CN108429493A - A kind of caliberating device and its method of three-phase permanent magnet synchronous motor initial zero position - Google Patents
A kind of caliberating device and its method of three-phase permanent magnet synchronous motor initial zero position Download PDFInfo
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- CN108429493A CN108429493A CN201810235984.XA CN201810235984A CN108429493A CN 108429493 A CN108429493 A CN 108429493A CN 201810235984 A CN201810235984 A CN 201810235984A CN 108429493 A CN108429493 A CN 108429493A
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- motor
- rotary transformer
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Classifications
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
-
- 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
- H02P21/24—Vector control not involving the use of rotor position or rotor speed sensors
- H02P21/32—Determining the initial rotor position
-
- 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
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/03—Determination of the rotor position, e.g. initial rotor position, during standstill or low speed operation
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Abstract
The present invention relates to a kind of caliberating devices and its method of three-phase permanent magnet synchronous motor initial zero position；Wherein, caliberating device, including rack, subject motor in rack and accompany examination motor, subject motor and accompany and try motor and coaxially couple；Subject motor is also associated with data collector, and data collector is connected with data-analyzing machine, and examination motor is accompanied to be also associated with electric machine controller.The present invention collects analyzing processing in data-analyzing machine using subject three opposite potential of motor and signals of rotating transformer by data collector, motor phase and the zero drift of rotary transformer are shown finally by touch-screen display, by adjusting rotary transformer stator angle in real time, motor initial zero position is set to be overlapped with rotary transformer zero-bit so that when motor dispatches from the factory, motor initial zero position can be calibrated, it is easy to operate, it is quick and accurate.
Description
Technical field
The present invention relates to electric motors, more specifically refer to a kind of calibration of three-phase permanent magnet synchronous motor initial zero position
Devices and methods therefor.
Background technology
There is angle theta between permasyn morot d axis and U phase winding axis, is exactly the initial of motor when which is zero
Zero-bit, usual Motor Production Test are adjusted by equipment, and the d axis of permasyn morot is made to be overlapped with U phase winding axis.Motor operates
When, controller to meet output torque under motor difference operating mode and exports rotating speed by adjusting θ, therefore, if permanent magnet synchronous electric
Motivation initial zero position is inaccurate, directly affects motor torque speed precision and dynamic response performance and electric efficiency.
There are as below methods for existing motor static state pair zero：1, just by U phase windings access voltage stabilization and current stabilization direct-current switch power supply
Pole, V and W access the cathode of DC power supply after being in parallel, be passed through the direct current of rated current of motor, at this point, rotor orients
To the initial zero position of U phase winding axis, that is, motor, the stator angle of rotary transformer is rotated, is rotated with oscilloscope measurement
Transformer sine output signal when sinusoidal signal amplitude is zero, fixes rotary transformer stator, at this time, it is determined that rotation becomes
Depressor zero-bit, in use, controller can judge the angles θ of motor by reading the position of rotary transformer；2, by U phase windings
Access the anode of above-mentioned DC power supply, V connects cathode, and rotor-position is fixed at this time, rotates rotary transformer stator angle, with showing
Wave device measures rotary transformer sine output signal, when positive signal output amplitude is zero, fixes rotary transformer stator, at this time
Motor initial position is set to -30 °.
Belong to rotor positioning mode above and determine motor initial zero position, motor cogging torque or friction torque are too big, shadow
Ring motor initial zero position.Wherein in method 1, V and W are in parallel, and electric current can influence motor rotor position whens not equal, cause to zero not
Accurately；In method 1, not intuitively, error is easy tod produce.
Invention content
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of three-phase permanent magnet synchronous motor initial zero position is provided
Caliberating device and its method.
To achieve the above object, the present invention uses following technical scheme：
A kind of caliberating device of three-phase permanent magnet synchronous motor initial zero position, including rack, the subject being set in the rack
Motor and accompany examination motor, the subject motor tries motor and coaxially couples with accompanying；The subject motor is also associated with
Data collector, the data collector is connected with data-analyzing machine, described that examination motor is accompanied to be also associated with electric machine controller.
Its further technical solution is：The subject motor and accompany examination motor between be additionally provided with rapid coupler.
Its further technical solution is：It is described to accompany examination motor with counterclockwise, constant speed rotary, and rotating speed is its rated speed
1/2.
Its further technical solution is：The data-analyzing machine, which also couples, touch-screen display.
Its further technical solution is：The subject motor is connect by UVW three-phases with the data collector；It is described
Subject motor is also built-in with rotary transformer, and the rotation that the data collector is built-in with the corresponding rotary transformer becomes
Depressor exciting signal source；The rotary transformer exciting signal source is used to provide sinusoidal excitation signal to the rotary transformer,
The data collector extracts in the rotary transformer sine wave-shaped signal to the data-analyzing machine.
A kind of scaling method of three-phase permanent magnet synchronous motor initial zero position, includes the following steps；
Step 1, power-up initializing；
Step 2 accompanies examination motor to drive subject motor rotation with counterclockwise, constant speed；
Step 3, the counter potential waveform of data collector acquisition subject motor and the sinusoidal waveform letter of rotary transformer output
Number, and waveform signal is transmitted to data-analyzing machine；
Step 4, data-analyzing machine converts above-mentioned two waveform signal to digital signal, and does real-time calculating, by touch screen
Display shows above-mentioned waveshape angle, by adjusting rotary transformer stator angle, makes rotary transformer zero and electricity
Machine U opposite potential zero crossings overlap, at this point, fixing rotary transformer stator, subject motor initial zero position calibration is completed.
Its further technical solution is：In the step 2, described accompany tries the rotating speed of motor as the 1/ of its rated speed
2。
Its further technical solution is：Further include the following contents in the step 3：The subject motor is adopted with data
Storage is connected by UVW tri-, and the data collector is built-in with the potential extraction circuit opposite with U, is connect by 3 " Y " big
Resistance is constituted, and makes resistance loop close to open circuit, thus simulates the U opposite potential waveforms of the subject motor, and extraction U is opposite
In potential waveform to the data-analyzing machine.
Its further technical solution is：Further include the following contents in the step 3：The subject motor shaft end also fills
There are rotary transformer, the data collector to be built-in with the rotary transformer pumping signal for corresponding to the rotary transformer
Source, the rotary transformer exciting signal source provide the sinusoidal excitation signal of sin ω t to the rotary transformer, and for carrying
In the sinusoidal signal sin ω t*sin β to the data-analyzing machine for taking the rotary transformer feedback.
Its further technical solution is：Further include the following contents in the step 4：Described in the data-analyzing machine decoding
Rotary transformer sinusoidal signal makes amplitude zero crossing generate pulse Z signals, rises to the signal and U opposite potential positive half cycles
The phase of zero does real-time calculating, and calculating angle is shown by touch-screen display, by adjusting rotary transformer stator angle
It is overlapped to angles of display in touch-screen display, at this point, rotary transformer stator is fixed, subject motor initial zero position calibration
It completes.
Compared with the prior art, the invention has the advantages that：By rack, subject motor in rack and accompany
Motor is tried, subject motor coaxially couples with examination motor is accompanied；Subject motor is also associated with data collector, data acquisition
Device is connected with data-analyzing machine, and examination motor is accompanied to be also associated with electric machine controller；It is tested three opposite potential of motor and rotation becomes
Depressor signal collects analyzing processing in data-analyzing machine by data collector, and electricity is shown finally by touch-screen display
The zero drift of motivation phase and rotary transformer makes motor initial zero by adjusting rotary transformer stator angle in real time
Position is overlapped with rotary transformer zero-bit so that when motor dispatches from the factory, and can calibrate motor initial zero position, easy to operate, fast
And precisely.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the caliberating device of three-phase permanent magnet synchronous motor initial zero position；
Fig. 2 is a kind of flow chart of the scaling method of three-phase permanent magnet synchronous motor initial zero position；
Fig. 3 is the three dimensional vector diagram of three-phase permanent-magnetic synchronous motors；
Fig. 4 is output signal of rotary transformer schematic diagram；
Fig. 5 is that U opposite potentials extract circuit diagram in data collector.
10 racks 20 are tested motor
30 accompany examination 40 data collector of motor
50 data-analyzing machine, 60 electric machine controller
70 rapid coupler, 80 touch-screen display
Specific implementation mode
In order to more fully understand the present invention technology contents, with reference to specific embodiment to technical scheme of the present invention into
One step introduction and explanation, but not limited to this.
If Fig. 1 is to specific embodiment shown in fig. 5, as shown in Figure 1, the invention discloses a kind of three-phase permanent magnet synchronous motors
The caliberating device and its method of initial zero position；Wherein, as shown in Figure 1, the caliberating device of three-phase permanent magnet synchronous motor initial zero position,
Including rack 10, subject motor 20 in rack 10 and examination motor 30 is accompanied, subject motor 20 and accompanies examination motor
30 coaxial connections；Subject motor 20 is also associated with data collector 40, and data collector 40 is connected with data-analyzing machine 50, accompanies
Examination motor 30 is also associated with electric machine controller 60.
In the present embodiment, electric machine controller 60 accesses power grid by threephase switch and protection circuit.
Specifically, as shown in Figure 1, subject motor 20 and accompany examination motor 30 between be additionally provided with rapid coupler 70, make
It must be conveniently connected and two motors invariablenes turning speed, the counter potential waveform of subject motor 20 is stablized in the case of constant speed, back-emf mistake
Zero is also stablized.
Further, accompany examination motor 20 with counterclockwise, constant speed rotary, and 1/2 that rotating speed is its rated speed.
Wherein, data-analyzing machine 50, which also couples, touch-screen display 80, intuitively to find out result.
Further, subject motor 20 is connect by UVW three-phases with data collector 40；It is also built-in to be tested motor 20
There are rotary transformer (not shown), data collector 40 to be built-in with the rotary transformer excitation letter of corresponding rotary transformer
Number source；Rotary transformer exciting signal source for give rotary transformer provide sinusoidal excitation signal, data collector extraction described in
In rotary transformer sine wave-shaped signal to the data-analyzing machine.
Specifically, as shown in Fig. 2, the invention also discloses a kind of calibration sides of three-phase permanent magnet synchronous motor initial zero position
Method includes the following steps；
Step 1, power-up initializing；
Step 2 accompanies examination motor to drive subject motor rotation with counterclockwise, constant speed；
Step 3, the counter potential waveform of data collector acquisition subject motor and the sinusoidal waveform letter of rotary transformer output
Number, and waveform signal is transmitted to data-analyzing machine；
Step 4, data-analyzing machine converts above-mentioned two waveform signal to digital signal, and does real-time calculating, by touch screen
Display shows above-mentioned waveshape angle, by adjusting rotary transformer stator angle, makes rotary transformer zero and electricity
Machine U opposite potential zero crossings overlap, at this point, fixing rotary transformer stator, subject motor initial zero position calibration is completed.
Wherein, in step 2, described accompany tries the rotating speed of motor as the 1/2 of its rated speed.
Wherein, further include the following contents in step 3：Subject motor is connected with data collector by UVW tri-, number
It is built-in with the potential opposite with U according to collector and extracts circuit, the big resistance connect by 3 " Y " is constituted, and makes resistance loop close to opening
Thus road is simulated the U opposite potential waveforms of the subject motor, is extracted in U opposite potential waveforms to data-analyzing machine.
Wherein, further include the following contents in step 3：Subject motor shaft end is also equipped with rotary transformer, data acquisition
Device is built-in with the rotary transformer exciting signal source for corresponding to rotary transformer, and rotary transformer exciting signal source provides sin
The sinusoidal excitation signal of ω t is to rotary transformer, and the sinusoidal signal sin ω t*sin β for extracting rotary transformer feedback are arrived
In data-analyzing machine.
Further, in the present embodiment, the sinusoidal excitation signal of sin ω t is 7V/10kHz.
Wherein, further include the following contents in step 4：Data-analyzing machine decodes rotary transformer sinusoidal signal, makes amplitude
Zero crossing generates pulse Z signals, and the phase for rising zero crossing to the signal and U opposite potential positive half cycles does real-time calculating, by touching
It touches panel type display and shows calculating angle, by adjusting angles of display weight in rotary transformer stator angle to touch-screen display
It closes, at this point, fixing rotary transformer stator, subject motor initial zero position calibration is completed.
As shown in Figures 3 to 5, operation principle of the invention is, when motor U opposite potential zero passages, by formula
It obtains, U windings magnetic linkage is maximum at this time, and rotor d axis is overlapped with U phase winding axis, which is motor initial zero position.For rotation
Change for depressor, if pumping signal is sin ω t, the angle between rotor and stator is β, then it is sin to export sinusoidal signal
ω t*sin β, cosine signal are sin ω t*cos β；When β is zero, sin ω t*sin β amplitudes are zero, this amplitude zero crossing passes through
It is determined as pulse Z signals after rotary transformer decoding, thus judges that rotation becomes zero-bit, motor zero-bit becomes zero-bit with rotation and overlaps, that is, surveys
Measure motor initial zero position.
Wherein, tri- opposite potentials of data collector acquisition subject motor UVW and rotary transformer sine and cosine output signal,
By data-analyzing machine analyzing processing, the angle between current U phase axis and d axis is calculated, adjusts rotary transformer in real time
Stator angle (i.e. the angles β) makes pulse signal Z become U opposite potential zero crossings with rotation and overlaps.It is converted to above by data-analyzing machine
Angle between motor initial zero position and Z signals is shown by touch-screen display and is read, then adjustment rotary transformer is fixed in real time
Subangle.
In conclusion the present invention is by rack, subject motor in rack and examination motor is accompanied, is tested motor
Coaxially couple with examination motor is accompanied；Subject motor is also associated with data collector, and data collector is connected with data-analyzing machine,
Examination motor is accompanied to be also associated with electric machine controller；Subject three opposite potential of motor and signals of rotating transformer are acquired by data
Device collects analyzing processing in data-analyzing machine, and motor phase and rotary transformer are shown finally by touch-screen display
Zero drift make motor initial zero position and rotary transformer zero-bit weight by adjusting rotary transformer stator angle in real time
It closes so that when motor dispatches from the factory, motor initial zero position can be calibrated, it is easy to operate, it is quick and accurate.
It is above-mentioned only with embodiment come the technology contents that further illustrate the present invention, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of caliberating device of three-phase permanent magnet synchronous motor initial zero position, which is characterized in that including rack, be set to the rack
On subject motor and accompany examination motor, the subject motor tries motor and coaxially couples with accompanying；The subject motor
It is also associated with data collector, the data collector is connected with data-analyzing machine, described that examination motor is accompanied to be also associated with motor
Controller.
2. a kind of caliberating device of three-phase permanent magnet synchronous motor initial zero position according to claim 1, which is characterized in that institute
It states subject motor and accompanies and try to be additionally provided with rapid coupler between motor.
3. a kind of caliberating device of three-phase permanent magnet synchronous motor initial zero position according to claim 1, which is characterized in that institute
It states and accompanies examination motor with counterclockwise, constant speed rotary, and 1/2 that rotating speed is its rated speed.
4. a kind of caliberating device of three-phase permanent magnet synchronous motor initial zero position according to claim 1, which is characterized in that institute
Stating data-analyzing machine and also coupling has touch-screen display.
5. a kind of caliberating device of three-phase permanent magnet synchronous motor initial zero position according to claim 1, which is characterized in that institute
Subject motor is stated to connect with the data collector by UVW three-phases；The subject motor is also built-in with rotary transformer,
The data collector is built-in with the rotary transformer exciting signal source of the corresponding rotary transformer；The rotary transformer
Exciting signal source is used to provide sinusoidal excitation signal to the rotary transformer, and the data collector extracts the rotation transformation
In device sine wave-shaped signal to the data-analyzing machine.
6. a kind of scaling method of three-phase permanent magnet synchronous motor initial zero position, which is characterized in that include the following steps；
Step 1, power-up initializing；
Step 2 accompanies examination motor to drive subject motor rotation with counterclockwise, constant speed；
Step 3, the counter potential waveform of data collector acquisition subject motor and the sine wave-shaped signal of rotary transformer output,
And waveform signal is transmitted to data-analyzing machine；
Step 4, data-analyzing machine converts above-mentioned two waveform signal to digital signal, and does real-time calculating, is shown by touch screen
Device shows above-mentioned waveshape angle, by adjusting rotary transformer stator angle, makes rotary transformer zero and motor U phases
Back-emf zero crossing overlaps, at this point, fixing rotary transformer stator, subject motor initial zero position calibration is completed.
7. a kind of scaling method of three-phase permanent magnet synchronous motor initial zero position according to claim 6, which is characterized in that institute
It states in step 2, described accompany tries the rotating speed of motor as the 1/2 of its rated speed.
8. a kind of scaling method of three-phase permanent magnet synchronous motor initial zero position according to claim 6, which is characterized in that institute
It states in step 3, further includes the following contents：The subject motor is connected with data collector by UVW tri-, the data
Collector is built-in with opposite with U potential extraction circuit, and the big resistance connect by 3 " Y " is constituted, and makes resistance loop close to opening
Thus road is simulated the U opposite potential waveforms of the subject motor, is extracted in U opposite potentials waveform to the data-analyzing machine.
9. a kind of scaling method of three-phase permanent magnet synchronous motor initial zero position according to claim 8, which is characterized in that institute
It states in step 3, further includes the following contents：The subject motor shaft end is also equipped with rotary transformer, in the data collector
It is equipped with the rotary transformer exciting signal source for corresponding to the rotary transformer, the rotary transformer exciting signal source provides
The sinusoidal excitation signal of sin ω t gives the rotary transformer, and the sinusoidal signal for extracting the rotary transformer feedback
In sin ω t*sin β to the data-analyzing machine.
10. a kind of scaling method of three-phase permanent magnet synchronous motor initial zero position according to claim 9, which is characterized in that
Further include the following contents in the step 4：The data-analyzing machine decodes the rotary transformer sinusoidal signal, makes amplitude mistake
Zero generates pulse Z signals, and the phase for rising zero crossing to the signal and U opposite potential positive half cycles does real-time calculating, by touching
Panel type display shows calculating angle, by adjusting angles of display weight in rotary transformer stator angle to touch-screen display
It closes, at this point, fixing rotary transformer stator, subject motor initial zero position calibration is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810235984.XA CN108429493A (en) | 2018-03-21 | 2018-03-21 | A kind of caliberating device and its method of three-phase permanent magnet synchronous motor initial zero position |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235984.XA CN108429493A (en) | 2018-03-21 | 2018-03-21 | A kind of caliberating device and its method of three-phase permanent magnet synchronous motor initial zero position |
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| CN109861594A (en) * | 2018-12-20 | 2019-06-07 | 无锡华宸控制技术有限公司 | A kind of method and device measuring rotor-position deviation |
| CN109995277A (en) * | 2019-03-22 | 2019-07-09 | 联创汽车电子有限公司 | Permanent-magnetic synchronous motor rotor zero-bit initial angle calibration system and its scaling method |
| CN110112963A (en) * | 2019-05-13 | 2019-08-09 | 上海英恒电子有限公司 | Motor position analytic method, device, storage medium and the equipment of rotary transformer |
| CN110601610A (en) * | 2019-09-20 | 2019-12-20 | 潍柴动力股份有限公司 | Method and device for identifying zero offset of permanent magnet synchronous motor and rotary transformer |
| CN110715598A (en) * | 2019-10-22 | 2020-01-21 | 北京动力机械研究所 | Rotary transformer offset detection system and method of rotary transformer |
| CN111162711A (en) * | 2020-03-17 | 2020-05-15 | 深圳熙斯特新能源技术有限公司 | Motor rotor reference zero offset correction method and system |
| CN111239603A (en) * | 2020-01-15 | 2020-06-05 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN113130193A (en) * | 2019-12-30 | 2021-07-16 | 北京新能源汽车股份有限公司 | Permanent magnet synchronous motor rotary transformer and automatic zero setting method thereof |
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| CN113130193A (en) * | 2019-12-30 | 2021-07-16 | 北京新能源汽车股份有限公司 | Permanent magnet synchronous motor rotary transformer and automatic zero setting method thereof |
| CN113130193B (en) * | 2019-12-30 | 2023-10-31 | 北京新能源汽车股份有限公司 | Permanent magnet synchronous motor rotary transformer and automatic zero setting method thereof |
| CN111239603A (en) * | 2020-01-15 | 2020-06-05 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111239603B (en) * | 2020-01-15 | 2022-02-08 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111162711A (en) * | 2020-03-17 | 2020-05-15 | 深圳熙斯特新能源技术有限公司 | Motor rotor reference zero offset correction method and system |
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