CN103715946B - Motor start-up method, motor starter and motor - Google Patents
Motor start-up method, motor starter and motor Download PDFInfo
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- CN103715946B CN103715946B CN201310713880.2A CN201310713880A CN103715946B CN 103715946 B CN103715946 B CN 103715946B CN 201310713880 A CN201310713880 A CN 201310713880A CN 103715946 B CN103715946 B CN 103715946B
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- 238000010586 diagram Methods 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 5
- 230000011218 segmentation Effects 0.000 description 5
- 230000008450 motivation Effects 0.000 description 4
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a kind of motor start-up method, a kind of motor starter and a kind of motor, wherein, described motor start-up method, including: there is the enabling signal of predetermined period to motor input, wherein, the described enabling signal in each cycle includes the pulse-width signal of the first duration and the stopping signal of the second duration, and the dutycycle of described pulse-width signal is incremented by with the input duration of described enabling signal；Detect the tach signal of described motor in real time；When the dutycycle described pulse-width signal being detected is 1 and/or the rotating speed of described motor reaches predetermined target value, determine that described motor start-up completes.Pass through technical scheme, it is to avoid during motor start-up, produce bigger noise, when avoiding motor start-up, enter rotation-clogging protection simultaneously, cause motor start-up failure.
Description
Technical field
The present invention relates to motor technology field, in particular to a kind of motor start-up method,
A kind of motor starter and a kind of motor.
Background technology
In the related, for the startup of dc motor, generally there are two kinds of methods, the first side
Method is to use the mode directly initiated, but the startup noise of motor is bigger；Second method is to adopt
By the mode of progressively speed-adjusting start, but when the load torque of motor is bigger, can not when low speed
Start, cause the startup time of motor to judge the time more than the stall of motor so that motor enters
Rotation-clogging protection, causes electric motor starting failure.
Therefore, how to avoid producing bigger noise during motor start-up, avoid motor start-up simultaneously
Time enter rotation-clogging protection and become technical problem urgently to be resolved hurrily.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art or correlation technique.
To this end, it is an object of the present invention to propose one it can be avoided that produce during motor start-up
Bigger noise, avoids entering during motor start-up the motor start-up method of rotation-clogging protection simultaneously.
Further object is that and propose a kind of motor starter.
A further object of the present invention is to propose a kind of motor.
For achieving the above object, embodiment according to the first aspect of the invention, it is proposed that a kind of electronic
Machine starts method, including: there is the enabling signal of predetermined period to motor input, wherein, each
The described enabling signal in cycle includes the pulse-width signal of the first duration and the stopping letter of the second duration
Number, and the dutycycle of described pulse-width signal is incremental with the input duration of described enabling signal；In real time
Detect the tach signal of described motor；It is 1 He in the dutycycle described pulse-width signal being detected
/ or time the rotating speed of described motor reaches predetermined target value, determine that described motor start-up completes.
Motor start-up method according to embodiments of the present invention, by motor input predetermined period
Enabling signal, and the enabling signal in each cycle includes pulse-width signal, and make pulsewidth modulation believe
Number dutycycle be incremented by so that motor can progressively acceleration start, it is to avoid directly initiate generation
Bigger noise.
By including stopping signal in the enabling signal in each cycle, motor can be enable to adopt
Progressively start by the mode of interval segmentation, it is to avoid when the starting torque deficiency of motor, continue to
Motor input pulse-width signal, causes the startup time of motor to judge more than the stall of motor
Time, cause motor start-up failure.
It addition, motor start-up method according to the above embodiment of the present invention, it is also possible to have the most attached
The technical characteristic added:
According to one embodiment of present invention, described first duration judges less than the stall of described motor
Time.
Motor start-up method according to embodiments of the present invention, by making the of input pulse-width signal
One duration judges the time less than the stall of motor, and the starting torque at motor can be avoided not enough
Time, continue to input pulse-width signal to motor, cause the startup time of motor to exceed electronic
The stall of machine judges the time, makes motor enter rotation-clogging protection, and then causes motor start-up failure.
According to one embodiment of present invention, the dutycycle of described pulse-width signal starts letter with described
Number the step that is incremented by of input duration particularly as follows: often through described predetermined period, described pulsewidth modulation is believed
Number dutycycle increase predetermined value.
Motor start-up method according to embodiments of the present invention, the dutycycle of pulse-width signal is often passed through
The predetermined value that predetermined period increases can be configured according to the demand of user, if user needs electronic
Machine quickly starts, then this predetermined value can be set to bigger numerical value, such as 40%(the most also
Can be other numerical value, such as 25%, 30% etc.), thus quickly start motor.If user needs
Want slow start motor, then this predetermined value can be set to less numerical value, such as 1%,
2% etc..
According to one embodiment of present invention, described predetermined period is equal to described first duration and described the
Two duration sums, and described first duration is more than or equal to described second duration.
Motor start-up method according to embodiments of the present invention, during by the input that makes pulse-width signal
It is long more than or equal to the input duration stopping signal, it can be ensured that motor can progressively start,
Avoid stop signal input duration excessive, cause motor stop input pulse-width signal after,
Motor enters again halted state in the input duration stopping signal, causes motor not start.
According to one embodiment of present invention, the initial duty cycle of described pulse-width signal be 10% to
50%。
According to one embodiment of present invention, also include after described motor start-up completes determining:
Signal is driven, to drive described electric motor operation to described motor input continuous print.
Motor start-up method according to embodiments of the present invention, after motor start-up, in order to ensure
Motor is persistently operated, and can drive signal to motor input continuous print.
Embodiment according to a second aspect of the present invention, it is also proposed that a kind of motor starter, bag
Include: signal generating unit, for producing the enabling signal of predetermined period, wherein, opening of each cycle
Dynamic signal includes the pulse-width signal of the first duration and the stopping signal of the second duration, and described pulsewidth
The dutycycle of modulated signal is incremented by with the input duration of described enabling signal；Signal output unit, connects
To the control end of motor, export extremely for the described enabling signal that described signal generating unit is produced
Described motor；Detector unit, for the tach signal of the described motor of detection in real time；Judge single
Unit, for judging dutycycle and/or the rotating speed of described motor of described pulse-width signal, works as institute
Stating dutycycle is 1 and/or time the rotating speed of described motor reaches predetermined target value, determines described electronic
Machine has started.
Motor starter according to embodiments of the present invention, by motor input predetermined period
Enabling signal, and the enabling signal in each cycle includes pulse-width signal, and make pulsewidth modulation believe
Number dutycycle be incremented by so that motor can progressively acceleration start, it is to avoid directly initiate generation
Bigger noise.
By including stopping signal in the enabling signal in each cycle, motor can be enable to adopt
Progressively start by the mode of interval segmentation, it is to avoid when the starting torque deficiency of motor, continue to
Motor input pulse-width signal, causes the startup time of motor to judge more than the stall of motor
Time, cause motor start-up failure.
According to one embodiment of present invention, described first duration judges less than the stall of described motor
Time.
Motor starter according to embodiments of the present invention, by making the of input pulse-width signal
One duration judges the time less than the stall of motor, and the starting torque at motor can be avoided not enough
Time, continue to input pulse-width signal to motor, cause the startup time of motor to exceed electronic
The stall of machine judges the time, makes motor enter rotation-clogging protection, and then causes motor start-up failure.
According to one embodiment of present invention, described signal generating unit is additionally operable to: judge list described
After unit determines that described motor start-up completes, produce continuous print and drive signal；The output of described signal is single
Unit is additionally operable to: by the output of described driving signal to described motor, to drive described electric motor operation.
Motor starter according to embodiments of the present invention, after motor start-up, in order to ensure
Motor is persistently operated, and can drive signal to motor input continuous print.
Embodiment according to a third aspect of the present invention, it is also proposed that a kind of motor, including: control
End, is connected to the motor starter described in any of the above-described embodiment, is used for receiving described motor
The enabling signal that starter sends, so that described motor starts.
The additional aspect of the present invention and advantage will part be given in the following description, and part will be from following
Description in become obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Embodiment is retouched by the above-mentioned and/or additional aspect of the present invention and advantage from combining accompanying drawings below
Will be apparent from easy to understand in stating, wherein:
Fig. 1 shows the schematic flow diagram of motor start-up method according to an embodiment of the invention；
Fig. 2 shows the schematic block diagram of motor starter according to an embodiment of the invention；
Fig. 3 shows the connection knot of motor starter and motor according to an embodiment of the invention
Structure schematic diagram；
Fig. 4 shows the exemplary flow of motor start-up method according to another embodiment of the invention
Figure；
Fig. 5 shows the waveform diagram of motor start-up signal according to an embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but,
The present invention can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
Fig. 1 shows the schematic flow diagram of motor start-up method according to an embodiment of the invention.
As it is shown in figure 1, motor start-up method according to an embodiment of the invention, including: step
102, there is to motor input the enabling signal of predetermined period, wherein, open described in each cycle
Dynamic signal includes the pulse-width signal of the first duration and the stopping signal of the second duration, and described pulsewidth
The dutycycle of modulated signal is incremented by with the input duration of described enabling signal；Step 104, detects in real time
The tach signal of described motor；Step 106, in the dutycycle described pulse-width signal being detected
It is 1 and/or time the rotating speed of described motor reaches predetermined target value, determines that described motor start-up is complete
Become.
By the enabling signal to motor input predetermined period, and the enabling signal in each cycle is wrapped
Include pulse-width signal, and make the dutycycle of pulse-width signal be incremented by so that motor can be progressively
Acceleration starts, it is to avoid directly initiates and produces bigger noise.
By including stopping signal in the enabling signal in each cycle, motor can be enable to adopt
Progressively start by the mode of interval segmentation, it is to avoid when the starting torque deficiency of motor, continue to
Motor input pulse-width signal, causes the startup time of motor to judge more than the stall of motor
Time, cause motor start-up failure.
It addition, motor start-up method according to the above embodiment of the present invention, it is also possible to have the most attached
The technical characteristic added:
According to one embodiment of present invention, described first duration judges less than the stall of described motor
Time.
By making the first duration of input pulse-width signal judge the time less than the stall of motor, can
To avoid when the starting torque deficiency of motor, continue to input pulse-width signal to motor, make
The startup time becoming motor has exceeded the stall of motor and has judged the time, makes motor enter stall and protects
Protect, and then cause motor start-up failure.
According to one embodiment of present invention, the dutycycle of described pulse-width signal starts letter with described
Number the step that is incremented by of input duration particularly as follows: often through described predetermined period, described pulsewidth modulation is believed
Number dutycycle increase predetermined value.
The predetermined value that the dutycycle of pulse-width signal often increases through predetermined period can be according to user
Demand be configured, if user needs motor quickly to start, then this predetermined value can be arranged
Can certainly be other numerical value for bigger numerical value, such as 40%(, such as 25%, 30%
Deng), thus quickly start motor.If user needs slow start motor, then can be pre-by this
Fixed number value is set to less numerical value, and such as 1%, 2% etc..
According to one embodiment of present invention, described predetermined period is equal to described first duration and described the
Two duration sums, and described first duration is more than or equal to described second duration.
By making the input duration input duration more than or equal to stopping signal of pulse-width signal, can
To guarantee that motor can progressively start, it is to avoid the input duration stopping signal is excessive, causes electricity
Motivation is after stopping input pulse-width signal, and motor enters again in the input duration stopping signal
Halted state, causes motor not start.
According to one embodiment of present invention, the initial duty cycle of described pulse-width signal be 10% to
50%。
According to one embodiment of present invention, also include after described motor start-up completes determining:
Signal is driven, to drive described electric motor operation to described motor input continuous print.
After motor start-up, persistently it is operated in order to ensure motor, can be defeated to motor
Enter continuous print and drive signal.
Fig. 2 shows the schematic block diagram of motor starter according to an embodiment of the invention.
As in figure 2 it is shown, motor starter 200 according to an embodiment of the invention, including: letter
Number generating unit 202, for producing the enabling signal of predetermined period, wherein, the startup in each cycle
Signal includes the pulse-width signal of the first duration and the stopping signal of the second duration, and described pulsewidth is adjusted
The dutycycle of signal processed is incremented by with the input duration of described enabling signal；Signal output unit 204, even
It is connected to the control end of motor, for the described enabling signal output produced by described signal generating unit
To described motor；Detector unit 206, for the tach signal of the described motor of detection in real time；Sentence
Cell 208, for judging the dutycycle of described pulse-width signal and/or turning of described motor
Speed, when described dutycycle is 1 and/or the rotating speed of described motor reaches predetermined target value, determines
Described motor start-up completes.
By the enabling signal to motor input predetermined period, and the enabling signal in each cycle is wrapped
Include pulse-width signal, and make the dutycycle of pulse-width signal be incremented by so that motor can be progressively
Acceleration starts, it is to avoid directly initiates and produces bigger noise.
By including stopping signal in the enabling signal in each cycle, motor can be enable to adopt
Progressively start by the mode of interval segmentation, it is to avoid when the starting torque deficiency of motor, continue to
Motor input pulse-width signal, causes the startup time of motor to judge more than the stall of motor
Time, cause motor start-up failure.
According to one embodiment of present invention, described first duration judges less than the stall of described motor
Time.
By making the first duration of input pulse-width signal judge the time less than the stall of motor, can
To avoid when the starting torque deficiency of motor, continue to input pulse-width signal to motor, make
The startup time becoming motor has exceeded the stall of motor and has judged the time, makes motor enter stall and protects
Protect, and then cause motor start-up failure.
According to one embodiment of present invention, described signal generating unit 202 is additionally operable to: sentence described
After cell 208 determines that described motor start-up completes, produce continuous print and drive signal；Described letter
Number output unit 204 is additionally operable to: by described driving signal output to described motor, described to drive
Electric motor operation.
After motor start-up, persistently it is operated in order to ensure motor, can be defeated to motor
Enter continuous print and drive signal.
Fig. 3 shows the connection knot of motor starter and motor according to an embodiment of the invention
Structure schematic diagram.
As it is shown on figure 3, the power end of motor 302 (positive power source terminal 3026 and negative power end
3028) power end VCC and earth terminal, motor in motor starter 304 it are respectively connecting to
Starter 304 sends enabling signal to the control end 3024 of motor 302, to start motor
302.Wherein, motor starter 304 can include single-chip microcomputer.
The rotary speed information of motor 302 is sent by motor 302 by feedback signal output 3022
To motor starter 304, so that motor starter 304 is according to the rotating speed of motor 302
Judge whether motor 302 has started.
Fig. 4 shows the exemplary flow of motor start-up method according to another embodiment of the invention
Figure.
As shown in Figure 4, motor start-up method according to another embodiment of the invention, including:
Step 402, motor starter initializes.
Step 404, to the pulse-width signal t that motor input duty cycle is n1Time, to start
Motor also detects the tach signal of described motor in real time, wherein t1< when the stall of motor judges
Between, it is to avoid when the starting torque of motor is less, the time of input pulse-width signal is more than electronic
The stall of machine judges the time, causes motor to enter rotation-clogging protection, causes motor start-up failure.
Step 406, it is judged that whether dutycycle n of pulse-width signal is less than 1 and/or described motor
Rotating speed whether less than predetermined target value, the most then perform step 408；Otherwise, step is performed
412。
Step 408, input stops signal t2Time.
Step 410, dutycycle increases predetermined value, using the dutycycle as pulse-width signal, continues
Continuous execution step 404.
Wherein, predetermined value can be configured according to the demand of user, if user needs motor fast
Speed starts, then this predetermined value can be set to bigger numerical value, such as 40%(can certainly
It is other numerical value, such as 25%, 30% etc.), thus quickly start motor.If user needs slowly
Speed starts motor, then this predetermined value can be set to less numerical value, and such as 1%, 2%
Deng.
Step 412, judging dutycycle, not less than 1 and/or the rotating speed of described motor is not less than predetermined
Desired value, i.e. dutycycle reach predetermined target value the two condition at least equal to the rotating speed of 1 and motor
When meeting a condition, determine that motor start-up completes, perform next step program, such as input and continue
Stable driving signal, drives motor to be operated.
According to above step, enabling signal 502 as shown in Figure 5, one of them cycle can be produced
The enabling signal 502 of T includes t1The pulse-width signal of time and t2The stopping signal of time, and arteries and veins
The dutycycle of wide modulated signal often increases predetermined value through cycle T so that motor can be by
Step acceleration starts, it is to avoid directly initiates and produces bigger noise.Meanwhile, motor energy can be made
Enough modes using interval segmentation progressively start, it is to avoid when the starting torque deficiency of motor, continue
Continue and input pulse-width signal to motor, cause the startup time stall more than motor of motor
The judgement time, cause motor start-up failure.
When detecting that dutycycle is 1 and/or the rotating speed of motor reaches predetermined target value, determine electricity
Motivation has started, and exports continual and steady driving signal 504, drives electric motor operation.
Technical scheme is described in detail, it is contemplated that in the related above in association with accompanying drawing,
Generally having two kinds of methods to start motor, first method is to use the mode directly initiated, but electric
The startup noise of motivation is bigger；Second method is the mode using progressively speed-adjusting start, but at electricity
When the load torque of motivation is bigger, can not start when low speed, cause the startup time of motor to be more than
The stall of motor judges the time so that motor enters rotation-clogging protection, causes electric motor starting failure.Cause
This, the present invention proposes a kind of new motor start-up scheme, and motor can be made progressively to accelerate to open
Dynamic, it is to avoid to directly initiate and produce bigger noise, simultaneously, it is to avoid not enough at the starting torque of motor
Time, continue to input pulse-width signal to motor, cause the startup time of motor more than motor
Stall judge the time, cause motor start-up failure.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (10)
1. a motor start-up method, it is characterised in that including:
There is the enabling signal of predetermined period, wherein, the described startup in each cycle to motor input
Signal includes the pulse-width signal of the first duration and the stopping signal of the second duration, and described pulsewidth is adjusted
The dutycycle of signal processed is incremented by with the input duration of described enabling signal；
Detect the tach signal of described motor in real time；
It is 1 and/or the turn up of described motor in the dutycycle described pulse-width signal being detected
During to predetermined target value, determine that described motor start-up completes.
Motor start-up method the most according to claim 1, it is characterised in that described first
Duration judges the time less than the stall of described motor.
Motor start-up method the most according to claim 1, it is characterised in that described pulsewidth
The dutycycle of modulated signal with described enabling signal input duration be incremented by step particularly as follows:
Often through described predetermined period, the dutycycle of described pulse-width signal increases predetermined value.
Motor start-up method the most according to claim 1, it is characterised in that described predetermined
Cycle is equal to described first duration and described second duration sum, and described first duration is more than or equal to
Described second duration.
Motor start-up method the most according to claim 1, it is characterised in that described pulsewidth
The initial duty cycle of modulated signal is 10% to 50%.
Motor start-up method the most according to any one of claim 1 to 5, its feature exists
In, also include after described motor start-up completes determining:
Signal is driven, to drive described electric motor operation to described motor input continuous print.
7. a motor starter, it is characterised in that including:
Signal generating unit, for producing the enabling signal of predetermined period, wherein, opening of each cycle
Dynamic signal includes the pulse-width signal of the first duration and the stopping signal of the second duration, and described pulsewidth
The dutycycle of modulated signal is incremented by with the input duration of described enabling signal；
Signal output unit, is connected to the control end of motor, for being produced by described signal generating unit
Raw described enabling signal output is to described motor；
Detector unit, for the tach signal of the described motor of detection in real time；
Identifying unit, for judging the dutycycle of described pulse-width signal and/or described motor
Rotating speed, when described dutycycle is 1 and/or the rotating speed of described motor reaches predetermined target value, really
Fixed described motor start-up completes.
Motor starter the most according to claim 7, it is characterised in that described first
Duration judges the time less than the stall of described motor.
9. according to the motor starter described in claim 7 or 8, it is characterised in that described
Signal generating unit is additionally operable to: after described identifying unit determines that described motor start-up completes, and produces
Raw continuous print drives signal；
Described signal output unit is additionally operable to: by the output of described driving signal to described motor, to drive
Dynamic described electric motor operation.
10. a motor, it is characterised in that including:
Control end, be connected to the motor starter according to any one of claim 7 to 9, use
In receiving the enabling signal that described motor starter sends, so that described motor starts.
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| CN201310713880.2A CN103715946B (en) | 2013-12-19 | 2013-12-19 | Motor start-up method, motor starter and motor |
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| CN201310713880.2A CN103715946B (en) | 2013-12-19 | 2013-12-19 | Motor start-up method, motor starter and motor |
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| CN105186932A (en) * | 2014-05-26 | 2015-12-23 | 珠海格力电器股份有限公司 | Method for controlling starting rotating speed of direct current motor |
| CN105162374B (en) * | 2015-08-27 | 2018-05-01 | 深圳市沛城电子科技有限公司 | The startup control method and device of brshless DC motor |
| CN106487281A (en) * | 2015-09-02 | 2017-03-08 | 中国航空工业第六八研究所 | A kind of software start-up method of control high-voltage motor PWM output |
| CN105322833B (en) * | 2015-11-13 | 2018-06-01 | 广东美的制冷设备有限公司 | Air conditioner and the startup control method of direct current generator and startup control device |
| CN110768588A (en) * | 2018-07-26 | 2020-02-07 | 比亚迪股份有限公司 | Control method and device for adjusting motor, storage medium and vehicle |
| WO2021121345A1 (en) | 2019-12-19 | 2021-06-24 | 青岛海信激光显示股份有限公司 | Laser projection device and start method and shutdown method thereof |
| CN111025832B (en) * | 2019-12-19 | 2021-12-07 | 青岛海信激光显示股份有限公司 | Laser projection equipment and starting method and shutdown method thereof |
| CN111312125B (en) * | 2019-12-19 | 2021-11-16 | 青岛海信激光显示股份有限公司 | Laser projection equipment and starting method and shutdown method thereof |
| CN111312126B (en) * | 2019-12-19 | 2021-11-16 | 青岛海信激光显示股份有限公司 | Laser projection device |
| CN116530843B (en) * | 2023-05-25 | 2024-03-12 | 九阳股份有限公司 | Control method of air fryer |
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| 基于AVR的直流电机软启动器的设计;李枝俊;《中国优秀硕士学位论文全文数据库工程科技II辑》;20091015(第10期);第C042-57页 * |
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