CN108462415A - A kind of switched reluctance machines position information detection method based on single location sensor - Google Patents
A kind of switched reluctance machines position information detection method based on single location sensor Download PDFInfo
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- CN108462415A CN108462415A CN201810132035.9A CN201810132035A CN108462415A CN 108462415 A CN108462415 A CN 108462415A CN 201810132035 A CN201810132035 A CN 201810132035A CN 108462415 A CN108462415 A CN 108462415A
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- switched reluctance
- reluctance machines
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 30
- 230000005284 excitation Effects 0.000 claims abstract description 15
- 210000003781 tooth socket Anatomy 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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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
- H02P6/14—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 Electric Motors In General (AREA)
Abstract
A kind of switched reluctance machines position information detection method based on single location sensor disclosed by the invention, by optimizing traditional position detector disk plate with slots structure, it proposes a kind of rotor position information detection method only with a position sensor, constructs switched reluctance machines low cost control system.By comparing each phase winding peak point current amplitude of switched reluctance machines, the initial position section of switched reluctance machines is determined, according to the corresponding phase winding of location release of section.According to the corresponding serial number in the next position signal edge of the excitation sequence notation of motor, switched reluctance machines rotating speed is calculated according to the position signal continuous adjacent edge corresponding time, combines preset angle and the shutdown angle opened to switched reluctance machines progress commutation control according to position signal edge serial number.Asymmetric installation problem in multiple position sensor detection schemes can be avoided by carrying the position information detection method based on single location sensor, and can realize inexpensive target, economical and practical, have good engineering application value.
Description
Technical field
The present invention relates to a kind of switched reluctance machines position information detection methods based on single location sensor, are suitable for
The position signal of inexpensive switched Reluctance Motor Control System detects.
Background technology
The location information of position sensor output has important work to the commutation control and stable operation of switched reluctance machines
With economical and practical location information detection scheme is advantageously implemented the inexpensive target of switched reluctance machines.Magnetic is switched for m phases
Motor is hindered, traditional location information detection scheme needs m only (m is odd even) or m/2 (m is even number) position sensors, more
Position sensor has multiple fault points, this can bring the reliability service of switched reluctance machines threat, and can limit and hold
Close the low-cost popularization application of reluctance motor.For the reliability service for realizing switched reluctance machines and inexpensive control targe, need
Reduce the usage quantity of position sensor.
Invention content
Technical problem：The purpose of the present invention is being directed in prior art there are problem, provide a kind of based on single location biography
The switched reluctance machines position information detection method of sensor.
Technical solution：A kind of switched reluctance machines position information detection method based on single location sensor of the present invention：
By optimizing traditional position detector disk plate with slots structure, a kind of turn only with a position sensor is proposed
Sub- position information detection method constructs switched reluctance machines low cost control system.By comparing each of switched reluctance machines
Phase winding peak point current amplitude determines the initial position section of switched reluctance machines, is corresponded to according to location release of section
Phase winding.It is continuous according to position signal according to the corresponding serial number in the next position signal edge of the excitation sequence notation of motor
Adjacent edge calculates switched reluctance machines rotating speed along the corresponding time, and angle is opened in conjunction with preset according to position signal edge serial number
Commutation control is carried out to switched reluctance machines with shutdown angle, it is characterised in that：
(1) for m phases Ns/NrThe switched reluctance machines of structure, be divided between the angle between two edge of position signal 360 °/
Nr/2-360 °/Nr/m, (wherein, m is the switched reluctance machines number of phases, NsFor stator poles, NrFor rotor number of poles), disk plate with slots
Tooth socket sum is 2mNr/(m-2)；
(2) for the switched reluctance machines of 6/4 structure of three-phase, 15 ° is divided between the angle between two edge of position signal, is opened
The tooth socket sum of slot disk is 24；For the switched reluctance machines of 12/8 structure of three-phase, the angle between two edge of position signal
Between be divided into 7.5 °, the tooth socket sum of disk plate with slots is 48；For the switched reluctance machines of four phases, 8/6 structure, position signal both sides
15 ° are divided between angle between, the tooth socket sum of disk plate with slots is 24；For the switched reluctance machines of four phases, 16/12 structure,
7.5 ° are divided between angle between two edge of position signal, the tooth socket sum of disk plate with slots is 48；
(3) use tooth socket sum suitable to three-phase switch reluctance machine and four phase switch reluctance motors for 48 disk plate with slots
With with uniformity；For the switched reluctance machines of 16/12 structure of 12/8 structure of three-phase and four phases, used position sensor
Each edge of output signal is labeled；For the switched reluctance machines of 8/6 structure of 6/4 structure of three-phase and four phases, used
The two divided-frequency edge of position sensor output signal is labeled.
(4) for three-phase switch reluctance machine, divide according to single position sensor detection scheme, each rotor cycle is used
For 6 sub-regions；For four phase switch reluctance motors, according to using single position sensor detection scheme, each rotor cycle
It is divided into 4 sub-regions.
(5) according to the current amplitude of each phase winding, motor initial Location Area is judged, according to motor initial position excitation pair
Phase winding is answered, according to the corresponding serial number in regular marks position sensor position signal edge in (3), according to position signal edge pair
The correspondence control motor commutation of the needs answered and motor phase inductance.
Advantageous effect：The present invention can be based on the location information of single location sensors sense switch reluctance motor, and energy
Reduce the cost of switched Reluctance Motor Control System.By optimizing traditional position detector disk plate with slots structure, propose a kind of
Only with the rotor position information detection method of a position sensor, switched reluctance machines low cost control system is constructed.
By comparing each phase winding peak point current amplitude of switched reluctance machines, the initial position section of switched reluctance machines, root are determined
According to the corresponding phase winding of location release of section.It is corresponded to according to the next position signal edge of the excitation sequence notation of motor
Serial number, switched reluctance machines rotating speed is calculated according to position signal continuous adjacent edge corresponding time, according to position signal side
It combines preset angle and the shutdown angle opened to switched reluctance machines progress commutation control along serial number, has reached the mesh of the present invention
's.Carrying the position information detection method based on single location sensor can avoid in multiple position sensor detection schemes
Asymmetric installation problem, and can realize inexpensive target, it is economical and practical, there is good engineering application value.
Description of the drawings
Fig. 1 is disk plate with slots structure and position sensor scheme of installation in single location sensor detection scheme；
Fig. 2 is the correspondence of single location sensor output position signal and each phase winding inductance of switched reluctance machines；
Fig. 3 is the output position signal edge serial number and the maximum electricity of each phase winding of switched reluctance machines of single location sensor
The correspondence of sense and minimum inductance；
Fig. 4 is the switched reluctance machines initial position section confirmation method schematic diagram based on single location sensor；
Fig. 5 is based on switched reluctance machines current amplitude in single location sensor plan and initial position section and next
The correspondence at a position signal edge；
Fig. 6 is the switched reluctance machines low cost control system block diagram based on single location sensor.
Specific implementation mode
One embodiment of the present of invention is further described below in conjunction with the accompanying drawings：
The present invention by taking the single location sensor position information detection scheme of 12/8 structure switch magnetic resistance motor of three-phase as an example,
By optimizing traditional position detector disk plate with slots structure, propose that a kind of rotor-position only with a position sensor is believed
Detection method is ceased, switched reluctance machines low cost control system is constructed.By comparing each phase winding peak of switched reluctance machines
It is worth current amplitude, the initial position section of switched reluctance machines is determined, according to the corresponding phase winding of location release of section.
According to the corresponding serial number in the next position signal edge of the excitation sequence notation of motor, according to position signal continuous adjacent edge pair
The time answered calculates switched reluctance machines rotating speed, and angle and shutdown angle are opened in conjunction with preset according to position signal edge serial number
Commutation control is carried out to switched reluctance machines, it is characterised in that：
(1) for the switched reluctance machines of 12/8 structure of three-phase, be divided between the angle between two edge of position signal 360 °/
°/8/3=7.5 °, the tooth socket sum of disk plate with slots is 2*3*8=48；The peace of disk plate with slots structure and position sensor
Holding position is as shown in Figure 1, PS is the position sensor used.The tooth socket sum that the disk plate with slots structure has is 48, and the facewidth
Equal to groove width.
(2) for the switched reluctance machines of 12/8 structure of three-phase, each edge of used position sensor output signal
It is labeled；When disk plate with slots is rotated with switched reluctance machines, output position signal and the phase winding electricity of position sensor
The correspondence of sense is as shown in Figure 2.Wherein, ' 1 '~' 6 ' be six position signal edges；' I '~' VI ' divides for each period
Six sub-regions；Δtk(k=1~6) are per the sub-regions corresponding time；For angular resolution,La、LbWith
LcThe respectively inductance of switched reluctance machines A phase windings, B phase windings and C phase windings；θ is rotor-position.
(3) correspondence such as Fig. 3 between position signal edge serial number and the maximum induction and minimum inductance of each phase winding
It is shown.' 1 ' corresponding A phase winding minimum inductance of edge；The corresponding C phase winding maximum inductions in edge ' 2 '；The corresponding B phase windings in edge ' 3 '
Minimum inductance；' 4 ' corresponding A phase winding maximum induction of edge；The corresponding C phase winding minimum inductances in edge ' 5 '；The corresponding B phases in edge ' 6 '
Winding maximum induction.
(4) Fig. 4 is that switched reluctance machines initial position determines that scheme, wherein Δ t are the width of excitation pulse, ia、ibAnd ic
For three-phase windings current value.According to the current amplitude of each phase winding, the area in conjunction with residing for each phase current peak value size in Fig. 5 and motor
Between relationship carry out initial section confirmation, initial phase excitation and the next position signal edge label.Work as ia、ibAnd icBetween pass
System meets ia>ic>ib, then the prime area of motor is VI, and excitation is mutually C phases, and the next position signal is labeled as ' 1 '；Work as ia、ibWith
icBetween relationship meet ia>ib>ic, then the prime area of motor is I, and excitation is mutually C phases and A phases, the next position signal label
It is ' 2 '；Work as ia、ibAnd icBetween relationship meet ib>ia>ic, then the prime area of motor is II, and excitation is mutually A phases, next bit
Confidence labelled notation is ' 3 '；Work as ia、ibAnd icBetween relationship meet ib>ic>ia, then the prime area of motor is III, excitation phase
For A phases and B phases, the next position signal is labeled as ' 4 '；Work as ia、ibAnd icBetween relationship meet ic>ib>ia, then motor is initial
Region is IV, and excitation is mutually B phases, and the next position signal is labeled as ' 5 '；Work as ia、ibAnd icBetween relationship meet ic>ia>ib, then
The prime area of motor is V, and excitation is mutually B phases and C phases, and the next position signal is labeled as ' 6 '.According to the inductance of each phase winding and
The commutation control of switched reluctance machines can be completed in the mark value of position signal.
(5) after switched reluctance machines start, the rotating speed of switched reluctance machines is calculated according to the time of 6 sub-regions：
Wherein, n is switched reluctance machines rotating speed；NrFor the switch reluctance machine rotor number of teeth；K is subregion serial number.
(6) the switched Reluctance Motor Control scheme based on single location sensor is as shown in Figure 6.In the control program,
Including two control rings, inner ring is electric current loop, is responsible for switched reluctance machines phase current control, outer shroud is der Geschwindigkeitkreis, is responsible for switch
Magnetic resistance motor rotor speed control.Switched reluctance machines location information detection scheme is that unit sets sensor position information detection side
Method.Rotor speed computing module is based on the calculation formula in (5).
Claims (2)
1. a kind of switched reluctance machines position information detection method based on single location sensor, by optimizing traditional position
Detector disk plate with slots structure proposes a kind of rotor position information detection method only with a position sensor, constructs
Switched reluctance machines low cost control system.By comparing each phase winding peak point current amplitude of switched reluctance machines, determination is opened
The initial position section for closing reluctance motor, according to the corresponding phase winding of location release of section.It is suitable according to the excitation of motor
Sequence marks the corresponding serial number in next position signal edge, and switch is calculated according to the position signal continuous adjacent edge corresponding time
Reluctance motor rotating speed, according to position signal edge serial number combine it is preset open angle and shutdown angle to switched reluctance machines into
Row commutation controls.
2. the switched reluctance machines position information detection method according to claim 1 based on single location sensor,
It is characterized in that：
(1) for m phases Ns/NrThe switched reluctance machines of structure are divided into 360 °/Nr/2- between the angle between two edge of position signal
360 °/Nr/m, (wherein, m is the switched reluctance machines number of phases, NsFor stator poles, NrFor rotor number of poles), the tooth socket of disk plate with slots
Sum is 2mNr/(m-2)；
(2) for the switched reluctance machines of 6/4 structure of three-phase, 15 ° are divided between the angle between two edge of position signal, fluting circle
The tooth socket sum of disk is 24；For the switched reluctance machines of 12/8 structure of three-phase, the angle interval between two edge of position signal
It it is 7.5 °, the tooth socket sum of disk plate with slots is 48；For the switched reluctance machines of four phases, 8/6 structure, two edge of position signal it
Between angle between be divided into 15 °, the tooth socket sum of disk plate with slots is 24；For the switched reluctance machines of four phases, 16/12 structure, position
7.5 ° are divided between angle between two edge of signal, the tooth socket sum of disk plate with slots is 48；
(3) tooth socket sum is used to be applicable in three-phase switch reluctance machine and four phase switch reluctance motors for 48 disk plate with slots,
With uniformity；For the switched reluctance machines of 16/12 structure of 12/8 structure of three-phase and four phases, used position sensor output
Each edge of signal is labeled；For the switched reluctance machines of 8/6 structure of 6/4 structure of three-phase and four phases, used position
The two divided-frequency edge of sensor output signal is labeled.
(4) for three-phase switch reluctance machine, it is divided into 6 according to single position sensor detection scheme, each rotor cycle is used
Sub-regions；For four phase switch reluctance motors, it is divided into according to single position sensor detection scheme, each rotor cycle is used
4 sub-regions.
(5) according to the current amplitude of each phase winding, judge motor initial Location Area, phase is corresponded to according to motor initial position excitation
Winding, it is corresponding according to position signal edge according to the corresponding serial number in regular marks position sensor position signal edge in (3)
It needs to control motor commutation with the correspondence of motor phase inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132035.9A CN108462415A (en) | 2018-02-09 | 2018-02-09 | A kind of switched reluctance machines position information detection method based on single location sensor |
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| CN201810132035.9A CN108462415A (en) | 2018-02-09 | 2018-02-09 | A kind of switched reluctance machines position information detection method based on single location sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109245659A (en) * | 2018-09-06 | 2019-01-18 | 深圳拓邦股份有限公司 | Method, system, controller and the switched reluctance machines of control switch reluctance motor |
| CN111614300A (en) * | 2020-06-18 | 2020-09-01 | 中国矿业大学 | Initial position positioning method for four-phase switched reluctance motor without position sensor |
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| CN103208957A (en) * | 2013-03-08 | 2013-07-17 | 湖南开启时代电子信息技术有限公司 | Variable-angle heavy-load start method for switched reluctance motor |
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| CN104079136A (en) * | 2014-07-08 | 2014-10-01 | 顾明 | Three-phase switch reluctance machine and sine stator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109245659A (en) * | 2018-09-06 | 2019-01-18 | 深圳拓邦股份有限公司 | Method, system, controller and the switched reluctance machines of control switch reluctance motor |
| CN111614300A (en) * | 2020-06-18 | 2020-09-01 | 中国矿业大学 | Initial position positioning method for four-phase switched reluctance motor without position sensor |
| CN111614300B (en) * | 2020-06-18 | 2023-07-04 | 中国矿业大学 | Initial position positioning method for position-sensorless of four-phase switch reluctance motor |
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Effective date of registration: 20181224 Address after: 221000 Expert Apartment 3-1-402, Wenchang Campus, China University of Mining and Technology, Jiefangnan Road, Quanshan District, Xuzhou City, Jiangsu Province Applicant after: Chen Hao Address before: 215500 No. 11 Sihai Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Applicant before: Suzhou Xian Wei mechanical and Electrical Co., Ltd. |
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Application publication date: 20180828 |