CN108988705A - Brshless DC motor postpones turn-on angle control method - Google Patents
Brshless DC motor postpones turn-on angle control method Download PDFInfo
- Publication number
- CN108988705A CN108988705A CN201810918401.3A CN201810918401A CN108988705A CN 108988705 A CN108988705 A CN 108988705A CN 201810918401 A CN201810918401 A CN 201810918401A CN 108988705 A CN108988705 A CN 108988705A
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- CN
- China
- Prior art keywords
- commutation
- brshless
- phase
- motor
- electric current
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
-
- 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
- H02P6/15—Controlling commutation time
Abstract
The invention discloses a kind of brshless DC motors to postpone turn-on angle control method, and the determining method is: running brshless DC motor low-speed stable；It determines non-commutation phase X when brshless DC motor commutation and opens phase Y；Electric current Ia before recording non-commutation phase X commutation；Record electric current Ib when non-commutation phase X commutation；The electric current Ia is subtracted into the electric current Ib, obtains current deviation Δ I；Current deviation Δ I progress PI operation is obtained into delay turn-on angle θ；In subsequent commutation process, delay θ angle is gone open-minded again when control opens phase Y from commutation starting position, achievees the purpose that control brshless DC motor low-speed torque ripple.
Description
Technical field
The invention belongs to brshless DC motor control field, it is related to a kind of brshless DC motor, more particularly to a kind of brushless
Direct current generator postpones turn-on angle control method.
Background technique
Brshless DC motor has many advantages, such as structure is simple, power density is high, control is simple.In recent years, brushless straight
Galvanic electricity machine has obtained increasingly extensive application in the industrial circles such as high-performance speed-regulating system and servo-control system.
The commutation torque ripple generated when brshless DC motor commutation, can cause motor vibrating, noise, limit such electricity
The application range of machine.By taking 120 ° of brshless DC motor conductings, three phase six state controls as an example, the brshless DC motor of low speed operation
When commutation, Non-commutation phase current can change, and this generates commutation torque ripple, return the reason is that opening phase
Electric current rises too fast, so going again open-minded by making to open phase retardation certain angle, is conducive to reduce non-commutation phase before and after commutation
The pulsation of electric current achievees the purpose that control brshless DC motor low speed commutation torque ripple.This case be based on this thinking and
It is formed.
Summary of the invention
The purpose of the present invention is to provide a kind of brshless DC motor delay turn-on angle control method, after determination
Postpone turn-on angle, makes to open phase retardation certain angle and go again open-minded, reach control brshless DC motor low speed commutation torque ripple
Purpose.
In order to achieve the above objectives, solution of the invention is:
A kind of brshless DC motor delay turn-on angle control method, includes the following steps:
Step 1: making brshless DC motor stable operation；
Step 2: determining non-commutation phase X of the brshless DC motor in commutation process and opening phase Y；
Step 3: recording the electric current Ia before non-commutation phase X commutation；
Step 4: recording electric current Ib when non-commutation phase X commutation；
Step 5: the electric current Ia is subtracted the electric current Ib, current deviation Δ I is obtained；
Step 6: current deviation Δ I progress PI operation is obtained delay turn-on angle θ；
Step 7: control is described to open capable again after phase Y postpones θ angle from commutation starting position open in subsequent commutation process
It is logical.
After adopting the above scheme, the determination brshless DC motor that the present invention can be simple and effective postpones turn-on angle, thus favorably
In the control of brshless DC motor commutation torque ripple.
Detailed description of the invention
Fig. 1 is the flow chart present invention determine that method.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention and beneficial effect are described in detail.
As shown in Figure 1, the present invention provides a kind of brshless DC motor delay turn-on angle control method, include the following steps:
Step 1: running brshless DC motor low-speed stable；
Step 2: determining non-commutation phase X of the brshless DC motor in commutation process and opening phase Y；
Step 3: recording the electric current Ia before non-commutation phase X commutation；
Step 4: recording electric current Ib when non-commutation phase X commutation；
Step 5: the electric current Ia is subtracted the electric current Ib, current deviation Δ I is obtained；
Step 6: current deviation Δ I progress PI operation is obtained delay turn-on angle θ；
Step 7: control is described to open capable again after phase Y postpones θ angle from commutation starting position open in subsequent commutation process
It is logical.
To sum up, brshless DC motor of the present invention postpones turn-on angle control method, non-when according to brshless DC motor commutation to change
The variation of phase phase current, delay turn-on angle needed for phase is opened in simple and effective determination are conducive to brshless DC motor commutation and turn
The control of square pulsation.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within.
Claims (1)
1. a kind of brshless DC motor postpones turn-on angle control method, which comprises the steps of:
Step 1: making brshless DC motor stable operation；
Step 2: determining non-commutation phase X of the brshless DC motor in commutation process and opening phase Y；
Step 3: recording the electric current Ia before non-commutation phase X commutation；
Step 4: recording electric current Ib when non-commutation phase X commutation；
Step 5: the electric current Ia is subtracted the electric current Ib, current deviation Δ I is obtained；
Step 6: current deviation Δ I progress PI operation is obtained delay turn-on angle θ；
Step 7: in subsequent commutation process, control it is described open go again after phase Y postpones θ angle from commutation starting position it is open-minded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918401.3A CN108988705A (en) | 2018-08-13 | 2018-08-13 | Brshless DC motor postpones turn-on angle control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918401.3A CN108988705A (en) | 2018-08-13 | 2018-08-13 | Brshless DC motor postpones turn-on angle control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108988705A true CN108988705A (en) | 2018-12-11 |
Family
ID=64552358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810918401.3A Withdrawn CN108988705A (en) | 2018-08-13 | 2018-08-13 | Brshless DC motor postpones turn-on angle control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108988705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113572390A (en) * | 2021-05-07 | 2021-10-29 | 联合汽车电子有限公司 | Driving method for noise suppression of brushless direct current motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154907A (en) * | 2007-08-21 | 2008-04-02 | 南京航空航天大学 | Correction method for position signal phase error of brushless DC motor without position sensor |
| CN106602941A (en) * | 2016-12-06 | 2017-04-26 | 南京邮电大学 | Control device and method for reducing commutation torque ripple of brushless direct-current motor |
| CN106655911A (en) * | 2016-09-30 | 2017-05-10 | 天津大学 | PWM (Pulse Width Modulation) method for suppressing commutation torque ripples of brushless DC motor |
| CN107749725A (en) * | 2017-10-20 | 2018-03-02 | 哈尔滨工程大学 | A kind of commutation bearing calibration of position-sensor-free DC brushless motor |
-
2018
- 2018-08-13 CN CN201810918401.3A patent/CN108988705A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154907A (en) * | 2007-08-21 | 2008-04-02 | 南京航空航天大学 | Correction method for position signal phase error of brushless DC motor without position sensor |
| CN106655911A (en) * | 2016-09-30 | 2017-05-10 | 天津大学 | PWM (Pulse Width Modulation) method for suppressing commutation torque ripples of brushless DC motor |
| CN106602941A (en) * | 2016-12-06 | 2017-04-26 | 南京邮电大学 | Control device and method for reducing commutation torque ripple of brushless direct-current motor |
| CN107749725A (en) * | 2017-10-20 | 2018-03-02 | 哈尔滨工程大学 | A kind of commutation bearing calibration of position-sensor-free DC brushless motor |
Non-Patent Citations (1)
| Title |
|---|
| 王晓锋: "无刷直流电机换相转矩脉动抑制策略的探讨研究", 《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 |
|---|---|---|---|---|
| CN113572390A (en) * | 2021-05-07 | 2021-10-29 | 联合汽车电子有限公司 | Driving method for noise suppression of brushless direct current motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181211 |
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| WW01 | Invention patent application withdrawn after publication |