CN107294472A - Motor control method, device and equipment - Google Patents
Motor control method, device and equipment Download PDFInfo
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- CN107294472A CN107294472A CN201710369067.6A CN201710369067A CN107294472A CN 107294472 A CN107294472 A CN 107294472A CN 201710369067 A CN201710369067 A CN 201710369067A CN 107294472 A CN107294472 A CN 107294472A
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- motor
- frequency
- working frequency
- amplitude
- working
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention provides a motor control method, a motor control device and motor control equipment, which at least solve the problem that a water pump and a pipeline can resonate in the related technology. The motor control method comprises the following steps: acquiring the working frequency range of a corresponding motor when the amplitude generated by the driven device exceeds a first preset amplitude, wherein the motor is used for driving the driven device; setting each frequency in the obtained working frequency range as a frequency hopping point of the motor; and controlling the motor according to the frequency hopping point of the motor. The method can avoid the resonance of the water pump and the pipeline and improve the stability of the system.
Description
Technical field
The present invention relates to motor control technology field, in particular to a kind of motor control method, device and equipment.
Background technology
At present, variable frequency pump can be typically used in HVAC project, variable frequency pump is controlled according to certain control logic
System can reach the effect of energy-conservation.But variable frequency pump appears in frequency converter in the application of Practical Project, often and is loaded into one
The problem of water pump produces resonance with pipeline can be caused during fixed frequency.Because the complexity of water system pipe network causes water pump and pipeline
Often occurs resonance point at different frequencies.The phenomenon can produce very big noise, and variable frequency pump is long-term with this
In the case of operation can shorten the service life of variable frequency pump, influence pipe network send water.
The content of the invention
The invention provides a kind of motor control method, device and equipment, at least to solve water pump in the prior art and pipe
The problem of resonance occurs in road.
According to the first aspect of the invention there is provided a kind of motor control method, including：Driven equipment is obtained to produce
Amplitude more than the first default amplitude when corresponding motor operating frequency range, the motor is used to driving described to be set by driving
It is standby；By the frequency hopping point that each set of frequency in the operating frequency range is the motor；According to the frequency hopping of motor point pair
The motor is controlled.
Optionally, methods described also includes：During the motor operation, the driven equipment production is periodically obtained
Raw amplitude and the working frequency of the motor；Cause the driven equipment when the motor is run with the first working frequency
In the case that the amplitude of generation exceedes preset times more than the number of times of the second default amplitude, first working frequency is set to
The frequency hopping point of the motor.
Optionally, methods described also includes：Receive the second working frequency of the motor that network side is sent；If described
Second working frequency is identical with the frequency hopping point of the motor, then sends alarm prompt；If received after the alarm prompt is sent
To the instruction message for confirming second working frequency, then the target of the motor is determined based on second working frequency
Working frequency, the target operating frequency is different from second working frequency.
Optionally, the target operating frequency that the motor is determined based on second working frequency, including：
Increase preset value on the basis of second working frequency, obtain the first calibration frequency；On the basis of second working frequency
On subtract the preset value, obtain the second calibration frequency；Control the motor with predetermined period with first calibration frequency with
And the second calibration frequency alternate run.
According to the second aspect of the invention there is provided a kind of motor control assembly, including：
First acquisition module, corresponding motor during for obtaining the amplitude of driven equipment generation more than the first default amplitude
Operating frequency range, the motor be used for drive the driven equipment；First setup module, for by the working frequency
In the range of each set of frequency be the motor frequency hopping point；Control module, for according to the frequency hopping point of the motor to described
Motor is controlled.
Optionally, described device also includes：Second acquisition module, for during the motor operation, periodically obtaining
Take the amplitude of the driven equipment generation and the working frequency of the motor；Second setup module, for when the motor
Number of times of the amplitude that the driven equipment is produced more than the second default amplitude is run more than default with the first working frequency
In the case of number of times, first working frequency is set to the frequency hopping point of the motor.
Optional described device also includes：Receiving module, the second work of the motor for receiving network side transmission
Frequency；Reminding module, if identical with the frequency hopping point of the motor for second working frequency, sends alarm prompt；
Determining module, if confirming the instruction message of second working frequency for being received after the alarm prompt is sent, with
The target operating frequency of the motor, the target operating frequency and second work are determined based on second working frequency
Working frequency is different.
Optionally, the determining module, including：First obtains unit, on the basis of second working frequency
Increase preset value, obtain the first calibration frequency；Second obtaining unit, for subtracting institute on the basis of second working frequency
Preset value is stated, the second calibration frequency is obtained；Control unit, for controlling the motor with predetermined period with the described first calibration frequency
Rate and the second calibration frequency alternate run.
According to the third aspect of the present invention there is provided a kind of electric machinery control device, the equipment includes：Motor, vibration
Detection means and control device；The vibration detection device is used for the amplitude for detecting that driven equipment is produced, and the motor is used
In the driving driven equipment；The control device is used for the amplitude for obtaining driven equipment generation more than the first default amplitude
When corresponding motor operating frequency range, by each set of frequency in the operating frequency range be the motor frequency hopping
Point；The motor is controlled according to the frequency hopping point.
Optionally, the vibration detection device is arranged at the motor internal, and the vibration detection device is examined including displacement
Survey device or acceleration detecting.
The scheme that the embodiment of the present invention is proposed, by the detection to resonance point, obtains the work of the corresponding motor of resonance point
Frequency range, the frequency hopping point that the set of frequency in the frequency range is motor is controlled, energy according to the frequency hopping point to motor
Enough evade the generation of resonance, improve the stability of system.
Brief description of the drawings
Fig. 1 is the flow chart of the motor control method of the embodiment of the present invention 1；
Fig. 2 is the implementation environment schematic diagram of the motor control method of the embodiment of the present invention 1；
Fig. 3 is the flow chart of the acquisition vibration parameters of present example 1；
Fig. 4 A are a kind of setting schematic diagrames of motor frequency hopping point of the embodiment of the present invention 1；
Fig. 4 B are the setting schematic diagrames of another motor frequency hopping point of the embodiment of the present invention 1；
Fig. 5 is the structured flowchart of the motor control assembly of the embodiment of the present invention 2；
Fig. 6 is the structured flowchart of the electric machinery control device of the embodiment of the present invention 3.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the present invention.
Embodiment 1
A kind of motor control method is present embodiments provided, Fig. 1 is the flow chart of this method, as shown in figure 1, this method bag
Include following steps：
Step 101：The work frequency of corresponding motor when obtaining the amplitude of driven equipment generation more than the first default amplitude
Rate scope；
Wherein, motor is used to drive driven equipment.
Step 102：By the frequency hopping point that each set of frequency in the operating frequency range got is motor；
Step 103：Motor is controlled according to the frequency hopping of motor point.
Fig. 2 is the schematic diagram of an exemplary implementation environment of the motor control method that the present embodiment is provided, wherein, water pump
In this context as driven equipment, motor is used to drive the water pump, and acceleration transducer is used for the vibration feelings for detecting water pump
Condition, the vibration parameters control frequency converter that controller is detected according to acceleration transducer exports the electricity in corresponding frequency feed pump
Machine, so as to realize the control to variable-frequency motor.
In the implementation environment shown in Fig. 2, need to ensure that relevant device has been properly installed first, water route can be manually opened
And water quality is good (low impurity).Confirm that variable frequency pump pipe network system is perfect, it is after blocking or drainage, its is right
The valve opening answered.It is related component circuit connection in Fig. 2 is complete, it is ensured that circuit is unimpeded without virtual connection.By controller, water
It is electric on pump, motor and acceleration transducer (or displacement transducer) terminal and frequency converter, system automatic detection relevant device
Integrality, and apply for that entering automatic frequency adapts to operational process, system default starts v/f Starting mode (can also adjust according to demand
Whole is vector controlled).The process of vibration parameters is obtained as shown in figure 3, transducer drive water pump is loaded onto power frequency 50hHz, operation
Water pump inertia is controlled to shut down after 1min.In this process, acceleration transducer starts to detect and records the water that is connected in pipe network
Pump vibration parameter.The process of three acquisition vibration parameters can be repeated, the vibration parameters that automatic contrast is obtained are automatically derived
Vibrate the scope (f1~f2) near the several Frequency points (such as f0) and the Frequency point of maximum.According to the vibration parameters got,
The setting of motor frequency hopping point as shown in Figure 4A and 4B, automatic locking frequency interval (i.e. above-mentioned operating frequency range) (f1~
F2 all Frequency points in) are the frequency hopping point of motor, and frequency converter output frequency will be skipped automatically during follow-up progress variable frequency adjustment
The interval, such as by the direct frequency hoppings of f1 to f2.Wherein, | f1-f2 |≤a, a are settable nonnegative integer, when detecting energy
Enough so that water pump produces another operating frequency range (f3~f4) of resonance with pipeline, the scope is set in the way of Fig. 4 A
Interior all frequencies are the frequency hopping point of motor, as shown in Figure 4 B.
Because in the actual motion of motor, often there are multiple resonance points in water pump, and it is different to change pipe network with pipeline
Other equipment (for example, other water pumps start or stop) in partial break-make and same system etc. also results in resonance
The change of point.For this kind of situation, it can cause the motor control method that the present embodiment is provided that there is self study to resonance point
Ability, to know new resonance point information.Based on this, on the basis of above-mentioned steps 101 to step 103, the present embodiment is provided
Motor control method can also include following processing：
During motor operation, the amplitude of driven equipment generation and the working frequency of motor are periodically obtained；When
Motor runs number of times of the amplitude that driven equipment is produced more than the second default amplitude more than default with the first working frequency
In the case of number of times, the first working frequency is set to the frequency hopping point of motor.It can so make in motor repeatedly with a frequency
When the vibration that rate point is produced when running is bigger than normal, the Frequency point is recognized and the frequency hopping point of motor is set to.
When the motor working frequency of default is exactly frequency resonance point f, alarm notification can be sent, user is pointed out
The working frequency is set to cause resonant conditions, it is proposed that user should not set the working frequency as motor operation frequency.Such as
Fruit user sets the working frequency by force, then f ± △ f can be obtained according to f so that motor f+ △ f and f- △ f the two
With fixed cycle alternate run between frequency, alt time could be arranged to t.Wherein 1≤△ f≤3,1min≤t≤5min, △
F and t can be set in span.If △ f and t beyond default scoping, would not allow for setting, and eject that prompting frame shows can
Setting range.Based on the design, the method that the present embodiment is provided can include following processing：
Receive the second working frequency of the motor that network side is sent；If the second working frequency and the frequency hopping point phase of motor
Together, then alarm prompt is sent；If the instruction message for confirming the second working frequency is received after alarm prompt is sent, with second
The target operating frequency of motor is determined based on working frequency；Wherein, the target of motor is determined based on the second working frequency
Working frequency can include：Increase preset value on the basis of the second working frequency, obtain the first calibration frequency；In the second work
Preset value is subtracted on the basis of frequency, the second calibration frequency is obtained；Controlled motor with predetermined period with the first calibration frequency and
Second calibration frequency alternate run, wherein, target operating frequency is different from the second working frequency.
In addition, when the situation of the vibration frequency range got wide (acquiescence is interval more than 5Hz), system can be reported automatically
It is alert, point out resonance range excessive.
The motor control method of the present embodiment, by the detection to water pump and pipeline resonance point, obtains resonance point corresponding
Motor operating frequency range, the scope is set to the frequency hopping point of motor, motor is controlled according to the frequency hopping point, Neng Gougui
The generation of resonance is kept away, the stability of system is improved.
Embodiment 2
A kind of motor control assembly is present embodiments provided, the device is used to realize aforementioned motor control method, and Fig. 5 is this
The structured flowchart of device, as shown in figure 5, the device 50 includes following part：
First acquisition module 51, when the amplitude that the module is used to obtaining driven equipment generation is more than the first default amplitude pair
The operating frequency range for the motor answered, motor is used to drive driven equipment；
First setup module 52, the module is used for the jump for motor by each set of frequency in the operating frequency range of acquisition
Frequency；
Control module 53, the module is used to be controlled motor according to the frequency hopping point of motor.
The device 50 can also include：Second acquisition module, the module is used for during motor operation, periodically obtains
Amplitude and the working frequency of motor that driven equipment is produced；Second setup module, for when motor is with the first working frequency
In the case that operation make it that the amplitude that driven equipment is produced exceedes preset times more than the number of times of the second default amplitude, by first
Working frequency is set to the frequency hopping point of motor.
Said apparatus 50 can also include：Receiving module, the second working frequency of the motor for receiving network side transmission；
Reminding module, if identical with the frequency hopping point of motor for the second working frequency, sends alarm prompt；Determining module, is used for
If receiving the instruction message for confirming the second working frequency after alarm prompt is sent, determined based on the second working frequency
The target operating frequency of motor, wherein, target operating frequency is different from the second working frequency.
Wherein it is determined that module can specifically include：First obtains unit, for increasing on the basis of the second working frequency
Preset value, obtains the first calibration frequency；Second obtaining unit, for subtracting preset value on the basis of the second working frequency, is obtained
Obtain the second calibration frequency；Control unit, for controlled motor with predetermined period with the first calibration frequency and the second calibration frequency
Alternate run.
The motor control assembly of the present embodiment obtains the corresponding electricity of resonance point by the detection to water pump and pipeline resonance point
Machine operating frequency range, the scope is set to the frequency hopping point of motor, and motor is controlled according to the frequency hopping point, can be evaded
The generation of resonance, improves the stability of system.
Embodiment 3
A kind of electric machinery control device is present embodiments provided, Fig. 6 is the structured flowchart of the equipment, as shown in fig. 6, the equipment
60 include following part：
Motor 61, vibration detection device 62 and control device 63；
Vibration detection device 62 is used for the amplitude for detecting that driven equipment is produced, and motor 61 is used to drive driven equipment；
Corresponding motor when control device 63 is for obtaining the amplitude of driven equipment generation more than the first default amplitude
Operating frequency range, by the frequency hopping point that each set of frequency in operating frequency range is motor；Motor is carried out according to frequency hopping point
Control.
Wherein, motor 61 can be variable-frequency motor, and control device 63 can include processor and/controller.
Wherein, vibration detection device 62 can be arranged inside motor 61, and the vibration detection device 62 can include position
Detection means or acceleration detecting are moved, can be specifically displacement transducer or acceleration transducer.
The equipment that the present embodiment is provided obtains the corresponding motor work of resonance point by the detection to water pump and pipeline resonance point
Working frequency scope, the scope is set to the frequency hopping point of motor, and motor is controlled according to the frequency hopping point, can evade resonance
Generation, improve system stability.
On the device in above-described embodiment, wherein unit, module performs the concrete mode of operation relevant
It is described in detail in the embodiment of this method, explanation will be not set forth in detail herein.
Those skilled in the art will readily occur to its of the present invention after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and the common knowledge in the art do not invented including the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (10)
1. a kind of motor control method, it is characterised in that including：
The operating frequency range of corresponding motor, the electricity when obtaining the amplitude of driven equipment generation more than the first default amplitude
Machine is used to drive the driven equipment；
By the frequency hopping point that each set of frequency in the operating frequency range is the motor；
The motor is controlled according to the frequency hopping of motor point.
2. according to the method described in claim 1, it is characterised in that methods described also includes：
During the motor operation, the work of amplitude and the motor that the driven equipment is produced periodically is obtained
Frequency；
Amplitude is preset more than second when the motor runs the amplitude for causing the driven equipment to produce with the first working frequency
Number of times exceed preset times in the case of, first working frequency is set to the frequency hopping point of the motor.
3. according to the method described in claim 1, it is characterised in that methods described also includes：
Receive the second working frequency of the motor that network side is sent；
If second working frequency is identical with the frequency hopping point of the motor, alarm prompt is sent；
If the instruction message for confirming second working frequency is received after the alarm prompt is sent, with second work
The target operating frequency of the motor is determined based on working frequency, the target operating frequency and second working frequency are not
Together.
4. method according to claim 3, it is characterised in that the determination based on second working frequency is described
The target operating frequency of motor, including：
Increase preset value on the basis of second working frequency, obtain the first calibration frequency；
The preset value is subtracted on the basis of second working frequency, the second calibration frequency is obtained；
Control the motor with predetermined period with first calibration frequency and the second calibration frequency alternate run.
5. a kind of motor control assembly, it is characterised in that including：
First acquisition module, the work of corresponding motor during for obtaining the amplitude of driven equipment generation more than the first default amplitude
Working frequency scope, the motor is used to drive the driven equipment；
First setup module, for by each set of frequency in the operating frequency range be the motor frequency hopping point；
Control module, is controlled for the frequency hopping point according to the motor to the motor.
6. device according to claim 5, it is characterised in that described device also includes：
Second acquisition module, for during the motor operation, periodically obtaining the amplitude that the driven equipment is produced
And the working frequency of the motor；
Second setup module, for being run when the motor with the first working frequency so that the amplitude that the driven equipment is produced
The number of times of amplitude is preset more than second more than in the case of preset times, first working frequency is set to the motor
Frequency hopping point.
7. device according to claim 5, it is characterised in that described device also includes：
Receiving module, the second working frequency of the motor for receiving network side transmission；
Reminding module, if identical with the frequency hopping point of the motor for second working frequency, sends alarm prompt；
Determining module, if confirming the instruction message of second working frequency for being received after the alarm prompt is sent,
Then determine the target operating frequency of the motor based on second working frequency, the target operating frequency and described the
Two working frequencies are different.
8. device according to claim 7, it is characterised in that the determining module, including：
First obtains unit, for increasing preset value on the basis of second working frequency, obtains the first calibration frequency；
Second obtaining unit, for subtracting the preset value on the basis of second working frequency, obtains the second calibration frequency
Rate；
Control unit, for controlling the motor with predetermined period with first calibration frequency and second calibration frequency
Alternate run.
9. a kind of electric machinery control device, it is characterised in that the equipment includes：
Motor, vibration detection device and control device；
The vibration detection device is used for the amplitude for detecting that driven equipment is produced, and the motor is used to drive described to be set by driving
It is standby；
The work of corresponding motor when the control device is for obtaining the amplitude of driven equipment generation more than the first default amplitude
Working frequency scope, by the frequency hopping point that each set of frequency in the operating frequency range is the motor；According to the frequency hopping point
The motor is controlled.
10. equipment according to claim 9, it is characterised in that the vibration detection device is arranged at the motor internal,
The vibration detection device includes displacement detector or acceleration detecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369067.6A CN107294472B (en) | 2017-05-23 | 2017-05-23 | Motor control method, device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369067.6A CN107294472B (en) | 2017-05-23 | 2017-05-23 | Motor control method, device and equipment |
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| Publication Number | Publication Date |
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| CN107294472A true CN107294472A (en) | 2017-10-24 |
| CN107294472B CN107294472B (en) | 2019-05-03 |
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ID=60094587
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710369067.6A Active CN107294472B (en) | 2017-05-23 | 2017-05-23 | Motor control method, device and equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108134554A (en) * | 2017-12-12 | 2018-06-08 | 青岛海尔空调器有限总公司 | The adjusting method and device of motor operation frequency |
| CN108134556A (en) * | 2017-12-12 | 2018-06-08 | 青岛海尔空调器有限总公司 | The adjusting method and device of motor operation frequency |
| CN108134555A (en) * | 2017-12-12 | 2018-06-08 | 青岛海尔空调器有限总公司 | The adjusting method and device of motor operation frequency |
| CN108199628A (en) * | 2017-12-12 | 2018-06-22 | 青岛海尔空调器有限总公司 | The processing method and device of motor resonance noise |
| CN108917085A (en) * | 2018-07-16 | 2018-11-30 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| CN108917121A (en) * | 2018-07-16 | 2018-11-30 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| CN108954654A (en) * | 2018-07-16 | 2018-12-07 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| CN110094451A (en) * | 2019-03-28 | 2019-08-06 | 杨松 | A kind of control method, device and computer equipment for evading structural member resonance |
| CN111568107A (en) * | 2019-02-18 | 2020-08-25 | 杨松 | Electric bed and resonance prevention method thereof |
| CN114278547A (en) * | 2021-12-13 | 2022-04-05 | 威乐(中国)水泵系统有限公司 | A resonance suppression method, device and system for an electronically controlled pump system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108134554A (en) * | 2017-12-12 | 2018-06-08 | 青岛海尔空调器有限总公司 | The adjusting method and device of motor operation frequency |
| CN108134556A (en) * | 2017-12-12 | 2018-06-08 | 青岛海尔空调器有限总公司 | The adjusting method and device of motor operation frequency |
| CN108134555A (en) * | 2017-12-12 | 2018-06-08 | 青岛海尔空调器有限总公司 | The adjusting method and device of motor operation frequency |
| CN108199628A (en) * | 2017-12-12 | 2018-06-22 | 青岛海尔空调器有限总公司 | The processing method and device of motor resonance noise |
| CN108954654A (en) * | 2018-07-16 | 2018-12-07 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| CN108917121A (en) * | 2018-07-16 | 2018-11-30 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| CN108917085A (en) * | 2018-07-16 | 2018-11-30 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| CN108917121B (en) * | 2018-07-16 | 2020-05-19 | 奥克斯空调股份有限公司 | Air conditioner and control method and control device thereof |
| CN108917085B (en) * | 2018-07-16 | 2020-06-16 | 奥克斯空调股份有限公司 | Air conditioner and control method and control device thereof |
| CN108954654B (en) * | 2018-07-16 | 2021-03-30 | 奥克斯空调股份有限公司 | Air conditioner and control method and control device thereof |
| CN111568107A (en) * | 2019-02-18 | 2020-08-25 | 杨松 | Electric bed and resonance prevention method thereof |
| CN111568107B (en) * | 2019-02-18 | 2022-04-29 | 杨松 | Electric bed and resonance prevention method thereof |
| CN110094451A (en) * | 2019-03-28 | 2019-08-06 | 杨松 | A kind of control method, device and computer equipment for evading structural member resonance |
| CN114278547A (en) * | 2021-12-13 | 2022-04-05 | 威乐(中国)水泵系统有限公司 | A resonance suppression method, device and system for an electronically controlled pump system |
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