CN108365791A - A kind of alternating current generator coordinate system modification method for stator winding deviation - Google Patents
A kind of alternating current generator coordinate system modification method for stator winding deviation Download PDFInfo
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- CN108365791A CN108365791A CN201810345998.7A CN201810345998A CN108365791A CN 108365791 A CN108365791 A CN 108365791A CN 201810345998 A CN201810345998 A CN 201810345998A CN 108365791 A CN108365791 A CN 108365791A
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- alternating current
- current generator
- stator winding
- coordinate system
- deviation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
Abstract
A kind of alternating current generator coordinate system modification method for stator winding deviation, its main feature is that by being standardized to collected alternating current generator electric signal, spatial relationship according to alternating current generator ideal stator winding coordinate system and actual stator winding coordinate system, it calculates between alternating current generator ideal stator winding coordinate system and actual stator winding coordinate system there are angular deviation, and then corrects stator winding there are the alternating current generator actual coordinates of deviation.This method is not easy to be influenced by temperature and operating mode, correction result can provide reference for the determination and design of AC Motor Control strategy and control system, alternating current generator mathematical model is enabled to be closer to actual motor model, control algolithm, coordinate transform and vector based on this mathematical model are more accurate, it is beneficial to improve control effect and improves the performance of alternating current generator, improves the Stability and dependability of AC Motor Control system operation.
Description
Technical field
The invention belongs to alternating current generator technical field more particularly to a kind of alternating current generator coordinates for stator winding deviation
It is modification method.
Background technology
With the development of Theory of Electromagnetic Field and motor technology, all kinds of alternating current generators and AC Motor Control strategy constantly produce
Raw and development.When carrying out scientific research and engineer application, in order to pursue the control that precision is high, strong robustness and dynamic response are fast
Effect, it is necessary first to establish the mathematical model of alternating current generator, and then control algolithm is gone out by Derivation of Mathematical Model, eventually form and hand over
The control strategy and control system that galvanic electricity machine own mechanical properties, electrical characteristic and specific operation match.Establishing alternating current
During machine mathematical model, often need to carry out necessary hypothesis or simplification, it is assumed for example that motor stator winding Striking symmetry, electricity
Machine magnetic circuit is linear, Sine distribution is presented in air-gap field, these belong to Utopian hypothesis.Due to the essence of motor production technology
Degree limitation and motor oscillating influence, stator winding axis will not Striking symmetry, this results in the stator winding of alternating current generator to sit
Mark system is asymmetric stator winding coordinate system, i.e., there are angles between ideal stator winding coordinate system and actual stator winding coordinate system
Deviation, hereinafter referred to as " reference axis angular deviation ".
With perfect, the AC Motor Control system based on coordinate transform, vector of alternating current generator vector control theory
System continues to develop, and achieves good control effect in Practical Project；But the key of coordinate transform and vector is to refer to
The calculating of the selection and rotor angle of coordinate system, existing research demonstrate shadow of the reference axis angular deviation to vector controlled effect
It rings.Reference axis angular deviation can cause alternating current generator Space current vector, space fundamental wave magnetomotive force vector to be no longer presented ideal shape
Shape, and then electric current, loss, the fluctuation of speed and the torque ripple of alternating current generator is caused to increase, influence the actual work of alternating current generator
Performance.Under certain special operating modes, such as in vacuum environment, high-pressure high-temperature environment, the heat-sinking capability of alternating current generator is limited, such as
There are reference axis angular deviation, the losses and calorific value of alternating current generator can also increase for fruit, and then frequently causes the mistake of control system
Thermal protection reduces system on-line operation time and robustness.
It is (public that Chinese patent disclosed a kind of " asynchronous machine rotor field orientation angle update the system and method " in 2015
Cloth number is CN103326656A), which is sentenced using asynchronous machine d shaft voltages theoretical value as foundation using integral controller, polarity
Disconnected unit and sampling unit, calculate slip modified gain and slip, to be modified to the angle of field orientation.The invention is only
It is only applicable to asynchronous machine, and directly the angle of field orientation is modified, other kinds of alternating current generator can not be suitable for
Or do not use in the control system of field orientation, while having used pure integrator, and the parameter of asynchronous machine be vulnerable to temperature,
The influence of operating mode, therefore the accumulation of error caused by parameter change or pure integrator limits application of the patent in engineering.
Invention content
The present invention provides a kind of alternating current generator seat for stator winding deviation aiming at defect of the existing technology
Mark system modification method, purpose is that asks for above-mentioned technology existing for existing AC Motor Control strategy and control system
Topic, provides a kind of alternating current generator coordinate system modification method for stator winding deviation, to determine reference axis angular deviation, in turn
Determination and design for existing AC Motor Control strategy and control system provide reference, overcome reference axis angular deviation to exchange
The influence of motor working performance, energy-saving effect, control accuracy and control effect.
To achieve the above object, the present invention adopts the following technical scheme that, includes the exchange for stator winding there are deviation
Motor coordinate system corrects flow and alternating current generator reference axis angular deviation calculation process, using device or workbench to stator winding
There are the alternating current generators of deviation to carry out firm fixed and pretreatment, and the motion parts of alternating current generator is made to have certain magnetism and by one
Constraints is determined with Stator Windings of AC Motor there are relative motion, and each phase stator winding of alternating current generator is based on this opposite fortune
It is dynamic, the electric signal for having correspondence with the kinetic characteristic of alternating current generator motion parts, spatial relationship is will produce, by electric signal
It is sampled, preceding value filtering and locking phase, electric signal standardization, according to alternating current generator ideal stator winding coordinate system and reality
The spatial relation of stator winding coordinate system, the angular deviation of coordinates computed axis simultaneously correct alternating current of the stator winding there are deviation
Machine coordinate system.
As a preferred embodiment of the present invention, encouraged in advance using injection into Stator Windings of AC Motor or in Exciting Windings for Transverse Differential Protection
The preprocessing means of magnetoelectricity stream make the motion parts that motion parts do not have magnetic alternating current generator have certain magnetism,
Relative motion is generated with Stator Windings of AC Motor under the action of tractor or electromagnetic force, the direction of relative motion should be with one
Determine magnetic line of force direction caused by angle cutting movement part, the electric signal that each phase stator winding of alternating current generator generates(i is
The diacritics of each phase stator winding of alternating current generator) and ideal stator winding coordinate system in electric signalBy respectively into rower
Quasi-ization processing, basic processing rule are：IfIt is converted to after so normalized processingIfSo
It is converted to after normalized processingIfIt is converted to after so normalized processingIfThat
It is converted to after normalized processingEach phase electric signal after standardization presses each phase stator winding in space
Position relationship performance with same reference frame, calculated according to reference axis angular deviation and determine workflow management coordinate system angle
Spend deviation.
As another preferred embodiment of the present invention, after alternating current generator electric signal standardization, it is with a phase signals
Reference signal, by the signal in remaining each phase actual stator winding coordinate system and the signaling point in ideal stator winding coordinate system
Multiply, be expressed as the characteristic signal G of corresponding phase, the spatial relation based on reference waveform signal Yu characteristic signal waveform can be counted
Calculate the angle value of each phase coordinates axis angular deviation
As another preferred embodiment of the present invention, for m phases n to the alternating current generator of pole, when each phase coordinates shaft angle degree is inclined
The angle value of difference(1<I≤m) calculate after the completion of, there are the alternating current generator coordinate systems of deviation can complete to correct for stator winding,
Using the axis of n-th pair of extremely lower first phase stator winding as axis of reference, then n-th pair extremely under i-th (1<I≤m) phase stator winding
Winding and the Space Angle angle value of axis of reference be equal to
Advantageous effect of the present invention compared with prior art.
The present invention provides a kind of alternating current generator coordinate system modification method for stator winding deviation, and this method is not easy by temperature
The influence of degree and operating mode realizes that there are the alternating current generator coordinate systems of deviation to be modified to stator winding, and correction result can be
The determination and design of AC Motor Control strategy and control system provide reference, enable to the more adjunction of alternating current generator mathematical model
It is bordering on actual motor model, control algolithm, coordinate transform and vector based on this mathematical model are more accurate, are beneficial to
It improves control effect and improves the performance of alternating current generator, improve the Stability and dependability of AC Motor Control system operation.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of the following contents.
Fig. 1 is the alternating current generator coordinate system modification method flow diagram that the present invention is directed to stator winding deviation.
Fig. 2 is alternating current generator reference axis angular deviation calculation process schematic diagram of the present invention.
Fig. 3 is alternating current generator reference axis angular deviation schematic diagram in three-phase the two poles of the earth of the present invention.
Fig. 4 is three-phase the two poles of the earth alternating current generator reference axis angular deviation computational methods schematic diagram of the present invention.
Fig. 5 is that the present invention is based on a kind of realities of alternating current generator coordinate system modification method for stator winding deviation of the invention
Apply example.
Fig. 6 is to implement a kind of alternating current generator coordinate system modification method for stator winding deviation of the invention to coordinate shaft angle
Spend the experimental data comparison diagram of deviation.
In figure, 1 be AC motor rotor, 2 be alternating-current motor stator, 3 be stator winding deviation alternating current generator coordinate system
Correcting module, 4 be alternating current generator testboard, 5 be power supply, 6 in order to control device, 7 be conducting wire or signal wire, 8 be alternating current generator, 9 be
Motor fixing device, 10 be workbench, 11 be motor coupler, 12 be dragging motor, 13 be motor speed sensor.
Specific implementation mode
As shown in figures 1 to 6, the present invention is a kind of alternating current generator coordinate system modification method for stator winding deviation, special
Point is by being standardized to collected alternating current generator electric signal, according to alternating current generator ideal stator winding coordinate
The spatial relationship of system and actual stator winding coordinate system, the angular deviation of coordinates computed axis and the alternating current for correcting stator winding deviation
Machine coordinate system.And then the alternating current generator coordinate system modification method for stator winding deviation is utilized, design a kind of reality
It is directed to the alternating current generator coordinate system correcting device of stator winding deviation.
As shown in Figure 1, after alternating current generator is fixed, it is certain magnetic to judge whether the rotor of alternating current generator has, if exchange
The rotor of motor does not have is equipped with Exciting Windings for Transverse Differential Protection on certain magnetic or rotor, after being handled by rotor magnetization, alternating current generator
Rotor can have certain magnetism；For being embedded with permanent magnet or the alternating current generator of other magnetic materials, rotor itself on rotor
Certain magnetism is had been provided with.The angular speed of the then rotor rotation of dragging alternating current generator, rotor rotation is ωr, rotate through
AC motor rotor in journey is equivalent to an equivalent magnet, and there are cutting magnetic induction lines with Stator Windings of AC Motor for equivalent magnet
Relative motion, will move on stator winding and bear induced voltage, the magnetic of the amplitude and frequency and rotor equivalent magnet of the voltage
Field intensity, alternating current generator rotating speed are directly proportional.It, can be to coordinate by suitably being handled the induced voltage on stator winding
Axis angular deviation calculate and there are the alternating current generator coordinate systems of deviation to be modified to stator winding.It finally determines and corrects
As a result externally output, needs for Practical Project personnel and control system.
As shown in Fig. 2, the alternating current generator reference axis angular deviation calculation process includes mainly electric signal input, electric signal
Sampling, preceding value filtering and locking phase, electric signal standardization, reference axis angular deviation calculates and the flows such as determining, result output.
Flow is sampled for electric signal, input signal is that Fig. 1 drags the dynamic voltage signal born of stator side after rotor is rotated with rotating speedThe value of i is related with the stator winding number of phases of alternating current generator, such as the number of phases of stator winding is three-phase, then input signal
It is represented byBy the Shaimon Sampling Theorem in control principle, it is T to take the sampling period of electric signal, then
Sample frequency fs=1/T samples angular frequencys=2 π fs, through electric signal sample flow after output signal be
Electric signal samples the output signal of flow as pre-filtering and the input signal of locking phase flow；Due to pre-filtering and locking phase stream
Inevitably noise or unknown harmonic wave in the input signal of journey, therefore can be disappeared using pre-filtering and phase-lock technique
Except in signal noise or unknown harmonic wave, pre-filtering can realize that digital filter be adopted by voltage retainer or digital filter
With bandwidth filtering mode, bandwidth angular frequency maximum value is ωr, phase-locked loop or phaselocked loop device may be used in locking phase link
PLL (Phase-Locked Loop) realizes that the flow can also be used particular harmonic and eliminate phase-lock technique SHE-PLL (Specific
Harmonic eliminate-PLL) and device is realized and output signal；Electric signal standardization flow is defeated to a upper flow
The signal gone out is standardized, and basic skills is：If upper flow input signalSo through electric signal standard
Change the output signal of process flowIf upper flow input signalSo through electric signal standardization stream
The output signal of journeyOutput signal after electric signal standardization flow is as downstream --- reference axis
Angular deviation calculates and determines that the input signal of flow, reference axis angular deviation calculate and determine that workflow management reference axis angle is inclined
Difference is simultaneously input to downstream；As a result output flow externally exports the result of calculation of a upper flow, reference axis angular deviation meter
Calculation method will be done further specifically the specific implementation process of its content and the present invention in conjunction with Figure of description and embodiment
It is bright.
As shown in figure 3, being three-phase the two poles of the earth alternating current generator reference axis angular deviation schematic diagram.AC motor rotor 1 is handed in figure
Galvanic electricity machine stator 2 constitutes the fundamental of alternating current generator mechanical structure, and cooperation 1 alternating-current motor stator 2 of AC motor rotor is complete
At the other element not specific manifestation in figure 3 of alternating current generator function, axis A, axis B, axis C and its space in Fig. 3 are closed
System has collectively constituted alternating current generator ideal stator winding coordinate system, axisAxisAxisIts spatial relationship collectively constitutes
Alternating current generator actual stator winding coordinate system.Axis A in alternating current generator ideal stator winding coordinate system can always pass through
The method for imitating transformation and the axis in alternating current generator ideal stator winding coordinate systemIt coincides, at this timeIt is alternating current mechanism
Think stator winding coordinate system central axes B and actual stator winding coordinate system central axesAngle,It is alternating current generator ideal
Stator winding coordinate system central axes B and actual stator winding coordinate system central axesAngle.Without loss of generality, it is believed thatIt is all higher than 0.In alternating current generator ideal stator winding coordinate system, axis A and axis B spatially differ 120 ° of skies
Between angle, i.e. θAB=120 °；Axis A and axis C spatially differs 240 ° of space angles, i.e. θAC=120 °.In practical ideal stator
In winding coordinate system, axisAnd axisSpatially differSpace angle, i.e.,
AxisAnd axisSpatially differSpace angle, i.e.,The realization of the present invention
The first purpose is justWithDetermination, and then realize actual stator winding coordinate system determination and amendment.
As shown in figure 4, being three-phase the two poles of the earth alternating current generator reference axis angular deviation computational methods schematic diagram.Due to axis A, axis
Line B, axis C, axisAxisAxisIt is the equivalent performance after Stator Windings of AC Motor centralized processing, therefore axis
Spatial position also determine magnet rotor rotation when stator side three-phase voltage space vector relationship.It respectively will be on six axis
Stator side voltage be expressed as WithWhereinWithBeing can be direct
In the signal that alternating-current motor stator side measures,WithIt is the signal derived based on ideal stator winding coordinate system, introduces
Purpose when in order to more intuitively illustrate the foundation and principle of reference axis angular deviation.It is easy to deduceLagElectricity
Angle,LagElectrical angle；LagElectrical angle,Lag
Electrical angle.Utilize Fig. 2 and the electric signal standardization flow pairWithIt carries out
Standardization, and correspondence is expressed as respectively by the signal after standardization Standard
Changing the basic skills handled is：1. ifSoIfSo2. ifSoIfSo3. ifSoIfThat
4. ifSoIfSo5. ifSoIfSo6. ifSoIfSoIt is fixed
Adopted B phase characters signal G, value are equal toWithDot product, willFig. 4 is found expression in the waveform of G.Fig. 4 can
To find out：If withWaveform be reference waveform signal, andThe positive half cycle time of waveform is Δ tA, whenWaveform
The negative half period time of G waveforms is Δ t when positive half cycleG, thenUsing similar computational methods,
It can calculateValue.Since the sampling period of electric signal is T, Δ tAWith Δ tGNumerical value be easy to by calculate sampling time
Number obtains.
Shown in Fig. 5, for the reality based on a kind of alternating current generator coordinate system modification method for stator winding deviation of the invention
Apply example.Mainly by alternating current generator coordinate system correcting module 3, alternating current generator testboard 4, power supply 5, the controller of stator winding deviation
6, conducting wire or signal wire 7, alternating current generator 8, motor fixing device 9, workbench 10, motor coupler 11, dragging motor 12, motor
Velocity sensor 13 is constituted.Alternating current generator 8 is fixed in workbench 10 by motor fixing device 9, it is ensured that alternating current generator 8 and dragging
Motor 12 can be coaxially connected by motor coupler 11.Do not have the exchange that Exciting Windings for Transverse Differential Protection is housed on magnetic or rotor for rotor
Motor 8, controller 6 control the pre-excitation electric current I that power supply 5 injects certain time to the threephase stator winding of alternating current generator 8i(i=
A, B, C), whereinWherein LrFor inductor rotor, Lm
For alternating current generator mutual inductance, TeFor nominal torque, npFor Stator Windings of AC Motor number of pole-pairs.After being handled by rotor magnetization, rotor
Can have certain magnetism；Have for being embedded with permanent magnet or the alternating current generator of other magnetic materials, rotor itself on rotor
It is magnetic.Subsequent controller 6 controls power supply 5 and is disconnected from alternating current generator 8, and with the rated voltage of dragging motor 12 to dragging motor 12
Injecting voltage, dragging motor 12 gradually start under the action of power supply 5, pass through the speed feedback signal of motor speed sensor 13
The rotating speed for determining dragging motor 12, when stabilization of speed, the alternating current generator coordinate system correcting module 3 of stator winding deviation is by already described
Flow and method stator side voltage is handled, calculateWithValue, then axisWith axisSpace Angle
Degree isAxisWith axisSpace angle beUtilize axisAxisAxisAnd its spatial position angular relationship, obtain revised alternating current generator coordinate system.
It is directed to the alternating current generator coordinate system modification method of stator winding deviation through the invention, it is inclined to realize reference axis angle
The calculating and determination of difference, and the asymmetric stator winding coordinate system of alternating current generator is determined and corrected.Utilize Maxwell
14.0 finite element emulation softwares establish the alternating current generator two dimensional model of asymmetric stator winding, and different reference axis angles is arranged
The reference axis angu-lar deviation of setting is simultaneously defined as actual angle by deviation, implements the friendship that the present invention is directed to stator winding deviation
Galvanic electricity machine coordinate system modification method, calculates reference axis angular deviation.
As shown in fig. 6, to implement the present invention to the determination of asymmetric stator winding coordinate system and correcting experimental data comparison
Figure, it can be seen that estimated angle value and the actual angle value of reference axis angular deviation are closer to.
In above-described embodiment, docked with the coaxially connected and accurate of dragging motor 12 for the ease of alternating current generator 8, motor is solid
Determining device 9 should be with the degree of freedom on tri- directions XYZ and its space modes of emplacement, contour structures and without being bound by the table in Fig. 4
Existing form, the diameter of axle of motor coupler 11 should match with the diameter of axle of alternating current generator 8, dragging motor 12.
Alternating current generator in the various embodiments described above is three-phase the two poles of the earth alternating current generator, but also promotes and be suitable for polyphase multipolar feelings
Condition.
The foregoing is merely the present invention a kind of embodiment, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on, such as by the alternating current generator inner rotor core in the present embodiment
Outer-rotor structure is changed to either to be changed to tray type structure or be changed to linear structure, control strategy or dress using Speedless sensor
Set the function and effect, polyphase multipolar alternating current generator for realizing motor speed sensor 13, or using alternating-current motor stator residual voltage,
Back-emf should be included in as the input signal etc. in Fig. 2 alternating current generator reference axis angular deviation calculation process schematic diagrames
Within protection scope of the present invention.
It should also be noted that, herein, such as workflow schematic diagram or calculation process schematic diagram, a upper flow with
The term of downstream, disconnection and injection etc is used merely to indicate an entity or operation and another entity or operation
It distinguishes, without necessarily requiring or implying between these entities or operation, there are any this actual relationships or suitable
Sequence.Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that packet
The process, method, article or equipment for including a series of elements includes not only those elements, but also includes being not explicitly listed
Other element, or further include for elements inherent to such a process, method, article, or device.Do not limiting more
In the case of, the element that is limited by sentence "including a ...", it is not excluded that in the process including the element, method, object
There is also other identical elements in product or equipment.
Each embodiment is described by the way of progressive in this specification, and each embodiment stresses and what is stressed is
Difference from other examples, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (4)
1. a kind of alternating current generator coordinate system modification method for stator winding deviation, which is characterized in that main includes for fixed
There are the alternating current generator coordinate systems of deviation to correct flow and alternating current generator reference axis angular deviation calculation process composition, profit for sub- winding
With device or workbench, to stator winding, there are the alternating current generators of deviation to carry out firm fixed and pretreatment, makes the fortune of alternating current generator
Dynamic part has certain magnetism and there are relative motion, each phases of alternating current generator with Stator Windings of AC Motor by certain constraints
Stator winding is based on this relative motion, and will produce has corresponding pass with the kinetic characteristic of alternating current generator motion parts, spatial relationship
The electric signal of system is sampled electric signal, preceding value filtering and locking phase, electric signal standardization, according to alternating current generator
The spatial relation of ideal stator winding coordinate system and actual stator winding coordinate system, the angular deviation of coordinates computed axis are simultaneously corrected
There are the alternating current generator coordinate systems of deviation for stator winding.
2. a kind of utilizing a kind of alternating current generator coordinate system modification method for stator winding deviation as described in claim 1,
It is characterized in that, using the preprocessing means for injecting pre-excitation electric current into Stator Windings of AC Motor or in Exciting Windings for Transverse Differential Protection, make
The motion parts that motion parts do not have magnetic alternating current generator have certain magnetism, in the effect of tractor or electromagnetic force
Lower and Stator Windings of AC Motor generates relative motion, and the direction of relative motion should be cutting movement part at a certain angle and be produced
Raw magnetic line of force direction, the electric signal that each phase stator winding of alternating current generator generates(i is each phase stator winding of alternating current generator
Diacritics) and ideal stator winding coordinate system in electric signalIt is standardized respectively, basic processing rule
It is then：IfIt is converted to after so normalized processingIfIt is converted to after so normalized processingIfIt is converted to after so normalized processingIfIt is converted after so normalized processing
ForEach phase electric signal after standardization by the position relationship performance in space of each phase stator winding with it is same
In reference frame, is calculated according to reference axis angular deviation and determine workflow management coordinate system angu-lar deviation.
3. a kind of alternating current generator coordinate system modification method for stator winding deviation according to claim 2, feature
It is, after alternating current generator electric signal standardization, using a phase signals as reference signal, by remaining each phase actual stator winding
Signal in coordinate system and the signal dot product in ideal stator winding coordinate system, are expressed as the characteristic signal G of corresponding phase, based on ginseng
The spatial relation of signal waveform and characteristic signal waveform is examined, the angle value of each phase coordinates axis angular deviation can be calculated
4. a kind of alternating current generator coordinate system modification method for stator winding deviation according to claim 2, feature
It is, for m phases n to the alternating current generator of pole, when the angle value of each phase coordinates axis angular deviationIt calculates and completes
Afterwards, there are the alternating current generator coordinate systems of deviation can complete to correct for stator winding, with the axis of n-th pair of extremely lower first phase stator winding
Line is axis of reference, then n-th pair extremely under i-th (1<I≤m) winding of phase stator winding and the Space Angle angle value etc. of axis of reference
In
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11463036B2 (en) * | 2020-06-24 | 2022-10-04 | Huazhong University Of Science And Technology | Method for analyzing magnetomotive force of windings in short primary linear machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010116815A1 (en) * | 2009-03-30 | 2010-10-14 | 株式会社日立製作所 | Ac motor control device and ac motor driving system |
| CN105245151A (en) * | 2015-11-04 | 2016-01-13 | 南京航空航天大学 | Method for detecting position of surface-mounted permanent magnet synchronous motor rotor |
| CN107179442A (en) * | 2017-04-06 | 2017-09-19 | 安徽大学 | A kind of diagnostic method of permanent-magnetic synchronous motor stator winding resistance unbalanced fault |
-
2018
- 2018-04-18 CN CN201810345998.7A patent/CN108365791B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010116815A1 (en) * | 2009-03-30 | 2010-10-14 | 株式会社日立製作所 | Ac motor control device and ac motor driving system |
| CN105245151A (en) * | 2015-11-04 | 2016-01-13 | 南京航空航天大学 | Method for detecting position of surface-mounted permanent magnet synchronous motor rotor |
| CN107179442A (en) * | 2017-04-06 | 2017-09-19 | 安徽大学 | A kind of diagnostic method of permanent-magnetic synchronous motor stator winding resistance unbalanced fault |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11463036B2 (en) * | 2020-06-24 | 2022-10-04 | Huazhong University Of Science And Technology | Method for analyzing magnetomotive force of windings in short primary linear machine |
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