CN109713811A - Two phase permanent magnet switched reluctance machines - Google Patents
Two phase permanent magnet switched reluctance machines Download PDFInfo
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- CN109713811A CN109713811A CN201910145568.5A CN201910145568A CN109713811A CN 109713811 A CN109713811 A CN 109713811A CN 201910145568 A CN201910145568 A CN 201910145568A CN 109713811 A CN109713811 A CN 109713811A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 claims description 4
- 230000003252 repetitive effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 241000239290 Araneae Species 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims 1
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- 230000007812 deficiency Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
This application provides a kind of two phase permanent magnet switched reluctance machines, which includes: stator and rotor；Stator includes stator core, stator yoke, magnetic pole of the stator, magnetic pole of the stator winding, A phase bipolarity position sensor, B phase bipolarity position sensor；Rotor includes rotor core, rotor magnetic pole, rotor yoke, permanent magnet, armature spindle, front pressuring plate, rear fender；Stator magnet number of poles is twice of rotor magnetic pole number；Magnetic pole of the stator is evenly distributed on stator inner periphery.The stator of the application includes stator core, stator yoke, magnetic pole of the stator, magnetic pole of the stator winding, A phase and B phase bipolarity position sensor；Rotor includes rotor core, rotor magnetic pole, rotor yoke, permanent magnet, armature spindle, front pressuring plate, rear fender；Stator magnet number of poles is twice of rotor magnetic pole number；Magnetic pole of the stator is evenly distributed on stator inner periphery, is overcome the unilateral many deficiencies of excited work bring of regular tap reluctance motor, is improved electric efficiency and power density.
Description
Technical field
The present invention relates to technical field of switch reluctance motor more particularly to a kind of two phase permanent magnet switched reluctance machines.
Background technique
Switched reluctance machines generate reluctance torque using magnetic circuit reluctance minimum principle, and inputing power is converted on output shaft
Mechanical energy.
Common two-phase reluctance machine is without self-starting ability, and there are torque dead-band, efficiency and power densities to be lower than permanent magnetism
The efficiency and power density of switching magnetic-resistance.
Summary of the invention
To solve the above problems, the embodiment of the present application proposes a kind of two phase permanent magnet switched reluctance machines.
A kind of two phase permanent magnet switched reluctance machines, the two phase permanent magnet switched reluctance machines include: stator and rotor；
The stator includes stator core, the stator yoke in stator core, magnetic pole of the stator, magnetic pole of the stator winding, and A phase is bipolar
Property position sensor, B phase bipolarity position sensor；
The rotor includes rotor core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, armature spindle, preceding pressure
Plate, rear fender；
The stator magnet number of poles is twice of the rotor magnetic pole number；
The magnetic pole of the stator is evenly distributed on stator inner periphery.
Optionally, the armature spindle is that non-magnetic metal material processing forms；
The front pressuring plate, the rear fender are made by steel.
Optionally, the rotor further include: every magnetic bushing；
It is described to be formed every magnetic bushing, the front pressuring plate, the rear fender by non-magnetic metal material processing.
Optionally, the stator core, the rotor core are made by silicon steel sheet；
The stator core is salient pole stator core；
The rotor core is field spider iron core；
The non-magnetic metal material is non-magnetic stainless steel；
The permanent magnet is by rare earth permanent-magnetic material after thickness direction magnetizes, and by adjacent permanent magnet polarity N to N, S is to S's
Rule is embedded in the rotor yoke；
The distribution of N.S.N.S crossed-symmetrical is presented in rotor magnetic pole after magnetization.
Optionally, coiling magnetic pole of the stator winding on the magnetic pole of the stator, and with the stator magnet on mutually adjacent magnetic pole of the stator
Pole winding technique is contrary；
The magnetic pole of the stator winding of affiliated same phase forms phase winding, ultimately forms two phase windings；
The magnetic pole of the stator is distributed to the A phase and B phase of two-phase phase winding by A.B.A.B uniform crossover, wherein A, B are
Mutually identify；
Two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously.
Optionally, A phase includes magnetic pole of the stator A1, A2, A3, A4；
B phase includes magnetic pole of the stator B1, B2, B3, B4；
A1And A3Magnetic pole of the stator winding forward direction coiling, A2And A4Magnetic pole of the stator winding it is oppositely wound；
B1And B3Magnetic pole of the stator winding forward direction coiling, B2And B4Magnetic pole of the stator winding it is oppositely wound；
The corresponding H bridge of A includes T1Power tube, T2Power tube, T3Power tube, T4Power tube；
The corresponding H bridge of B includes T5Power tube, T6Power tube, T7Power tube, T8Power tube；
Rotor magnetic pole includes N1, S1, N2, S2；
A before two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously1With N1Alignment；
When two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously, if rotor clockwise
Direction rotates, then repetitive sequence executes following 4 beats,
First beat: A1With N1Alignment, A phase flow through positive current, and B phase flows through negative current, the T of A phase1, T4Conducting, the T of A phase2,
T3Shutdown, the T of B phase6, T7Conducting, the T of B phase5, T8Shutdown；
Second beat: B1With N1Alignment, A phase flow through positive current, and B phase flows through positive current, the T of A phase1, T4Conducting, the T of A phase2,
T3Shutdown, the T of B phase5, T8Conducting, the T of B phase6, T7Shutdown；
Third beat: A1With S2Alignment, A phase flow through negative current, and B phase flows through positive current, the T of A phase2, T3Conducting, the T of A phase1,
T4Shutdown, the T of B phase5, T8Conducting, the T of B phase6, T7Shutdown；
4th beat: B1With S2Alignment, A phase flow through negative current, and B phase flows through negative current, the T of A phase2, T3Conducting, the T of A phase1,
T4Shutdown, the T of B phase6, T7Conducting, the T of B phase5, T8Shutdown.
Optionally, the stator further includes stator rabbet；
The polar arc angle of the magnetic pole of the stator is equal to the polar arc angle of the stator rabbet；
The polar arc angle of the magnetic pole of the stator is equal to the half at the pole span angle of stator.
Optionally, the rotor magnetic pole is made of arc section and saw-tooth ramp section；
The central angle φ of the arc section1Equal to the central angle φ of the saw-tooth ramp section2；
φ1+φ2=τ；
The τ is the pole span angle of stator.
Optionally, the saw-tooth ramp section BC is made of three-level sawtooth；
Tooth pitch between three-level sawtooth is
C point is the minimum point of the rotor magnetic pole；
B point is the point for meeting preset relation with C point；
The preset relation is B point and the high drop of tooth of C point is 0.2 millimeter.
Optionally, the front pressuring plate includes positioning pin, and the rear fender includes positioning pin, and the rotor core includes positioning
Hole；
It is described to be mounted on the armature spindle every magnetic bushing adapter sleeve；
The positioning pin of the positioning pin of the front pressuring plate and the rear fender is aligned with the location hole of rotor core；
The rotor core and the permanent magnet are respectively positioned on described every on magnetic bushing；
The front pressuring plate and the rear fender carry out precession by fastening nut and tighten, so as to by the rotor core, institute
It states permanent magnet, the armature spindle and described is assembled into integral rotor every magnetic bushing.
It has the beneficial effect that:
The stator of two phase permanent magnet switched reluctance machines provided by the present application includes stator core, the stator in stator core
Yoke, magnetic pole of the stator, magnetic pole of the stator winding, A phase bipolarity position sensor, B phase bipolarity position sensor；Rotor includes rotor
Iron core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, armature spindle, front pressuring plate, rear fender；The number of poles of stator is rotor
Twice of number of poles；Magnetic pole of the stator is evenly distributed on stator inner periphery, overcomes the unilateral excitation work of regular tap reluctance motor
Make many deficiencies of bring, improves electric efficiency and power density.
Detailed description of the invention
The specific embodiment of the application is described below with reference to accompanying drawings, in which:
Fig. 1 shows a kind of schematic cross-section of two phase permanent magnet switched reluctance machines of one embodiment of the application offer；
A kind of pole yoke of the two phase permanent magnet switched reluctance machines provided Fig. 2 shows one embodiment of the application is to magnetized rotor
Schematic cross-section；
Fig. 3 shows arc section and the signal of saw-tooth ramp segment structure of a kind of rotor magnetic pole of one embodiment of the application offer
Figure；
Fig. 4 shows a kind of structural schematic diagram of rotor of one embodiment of the application offer；
Fig. 5 shows a kind of structural schematic diagram of stator core front and back pressing plate of one embodiment of the application offer；
Fig. 6 shows a kind of A phase winding expanded schematic diagram of one embodiment of the application offer；
Fig. 7 shows a kind of B phase winding expanded schematic diagram of one embodiment of the application offer；
Fig. 8 shows the structural schematic diagram of the two phase winding connection figure of one kind of one embodiment of the application offer；
Fig. 9 shows a kind of power circuit figure of two phase permanent magnet switched reluctance machines of one embodiment of the application offer；
Figure 10 shows a kind of two phase permanent magnet switched reluctance machines A of one embodiment of the application offer1N1Rotor when alignment
Magnetic pole status diagram；
Figure 11 shows a kind of two phase permanent magnet switched reluctance machines B of one embodiment of the application offer1N1Rotor when alignment
Magnetic pole status diagram；
Figure 12 shows a kind of two phase permanent magnet switched reluctance machines A of one embodiment of the application offer1S2Rotor when alignment
Magnetic pole status diagram；
Figure 13 shows a kind of two phase permanent magnet switched reluctance machines B of one embodiment of the application offer1S2Rotor when alignment
Magnetic pole status diagram.
Drawing reference numeral explanation:
11- stator yoke, 12- magnetic pole of the stator, 13- magnetic pole of the stator winding, 14- rotor magnetic pole, 15- rotor yoke, 16- rotor magnetic
Polar circle segmental arc, 17- rotor magnetic pole saw-tooth ramp section, 18- permanent magnet, 19- armature spindle, 20- turn every magnetic bushing, 10- rivet, 21-
Axis platform rank, 22- front pressuring plate, 23- rear fender, 24- fastening nut, 25- rotor core, 30-A phase bipolarity position sensor, 31-
B phase bipolarity position sensor.
Specific embodiment
Common two-phase reluctance machine is without self-starting ability, and there are torque dead-band, efficiency and power densities to be lower than permanent magnetism
The efficiency and power density of switching magnetic-resistance.
In consideration of it, the stator of the motor includes stator core this application provides a kind of two phase permanent magnet switched reluctance machines,
Stator yoke in stator core, magnetic pole of the stator, magnetic pole of the stator winding, A phase bipolarity position sensor, the phase bipolarity position B pass
Sensor；Rotor includes rotor core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, armature spindle, front pressuring plate, rear to press
Plate；Stator magnet number of poles is twice of rotor magnetic pole number；Magnetic pole of the stator is evenly distributed on stator inner periphery, overcomes regular tap
The unilateral many deficiencies of excited work bring of reluctance motor, improve electric efficiency and power density.
Two phase permanent magnet switched reluctance machines provided in this embodiment, referring to Fig. 1, the two phase permanent magnet switched reluctance machines packet
It includes: stator and rotor.
1, stator
Stator includes stator core, the stator yoke in stator core, magnetic pole of the stator, magnetic pole of the stator winding, A phase bipolarity position
Set sensor, B phase bipolarity position sensor.
Wherein,
1) magnetic pole of the stator is evenly distributed on stator inner periphery.
2) stator core is made by silicon steel sheet.
3) coiling magnetic pole of the stator winding on magnetic pole of the stator, and with the magnetic pole of the stator winding technique on mutually adjacent magnetic pole of the stator
It is contrary.
4) the magnetic pole of the stator winding of same phase belonging to forms phase winding, and two phase permanent magnet switched reluctance machines have a two-phase, A phase and
B phase, the magnetic pole of the stator winding of affiliated A phase form A phase winding AX, and the magnetic pole of the stator winding of affiliated B phase forms B phase winding BY, because
This ultimately forms two phase windings (AX, BY).
Wherein, A, B are respectively mutually identified.AX is A phase winding, and corresponding positive current is flowed into from the end A, the outflow of the end X.BY is B
Phase winding, corresponding positive current are flowed into from the end B, the outflow of the end Y.
Magnetic pole of the stator distributes to A phase and B phase by A.B.A.B uniform crossover.
Two-phase phase winding is respectively adopted the single-phase H bridge of single-phase IGBT or MOSFET independently and powers simultaneously.
A phase includes magnetic pole of the stator A1, A2, A3, A4；
B phase includes magnetic pole of the stator B1, B2, B3, B4；
A1And A3Magnetic pole of the stator winding forward direction coiling, A2And A4Magnetic pole of the stator winding it is oppositely wound.
B1And B3Magnetic pole of the stator winding forward direction coiling, B2And B4Magnetic pole of the stator winding it is oppositely wound.
The corresponding H bridge of A includes T1Power tube, T2Power tube, T3Power tube, T4Power tube.
The corresponding H bridge of B includes T5Power tube, T6Power tube, T7Power tube, T8Power tube.
Rotor magnetic pole includes N1, S1, N2, S2。
According to commutation rule in current commutation table shown in table 1, it is independent and same that single-phase H bridge is respectively adopted in two phase winding of A, B
When power, so that the electromagnetic mechanism of two phase permanent magnet switched reluctance machines is maximized the use, whole electromagnetic mechanisms do work jointly,
Efficiently convert electrical energy into mechanical energy.It may be implemented in any operative beat, two phase winding of A.B is powered simultaneously, two phase permanent magnet
The electromagnetic torque that all stator-rotator magnetic interpolars of switched reluctance machines generate is drag torque.
That is:
A before two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously1With N1Alignment.
When two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously, if rotor clockwise
Direction rotates, then repetitive sequence executes following 4 beats,
First beat: A1With N1Alignment, A phase flow through positive current, and B phase flows through negative current, the T of A phase1, T4Conducting, the T of A phase2,
T3Shutdown, the T of B phase6, T7Conducting, the T of B phase5, T8Shutdown；
Second beat: B1With N1Alignment, A phase flow through positive current, and B phase flows through positive current, the T of A phase1, T4Conducting, the T of A phase2,
T3Shutdown, the T of B phase5, T8Conducting, the T of B phase6, T7Shutdown；
Third beat: A1With S2Alignment, A phase flow through negative current, and B phase flows through positive current, the T of A phase2, T3Conducting, the T of A phase1,
T4Shutdown, the T of B phase5, T8Conducting, the T of B phase6, T7Shutdown；
4th beat: B1With S2Alignment, A phase flow through negative current, and B phase flows through negative current, the T of A phase2, T3Conducting, the T of A phase1,
T4Shutdown, the T of B phase6, T7Conducting, the T of B phase5, T8Shutdown.
Table 1
As shown in Figure 6 to 8, the A of A phase1And A3Magnetic pole of the stator winding forward direction coiling, A2And A4Magnetic pole of the stator winding
It is oppositely wound；Similarly, the B of B phase1And B3Magnetic pole of the stator winding forward direction coiling, B2And B4Magnetic pole of the stator winding it is oppositely wound.A
Phase magnetic pole of the stator winding head end a1, a2, a3, a4It indicates, end x1, x2, x3, x4Symbol indicates that B phase magnetic pole of the stator winding is first
Use b in end1, b2, b3, b4It indicates, end y1, y2, y3, y4Symbol indicates.The Same Name of Ends of magnetic pole of the stator winding is indicated with " * ".AX is
A phase winding is flowed into from the end A, and the electric current of the end X outflow is positive current (+IA), otherwise it is negative current (- IA).BY is B phase winding, from B
End flows into, and the electric current of the end Y outflow is positive current (+IB), otherwise it is negative current (- IB)。N1、S1、N2、S2It is both rotor magnetic pole number
Also represent pole polarity.Rear stage stator magnet is connected according to previous stage magnetic pole of the stator winding ends with mutually each magnetic pole of the stator winding
The head end of pole winding is constituted phase winding (AX, BY).As shown in figure 8, AX phase winding and BX phase winding respectively by single-phase IGBT (or
MOSFETH) bridge is independently-powered, according to changing in current commutation table shown in the information of A, B two-phase bipolarity rotor-position and table 1
Phase current rule realizes that two phase windings are powered simultaneously, and can guarantee motor all stator-rotator magnetic interpolars in any work pace
The electromagnetic torque of generation is the drag torque with rotary speed direction.Motor operation is high-efficient, and power density is big.
5) stator core is salient pole stator core.
6) A phase bipolarity position sensor is used, B phase bipolarity position sensor detects rotor magnetic pole position.
7) stator further includes stator rabbet.
The polar arc angle of magnetic pole of the stator is equal to the polar arc angle of stator rabbet.
The polar arc angle of magnetic pole of the stator is equal to the half at the pole span angle of stator.
2, rotor
Rotor includes rotor core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, armature spindle, front pressuring plate, after
Pressing plate.
The specific structure of rotor has the following two kinds:
The first: rotor includes rotor core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, and armature spindle is preceding
Pressing plate, rear fender.
Armature spindle is that non-magnetic metal material processing forms.
For example, non-magnetic metal material is non-magnetic stainless steel.
Front pressuring plate, rear fender are made by steel.
Second: rotor includes rotor core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, and armature spindle is preceding
Pressing plate, rear fender, every magnetic bushing.
It is formed every magnetic bushing, front pressuring plate, rear fender by non-magnetic metal material processing.
For example, non-magnetic metal material is non-magnetic stainless steel.
I.e. if armature spindle makes of non-magnetic stainless steel, can cancel at this time every magnetic bushing, front pressuring plate and rear fender
It is made with ordinary steel.Otherwise, rotor includes every magnetic bushing, every magnetic bushing, front pressuring plate, rear fender by non-magnetic gold
Belong to material to be process.
No matter the first structure or second of structure, all have:
1) rotor core is field spider iron core.
2) number of poles of stator is twice of the number of poles of rotor.
3) rotor core is made by silicon steel sheet.
4) permanent magnet is by high magnetic flux density, the rare earth permanent-magnetic material of high energy product after thickness direction magnetizes, by it is adjacent forever
Magnet polarity N is to N, and S is in the rule insertion rotor yoke of S.
5) distribution of N.S.N.S ... crossed-symmetrical is presented in the rotor magnetic pole after magnetizing.
6) rotor magnetic pole is made of arc section and saw-tooth ramp section.
The central angle φ of arc section1(mechanical angle) is equal to the central angle φ of saw-tooth ramp section2, i.e. φ1=φ2。
Total radian (the φ of rotor magnetic pole1+φ2) it is twice of the polar arc angle of magnetic pole of the stator, and it is equal to the pole span angle of stator
τ, i.e. φ1+φ2=τ.
Wherein, τ is the pole span angle of stator.
Saw-tooth ramp section BC is made of three-level sawtooth.
Tooth pitch between three-level sawtooth is
C point is the minimum point of rotor magnetic pole.
B point is the point for meeting preset relation with C point.
Preset relation is B point and the high drop of tooth of C point is 0.2 millimeter.
I.e. rotor magnetic pole saw-tooth ramp section B point to C point radial direction drop is 0.6mm, and BC sections with the high drop 0.2mm of tooth, tooth pitchAngle constitute, it is as shown in Figure 3 that each tooth tip forms linear ramp.That is the total circular arc degree width of rotor magnetic pole is stator magnet polar arc
Wide twice.
RHIt is rotor yoke arc radius, RCIt is rotor saw-tooth ramp section C null circle arc radius.
7) front pressuring plate includes positioning pin, and rear fender includes positioning pin, and rotor core includes location hole.
Every magnetic bushing adapter sleeve on armature spindle.
The positioning pin and the positioning pin of rear fender and the location hole of rotor core of front pressuring plate are aligned.
Rotor core and permanent magnet are respectively positioned on every on magnetic bushing.
Front pressuring plate and rear fender carry out precession by fastening nut and tighten, so as to by rotor core, permanent magnet, armature spindle and
Integral rotor is assembled into every magnetic bushing.
For example, being first assembled into single pole core with the method for tightening of rivet after rotor core silicon steel sheet punch forming
Then body carries out rotor assembly as shown in Figure 4 again, every magnetic bushing adapter sleeve on armature spindle, front pressuring plate and rear fender are used
Non-magnetic stainless steel production, as shown in figure 5, the positioning pin (being not shown in Fig. 5) of pressing plate and rotor magnetic before and after in assembling process
The location hole (being not shown in Fig. 5) of pole iron-core workpiece is aligned, and rotor magnetic pole iron core and permanent magnet are respectively positioned on every on magnetic bushing, before utilization
Rear fender and the fastening nut precession effect of tightening, by rotor magnetic pole iron core, permanent magnet, armature spindle and every magnetic bushing assemble it is integral
Rotor.
Referring to work pace shown in Figure 10 to Figure 13, the commutation in the current commutation table in conjunction with shown in table 1 is regular, this reality
Two phase permanent magnet switched reluctance machines mechanism and the course of work for applying example offer are as follows:
If two phase permanent magnet switched reluctance machines provided in this embodiment are under halted state, structure is as shown in Figure 10, this
When, magnetic pole of the stator A1With rotor magnetic pole N1, i.e. A1N1Rotor magnetic pole alignment, according to position locating for saw-tooth ramp section in rotor magnetic pole
It sets, two phase permanent magnet switched reluctance machines provided in this embodiment can only be rotated clockwise.
According to current commutation table shown in table 1 and power circuit Fig. 9 is combined to switch to two phase permanent magnet provided in this embodiment
Reluctance motor power supply:
First beat: referring to Figure 10, A in Figure 101N1It has been being aligned that, two phase permanent magnet switched reluctance machines are rotated clockwise,
In Fig. 9 power circuit figure, T is triggered1, T4The conducting of two power tubes, A phase winding flow through positive current (+IA), at the same time, triggering
T6, T7The conducting of two power tubes, B phase winding flow through negative current (- IB), the current direction (⊕ in each phase winding has been marked in Figure 10
Indicate that electric current flows into, ⊙ indicates electric current outflow), according to right-hand screw rule and law of electromagnetic force:
(1) B phase magnetic pole of the stator B1And B3For S polarity, and respectively to rotor magnetic pole N1And N2Generate clockwise electromagnetism
Attraction；Magnetic pole of the stator B2And B4For N polarity, and respectively to rotor magnetic pole S1And S2Generate clockwise electromagnetic attraction.
(2) at the same time, A phase magnetic pole of the stator A1And A3For N polarity, and respectively with rotor magnetic pole N1And N2Same polarity alignment,
Magnetic pole of the stator A2And A4For S polarity, and respectively with rotor magnetic pole S1And S2Same polarity alignment is rotated in the rotor of force unbalance
In body, four magnetic pole A of A phase1To N1, A2To S1, A3To N2, A4To S2The electromagnetic force that clockwise direction same polarity is repelled is generated respectively,
Two phase permanent magnet switched reluctance machines whole stator-rotator magnetic interpolar generates equidirectional electromagnetic force, and dragging electromagnetic torque is collectively formed,
Rotor is rotated clockwise, until B phase magnetic pole of the stator B1With N1(rotor has turned through the pole span of stator at this time until alignment
Angle τ, τ unit are degree), as shown in figure 11, work as B1N1After alignment, B phase bipolarity position sensor issues current commutation information, closes
Disconnected T1, T4And T6, T7Power tube, into the second beat.
Second beat: magnetic pole of the stator, rotor magnetic pole be on the position shown in Figure 11, at this time magnetic pole of the stator B1With rotor magnetic pole N1
Alignment, i.e. B1N1Alignment.In conjunction with Fig. 9 power circuit figure, T is triggered1, T4The conducting of two power tubes, A phase winding is for positive current (+IA), with
This triggers T simultaneously5And T8The conducting of two pipes, B phase winding is for positive current (+IB), the electric current in each phase winding has been marked in Figure 11
Direction, according to right-hand screw rule and law of electromagnetic force:
(1) A phase magnetic pole of the stator A1And A3For N polarity, and respectively to rotor magnetic pole S2And S1Generate clockwise electromagnetism
Attraction；Magnetic pole of the stator A2And A4For S magnetic polarity, and respectively to rotor magnetic pole N1And N2Generate clockwise electromagnetic attraction
Power.
(2) at the same time, B phase magnetic pole of the stator B1And B3For N polarity, and respectively with rotor magnetic pole N1And N2Same polarity it is right
Together, magnetic pole of the stator B2And B4For S polarity, and respectively with rotor magnetic pole S1And S2It is aligned to same polarity, in the rotor of force unbalance
In rotary body, four magnetic pole of the stator B of B phase1To N1, B2To S1, B3To N2, B4To S2Clockwise direction same polarity is generated respectively to repel
Electromagnetic force, two phase permanent magnet switched reluctance machines whole stator-rotator magnetic interpolar generates equidirectional electromagnetic force, dragging is collectively formed
Electromagnetic torque, two phase permanent magnet switch reluctance machine rotor are rotated clockwise, until A phase magnetic pole of the stator A1With rotor magnetic pole S2
Until alignment (the pole span angle τ that rotor turns over a stator again at this time), as shown in figure 12, work as A1S2After alignment, A phase is bipolar
Property position sensor issue current commutation information, turn off T1, T4And T5, T8Power tube, into third beat.
Third beat: magnetic pole of the stator, rotor magnetic pole be on the position shown in Figure 12, at this time magnetic pole of the stator A1With rotor magnetic pole S2
Alignment.In Fig. 9 power circuit figure, T is triggered2And T3The conducting of two power tubes, A phase winding is for negative current (- IA), at the same time, touching
Send out T5And T8The conducting of two pipes, B phase winding is for positive current (+IB), the current direction in each phase winding has been marked in Figure 12, according to
Known to right-hand screw rule and law of electromagnetic force:
(1) B phase magnetic pole of the stator B1And B3For N magnetic polarity, and respectively to rotor magnetic pole S2And S1Generate clockwise electricity
Magnetic attraction；Magnetic pole of the stator B2And B4For S magnetic polarity, and respectively to rotor magnetic pole N1And N2Clockwise electromagnetism is generated to inhale
Gravitation.
(2) at the same time, A phase magnetic pole of the stator A1And A3For S polarity, and respectively with rotor magnetic pole S2And S1With magnetic polarity
Alignment, magnetic pole of the stator A2And A4For N polarity, and respectively with rotor magnetic pole N1And N2It is aligned to same polarity, in turning for force unbalance
In sub- rotary body, four magnetic pole of the stator A of A phase1To S2, A2To N1, A3To S1, A4To N2Clockwise direction same polarity row is generated respectively
Denounce electromagnetic force, in this beat, whole stator-rotator magnetic interpolars generate equidirectional electromagnetic force, dragging electromagnetic torque is collectively formed,
Two phase permanent magnet switch reluctance machine rotor is rotated clockwise, until B phase magnetic pole of the stator B1With rotor magnetic pole S2Until alignment
(the pole span angle τ that rotor turns over again stator at this time), as shown in figure 13, works as B1S2After alignment, B phase bipolarity position sensor
Current commutation signal is issued, T is turned off2, T3And T5, T8Four power tubes, into the 4th beat.
4th beat: magnetic pole of the stator, rotor magnetic pole be on the position shown in Figure 13, at this time magnetic pole of the stator B1With rotor magnetic pole S2
Alignment, i.e. B1S2Alignment.In Fig. 9 power circuit figure, T is triggered2And T3The conducting of two power tubes, A phase winding is for negative current (- IA),
At the same time, T is triggered6And T7The conducting of two pipes, B phase winding is for negative current (- IB), the electricity in each phase winding has been marked in Figure 13
Direction is flowed, according to right-hand screw rule and law of electromagnetic force:
(1) A phase magnetic pole of the stator A1And A3For S magnetic polarity, and respectively to rotor magnetic pole N2And N1Generate clockwise electricity
Magnetic attraction；Magnetic pole of the stator A2And A4For N magnetic polarity, and respectively with rotor magnetic pole S1And S2Clockwise electromagnetism is generated to inhale
Gravitation.
(2) at the same time, B phase magnetic pole of the stator B1And B3For S polarity, and respectively with rotor magnetic pole S2And S1With magnetic polarity
Alignment, B2And B4For N polarity, and respectively with rotor magnetic pole N1And N2It with magnetic polarity is aligned, is rotated in the rotor of force unbalance
In body, four magnetic pole of the stator of B phase, B1To S2, B2To N1, B3To S1, B4To N2The repulsion electricity of clockwise direction same polarity is generated respectively
Magnetic force, two phase permanent magnet switched reluctance machines whole stator-rotator magnetic interpolar generate equidirectional electromagnetic force, dragging electromagnetism are collectively formed
Torque, two phase permanent magnet switch reluctance machine rotor are rotated clockwise, until A phase magnetic pole of the stator A1With rotor magnetic pole N2Alignment
Until (the pole span angle τ that rotor turns over again stator at this time), work as A1N2After alignment, A phase position sensor issues commutation signal,
Conduction pipe pipe (T in switch-off power circuit2, T3, T6, T7), into next beat.
After two phase permanent magnet switched reluctance machines complete four beats, magnetic pole of the stator, rotor magnetic pole present position are returned to
State shown in Fig. 10, it is unique the difference is that magnetic pole of the stator A1Changed with the pole serial number for the rotor magnetic pole being aligned, magnetic
Polarity does not change, so subsequent current commutation rule is successively from the first beat to the repetitive cycling process of the 4th beat, week
And renew, two phase permanent magnet switched reluctance machines convert electrical energy into mechanical energy, drive production load and do work.
It is embedded in what thickness direction magnetized in the rotor core magnetic yoke of two phase permanent magnet switched reluctance machines provided in this embodiment
High energy product permanent magnet, the rotor magnetic pole after magnetization are distributed on rotor core in N, S, N, S ... uniform crossover, magnetic energy
Greatly, utilization rate is high.
In addition, two phase permanent magnet switched reluctance machines provided in this embodiment include one by arc section and saw-tooth ramp section structure
At rotor magnetic pole, the total radian φ of rotor magnetic pole1+φ2Equal to the pole span angle τ of stator, so that two-phase switched reluctance machines have
Acceleration capacity after starting capability and starting.
In addition, the stator magnet number of poles of two phase permanent magnet switched reluctance machines provided in this embodiment is the two of rotor magnetic pole number
Times, after the independently-powered excitation of two phase windings, magnetic pole of the stator polarity is distributed by N, N, S, S, N, N, S, S ....Make each rotor magnetic
The saw-tooth ramp section and magnetic pole of the stator of pole generate electromagnetic attraction, and arc section and magnetic pole of the stator generate equidirectional repulsive force.
In addition, the rule according to current commutation table shown in table 1 carries out current commutation, can guarantee in any work pace
It is any instantaneous, it is formed by the electromagnetic action of all stator-rotator magnetic interpolars of two phase permanent magnet switched reluctance machines provided in this embodiment
Electromagnetic torque be drag torque, the electromagnetic mechanism of motor is fully used, realize efficiently, high power density, by electric energy turn
It is changed to mechanical energy.
In addition, two phase permanent magnet switched reluctance machines provided in this embodiment are one direction rotating electric machines.The saw of rotor magnetic pole
Tooth slope section present position has determined the rotary speed direction of motor.Suitable for twice that all stator magnet numbers of poles are even number rotor magnetic poles
Two phase permanent magnet switched reluctance machines.
Two phase permanent magnet switched reluctance machines provided in this embodiment are to turn using by arc section and saw-tooth ramp section two-part
The two-phase switched reluctance machines of sub- magnetic pole, the problem of capable of efficiently solving self-starting ability and decrease or even eliminate torque dead-band,
Improve the performance of motor.The permanent magnet of high energy product is reasonably embedded in rotor rim, two phase permanent magnet switched reluctance machines exist
In work, electromagnetic torque is generated by stator excitation magnetic field and rotor permanent magnet magnetic field jointly, overcomes regular tap reluctance motor list
The many deficiencies of side excited work bring, greatly improve electric efficiency and power density, at the same time, in many works
Industry application, load only allow one direction to run, typical case load such as blower, pump-type load, permanent magnetism of the invention
Two-phase switched reluctance machines, are exclusively used in such load, efficiency and power density ratio can the similar motor of reverse rotation is higher, performance more
It is good.
Two phase permanent magnet switched reluctance machines provided in this embodiment are that lower rotor part yoke is loaded suitable for blower fan water pump to magnetization
Two phase permanent magnet switched reluctance machines.
The stator of two phase permanent magnet switched reluctance machines provided in this embodiment includes stator core, the stator in stator core
Yoke, magnetic pole of the stator, magnetic pole of the stator winding, A phase bipolarity position sensor, B phase bipolarity position sensor；Rotor includes rotor
Iron core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, armature spindle, front pressuring plate, rear fender；Stator magnet number of poles is rotor
Twice of number of magnetic poles；Magnetic pole of the stator is evenly distributed on stator inner periphery, overcomes the unilateral excitation work of regular tap reluctance motor
Make many deficiencies of bring, improves electric efficiency and power density.
It should be clear that the invention is not limited to specific configuration described above and shown in figure and processing.
For brevity, it is omitted here the detailed description to known method.In the above-described embodiments, several tools have been described and illustrated
The step of body, is as example.But method process of the invention is not limited to described and illustrated specific steps, this field
Technical staff can be variously modified, modification and addition after understanding spirit of the invention, or suitable between changing the step
Sequence.
It should also be noted that, the exemplary embodiment referred in the present invention, is retouched based on a series of step or device
State certain methods or system.But the present invention is not limited to the sequence of above-mentioned steps, that is to say, that can be according in embodiment
The sequence referred to executes step, may also be distinct from that the sequence in embodiment or several steps are performed simultaneously.
Finally, it should be noted that above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to part of or all technical features into
Row equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (10)
1. a kind of two phase permanent magnet switched reluctance machines, which is characterized in that the two phase permanent magnet switched reluctance machines include: stator and
Rotor；
The stator includes stator core, the stator yoke in stator core, magnetic pole of the stator, magnetic pole of the stator winding, A phase bipolarity position
Set sensor, B phase bipolarity position sensor；
The rotor includes rotor core, the rotor magnetic pole in rotor core, rotor yoke, permanent magnet, armature spindle, front pressuring plate, after
Pressing plate；
The stator magnet number of poles is twice of the rotor magnetic pole number；
The magnetic pole of the stator is evenly distributed on stator inner periphery.
2. two phase permanent magnet switched reluctance machines according to claim 1, which is characterized in that the armature spindle is non-magnetic
Metal material processing forms；
The front pressuring plate, the rear fender are made by steel.
3. two phase permanent magnet switched reluctance machines according to claim 1, which is characterized in that the rotor further include: every magnetic
Bushing；
It is described to be formed every magnetic bushing, the front pressuring plate, the rear fender by non-magnetic metal material processing.
4. two phase permanent magnet switched reluctance machines according to claim 2 or 3, which is characterized in that the stator core, described
Rotor core is made by silicon steel sheet；
The stator core is salient pole stator core；
The rotor core is field spider iron core；
The non-magnetic metal material is non-magnetic stainless steel；
The permanent magnet by rare earth permanent-magnetic material after thickness direction magnetizes, by adjacent permanent magnet polarity N to N, rule of the S to S
It is embedded in the rotor yoke；
The distribution of N.S.N.S crossed-symmetrical is presented in rotor magnetic pole after magnetization.
5. two phase permanent magnet switched reluctance machines according to claim 4, which is characterized in that around formulation on the magnetic pole of the stator
Sub- magnetic pole winding, and it is contrary with the magnetic pole of the stator winding technique on mutually adjacent magnetic pole of the stator；
The magnetic pole of the stator winding of affiliated same phase forms phase winding, ultimately forms two phase windings；
The magnetic pole of the stator is distributed to the A phase and B phase of two-phase phase winding by A.B.A.B uniform crossover, wherein A, B are mutually to mark
Know；
Two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously.
6. two phase permanent magnet switched reluctance machines according to claim 5, which is characterized in that
A phase includes magnetic pole of the stator A1, A2, A3, A4；
B phase includes magnetic pole of the stator B1, B2, B3, B4；
A1And A3Magnetic pole of the stator winding forward direction coiling, A2And A4Magnetic pole of the stator winding it is oppositely wound；
B1And B3Magnetic pole of the stator winding forward direction coiling, B2And B4Magnetic pole of the stator winding it is oppositely wound；
The corresponding H bridge of A includes T1Power tube, T2Power tube, T3Power tube, T4Power tube；
The corresponding H bridge of B includes T5Power tube, T6Power tube, T7Power tube, T8Power tube；
Rotor magnetic pole includes N1, S1, N2, S2；
A before two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously1With N1Alignment；
When two-phase phase winding is respectively adopted the single-phase H bridge of IGBT or MOSFET independently and powers simultaneously, if rotor clockwise direction
Rotation, then repetitive sequence executes following 4 beats,
First beat: A1With N1Alignment, A phase flow through positive current, and B phase flows through negative current, the T of A phase1, T4Conducting, the T of A phase2, T3It closes
It is disconnected, the T of B phase6, T7Conducting, the T of B phase5, T8Shutdown；
Second beat: B1With N1Alignment, A phase flow through positive current, and B phase flows through positive current, the T of A phase1, T4Conducting, the T of A phase2, T3It closes
It is disconnected, the T of B phase5, T8Conducting, the T of B phase6, T7Shutdown；
Third beat: A1With S2Alignment, A phase flow through negative current, and B phase flows through positive current, the T of A phase2, T3Conducting, the T of A phase1, T4It closes
It is disconnected, the T of B phase5, T8Conducting, the T of B phase6, T7Shutdown；
4th beat: B1With S2Alignment, A phase flow through negative current, and B phase flows through negative current, the T of A phase2, T3Conducting, the T of A phase1, T4It closes
It is disconnected, the T of B phase6, T7Conducting, the T of B phase5, T8Shutdown.
7. two phase permanent magnet switched reluctance machines according to claim 1, which is characterized in that the stator further includes stator slot
Mouthful；
The polar arc angle of the magnetic pole of the stator is equal to the polar arc angle of the stator rabbet；
The polar arc angle of the magnetic pole of the stator is equal to the half at the pole span angle of stator.
8. two phase permanent magnet switched reluctance machines according to claim 1, which is characterized in that the rotor magnetic pole is by arc section
It is formed with saw-tooth ramp section；
The central angle φ of the arc section1Equal to the central angle φ of the saw-tooth ramp section2；
φ1+φ2=τ；
The τ is the pole span angle of stator.
9. two phase permanent magnet switched reluctance machines according to claim 8, which is characterized in that the saw-tooth ramp section BC is by three
Grade sawtooth is constituted；
Tooth pitch between three-level sawtooth is
C point is the minimum point of the rotor magnetic pole；
B point is the point for meeting preset relation with C point；
The preset relation is B point and the high drop of tooth of C point is 0.2 millimeter.
10. two phase permanent magnet switched reluctance machines according to claim 4, which is characterized in that the front pressuring plate includes positioning
Pin, the rear fender includes positioning pin, and the rotor core includes location hole；
It is described to be mounted on the armature spindle every magnetic bushing adapter sleeve；
The positioning pin of the positioning pin of the front pressuring plate and the rear fender is aligned with the location hole of rotor core；
The rotor core and the permanent magnet are respectively positioned on described every on magnetic bushing；
The front pressuring plate and the rear fender carry out precession by fastening nut and tighten, so as to by the rotor core, it is described forever
Magnet, the armature spindle and described integral rotor is assembled into every magnetic bushing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910145568.5A CN109713811A (en) | 2019-02-27 | 2019-02-27 | Two phase permanent magnet switched reluctance machines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910145568.5A CN109713811A (en) | 2019-02-27 | 2019-02-27 | Two phase permanent magnet switched reluctance machines |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016082775A (en) * | 2014-10-20 | 2016-05-16 | アスモ株式会社 | Motor and driving method for motor |
| CN108400660A (en) * | 2018-05-11 | 2018-08-14 | 湖南开启时代电子信息技术有限公司 | A kind of more magnetic pole two-phase switched reluctance machines of double-pole type and its power driving circuit |
| CN208257638U (en) * | 2018-06-20 | 2018-12-18 | 湖南开启时代电子信息技术有限公司 | Double-pole type permanent-magnet type two-phase switched reluctance machines |
| CN209267286U (en) * | 2019-02-27 | 2019-08-16 | 长沙硕博电子科技股份有限公司 | Two phase permanent magnet switched reluctance machines |
-
2019
- 2019-02-27 CN CN201910145568.5A patent/CN109713811A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016082775A (en) * | 2014-10-20 | 2016-05-16 | アスモ株式会社 | Motor and driving method for motor |
| CN108400660A (en) * | 2018-05-11 | 2018-08-14 | 湖南开启时代电子信息技术有限公司 | A kind of more magnetic pole two-phase switched reluctance machines of double-pole type and its power driving circuit |
| CN208257638U (en) * | 2018-06-20 | 2018-12-18 | 湖南开启时代电子信息技术有限公司 | Double-pole type permanent-magnet type two-phase switched reluctance machines |
| CN209267286U (en) * | 2019-02-27 | 2019-08-16 | 长沙硕博电子科技股份有限公司 | Two phase permanent magnet switched reluctance machines |
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