CN106934162A - A kind of noise of motor optimization method and device based on Magnetic Circuit Method Yu FInite Element - Google Patents
A kind of noise of motor optimization method and device based on Magnetic Circuit Method Yu FInite Element Download PDFInfo
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- CN106934162A CN106934162A CN201710154495.7A CN201710154495A CN106934162A CN 106934162 A CN106934162 A CN 106934162A CN 201710154495 A CN201710154495 A CN 201710154495A CN 106934162 A CN106934162 A CN 106934162A
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Abstract
The embodiment of the invention discloses a kind of noise of motor optimization method and device based on Magnetic Circuit Method Yu FInite Element, certainty of measurement and measurement cost for solving noise in the prior art to permagnetic synchronous motor is higher, and be difficult in measurement process be adjusted the parameter of permagnetic synchronous motor, to reach the technical problem of the purpose of optimization noise of motor.Present invention method includes：By magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the Preliminary design model of motor；The parameter of the cogging torque of motor is influenceed in Preliminary design model according to finite element method analysis motor, and chooses the parameter values of the cogging torque that can weaken motor；The solution of radial electromagnetic force ripple is carried out to motor, the radial direction Reeb suffered by the stator teeth of motor is obtained, and the solving result of acquisition is carried out into harmonic responding analysis；The vibration acceleration output that harmonic responding analysis are obtained carries out Analysis of The Acoustic Fields to the stator casing of motor, obtains the noise profile situation around motor.
Description
Technical field
The present invention relates to permasyn morot field, more particularly to a kind of made an uproar with the motor of FInite Element based on Magnetic Circuit Method
Sound optimization method and device.
Background technology
Energy-saving and emission-reduction are the trend of global evolution, and textile industry is the rich and influential family of energy resource consumption, and its run time 24 is small
When, the motor cost of work accounts for the second largest expenditure cost of textile industry, uses high-efficiency energy-saving permanent magnet motor (cored)
Belong to a kind of means, but there is cogging torque in it.And the noise produced by the motor of weaving is also that can not be ignored
Problem, when the noise of motor is excessive, not only influence its normal operation, or even the thorax of sweeping of motor occur, and influence work
Make the operation of personnel.The noise of motor is mainly derived from electromagnetic noise, because motor gas-gap space magnetic field is a power for rotation
Ripple, its radial electromagnetic force ripple can make rotor that radial deformation and periodically vibrations occur, and produce electromagnetic noise.When its stator
When intrinsic frequency is proximate to it, resonance will be caused, increase noise and vibration.Have to machine and on-site personnel serious
Bad influence.
At present, permagnetic synchronous motor measurement noise has the following aspects：
(1) lead screen method is that the sealing acoustic hood made with stereotype is covered on machine, and each radiation exposed is measured successively
Face, obtains sound radiation pressure level everywhere on radiating surface.The method for labyrinth internal combustion engine, it is difficult to accomplish to be completely covered,
So as to influence certainty of measurement；And the acoustic enviroment to testing has certain requirement, testing cost is higher.
(2) near field measurement method, is that the noise of the radiating surface that will be measured is drawn with conduit, in pipe also known as sound passage method
The road other end sets microphone, and separates other noises with dividing plate and measure.This method precision is not high, and range of application is not
Extensively.
(3) surface vibration method is to vibrate to try to achieve radiated noise by measurement surface, it is not necessary to special acoustic enviroment.But
For different objects, the position and points for determining measuring point will determine by experience.
(4) noise model of permagnetic synchronous motor is measured based on Indirect Boundary Element Technique：With LMS
The large-scale finite element acoustics software for calculation of Virtual.LabAcoustics sets up motor sound-field model, using actual measurement motor case table
Face normal vibration acceleration estimates motor internal radiated noise sound field.The normal direction of the motor case surface vibration that will be measured in experiment
The boundary condition that acceleration is calculated directly as sound field, acoustics is calculated and is based on Helmholtz integral formulas, is a kind of theoretical calculation
With the method that experiment measurement is combined.But because measurement is difficult and error, this model is not very accurate.
Therefore, the certainty of measurement and measurement cost in the prior art to the noise of permagnetic synchronous motor are higher, and are difficult to
Parameter to permagnetic synchronous motor in measurement process is adjusted, to reach the purpose of optimization noise of motor.
The content of the invention
A kind of noise of motor optimization method and device based on Magnetic Circuit Method Yu FInite Element is the embodiment of the invention provides, is solved
The certainty of measurement and measurement cost of the noise determined in the prior art to permagnetic synchronous motor are higher, and are difficult in measurement process
In the parameter of permagnetic synchronous motor is adjusted, to reach the technical problem of the purpose of optimization noise of motor.
A kind of noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element provided in an embodiment of the present invention, including：
By magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the Preliminary design model of motor；
The parameter of the cogging torque of motor is influenceed in Preliminary design model according to finite element method analysis motor, and selection can
Weaken the parameter values of the cogging torque of motor；
The solution of radial electromagnetic force ripple is carried out to motor according to parameter values, the footpath suffered by the stator teeth of motor is obtained
To Reeb, and the solving result of acquisition is carried out into harmonic responding analysis；
According to the vibration acceleration that harmonic responding analysis are obtained, by vibration acceleration output to the stator casing of motor, carry out
Analysis of The Acoustic Fields, obtains the noise profile situation around motor.
Alternatively, by magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the Preliminary design model of motor
Including：
According to the structural parameters of motor, by magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate motor
Preliminary design model；
The stator teeth for marking off motor and the air vent for drawing motor, and air gap region to motor carries out multilayer
Mesh generation.
Alternatively, the parameter of the cogging torque of motor is influenceed in the Preliminary design model according to finite element method analysis motor,
And choose the parameter values of cogging torque that can weaken motor and include：
Magnetic pole pole embrace and magnetic pole eccentricity in rudimentary model according to FInite Element to motor are swept away from parametrization is carried out
Retouch, magnetic pole pole embrace and magnetic pole eccentricity away from range of variables in choose the magnetic pole polar arc system of the cogging torque that can weaken motor
Number and magnetic pole eccentricity away from.
Alternatively, the solution of radial electromagnetic force ripple is carried out to motor according to parameter values, the stator teeth institute of motor is obtained
The radial direction Reeb being subject to, and the solving result of acquisition is carried out into harmonic responding analysis include：
To have chosen the motor of the magnetic pole pole embrace and magnetic pole eccentricity of the cogging torque that can weaken motor after according to wheat
Ke Siwei stress tensors method carries out the solution of radial electromagnetic force ripple, and the solving result of acquisition is input into drawn motor
The stator teeth section of threedimensional model, the air vent to drawn motor applies boundary condition, carries out harmonic responding analysis.
Alternatively, the vibration velocity for being obtained according to harmonic responding analysis is exported and carries out Analysis of The Acoustic Fields, obtains the noise of motor
Distribution situation includes：
According to the vibration acceleration that harmonic responding analysis are obtained, by the stator casing of vibration acceleration output to motor and by electricity
The stator casing of machine carries out Analysis of The Acoustic Fields as noise source, obtains the noise profile result around motor.
A kind of noise of motor based on Magnetic Circuit Method and FInite Element provided in an embodiment of the present invention optimizes device, including：
Generation module, for by magnetic path design, the magnetic field of motor being reduced into magnetic circuit, and generating the preliminary of motor set
Meter model；
First analysis module, the teeth groove for influenceing motor in the Preliminary design model according to finite element method analysis motor turns
The parameter of square, and choose the parameter values of the cogging torque that can weaken motor；
Module is solved, the stator of motor is obtained in the solution for carrying out radial electromagnetic force ripple to motor according to parameter values
Radial direction Reeb suffered by teeth portion, and the solving result of acquisition is carried out into harmonic responding analysis；
Second analysis module, for the vibration acceleration obtained according to harmonic responding analysis, by vibration acceleration output to electricity
The stator casing of machine, carries out Analysis of The Acoustic Fields, obtains the noise profile situation around motor.
Alternatively, generation module includes：
Generation unit, for the structural parameters according to motor, by magnetic path design, magnetic is reduced to by the magnetic field of motor
Road, and generate the Preliminary design model of motor；
Division unit, for marking off the stator teeth of motor and drawing the air vent of motor, and to the air gap of motor
Region carries out the mesh generation of multilayer.
Alternatively, the first analysis module includes：
Scanning element, for the magnetic pole pole embrace and magnetic pole eccentricity in the rudimentary model according to FInite Element to motor away from
Carry out parametrization scanning, magnetic pole pole embrace and magnetic pole eccentricity away from range of variables in choose the cogging torque that can weaken motor
Magnetic pole pole embrace and magnetic pole eccentricity away from.
Alternatively, solving module includes：
Unit is solved, for the magnetic pole pole embrace and magnetic pole eccentricity to have chosen the cogging torque that can weaken motor away from rear
Motor the solution of radial electromagnetic force ripple is carried out according to Maxwell stress tensor method, and the solving result of acquisition be input to paint
The stator teeth section of the threedimensional model of the motor for making, the air vent to drawn motor applies boundary condition, carries out humorous
Response analysis.
Alternatively, the second analysis module includes：
Analytic unit, for the vibration acceleration obtained according to harmonic responding analysis, motor is arrived by vibration acceleration output
Stator casing simultaneously carries out Analysis of The Acoustic Fields using the stator casing of motor as noise source, obtains the noise profile result around motor.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of noise of motor optimization method and device based on Magnetic Circuit Method Yu FInite Element is the embodiment of the invention provides, is wrapped
Include：By magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the Preliminary design model of motor；According to finite element
The parameter of the cogging torque of motor is influenceed in the Preliminary design model of method analysis motor, and chooses the cogging torque that can weaken motor
Parameter values；The solution of radial electromagnetic force ripple is carried out to motor according to parameter values, is obtained suffered by the stator teeth of motor
Radial direction Reeb, and the solving result of acquisition is carried out into harmonic responding analysis；According to the vibration acceleration that harmonic responding analysis are obtained, will
Vibration acceleration output carries out Analysis of The Acoustic Fields to the stator casing of motor, obtains the noise profile situation around motor, the present invention
Embodiment by first using Magnetic Circuit Method to design of electrical motor, then with the ginseng of the method parameter analyzing influence cogging torque of finite element
Number, chooses the numerical value for significantly weakening cogging torque as far as possible, then carry out permanent-magnetic synchronous motor stator teeth portion radial electromagnetic force ripple
Calculating, the result output that will be obtained carries out the harmonic responding analysis of configuration aspects, the vibration acceleration for finally obtaining Harmony response,
Analysis of The Acoustic Fields module is exported, the emulation of permanent magnet motor stator shell surrounding noise profile is carried out.Whole process is by electromagnetism-knot
Structure-sound field is coupled, there is provided a kind of while the cogging torque of motor is optimized, and reduces the measurement of motor electromagnetic noise
Method, the certainty of measurement and measurement cost for solving noise in the prior art to permagnetic synchronous motor is higher, and is difficult to
Parameter in measurement process to permagnetic synchronous motor is adjusted, to reach the technical problem of the purpose of optimization noise of motor.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is provided in an embodiment of the present invention a kind of based on Magnetic Circuit Method and the noise of motor optimization method of FInite Element one
The schematic flow sheet of individual embodiment；
Fig. 2 is provided in an embodiment of the present invention a kind of another with the noise of motor optimization method of FInite Element based on Magnetic Circuit Method
The schematic flow sheet of one embodiment；
Fig. 3 is the schematic diagram of the 2d models of generation motor provided in an embodiment of the present invention；
Fig. 4 is the motor model schematic diagram after division motor stator teeth portion provided in an embodiment of the present invention；
Fig. 5 sets corresponding variable and its corresponding value signal for provided in an embodiment of the present invention in Rmxprt modules
Figure；
Fig. 6 is the working interface schematic diagram of key modeling generation motor 2d areal models provided in an embodiment of the present invention；
Fig. 7 is that the optimization option addition parameter in 2d working interfaces provided in an embodiment of the present invention is analyzed schematic diagram；
Fig. 8 is the interface schematic diagram of parametrization scanning provided in an embodiment of the present invention；
The assembled scheme schematic diagram that Fig. 9 is brought by parameterized variables provided in an embodiment of the present invention；
Figure 10 is that motor pole pole embrace provided in an embodiment of the present invention scans schematic diagram；
Figure 11 is that motor pole eccentric throw provided in an embodiment of the present invention scans schematic diagram；
Figure 12 is the motor two dimensional model that Ansys maxwell provided in an embodiment of the present invention set up；
Figure 13 is the motor threedimensional model that solidwork provided in an embodiment of the present invention sets up；
Figure 14 is the motor case noise cloud atlas before motor cogging torque optimization provided in an embodiment of the present invention；
Figure 15 is the motor case noise cloud atlas after motor cogging torque optimization provided in an embodiment of the present invention；
Figure 16 is that a kind of noise of motor based on Magnetic Circuit Method and FInite Element provided in an embodiment of the present invention optimizes device
Structural representation.
Specific embodiment
A kind of noise of motor optimization method and device based on Magnetic Circuit Method Yu FInite Element is the embodiment of the invention provides, is used
It is higher in the certainty of measurement and measurement cost for solving noise in the prior art to permagnetic synchronous motor, and be difficult to measuring
Parameter in journey to permagnetic synchronous motor is adjusted, to reach the technical problem of the purpose of optimization noise of motor.
To enable that goal of the invention of the invention, feature, advantage are more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described, it is clear that disclosed below to the technical scheme in the embodiment of the present invention
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Refer to Fig. 1, a kind of noise of motor optimization side based on Magnetic Circuit Method Yu FInite Element provided in an embodiment of the present invention
Method includes：
101st, by magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the Preliminary design model of motor.
102nd, the parameter of the cogging torque of motor is influenceed in the Preliminary design model according to finite element method analysis motor, and is selected
Take the parameter values of the cogging torque that can weaken motor；
By the derivation of equation, from motor-field and the angle of energy, obtain influenceing the relevant parameter of motor cogging torque, can
To obtain the expression formula of cogging torque, formula specific as follows from the angle of magnetic field energy：
Wherein, LaIt is the axial length of armature core；R1、R2Respectively armature outer radius, stator yoke inside radius；N is to makeIt is the integer of integer；Z, p are respectively number of slots, number of pole-pairs.
Wherein, the definition of cogging torque is：Permanent magnet and stator core when cogging torque is magneto winding no power
Interphase interaction produce torque.And its torque formed mainly by permanent magnet and armature tooth (i.e. motor stator teeth portion) it
What the tangential component of Interaction Force caused, therefore suitable air gap flux density value can be chosen by weakening cogging torque, and then
Reduce the radial electromagnetic force of motor, mitigate the electromagnetic noise influence in magneto.
After the rudimentary model for obtaining motor, can be according to shadow in the rudimentary model of FInite Element Parametric Analysis motor
The parameter (being analyzed to the parameter in the expression formula in above-mentioned cogging torque) of the cogging torque of motor is rung, and selection can
Weaken the parameter values of the cogging torque of motor.
103rd, the solution of radial electromagnetic force ripple is carried out to motor according to parameter values, is obtained suffered by the stator teeth of motor
Radial direction Reeb, and the solving result of acquisition is carried out into harmonic responding analysis；
After the parameter values for choosing the cogging torque that can weaken motor, according to parameter values, motor is carried out radially
The solution of electromagnetic force wave, and the solving result that will be obtained, and the solving result of acquisition is input to drawn motor three-dimensional mould
The stator teeth section of type, then to the air vent applying boundary condition of drawn motor, carries out harmonic responding analysis.
104th, the vibration acceleration obtained according to harmonic responding analysis, by the stator casing of vibration acceleration output to motor,
Analysis of The Acoustic Fields is carried out, the noise profile situation around motor is obtained.
Finally, motor stator casing is arrived in the vibration acceleration output for being obtained according to harmonic responding analysis, and carries out Analysis of The Acoustic Fields,
Obtain the ambient noise distribution situation of motor.
It is more than to a kind of noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element provided in an embodiment of the present invention
One embodiment detailed description, below by a kind of electricity based on Magnetic Circuit Method Yu FInite Element provided in an embodiment of the present invention
Another embodiment of machine noise optimization method is described in detail.
Refer to Fig. 2, a kind of noise of motor optimization side based on Magnetic Circuit Method Yu FInite Element provided in an embodiment of the present invention
Another embodiment of method includes：
201st, according to the structural parameters of motor, by magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate electricity
The Preliminary design model of machine；
First, according to all structural parameters of motor, i.e. internal-and external diameter, winding wire diameter, winding, size etc., by Ansys
Rmxprt carries out the rapid computations of magnetic circuit, key generation 2d models, as shown in figure 3, being the 2d models for generating motor to motor
Schematic diagram.
202nd, the stator teeth for marking off motor and the air vent for drawing motor, and the air gap region of motor is carried out many
The mesh generation of layer.
After the rudimentary model of generation motor, the stator teeth of motor and the air vent of drafting motor are marked off.Such as
Shown in Fig. 4, to divide the motor model schematic diagram after motor stator teeth portion.
203rd, the magnetic pole pole embrace and magnetic pole eccentricity in the rudimentary model according to FInite Element to motor are away from entering line parameter
Change scanning, magnetic pole pole embrace and magnetic pole eccentricity away from range of variables in choose the magnetic pole pole of the cogging torque that can weaken motor
Arc coefficient and magnetic pole eccentricity away from；
Magnetic pole pole embrace and magnetic pole eccentricity in rudimentary model further according to FInite Element to motor are away from parameterizing
Scanning, magnetic pole pole embrace and magnetic pole eccentricity away from range of variables in choose can the maximum cogging torque for weakening motor magnetic pole
Pole embrace and magnetic pole eccentricity away from.Wherein, because air gap is the basis for realizing energy converting between mechanical, and positioned at motor stator tooth with
Between permanent magnet.The generation of cogging torque and radial electromagnetic force ripple is all closely related with air gap.To improve cogging torque below
And the computational accuracy of motor radial electromagnetic force to it, it is necessary to carry out multi-layer net subdivision, although when may improve operand
Between, but can guarantee that calculating solution is accurate reliable.Therefore, the working interface in Maxwell2d carries out the emulation point of finite element method
Analysis, its key step is as follows：
(1) when Rmxprt modules are calculated using magnetic circuit, magnetic pole pole embrace, magnetic pole eccentricity are set to accordingly away from numerical value
Variable, such as d, position.As shown in figure 5, being to set corresponding variable and its corresponding value in Rmxprt modules
Schematic diagram.
(2) from after the keys of Rmxprt mono- generation 2d areal models, the operation interface of 2d models will form the boundary just like Fig. 6
Face.The parametric variable for setting before pointed by the motor model and lower left corner arrow of generation can be seen from image.
As shown in fig. 6, being the working interface schematic diagram of key modeling generation motor 2d areal models.
(3) Maxwell2ddesign5 above is launched, it can be seen that have following border setting, excitation, parameter, grid to cut open
Divide, solve setting, optimization, the option of field domain observation.According to the sequence number step in Fig. 7, right click optimal design-aside, addition parameterize into
Row analysis.As shown in fig. 7, be 2d working interfaces optimization option addition parameter be analyzed schematic diagram.
(4) linear step-length is selected, suitable initial value, end value and spacing is then set, can be obtained as shown in Figure 8
Parametrization scanning interface schematic diagram.
(5) and then carry out carrying out finite element simulation to the assembled scheme that these parameters are formed, obtain parameter asynchronous imitative
True result.Therefore, the simulation result effect obtained by different assembled schemes is formed according to these different parameters, you can selection
The parameter combination of the cogging torque for weakening motor can be maximized.As shown in figure 9, the assembled scheme brought by parameterized variables
Schematic diagram.
204th, to have chosen the motor root of the magnetic pole pole embrace and magnetic pole eccentricity of the cogging torque that can weaken motor after
The solution of radial electromagnetic force ripple is carried out according to Maxwell stress tensor method, and the solving result of acquisition is input to drawn electricity
The stator teeth section of the threedimensional model of machine, the air vent to drawn motor applies boundary condition, carries out harmonic responding analysis；
After it have chosen the parameter for weakening cogging torque that can maximize, the winding applying phase then to structural model is each
From 120 ° of balanced three-phase current of difference, to armature external diameter addition dirichlet series boundary condition (will its to define magnetic field strong
Spend 0), to emulate preferable magnetic insulation, carry out Transient.The air gap border in the middle of stator and permanent magnet is taken, according to Max
Wei stress tensor method, obtains the radial electromagnetic force ripple of its transient state.FFT is carried out using its frequency domain decomposition device for carrying obtain footpath
To the frequency domain distribution of electromagnetic force wave, belong to electromagnetism harmonic wave, and solve the amplitude and corresponding number of times of harmonic wave, it is right to be left as
The analysis on its rationality of design before and after should optimizing.Then radial electromagnetic force ripple is imported into and is drawn using Maxwell3d as excitation
Three-dimensional machine winding stator teeth sectional position, and be analyzed in ANSYS workbench Harmony response modules, to motor
Air vent applies edge-restraint condition, and the medium transmitted as noise with armature outer surface, obtains vibration displacement and acceleration
Degree.
205th, the vibration acceleration obtained according to harmonic responding analysis, by the stator casing of vibration acceleration output to motor simultaneously
Analysis of The Acoustic Fields is carried out using the stator casing of motor as noise source, the noise profile result around motor is obtained.
Finally, the vibration acceleration for harmonic responding analysis being obtained imports the module of workbench noise analyses
Acoustics, by taking the casing outside its easy motor stator as an example, is set to noise source, and footpath is applied to its outermost
To noise margin condition, you can obtain the noise profile cloud atlas around motor housing.
For ease of understanding, below by using the motor of a weaving as specific example, emulated.As shown in table 1, it is
The parameter list of motor Preliminary design.
The parameter of the motor Preliminary design of table 1
Figure 10 and Figure 11 is referred to, is that motor pole pole embrace scanning schematic diagram and the scanning of motor pole eccentric throw are illustrated
Figure.
Figure 12 and Figure 13 is referred to, is the motor two dimensional model that Ansys maxwell set up and the electricity that solidwork sets up
Machine threedimensional model.
Figure 14 and Figure 15 is referred to, is motor case noise cloud atlas and motor cogging torque before the optimization of motor cogging torque
Motor case noise cloud atlas after optimization.
After being optimized to motor and weakening cogging torque, noise vs are as shown in table 2.
The noise of motor of table 2 is contrasted
It is more than to a kind of noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element provided in an embodiment of the present invention
Another embodiment detailed description, below by provided in an embodiment of the present invention a kind of based on Magnetic Circuit Method and FInite Element
Noise of motor optimization device is described in detail.
Figure 16 is referred to, a kind of noise of motor based on Magnetic Circuit Method and FInite Element provided in an embodiment of the present invention optimizes dress
Put including：
Generation module 301, for by magnetic path design, the magnetic field of motor being reduced into magnetic circuit, and generate the first of motor
Step designs a model；Generation module 301 includes：
Generation unit 3011, for the structural parameters according to motor, by magnetic path design, the magnetic field of motor is reduced to
Magnetic circuit, and generate the Preliminary design model of motor；
Division unit 3012, for marking off the stator teeth of motor and drawing the air vent of motor, and to motor
Air gap region carries out the mesh generation of multilayer.
First analysis module 302, the tooth for influenceing motor in the Preliminary design model according to finite element method analysis motor
The parameter of groove torque, and choose the parameter values of the cogging torque that can weaken motor；First analysis module 302 includes：
Scanning element 3021, it is inclined for the magnetic pole pole embrace and magnetic pole in the rudimentary model according to FInite Element to motor
The heart away from carrying out parametrization scanning, magnetic pole pole embrace and magnetic pole eccentricity away from range of variables in choose the teeth groove that can weaken motor
The magnetic pole pole embrace and magnetic pole eccentricity of torque away from.
Module 303 is solved, determining for motor is obtained in the solution for carrying out radial electromagnetic force ripple to motor according to parameter values
Radial direction Reeb suffered by sub- teeth portion, and the solving result of acquisition is carried out into harmonic responding analysis；Solving module 303 includes：
Unit 3031 is solved, for magnetic pole pole embrace and magnetic pole eccentricity to have chosen the cogging torque that can weaken motor
Motor after carries out the solution of radial electromagnetic force ripple, and the solving result input that will be obtained according to Maxwell stress tensor method
To the stator teeth section of the threedimensional model of drawn motor, to the air vent applying boundary condition of drawn motor, enter
Row harmonic responding analysis.
Second analysis module 304, for the vibration acceleration obtained according to harmonic responding analysis, vibration acceleration output is arrived
The stator casing of motor, carries out Analysis of The Acoustic Fields, obtains the noise profile situation around motor；Second analysis module 304 includes：
Analytic unit 3041, for the vibration acceleration output obtained according to harmonic responding analysis and by the stator casing of motor
Analysis of The Acoustic Fields is carried out as noise source, the noise profile result around motor is obtained.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component
Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to preceding
Embodiment is stated to be described in detail the present invention, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element, it is characterised in that including：
By magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the Preliminary design model of the motor；
The parameter of the cogging torque of the motor is influenceed in the Preliminary design model of motor according to finite element method analysis, and is selected
Take the parameter values of the cogging torque that can weaken the motor；
The solution of radial electromagnetic force ripple is carried out to the motor according to the parameter values, the stator teeth institute of the motor is obtained
The radial direction Reeb being subject to, and the solving result of acquisition is carried out into harmonic responding analysis；
According to the vibration acceleration that harmonic responding analysis are obtained, by the stator casing of vibration acceleration output to the motor,
Analysis of The Acoustic Fields is carried out, the noise profile situation around motor is obtained.
2. the noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element according to claim 1, it is characterised in that institute
State by magnetic path design, the magnetic field of motor is reduced into magnetic circuit, and generates the Preliminary design model of the motor to include：
According to the structural parameters of motor, by magnetic path design, the magnetic field of motor is reduced to magnetic circuit, and generate the motor
Preliminary design model；
The stator teeth for marking off the motor and the air vent for drawing the motor, and air gap region to the motor enters
The mesh generation of row multilayer.
3. the noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element according to claim 2, it is characterised in that institute
The parameter of the cogging torque of the motor is influenceed in the Preliminary design model for stating the motor according to finite element method analysis, and is chosen
The parameter values that the cogging torque of the motor can be weakened include：
Magnetic pole pole embrace in rudimentary model and magnetic pole eccentricity according to FInite Element to the motor are swept away from parametrization is carried out
Retouch, the magnetic pole pole embrace and the magnetic pole eccentricity away from range of variables in choose the cogging torque that can weaken the motor
Magnetic pole pole embrace and magnetic pole eccentricity away from.
4. the noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element according to claim 3, it is characterised in that institute
The solution for carrying out radial electromagnetic force ripple to the motor according to the parameter values is stated, is obtained suffered by the stator teeth of the motor
The radial direction Reeb arrived, and the solving result of acquisition is carried out into harmonic responding analysis include：
To have chosen the motor root of the magnetic pole pole embrace and magnetic pole eccentricity of the cogging torque that can weaken the motor after
The solution of radial electromagnetic force ripple is carried out according to Maxwell stress tensor method, and the solving result of acquisition is input to drawn institute
The stator teeth section of the threedimensional model of motor is stated, the air vent to the drawn motor applies boundary condition, carries out humorous
Response analysis.
5. the noise of motor optimization method based on Magnetic Circuit Method Yu FInite Element according to claim 4, it is characterised in that institute
The vibration acceleration obtained according to harmonic responding analysis is stated, by vibration acceleration output to the stator casing of the motor, is entered
Row Analysis of The Acoustic Fields, the noise profile situation obtained around motor includes：
According to the vibration acceleration that harmonic responding analysis are obtained, the stator casing that vibration acceleration output is arrived into the motor is simultaneously
Analysis of The Acoustic Fields is carried out using the stator casing of the motor as noise source, the noise profile result around the motor is obtained.
6. a kind of noise of motor based on Magnetic Circuit Method and FInite Element optimizes device, it is characterised in that including：
Generation module, for by magnetic path design, the magnetic field of motor being reduced into magnetic circuit, and generating the preliminary of the motor set
Meter model；
First analysis module, the tooth for influenceing the motor in the Preliminary design model of the motor according to finite element method analysis
The parameter of groove torque, and choose the parameter values of the cogging torque that can weaken the motor；
Module is solved, the electricity is obtained in the solution for carrying out radial electromagnetic force ripple to the motor according to the parameter values
Radial direction Reeb suffered by the stator teeth of machine, and the solving result of acquisition is carried out into harmonic responding analysis；
Second analysis module, for the vibration acceleration obtained according to harmonic responding analysis, by vibration acceleration output to institute
The stator casing of motor is stated, Analysis of The Acoustic Fields is carried out, the noise profile situation around motor is obtained.
7. the noise of motor based on Magnetic Circuit Method and FInite Element according to claim 6 optimizes device, it is characterised in that institute
Stating generation module includes：
Generation unit, for the structural parameters according to motor, by magnetic path design, magnetic circuit is reduced to by the magnetic field of motor, and
Generate the Preliminary design model of the motor；
Division unit, for marking off the stator teeth of the motor and drawing the air vent of the motor, and to the electricity
The air gap region of machine carries out the mesh generation of multilayer.
8. the noise of motor based on Magnetic Circuit Method and FInite Element according to claim 7 optimizes device, it is characterised in that institute
Stating the first analysis module includes：
Scanning element, for the magnetic pole pole embrace and magnetic pole eccentricity in the rudimentary model according to FInite Element to the motor away from
Carry out parametrization scanning, the magnetic pole pole embrace and the magnetic pole eccentricity away from range of variables in choose and can weaken the electricity
The magnetic pole pole embrace and magnetic pole eccentricity of the cogging torque of machine away from.
9. the noise of motor based on Magnetic Circuit Method and FInite Element according to claim 8 optimizes device, it is characterised in that institute
Stating solution module includes：
Unit is solved, for the magnetic pole pole embrace and magnetic pole eccentricity to have chosen the cogging torque that can weaken the motor away from rear
The motor solution of radial electromagnetic force ripple, and the solving result input that will be obtained are carried out according to Maxwell stress tensor method
To the stator teeth section of the threedimensional model of the drawn motor, to the air vent applying border of the drawn motor
Condition, carries out harmonic responding analysis.
10. the noise of motor based on Magnetic Circuit Method and FInite Element according to claim 9 optimizes device, it is characterised in that
Second analysis module includes：
Analytic unit, for the vibration acceleration obtained according to harmonic responding analysis, by vibration acceleration output to the electricity
The stator casing of machine simultaneously carries out Analysis of The Acoustic Fields using the stator casing of the motor as noise source, obtains making an uproar around the motor
Sound distribution results.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539935A (en) * | 2018-05-14 | 2018-09-14 | 上海电力学院 | Electric vehicle permanent magnet synchronous motor wide-range-timing vibration noise source analysis method |
| CN109115328A (en) * | 2018-07-15 | 2019-01-01 | 东北石油大学 | The automatic monitoring analyzer of feeding oil pump electromagnetic noise |
| CN109214125A (en) * | 2018-10-22 | 2019-01-15 | 华中科技大学 | A kind of calculation method of motor electromagnetic vibration noise |
| CN110224642A (en) * | 2019-04-25 | 2019-09-10 | 上海电机系统节能工程技术研究中心有限公司 | A kind of design method of synchronous motor |
| CN111651846A (en) * | 2020-06-02 | 2020-09-11 | 四川长虹空调有限公司 | Automatic optimization method for pipeline design of refrigeration equipment |
| CN112924090A (en) * | 2021-01-28 | 2021-06-08 | 华中科技大学 | Motor air gap eccentric fault detection method and system based on electromagnetic stress analysis |
| CN112968582A (en) * | 2021-03-05 | 2021-06-15 | 江苏大学 | Low-vibration permanent magnet brushless motor optimization design method |
| CN113489387A (en) * | 2021-07-30 | 2021-10-08 | 东方电气集团东方电机有限公司 | Method for weakening electromagnetic vibration and noise of permanent magnet synchronous motor with specific frequency |
| CN113505495A (en) * | 2021-07-29 | 2021-10-15 | 中国第一汽车股份有限公司 | Method for analyzing electromagnetic force of stator of permanent magnet synchronous motor |
| CN114048649A (en) * | 2021-11-09 | 2022-02-15 | 华能澜沧江水电股份有限公司 | Method for weakening low-frequency vibration of stator of hydraulic generator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617720A (en) * | 2015-01-27 | 2015-05-13 | 华北电力大学（保定） | Method for weakening cogging torque of permanent magnet synchronous generator |
-
2017
- 2017-03-15 CN CN201710154495.7A patent/CN106934162A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617720A (en) * | 2015-01-27 | 2015-05-13 | 华北电力大学（保定） | Method for weakening cogging torque of permanent magnet synchronous generator |
Non-Patent Citations (2)
| Title |
|---|
| 杨国龙: "曳引机用外转子永磁同步电动机的分析与优化设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑（月刊）》 * |
| 蔡黎明: "永磁同步电动机电磁振动与噪声的研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑（月刊）》 * |
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| CN108539935A (en) * | 2018-05-14 | 2018-09-14 | 上海电力学院 | Electric vehicle permanent magnet synchronous motor wide-range-timing vibration noise source analysis method |
| CN109115328A (en) * | 2018-07-15 | 2019-01-01 | 东北石油大学 | The automatic monitoring analyzer of feeding oil pump electromagnetic noise |
| CN109115328B (en) * | 2018-07-15 | 2020-10-30 | 东北石油大学 | Automatic monitoring analyzer for electromagnetic noise of oil transportation pump unit |
| CN109214125A (en) * | 2018-10-22 | 2019-01-15 | 华中科技大学 | A kind of calculation method of motor electromagnetic vibration noise |
| CN110224642A (en) * | 2019-04-25 | 2019-09-10 | 上海电机系统节能工程技术研究中心有限公司 | A kind of design method of synchronous motor |
| CN111651846A (en) * | 2020-06-02 | 2020-09-11 | 四川长虹空调有限公司 | Automatic optimization method for pipeline design of refrigeration equipment |
| CN112924090A (en) * | 2021-01-28 | 2021-06-08 | 华中科技大学 | Motor air gap eccentric fault detection method and system based on electromagnetic stress analysis |
| CN112968582A (en) * | 2021-03-05 | 2021-06-15 | 江苏大学 | Low-vibration permanent magnet brushless motor optimization design method |
| CN113505495A (en) * | 2021-07-29 | 2021-10-15 | 中国第一汽车股份有限公司 | Method for analyzing electromagnetic force of stator of permanent magnet synchronous motor |
| CN113489387A (en) * | 2021-07-30 | 2021-10-08 | 东方电气集团东方电机有限公司 | Method for weakening electromagnetic vibration and noise of permanent magnet synchronous motor with specific frequency |
| CN114048649A (en) * | 2021-11-09 | 2022-02-15 | 华能澜沧江水电股份有限公司 | Method for weakening low-frequency vibration of stator of hydraulic generator |
| CN114048649B (en) * | 2021-11-09 | 2024-04-12 | 华能澜沧江水电股份有限公司 | Method for weakening stator low-frequency vibration of hydraulic generator |
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