CN107294323A - A kind of axial permanent magnetic auxiliary reluctance motor and its control method - Google Patents
A kind of axial permanent magnetic auxiliary reluctance motor and its control method Download PDFInfo
- Publication number
- CN107294323A CN107294323A CN201710591977.9A CN201710591977A CN107294323A CN 107294323 A CN107294323 A CN 107294323A CN 201710591977 A CN201710591977 A CN 201710591977A CN 107294323 A CN107294323 A CN 107294323A
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- rotor
- permanent magnet
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- phase
- phase windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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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
- H02P25/098—Arrangements for reducing torque ripple
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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
- H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
A kind of axial permanent magnetic auxiliary reluctance motor and its control method, belong to DC motor technology field；Motor includes：Two groups of stators, two group rotors, the permanent magnet for being fixed on rotating shaft center, permanent magnet both sides are paperwrapped in the wedge-shaped slot of rotating shaft, two group rotors are fixed on wedge-shaped slot, two groups of stators are respectively arranged at outside two group rotors, two groups of stator exteriors fix casing, there are 9 salient poles on every group of stator, there are 6 salient poles on per group rotor, two groups of stators are divided into A, B, C three-phase；This method includes：A phase stator tooth center lines and rotor tooth center line is set to differ 22.5 ° of startup motors；A phase windings are powered, when rotor turns over 20 °, the power-off of A phase windings, and B phase windings are powered, when rotor turns over 20 ° again, and B phase windings power-off, C phase windings are powered, circulated successively；Present invention decreases torque pulsation；Permanent magnet is added, increases its stability, motor performance is improved；The magnetic property of motor is enhanced, rotary inertia reduces.
Description
Technical field
The invention belongs to DC motor technology field, and in particular to a kind of axial permanent magnetic auxiliary reluctance motor and its controlling party
Method.
Background technology
Switched reluctance machines are most common magneto-resistance motors, because its firm in structure, simple, cost is low, starting torque
Greatly, speed adjusting performance is good, strong fault-tolerant ability and the features such as flexible control mode, has obtained increasingly extensive in industrial circle
Using.With the development and application of material, Power Electronic Technique, digital control technology, control theory and sensor technology, opening
Close on the basis of reluctance motor, double salient-pole electric machine turns into a kind of new special motor grown up in recent years, its control technology
It has been reached its maturity that, at present, led in track traffic, lathe, Aero-Space, automobile, household electrical appliance and industrial stokehold etc.
Domain is widely used.However, switched reluctance machines have its weak point：The angle changed from energy, switching magnetic-resistance electricity
Machine only obtains the utilization rate of half, and power density is small, and instantaneous torque pulsation is larger and there is a certain degree of leakage field and causes it
Operational efficiency is low.
The content of the invention
The deficiency existed for above-mentioned prior art, the present invention provides a kind of axial permanent magnetic auxiliary reluctance motor and its control
Method, enables motor to improve output torque using new angle control mode, reduces torque pulsation, and adds permanent magnet,
Specific volume power is improved, the use scope of motor is extended.
Technical scheme：
A kind of axial permanent magnetic aids in reluctance motor, including two groups of stators, two group rotors, rotating shaft, wedge-shaped slot, permanent magnet and machine
Shell；The permanent magnet is patty, and coaxial and be fixed on that rotating shaft is central with rotating shaft, permanent magnet both sides, which are provided with, is paperwrapped in rotating shaft table
The wedge-shaped slot in face, the wedge-shaped slot is made of permeability magnetic material and fixed with rotating shaft；The stator and rotor are by silicon steel sheet stack
Pressure is formed, and two group rotor is separately fixed on the wedge-shaped slot of permanent magnet both sides, and two groups of stators are respectively arranged at two groups and turned
It is sub outside, and air gap is separated between stator and rotor, a pair of rotor groups are formed, permanent magnet both sides rotor group is symmetrical, and with
There is certain space between permanent magnet, the casing is arranged at two groups of stator exteriors, and is fixed with two groups of stators.
Having on every group of stator on 9 salient poles i.e. stator tooth, every group rotor has 6 salient poles i.e. rotor tooth, each
Winding is wound with stator tooth；Stator polar arc is 20 °, and rotor pole arc is 15 °；Two groups of stators be divided into the symmetrical A of permanent magnet, B,
C three-phases, wherein, the monosymmetric A phase windings of permanent magnet are connected into a phase, and the monosymmetric B phase windings of permanent magnet are connected into one
Phase, the monosymmetric C phase windings of permanent magnet are connected into a phase.
The axial permanent magnetic aids in the control method of reluctance motor, comprises the following steps：
Step 1：During electric motor starting, A phase stator tooth center lines and rotor tooth center line is set to differ 22.5 °；
Step 2：A phase windings are powered, and produce tangential pulling force rotor driven rotation；
Step 3：When rotor turns over 20 °, A phase windings power-off, B phase windings are powered, and produce tangential pulling force rotor driven rotation
Turn；
Step 4：When rotor turns over 20 ° again, B phase windings power-off, C phase windings are powered；
Step 5：When rotor turns over 20 ° again, the power-off of C phase windings, repeat step 2, motor is continuously run.
Angle of flow of the motor per phase is 20 °, realizes continuous commutation, reduces torque pulsation, improves the stabilization of motor
Property.
Beneficial effect：A kind of axial permanent magnetic of the present invention aids in reluctance motor and its control method compared with prior art,
With following advantage：
(1) torque pulsation is reduced using salient pole type stator and rotor sructure and new conduction mode；
Permanent magnet is added between (2) two groups of rotors, increases its stability, motor performance is improved；
(3) rotor is formed using silicon steel plate stacking, and the wedge-shaped slot that useful permeability magnetic material is made in rotating shaft, enhancing
The magnetic property of motor, reduces rotary inertia.
Brief description of the drawings
Fig. 1 aids in reluctance motor left view for the axial permanent magnetic of one embodiment of the present invention；
Fig. 2 aids in reluctance motor three dimensional structure diagram for the axial permanent magnetic of one embodiment of the present invention；
Fig. 3 aids in reluctance motor front view for the axial permanent magnetic of one embodiment of the present invention；
Fig. 4 aids in reluctance motor partial schematic diagram for the axial permanent magnetic of one embodiment of the present invention；
Fig. 5 aids in reluctance motor start position figure for the axial permanent magnetic of one embodiment of the present invention；
Wherein, 1- stators, 2- rotors, 3- rotating shafts, 4- wedge-shaped slots, 5- permanent magnets, 6- casings, 7- stator tooths, 7A-A phases are fixed
Sub- tooth, 7B-B phase stator tooths, 8,8a, 8b- rotor tooth, 9- windings；
Fig. 6 aids in reluctance motor control method flow chart for the axial permanent magnetic of one embodiment of the present invention；
Fig. 7 aids in the reluctance motor Startup time location drawing for the axial permanent magnetic of one embodiment of the present invention；
Fig. 8 aids in the reluctance motor commutation moment location drawing for the axial permanent magnetic of one embodiment of the present invention.
Embodiment
One embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
As Figure 1-3, a kind of axial permanent magnetic auxiliary reluctance motor of present embodiment, including two groups of stators 1, two groups turn
Son 2, rotating shaft 3, wedge-shaped slot 4, permanent magnet 5 and casing 6；The permanent magnet 5 is patty, coaxial and be fixed on rotating shaft 3 with rotating shaft 3
Center, the both sides of permanent magnet 5 are provided with the wedge-shaped slot 4 being paperwrapped in outside rotating shaft, the wedge-shaped slot 4 be made of permeability magnetic material and with
Rotating shaft is fixed；In present embodiment, as shown in figure 4, wedge-shaped slot 4, in round table-like, stretches out in cylinder at permanent magnet
Shape.
The stator 1 and rotor 2 are formed by silicon steel plate stacking, and two group rotor 2 is fixed on the both sides rotating shaft of permanent magnet 5
Wedge-shaped slot circular cylinder shaped portion on, two groups of stators 1 are respectively arranged at outside two group rotors 2, and between stator 1 and rotor 2
Air gap is separated with, a pair of rotor groups are formed, permanent magnet both sides rotor group is symmetrical, is wedge shape between rotor group and permanent magnet 5
The round table-like part of groove 4, the casing 6 is arranged at two groups of stator exteriors, and is fixed with two groups of stators 1.
Having on every group of stator on 9 salient poles i.e. stator tooth 7, every group rotor has 6 salient poles i.e. rotor tooth 8, often
Winding 9 is wound with individual stator tooth；Stator polar arc is 20 °, and rotor pole arc is 15 °；As shown in figure 5, two groups of stators be divided into forever
Symmetrical A, B, C three-phase of magnet, three adjacent stator tooths of stator pack are followed successively by A phase, B phase, C phase, wherein, permanent magnet both sides pair
The A phase Exciting Windings for Transverse Differential Protection of title is connected into a phase, and the monosymmetric B phases Exciting Windings for Transverse Differential Protection of permanent magnet is connected into a phase, permanent magnet both sides pair
The C phase Exciting Windings for Transverse Differential Protection of title is connected into a phase.
Permanent magnet sets up constant axial magnetic field, and motor two ends form N poles and S poles, by controling winding turn-on sequence, made
Motor rotates.Two ends winding, which is powered, to be formed the axial magnetic flux same with permanent magnet and is conducted through rotating shaft, and from permanent magnet side, rotor is worn
Stator is crossed, permanent magnet opposite side stator is passed to by motor case, returning to rotating shaft by rotor forms closed magnetic circuit.Magnetic field of permanent magnet
Be powered the magnetic field superposition to be formed with winding, increases power density, increase motor torque, the speed adjustable range for expanding motor.
As shown in fig. 6, the axial permanent magnetic aids in the control method of reluctance motor, comprise the following steps：
Step 1：The stator polar arc of motor is 20 °, and rotor pole arc is 15 °, during electric motor starting, is turned to obtain larger start
Square and faster toggle speed, as shown in fig. 7, differing 22.5 ° of position with A phases stator tooth 7A center lines and rotor tooth 8a center lines
It is set to position during starting；
Step 2：A phase windings are powered, and produce tangential pulling force rotor driven rotation；
Step 3：When rotor turns over 20 °, as shown in figure 8, rotor tooth 8a overlapping 15 ° with A phase stator tooths 7A, and rotor
Tooth 8a center lines differ 32.5 ° with B phase stator tooth 7B center lines, and rotor tooth 8b center lines are differed with B phase stator tooth 7B center lines
27.5 °, A phase windings power off and realize afterflow, and declining area in inductance does not have electric current generation, it is therefore prevented that the generation of negative torque, B phases
Winding is powered, and produces tangential pulling force rotor driven rotation；
Step 4：When rotor turns over 20 °, B phase windings power-off, C phase windings are powered；
Step 5：When rotor turns over 20 °, the power-off of C phase windings, repeat step 2, motor is continuously run.
Angle of flow of the motor per phase is 20 °, realizes continuous commutation, reduces torque pulsation, improves the stabilization of motor
Property.
Claims (6)
1. a kind of axial permanent magnetic aids in reluctance motor, it is characterised in that including：
Two groups of stators, two group rotors, rotating shaft, permanent magnet and casing；The permanent magnet is fixed on rotating shaft center, two group rotor
Be separately fixed in the rotating shaft of permanent magnet both sides, two groups of stators are respectively arranged at outside two group rotors, and stator and rotor it
Between be separated with air gap, form a pair of rotor groups, the casing is arranged at two groups of stator exteriors, and is fixed with two groups of stators；
Having on every group of stator on 9 salient poles i.e. stator tooth, every group rotor has 6 salient poles i.e. rotor tooth, each stator
Winding is wound with tooth；Two groups of stators are divided into A, B, C three-phase symmetrical relative to permanent magnet, wherein, permanent magnet both sides pair
The A phase windings of title are connected into a phase, and the monosymmetric B phase windings of permanent magnet are connected into a phase, the monosymmetric C phases of permanent magnet around
Group is connected into a phase.
2. axial permanent magnetic according to claim 1 aids in reluctance motor, it is characterised in that the stator and rotor are by silicon
Steel disc is overrided to form.
3. axial permanent magnetic according to claim 1 aids in reluctance motor, it is characterised in that permanent magnet both sides rotor
Group is symmetrical arranged relative to permanent magnet, and has between permanent magnet certain space.
4. axial permanent magnetic according to claim 1 aids in reluctance motor, it is characterised in that the stator polar arc is 20 °, is turned
Sub- polar arc is 15 °.
5. axial permanent magnetic according to claim 1 aids in reluctance motor, it is characterised in that the permanent magnet is patty,
Rotating shaft center is coaxially fixed on rotating shaft, permanent magnet both sides are provided with the wedge-shaped slot for being paperwrapped in rotating shaft surface, two group rotor
It is separately fixed on the wedge-shaped slot of permanent magnet both sides, the wedge-shaped slot is made of permeability magnetic material.
6. axial permanent magnetic described in claim 1 aids in the control method of reluctance motor, it is characterised in that comprise the following steps：
Step 1：During electric motor starting, A phase stator tooth center lines and rotor tooth center line is set to differ 22.5 °；
Step 2：A phase windings are powered, and produce tangential pulling force rotor driven rotation；
Step 3：When rotor turns over 20 °, A phase windings power-off, B phase windings are powered, and rotor continues in the presence of tangential pulling force
Rotation；
Step 4：When rotor turns over 20 ° again, B phase windings power-off, C phase windings are powered；
Step 5：When rotor turns over 20 ° again, the power-off of C phase windings, repeat step 2, motor is continuously run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591977.9A CN107294323A (en) | 2017-07-19 | 2017-07-19 | A kind of axial permanent magnetic auxiliary reluctance motor and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591977.9A CN107294323A (en) | 2017-07-19 | 2017-07-19 | A kind of axial permanent magnetic auxiliary reluctance motor and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN107294323A true CN107294323A (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710591977.9A Pending CN107294323A (en) | 2017-07-19 | 2017-07-19 | A kind of axial permanent magnetic auxiliary reluctance motor and its control method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB494606A (en) * | 1936-07-22 | 1938-10-28 | British Thomson Houston Co Ltd | Improvements in and relating to alternating-current dynamo electric machines |
| CN102027658A (en) * | 2008-05-14 | 2011-04-20 | 三菱电机株式会社 | Magnetic inductor type rotary machine, and fluid transfer device using the rotary machine |
| CN104124798A (en) * | 2013-04-25 | 2014-10-29 | 江苏东元电机电控有限公司 | Anti-shake type motor rotor |
| CN204559343U (en) * | 2015-03-27 | 2015-08-12 | 沈阳工业大学 | Novel salient pole type rotor is brushless coil excitation direct current machine |
| US20160094113A1 (en) * | 2011-05-06 | 2016-03-31 | Qm Power, Inc. | Motor Topology with Exchangeable Components to Form Different Classes of Motors |
| CN207150377U (en) * | 2017-07-19 | 2018-03-27 | 沈阳工业大学 | A kind of axial permanent magnetic aids in reluctance motor |
-
2017
- 2017-07-19 CN CN201710591977.9A patent/CN107294323A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB494606A (en) * | 1936-07-22 | 1938-10-28 | British Thomson Houston Co Ltd | Improvements in and relating to alternating-current dynamo electric machines |
| CN102027658A (en) * | 2008-05-14 | 2011-04-20 | 三菱电机株式会社 | Magnetic inductor type rotary machine, and fluid transfer device using the rotary machine |
| US20160094113A1 (en) * | 2011-05-06 | 2016-03-31 | Qm Power, Inc. | Motor Topology with Exchangeable Components to Form Different Classes of Motors |
| CN104124798A (en) * | 2013-04-25 | 2014-10-29 | 江苏东元电机电控有限公司 | Anti-shake type motor rotor |
| CN204559343U (en) * | 2015-03-27 | 2015-08-12 | 沈阳工业大学 | Novel salient pole type rotor is brushless coil excitation direct current machine |
| CN207150377U (en) * | 2017-07-19 | 2018-03-27 | 沈阳工业大学 | A kind of axial permanent magnetic aids in reluctance motor |
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