CN107658850A - The raising speed protection device and speed control method of high rotating speed DC brushless motor - Google Patents
The raising speed protection device and speed control method of high rotating speed DC brushless motor Download PDFInfo
- Publication number
- CN107658850A CN107658850A CN201711068121.XA CN201711068121A CN107658850A CN 107658850 A CN107658850 A CN 107658850A CN 201711068121 A CN201711068121 A CN 201711068121A CN 107658850 A CN107658850 A CN 107658850A
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- China
- Prior art keywords
- rotating speed
- brushless motor
- speed
- data
- high rotating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0811—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for dc motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/17—Circuit arrangements for detecting position and for generating speed information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of raising speed protection device of high rotating speed DC brushless motor, including, data acquisition module, the electric current and voltage signal of high rotating speed DC brushless motor, rotor beat and real-time rotating speed are gathered in real time；Data comparison module, data-signal and setting data are contrasted, obtain the difference of the data and setting data that gather in real time；Module is cut off, judges whether to cut off or stop increasing the electric current of the control system of high rotating speed DC brushless motor according to the difference of acquisition.The present invention changes the method that original artificial manual protection is changed into automatic protection motor boosting velocity procedure; pass through data acquisition; data comparison and according to data in good time decide whether cut off DC brushless motor control system power supply; using multi-stage stairs formula rising film condensation; ensure to continue multistage raising speed on the premise of safety and stability; high speed even superfast requirement is realized, the reliability of motor boosting velocity procedure is significantly increased.
Description
Technical field
The present invention relates to DC MOTOR CONTROL technical field, more particularly to a kind of raising speed of high rotating speed DC brushless motor
Protection device and speed control method.
Background technology
For the rotating speed of high rotating speed DC brushless motor at thousands of turns even more than 10,000 rpms, high rotating speed brush DC is electric
The rotor of machine starts by inactive state, improve rotating speed and stable operation during, be required to introduce electric machine control system to it
Operating carries out whole-process control, can improve its operational efficiency, reduces the risk that maloperation is brought, and existing control system high can not turn
DC brushless motor is accurately controlled under speed.
Especially in high rotating speed DC brushless motor in boosting velocity procedure, to ensure stable raising speed, conventional raising speed mode
It is by adjusting boosting velocity procedure manually, being readily incorporated human error, operational error, cause motor stator to be collided with rotor and fail, make
Into massive losses.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of high rotating speed brush DC electricity
The raising speed protection device and speed control method of machine.
Technical scheme is used by realize the purpose of the present invention：
A kind of raising speed protection device of high rotating speed DC brushless motor, including,
Data acquisition module, gathers the electric current and voltage signal of high rotating speed DC brushless motor in real time, rotor beat and
Real-time rotating speed；
Data comparison module, data-signal and setting data are contrasted, obtain the data gathered in real time and setting number
According to difference；
Module is cut off, judges whether to cut off or stop increasing the control of high rotating speed DC brushless motor according to the difference of acquisition
The electric current of system processed.
Data comparison module includes adder and comparator.
Data comparison module is special chip MC33039 or DSP digital signal processing chip.
High rotating speed DC brushless motor includes annular circuit board, set rectification module on circuit boards, controller and
Inversion module and 3 Hall sensors being distributed on described circuit board, described circuit board and DC brushless motor
Stator is fixedly connected and the perforation at center and the rotor of described DC brushless motor match, described stator, rotor and
Circuit board is coaxially disposed, and described Hall sensor is connected with described controller communication to calculate described real-time rotating speed.
Three described Hall sensors are uniformly distributed on circuit boards in 120 degree, and Hall corresponding with rotor zero degree passes
Sensor deviates the zero degree of described rotor.
0-7 ° of the zero degree left avertence of the relatively described rotor of one of Hall sensor.
The internal diameter of described perforation and the big 2-8mm of the external diameter of rotor.
Also include overcurrent protection module and the overvoltage protective module being connected with described controller communication.
Cut-out module is special chip MC33035.
The rotor of described high rotating speed DC brushless motor is two-layer columnar structure, and it is provided with inside and outside two layers of magnet.
A kind of speed control method of protection device, it is characterised in that
1) electric motor starting, current motor raising speed is persistently increased,
2) rotor beat and real-time rotating speed are detected in real time, after data-signal exceeds predetermined value, are stopped increase electric current and are simultaneously pressed
Setting amplitude progressively reduces electric current,
3) after data-signal is not more than predetermined value, stop reducing electric current and the stable scheduled time under the electric current,
4) continue to increase electric current；
5) continuation steps 2) -4) until rising to desired speed.
The described amplitude that sets reduces 0.01A as each second, and the described scheduled time is 3-10s.
Also include progressively reducing electric current by setting amplitude to slow down or cut off step during shutdown.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can use cheap, technology maturation high-speed digital video camera chip and various discrete electronics members
Part, make the protection device for the boosting velocity procedure that can control high rotating speed DC brushless motor, improve high rotating speed direct current without
The reliability and economy of brush motor boosting velocity procedure.
Brief description of the drawings
Fig. 1 show the structural representation of the high rotating speed the control system for non-brush direct currunt electromotors of the present invention.
Fig. 2 show the schematic diagram of the raising speed protection device of high rotating speed DC brushless motor.
Description of reference numerals：
1st, power supply；2nd, rectification module；3rd, controller；4th, inversion module；5th, DC brushless motor；6th, Hall sensor A；7、
Hall sensor B；8th, Hall sensor C；9th, overcurrent protection module；10th, under-voltage protective module.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
The raising speed protection device of the high rotating speed DC brushless motor of the present invention, including,
Data acquisition module, gathers the electric current and voltage signal of high rotating speed DC brushless motor in real time, rotor beat and
Real-time rotating speed；Wherein, electric current, voltage and rotor beat can using special chip etc. come realize detection, its similarly to the prior art,
Not reinflated description herein；
Data comparison module, data-signal and setting data are contrasted, obtain the data gathered in real time and setting number
According to difference；Described sets data as safe range, e.g., electric current safe range, beat safe range etc.；Data comparison module
Including adder and comparator.Data comparison module is carried out data-signal and setting data pair via adder and comparator
Than obtaining difference of the data gathered in real time with setting data；Also data comparison module can be used for special chip MC33039 or
DSP digital signal processing chips.This is similarly to the prior art.
Module is cut off, judges whether to cut off or stop increasing the control of high rotating speed DC brushless motor according to the difference of acquisition
The electric current of system processed.Special chip MC33035 can be used by such as cutting off module.
Real-time measurement electric current, voltage and rotating speed of the present invention, to monitor whole boosting velocity procedure, are adopted by multimode
Collection, the monitoring strategies of redundancy, raising speed stabilization is effectively ensured, while can realize that direct viewing type observes interface using electric current and voltage, such as
There is mutation failure in fruit raising speed rotating speed, then data-signal can exceed setting data, i.e. setting range in data comparison module, then
The control of electric current is carried out by relay or control signal, the control of electric current can be according to cut-off, the stopping for being set for electric current
Increase, slow down growth or reduce steadily etc..The device meets integrated level high, good economy performance while reasonable in design, it is possible to achieve
Raising speed protection is provided for high rotating speed DC brushless motor in boosting velocity procedure, prevents infringement of the abnormality to motor body.
The present invention can use cheap, technology maturation high-speed digital video camera chip and various discrete electronics members
Part, make the protection device for the boosting velocity procedure that can control high rotating speed DC brushless motor, improve high rotating speed direct current without
The reliability and economy of brush motor boosting velocity procedure.
Specifically, high rotating speed the control system for non-brush direct currunt electromotors of the invention includes annular circuit board, is arranged on circuit
Rectification module 2, controller 3 and inversion module 4 on plate and 3 Hall sensors 6 being distributed on described circuit board, 7,
8, described circuit board is fixedly connected with the stator of DC brushless motor 5 and the perforation at center and described DC brushless motor
Rotor matches, and described stator, rotor and circuit board are coaxially disposed, and described Hall sensor leads to described controller
News are connected to calculate described real-time rotating speed.The rotating speed of described high rotating speed DC brushless motor is more than 8000 revs/min, very
To being ultrahigh-speed DC brushless electric machine, its rotating speed is even more than 10000 revs/min.
Power supply 1 is connected by rectification module with controller in the present invention, and controller passes through inversion module and brush DC electricity
Machine is connected, and parallel connection has three Hall sensors, Hall sensor collection between controller and DC brushless motor
The current position signalling of DC brushless motor, and feed back to controller.It is by three different triggering states of Hall sensor
It would know that the i.e. real-time rotating speed of physical location of rotor.
Specifically, three described Hall sensors are uniformly distributed on circuit boards in 120 degree, corresponding with rotor zero degree
Hall sensor deviates the zero degree of described rotor, 0-7 ° of the zero degree left avertence of the relatively described rotor of one of Hall sensor
Such as 5 °.Deviate the setting of zero degree using Hall sensor, effectively avoid rotor dead band, be easy to start, keep system operating uniform,
Avoid unstability.
Wherein, the internal diameter of described perforation and the big 2-8mm of the external diameter of rotor, are set using small―gap suture, utilize support etc. pair
Its firm support positioning, it is effective that small―gap suture ensures that each Hall sensor sensing is stablized.
Further, in addition to described controller communication the overcurrent protection module 9 being connected.Overcurrent protection module can adopt
With commercial chip, during the actual current overrate that overcurrent protection module can be in the controller, overcurrent protection module can be cut off
System power, make system stalls.
Also include the under-voltage protective module 10 being connected with described controller communication.The under-voltage protective module under-voltage protection mould
Block can be in the controller virtual voltage when being less than rated value, under-voltage protective module cutting system voltage, make system stalls.
Described controller is included to receive described Hall sensor signal and generate position difference signal to inversion
The data processing module of device, and to adjust the electric current PWM controller of size of current, it is preferable that described controller is IPM
(Intelligent Power Module), i.e. SPM, integrate device for power switching and drive circuit.
But also overvoltage has been internally integrated, the failure detector circuit such as overcurrent and overheat, and detection signal can be sent to CPU.It by
The tube core of high-speed low-power-consumption and the gate drive circuit and fast protection circuit of optimization are formed.Even if generation load accident situation makes
With improper, it is also ensured that IPM itself is without damage.
Preferably, to improve driving force, the rotor of described high rotating speed DC brushless motor is two-layer columnar structure, and it sets
It is equipped with inside and outside two layers of magnet.Using two-layer columnar, similar inside and outside two layers of mouse cage shape, two layers of magnetic pole is set, strengthens driving force, and
Improve stress distribution, improve rotor bulk strength.
The speed control method of the protection device of the present invention, comprises the following steps,
1) electric motor starting, current motor raising speed is persistently increased,
2) rotor beat and real-time rotating speed are detected in real time, after data-signal exceeds predetermined value, are stopped increase electric current and are simultaneously pressed
Setting amplitude progressively reduces electric current,
3) after data-signal is not more than predetermined value, stop reducing electric current and the stable scheduled time under the electric current, it is e.g., described
Set amplitude as each second reduce 0.01A, the described scheduled time is 3-10s.
4) continue to increase electric current；
5) continuation steps 2) -4) until rising to desired speed.
Meanwhile also include progressively reducing electric current by setting amplitude to slow down or cut off step during shutdown.
The present invention changes the method that original artificial manual protection is changed into automatic protection motor boosting velocity procedure, is adopted by data
Collection, data comparison and according to data in good time decide whether cut off DC brushless motor control system power supply, use
Multi-stage stairs formula rising film condensation, ensure to continue multistage raising speed on the premise of safety and stability, realize even superfast at a high speed make
With requiring, the reliability of motor boosting velocity procedure is significantly increased.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (12)
- A kind of 1. raising speed protection device of high rotating speed DC brushless motor, it is characterised in that including,Data acquisition module, gathers the electric current and voltage signal of high rotating speed DC brushless motor in real time, rotor beat and in real time Rotating speed；Data comparison module, data-signal and setting data are contrasted, obtain the data and setting data gathered in real time Difference；Module is cut off, judges whether to cut off or stop increasing the control system of high rotating speed DC brushless motor according to the difference of acquisition The electric current of system.
- 2. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 1, it is characterised in that data comparison mould Block includes adder and comparator.
- 3. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 1, it is characterised in that data comparison mould Block is special chip MC33039 or DSP digital signal processing chip.
- 4. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 1, it is characterised in that high rotating speed direct current Brushless electric machine includes annular circuit board, sets rectification module, controller and inversion module on circuit boards and is distributed on 3 Hall sensors on described circuit board, described circuit board is fixedly connected with the stator of DC brushless motor and center Perforation and the rotor of described DC brushless motor match, described stator, rotor and circuit board are coaxially disposed, described Hall sensor be connected with described controller communication to calculate described real-time rotating speed.
- 5. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 4, it is characterised in that described three Hall sensor is uniformly distributed on circuit boards in 120 degree, and Hall sensor corresponding with rotor zero degree deviates described rotor Zero degree.
- 6. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 5, it is characterised in that one of them is suddenly 0-7 ° of the zero degree left avertence of the relatively described rotor of your sensor.
- 7. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 5, it is characterised in that described perforation Internal diameter and rotor the big 2-8mm of external diameter.
- 8. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 5, it is characterised in that also include and institute The overcurrent protection module and overvoltage protective module for the controller communication connection stated.
- 9. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 1, it is characterised in that cutting off module is Special chip MC33035.
- 10. the raising speed protection device of high rotating speed DC brushless motor as claimed in claim 1, it is characterised in that described height The rotor of rotating speed DC brushless motor is two-layer columnar structure, and it is provided with inside and outside two layers of magnet.
- A kind of 11. speed control method of protection device using as described in claim any one of 1-10, it is characterised in that including with Lower step,1) electric motor starting, current motor raising speed is persistently increased,2) rotor beat and real-time rotating speed are detected in real time, after data-signal exceeds predetermined value, stop increase electric current simultaneously by setting Amplitude progressively reduces electric current,3) after data-signal is not more than predetermined value, stop reducing electric current and the stable scheduled time under the electric current,4) continue to increase electric current；5) continuation steps 2) -4) until rising to desired speed.
- 12. speed control method as claimed in claim 11, it is characterised in that the described amplitude that sets reduces 0.01A as each second, The described scheduled time is 3-10s, also includes progressively reducing electric current by setting amplitude to slow down or cut off step during shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068121.XA CN107658850A (en) | 2017-11-03 | 2017-11-03 | The raising speed protection device and speed control method of high rotating speed DC brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068121.XA CN107658850A (en) | 2017-11-03 | 2017-11-03 | The raising speed protection device and speed control method of high rotating speed DC brushless motor |
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| CN107658850A true CN107658850A (en) | 2018-02-02 |
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| CN201711068121.XA Pending CN107658850A (en) | 2017-11-03 | 2017-11-03 | The raising speed protection device and speed control method of high rotating speed DC brushless motor |
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Citations (10)
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|---|---|---|---|---|
| JP2000253691A (en) * | 1999-03-02 | 2000-09-14 | Matsushita Electric Ind Co Ltd | Apparatus and method for controlling brushless motor |
| CN1770618A (en) * | 2005-06-09 | 2006-05-10 | 谭启仁 | Electric vehicle brushless DC motor single-chip PWM control device with sensor |
| CN101051806A (en) * | 2007-05-17 | 2007-10-10 | 同济大学 | Novel electric driving control system and method for vehicle air conditioner compressor |
| CN201414063Y (en) * | 2009-05-25 | 2010-02-24 | 重庆大学 | Brushless direct current permanent magnet motor electromechanical integration structure for electric automobiles |
| CN201667630U (en) * | 2010-02-11 | 2010-12-08 | 利德国际企业有限公司 | Brushless direct-current motor and control device thereof as well as motor vehicle using the same |
| CN102946220A (en) * | 2012-11-21 | 2013-02-27 | 北京信息科技大学 | Speed control system and method of direct current (DC) motor |
| CN104753411A (en) * | 2013-12-26 | 2015-07-01 | 南京德朔实业有限公司 | Brushless motor and control method thereof |
| CN106411192A (en) * | 2016-08-31 | 2017-02-15 | 刘世超 | Method for realizing motor accurate control by using linear Hall sensors |
| CN107086827A (en) * | 2017-06-24 | 2017-08-22 | 湖北汽车工业学院 | A kind of electric car non-brush permanent-magnet DC motor controller and control method |
| CN207530525U (en) * | 2017-11-03 | 2018-06-22 | 核工业理化工程研究院 | The raising speed protective device of high rotating speed DC brushless motor |
-
2017
- 2017-11-03 CN CN201711068121.XA patent/CN107658850A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000253691A (en) * | 1999-03-02 | 2000-09-14 | Matsushita Electric Ind Co Ltd | Apparatus and method for controlling brushless motor |
| CN1770618A (en) * | 2005-06-09 | 2006-05-10 | 谭启仁 | Electric vehicle brushless DC motor single-chip PWM control device with sensor |
| CN101051806A (en) * | 2007-05-17 | 2007-10-10 | 同济大学 | Novel electric driving control system and method for vehicle air conditioner compressor |
| CN201414063Y (en) * | 2009-05-25 | 2010-02-24 | 重庆大学 | Brushless direct current permanent magnet motor electromechanical integration structure for electric automobiles |
| CN201667630U (en) * | 2010-02-11 | 2010-12-08 | 利德国际企业有限公司 | Brushless direct-current motor and control device thereof as well as motor vehicle using the same |
| CN102946220A (en) * | 2012-11-21 | 2013-02-27 | 北京信息科技大学 | Speed control system and method of direct current (DC) motor |
| CN104753411A (en) * | 2013-12-26 | 2015-07-01 | 南京德朔实业有限公司 | Brushless motor and control method thereof |
| CN106411192A (en) * | 2016-08-31 | 2017-02-15 | 刘世超 | Method for realizing motor accurate control by using linear Hall sensors |
| CN107086827A (en) * | 2017-06-24 | 2017-08-22 | 湖北汽车工业学院 | A kind of electric car non-brush permanent-magnet DC motor controller and control method |
| CN207530525U (en) * | 2017-11-03 | 2018-06-22 | 核工业理化工程研究院 | The raising speed protective device of high rotating speed DC brushless motor |
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