CN105515456B - A kind of DC brushless motor is according to the method and control system of load adjust automatically efficiency - Google Patents
A kind of DC brushless motor is according to the method and control system of load adjust automatically efficiency Download PDFInfo
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- CN105515456B CN105515456B CN201510905769.2A CN201510905769A CN105515456B CN 105515456 B CN105515456 B CN 105515456B CN 201510905769 A CN201510905769 A CN 201510905769A CN 105515456 B CN105515456 B CN 105515456B
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/06—Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention discloses a kind of DC brushless motors according to the method and control system of load adjust automatically efficiency, including motor and electric machine built-in control panel, electric machine built-in control panel includes VSP read modules, Rotating speed measring module, current detection module and adjusts module into angle；VSP read modules are for reading rotary speed instruction；Rotating speed measring module is used for Rotating speed measring；Current detection module to running current for being detected processing；Into angle adjustment module it is used to that into angle set and setting value to be substituted into electric system.After the above method and structure, VSP read modules read rotating speed of target, Rotating speed measring module confirms that motor actual speed makes motor actual speed match with rotating speed of target by adjusting into angle, and the operating current of sample motor, motor optimum efficiency point is taken, to realize that motor to the adaptive of different system, reduces the species number of motor development time and client to motor demand, the time efficiency of exploitation is greatly improved, cost is saved.
Description
Technical field
The present invention relates to a kind of motor control method and control system, especially a kind of DC brushless motor according to load from
The method and control system of dynamic regulated efficiency.
Background technology
The motor that motor production firm produces is used for various fields, and there are different loads and rotating speed in different fields.For
Make motor that there is certain versatility, adapt to different loads, the rated power of motor is usually all very big.
Traditional DC brushless motor, it usually needs host computer is controlled；Or secure the control mode of motor
With control angle, to can variant performance under different loads and working condition.However, to electric motor and controller
When carrying out differentiation design, it will usually cause the versatility of motor very poor.
Therefore, poor to reduce the motor product quantity of different clients group needs and being controlled in different loads motor
Anisotropic design, urgently needs a kind of motor having advanced control from view of profit mode.
Invention content
In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a kind of DC brushless motors
According to the method for load adjust automatically efficiency, the DC brushless motor is according to the method energy adjust automatically for loading adjust automatically efficiency
Electric efficiency point and automatic weak-magnetic adjust rotating speed, to realize that motor for the adaptive of different system, reduces opening for motor
The species number of time and client to motor demand is sent out, the time efficiency of exploitation is greatly improved, saves cost.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of DC brushless motor is adjusted according to the method for load adjust automatically efficiency, DC brushless motor according to load is automatic
The method of adjustment of whole efficiency, it is characterised in that：Include the following steps：
The first step, rotating speed of target input：Required rotating speed of target, VSP read modules are inputted in motor input panel
Rotating speed of target is read out；
Second step matches motor actual speed with rotating speed of target：Rotating speed measring module to the actual speed of motor into
Row detection, by the control to der Geschwindigkeitkreis, makes the actual speed of motor reach the rotating speed of target in the first step, current detection module
Sampling reaches current value when rotating speed of target, and is denoted as lf；
Third walks, and increases into angle according to consistent difference：Increase into angle according to consistent difference, motor speed is waited for stablize, and
When motor speed is consistent with rotating speed of target, the current value after sampling increase is denoted as lf+1；
4th step：Electric current compares the searching with rotating speed of target efficiency optimization point：
（1）As lf+1 ＜ lf, continue the consistent difference in being walked according to third to being increased continuously into angle, often incrementally one
It is secondary, it is stable to motor speed and sampled with current value of rotating speed of target when consistent；Current value before being incremented by is denoted as lf+
N-1, the electric current after being incremented by is denoted as lf+N, if lf+N ＜ lf+N-1, minimum current under rotating speed of target is lf, corresponding to lf
Be denoted as rotating speed of target efficiency optimization point into angle, by corresponding to lf into angle write storage device；
（2）As lf+1 >=lf, the consistent difference in reversely being walked according to third waits for that motor speed is steady to being reduced into angle
When fixed and consistent with rotating speed of target, the current value lf-1 after sample rate current reduction；If lf-1 ＜ lf, during continuation is walked according to third
Consistent difference is often successively decreased primary to continuously being successively decreased into angle, electricity stable to motor speed and with rotating speed of target when consistent
Flow valuve is sampled；Current value before successively decreasing is denoted as lf-N+1, the electric current after successively decreasing is denoted as lf-N, if lf-N ＜ lf-N+1,
Then the minimum current under rotating speed of target is lf-1, rotating speed of target efficiency optimization point is denoted as into angle corresponding to lf-1, by lf-1 institutes
It is corresponding into angle write storage device.
In the second step, the actual speed of motor is controlled by der Geschwindigkeitkreis, when the actual speed of motor is not achieved first
When rotating speed of target in step, automatic angle compensation is used to reach the rotating speed of target in the first step in a manner of weak magnetic.
The present invention also provides a kind of DC brushless motors according to the control system of load adjust automatically efficiency, the brush DC
Motor energy adjust automatically electric efficiency point and automatic weak-magnetic adjust rotating speed, to realize motor for the adaptive of different system
Answer, reduce motor development time and client to the species number of motor demand, greatly improve the time efficiency of exploitation, save at
This.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of DC brushless motor is according to the control system of load adjust automatically efficiency, including motor and electric machine built-in control
Plate, electric machine built-in control panel include VSP read modules, Rotating speed measring module, current detection module and adjust module into angle；Its
In：
VSP read modules, for reading rotary speed instruction；
Rotating speed measring module is handled for the Rotating speed measring to electric system；
Current detection module is detected processing for the running current to motor；
Module is adjusted into angle, for into angle set and setting value being substituted into electric system.
The electric machine built-in control panel further includes temperature detecting module.
The electric machine built-in control panel further includes that module occurs for SVPWM.
The electric machine built-in control panel further includes voltage detection module.
The present invention is read using the above method with the commutation control of sine wave, VSP after structure, is carried out to motor using microcontroller
Modulus block reads the setting rotating speed of target of input, and Rotating speed measring module confirms motor actual speed, by adjusting module into angle
To being adjusted into angle, the rotating speed of target of motor actual speed and setting is set to match, while the operating current of sample motor, most
Optimal current control scheme namely motor optimum efficiency point are taken afterwards, to realize motor for the adaptive of different system
Answer, reduce motor development time and client to the species number of motor demand, greatly improve the time efficiency of exploitation, save at
This.
Description of the drawings
Fig. 1 shows that a kind of DC brushless motor of the present invention shows according to the structure of the control system of load adjust automatically efficiency
It is intended to；
Fig. 2 shows the correspondence figure into angle and electric current；
Fig. 3 shows the relational graph into angle and rotating speed；
Fig. 4 shows that the DC brushless motor of the application is carried out with DC brushless motor in the prior art under identical load
Electric current and the parallel tables after measurement of rotating speed；
Fig. 5 shows adjustment flow diagram when DC brushless motor is according to load adjust automatically efficiency in the application.
Wherein have：1. motor；2. main power circuit；3. accessory power supply circuit；4. drive integrated circult；5. electric machine built-in control
Making sheet.
Specific implementation mode
The present invention is described in further detail with specific better embodiment below in conjunction with the accompanying drawings.
As shown in figure 5, a kind of DC brushless motor includes the following steps according to the method for load adjust automatically efficiency：
The first step, rotating speed of target input：Required rotating speed of target, VSP read modules are inputted in motor input panel
Rotating speed of target is read out.
Second step matches motor actual speed with rotating speed of target：Rotating speed measring module to the actual speed of motor into
Row detection, by the control to der Geschwindigkeitkreis, makes the actual speed of motor reach the rotating speed of target in the first step, current detection module
Sampling reaches current value when rotating speed of target, and is denoted as lf.
In this step, the actual speed of motor is controlled by der Geschwindigkeitkreis, when the actual speed of motor is not achieved in the first step
Rotating speed of target when, as shown in figure 3, automatic angle compensation is used to reach the rotating speed of target in the first step in a manner of weak magnetic.
Concrete methods of realizing is：
1. being controlled according to rotating speed of target, carry out finding optimum efficiency point if reaching rotating speed of target.
2. if do not reach rotating speed of target, can increase according to certain fixed value into angle number.
3. repeating above step, if increased have reached system limitation into angle value, it will not further increase, send out simultaneously
Go out signal prompt present load or rotating speed has reached the maximum, later operation will be run according to current into angle.
Third walks, and increases into angle according to consistent difference：Increase into angle according to consistent difference, motor speed is waited for stablize, and
When motor speed is consistent with rotating speed of target, the current value after sampling increase is denoted as lf+1.
4th step：Electric current compares the searching with rotating speed of target efficiency optimization point：
（1）As lf+1 ＜ lf, continue the consistent difference in being walked according to third to being increased continuously into angle, often incrementally one
It is secondary, it is stable to motor speed and sampled with current value of rotating speed of target when consistent；Current value before being incremented by is denoted as lf+
N-1, the electric current after being incremented by is denoted as lf+N, if lf+N ＜ lf+N-1, the minimum current under rotating speed of target is If+1, at this point, If+
Be denoted as rotating speed of target efficiency optimization point into angle corresponding to 1, by corresponding to If+1 into angle write storage device.
（2）As If+1 >=If, the consistent difference in reversely being walked according to third waits for that motor speed is steady to being reduced into angle
When fixed and consistent with rotating speed of target, the current value If-1 after sample rate current reduction；If If-1 ＜ If, during continuation is walked according to third
Consistent difference is often successively decreased primary to continuously being successively decreased into angle, electricity stable to motor speed and with rotating speed of target when consistent
Flow valuve is sampled；Current value before successively decreasing is denoted as If-N+1, the electric current after successively decreasing is denoted as If-N, if If-N ＜ If-N+1,
Then the minimum current under rotating speed of target is If-1, rotating speed of target efficiency optimization point is denoted as into angle corresponding to If-1, by If-1 institutes
It is corresponding into angle write storage device.（Wherein, desirable 0.5 degree into the consistent difference at angle, if that the maximum angle set as
45 degree.The maximum value i.e. boundary value of N is 90 degree.）
As shown in Figure 1, a kind of control system of DC brushless motor according to load adjust automatically efficiency, including motor 1, master
Electric power loop 2, accessory power supply circuit 3, drive integrated circult 4 and electric machine built-in control panel 5.
Motor 1 includes stator and rotor, and stator rotates required stator field for generating motor；Rotor is for generating
Motor rotates required rotor field.
Electric machine built-in control panel include VSP read modules, Rotating speed measring module, current detection module, into angle adjustment module,
Module and voltage detection module occur for temperature detecting module, SVPWM.
Wherein：
VSP read modules such as read the setting rotating speed of target of input for reading rotary speed instruction.
Rotating speed measring module is handled for the Rotating speed measring to electric system, is such as carried out to the actual speed of motor real-time
Detection.
Current detection module is detected processing for the running current to motor, and can sample motor as needed
Operating current.
Module is adjusted into angle, for into angle set and setting value being substituted into electric system.Module is adjusted into angle
The rotating speed of target of motor actual speed and setting can be made to match to being adjusted into angle.
Temperature detecting module, the temperature of detecting system make it be operated in a safe and reliable model for protecting system
It encloses.
SVPWM occurs module and calculates corresponding PWM duty cycle according to current angle and output voltage.
Whether the DC voltages at different levels of voltage detection module, detecting system are normal.
The DC brushless motor of the application can realize that motor to the adaptive of different system, reduces the development time of motor
With client to the species number of motor demand, the time efficiency of exploitation is greatly improved, cost is saved.
As shown in figure 4, the figure illustrates the DC brushless motors of the application under identical load and direct current in the prior art
Brushless motor carries out electric current and the parallel tables after measurement of rotating speed, it can be seen from the figure that after method using the present invention, just like
Lower some benefits：
1. energy saving, in the case of same motor, electric efficiency is high.
2. when section, in the case of same motor, the development time is short.
3. originally, in the case of same motor, raw material and complete machine inventory are few for drop.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of equivalents to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little equivalents all belong to the scope of protection of the present invention.
Claims (6)
1. a kind of DC brushless motor is according to the method for load adjust automatically efficiency, it is characterised in that：Include the following steps：
The first step, rotating speed of target input：Required rotating speed of target is inputted in motor input panel, VSP read modules are to mesh
Mark rotating speed is read out；
Second step matches motor actual speed with rotating speed of target：Rotating speed measring module examines the actual speed of motor
It surveys, by the control to der Geschwindigkeitkreis, the actual speed of motor is made to reach the rotating speed of target in the first step, current detection module sampling
Reach current value when rotating speed of target, and is denoted as lf；
Third walks, and increases into angle according to consistent difference：Increase into angle according to consistent difference, waits for motor speed to stablize, and motor
When rotating speed is consistent with rotating speed of target, the current value after sampling increase is denoted as lf+1；
4th step：Electric current compares the searching with rotating speed of target efficiency optimization point：
As lf+1 ＜ lf, continues the consistent difference in being walked according to third to being increased continuously into angle, be often incremented by once, it is right
Motor speed is stable and is sampled with current value of rotating speed of target when consistent；Current value before being incremented by is denoted as lf+N-1, is passed
Electric current after increasing is denoted as lf+N, if lf+N ＜ lf+N-1, the minimum current under rotating speed of target is lf, remembering into angle corresponding to lf
For rotating speed of target efficiency optimization point, by corresponding to lf into angle write storage device；
As lf+1 >=lf, consistent difference in reversely being walked according to third to being reduced into angle, wait for motor speed it is stable and with
When rotating speed of target is consistent, the current value lf-1 after sample rate current reduction；If lf-1 ＜ lf, continue the fixed difference in being walked according to third
Value is often successively decreased primary to continuously being successively decreased into angle, it is stable to motor speed and with current value of rotating speed of target when consistent into
Row sampling；Current value before successively decreasing is denoted as lf-N+1, the electric current after successively decreasing is denoted as lf-N, if lf-N ＜ lf-N+1, target
Minimum current under rotating speed is lf-1, rotating speed of target efficiency optimization point is denoted as into angle corresponding to lf-1, corresponding to lf-1
Into angle write storage device.
2. DC brushless motor according to claim 1 is according to the method for load adjust automatically efficiency, it is characterised in that：Institute
It states in second step, the actual speed of motor is controlled by der Geschwindigkeitkreis, when the target in the first step is not achieved in the actual speed of motor
When rotating speed, automatic angle compensation is used to reach the rotating speed of target in the first step in a manner of weak magnetic.
3. a kind of automatic according to the method for load adjust automatically efficiency using any one of the claim 1-2 DC brushless motors
The control system of regulated efficiency, it is characterised in that：Including motor and electric machine built-in control panel, electric machine built-in control panel includes VSP
Read module, Rotating speed measring module, current detection module and into angle adjust module；Wherein：
VSP read modules, for reading rotary speed instruction；
Rotating speed measring module is handled for the Rotating speed measring to electric system；
Current detection module is detected processing for the running current to motor；
Module is adjusted into angle, for into angle set and setting value being substituted into electric system.
4. according to claim 3 imitated using DC brushless motor according to the method adjust automatically of load adjust automatically efficiency
The control system of rate, it is characterised in that：The electric machine built-in control panel further includes temperature detecting module.
5. according to claim 3 imitated using DC brushless motor according to the method adjust automatically of load adjust automatically efficiency
The control system of rate, it is characterised in that：The electric machine built-in control panel further includes that module occurs for SVPWM.
6. according to claim 3 imitated using DC brushless motor according to the method adjust automatically of load adjust automatically efficiency
The control system of rate, it is characterised in that：The electric machine built-in control panel further includes voltage detection module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510905769.2A CN105515456B (en) | 2015-12-09 | 2015-12-09 | A kind of DC brushless motor is according to the method and control system of load adjust automatically efficiency |
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| CN201510905769.2A CN105515456B (en) | 2015-12-09 | 2015-12-09 | A kind of DC brushless motor is according to the method and control system of load adjust automatically efficiency |
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| CN105515456A CN105515456A (en) | 2016-04-20 |
| CN105515456B true CN105515456B (en) | 2018-08-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422259A (en) * | 2017-05-24 | 2017-12-01 | 歌尔股份有限公司 | The test system and its method of testing of a kind of brushless electric machine |
| CN107830002B (en) * | 2017-10-27 | 2023-07-04 | 江苏徐工工程机械研究院有限公司 | Electrohydraulic control system and method and aerial work platform |
| CN110236419B (en) * | 2018-03-07 | 2021-06-18 | 广东美的生活电器制造有限公司 | Food processor and control system and power-off display control method thereof |
| KR102319867B1 (en) * | 2018-03-07 | 2021-10-29 | 광동 메이디 컨슈머 일렉트릭스 매뉴팩쳐링 컴퍼니 리미티드 | Control method, apparatus for increasing the rotation speed of food processing machine and food processing machine |
| CN110236418A (en) * | 2018-03-07 | 2019-09-17 | 广东美的生活电器制造有限公司 | Food processor and its constant-power control method and control device |
| CN112653356A (en) * | 2020-12-17 | 2021-04-13 | 珠海格力电器股份有限公司 | Control method and system for self-starting synchronous motor, storage medium and processor |
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|---|---|---|---|---|
| CN103339850A (en) * | 2010-12-08 | 2013-10-02 | 美蓓亚株式会社 | Motor control circuit |
| CN205231983U (en) * | 2015-12-09 | 2016-05-11 | 江苏上骐集团有限公司 | Can be according to DC Brushless motor of load automatic adjustment efficiency |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006158036A (en) * | 2004-11-26 | 2006-06-15 | Matsushita Electric Ind Co Ltd | Electric motor driver |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339850A (en) * | 2010-12-08 | 2013-10-02 | 美蓓亚株式会社 | Motor control circuit |
| CN205231983U (en) * | 2015-12-09 | 2016-05-11 | 江苏上骐集团有限公司 | Can be according to DC Brushless motor of load automatic adjustment efficiency |
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