of the 3rd coil, and the secondary of the 3rd coil connects the secondary of the 4th coil；The original of 4th coil
The negative pole of side and excitation voltage connects；5th, 6,7,8 coil repeats the 1st, 2,3,4 winding wiring mode, the like, directly
The the 1st, 2,3,4 winding wiring mode is repeated to the 9th, 10,11,12 coil.
8. the method for damped coefficient continuously adjustabe as claimed in claim 2, it is characterised in that：Exciting Windings for Transverse Differential Protection (3) series/parallel mixes
Closing the mode of connection IV is：The primary side of 1st coil and the positive pole of excitation voltage connect, and secondary connects the secondary of the 2nd coil；2nd
The primary side of individual coil connects the primary side of the 3rd coil, and the secondary of the 3rd coil connects the secondary of the 4th coil；The original of 4th coil
While the primary side of the 5th coil is connect, by that analogy, until the negative pole connection of the secondary and excitation voltage of the 6th coil；7th, 8,9,
10th, 11,12 coils repeat the mode of connection of the 1st, 2,3,4,5,6 coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727157.3A CN107781338B (en) | 2016-08-25 | 2016-08-25 | Excitation type eddy current damper and method for continuously adjusting damping coefficient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727157.3A CN107781338B (en) | 2016-08-25 | 2016-08-25 | Excitation type eddy current damper and method for continuously adjusting damping coefficient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107781338A true CN107781338A (en) | 2018-03-09 |
| CN107781338B CN107781338B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610727157.3A Active CN107781338B (en) | 2016-08-25 | 2016-08-25 | Excitation type eddy current damper and method for continuously adjusting damping coefficient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698558A (en) * | 2018-12-03 | 2019-04-30 | 邢益涛 | A kind of wireless energy transform device with noise-reducing design |
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| CN1609471A (en) * | 2004-11-04 | 2005-04-27 | 浙江大学 | Electric eddy-current damping device for rotary machine rotor |
| CN101402309A (en) * | 2008-10-08 | 2009-04-08 | 毕国忠 | Oscillation damping power collector for automobile |
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| CN103062307A (en) * | 2012-12-19 | 2013-04-24 | 哈尔滨工业大学 | Eddy-current damping vibration isolator with coplace air flotation orthogonal decoupling and two-dimensional flexible hinge angle decoupling |
| CN103233996A (en) * | 2013-04-28 | 2013-08-07 | 哈尔滨工业大学 | Linear electromagnetic damper with serially-connected magnetic circuit structure |
| CN104455141A (en) * | 2014-11-18 | 2015-03-25 | 南京航空航天大学 | Series magnetic circuit mixed excitation linear electromagnetic damper |
| CN105041936A (en) * | 2015-06-30 | 2015-11-11 | 上海材料研究所 | Installation method of eddy current retarder. |
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2016
- 2016-08-25 CN CN201610727157.3A patent/CN107781338B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095295A (en) * | 1997-10-09 | 2000-08-01 | Korea Advanced Institute Science And Technology | Rotary damper |
| CN1609471A (en) * | 2004-11-04 | 2005-04-27 | 浙江大学 | Electric eddy-current damping device for rotary machine rotor |
| CN101402309A (en) * | 2008-10-08 | 2009-04-08 | 毕国忠 | Oscillation damping power collector for automobile |
| CN102720786A (en) * | 2012-07-09 | 2012-10-10 | 哈尔滨工业大学 | Multi-degree of freedom electromagnetic damper |
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| CN104455141A (en) * | 2014-11-18 | 2015-03-25 | 南京航空航天大学 | Series magnetic circuit mixed excitation linear electromagnetic damper |
| CN105041936A (en) * | 2015-06-30 | 2015-11-11 | 上海材料研究所 | Installation method of eddy current retarder. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698558A (en) * | 2018-12-03 | 2019-04-30 | 邢益涛 | A kind of wireless energy transform device with noise-reducing design |
| CN109698558B (en) * | 2018-12-03 | 2024-03-29 | 深圳市启天太一科技有限公司 | Wireless energy transmission device with noise reduction design |
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| CN107781338B (en) | 2020-06-09 |
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