CN107167735A - Motor Zero positioning system and method - Google Patents
Motor Zero positioning system and method Download PDFInfo
- Publication number
- CN107167735A CN107167735A CN201710601753.1A CN201710601753A CN107167735A CN 107167735 A CN107167735 A CN 107167735A CN 201710601753 A CN201710601753 A CN 201710601753A CN 107167735 A CN107167735 A CN 107167735A
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- zero positioning
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Present invention is disclosed a kind of motor Zero positioning system, first dc source is powered for tested motor, the output shaft of the tested motor and position sensor rigid attachment, the angle signal of position sensor output tested motor is to signal processing module, system is provided with the Standard Machine for being used for driving tested motor uniform rotation, the Standard Machine and the output shaft of tested motor are connected, the output shaft of the Standard Machine is provided with torque sensor, the torque sensor output torque signal to signal processing module.The present invention is used for the Zero positioning of oil-cooled motor, it particularly can apply to hybrid vehicle integrated type oil-cooling motor, rotor is positioned at the minimum position of stress different from traditional Zero positioning process, it is easily caused positioning inaccurate, simulated machine Field orientable control practical work process of the present invention, the position maximum by recognizing rotor stress, can avoid influence of the cooling oil to Zero positioning precision, realize accurately and efficiently Zero positioning.
Description
Technical field
The present invention relates to automobile drive electric motor technical field, a kind of integrated type oil-cooling motor Zero positioning side is related specifically to
Method.
Background technology
At present the motor type applied to new-energy automobile have alternating current asynchronous induction machine, it is permagnetic synchronous motor, straight
Motor, DC brushless motor etc. are flowed, wherein, permagnetic synchronous motor is because with big specific of efficiency high, power density, use model
Enclose the most extensive.
Control permagnetic synchronous motor relative complex, most commonly vector controlled, i.e. Field orientable control.This controlling party
Formula is, it is necessary to accurately obtain the actual angle of rotor.In practical application, the rotor position that the angular position pick up of motor is detected
Put and generally there is a deviation between actual rotor field position, the Zero positioning process of motor seeks to find this
Deviation.
The Zero positioning method typically used at present, is to be passed to a dc source to the stator winding of motor less than volume
Determine the direct current of electric current, rotor navigated into an equilbrium position, be typically magnetic field force induced minimum position.For oil
Cool electric machine, due to there is the factors such as the viscosity of cooling oil, the orientation angle of rotor is easily and point of theory has deviation, so that
The determination of relative angle between the rotor-position that detects of influence angular position pick up and actual rotor magnetic field, and then influence whether
The performance of motor.
The content of the invention
The technical problems to be solved by the invention are to realize a kind of to be suitable for oil cooling permagnetic synchronous motor Zero positioning
System and method.
To achieve these goals, the technical solution adopted by the present invention is：Motor Zero positioning system, the first dc source
Powered for tested motor, output shaft and the position sensor rigid attachment of the tested motor, the position sensor export quilt
The angle signal of measured motor is to signal processing module, and system is provided with the Standard Machine for being used for driving tested motor uniform rotation, described
Standard Machine and the output shaft of tested motor are connected, and the output shaft of the Standard Machine is provided with torque sensor, and the moment of torsion is passed
Sensor output torque signal is to signal processing module.
The Standard Machine is standard electromotor or dynamometer machine.
The Standard Machine is powered through drive module by the second dc source.
The signal processing module outputs signal to data memory module storage.
The tested motor is the power motor of hybrid vehicle.
Scaling method based on the motor Zero positioning system：
Step 1, the first dc source lead to the electric current of 2/3 nominal current magnitude to tested motor；
Step 2, the second dc source are powered to drive module, and drive module is that Standard Machine exports three-phase current, Standard Machine
Drive tested motor uniform rotation；
Step 3, position sensor and torque sensor obtain signal, and the maximum position angle of moment of torsion is designated as θ 1, with moment of torsion
The corresponding position angle of maximum position is designated as θ 2；
Step 4, the difference for taking θ 1 and θ 2, are designated as Δ θ；
Step 5, the permission threshold value of note motor zero-bit are α , Ruo ∣ Δs θ ∣≤α, are considered as effectively, carry out next step；Ruo ∣ Δs θ
∣ >=α, then be considered as wrong, the repeat step 1- steps 4 of operation, if still Chu Xian ∣ Δs θ ∣ >=α, is considered as tested motor presence and asks
Topic, is judged as marking zero failure；
Step 6, Δ θ are calculated as the zero-bit of motor.
Repeat step 1-5 more than tri- times, obtains Δ θ average value, is designated as β, is used as the zero-bit of motor.
Before the step 1 starts, lead to the electric current of 2/3 nominal current magnitude to tested motor by the first dc source, treat
After the stationary rotor of tested motor, stirred by external force after removing external force after tested motor armature spindle to another electrical angle position
Afterwards, whether observation rotor can rotate to position static first again.
The present invention is used for the Zero positioning of oil-cooled motor, particularly can apply to hybrid vehicle integrated type oil-cooling electricity
Machine, is positioned at the minimum position of stress by rotor different from traditional Zero positioning process, is easily caused and positions inaccurate, sheet
Invention simulated machine Field orientable control practical work process, the position maximum by recognizing rotor stress, can be avoided cold
But influence of the oil to Zero positioning precision, realizes accurately and efficiently Zero positioning.
Brief description of the drawings
The mark in the content and figure of every width accompanying drawing expression in description of the invention is briefly described below：
Fig. 1 is motor Zero positioning system architecture diagram；
Fig. 2 is motor Zero positioning method flow chart；
Mark in above-mentioned figure is：1st, tested motor；2nd, position sensor；3rd, torque sensor；4th, Standard Machine；5th, drive
Dynamic model block；6th, signal processing module；7th, data memory module；8th, the first dc source；9th, the second dc source.
Embodiment
As shown in figure 1, Standard Machine 4 and the output shaft of tested motor 1 are connected by motor Zero positioning system, Standard Machine 4
It is general to use standard electromotor or dynamometer machine, motor position sensor 2 and the axle rigid attachment of tested motor 1, motor position sensor 2
For the angle signal of output motor rotor, the connecting mode and position angle of tested motor 1 and position sensor 2 should and it is actual
Installation situation is consistent, can be firm by use demand connection by tested motor 1 and position sensor 2, is used as an entirety to carry out
Zero positioning.
The output shaft of Standard Machine 4 is provided with torque sensor 3, the actual torsion that torductor is used on measurement motor axle
Square, Standard Machine 4 is used to drive the uniform rotation of tested motor 1, and signal processing module 6 is used to receive motor position sensor 2 and torsion
The signal of the feedback of square sensor 3 is simultaneously handled, and data memory module 7 is used to store zero message.
Dc source produces two-phase voltage, exports to tested motor 1, rotor is in stator field by electromagnetic force.Quilt
Measured motor 1 at the uniform velocity rotates under standard electromotor/dynamometer machine driving.Torductor and position sensor 2 feed back armature spindle respectively
Stressing conditions and the rotor actual position signal of tested motor 1 are to signal processing module 6, and signal processing module 6 is with torque signal
On the basis of crest, the phase difference value of torque signal and the signal of position sensor 2 is calculated, and remember the value as the zero-bit of motor
Record in data memory module 7.
Based on above-mentioned motor Zero positioning system, scaling method as shown in Figure 2 is as follows：
Lead to the electric current of 2/3 nominal current magnitude to tested motor 1 by the first dc source 8, electric current enters from A phases, B phases
Go out, now, the stator of tested motor 1 can produce the magnetic field of orientation, and the rotor of tested motor 1 is in the presence of the magnetic field force, along rotor
Axial line produces rotary motion, can rotate in theory to the position of -30 ° of electrical angles, after after stationary rotor, is stirred and turned by external force
Sub- axle is removed after external force to another angle position, and whether observation rotor can rotate to position static first again；
After performing following steps after rotor stress balance：
Step 1, the first dc source 8 continue to lead to the electric current of 2/3 nominal current magnitude to tested motor 1；
Step 2, the second dc source 9 are powered to drive module 5, and drive module 5 is that Standard Machine 4 exports three-phase current, mark
Quasi- machine 4 uses rotating speed control mode, drives the uniform rotation of tested motor 1；；
Step 3, after after the stability of rotation of tested motor 1, motor position sensor 2 and torductor gather motor and turned respectively
Torque signal on the angle signal and armature spindle of son, and above-mentioned signal is fed back in signal processing module 6, signal transacting mould
Block 6 is handled the torque signal on the angle signal and armature spindle of rotor, the maximum position of the moment of torsion on armature spindle,
That is the crest of torque signal, the position angle of appearance is designated as θ 1, and (definition for aligning negative torque by torductor is different, torque ripple
Peak phase appears in -120 ° or 60 ° of electrical angle positions)；Position (the ripple corresponding with torque signal crest location is recorded simultaneously
Paddy position) sensor signal, the angle is designated as θ 2；
Step 4, the difference for taking θ 1 and θ 2, are designated as Δ θ, i.e. Δ θ=θ 2- θ 1；
Step 5, the permission threshold value of note motor zero-bit are α , Ruo ∣ Δs θ ∣≤α, are considered as effectively, carry out next step；Ruo ∣ Δs θ
∣ >=α, then be considered as wrong, the 1~step 4 of repeat step of operation, if still Chu Xian ∣ Δs θ ∣ >=α, is considered as the presence of tested motor 1 and asks
Topic, is judged as marking zero failure；
Step 6, repetition above step 3 times, take 3 Δ θ average value, are designated as β, as the zero-bit of motor, and recorded
In data memory module 7.When motor works, signals of rotating transformer is read, and is corrected with angle compensation value β, is realized accurate
Field orientable control.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (8)
1. motor Zero positioning system, the first dc source is powered for tested motor, the output shaft of the tested motor and position
Sensor rigid couples, the angle signal of position sensor output tested motor to signal processing module, it is characterised in that：
System, which is provided with, is used to driving the Standard Machine of tested motor uniform rotation, and the output shaft of the Standard Machine and tested motor is connected,
The output shaft of the Standard Machine is provided with torque sensor, the torque sensor output torque signal to signal processing module.
2. motor Zero positioning system according to claim 1, it is characterised in that：The Standard Machine is standard electromotor or survey
Work(machine.
3. motor Zero positioning system according to claim 2, it is characterised in that：The Standard Machine is through drive module by
Two dc sources are powered.
4. motor Zero positioning system according to claim 3, it is characterised in that：The signal processing module output signal
To data memory module storage.
5. the motor Zero positioning system according to claim 1,2,3 or 4, it is characterised in that：The tested motor is mixed
Close the power motor of power vehicle.
6. the scaling method based on motor Zero positioning system any one of claim 1-5, it is characterised in that：
Step 1, the first dc source lead to the electric current of 2/3 nominal current magnitude to tested motor；
Step 2, the second dc source are powered to drive module, and drive module is that Standard Machine exports three-phase current, Standard Machine driving
Tested motor uniform rotation；
Step 3, position sensor and torque sensor obtain signal, and the maximum position angle of moment of torsion is designated as θ 1, maximum with moment of torsion
Position corresponding angle is designated as θ 2；
Step 4, the difference for taking θ 1 and θ 2, are designated as Δ θ；
Step 5, the permission threshold value of note motor zero-bit are α , Ruo ∣ Δs θ ∣≤α, are considered as effectively, carry out next step；Ruo ∣ Δ θ ∣ >=
α, then be considered as wrong, the repeat step 1- steps 4 of operation, if still Chu Xian ∣ Δs θ ∣ >=α, is considered as tested motor and there is problem, sentence
Break to mark zero failure；
Step 6, Δ θ are calculated as the zero-bit of motor.
7. scaling method according to claim 6, it is characterised in that：Repeat step 1-5 more than tri- times, obtains the flat of Δ θ
Average, is designated as β, is used as the zero-bit of motor.
8. scaling method according to claim 6, it is characterised in that：Before the step 1 starts, pass through the first dc source
Lead to the electric current of 2/3 nominal current magnitude to tested motor, tested electricity is treated after after the stationary rotor of tested motor, being stirred by external force
Removed behind machine rotor axle to another electrical angle position after external force, whether observation rotor can rotate to position static first again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601753.1A CN107167735A (en) | 2017-07-21 | 2017-07-21 | Motor Zero positioning system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601753.1A CN107167735A (en) | 2017-07-21 | 2017-07-21 | Motor Zero positioning system and method |
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| CN107167735A true CN107167735A (en) | 2017-09-15 |
Family
ID=59817366
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| CN201710601753.1A Pending CN107167735A (en) | 2017-07-21 | 2017-07-21 | Motor Zero positioning system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413999A (en) * | 2018-03-09 | 2018-08-17 | 浙江赛安电气科技有限公司 | A kind of permanent magnet synchronous motor magnetic compiles zero detector and its method |
| CN109765518A (en) * | 2018-12-29 | 2019-05-17 | 中国科学院合肥物质科学研究院 | A kind of Power Vehicle power calibration platform |
| CN109799016A (en) * | 2018-12-21 | 2019-05-24 | 东南大学 | A kind of direct current generator output torque caliberating device |
| CN112532139A (en) * | 2020-12-16 | 2021-03-19 | 浙江方正电机股份有限公司 | Self-calibration method for initial angle of rotary transformer zero position of permanent magnet synchronous motor |
| CN112713836A (en) * | 2020-11-25 | 2021-04-27 | 东风汽车集团有限公司 | Motor zero calibration device and method |
| CN113108749A (en) * | 2021-05-20 | 2021-07-13 | 中国第一汽车股份有限公司 | Phase angle calibration method and device of dual-motor hybrid power system and vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413999A (en) * | 2018-03-09 | 2018-08-17 | 浙江赛安电气科技有限公司 | A kind of permanent magnet synchronous motor magnetic compiles zero detector and its method |
| CN109799016A (en) * | 2018-12-21 | 2019-05-24 | 东南大学 | A kind of direct current generator output torque caliberating device |
| CN109765518A (en) * | 2018-12-29 | 2019-05-17 | 中国科学院合肥物质科学研究院 | A kind of Power Vehicle power calibration platform |
| CN112713836A (en) * | 2020-11-25 | 2021-04-27 | 东风汽车集团有限公司 | Motor zero calibration device and method |
| CN112532139A (en) * | 2020-12-16 | 2021-03-19 | 浙江方正电机股份有限公司 | Self-calibration method for initial angle of rotary transformer zero position of permanent magnet synchronous motor |
| CN113108749A (en) * | 2021-05-20 | 2021-07-13 | 中国第一汽车股份有限公司 | Phase angle calibration method and device of dual-motor hybrid power system and vehicle |
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Application publication date: 20170915 |