CN110034708A - A kind of brshless DC motor and control method of list hall position sensor - Google Patents
A kind of brshless DC motor and control method of list hall position sensor Download PDFInfo
- Publication number
- CN110034708A CN110034708A CN201910367689.4A CN201910367689A CN110034708A CN 110034708 A CN110034708 A CN 110034708A CN 201910367689 A CN201910367689 A CN 201910367689A CN 110034708 A CN110034708 A CN 110034708A
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- China
- Prior art keywords
- hall
- motor
- magnet steel
- pole
- brshless
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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
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Brushless Motors (AREA)
Abstract
The present invention relates to the brshless DC motors and control method of a kind of single hall position sensor, on the basis of conventional brushless DC electric machine structure, each pair of pole Hall magnet steel is carried out six and waits segmentations design, and it is again evenly distributed by polarity, to simplify the control method for brushless direct current motor of single hall position sensor.Compared with the brshless DC motor of 3 traditional Hall sensors, the present invention uses the brushless DC motor structure of single hall position sensor, the weight of electric system is advantageously reduced, while the quantity for inhibiting the photo-coupler of common mode interference between Hall sensor and CPU can be reduced.Compared with the brshless DC motor of no Hall sensor, the present invention combines corresponding motor control method using single Hall sensor, rotor position information can more be accurately positioned, and algorithm is simple, save the resource of CPU.In addition, the present invention can guarantee reliable speed regulation of the brshless DC motor in revolving speed section.
Description
Technical field
The invention belongs to the brshless DC motors of single hall position sensor, are related to a kind of nothing of single hall position sensor
Brushless motor and control method
Background technique
Brshless DC motor inherits the good speed adjusting performance of brushed DC motor, and fricton-tight contact and commutation fire
Flower has high reliablity, long service life and low noise advantages, in advanced electronic device, aerospace, numerical control device, machine
The high-technology fields such as device people, electric car, household electrical appliance are applied widely.It obtains rotor-position and is to ensure that three-phase brushless
The key of direct current generator safe operation, current main method, which has, installs 3 Hall sensor detection rotor positions at stator core
Method is set, and without Hall sensor rotor position detecting method.The former is easy the reliability to brshless DC motor, manufacture work
Skill etc. brings adverse effect, and the latter then needs to increase additional complicated algorithm to obtain rotor-position, and detection accuracy is by electricity
Machine parameter is affected.
Summary of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of brushless dc of single hall position sensor
Machine and control method control operation mechanism point by six states in brshless DC motor list electrical angle period (360 ° of electrical angles)
Analysis, designs a kind of brshless DC motor with new Hall magnetic steel structure, and propose brushless dc under single Hall sensor
The control method of machine realizes brshless DC motor stable operation under single hall position sensor.
Technical solution
A kind of brshless DC motor of list hall position sensor, including shaft, stator, Hall magnet steel, Hall sensor
And drive control circuit；It is characterized by: each pair of pole Hall magnet steel is divided into 3 pole N magnet steel and 3 pole S magnet steel, segmentation
Where the pole N of preceding each pair of pole Hall magnet steel on spatial position, the polar alignment of the Hall magnet steel after segmentation is " N-S-N "；Dividing
Before cutting where the pole S of each pair of pole Hall magnet steel on spatial position, the polar alignment of Hall magnet steel is " S-N-S " after segmentation；It is described
Whole Hall magnet steel carry out being uniformly distributed arrangement on 360 ° of spatial positions.
A kind of control method of the brshless DC motor of single hall position sensor, it is characterised in that steps are as follows:
Step 1: under the conditions of underloading, a winding group is arbitrarily selected in winding combination { AB, AC, BC, BA, CA, CB }
It closes, 5% or more voltage pulse signal of Rated motor voltage is passed to, thus the initial position of positioning motor rotor；It should be around
Group combination electricity charged, on this basis, according to { AB → AC → BC → BA → CA → CB → AB } winding combination sequence, to it is next around
Group combination passes to the voltage pulse signal of identical amplitude, completes the initial alignment of rotor-position；
Step 2: on the basis of step 1 last rotor-position, according to { AB → AC → BC → BA → CA → CB → AB } around
Group built-up sequence, control power switch tube meets the voltage of expectation revolving speed to the output of next winding combination, so that the rotor of motor
It is rotated, and controls power switch tube according to predetermined order AB → AC → BC → BA → CA → CB → AB hereafter, finally made
Obtaining motor can be run with desired stabilization of speed.
Beneficial effect
The brshless DC motor and control method of a kind of single hall position sensor proposed by the present invention are straight in conventional brush-less
In galvanic electricity machine structure basis, each pair of pole Hall magnet steel is carried out six and waits segmentations design, and is again evenly distributed by polarity, to letter
Change the control method for brushless direct current motor of single hall position sensor.With the brshless DC motor phase of 3 traditional Hall sensors
Than the present invention advantageously reduces the weight of electric system, simultaneously using the brushless DC motor structure of single hall position sensor
The quantity for inhibiting the photo-coupler of common mode interference between Hall sensor and CPU can be reduced.It is brushless with no Hall sensor
Direct current generator is compared, and the present invention combines corresponding motor control method using single Hall sensor, can be more accurately positioned and be turned
Sub- location information, and algorithm is simple, saves the resource of CPU.In addition, the present invention can guarantee brshless DC motor in revolving speed section
Interior reliable speed regulation.
Detailed description of the invention
Fig. 1 is the brshless DC motor (longitudinal section view) and its drive control electricity of 2 pairs of three hall position sensors of pole band
Road；
In figure, 1. stator yokes, 2. stator teeths, 3. Hall magnet steel, 4. shafts, 5. Hall sensors (360 ° of mechanical angles
There are 3 in degree).
Fig. 2 is the brshless DC motor (longitudinal section view) and its drive control electricity of 2 pairs of pole band list hall position sensors
Road；
In figure, 6. stator yokes, 7. stator teeths, 8. Hall magnet steel, 9. shafts, 10. Hall sensors (360 ° of mechanical angles
There are 1 in degree).
Fig. 3 is the control method for brushless direct current motor flow chart of the single hall position sensor of present invention application.
Fig. 4 is the predetermined turn-on sequence of power switch tube (360 ° of electric angles of brshless DC motor drive control circuit of the present invention
Spend the period).
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
The present invention is that stable operation is connected by six power switch tubes in single electrical angle period of three-phase brushless dc motor
State is completed, and six switching tube on states is embodied by each pair of pole Hall sensor magnet steel of brshless DC motor, Ji Ketong
Six equal segmentations designs of each pair of pole Hall magnet steel are crossed to realize single Hall sensor position detection of brshless DC motor, thus
Guarantee the weight for reducing position detection structure while position detection accuracy.By corresponding motor control method, electricity is reduced
The complexity of machine control algolithm saves the resource of CPU.
Former brushless DC motor structure (longitudinal section view) is as shown in Figure 1.Former 3 number of pole-pairs of brshless DC motor Hall magnet steel
It is that there are 3 Hall sensors 5 in 2,360 ° of mechanical angles.The Hall magnet steel 3 of former each pair of pole is uniformly divided into 6 parts of designs, i.e.,
There are 6 pairs of Hall magnet steel 8 in brushless DC motor structure after segmentation design, the volume of each Hall magnet steel 8 is former Hall magnet steel 3
1/3.
Hall magnet steel 8 after segmentation design is pressed into polar alignment.In step 1.1 suddenly by each pair of pole of former brshless DC motor
Your magnet steel 3 carries out 6 and waits segmentations design, i.e., former each pair of pole is divided into 3 pole N magnet steel and 3 pole S magnet steel after segmentation design.?
Before segmentation designs where the pole N of each pair of pole Hall magnet steel on spatial position, the Hall magnet steel 8 after segmentation design is subjected to " N-S-
N " polar alignment；Before segmentation designs where the pole S of each pair of pole Hall magnet steel on spatial position, by the Hall magnetic after segmentation design
Steel 8 carries out " S-N-S " polar alignment.Finally, whole Hall magnet steel are carried out to be uniformly distributed arrangement on 360 ° of spatial positions.Point
The Hall magnet steel 8 for cutting design is completed after arranging, and brushless DC motor structure (longitudinal section view) is as shown in Figure 2.
The control method for brushless direct current motor of a kind of application list hall position sensor of the invention, specifically according to following step
It is rapid to implement:
Step 1: brshless DC motor is A, B, C around group number.The nothing of the single hall position sensor of application according to Fig.3,
Brushless motor control method flow chart powers under the conditions of underloading to brushless DC motor system, winding combination AB,
AC, BC, BA, CA, CB } in select the first winding combination AB, pass to amplitude it is sufficiently large (such as Rated motor voltage be 220V, pass to
10V or more) voltage pulse signal, thus the initial position of positioning motor rotor.In order to ensure initial position of rotor positioning
Success, then according to { AB → AC → BC → BA → CA → CB → AB } winding combination sequence, is given on the basis of positioning first time
Next group of winding combination AC (the second winding combination) passes to the voltage pulse signal of identical amplitude, and motor presses up time as shown in Figure 2
Needle rotation, is finally completed the initial alignment of rotor-position.
Step 2: starting brushless direct current generator.Motor drive controller is on the basis of the rotor-position that step 2.1 obtains, root
According to { AB → AC → BC → BA → CA → CB → AB } winding combination sequence, control power switch tube gives next winding combination BC
(tertiary winding combination) output meets the voltage of expectation revolving speed, and the rotor of motor is enabled to continue rotation clockwise with certain revolving speed
Turn, and control power switch tube according to predetermined order AB → AC → BC → BA → CA → CB as shown in Figure 4 → AB hereafter, most
Motor is enabled to run with desired stabilization of speed eventually.
Claims (2)
1. it is a kind of list hall position sensor brshless DC motor, including shaft, stator, Hall magnet steel, Hall sensor and
Drive control circuit；It is characterized by: each pair of pole Hall magnet steel is divided into 3 pole N magnet steel and 3 pole S magnet steel, before segmentation
Where the pole N of each pair of pole Hall magnet steel on spatial position, the polar alignment of the Hall magnet steel after segmentation is " N-S-N "；Dividing
Where the pole S of preceding each pair of pole Hall magnet steel on spatial position, the polar alignment of Hall magnet steel is " S-N-S " after segmentation；It is described complete
Portion's Hall magnet steel carries out being uniformly distributed arrangement on 360 ° of spatial positions.
2. the control method of the brshless DC motor of list hall position sensor described in a kind of claim 1, it is characterised in that step
It is rapid as follows:
Step 1: under the conditions of underloading, a winding combination is arbitrarily selected in winding combination { AB, AC, BC, BA, CA, CB }, is led to
With 5% or more voltage pulse signal of Rated motor voltage, thus the initial position of positioning motor rotor；The winding combination
Electricity charged according to { AB → AC → BC → BA → CA → CB → AB } winding combination sequence, gives next winding combination on this basis
The voltage pulse signal for passing to identical amplitude completes the initial alignment of rotor-position；
Step 2: on the basis of step 1 last rotor-position, according to { AB → AC → BC → BA → CA → CB → AB } winding group
Conjunction sequence, control power switch tube meets the voltage of expectation revolving speed to the output of next winding combination, so that the rotor of motor carries out
Rotation, and power switch tube is controlled according to predetermined order AB → AC → BC → BA → CA → CB → AB hereafter, finally make electricity
Machine can be run with desired stabilization of speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367689.4A CN110034708A (en) | 2019-05-05 | 2019-05-05 | A kind of brshless DC motor and control method of list hall position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367689.4A CN110034708A (en) | 2019-05-05 | 2019-05-05 | A kind of brshless DC motor and control method of list hall position sensor |
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| CN110034708A true CN110034708A (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910367689.4A Pending CN110034708A (en) | 2019-05-05 | 2019-05-05 | A kind of brshless DC motor and control method of list hall position sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346800A (en) * | 2021-06-26 | 2021-09-03 | 陕西航空电气有限责任公司 | Rotor position detection method suitable for brushless direct current motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082535A (en) * | 2009-11-27 | 2011-06-01 | 中国科学院沈阳自动化研究所 | Brushless direct current motor speed detector based on hall element and control method thereof |
| CN201918945U (en) * | 2011-01-25 | 2011-08-03 | 深圳市博巨兴实业发展有限公司 | Single-Hall control device for direct-current brushless motor |
| CN105811815A (en) * | 2014-12-27 | 2016-07-27 | 中山大洋电机股份有限公司 | Pulse feedback output control method of BLDC motor and air conditioning system with application of method |
| CN207421455U (en) * | 2017-08-02 | 2018-05-29 | 上海汉华水处理工程有限公司 | Motor-driven valve control mechanism based on the sensing of single Hall element |
| WO2019159311A1 (en) * | 2018-02-16 | 2019-08-22 | 株式会社五十嵐電機製作所 | Control device for dc motor |
-
2019
- 2019-05-05 CN CN201910367689.4A patent/CN110034708A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082535A (en) * | 2009-11-27 | 2011-06-01 | 中国科学院沈阳自动化研究所 | Brushless direct current motor speed detector based on hall element and control method thereof |
| CN201918945U (en) * | 2011-01-25 | 2011-08-03 | 深圳市博巨兴实业发展有限公司 | Single-Hall control device for direct-current brushless motor |
| CN105811815A (en) * | 2014-12-27 | 2016-07-27 | 中山大洋电机股份有限公司 | Pulse feedback output control method of BLDC motor and air conditioning system with application of method |
| CN207421455U (en) * | 2017-08-02 | 2018-05-29 | 上海汉华水处理工程有限公司 | Motor-driven valve control mechanism based on the sensing of single Hall element |
| WO2019159311A1 (en) * | 2018-02-16 | 2019-08-22 | 株式会社五十嵐電機製作所 | Control device for dc motor |
Non-Patent Citations (1)
| Title |
|---|
| 无位置传感器永磁无刷直流电机控制***的设计: "马莹", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346800A (en) * | 2021-06-26 | 2021-09-03 | 陕西航空电气有限责任公司 | Rotor position detection method suitable for brushless direct current motor |
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Application publication date: 20190719 |