CN113014151B - Brushless direct current motor control method and device, brushless direct current motor and electric appliance - Google Patents
Brushless direct current motor control method and device, brushless direct current motor and electric appliance Download PDFInfo
- Publication number
- CN113014151B CN113014151B CN201911308633.8A CN201911308633A CN113014151B CN 113014151 B CN113014151 B CN 113014151B CN 201911308633 A CN201911308633 A CN 201911308633A CN 113014151 B CN113014151 B CN 113014151B
- Authority
- CN
- China
- Prior art keywords
- direct current
- current motor
- brushless direct
- brushless
- voltage
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002596 correlated effect Effects 0.000 claims description 13
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000875 corresponding effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 11
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
-
- 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
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A brushless DC motor control method and control device, wherein the control method comprises: acquiring input voltage of the brushless direct current motor when the brushless direct current motor is positioned at preset power; judging whether the difference value between the input voltage and the first preset voltage is larger than the second preset voltage or not, wherein the first preset voltage and the second preset voltage are positively related to preset power; if the difference value is larger than the second preset voltage, the MCU module of the brushless direct current motor is used for adjusting the duty ratio of the output PWM waves of the brushless direct current motor in each Hall period, and the input power of the brushless direct current motor is controlled to be stable. A brushless DC motor and an electric appliance are also provided. The input voltage of the brushless direct current motor is detected, whether the difference value between the input voltage and the preset voltage is larger than a certain range is judged, the duty ratio of PWM waves output by the brushless direct current motor in each Hall period is adjusted, the influence of the input voltage change on the working state of the brushless direct current motor is avoided, and the stability of the working state of the brushless direct current motor when the input voltage is changed is improved.
Description
Technical Field
The invention relates to the technical field of motor control, in particular to a brushless direct current motor control method and device, a brushless direct current motor and an electric appliance.
Background
The brushless direct current motor has the advantages of high efficiency, large starting torque, convenient control and the like, is applied to various electrical equipment, but has complex and various use environments, and the condition that the voltage value of the input voltage driving the operation of the brushless direct current motor fluctuates or the power supply voltage cannot reach the rated voltage exists, so that the input power and the rotating speed of the brushless direct current motor change, the working state of the electrical equipment changes, and the requirements of users cannot be met.
Taking a portable vacuum cleaner as an example, in the use process, along with continuous consumption of battery electric quantity, the input voltage of a brushless direct current motor in the portable vacuum cleaner is also continuously reduced, if the control mode of the brushless direct current motor is kept unchanged, when the input voltage is reduced, the input power and the rotating speed of the brushless direct current motor are reduced along with the reduction of the input voltage, so that the suction force of the portable vacuum cleaner is reduced, and the normal requirement of a user cannot be met.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the working state of an electric appliance is unstable due to the fluctuation of the rotating speed caused by the fluctuation of the input voltage of the brushless direct current motor, thereby providing a control method of the brushless direct current motor, which comprises the following steps:
acquiring input voltage of the brushless direct current motor when the brushless direct current motor is positioned at preset power;
judging whether the difference value between the input voltage and a first preset voltage is larger than a second preset voltage or not, wherein the first preset voltage and the second preset voltage are positively related to the preset power;
and if the difference value is larger than the second preset voltage, adjusting the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through an MCU module of the brushless direct current motor, and controlling the input power of the brushless direct current motor to keep stable.
Preferably, if the difference value is greater than the second preset voltage, the MCU module of the brushless dc motor adjusts the duty ratio of the output PWM wave of the brushless dc motor in each hall period to control the input power of the brushless dc motor to be stable, including:
if the input voltage is smaller than the first preset voltage, increasing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through an MCU module of the brushless direct current motor so as to control the input power of the brushless direct current motor to keep stable;
and if the input voltage is larger than the first preset voltage, reducing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through an MCU module of the brushless direct current motor so as to control the input power of the brushless direct current motor to keep stable.
Preferably, the duty cycle of the PWM wave increased in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
Preferably, the duty cycle of the PWM wave decreasing in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
Correspondingly, the invention also provides a brushless direct current motor control device, which comprises:
the voltage detection module is used for acquiring the input voltage of the brushless direct current motor when the brushless direct current motor is positioned at preset power;
the judging module is used for judging whether the difference value between the input voltage and a first preset voltage is larger than a second preset voltage or not, and the first preset voltage and the second preset voltage are positively related to the preset power;
and the control module is used for adjusting the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through the MCU module of the brushless direct current motor when the difference value is larger than the second preset voltage, and controlling the input power of the brushless direct current motor to be stable.
Preferably, the control module includes:
the first control unit is used for increasing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through the MCU module of the brushless direct current motor when the input voltage is smaller than the first preset voltage so as to control the input power of the brushless direct current motor to keep stable;
and the second control unit is used for reducing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through the MCU module of the brushless direct current motor when the input voltage is larger than the first preset voltage so as to control the input power of the brushless direct current motor to keep stable.
Preferably, the duty cycle of the PWM wave increased in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
Preferably, the duty cycle of the PWM wave decreasing in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
The invention also provides a brushless direct current motor, which comprises a motor body and any brushless direct current motor control device.
The invention also provides an electric appliance comprising the brushless direct current motor.
The present invention also provides a storage medium having stored thereon a computer program which when executed by a processor performs the steps of any of the above-described brushless dc motor control methods.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the steps of any brushless DC motor control method when executing the program.
The technical scheme of the invention has the following advantages:
according to the brushless direct current motor control method and device, the input voltage of the brushless direct current motor is detected, whether the difference value between the input voltage and the preset voltage is larger than a certain range is judged, so that the duty ratio of PWM waves output by the brushless direct current motor in each Hall period is adjusted, the influence of the input voltage change on the working state of the brushless direct current motor is avoided, and the stability of the working state of the brushless direct current motor in the process of the input voltage change is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for controlling a brushless DC motor according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a control method of a brushless DC motor according to an embodiment of the invention;
FIG. 3 is a block diagram of a brushless DC motor control device according to an embodiment of the invention;
FIG. 4 is a block diagram of a control module according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
A first aspect of the embodiment of the present invention provides a method for controlling a brushless dc motor, referring to fig. 1, including the following steps:
s100, acquiring input voltage of the brushless direct current motor when the brushless direct current motor is at preset power.
Firstly, the input voltage of the brushless direct current motor should be kept stable when the brushless direct current motor operates according to a preset power, so as to ensure that the input power of the brushless direct current motor is kept stable, namely, the working state of an electric appliance comprising the brushless direct current motor is ensured to be kept stable.
The input voltage of the brushless DC motor is positively correlated with the input power thereof. When the brushless direct current motor operates according to the preset power, the input power of the brushless direct current motor deviates from the preset power if the input voltage changes.
S200, judging whether the difference value between the input voltage and the first preset voltage is larger than the second preset voltage, wherein the first preset voltage and the second preset voltage are positively related to preset power.
When the brushless direct current motor operates according to preset power, the input voltage value corresponding to the preset power is a first preset voltage. Comparing the detected input voltage of the brushless direct current motor with a first preset voltage, calculating a difference value between the input voltage and the first preset voltage, and comparing the difference value with a second preset voltage.
When the difference between the input voltage and the first preset voltage is larger than the second preset voltage, the input voltage of the brushless direct current motor is indicated to deviate from a numerical range for enabling the brushless direct current motor to operate according to preset power, and the duty ratio of PWM waves output by the brushless direct current motor in each Hall period needs to be adjusted through an MCU module of the brushless direct current motor so as to ensure that the input power is stable.
When the difference between the input voltage and the first preset voltage is smaller than the second preset voltage, the change of the input power of the brushless direct current motor caused by the change value of the input voltage of the brushless direct current motor is smaller, the MCU module of the brushless direct current motor is not required to adjust the duty ratio of the output PWM wave of the brushless direct current motor in each Hall period, and the current working state is controlled to be continued.
By introducing the second preset voltage and comparing the difference value between the input voltage of the brushless direct current motor and the first preset voltage, the phenomenon that the working state of the brushless direct current motor is improperly interfered when the brushless direct current motor outputs the duty ratio of PWM waves in each Hall period without adjusting the difference value is small is avoided, and the control accuracy of the brushless direct current motor is further enhanced.
And S300, if the difference value is larger than the second preset voltage, adjusting the duty ratio of the PWM wave output by the brushless direct current motor in each Hall period through the MCU module of the brushless direct current motor, and controlling the input power of the brushless direct current motor to be stable.
Specifically, in step S300, if the difference between the input voltage and the first preset voltage is greater than the second preset voltage, the MCU module of the brushless dc motor is used to adjust the duty ratio of the output PWM wave of the brushless dc motor in each hall period to control the input power of the brushless dc motor to be stable, which includes the following two cases: i.e. the input voltage is smaller than the first preset voltage and the input voltage is larger than the first preset voltage.
In one implementation manner of the embodiment of the present invention, when the input voltage of the brushless dc motor is smaller than the first preset voltage, the MCU module of the brushless dc motor increases the duty ratio of the output PWM wave of the brushless dc motor in each hall period, so as to control the input power of the brushless dc motor to remain stable.
Alternatively, the duty cycle of the PWM wave increased in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
That is, when the input voltage of the brushless dc motor is smaller than the first preset voltage and the difference is larger, the ratio of the duty ratio of the output PWM wave of the brushless dc motor in each hall period is increased by the MCU module of the brushless dc motor.
In this embodiment, when the input voltage of the brushless dc motor is greater than the first preset voltage, the MCU module of the brushless dc motor reduces the duty ratio of the output PWM wave of the brushless dc motor in each hall period, so as to control the input power of the brushless dc motor to remain stable.
Alternatively, the duty cycle of the PWM wave decreasing in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
That is, when the input voltage of the brushless direct current motor is greater than the first preset voltage and the difference is greater, the ratio of the duty ratio of the output PWM wave of the brushless direct current motor in each Hall period is also greater by reducing the MCU module of the brushless direct current motor.
When the difference between the input voltage of the brushless direct current motor and the first preset voltage is smaller than the second preset voltage, the value of the input power change caused by the change of the input voltage of the brushless direct current motor is smaller, the change of the working state of an electric appliance comprising the brushless direct current motor is not caused, and the existing working state is only required to be maintained.
As can be seen from fig. 2, the brushless dc motor operates stably in the phase a in fig. 2. In the phase b in fig. 2, when the input voltage of the brushless dc motor decreases, the rotation speed of the brushless dc motor decreases accordingly, and the input power of the brushless dc motor decreases; in the c stage in fig. 2, by increasing the duty ratio of the PWM wave outputted from the brushless dc motor in each hall period, the input power of the brushless dc motor can be increased, and the operation state of the electric appliance including the brushless dc motor can be kept stable; i.e. the actual input power of the brushless dc motor does not differ more than 5% from the preset rotational speed at this time.
Similarly, when the input voltage of the brushless direct current motor increases, the rotation speed of the brushless direct current motor correspondingly increases, the input power of the brushless direct current motor increases, and by reducing the duty ratio of PWM waves output by the brushless direct current motor in each Hall period, the input power of the brushless direct current motor can be reduced, so that the running state of an electric appliance comprising the brushless direct current motor is kept stable, namely, the difference value of the actual input power of the brushless direct current motor relative to the preset rotation speed is not more than 5% of the preset rotation speed.
A second aspect of an embodiment of the present invention provides a brushless dc motor control device, referring to fig. 3, including: a voltage detection module 1, a judgment module 2 and a control module 3. The voltage detection module 1 is used for obtaining an input voltage when the brushless direct current motor is at preset power. The judging module 2 is configured to judge whether a difference between the input voltage and a first preset voltage is greater than a second preset voltage, where the first preset voltage and the second preset voltage are positively related to the preset power. And the control module 3 is used for adjusting the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through the MCU module of the brushless direct current motor when the difference value is larger than a second preset voltage, and controlling the input power of the brushless direct current motor to keep stable.
Optionally, referring to fig. 4, the control module 3 includes: a first control unit 31 and a second control unit 32.
The first control unit 31 is configured to increase, when the input voltage is smaller than a first preset voltage, a duty ratio of the brushless dc motor to output PWM waves in each hall period through the MCU module of the brushless dc motor, so as to control the input power of the brushless dc motor to remain stable.
The second control unit 32 is configured to reduce, by the MCU module of the brushless dc motor, a duty ratio of the output PWM wave of the brushless dc motor in each hall period when the input voltage is greater than the first preset voltage, so as to control the input power of the brushless dc motor to remain stable.
Specifically, the duty cycle of the PWM wave increased in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
Specifically, the duty cycle of the PWM wave decreasing in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
A third aspect of the embodiments of the present invention provides a brushless dc motor, including a motor body, and further including a brushless dc motor control device in any of the foregoing embodiments.
A fourth aspect of the embodiments of the present invention provides an electrical appliance comprising the brushless dc motor provided in the third aspect of the embodiments of the present invention.
A fifth aspect of the embodiments of the present invention provides a storage medium having a computer program stored thereon, which when executed by a processor implements the steps of the brushless dc motor control method of the first aspect of the embodiments of the present invention.
A sixth aspect of the embodiments of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement the steps of the brushless dc motor control method according to the first aspect of the embodiments of the present invention.
According to the brushless direct current motor control method and device, the input voltage of the brushless direct current motor is detected, whether the difference value between the input voltage and the preset voltage is larger than a certain range is judged, so that the duty ratio of PWM waves output by the brushless direct current motor in each Hall period is adjusted, the influence of the input voltage change on the working state of the brushless direct current motor is avoided, and the stability of the working state of the brushless direct current motor in the process of the input voltage change is improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A brushless dc motor control method, which is applied to a portable vacuum cleaner, comprising the steps of:
when the input voltage is reduced due to continuous consumption of the battery electric quantity, the input voltage of the brushless direct current motor when the brushless direct current motor is at preset power is obtained;
judging whether the difference value between the input voltage and a first preset voltage is larger than a second preset voltage or not, wherein the first preset voltage and the second preset voltage are positively related to the preset power;
if the difference value is larger than the second preset voltage, the MCU module of the brushless direct current motor is used for adjusting the duty ratio of the output PWM wave of the brushless direct current motor in each Hall period, the increased duty ratio of the PWM wave in each Hall period is positively correlated with the difference value between the input voltage and the first preset voltage, and the input power of the brushless direct current motor is controlled to be kept stable, so that the difference value of the rotating speed corresponding to the input power of the brushless direct current motor relative to the preset rotating speed is not more than 5% of the preset rotating speed;
and if the difference value is greater than the second preset voltage, adjusting the duty ratio of the output PWM wave of the brushless direct current motor in each Hall period by the MCU module of the brushless direct current motor to control the input power of the brushless direct current motor to be stable, wherein the method comprises the following steps of:
if the input voltage is smaller than the first preset voltage, increasing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through an MCU module of the brushless direct current motor so as to control the input power of the brushless direct current motor to keep stable;
and if the input voltage is larger than the first preset voltage, reducing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through an MCU module of the brushless direct current motor so as to control the input power of the brushless direct current motor to keep stable.
2. The method for controlling a brushless DC motor according to claim 1, wherein,
the duty cycle of the PWM wave decreasing in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
3. A brushless dc motor control device, which is applied to a portable vacuum cleaner, comprising:
the voltage detection module is used for acquiring the input voltage of the brushless direct current motor when the input voltage is reduced due to continuous consumption of the electric quantity of the battery;
the judging module is used for judging whether the difference value between the input voltage and a first preset voltage is larger than a second preset voltage or not, and the first preset voltage and the second preset voltage are positively related to the preset power;
the control module is used for adjusting the duty ratio of the brushless direct current motor to output PWM waves in each Hall period through the MCU module of the brushless direct current motor when the difference value is larger than the second preset voltage, the increased duty ratio of the PWM waves in each Hall period is positively correlated with the difference value between the input voltage and the first preset voltage, and the input power of the brushless direct current motor is controlled to be kept stable, so that the difference value of the rotating speed corresponding to the input power of the brushless direct current motor relative to the preset rotating speed is not more than 5% of the preset rotating speed;
the control module includes:
the first control unit is used for increasing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through the MCU module of the brushless direct current motor when the input voltage is smaller than the first preset voltage so as to control the input power of the brushless direct current motor to keep stable;
and the second control unit is used for reducing the duty ratio of the brushless direct current motor for outputting PWM waves in each Hall period through the MCU module of the brushless direct current motor when the input voltage is larger than the first preset voltage so as to control the input power of the brushless direct current motor to keep stable.
4. A brushless DC motor control device according to claim 3, wherein,
the duty cycle of the PWM wave increased in each hall period is positively correlated with the difference between the input voltage and the first preset voltage.
5. A brushless dc motor comprising a motor body and further comprising the brushless dc motor control device according to claim 3 or 4.
6. An electrical appliance comprising the brushless dc motor of claim 5.
7. A storage medium having stored thereon a computer program which when executed by a processor performs the steps of the brushless dc motor control method of claim 1 or 2.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the brushless dc motor control method of claim 1 or 2 when the program is executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308633.8A CN113014151B (en) | 2019-12-18 | 2019-12-18 | Brushless direct current motor control method and device, brushless direct current motor and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308633.8A CN113014151B (en) | 2019-12-18 | 2019-12-18 | Brushless direct current motor control method and device, brushless direct current motor and electric appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113014151A CN113014151A (en) | 2021-06-22 |
| CN113014151B true CN113014151B (en) | 2023-12-19 |
Family
ID=76382404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911308633.8A Active CN113014151B (en) | 2019-12-18 | 2019-12-18 | Brushless direct current motor control method and device, brushless direct current motor and electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113014151B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11356081A (en) * | 1998-06-09 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Inverter device |
| CN106130419A (en) * | 2016-07-01 | 2016-11-16 | 珠海格力电器股份有限公司 | Direct current motor control device, direct current motor control method, direct current motor and air purifier |
| CN106301132A (en) * | 2016-10-24 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Permagnetic synchronous motor power calculation algorithms, device, refrigerator controller and refrigerator |
| CN106980062A (en) * | 2017-03-13 | 2017-07-25 | 珠海格力电器股份有限公司 | Circuit detection protection method and device for water heater with electronic anode |
| EP3479745A1 (en) * | 2017-11-07 | 2019-05-08 | Miele & Cie. KG | Method for operating an electric drive, preferably a ventilator and/or of a brush of a vacuum cleaner or a vacuum cleaning robot |
| CN110236418A (en) * | 2018-03-07 | 2019-09-17 | 广东美的生活电器制造有限公司 | Food processor and its constant-power control method and control device |
-
2019
- 2019-12-18 CN CN201911308633.8A patent/CN113014151B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11356081A (en) * | 1998-06-09 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Inverter device |
| CN106130419A (en) * | 2016-07-01 | 2016-11-16 | 珠海格力电器股份有限公司 | Direct current motor control device, direct current motor control method, direct current motor and air purifier |
| CN106301132A (en) * | 2016-10-24 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Permagnetic synchronous motor power calculation algorithms, device, refrigerator controller and refrigerator |
| CN106980062A (en) * | 2017-03-13 | 2017-07-25 | 珠海格力电器股份有限公司 | Circuit detection protection method and device for water heater with electronic anode |
| EP3479745A1 (en) * | 2017-11-07 | 2019-05-08 | Miele & Cie. KG | Method for operating an electric drive, preferably a ventilator and/or of a brush of a vacuum cleaner or a vacuum cleaning robot |
| CN110236418A (en) * | 2018-03-07 | 2019-09-17 | 广东美的生活电器制造有限公司 | Food processor and its constant-power control method and control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113014151A (en) | 2021-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11336217B2 (en) | Method for reducing noise of a switched reluctance motor based on adjusting a PWM carrier frequency | |
| CN106438294B (en) | Air compressor | |
| JP3740946B2 (en) | Power supply device, electric motor drive device and air conditioner | |
| US9496802B2 (en) | Inverter device | |
| CN109742982B (en) | Power-adjustable power-limiting control method and controller | |
| US8872464B2 (en) | Motor control method | |
| JP2011085044A (en) | Operating device and method for hydraulic pump in hydraulic system | |
| JP2009261212A (en) | Inverter apparatus and inverter system | |
| CN106982022A (en) | A kind of starting method of no electrolytic capacitor inverter permagnetic synchronous motor | |
| TW201616279A (en) | Start-control method of fan and fan | |
| US7145302B2 (en) | Method and apparatus for driving a brushless direct current motor | |
| JP5822745B2 (en) | Gas compression device | |
| CN113014151B (en) | Brushless direct current motor control method and device, brushless direct current motor and electric appliance | |
| CN112994534B (en) | Brushless direct current motor control method and device, brushless direct current motor and electric appliance | |
| JP2006149097A (en) | Motor controller | |
| JP2008228477A (en) | Motor controller | |
| EP2528223B1 (en) | Ventilation apparatus with feedback compensation control and method for operating the same | |
| CN112787496B (en) | Variable frequency controller, control method thereof and variable frequency electric appliance | |
| EP2624436B1 (en) | Method for controlling inverter and system | |
| CN112994533B (en) | Brushless direct current motor control method and device, brushless direct current motor and electric appliance | |
| JP2005168196A (en) | Inverter controller, drive controller of compressor, refrigerator and inverter control method, and recording medium | |
| CN113078850B (en) | Brushless direct current motor control method and device, brushless direct current motor and electric appliance | |
| CN114337437B (en) | Control method of variable frequency air conditioner, variable frequency air conditioner and computer storage medium | |
| CN107294460B (en) | Control method for soft and hard start adjustment of electric bicycle controller | |
| JP2010288370A (en) | Controller for inverter and method for controlling inverter |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |