CN107482956A - A kind of method and device in controlled motor dragging stage, a kind of motor - Google Patents

A kind of method and device in controlled motor dragging stage, a kind of motor Download PDF

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Publication number
CN107482956A
CN107482956A CN201710730339.0A CN201710730339A CN107482956A CN 107482956 A CN107482956 A CN 107482956A CN 201710730339 A CN201710730339 A CN 201710730339A CN 107482956 A CN107482956 A CN 107482956A
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CN
China
Prior art keywords
speed
rotor
rotating vector
dragging
target speed
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CN201710730339.0A
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Chinese (zh)
Inventor
李昱兵
陈跃
涂小平
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Hefei Meiling Union Technology Co Ltd
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Mianyang Meiling Software Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201710730339.0A priority Critical patent/CN107482956A/en
Publication of CN107482956A publication Critical patent/CN107482956A/en
Pending legal-status Critical Current

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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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters

Abstract

The invention provides a kind of method and device in controlled motor dragging stage, a kind of motor, the method in controlled motor dragging stage includes：Preset the target speed of dragging time threshold, rotating vector and rotor；According to the target speed and the dragging time threshold, frequency acceleration is determined；The speed of the rotating vector is controlled to change according to the frequency acceleration；In real time according to the currency of the speed of the rotating vector, draw the rotor and rotate, and whether the speed of rotor described in real-time judge reaches the target speed, if it is, triggering speed closed loop control.Technical scheme provided by the invention can improve the reliability of electric motor starting.

Description

A kind of method and device in controlled motor dragging stage, a kind of motor
Technical field
The present invention relates to electronic technology field, more particularly to a kind of method and device, the one kind in controlled motor dragging stage Motor.
Background technology
Electric motor starting method be typically first location current is increased to according to certain default acceleration from 0 it is default fixed Position target current, further according to the difference of positioning target current and detection current value, closed-loop current control is carried out to motor.Then drag Rotor rotates, when counter electromotive force caused by rotor rotation is sufficiently large, the actual measurement rotating speed and speed setting value of motor Difference is produced, can be realized using this species diversity and speed closed loop control is carried out to motor, so as to complete the startup work of motor.
In the motor drag stage, in order that counter electromotive force caused by rotor rotation is sufficiently large, it will usually increase dragging Electric current, to improve the rotating speed of rotor.
But aforesaid way is likely to result in motor desynchronizing, or even rotor is triggered to rotate backward, so as to reduce electricity The reliability that machine starts.
The content of the invention
The embodiments of the invention provide a kind of method and device in controlled motor dragging stage, a kind of motor, it is possible to increase The reliability of electric motor starting.
In a first aspect, the embodiments of the invention provide a kind of controlled motor dragging the stage method, when presetting dragging Between threshold value, rotating vector and rotor target speed, including：
According to the target speed and the dragging time threshold, frequency acceleration is determined；
The speed of the rotating vector is controlled to change according to the frequency acceleration；
In real time according to the currency of the speed of the rotating vector, draw the rotor and rotate, and sentence in real time Whether the speed of the disconnected rotor reaches the target speed, if it is, triggering speed closed loop control.
Preferably, it is described according to the target speed and the dragging time threshold, frequency acceleration is determined, is wrapped Include：
According to following first formula, the frequency acceleration is determined：
Wherein, a characterizes the frequency acceleration；f0Characterize the target speed, t0Characterize the dragging time threshold Value.
Preferably, the speed of the control rotating vector changes according to the frequency acceleration, including：
The speed of the rotating vector is controlled to change according to the second formula, wherein, second formula is：
ft=a × t
Wherein, ftThe speed of the rotating vector under any time is characterized, a characterizes the frequency acceleration, and t is characterized The rotational time of the rotating vector.
Preferably, the dragging time threshold not less than 19ms and is not more than 21ms.
Preferably, the target speed not less than 7Hz and is not more than 9Hz.
Second aspect, the embodiments of the invention provide a kind of device in controlled motor dragging stage, including：Setting module, Computing module, control module and traction module；
The setting module, for setting dragging time threshold, rotating vector and the target speed of rotor；
The computing module, for the target speed set according to the setting module and the dragging time Threshold value, determine frequency acceleration；
The control module, for controlling described in the speed of the rotating vector obtains according to the computing module Frequency acceleration changes；
The traction module, for according to the currency of the speed of the rotating vector, drawing the motor in real time Rotor rotates, and whether the speed of rotor described in real-time judge reaches the target speed, if it is, touching Send out speed closed loop control.
Preferably, the computing module, for according to following first formula, determining the frequency acceleration：
Wherein, a characterizes the frequency acceleration；f0Characterize the target speed, t0Characterize the dragging time threshold Value.
Preferably, the control module, for controlling the speed of the rotating vector to change according to the second formula, its In, second formula is：
ft=a × t
Wherein, ftThe speed of the rotating vector under any time is characterized, a characterizes the speed acceleration, t Characterize the rotational time of the rotating vector.
Preferably, the dragging time threshold not less than 19ms and is not more than 21ms.
Preferably, the target speed not less than 7Hz and is not more than 9Hz.
3rd fermentation, the embodiments of the invention provide a kind of motor, including：Any institute in rotor and second aspect State the device in controlled motor dragging stage.
The embodiments of the invention provide a kind of method and device in controlled motor dragging stage, a kind of motor, pre-set The target speed of time threshold, rotating vector and rotor is dragged, rotating vector being capable of the rotation of traction electric machine rotor；Drag Dynamic time threshold defines the time in motor drag stage, if dragging overlong time, can cause rotating vector at a time Traction electric machine rotor rotates along with former direction in opposite direction；Target speed defines rotor in motor drag rank The maximum speed of section, if the speed of rotor is excessive, it is necessary to which high current is so as to triggering electric motor starting unstable Fixed, when the speed of rotor reaches target speed, counter electromotive force caused by rotor rotation can make electricity The actual measurement rotating speed of machine produces difference with speed setting value, so as to trigger speed closed loop control.After the motor drag stage is entered, root Frequency acceleration is calculated according to the target speed of dragging time threshold and rotor；Further according to frequency acceleration, control rotation The speed for turning vector becomes larger；Using rotating vector traction electric machine rotor, rotor is set to progressively increase to target rotation Turn frequency and trigger speed closed loop control.As can be seen here, technical scheme provided in an embodiment of the present invention is by limiting motor drag The time in stage and the maximum speed of rotor, farthest avoid the occurrence of rotor step-out, the feelings of reversion Condition, so as to improve the reliability of electric motor starting.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of method flow diagram in controlled motor dragging stage that one embodiment of the invention provides；
Fig. 2 is the method flow diagram in another controlled motor dragging stage that one embodiment of the invention provides；
Fig. 3 is the position view of the rotating vector that one embodiment of the invention provides and rotor；
Fig. 4 is a kind of structural representation of the device in controlled motor dragging stage that one embodiment of the invention provides；
Fig. 5 is a kind of structural representation for motor that one embodiment of the invention provides.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
The embodiments of the invention provide a kind of method in controlled motor dragging stage, including：
Preset the target speed of dragging time threshold, rotating vector and rotor；
According to the target speed and the dragging time threshold, frequency acceleration is determined；
The speed of the rotating vector is controlled to change according to the frequency acceleration；
In real time according to the currency of the speed of the rotating vector, draw the rotor and rotate, and sentence in real time Whether the speed of the disconnected rotor reaches the target speed, if it is, triggering speed closed loop control.
As shown in figure 1, the embodiments of the invention provide a kind of method in controlled motor dragging stage, comprise the following steps：
Step 101, the target speed of dragging time threshold, rotating vector and rotor is preset.
Step 102, according to the target speed and the dragging time threshold, frequency acceleration is determined.
Step 103, the speed of the rotating vector is controlled to change according to the frequency acceleration.
Step 104, draw the rotor according to the currency of the speed of the rotating vector in real time and rotate.
Step 105, whether the speed of rotor described in real-time judge reaches the target speed, if It is then to perform step 106；Otherwise, return to step 104.
Step 106, speed closed loop control is triggered.
The embodiments of the invention provide a kind of method in controlled motor dragging stage, pre-sets dragging time threshold, rotation Turn the target speed of vector rotor, rotating vector being capable of the rotation of traction electric machine rotor；Time threshold is dragged to limit The time in motor drag stage, if dragging overlong time, can cause rotating vector at a time traction electric machine rotor edge And rotated with former direction in opposite direction；Target speed defines maximum rotary frequency of the rotor in the motor drag stage Rate, if the speed of rotor is excessive, it is necessary to which high current is so as to trigger electric motor starting unstable, when rotor When speed reaches target speed, counter electromotive force caused by rotor rotation can make the actual measurement rotating speed of motor with turning Fast setting value produces difference, so as to trigger speed closed loop control.When enter the motor drag stage after, according to dragging time threshold and The target speed of rotor calculates frequency acceleration；Further according to frequency acceleration, the speed of rotating vector is controlled Become larger；Using rotating vector traction electric machine rotor, rotor is progressively increased to target speed and trigger rotating speed Closed-loop control.As can be seen here, technical scheme provided in an embodiment of the present invention is by limiting time and the electricity in motor drag stage The maximum speed of machine rotor, rotor step-out, the situation of reversion are farthest avoided the occurrence of, so as to improve electricity The reliability that machine starts.
Target speed can be reached for the speed of rotating vector, in one embodiment of the invention, institute State according to the target speed and the dragging time threshold, determine frequency acceleration, including：
According to following first formula, the frequency acceleration is determined：
Wherein, a characterizes the frequency acceleration；f0Characterize the target speed, t0Characterize the dragging time threshold Value.
For example, target speed is 10Hz, dragging time threshold is 2s, then frequency acceleration is 5Hz/s.
In order to when the dragging time reaching dragging time threshold, allow the speed of rotor can be with rotating vector Speed is basically identical, and in one embodiment of the invention, the speed of the control rotating vector is according to institute Frequency acceleration change is stated, including：
The speed of the rotating vector is controlled to change according to the second formula, wherein, second formula is：
ft=a × t
Wherein, ftThe speed of the rotating vector under any time is characterized, a characterizes the frequency acceleration, and t is characterized The rotational time of the rotating vector.
Because the angular speed of rotor is less than rotating vector, if the original frequency of rotating vector is f0, then rotation Vector is likely to enclose more than rotor one.In this process, rotating vector can cause rotor to reversely rotate.For example, Rotating vector and rotor initially rotate counterclockwise simultaneously, using the angle that rotating vector overlaps with rotor as 0 °, then when When angle between rotating vector and rotor is less than 180 °, rotating vector traction electric machine rotor rotates counterclockwise；Work as rotation When angle between vector and rotor is more than 180 °, rotating vector meeting traction electric machine rotor clockwise motion, and then cause Rotor inverts.Therefore, it is necessary to which the speed of rotating vector gradually is increased into target speed, to ensure rotation arrow Amount and the angle of rotor are less than 180 °.
In one embodiment of the invention, the dragging time threshold not less than 19ms and is not more than 21ms.
Dragging time threshold in the embodiment of the present invention is applied to the motor drag stage of the motor of refrigerator.
In one embodiment of the invention, the target speed not less than 7Hz and is not more than 9Hz.
Target speed in the embodiment of the present invention is applied to the motor drag stage of the motor of refrigerator.
In order to which the embodiment of the present invention is better described, as shown in Fig. 2 the embodiments of the invention provide another controlled motor The method in dragging stage, by taking refrigerator as an example, comprise the following steps：
Step 201, the target speed for setting dragging time threshold as 20ms, rotor is 8Hz, rotating vector.
In embodiments of the present invention, as shown in figure 3, rotating vector has certain angle α with rotor, angle is less than 90°.Now rotating vector rotates counterclockwise with rotor vertically-oriented component meeting traction electric machine rotor.The value of angle α It can be set according to actual conditions.
Step 202, according to the first formula, frequency acceleration is determined.
In embodiments of the present invention, according to step 201, as the target speed 8Hz that rotor reaches, rotation arrow The speed of amount is also 8Hz, therefore the first formula is as follows：
Wherein, a characterizes frequency acceleration；f0Characterize target speed, t0Characterize dragging time threshold.Dragged into motor After the dynamic stage, frequency acceleration a is first calculated, according to step 201, a=400Hz/s.
Step 203, the speed of rotating vector is controlled to change according to the second formula.
In embodiments of the present invention, the second formula is：
ft=a × t
Wherein, ftThe speed of rotating vector under any time is characterized, a characterizes frequency acceleration, and t characterizes rotating vector Rotational time.The speed of rotating vector increases to 8Hz according to formula two from 0.
Step 204, rotated in real time according to the currency of the speed of rotating vector, traction electric machine rotor.
In embodiments of the present invention, the target speed of rotor is 8Hz, and the rotation time in motor drag stage is 20ms, for rotor in initial position, the angle that rotor turns over is 0 °, and the rotation time in motor drag stage is divided into 10 calculating cycles, i.e., the duration Δ t=0.02s of each calculating cycle, then in a calculating cycle, the rotation of rotor Frequency incrementss Δ f=0.8Hz.Because the initial value of the speed of rotor is 0, so n-th of calculating cycle motor The speed of rotor is n Δs f.In summary, the angle, θ that each calculating cycle rotor turns overn=2 π n Δ f Δ t, its In, n characterizes n-th of calculating cycle.The angle that each calculating cycle rotor turns over is respectively：0.576 °, 1.152 °, 1.728 °, 2.304 °, 2.88 °, 3.456 °, 4.032 °, 4.608 °, 5.184 °, 5.76 °.To the electricity of above-mentioned ten calculating cycles The angle summation that machine rotor turns over, then total angle θ=31.68 ° that rotor turns over.As can be seen here, in the rotation of rotor When turning frequency and reaching target speed, angle very little that rotor turns over, be not in cylinder air-breathing compression situation, So as to inhibit back pressure to be significantly increased.Because the initial angular velocity of rotating vector is 0, and the change of its frequency is basic with rotor It is identical, therefore both in same time, the angle turned over is roughly the same.So as long as rotating vector and rotor is initial Corner dimension is reasonable, situation of the angle more than 180 ° of rotating vector and rotor would not occurs, so as to avoid the occurrence of electricity Machine rotor step-out or the situation of reversion.
Step 205, whether the speed of real-time judge rotor reaches target speed, if it is, performing step Rapid 206；Otherwise, return to step 204.
In embodiments of the present invention, in practical operation, the speed of rotor will not be exactly equal to target rotation Frequency, but fluctuated around target speed.Therefore, the motor if speed of rotor is not reaching to 8Hz The rotational time of rotor reaches 20ms, and rotor speed in error range, then it is considered that reaching triggering The condition of speed closed loop control.Similarly, if the frequency of rotor reaches 8Hz, the rotational time of rotor is not reaching to 20ms, it is also assumed that reaching the condition of triggering speed closed loop control.So in practical operation, it can set and reach triggering turn The condition of fast closed-loop control is：The frequency of rotor reaches 8Hz and/or the rotational time of rotor reaches 20ms.
Step 206, speed closed loop control is triggered.
In embodiments of the present invention, the work speed set after triggering speed closed loop control according to user and arrival The time of work speed forms new frequency acceleration, and rotating vector can continue traction electric machine according to new frequency acceleration Rotor rotates.
The method that the stage is dragged by controlled motor provided in an embodiment of the present invention, user can be existed with controlled motor rotor The rotational time and the anglec of rotation in motor drag stage, so as to reduce occur motor desynchronizing, rotor reversion probability, simultaneously The increasing degree of motor back pressure can also be effectively reduced, it is final to realize the purpose for improving electric motor starting reliability.
As shown in figure 4, the embodiments of the invention provide a kind of device in controlled motor dragging stage, including：Setting module 401st, computing module 402, control module 403 and traction module 404；
Setting module 401, for setting dragging time threshold, rotating vector and the target speed of rotor；
Computing module 402, for the target speed set according to setting module 401 and the dragging time threshold Value, determines frequency acceleration；
Control module 403, the frequency that the speed for controlling the rotating vector obtains according to computing module 402 Rate acceleration change；
Traction module 404, for according to the currency of the speed of the rotating vector, drawing the motor in real time and turning Son rotates, and whether the speed of rotor described in real-time judge reaches the target speed, if it is, triggering Speed closed loop control.
In an embodiment of the invention, computing module 402, for according to following first formula, determining that the frequency adds Speed：
Wherein, a characterizes the frequency acceleration；f0Characterize the target speed, t0Characterize the dragging time threshold Value.
In an embodiment of the invention, control module 403, for controlling the speed of the rotating vector according to Two formula change, wherein, second formula is：
ft=a × t
Wherein, ftThe speed of the rotating vector under any time is characterized, a characterizes the speed acceleration, t Characterize the rotational time of the rotating vector.
In an embodiment of the invention, the dragging time threshold not less than 19ms and is not more than 21ms.
In an embodiment of the invention, the target speed not less than 7Hz and is not more than 9Hz.
The contents such as the information exchange between each unit, implementation procedure in said apparatus, due to implementing with the inventive method Example is based on same design, and particular content can be found in the narration in the inventive method embodiment, and here is omitted.
As shown in figure 5, the embodiments of the invention provide a kind of motor, including：In rotor 501 and above-described embodiment The device 502 in any controlled motor dragging stage.
In summary, each embodiment of the present invention at least has the advantages that：
1st, in one embodiment of the invention, the target rotation of dragging time threshold, rotating vector and rotor is pre-set Frequency, rotating vector being capable of the rotations of traction electric machine rotor；Dragging time threshold defines the time in motor drag stage, if dragged Dynamic overlong time, causing rotating vector, at a time traction electric machine rotor rotates along with former direction in opposite direction；Mesh Mark speed defines maximum speed of the rotor in the motor drag stage, if the speed mistake of rotor Greatly, it is necessary to which high current is so as to trigger electric motor starting unstable, when the speed of rotor reaches target speed, Counter electromotive force caused by rotor rotation can make the actual measurement rotating speed of motor and speed setting value produce difference, turn so as to trigger Fast closed-loop control.After the motor drag stage is entered, calculated according to the target speed of dragging time threshold and rotor Frequency acceleration；Further according to frequency acceleration, the speed of rotating vector is controlled to become larger；Electricity is drawn using rotating vector Machine rotor, rotor is progressively increased to target speed and trigger speed closed loop control.As can be seen here, the present invention is implemented The technical scheme that example provides is by limiting the time in motor drag stage and the maximum speed of rotor, at utmost Ground avoids the occurrence of rotor step-out, the situation of reversion, so as to improve the reliability of electric motor starting.
2nd, be not in air-breathing compression by reducing the rotational angle of rotor, in cylinder in one embodiment of the invention Situation, so as to reduce back pressure increase amplitude, can be before greater back-pressure be produced so that motor enters speed closed loop control System, so as to further increase the reliability of electric motor starting.
3rd, in one embodiment of the invention, by neatly judgment mechanism, user is allow neatly to be controlled according to actual conditions Motor processed enters the opportunity of speed closed loop control, so as to further increase the reliability of electric motor starting.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity Or operation makes a distinction with another entity or operation, and not necessarily require or imply and exist between these entities or operation Any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant be intended to it is non- It is exclusive to include, so that process, method, article or equipment including a series of elements not only include those key elements, But also the other element including being not expressly set out, or also include solid by this process, method, article or equipment Some key elements.In the absence of more restrictions, the key element limited by sentence " including one ", is not arranged Except other identical factor in the process including the key element, method, article or equipment being also present.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through Programmed instruction related hardware is completed, and foregoing program can be stored in computer-readable storage medium, the program Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light Disk etc. is various can be with the medium of store program codes.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, is merely to illustrate the skill of the present invention Art scheme, is not intended to limit the scope of the present invention.Any modification for being made within the spirit and principles of the invention, Equivalent substitution, improvement etc., are all contained in protection scope of the present invention.

Claims (10)

  1. A kind of 1. method in controlled motor dragging stage, it is characterised in that preset dragging time threshold, rotating vector and electricity The target speed of machine rotor, including：
    According to the target speed and the dragging time threshold, frequency acceleration is determined；
    The speed of the rotating vector is controlled to change according to the frequency acceleration；
    In real time according to the currency of the speed of the rotating vector, draw the rotor and rotate, and real-time judge institute Whether the speed for stating rotor reaches the target speed, if it is, triggering speed closed loop control.
  2. 2. according to the method for claim 1, it is characterised in that
    It is described that frequency acceleration is determined according to the target speed and the dragging time threshold, including：
    According to following first formula, the frequency acceleration is determined：
    <mrow> <mi>a</mi> <mo>=</mo> <mfrac> <msub> <mi>f</mi> <mn>0</mn> </msub> <msub> <mi>t</mi> <mn>0</mn> </msub> </mfrac> </mrow>
    Wherein, a characterizes the frequency acceleration；f0Characterize the target speed, t0Characterize the dragging time threshold.
  3. 3. according to the method for claim 2, it is characterised in that
    The speed of the control rotating vector changes according to the frequency acceleration, including：
    The speed of the rotating vector is controlled to change according to the second formula, wherein, second formula is：
    ft=a × t
    Wherein, ftThe speed of the rotating vector under any time is characterized, a characterizes the frequency acceleration, described in t is characterized The rotational time of rotating vector.
  4. 4. according to any described method in claims 1 to 3, it is characterised in that
    The dragging time threshold is not less than 19ms and is not more than 21ms.
  5. 5. according to any described method in claims 1 to 3, it is characterised in that
    The target speed is not less than 7Hz and is not more than 9Hz.
  6. A kind of 6. device in controlled motor dragging stage, it is characterised in that including：Setting module, computing module, control module and Traction module；
    The setting module, for setting dragging time threshold, rotating vector and the target speed of rotor；
    The computing module, for the target speed set according to the setting module and the dragging time threshold Value, determines frequency acceleration；
    The control module, the frequency that the speed for controlling the rotating vector obtains according to the computing module Acceleration change；
    The traction module, for according to the currency of the speed of the rotating vector, drawing the rotor in real time Rotate, and whether the speed of rotor described in real-time judge reaches the target speed, if it is, triggering turns Fast closed-loop control.
  7. 7. device according to claim 6, it is characterised in that
    The computing module, for according to following first formula, determining the frequency acceleration：
    <mrow> <mi>a</mi> <mo>=</mo> <mfrac> <msub> <mi>f</mi> <mn>0</mn> </msub> <msub> <mi>t</mi> <mn>0</mn> </msub> </mfrac> </mrow>
    Wherein, a characterizes the frequency acceleration；f0Characterize the target speed, t0Characterize the dragging time threshold.
  8. 8. device according to claim 7, it is characterised in that
    The control module, for controlling the speed of the rotating vector to change according to the second formula, wherein, described second Formula is：
    ft=a × t
    Wherein, ftThe speed of the rotating vector under any time is characterized, a characterizes the speed acceleration, and t is characterized The rotational time of the rotating vector.
  9. 9. according to any described device in claim 6 to 8, it is characterised in that
    The dragging time threshold is not less than 19ms and is not more than 21ms；
    And/or
    The target speed is not less than 7Hz and is not more than 9Hz.
  10. A kind of 10. motor, it is characterised in that including：Any described controlled motor in rotor and claim 6 to 9 The device in dragging stage.
CN201710730339.0A 2017-08-23 2017-08-23 A kind of method and device in controlled motor dragging stage, a kind of motor Pending CN107482956A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108540016A (en) * 2018-04-28 2018-09-14 四川虹美智能科技有限公司 A kind of startup method and device of motor
CN115967303A (en) * 2023-02-14 2023-04-14 四川奥库科技有限公司 Variable frequency motor double-dragging control method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1098775A (en) * 1993-04-23 1995-02-15 株式会社东芝 The method for starting-controlling of the compressor in the air-conditioner
CN101860286A (en) * 2010-07-06 2010-10-13 中国北车股份有限公司大连电力牵引研发中心 Method for providing given frequency in motor starting phase
CN101917152A (en) * 2010-07-29 2010-12-15 宁波奥克斯空调有限公司 Starting method of permanent-magnet synchronous compressor for variable-frequency air conditioner
JP2014165278A (en) * 2013-02-22 2014-09-08 Hitachi High-Tech Instruments Co Ltd Method of controlling motor in mounting work device, and mounting work device
CN106533268A (en) * 2016-11-25 2017-03-22 北京动力机械研究所 Soft starting method of power output of micro gas turbine power station

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1098775A (en) * 1993-04-23 1995-02-15 株式会社东芝 The method for starting-controlling of the compressor in the air-conditioner
CN101860286A (en) * 2010-07-06 2010-10-13 中国北车股份有限公司大连电力牵引研发中心 Method for providing given frequency in motor starting phase
CN101917152A (en) * 2010-07-29 2010-12-15 宁波奥克斯空调有限公司 Starting method of permanent-magnet synchronous compressor for variable-frequency air conditioner
JP2014165278A (en) * 2013-02-22 2014-09-08 Hitachi High-Tech Instruments Co Ltd Method of controlling motor in mounting work device, and mounting work device
CN106533268A (en) * 2016-11-25 2017-03-22 北京动力机械研究所 Soft starting method of power output of micro gas turbine power station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108540016A (en) * 2018-04-28 2018-09-14 四川虹美智能科技有限公司 A kind of startup method and device of motor
CN115967303A (en) * 2023-02-14 2023-04-14 四川奥库科技有限公司 Variable frequency motor double-dragging control method

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