CN107222057A - The stator structure for carrying out active control is vibrated to motor stator - Google Patents
The stator structure for carrying out active control is vibrated to motor stator Download PDFInfo
- Publication number
- CN107222057A CN107222057A CN201710344580.XA CN201710344580A CN107222057A CN 107222057 A CN107222057 A CN 107222057A CN 201710344580 A CN201710344580 A CN 201710344580A CN 107222057 A CN107222057 A CN 107222057A
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- Prior art keywords
- motor
- stator
- motor stator
- piezo actuator
- active control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000010355 oscillation Effects 0.000 claims abstract description 12
- 230000003321 amplification Effects 0.000 claims abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of stator structure that progress active control is vibrated to motor stator.Including piezo actuator, vibrating sensor, vibrating controller and power amplifier, fixation is equipped with piezo actuator and vibrating sensor on motor stator surface, the vibration signal of vibrating sensor detection collection motor stator is simultaneously sent to vibrating controller, distribution and vibration signal of the vibrating controller according to piezo actuator on motor stator produce a control signal and exported to power amplifier, the control signal that power amplifier is inputted to vibrating controller carries out power amplification, driving is laid on the piezo actuator on motor stator to change the dynamic characteristics of motor stator, so as to realize that machinery and electric and magnetic oscillation and noise to motor stator carry out active control.The present invention can carry out active control to the machinery and electric and magnetic oscillation of motor stator, be significantly reduced the vibration of motor.
Description
Technical field
It is more particularly to a kind of active control is carried out to motor stator vibration to determine the present invention relates to technical field of motors
Minor structure.
Background technology
All kinds of motors worked with electromagnetic principle, such as induction machine, magneto, switched reluctance machines, are current electricity
Nucleus equipment in energy transfer process, occupies an important position in national economy and daily life.
Vibration and noise that motor is produced in the course of the work, not only influence the performance of motor, and environment are produced dirty
Dye.As people are to electronic product vibration and the concern of noise, the vibration of motor and noise are own through turning into measurement motor product matter
Measure an important technical indicator.Particularly modern electrical machine develops towards the direction of high current, high-magnetodensity, light structuring, motor
Vibration and noise problem it is more prominent.
The vibration of motor and noise are by electric and magnetic oscillation and noise, mechanical oscillation and noise, ventilation vibration and the part of noise three
Composition.Electric and magnetic oscillation and noise are due to the effect of electromagnetic field in motor gas-gap, are produced in stator and rotor on the surface of air gap
With time and the electromagnetic force of spatial variations, stator (including support) and rotor are vibrated, cause surrounding air to pulse and produce
Raw noise.Mechanical oscillation and noise are vibration and noise caused by the imbalance as rotor, bearing, brush etc..Ventilation vibration
It is, by ventilating part, to be vibrated and noise such as fan, the air flow in air channel or as caused by air force with noise.For rotating speed
In not high motor, ventilation vibration and noise are not also protruded typically.Therefore, electric and magnetic oscillation and noise are just main as many motors
Vibration and noise source, study the electric and magnetic oscillation and noise characteristic of motor, be the key for solving motor oscillating and noise.
Because the stator of motor is the key component that motor realizes electromagnetic energy conversion, when motor realizes electromagnetic energy conversion
Electromagnetic force just act directly on the inner or outer surface of stator, so in motor the vibration of stator and noise be motor oscillating and
The core of noise.
At present, to motor stator vibration and the control of noise, typically using some passive control devices, such as using oblique
Groove, increase air gap, lay material of high-damping etc. on stator, these measures may be obtained necessarily under the conditions of some are specific
Effect, but after the rotating speed or working condition of motor change, the vibration of motor stator and noise are still extremely serious,
It is difficult to vibration and the noise problem for fundamentally solving motor.
The content of the invention
Development based on Active Vibration Control and piezo actuator, the present invention proposes a kind of vibrated to motor stator and carried out
The stator structure of active control, is shaken using piezo actuator to the electromagnetism of all kinds of motor stators and machinery that are worked with electromagnetic principle
It is dynamic to carry out active control, active control can be carried out to the vibration of motor stator under the conditions of any, with reduce motor by machinery and
Vibration and noise problem caused by electromagnetism.
The technical scheme is that：
The present invention includes piezo actuator, and fixation is equipped with piezo actuator on motor stator surface, using being laid on electricity
Piezo actuator on machine stator surface changes the dynamic characteristics of motor stator, realize to the machinery and electric and magnetic oscillation of motor and
Noise carries out the purpose of active control.
The piezo actuator of the present invention can be selectively laid in the local surfaces of motor stator or motor is fixed
On all surfaces of son.
Described piezo actuator can for individual layer, double-deck or multilayer piezoelectric ceramic (PZT), piezopolymer (PVDF) or
The grand fibrous composite of person's piezoelectricity (MFC) structure or one or several kinds of combining structures therein.
Also include vibrating sensor, vibrating controller and power amplifier, vibrating sensor is fixed on the table of motor stator
On face and/or lower margin, the signal output part of vibrating sensor is connected with vibrating controller, vibrating controller through power amplifier with
Piezo actuator is connected.
The vibration signal of described vibrating sensor detection collection motor stator is simultaneously sent to vibrating controller, vibration control
Distribution and vibration signal of the device according to piezo actuator on motor stator, with the minimum target of the vibration of stator, according to certain
Control mode produces a control signal and exports the control signal inputted to power amplifier, power amplifier to vibrating controller
Power amplification is carried out, driving is laid on the piezo actuator on motor stator to change the dynamic characteristics of motor stator, so that real
Active control now is carried out to the machinery and electric and magnetic oscillation and noise of motor stator.
Conventional the having of control mode switchs control, PID (proportional-integral-differential) control, optimum control, Self Adaptive Control
Deng.
Described vibrating sensor is acceleration transducer, velocity sensor or strain transducer.
When multiple piezo actuators are connected with power amplifier, using independent mode, series system, parallel way or
One or several kinds of combinations in person's series-parallel system are attached.
Independent mode：Each piezo actuator is connected with power amplifier respectively.
Series system：Power amplifier is connected to after multiple piezo actuators are connected.
Parallel way：Power amplifier will be connected to after the parallel connection of multiple piezo actuators.
Series-parallel system：In parallel again or first parallel connection is connected to power after connecting again after multiple piezo actuators are first connected
Amplifier.
The shape of described piezo actuator is for rectangle, tile shape or annular.Can be according to any direction during laying
Laying, annular refers to the annular around the circumferential complete or part-circular periphery in motor stator surface.
Described piezo actuator is fixed on inner surface or/and the outer surface of motor stator.
The laying direction of piezo actuator described in difference can be with identical, can also be different.
Described piezo actuator can axially, circumferentially or with axis be laid along motor into the direction of unspecified angle.
Described piezo actuator can be symmetrical laying or asymmetric laying.
It can be bonding method or other any feasible modes that described piezo actuator, which fixes paving mode,.
In order to be protected to piezo actuator, other materials, other materials are equipped with piezo actuator outer wrapping
Material specifically refers to the nonmetallic materials such as general metal or plastics, rubber.
Axial, circumferential between the stator outer surface or stator core and housing of motor of the present invention or with axis into a certain
A series of laminar piezo actuator is laid on the direction of angle, using vibrating sensor come measurement motor stator and/or
The vibration of lower margin, the motor that distribution and connection and vibrating sensor of the vibrating controller according to piezo actuator are measured
Vibration signal on stator and/or lower margin, with the minimum target of the vibration of stator, a control is produced according to certain control strategy
Signal output processed is to power amplifier, and the control signal that power amplifier is inputted to vibrating controller carries out power amplification to drive
It is special to change the power of motor stator to be laid on the piezo actuator between the stator outer surface of motor or stator core and housing
Property, so as to reach the purpose that active control is carried out to the machinery and electric and magnetic oscillation and noise of motor.
The beneficial effects of the invention are as follows：
The present invention can carry out active control to the machinery and electric and magnetic oscillation of motor, and the vibration and noise for making motor stator are obtained
To being substantially reduced.
Brief description of the drawings
Fig. 1 is the front view for the motor unitary stator structure for being equipped with piezo actuator.
Fig. 2 is the left view profile for the motor unitary stator structure for being equipped with piezo actuator.
Fig. 3 is the front view for the box-like stator structure of group of motors for being equipped with piezo actuator.
Fig. 4 is the left view profile for the box-like stator structure of group of motors for being equipped with piezo actuator.
Fig. 5 is the connection figure that piezo actuator is individually connected on motor stator.
Fig. 6 is the connection figure after piezo actuator part in parallel on motor stator.
Fig. 7 is the front view of the electric machine structure with the present invention.
Fig. 8 is the left view of the electric machine structure with the present invention.
Fig. 9 is the system architecture diagram of the motor active control with the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
For the difference of motor stator structure, it is illustrated with the embodiment of two typical electric machine structures, but do not limit
In following examples：
Embodiment 1
As shown in Figures 1 and 2, the present embodiment includes piezo actuator 11 and integrally-built stator 12；Described is whole
The stator 12 of body structure is provided with pull box 13 and left and right footing 14a and 14a.
Piezo actuator 11 is strip or tile-shaped, as shown in figure 1, according to axial and circumferential broken-up laying in motor stator
On 12 outer surface, formation is a kind of can to vibrate the stator structure for carrying out active control to motor stator.
Piezo actuator 11 can be individual layer, double-deck or multilayer piezoelectric ceramic (PZT), in the outside of piezo actuator 11 again
General metal is equipped with to protect piezo actuator 11.
Embodiment 2
As shown in figures 3 and 4, the present embodiment includes piezo actuator 11 and the stator 12 of combining structure；Described combination
The stator 12 of structure is made up of stator case 121 and iron core 122, is rigidly connected between housing 121 and stator core 122, stator
It is provided with pull box 13 and left and right footing 14a and 14b.
Piezo actuator 1 is strip or tile-shaped, axially or/and circumferentially segmented is laid on housing 121 and stator iron
Between the heart 122, thus formed it is a kind of can to motor stator vibrate carry out active control stator structure.
Piezo actuator 11 can be piezopolymer (PVDF), repave and be provided with typically in the outside of piezo actuator 11
Plastics nonmetallic materials to piezo actuator 11 to protect.
Other structures outside for motor stator, the structure of motor 1 of specific implementation is as shown in accompanying drawing 7 and Fig. 8, including motor
Rotor 16, the motor stator 12 with piezo actuator 1, front and rear cover 15a and 15b, front and back bearings 17a and 17b and left and right base
Pin 14a and 14b.Rotor 16 is fixed on front and rear cover 15a and 16b by front and back bearings 17a and 17b, front and rear cover 15a
And 15b is fixed on the two ends of the motor stator 12 with piezo actuator, the motor stator 12 with piezo actuator passes through a left side
Right lower margin 14a and 14b is fixed on pedestal.
As shown in Figure 9, vibrating sensor 2 is set on motor 1, and motor 1 is externally provided with vibrating controller 3 and power amplifier
4.Vibrating sensor 2 is fixed on the outer surface of motor stator 12 and/or left and right lower margin 14a and 14b upper, and and vibrating controller
3 are connected；Vibrating controller 3 is connected with power amplifier 4；Power amplifier 4 and the piezo actuator 11 being arranged on stator 12
Several joints be connected.
For the connected mode of piezo actuator on motor stator 11, illustrate as shown in accompanying drawing 5 and Fig. 6：
As shown in figure 5, the both threads of each piezo actuator are formed 2n by the piezo actuator 11 on motor stator respectively
Individual joint a1+b1, a2+b3 ... an+bn, then power amplifier is each individually connected to, wherein n is the number of piezo actuator.
As shown in fig. 6, using the piezo actuator progress that several first are had into identical function in parallel or in series, being formed
2k joint a1+b1, a2+b3 ... am+bm, wherein m are the number of piezo actuator branch road in parallel or in series.It is therein simultaneously
Connection or series connection may each be adjacent or jump.
Or the Hybrid connections mode that independent mode is combined with parallel way is carried out, form 2m joints a1+b1, a2+
b3,…am+bm, wherein m for the number of piezo actuator parallel branch and the number of the piezo actuator that is individually connected and.
Vibration on the measurement motor stator 12 of vibrating sensor 2 and/or left and right lower margin 14a, 14b, and signal is transferred to
Vibrating controller 3；Distribution and connection of the vibrating controller 3 according to piezo actuator and measured based on vibrating sensor 2
The vibration characteristics of the motor stator arrived, with the minimum target of the vibration of motor, exports a control according to switch control mode and believes
Number, input to power amplifier 4；The control signal that the power amplifier 4 is inputted to controller carries out power amplification, Ran Houli
Change motor stator with the piezo actuator 11 being laid between the surface of motor stator 12 or housing 121 and stator core 122
Dynamic characteristics, with reach to motor stator 12 vibration carry out active control purpose.
Claims (9)
1. a kind of vibrate the stator structure for carrying out active control to motor stator, it is characterised in that：Motor is laid on including fixation
Piezo actuator on stator surface, changes the dynamic of motor stator using the piezo actuator on motor stator surface is laid on
Force characteristic, realizes the purpose that active control is carried out to the machinery and electric and magnetic oscillation and noise of motor.
2. a kind of stator structure that progress active control is vibrated to motor stator according to claim 1, it is characterised in that：
Also include vibrating sensor (2), vibrating controller (3) and power amplifier (4), vibrating sensor (2) is fixed on motor stator
Surface and/or lower margin on, the signal output part of vibrating sensor (2) is connected with vibrating controller (3), vibrating controller (3)
It is connected through power amplifier (4) with piezo actuator (11).
3. a kind of stator structure that progress active control is vibrated to motor stator according to claim 2, it is characterised in that：
The vibration signal of described vibrating sensor (2) detection collection motor stator is simultaneously sent to vibrating controller (3), vibrating controller
(3) control is produced according to the vibration signal of the distribution of piezo actuator on motor stator (11) and vibrating sensor (2) to believe
Number export and to give power amplifier (4), the control signal that power amplifier (4) is inputted to vibrating controller (3) carries out power amplification,
Driving is laid on the piezo actuator on motor stator to change the dynamic characteristics of motor stator, so as to realize the machinery to motor
And electric and magnetic oscillation and noise carry out active control.
4. a kind of stator structure that progress active control is vibrated to motor stator according to claim 2, it is characterised in that：
When multiple piezo actuators (11) are connected with power amplifier (4), using independent mode, series system, parallel way or
One or several kinds of combinations in person's series-parallel system are attached.
5. a kind of stator structure that progress active control is vibrated to motor stator according to claim 4, it is characterised in that：
The shape of described piezo actuator (11) is for rectangle, tile shape or annular.
6. a kind of stator structure that progress active control is vibrated to motor stator according to claim 1, it is characterised in that：
Described piezo actuator (11) is fixed on inner surface or/and the outer surface of motor stator.
7. a kind of stator structure that progress active control is vibrated to motor stator according to claim 1, it is characterised in that：
Each piezo actuator (11) axially, circumferentially or with axis is laid along motor into the direction of unspecified angle.
8. a kind of electric machine structure, it is characterised in that：Motor is provided with the stator structure described in claim 1.
9. a kind of motor active control system, it is characterised in that：Motor is provided with the stator structure described in claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344580.XA CN107222057B (en) | 2017-05-16 | 2017-05-16 | Stator structure for actively controlling motor stator vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344580.XA CN107222057B (en) | 2017-05-16 | 2017-05-16 | Stator structure for actively controlling motor stator vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107222057A true CN107222057A (en) | 2017-09-29 |
| CN107222057B CN107222057B (en) | 2023-09-08 |
Family
ID=59944880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710344580.XA Active CN107222057B (en) | 2017-05-16 | 2017-05-16 | Stator structure for actively controlling motor stator vibration |
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| Country | Link |
|---|---|
| CN (1) | CN107222057B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206615A (en) * | 2018-03-26 | 2018-06-26 | 上海特波电机有限公司 | Asynchronous machine with vibration damping thermometric |
| CN112855488A (en) * | 2019-11-12 | 2021-05-28 | 宁波方太厨具有限公司 | Booster pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166544A (en) * | 1984-09-06 | 1986-04-05 | Toshiba Corp | Vibration and noise suppressor |
| KR19990021648A (en) * | 1997-08-30 | 1999-03-25 | 정몽규 | Active Torque Rod for Vehicle Vibration Noise Reduction |
| US20040068349A1 (en) * | 2002-10-07 | 2004-04-08 | Huageng Luo | Method and apparatus for rotary machine vibration control |
| DE102004010012B3 (en) * | 2004-03-01 | 2005-07-28 | Siemens Ag | Noise minimizing, especially of fan unit integrated in housing, involves controlling actuator(s) interacting with housing with reference sensor signal derived from first harmonic of electric motor generated oscillation, fan unit oscillation |
| CN102072276A (en) * | 2010-12-30 | 2011-05-25 | 上海交通大学 | Electromagnetic active control device for longitudinal vibration of marine shafting |
| CN106545574A (en) * | 2016-10-27 | 2017-03-29 | 上海交通大学 | A kind of oscillation crosswise control device of cardan shaft |
-
2017
- 2017-05-16 CN CN201710344580.XA patent/CN107222057B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166544A (en) * | 1984-09-06 | 1986-04-05 | Toshiba Corp | Vibration and noise suppressor |
| KR19990021648A (en) * | 1997-08-30 | 1999-03-25 | 정몽규 | Active Torque Rod for Vehicle Vibration Noise Reduction |
| US20040068349A1 (en) * | 2002-10-07 | 2004-04-08 | Huageng Luo | Method and apparatus for rotary machine vibration control |
| DE102004010012B3 (en) * | 2004-03-01 | 2005-07-28 | Siemens Ag | Noise minimizing, especially of fan unit integrated in housing, involves controlling actuator(s) interacting with housing with reference sensor signal derived from first harmonic of electric motor generated oscillation, fan unit oscillation |
| CN102072276A (en) * | 2010-12-30 | 2011-05-25 | 上海交通大学 | Electromagnetic active control device for longitudinal vibration of marine shafting |
| CN106545574A (en) * | 2016-10-27 | 2017-03-29 | 上海交通大学 | A kind of oscillation crosswise control device of cardan shaft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206615A (en) * | 2018-03-26 | 2018-06-26 | 上海特波电机有限公司 | Asynchronous machine with vibration damping thermometric |
| CN112855488A (en) * | 2019-11-12 | 2021-05-28 | 宁波方太厨具有限公司 | Booster pump |
| CN112855488B (en) * | 2019-11-12 | 2022-04-19 | 宁波方太厨具有限公司 | Booster pump |
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| Publication number | Publication date |
|---|---|
| CN107222057B (en) | 2023-09-08 |
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