CN109039172A - A kind of brshless DC motor shutdown phase control method - Google Patents
A kind of brshless DC motor shutdown phase control method Download PDFInfo
- Publication number
- CN109039172A CN109039172A CN201810917151.1A CN201810917151A CN109039172A CN 109039172 A CN109039172 A CN 109039172A CN 201810917151 A CN201810917151 A CN 201810917151A CN 109039172 A CN109039172 A CN 109039172A
- Authority
- CN
- China
- Prior art keywords
- brshless
- motor
- absolute value
- commutation
- commutation process
- Prior art date
- 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.)
- Withdrawn
Links
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
- H02P6/14—Electronic commutators
-
- 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
Abstract
The invention discloses a kind of brshless DC motors to turn off phase control method, and the control method is: determining the three-phase full-bridge inverter switch-off power pipe in brshless DC motor commutation process；Brshless DC motor revolving speed Sa before record commutation；Record brshless DC motor revolving speed Sb in commutation process；If the absolute value that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value, three-phase full-bridge inverter switch-off power pipe is opened；If the absolute value that Sa subtracts Sb in commutation process is not more than the 5% of Sa absolute value, three-phase full-bridge inverter switch-off power pipe is turned off；Achieve the purpose that weaken brshless DC motor high speed commutation 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 turns off phase 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 high-speed cruising
When commutation, the current changing rate for turning off phase is excessive, returns the reason is that shutdown phase is electric in brshless DC motor commutation process
Stream does not add control, and this generates commutation torque ripples.So far, the shutdown phase control in brshless DC motor commutation process
The research of technology is very few, and the present patent application technology is not yet seen in report.
Summary of the invention
The purpose of the present invention is to provide a kind of brshless DC motor shutdown phase control method, can weaken brushless direct-current
Motor high speed commutation torque ripple.
In order to achieve the above objectives, solution of the invention is:
A kind of brshless DC motor shutdown phase control method, includes the following steps:
Step 1: determining the switch-off power pipe in brshless DC motor commutation process in three-phase full-bridge inverter；
Step 2: brshless DC motor revolving speed Sa before record commutation；
Step 3: brshless DC motor revolving speed Sb in record commutation process；
Step 4: whether the absolute value for judging that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value；
Step 5: opening three phase full bridge inversion if the absolute value that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value
Switch-off power pipe in device；
Step 6: it is inverse to turn off three phase full bridge if the absolute value that Sa subtracts Sb in commutation process is not more than the 5% of Sa absolute value
Become the switch-off power pipe in device；
Step 7: step 4 is repeated, until commutation process terminates.
After adopting the above scheme, the present invention can control the shutdown phase current in brshless DC motor commutation process, to reach
To the effect for weakening brshless DC motor high speed commutation torque ripple.
Detailed description of the invention
Fig. 1 is the flow chart of control method of the present invention.
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 shutdown phase control method, include the following steps:
Step 1: determining the switch-off power pipe in brshless DC motor commutation process in three-phase full-bridge inverter；
Step 2: brshless DC motor revolving speed Sa before record commutation；
Step 3: brshless DC motor revolving speed Sb in record commutation process；
Step 4: whether the absolute value for judging that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value；
Step 5: opening three phase full bridge inversion if the absolute value that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value
Switch-off power pipe in device；
Step 6: it is inverse to turn off three phase full bridge if the absolute value that Sa subtracts Sb in commutation process is not more than the 5% of Sa absolute value
Become the switch-off power pipe in device；
Step 7: step 4 is repeated, until commutation process terminates.
To sum up, a kind of brshless DC motor of the present invention turns off phase control method, can control brshless DC motor commutation process
In shutdown phase current, thus have the function that weaken brshless DC motor high speed commutation torque ripple.
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 turns off phase control method, which comprises the steps of:
Step 1: determining the switch-off power pipe in brshless DC motor commutation process in three-phase full-bridge inverter；
Step 2: brshless DC motor revolving speed Sa before record commutation；
Step 3: brshless DC motor revolving speed Sb in record commutation process；
Step 4: whether the absolute value for judging that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value；
Step 5: being opened in three-phase full-bridge inverter if the absolute value that Sa subtracts Sb in commutation process is greater than the 5% of Sa absolute value
Switch-off power pipe；
Step 6: turning off three-phase full-bridge inverter if the absolute value that Sa subtracts Sb in commutation process is not more than the 5% of Sa absolute value
In switch-off power pipe；
Step 7: step 4 is repeated, until commutation process terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917151.1A CN109039172A (en) | 2018-08-13 | 2018-08-13 | A kind of brshless DC motor shutdown phase control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917151.1A CN109039172A (en) | 2018-08-13 | 2018-08-13 | A kind of brshless DC motor shutdown phase control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109039172A true CN109039172A (en) | 2018-12-18 |
Family
ID=64633924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917151.1A Withdrawn CN109039172A (en) | 2018-08-13 | 2018-08-13 | A kind of brshless DC motor shutdown phase control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109039172A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599732A (en) * | 2009-06-01 | 2009-12-09 | 南京航空航天大学 | The control method of the BLDC position signalling phase error of back-emf zero crossing point reconstruction |
| JP2013059194A (en) * | 2011-09-08 | 2013-03-28 | Panasonic Corp | Inverter controller, motor compressor, and electric apparatus |
| CN104378026A (en) * | 2014-11-24 | 2015-02-25 | 江苏科技大学 | Brushless DC motor high-speed torque pulse control device and method |
-
2018
- 2018-08-13 CN CN201810917151.1A patent/CN109039172A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599732A (en) * | 2009-06-01 | 2009-12-09 | 南京航空航天大学 | The control method of the BLDC position signalling phase error of back-emf zero crossing point reconstruction |
| JP2013059194A (en) * | 2011-09-08 | 2013-03-28 | Panasonic Corp | Inverter controller, motor compressor, and electric apparatus |
| CN104378026A (en) * | 2014-11-24 | 2015-02-25 | 江苏科技大学 | Brushless DC motor high-speed torque pulse control device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Park et al. | Unbalanced ZCP compensation method for position sensorless BLDC motor | |
| JP5382069B2 (en) | Inverter device and electric motor drive system | |
| CN102790568B (en) | Soft start control system for high-speed brushless DC motor | |
| Al Mashhadany | High-performance multilevel inverter drive of brushless DC motor | |
| CN109039172A (en) | A kind of brshless DC motor shutdown phase control method | |
| CN108923699A (en) | Brshless DC motor based on speed error turns off phase control method | |
| CN104836505A (en) | Motor driving device and method and motor | |
| CN108880348A (en) | Shutdown phase control method in brshless DC motor commutation process | |
| CN108988705A (en) | Brshless DC motor postpones turn-on angle control method | |
| CN108880350A (en) | Brshless DC motor turns off phase retardation duration control method | |
| Korkmaz et al. | Modified direct torque control for BLDC motor drives | |
| CN108988703A (en) | A kind of novel brshless DC motor opens phase PWM control method | |
| Ahmad et al. | Sensorless control of brushless DC motor by zero-crossing detection pulse generation with adaptive power factor control technique | |
| CN108988702A (en) | Brshless DC motor turns off phase PWM control method | |
| CN108880347A (en) | Brshless DC motor based on Non-commutation phase current turns off phase control method | |
| CN109067268A (en) | Brshless DC motor opens phase retardation and opens control method | |
| CN108964529A (en) | Brshless DC motor high speed is delayed to turn off angle setting method | |
| CN108880349A (en) | A kind of novel brshless DC motor PWM setting method | |
| CN108900118A (en) | A kind of brshless DC motor commutation current control method | |
| Gao et al. | Regenerative braking system of PM synchronous motor | |
| Dodke et al. | Comparison of cuk and buck converter fed electronically commuted motor drive | |
| CN109067266A (en) | Brshless DC motor low speed opens phase PWM setting method | |
| Shetty et al. | Mathematical modeling of permanent magnet brushless dc motor for electric scooter | |
| Subramonium et al. | Closed loop control system modeling of Permanent Magnet Brushless DC Motor | |
| Dhanasekar et al. | Improved Source End Power Factor Enhancement of BLDC Motor Using Bridgeless-Landsman Converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20181218 |
|
| WW01 | Invention patent application withdrawn after publication |