CN111416565A - Motor control device and method with variable carrier frequency - Google Patents
Motor control device and method with variable carrier frequency Download PDFInfo
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- CN111416565A CN111416565A CN202010229275.8A CN202010229275A CN111416565A CN 111416565 A CN111416565 A CN 111416565A CN 202010229275 A CN202010229275 A CN 202010229275A CN 111416565 A CN111416565 A CN 111416565A
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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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
- H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
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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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/0004—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
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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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
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- Control Of Electric Motors In General (AREA)
Abstract
The invention relates to the field of motor control, in particular to a variable carrier frequency motor control device and a variable carrier frequency motor control method. The technical scheme includes that the device comprises a control module, a storage module, a testing instrument and a motor, wherein the storage module and the motor are respectively connected with the control module, the testing instrument is connected with the motor, the control module is used for controlling the motor to start and operate and obtaining minimum target carrier frequencies at different stages and different rotating speeds, the storage module is used for storing the minimum target carrier frequencies corresponding to the different rotating speeds at the different stages and debugging PI ring parameters and filter cut-off frequencies, and the testing instrument is used for outputting a motor performance fluctuation curve graph and is suitable for a variable carrier frequency motor control device and a variable carrier frequency motor control method.
Description
Technical Field
The invention relates to the field of motor control, in particular to a motor control device and method with variable carrier frequency.
Background
With the improvement of living standard, various household appliances are used by more and more families, and energy conservation and efficiency improvement are already development trends of the household appliance industry. With the rapid development of power electronic technology and novel semiconductor devices, the frequency conversion speed regulation technology is continuously improved, and the gradually improved frequency converter is widely applied to a frequency conversion speed regulation motor with good output waveform and excellent cost performance. The refrigerator and the air conditioner industry have developed from a fixed frequency compressor to an inverter compressor, and energy efficiency is further improved and power consumption is reduced.
At present, for the literature or patents discussing the control technologies of the DC brushless motor (B L DC) and the Permanent Magnet Synchronous Motor (PMSM), the specific implementation of the B L DC and PMSM control technologies is analyzed, such as the trapezoidal wave/square wave control technology, the space vector control technology (FOC SVPWM), etc., or the position observation technology (a slip film observer, a P LL observer), the motor rotor position identification technology (such as the high frequency pulse injection algorithm), etc. in the existing control technologies of the DC brushless motor (B L DC) and the Permanent Magnet Synchronous Motor (PMSM), both the square wave control technology and the sine wave control technology adopt the fixed carrier frequency to control the speed of the motor rotor, i.e., perform the operations of primary current sampling, rotor position estimation, PI loop feedback calculation, voltage output adjustment, etc. within a fixed period.
The method comprises the following steps that firstly, the precise control of a motor rotor is difficult to carry out by using the same set of control parameters in different stages of the motor operation, only the basic performance of each stage at each rotating speed can be met, and sometimes a set of control parameters debugged to meet the starting performance can not be met in the operating stage.
Disclosure of Invention
The invention aims to provide a motor control device and method with variable carrier frequency, which adopt different carrier frequencies and parameters to accurately control a motor at different stages and different rotating speeds, greatly optimize the overall performance of the motor, greatly reduce the overall power consumption of the motor and prolong the service life of the motor.
The invention adopts the following technical scheme to realize the aim, and the variable carrier frequency motor control device comprises a control module, a storage module, a test instrument and a motor, wherein the storage module and the motor are respectively connected with the control module, and the test instrument is connected with the motor;
the control module is used for controlling the motor to start and run, acquiring a minimum target carrier frequency which can meet the full-load starting requirement of the motor and a minimum target carrier frequency which can meet the normal running of the motor in each rotating speed interval, debugging corresponding PI ring parameters and filter cut-off frequency according to the respective corresponding minimum target carrier frequency, respectively recording the debugged optimal PI ring parameters, filter cut-off frequency and the corresponding minimum target carrier frequency in the storage module, and loading the correspondingly recorded carrier frequency, PI ring parameters and filter cut-off frequency when the motor is normally started and run;
the storage module is used for storing and recording carrier frequency, PI ring parameters and filter cut-off frequency corresponding to a starting stage and carrier frequency, PI ring parameters and filter cut-off frequency corresponding to each rotating speed interval in an operating stage;
the testing instrument is used for outputting a motor performance fluctuation curve graph, and the motor performance fluctuation curve graph is used for assisting in obtaining the minimum target carrier frequency.
The motor control method of the variable carrier frequency is applied to the motor control device of the variable carrier frequency, and comprises the following steps:
step (1), setting a motor rotating speed interval;
step (2), acquiring a minimum target carrier frequency which can meet the full-load starting requirement of the motor;
step (3), obtaining an optimal PI ring parameter and a filter cut-off frequency according to the obtained minimum target carrier frequency when the motor is started at full load, and recording the optimal PI ring parameter, the filter cut-off frequency and the corresponding minimum target carrier frequency in a storage module;
step (4), acquiring a minimum target carrier frequency which meets the requirement of normal operation of the motor in each rotating speed interval;
step (5), obtaining an optimal PI ring parameter and a filter cut-off frequency according to the minimum target carrier frequency obtained in each rotating speed interval, and recording the optimal PI ring parameter, the filter cut-off frequency and the corresponding minimum target carrier frequency in a storage module;
and (6) starting the motor to operate, and loading the carrier frequency, the PI ring parameters and the filter cut-off frequency which are correspondingly recorded in the storage module according to the current state and the rotating speed of the motor.
Further, in the step (1), the step of setting the motor rotation speed interval includes: setting the rotating speed of a motor as V, setting the initial rotating speed of the motor as Vmin after the motor is started, setting the highest rotating speed as Vmax, dividing the rotating speed range of the motor into N intervals, setting the rotating speed difference value of each interval as d, setting d as (Vmax-Vmin)/N, and obtaining that the first rotating speed interval is Vmin ≦ V ≦ Vmin + d, the second rotating speed interval is Vmin + d ≦ V ≦ Vmin +2d, the N-1 rotating speed interval is Vmin + (N-2) × (N-d ≦ V ≦ Vmin + (N-1) × (d), and the N rotating speed interval is Vmin + (N-1) × (N-d ≦ V ≦ max.
Further, in step (2), the step of obtaining the minimum target carrier frequency capable of meeting the full-load starting requirement of the motor comprises the following steps:
A. controlling the full-load starting of the motor, loading the carrier frequency to be tested into the motor, observing a motor performance fluctuation curve graph output by a testing instrument, calculating a central point value according to a fluctuation peak value of the motor performance fluctuation curve graph, and making a difference between the central point value and a preset value, wherein if the difference value is within a standard error range, the current carrier frequency to be tested reaches the full-load starting requirement of the motor, executing the step B, and if the difference value is not within the standard error range, the current carrier frequency to be tested does not reach the full-load starting requirement of the motor, and executing the step C;
B. reducing the current carrier frequency to be detected, judging whether the reduced carrier frequency to be detected can meet the full-load starting requirement of the motor or not, if the reduced carrier frequency can not meet the full-load starting requirement of the motor, reducing the previous carrier frequency to be detected to be the minimum target carrier frequency capable of meeting the full-load starting requirement of the motor, if the reduced carrier frequency can meet the full-load starting requirement of the motor, continuing to reduce the current carrier frequency to be detected, and judging whether the reduced carrier frequency to be detected can meet the full-load starting requirement of the motor or not until the minimum carrier frequency capable of meeting the full-load starting requirement of the motor;
C. increasing the current carrier frequency to be detected, judging whether the increased carrier frequency can meet the full-load starting requirement of the motor, if so, determining the increased carrier frequency to be detected to be the minimum target carrier frequency capable of achieving the full-load starting of the motor, and if not, continuing to increase the current carrier frequency to be detected, and judging whether the increased carrier frequency can meet the full-load starting requirement of the motor until finding out the minimum carrier frequency capable of meeting the full-load starting requirement of the motor.
Further, in step (3) and step (5), the implementation step of obtaining the optimal PI loop parameter and the filter cutoff frequency includes: and debugging the PI ring parameter and the cut-off frequency of the filter according to the obtained minimum target carrier frequency, calculating the difference value between the corresponding central point value and a preset value, and when the difference value is minimum, obtaining the optimal PI ring parameter and the cut-off frequency of the filter corresponding to the minimum difference value.
Further, in the step (4), the control module controls the motor to sequentially operate in each rotation speed interval, and the step of obtaining the minimum target carrier frequency meeting the normal operation of the motor in each rotation speed interval includes the following steps:
A. the control module controls the motor to sequentially operate from a first rotating speed interval to an Nth rotating speed interval, sequentially loads the carrier frequency to be measured of each interval into the motor, respectively calculates the difference between the corresponding center point value and a preset value when the motor operates at the lowest rotating speed, the highest rotating speed and the middle rotating speed in each rotating speed interval, if the three differences are within a standard error range, the current carrier frequency can meet the normal operation of the motor in the interval, and executes the step B;
B. reducing the current carrier frequency to be detected, judging whether the reduced carrier frequency to be detected can meet the normal operation of the motor in the interval, if not, reducing the previous carrier frequency to be detected to be the minimum target carrier frequency which can meet the normal operation of the motor in the interval, if so, continuing to reduce the current carrier frequency to be detected, and judging whether the reduced carrier frequency to be detected can meet the normal operation of the motor in the interval until finding out the minimum target carrier frequency which meets the normal operation of the motor in the interval;
C. increasing the current carrier frequency to be detected, judging whether the increased carrier frequency to be detected can meet the normal operation of the motor in the interval, if so, increasing the carrier frequency to be detected to be the minimum target carrier frequency capable of meeting the normal operation of the motor in the interval, if not, continuing to increase the current carrier frequency, judging whether the increased carrier frequency to be detected can meet the normal operation of the motor in the interval, and until finding out the minimum target carrier frequency capable of meeting the normal operation of the motor in the interval.
The control module controls the motor to start and run, obtains the minimum target carrier frequency which can meet the full load starting requirement of the motor and the minimum target carrier frequency which can meet the normal running of the motor in each rotating speed interval, debugs corresponding PI ring parameters and filter cut-off frequency according to the respective corresponding minimum target carrier frequency, respectively records the debugged optimal PI ring parameters, filter cut-off frequency and the corresponding minimum target carrier frequency in the storage module, and simultaneously loads the correspondingly recorded carrier frequency, PI ring parameters and filter cut-off frequency when the motor is normally started and run; the method comprises the steps of loading corresponding carrier frequency, PI ring parameters and filter cut-off frequency at the starting stage of the motor, and loading the corresponding carrier frequency, PI ring parameters and filter cut-off frequency according to different rotating speeds of the motor when the motor runs.
Drawings
Fig. 1 is a block diagram showing the structure of a variable carrier frequency motor control device according to the present invention.
Fig. 2 is a flow chart of the method of the present invention.
Detailed Description
The structural block diagram of the variable carrier frequency motor control device is shown in figure 1, and the variable carrier frequency motor control device comprises a control module, a storage module, a test instrument and a motor, wherein the storage module and the motor are respectively connected with the control module, and the test instrument is connected with the motor;
the control module is used for controlling the motor to start and run, acquiring a minimum target carrier frequency which can meet the full-load starting requirement of the motor and a minimum target carrier frequency which can meet the normal running of the motor in each rotating speed interval, debugging corresponding PI ring parameters and filter cut-off frequency according to the respective corresponding minimum target carrier frequency, respectively recording the debugged optimal PI ring parameters, filter cut-off frequency and the corresponding minimum target carrier frequency in the storage module, and loading the correspondingly recorded carrier frequency, PI ring parameters and filter cut-off frequency when the motor is normally started and run;
the storage module is used for storing and recording carrier frequency, PI ring parameters and filter cut-off frequency corresponding to a starting stage and carrier frequency, PI ring parameters and filter cut-off frequency corresponding to each rotating speed interval in an operating stage;
the testing instrument is used for outputting a motor performance fluctuation curve graph, and the motor performance fluctuation curve graph is used for assisting in obtaining the minimum target carrier frequency.
The invention relates to a method for controlling a motor with variable carrier frequency, which has a flow chart as shown in figure 2 and comprises the following steps:
step 201: setting a motor rotating speed interval;
step 202: acquiring a minimum target carrier frequency which can meet the full-load starting requirement of the motor;
step 203: debugging PI ring parameters and filtering cut-off frequency according to the minimum target carrier frequency;
step 204: recording the debugged optimal PI ring parameter, the filtering cut-off frequency and the corresponding minimum carrier target frequency in a storage module;
step 205: acquiring corresponding minimum target carrier frequencies of the motor in different rotating speed intervals;
step 206: debugging corresponding PI ring parameters and filtering cut-off frequency according to the minimum target carrier frequency in each rotating speed interval;
step 207: recording the optimal PI ring parameters, the filtering cut-off frequency and the corresponding minimum carrier target frequency debugged in each interval in a storage module;
step 208: and loading the carrier frequency, the PI ring parameters and the filter cut-off frequency which are correspondingly recorded in the storage module when the motor is started to operate.
In step 201, the specific implementation means for setting the motor rotation speed interval includes: setting the rotating speed of a motor as V, setting the initial rotating speed of the motor as Vmin after the motor is started, setting the highest rotating speed as Vmax, dividing the rotating speed range of the motor into N intervals, setting the rotating speed difference value of each interval as d, setting d as (Vmax-Vmin)/N, and obtaining that the first rotating speed interval is Vmin ≦ V ≦ Vmin + d, the second rotating speed interval is Vmin + d ≦ V ≦ Vmin +2d, the N-1 rotating speed interval is Vmin + (N-2) × (N-d ≦ V ≦ Vmin + (N-1) × (d), and the N rotating speed interval is Vmin + (N-1) × (N-d ≦ V ≦ max.
In step 202, the minimum target carrier frequency that can meet the full load starting requirement of the motor is obtained, which can be realized by the following steps:
A. controlling the full-load starting of the motor, loading the carrier frequency to be tested into the motor, observing a motor performance fluctuation curve graph output by a testing instrument, calculating a central point value according to a fluctuation peak value of the motor performance fluctuation curve graph, and making a difference between the central point value and a preset value, wherein if the difference value is within a standard error range, the current carrier frequency to be tested reaches the full-load starting requirement of the motor, executing the step B, and if the difference value is not within the standard error range, the current carrier frequency to be tested does not reach the full-load starting requirement of the motor, and executing the step C;
B. reducing the current carrier frequency to be detected, judging whether the reduced carrier frequency to be detected can meet the full-load starting requirement of the motor or not, if the reduced carrier frequency can not meet the full-load starting requirement of the motor, reducing the previous carrier frequency to be detected to be the minimum target carrier frequency capable of meeting the full-load starting requirement of the motor, if the reduced carrier frequency can meet the full-load starting requirement of the motor, continuing to reduce the current carrier frequency to be detected, and judging whether the reduced carrier frequency to be detected can meet the full-load starting requirement of the motor or not until the minimum carrier frequency capable of meeting the full-load starting requirement of the motor;
C. increasing the current carrier frequency to be detected, judging whether the increased carrier frequency can meet the full-load starting requirement of the motor, if so, determining the increased carrier frequency to be detected to be the minimum target carrier frequency capable of achieving the full-load starting of the motor, and if not, continuing to increase the current carrier frequency to be detected, and judging whether the increased carrier frequency can meet the full-load starting requirement of the motor until finding out the minimum carrier frequency capable of meeting the full-load starting requirement of the motor.
In step 204 and step 207, the specific implementation means of the debugged optimal PI loop parameter and the filter cutoff frequency includes: and debugging the PI ring parameter and the cut-off frequency of the filter according to the obtained minimum target carrier frequency, calculating the difference value between the corresponding central point value and a preset value, and when the difference value is minimum, obtaining the optimal PI ring parameter and the cut-off frequency of the filter corresponding to the minimum difference value.
The specific implementation means for calculating the difference between the corresponding center point value and the predetermined value comprises the following steps: and observing a motor performance fluctuation curve graph output by the testing instrument, calculating a central point value according to a fluctuation peak value of the motor performance fluctuation curve graph, and differentiating the central point value from a preset value.
In step 205, the specific implementation steps of obtaining the minimum target carrier frequency corresponding to the motor in different rotation speed intervals include:
A. the control module controls the motor to sequentially operate from a first rotating speed interval to an Nth rotating speed interval, sequentially loads the carrier frequency to be measured of each interval into the motor, respectively calculates the difference between the corresponding center point value and a preset value when the motor operates at the lowest rotating speed, the highest rotating speed and the middle rotating speed in each rotating speed interval, if the three differences are within a standard error range, the current carrier frequency can meet the normal operation of the motor in the interval, and executes the step B;
B. reducing the current carrier frequency to be detected, judging whether the reduced carrier frequency to be detected can meet the normal operation of the motor in the interval, if not, reducing the previous carrier frequency to be detected to be the minimum target carrier frequency which can meet the normal operation of the motor in the interval, if so, continuing to reduce the current carrier frequency to be detected, and judging whether the reduced carrier frequency to be detected can meet the normal operation of the motor in the interval until finding out the minimum target carrier frequency which meets the normal operation of the motor in the interval;
C. increasing the current carrier frequency to be detected, judging whether the increased carrier frequency to be detected can meet the normal operation of the motor in the interval, if so, increasing the carrier frequency to be detected to be the minimum target carrier frequency capable of meeting the normal operation of the motor in the interval, if not, continuing to increase the current carrier frequency, judging whether the increased carrier frequency to be detected can meet the normal operation of the motor in the interval, and until finding out the minimum target carrier frequency capable of meeting the normal operation of the motor in the interval.
In summary, the present invention first obtains the minimum target carrier frequency that can satisfy the operation of the motor in different stages and at different rotation speeds, debugs the PI loop parameter and the filter cutoff frequency according to the obtained minimum target carrier frequency, so that the performance of the motor is better under the corresponding minimum target carrier frequency, then records the debugged optimal PI loop parameter, the filter cutoff frequency and the respective corresponding minimum target carrier frequency in the storage module, and loads the carrier frequency, the PI loop parameter and the filter cutoff frequency corresponding to each rotation speed in each stage while the control module controls the motor to start operation, thereby greatly optimizing the overall performance of the motor and greatly reducing the power consumption, and prolonging the service life of the motor.
Claims (6)
1. The motor control device with variable carrier frequency is characterized in that: the device comprises a control module, a storage module, a test instrument and a motor, wherein the storage module and the motor are respectively connected with the control module, and the test instrument is connected with the motor;
the control module is used for controlling the motor to start and run, acquiring a minimum target carrier frequency which can meet the full-load starting requirement of the motor and a minimum target carrier frequency which can meet the normal running of the motor in each rotating speed interval, debugging corresponding PI ring parameters and filter cut-off frequency according to the respective corresponding minimum target carrier frequency, respectively recording the debugged optimal PI ring parameters, filter cut-off frequency and the corresponding minimum target carrier frequency in the storage module, and loading the correspondingly recorded carrier frequency, PI ring parameters and filter cut-off frequency when the motor is normally started and run;
the storage module is used for storing and recording carrier frequency, PI ring parameter and filter cut-off frequency corresponding to a starting stage and carrier frequency, PI ring parameter and filter cut-off frequency corresponding to each rotating speed interval in an operation stage;
the testing instrument is used for outputting a motor performance fluctuation curve graph, and the motor performance fluctuation curve graph is used for assisting in obtaining the minimum target carrier frequency.
2. The method for controlling a variable carrier frequency motor according to claim 1, comprising the steps of:
step (1), setting a motor rotating speed interval;
step (2), acquiring a minimum target carrier frequency which can meet the full-load starting requirement of the motor;
step (3), obtaining an optimal PI ring parameter and a filter cut-off frequency according to the obtained minimum target carrier frequency when the motor is started at full load, and recording the optimal PI ring parameter, the filter cut-off frequency and the corresponding minimum target carrier frequency in a storage module;
step (4), acquiring a minimum target carrier frequency which meets the requirement of normal operation of the motor in each rotating speed interval;
step (5), obtaining an optimal PI ring parameter and a filter cut-off frequency according to the minimum target carrier frequency obtained in each rotating speed interval, and recording the optimal PI ring parameter, the filter cut-off frequency and the corresponding minimum target carrier frequency in a storage module;
and (6) starting the motor to operate, and loading the carrier frequency, the PI ring parameters and the filter cut-off frequency which are correspondingly recorded in the storage module according to the current state and the rotating speed of the motor.
3. The method of claim 2, wherein the method comprises: in step (1), the step of setting the motor rotation speed interval includes: setting the rotating speed of a motor as V, setting the initial rotating speed of the motor as Vmin after the motor is started, setting the highest rotating speed as Vmax, dividing the rotating speed range of the motor into N intervals, setting the rotating speed difference value of each interval as d, setting d as (Vmax-Vmin)/N, and obtaining that the first rotating speed interval is Vmin ≦ V ≦ Vmin + d, the second rotating speed interval is Vmin + d ≦ V ≦ Vmin +2d, the N-1 rotating speed interval is Vmin + (N-2) × (N-d ≦ V ≦ Vmin + (N-1) × (d), and the N rotating speed interval is Vmin + (N-1) × (N-d ≦ V ≦ max.
4. The method of claim 2, wherein the method comprises: in step (2), the step of obtaining the minimum target carrier frequency capable of meeting the full-load starting requirement of the motor comprises the following steps:
A. controlling the full-load starting of the motor, loading the carrier frequency to be tested into the motor, observing a motor performance fluctuation curve graph output by a testing instrument, calculating a central point value according to a fluctuation peak value of the motor performance fluctuation curve graph, and making a difference between the central point value and a preset value, wherein if the difference value is within a standard error range, the current carrier frequency to be tested reaches the full-load starting requirement of the motor, executing the step B, and if the difference value is not within the standard error range, the current carrier frequency to be tested does not reach the full-load starting requirement of the motor, and executing the step C;
B. reducing the current carrier frequency to be detected, judging whether the reduced carrier frequency to be detected can meet the full-load starting requirement of the motor or not, if the reduced carrier frequency can not meet the full-load starting requirement of the motor, reducing the previous carrier frequency to be detected to be the minimum target carrier frequency capable of meeting the full-load starting requirement of the motor, if the reduced carrier frequency can meet the full-load starting requirement of the motor, continuing to reduce the current carrier frequency to be detected, and judging whether the reduced carrier frequency to be detected can meet the full-load starting requirement of the motor or not until the minimum carrier frequency capable of meeting the full-load starting requirement of the motor;
C. increasing the current carrier frequency to be detected, judging whether the increased carrier frequency can meet the full-load starting requirement of the motor, if so, determining the increased carrier frequency to be detected to be the minimum target carrier frequency capable of achieving the full-load starting of the motor, and if not, continuing to increase the current carrier frequency to be detected, and judging whether the increased carrier frequency can meet the full-load starting requirement of the motor until finding out the minimum carrier frequency capable of meeting the full-load starting requirement of the motor.
5. The method of claim 2, wherein the method comprises: in step (3) and step (5), the implementation step of obtaining the optimal PI loop parameter and the filter cutoff frequency includes: and debugging the PI ring parameter and the cut-off frequency of the filter according to the obtained minimum target carrier frequency, calculating the difference value between the corresponding central point value and a preset value, and when the difference value is minimum, obtaining the optimal PI ring parameter and the cut-off frequency of the filter corresponding to the minimum difference value.
6. The method of claim 2, wherein the method comprises: in the step (4), the obtaining of the minimum target carrier frequency meeting the normal operation of the motor in each rotation speed interval includes the following steps:
A. the control module controls the motor to sequentially operate from a first rotating speed interval to an Nth rotating speed interval, sequentially loads the carrier frequency to be measured of each interval into the motor, respectively calculates the difference between the corresponding center point value and a preset value when the motor operates at the lowest rotating speed, the highest rotating speed and the middle rotating speed in each rotating speed interval, if the three differences are within a standard error range, the current carrier frequency can meet the normal operation of the motor in the interval, and executes the step B;
B. reducing the current carrier frequency to be detected, judging whether the reduced carrier frequency to be detected can meet the normal operation of the motor in the interval, if not, reducing the previous carrier frequency to be detected to be the minimum target carrier frequency which can meet the normal operation of the motor in the interval, if so, continuing to reduce the current carrier frequency to be detected, and judging whether the reduced carrier frequency to be detected can meet the normal operation of the motor in the interval until finding out the minimum target carrier frequency which meets the normal operation of the motor in the interval;
C. increasing the current carrier frequency to be detected, judging whether the increased carrier frequency to be detected can meet the normal operation of the motor in the interval, if so, increasing the carrier frequency to be detected to be the minimum target carrier frequency capable of meeting the normal operation of the motor in the interval, if not, continuing to increase the current carrier frequency, judging whether the increased carrier frequency to be detected can meet the normal operation of the motor in the interval, and until finding out the minimum target carrier frequency capable of meeting the normal operation of the motor in the interval.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350637A (en) * | 2020-09-17 | 2021-02-09 | 珠海格力电器股份有限公司 | Motor noise control method, computer readable storage medium and motor |
| CN112803843A (en) * | 2021-01-29 | 2021-05-14 | 广东威灵电机制造有限公司 | Motor starting control method, device, equipment and storage medium |
| CN113179053A (en) * | 2021-06-16 | 2021-07-27 | 国华(青岛)智能装备有限公司 | Synchronous motor control system and control method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966827A (en) * | 2005-11-17 | 2007-05-23 | Lg电子株式会社 | A device and a method for driving the motor of a washing machine |
| JP2007282298A (en) * | 2006-04-03 | 2007-10-25 | Nissan Motor Co Ltd | Motor controller |
| CN101689828A (en) * | 2007-06-26 | 2010-03-31 | 丰田自动车株式会社 | Motor drive system and its control method |
| CN102287891A (en) * | 2011-06-16 | 2011-12-21 | 广东美的电器股份有限公司 | Direct current convertible frequency air conditioner and control method thereof |
| CN103904974A (en) * | 2012-12-25 | 2014-07-02 | 比亚迪股份有限公司 | Motor control device of electric car |
| CN104218869A (en) * | 2013-05-30 | 2014-12-17 | 神钢建机株式会社 | Frequency converter and rotary engineering machinery |
| CN104359184A (en) * | 2014-09-30 | 2015-02-18 | 海信科龙电器股份有限公司 | Carrier frequency conversion control method and controller |
| CN105027419A (en) * | 2013-03-15 | 2015-11-04 | 松下知识产权经营株式会社 | Motor drive device and electric device using same |
| CN105075102A (en) * | 2013-04-12 | 2015-11-18 | 三菱电机株式会社 | Power conversion device, motor drive device provided therewith, fan provided with said motor drive device, compressor, and air conditioner, refrigerator, and freezer provided with said fan and compressor |
| CN105846742A (en) * | 2015-02-02 | 2016-08-10 | Lg电子株式会社 | Motor driving device and laundry treatment apparatus including the same |
| CN106208785A (en) * | 2016-07-25 | 2016-12-07 | 武汉大学 | A kind of method for designing of inverter based on optimum carrier frequency |
| CN106330045A (en) * | 2016-10-25 | 2017-01-11 | 北京新能源汽车股份有限公司 | Permanent magnet synchronous motor control system and control method of permanent magnet synchronous motor |
| CN106385217A (en) * | 2015-07-23 | 2017-02-08 | 乐星产电(无锡)有限公司 | Control method of frequency converter and control device |
| CN108933554A (en) * | 2017-05-23 | 2018-12-04 | 郑州宇通客车股份有限公司 | A kind of electric machine controller and electric machine controller become carrier frequency control method |
| CN109510563A (en) * | 2018-11-08 | 2019-03-22 | 珠海格力电器股份有限公司 | Control method and system for suppressing motor current harmonic and storage medium |
| CN110492805A (en) * | 2019-07-19 | 2019-11-22 | 杭州洲钜电子科技有限公司 | Method for controlling permanent magnet synchronous motor, system and storage medium based on fuzzy control |
-
2020
- 2020-03-27 CN CN202010229275.8A patent/CN111416565B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966827A (en) * | 2005-11-17 | 2007-05-23 | Lg电子株式会社 | A device and a method for driving the motor of a washing machine |
| JP2007282298A (en) * | 2006-04-03 | 2007-10-25 | Nissan Motor Co Ltd | Motor controller |
| CN101689828A (en) * | 2007-06-26 | 2010-03-31 | 丰田自动车株式会社 | Motor drive system and its control method |
| CN102287891A (en) * | 2011-06-16 | 2011-12-21 | 广东美的电器股份有限公司 | Direct current convertible frequency air conditioner and control method thereof |
| CN103904974A (en) * | 2012-12-25 | 2014-07-02 | 比亚迪股份有限公司 | Motor control device of electric car |
| CN105027419A (en) * | 2013-03-15 | 2015-11-04 | 松下知识产权经营株式会社 | Motor drive device and electric device using same |
| CN105075102A (en) * | 2013-04-12 | 2015-11-18 | 三菱电机株式会社 | Power conversion device, motor drive device provided therewith, fan provided with said motor drive device, compressor, and air conditioner, refrigerator, and freezer provided with said fan and compressor |
| CN104218869A (en) * | 2013-05-30 | 2014-12-17 | 神钢建机株式会社 | Frequency converter and rotary engineering machinery |
| CN104359184A (en) * | 2014-09-30 | 2015-02-18 | 海信科龙电器股份有限公司 | Carrier frequency conversion control method and controller |
| CN105846742A (en) * | 2015-02-02 | 2016-08-10 | Lg电子株式会社 | Motor driving device and laundry treatment apparatus including the same |
| CN106385217A (en) * | 2015-07-23 | 2017-02-08 | 乐星产电(无锡)有限公司 | Control method of frequency converter and control device |
| CN106208785A (en) * | 2016-07-25 | 2016-12-07 | 武汉大学 | A kind of method for designing of inverter based on optimum carrier frequency |
| CN106330045A (en) * | 2016-10-25 | 2017-01-11 | 北京新能源汽车股份有限公司 | Permanent magnet synchronous motor control system and control method of permanent magnet synchronous motor |
| CN108933554A (en) * | 2017-05-23 | 2018-12-04 | 郑州宇通客车股份有限公司 | A kind of electric machine controller and electric machine controller become carrier frequency control method |
| CN109510563A (en) * | 2018-11-08 | 2019-03-22 | 珠海格力电器股份有限公司 | Control method and system for suppressing motor current harmonic and storage medium |
| CN110492805A (en) * | 2019-07-19 | 2019-11-22 | 杭州洲钜电子科技有限公司 | Method for controlling permanent magnet synchronous motor, system and storage medium based on fuzzy control |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350637A (en) * | 2020-09-17 | 2021-02-09 | 珠海格力电器股份有限公司 | Motor noise control method, computer readable storage medium and motor |
| CN112350637B (en) * | 2020-09-17 | 2022-07-12 | 珠海格力电器股份有限公司 | Motor noise control method, computer readable storage medium and motor |
| CN112803843A (en) * | 2021-01-29 | 2021-05-14 | 广东威灵电机制造有限公司 | Motor starting control method, device, equipment and storage medium |
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