CN107888113A - A kind of switched reluctance machines Speed Sensorless Control Method - Google Patents
A kind of switched reluctance machines Speed Sensorless Control Method Download PDFInfo
- Publication number
- CN107888113A CN107888113A CN201711179967.0A CN201711179967A CN107888113A CN 107888113 A CN107888113 A CN 107888113A CN 201711179967 A CN201711179967 A CN 201711179967A CN 107888113 A CN107888113 A CN 107888113A
- Authority
- CN
- China
- Prior art keywords
- switched reluctance
- resistance
- reluctance machines
- operational amplifier
- control unit
- Prior art date
- 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
- 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
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
-
- 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
-
- 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
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/09—Motor speed determination based on the current and/or voltage without using a tachogenerator or a physical encoder
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a kind of switched reluctance machines Speed Sensorless Control Method, including control unit, position detection unit, PWM generating units and driver element, control unit difference link position detection unit, PWM generating units, PWM generating units connect driver element, also include voltage sensor and current sensor, voltage sensor and current sensor connect control unit respectively, the present invention can realize the accurate control to switched reluctance machines rotating speed, and strong antijamming capability, improve the stability that switched reluctance machines are run.
Description
Technical field
The present invention relates to motor speed control technology field, specially a kind of switched reluctance machines senseless control
Method.
Background technology
Switched reluctance machines are a kind of new bunchers, and governing system has direct current concurrently, exchanges the excellent of two class governing systems
Point, it is the latest generation stepless time adjustment system after frequency conversion speed-adjusting system, Speed Regulating System of Brushless DC Motor.Its structure is simple
Firm, speed-regulating range width, speed adjusting performance is excellent, and all has greater efficiency in whole speed adjustable range, and system reliability is high.It is main
It is made up of switched reluctance machines, power inverter, controller and the part of position detector four.Power conversion is included in controller
Device and control circuit, and rotor position detector is then arranged on one end of motor.
Nowadays, switched reluctance machines application and development make significant progress, be applied successfully to electric car
The every field such as driving, universal industrial, household electrical appliance and textile machine, from 10W to 5MW, maximal rate is up to power bracket
100,000 r/min。
Switched reluctance machines are a kind of New-type electric machines, than being more suitable for vehicle traction, can easily particularly carry out energy
Amount recovery.But the technology is not widely applied, wheel of vehicle hub motor is not exclusively used in also mainly due in the market
Controller and control method, it is impossible to effectively realize the control to switched reluctance machines.
The content of the invention
It is an object of the invention to provide a kind of switched reluctance machines Speed Sensorless Control Method, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides following technical scheme：A kind of switched reluctance machines Speedless sensor control
Method processed, including control unit, position detection unit, PWM generating units and driver element, described control unit connect respectively
Position detection unit, PWM generating units, the PWM generating units connect driver element, in addition to voltage sensor and electric current pass
Sensor, the voltage sensor and current sensor connect control unit respectively；
The PWM generating units include PWM inputs, sinewave output end, resistance A, resistance B and resistance C, the resistance A mono-
End connection PWM inputs, the other end connect resistance B one end and electric capacity A one end respectively, and the resistance B other ends connect electricity respectively
Hold B one end, resistance C one end and sinewave output end, it is another that the electric capacity A other ends connect the electric capacity B other ends, resistance C respectively
Hold and be grounded.
Preferably, the position detection unit includes the first potentiometer, the second potentiometer, the first operational amplifier, second
Operational amplifier and and gate circuit；First potentiometer one terminates power end, and the other end connects the first operational amplifier positive pole
Input；The termination of second potentiometer one power end, the other end the second operational amplifier negative input of connection, described first
Operational amplifier negative input connects the second operational amplifier electrode input end, first operational amplifier and the second computing
Amplifier out connects and gate circuit, described and gate circuit connection count cpu chip.
Preferably, the voltage sensor and current sensor use Hall sensor.
Preferably, it is characterised in that：Comprise the following steps：
A, current sensor and voltage sensor gather winding voltage of switched reluctance motor and current signal and sent to control respectively
Unit processed；
B, while position detection unit precise acquisition switched reluctance machines winding current, and send to control unit；
C, control unit analyzes and processes to the voltage and current signal of collection, and accurately judges that switched reluctance machines turn
Sub- position；
D, control unit sends control instruction to PWM generating units afterwards, after PWM generating units are filtered processing to signal,
The adjustable sine wave of stablizing of output amplitude is to driver element；
E, the rotating speed of driver element adjusting switch reluctance motor immediately.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）The present invention can realize the accurate control to switched reluctance machines rotating speed, and strong antijamming capability, improve switch magnetic
Hinder the stability of motor operation.
（2）The PWM generating unit strong antijamming capabilities that the present invention uses, being capable of output smoothing and the adjustable stabilization of amplitude
Sine wave, waveform is more smooth, further increase motor speed control accuracy.
（3）The position detection unit that the present invention uses, three-phase windings electric current can be accurately detected, so as to accurately judge motor
Rotor-position.
Brief description of the drawings
Fig. 1 is control principle block diagram of the present invention；
Fig. 2 is PWM generating units schematic diagram of the present invention；
Fig. 3 is position detection unit schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of switched reluctance machines senseless control side
Method, including control unit 1, position detection unit 2, PWM generating units 3 and driver element 4, described control unit 1 connect respectively
Position detection unit 2, PWM generating units 3, the PWM generating units 3 connect driver element 4, in addition to the He of voltage sensor 5
Current sensor 6, the voltage sensor 5 and current sensor 6 connect control unit 1 respectively, and voltage sensor 5 and electric current pass
Sensor 6 uses Hall sensor；
The PWM generating units 3 include PWM inputs 7, sinewave output end 8, resistance A1a, resistance B2a and resistance C3a, institute
Resistance A1a one end connection PWM inputs 7 are stated, the other end connects resistance B2a one end and electric capacity A1b one end, the resistance respectively
The B2a other ends connect electric capacity B2b one end, resistance C3a one end and sinewave output end 8, the electric capacity A1b other ends difference respectively
The connection electric capacity B2b other ends, the resistance C3a other ends are simultaneously grounded.The PWM generating unit strong antijamming capabilities that the present invention uses, energy
The sine wave of enough output smoothings and the adjustable stabilization of amplitude, waveform is more smooth, further increases motor speed control essence
True property.
In the present invention, position detection unit 2 include the first potentiometer 9, the second potentiometer 10, the first operational amplifier 11,
Second operational amplifier 12 and with gate circuit 13；First potentiometer 9 one terminates power end, and the other end connects the first computing and put
The big electrode input end of device 11；Second potentiometer 10 1 terminates power end, the other end connection negative pole of the second operational amplifier 12
Input, the negative input of the first operational amplifier 11 connection electrode input end of the second operational amplifier 12, described first
The output end of 11 and second operational amplifier of operational amplifier 12 connects and gate circuit 13, the described and connection count CPU of gate circuit 13
Chip 14.The position detection unit that the present invention uses, three-phase windings electric current can be accurately detected, so as to accurately judge rotor
Position.
Control method of the present invention comprises the following steps：
A, current sensor and voltage sensor gather winding voltage of switched reluctance motor and current signal and sent to control respectively
Unit processed；
B, while position detection unit precise acquisition switched reluctance machines winding current, and send to control unit；
C, control unit analyzes and processes to the voltage and current signal of collection, and accurately judges that switched reluctance machines turn
Sub- position；
D, control unit sends control instruction to PWM generating units afterwards, after PWM generating units are filtered processing to signal,
The adjustable sine wave of stablizing of output amplitude is to driver element；
E, the rotating speed of driver element adjusting switch reluctance motor immediately.
In summary, the present invention can realize the accurate control to switched reluctance machines rotating speed, and strong antijamming capability, carry
The high stability of switched reluctance machines operations.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of switched reluctance machines Speed Sensorless Control Method, including control unit（1）, position detection unit（2）、
PWM generating units（3）And driver element（4）, it is characterised in that：Described control unit（1）Link position detection unit respectively
（2）, PWM generating units（3）, the PWM generating units（3）Connect driver element（4）, in addition to voltage sensor（5）And electricity
Flow sensor（6）, the voltage sensor（5）And current sensor（6）Control unit is connected respectively（1）；The PWM occurs single
Member（3）Including PWM inputs（7）, sinewave output end（8）, resistance A（1a）, resistance B (2a) and resistance C (3a), the resistance
A (1a) one end connects PWM inputs（7）, the other end connects resistance B (2a) one end and electric capacity A (1b) one end, the resistance respectively
B (2a) other end connects electric capacity B (2b) one end, resistance C (3a) one end and sinewave output end (8), the electric capacity A (1b) respectively
The other end connects electric capacity B (2b) other end, resistance C (3a) other ends and is grounded respectively.
A kind of 2. switched reluctance machines Speed Sensorless Control Method according to claim 1, it is characterised in that：It is described
Position detection unit（2）Including the first potentiometer（9）, the second potentiometer（10）, the first operational amplifier（11）, the second computing puts
Big device（12）With with gate circuit（13）；First potentiometer（9）One termination power end, the other end connect the first operational amplifier
（11）Electrode input end；Second potentiometer（10）One termination power end, the other end connect the second operational amplifier（12）It is negative
Pole input, first operational amplifier（11）Negative input connects the second operational amplifier（12）Electrode input end, institute
State the first operational amplifier（11）With the second operational amplifier（12）Output end connects and gate circuit（13）, described and gate circuit
（13）Connection count cpu chip（14）.
A kind of 3. switched reluctance machines Speed Sensorless Control Method according to claim 1, it is characterised in that：It is described
Voltage sensor（5）And current sensor（6）Use Hall sensor.
A kind of 4. switched reluctance machines Speed Sensorless Control Method according to claim 1, it is characterised in that：Including
Following steps：
A, current sensor and voltage sensor gather winding voltage of switched reluctance motor and current signal and sent to control respectively
Unit processed；
B, while position detection unit precise acquisition switched reluctance machines winding current, and send to control unit；
C, control unit analyzes and processes to the voltage and current signal of collection, and accurately judges that switched reluctance machines turn
Sub- position；
D, control unit sends control instruction to PWM generating units afterwards, after PWM generating units are filtered processing to signal,
The adjustable sine wave of stablizing of output amplitude is to driver element；
E, the rotating speed of driver element adjusting switch reluctance motor immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711179967.0A CN107888113A (en) | 2017-11-23 | 2017-11-23 | A kind of switched reluctance machines Speed Sensorless Control Method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711179967.0A CN107888113A (en) | 2017-11-23 | 2017-11-23 | A kind of switched reluctance machines Speed Sensorless Control Method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107888113A true CN107888113A (en) | 2018-04-06 |
Family
ID=61774670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711179967.0A Pending CN107888113A (en) | 2017-11-23 | 2017-11-23 | A kind of switched reluctance machines Speed Sensorless Control Method |
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| Country | Link |
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| CN (1) | CN107888113A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359272A (en) * | 1993-02-05 | 1994-10-25 | Emerson Electric Co. | Sensorless drive control and method for doubly-fed reluctance motor |
| CN201107042Y (en) * | 2007-12-10 | 2008-08-27 | 上海电气集团股份有限公司 | Position detection circuit for permanent magnetism synchronous machine without sensor driver |
| CN102263537A (en) * | 2011-07-22 | 2011-11-30 | 惠州Tcl移动通信有限公司 | Control circuit of linear motor of mobile terminal |
| CN104579040A (en) * | 2015-01-20 | 2015-04-29 | 中国矿业大学 | Position-sensorless control method suitable for running of switched reluctance motor in whole-speed range |
| US20160248362A1 (en) * | 2015-02-19 | 2016-08-25 | Caterpillar Inc. | Hybrid Soft Switching for Current Regulation in Switched Reluctance Machines |
-
2017
- 2017-11-23 CN CN201711179967.0A patent/CN107888113A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359272A (en) * | 1993-02-05 | 1994-10-25 | Emerson Electric Co. | Sensorless drive control and method for doubly-fed reluctance motor |
| CN201107042Y (en) * | 2007-12-10 | 2008-08-27 | 上海电气集团股份有限公司 | Position detection circuit for permanent magnetism synchronous machine without sensor driver |
| CN102263537A (en) * | 2011-07-22 | 2011-11-30 | 惠州Tcl移动通信有限公司 | Control circuit of linear motor of mobile terminal |
| CN104579040A (en) * | 2015-01-20 | 2015-04-29 | 中国矿业大学 | Position-sensorless control method suitable for running of switched reluctance motor in whole-speed range |
| US20160248362A1 (en) * | 2015-02-19 | 2016-08-25 | Caterpillar Inc. | Hybrid Soft Switching for Current Regulation in Switched Reluctance Machines |
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Application publication date: 20180406 |