CN108923608A - A kind of switched reluctance machines with position detection coil - Google Patents
A kind of switched reluctance machines with position detection coil Download PDFInfo
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- CN108923608A CN108923608A CN201810915470.9A CN201810915470A CN108923608A CN 108923608 A CN108923608 A CN 108923608A CN 201810915470 A CN201810915470 A CN 201810915470A CN 108923608 A CN108923608 A CN 108923608A
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- armature
- stator
- detection
- type structure
- rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil
-
- 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
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
-
- 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
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
- H02K3/20—Windings for salient poles for auxiliary purposes, e.g. damping or commutating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- 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
The invention discloses a kind of switched reluctance machines with position detection coil.The motor stator is made of armature stator and detection stator, and the two is mutually isolated；By 4 c-type structure compositions, each c-type structure has 2 teeth for armature stator and detection stator；It is wound with 1 armature coil on each tooth of armature stator c-type structure, detects and is wound with 1 detection coil on each tooth of stator c-type structure；Armature magnetic circuits and detection magnetic circuit are short magnetic circuit structural, and the two mutually decouples, and detection winding inductance is not influenced by armature winding electric current, i.e., is not influenced by motor degree of saturation, and rotor-position detection accuracy is high；In addition, armature magnetic circuits and detection magnetic circuit are short magnetic circuit.Electric machine iron core loss of the present invention is small, high-efficient；The arrangement of axial series need to be only used, three monophase machine rotor mutual dislocation certain angles can construct that starting ability is strong, core loss is small, carry the three-phase switch reluctance machine of position detecting function.
Description
Technical field
The present invention relates to a kind of switched reluctance machines with position detection coil, belong to the switched reluctance machines skill of electric machinery
Art field.
Background technique
Switched reluctance machines stator and rotor are double-salient-pole structure, rotor without winding and permanent magnet, have structure simple rigid,
Low cost, the features such as high temperature resistant and high-speed adaptability are strong are led in military and civilians such as aerospace, Precision Machining, electric cars
Domain is widely used.
In the applications such as reliability requirement height or bad environments, position sensor detection technique is switching magnetic-resistance electricity
One technical bottleneck of machine.For improve switched reluctance motor system reliability, frequently with position-sensor-free technology.Numerous
In position-sensor-free technology, based on position detection coil is a kind of important solution in switched reluctance machines field without position technique
Certainly scheme, the technology are and to carry out rotor real time position differentiation by obtaining detection winding inductance.
Currently, the position detection coil in conventional structure switched reluctance machines, is influenced seriously, detection error by motor saturation
Greatly.For this purpose, the application proposes a kind of switched reluctance machines of novel belt position detection coil, since stator is isolated form structure,
Armature winding magnetic circuit and detection magnetic circuit are mutually isolated, and detection winding inductance is not influenced substantially by armature winding electric current, and then solve
Motor of having determined is saturated the influence to position detection.
Summary of the invention
The present invention for overcome the deficiencies in the prior art, proposes a kind of switched reluctance machines with position detection coil.Institute
Stating motor is single-phase duty motor, and stator is made of armature stator and detection stator, and the two is mutually isolated；Armature magnetic circuits
It is short magnetic circuit structural with detection magnetic circuit, the two mutually decouples；Therefore, detection winding inductance is not influenced by armature winding electric current,
It is not influenced by motor degree of saturation.In addition, armature magnetic circuits and detection magnetic circuit are short magnetic circuit, single-phase switch magnetic resistance of the present invention
Electric machine iron core loss is small, high-efficient；Based on the present invention, the arrangement of axial series, three monophase machine rotors need to be only used
Mutual dislocation certain angle, can construct that starting ability is strong, core loss is small, carry the threephase switch magnetic of position detecting function
Hinder motor.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of switched reluctance machines with position detection coil, the motor are single-phase duty motor, including armature stator, inspection
Measure son, rotor, armature coil and detection coil；It is characterized in that,
For the armature stator by 4 c-type structure compositions, each c-type structure includes 2 teeth；The detection stator is by 4 c-type knots
Structure composition, each c-type structure include 2 teeth；The c-type structure of the armature stator is bigger than the c-type structure of the detection stator；
The rotor is salient-pole structure, the number of teeth 12；It is evenly arranged on 12 tooth circumference of the rotor, tooth differs 30 ° with tooth；
The c-type structure of the c-type structure of the armature stator and the detection stator, is alternately evenly arranged on circumference；The armature
The c-type structure of stator differs 45 ° with the center of the c-type structure of the detection stator, and 4 c-type structures of the armature stator are empty
Between upper 90 ° of difference, differ 90 ° on 4 c-type structure spaces of the detection stator；The rotor is arranged in armature stator and inspection
In measurement；
2 teeth of each c-type structure of the armature stator spatially differ 30 °；Each c-type structure of the detection stator
2 outer peripheral spacing of tooth are equal to the facewidth of 1 tooth of rotor；
It is wound with 1 armature coil on 1 tooth of each c-type structure of the armature stator, totally 8 armature coils；The detection
It is wound with 1 detection coil on 1 tooth of each c-type structure of stator, totally 8 detection coils；
8 armature coils are connected as 1 armature winding using serial or parallel connection mode；8 detection coil series connection
It is connected as 1 detection winding；The armature winding conducting generates torque, to realize the motor operating；The detection winding inspection
Survey the position signal of rotor.
Beneficial effects of the present invention：The invention proposes a kind of switched reluctance machines with position detection coil, using this
The technical solution of invention can reach following technical effect：
（1）The real time position of rotor can be obtained by detection coil；
（2）Detection coil inductance is not influenced by motor saturation, and detection accuracy is high；
（3）Armature magnetic circuits and detection magnetic circuit are magnetic structure, and mutually isolated no coupling, core loss are small；
（4）The arrangement of axial series need to be only used, the rotor mutual dislocation certain angle of three motors of the present invention can structure
It produces that starting ability is strong, core loss is small, carries the three-phase switch reluctance machine of position detecting function.
Detailed description of the invention
Fig. 1 is the two-dimensional structure figure of motor of the present invention.
Fig. 2 is rotor of the present invention in distribution diagram of magnetic line of force when being misaligned position.
Fig. 3 is distribution diagram of magnetic line of force when rotor of the present invention is in aligned position.
The result of finite element of armature winding inductance when Fig. 4 is different armature supplys of the invention.
The result of finite element of detection winding inductance when Fig. 5 is different armature supplys of the invention.
Description of symbols：Fig. 1 is into Fig. 5, and 1 is armature stator, and 2 be detection stator, and 3 rotors, 4 be armature coil, and 5 are
Detection coil, 6 be the magnetic line of force that rotor is in that armature winding electric current when being misaligned position generates, and 7 be that rotor is in and is misaligned
The magnetic line of force that detection winding electric current when position generates, 8 be the magnetic that armature winding electric current when rotor is in aligned position generates
The line of force, 9 be the magnetic line of force that detection winding electric current when rotor is in aligned position generates, and 10 be armature supplyi m Electricity when=1A
Pivot winding inductance curve, 11 be armature supplyi m Armature winding inductance curve when=10A, 12 be armature supplyi m Electricity when=50A
Pivot winding inductance curve, 13 be armature supplyi m Detection winding inductance curve when=1A, 14 be armature supplyi m Inspection when=10A
Winding inductance curve is surveyed, 15 be armature supplyi m Detection winding inductance curve when=50A.
Specific embodiment
With reference to the accompanying drawing, a kind of technical solution of the switched reluctance machines with position detection coil of the present invention is carried out detailed
It describes in detail bright：
As shown in Figure 1, being the two-dimensional structure figure of motor of the present invention, wherein 1 is armature stator, and 2 be detection stator, and 3 rotors, 4 are
Armature coil, 5 be detection coil.
The switched reluctance machines with position detection coil are single-phase duty motor, including armature stator, detection are determined
Son, rotor, armature coil and detection coil；
The armature stator is by 4 c-type structure compositions, and the detection stator is by 4 c-type structure compositions；
The c-type structure of the armature stator is bigger than the c-type structure of the detection stator；
Each c-type structure of the armature stator includes 2 teeth；Each c-type structure of the detection stator includes 2 teeth；
The rotor is salient-pole structure, the number of teeth 12；It is evenly arranged on 12 tooth circumference of the rotor, tooth differs 30 ° with tooth；
The c-type structure of the armature stator circumferentially replaces with the c-type structure of the detection stator to be evenly arranged；The armature
The c-type structure of stator differs 45 ° with the center of the c-type structure of the detection stator, and 4 c-type structures of the armature stator are empty
Between upper 90 ° of difference, differ 90 ° on 4 c-type structure spaces of the detection stator；The rotor is arranged in armature stator and inspection
In measurement；
2 teeth of each c-type structure of the armature stator spatially differ 30 °；Each c-type structure of the detection stator
2 outer peripheral spacing of tooth are equal to the facewidth of 1 tooth of rotor；
It is wound with 1 armature coil on 1 tooth of each c-type structure of the armature stator, totally 8 armature coils；The detection
It is wound with 1 detection coil on 1 tooth of each c-type structure of stator, totally 8 detection coils；
8 armature coils are connected as 1 armature winding using serial or parallel connection mode；8 detection coil series connection
For 1 detection winding；The armature winding conducting generates torque, to realize the motor operating；The detection winding only conduct
Position signal detection uses, and the torque of generation is negligible.
When using the arrangement of axial series, 3 monophase machine rotor mutual dislocation certain angles of the invention, just
A kind of three-phase switch reluctance machine can be constructed, the motor is strong with starting ability, core loss is small, and included position detection function
Energy.The armature coil of each monophase machine is connected as a phase winding, and the detection coil of each monophase machine is connected as phase detection
Winding, three-phase windings are connected in turn can produce continuous torque, to realize motor operation；Three-phase detection winding is passed through high-frequency electrical
Signal is flowed, can be obtained the real time position of the rotor of each monophase machine, and then obtain turning on and off for threephase armature winding
Angle.
It as shown in Figures 2 and 3, is rotor of the present invention respectively in magnetic line of force when being misaligned position and aligned position
Distribution map.Wherein, 6 be the magnetic line of force of the rotor in armature winding electric current generation when being misaligned position, and 7 be that rotor is in not right
The magnetic line of force that detection winding electric current when neat position generates, 8 be armature winding electric current generation when rotor is in aligned position
The magnetic line of force, 9 be the magnetic line of force that detection winding electric current when rotor is in aligned position generates.
It defines when rotor tooth is overlapped with tooth center line with armature stator tooth center to be misaligned position, i.e. rotor-position is zero
Degree；It is aligned position when rotor tooth center line is overlapped with armature stator tooth center line, i.e., rotor position angle is 15 °.
C-type structure, rotor and air gap closure of the armature magnetic circuits that armature supply generates only through each armature stator, are short magnetic
Line structure, and the armature magnetic circuits of each c-type structure of the armature stator are also mutually isolated；
C-type structure, rotor and air gap of the detection magnetic circuit that detection winding electric current generates only through each detection stator are closed, and are also short
Magnetic structure, and the detection magnetic circuit of each c-type structure of the detection stator is also mutually isolated；In addition, detection magnetic circuit and armature
Magnetic circuit is equally mutually isolated, no coupling.
As shown in Figure 4 and Figure 5, the armature winding inductance and detection winding inductance when being armature supply of the invention different respectively
Result of finite element.Wherein, 10 be armature supplyi m Armature winding inductance curve when=1A, 11 be armature supplyi m =10A
When armature winding inductance curve, 12 be armature supplyi m Armature winding inductance curve when=50A, 13 be armature supplyi m =1A
When detection winding inductance curve, 14 be armature supplyi m Detection winding inductance curve when=10A, 15 be armature supplyi m =50A
When detection winding inductance curve.
Result of finite element shows that a rotor cycle angle is 30 °, and detection winding inductance and armature winding inductance have
Identical changing rule.
By Motor Optimizing Design, can make in detection winding inductance first transition（0~15°）, detection winding inductance is with rotor
Position angle is incremented by, in inductance last transition（15°~30°）, detection winding inductance successively decreases with rotor position angle, therefore passes through differentiation
Detection winding inductance value can obtain the position angle of rotor in real time, to provide position letter for turning on and off for armature winding
Number.
Fig. 4 is shown, works as armature supplyi m When=10A, armature winding inductance starts to reduce, and illustrates that motor has entered saturation shape
State；Work as armature supplyi m When=50A, armature winding inductance is very small, illustrates that motor is seriously saturated.
Fig. 5 shows that when armature supply is different value, detection winding inductance does not change substantially, illustrates detection winding electricity
Sense is not influenced by armature supply, that is, is based on technical solution of the present invention, and detection winding inductance is not influenced by motor saturation, detection essence
Du Genggao.
In conclusion a kind of switched reluctance machines with detection coil of the present invention, armature stator and detection stator mutually every
From, armature magnetic circuits and detection magnetic circuit also mutually isolated decoupling, and then detection winding inductance is not influenced by armature winding electric current, i.e.,
It is not influenced by motor degree of saturation, rotor-position real-time detection precision is high；In addition, armature magnetic circuits and detection magnetic circuit are short magnetic
Road, electric machine iron core loss of the present invention is small, and current utilization rate is high, high-efficient.
For those skilled in the art, it is excellent that association's others can be easy to according to the above implementation type
Point and deformation.Therefore, the invention is not limited to above-mentioned specific example, as just example to a kind of form of the invention into
Detailed, the exemplary explanation of row.In the range of without departing substantially from present inventive concept, those of ordinary skill in the art are according to above-mentioned specific
Example should be included in scope of the presently claimed invention and its wait homotypes by the obtained technical solution of various equivalent replacements
Within enclosing.
Claims (1)
1. a kind of switched reluctance machines with position detection coil, the motor is single-phase duty motor, including armature stator,
Detect stator, rotor, armature coil and detection coil；It is characterized in that：
For the armature stator by 4 c-type structure compositions, each c-type structure includes 2 teeth；The detection stator is by 4 c-type knots
Structure composition, each c-type structure include 2 teeth；The c-type structure of the armature stator is bigger than the c-type structure of the detection stator；
The rotor is salient-pole structure, the number of teeth 12；It is evenly arranged on 12 tooth circumference of the rotor, tooth differs 30 ° with tooth；
The c-type structure of the c-type structure of the armature stator and the detection stator, is alternately evenly arranged on circumference；The armature
The c-type structure of stator differs 45 ° with the center of the c-type structure of the detection stator, and 4 c-type structures of the armature stator are empty
Between upper 90 ° of difference, differ 90 ° on 4 c-type structure spaces of the detection stator；The rotor is arranged in armature stator and inspection
In measurement；
2 teeth of each c-type structure of the armature stator spatially differ 30 °；Each c-type structure of the detection stator
2 outer peripheral spacing of tooth are equal to the facewidth of 1 tooth of rotor；
It is wound with 1 armature coil on 1 tooth of each c-type structure of the armature stator, totally 8 armature coils；The detection
It is wound with 1 detection coil on 1 tooth of each c-type structure of stator, totally 8 detection coils；
8 armature coils are connected as 1 armature winding using serial or parallel connection mode；8 detection coil series connection
It is connected as 1 detection winding；The armature winding conducting generates torque, to realize the motor operating；The detection winding inspection
Survey the position signal of rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915470.9A CN108923608B (en) | 2018-08-13 | 2018-08-13 | A kind of switched reluctance machines with position detection coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915470.9A CN108923608B (en) | 2018-08-13 | 2018-08-13 | A kind of switched reluctance machines with position detection coil |
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| Publication Number | Publication Date |
|---|---|
| CN108923608A true CN108923608A (en) | 2018-11-30 |
| CN108923608B CN108923608B (en) | 2019-07-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810915470.9A Active CN108923608B (en) | 2018-08-13 | 2018-08-13 | A kind of switched reluctance machines with position detection coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115001220A (en) * | 2022-06-30 | 2022-09-02 | 天津工业大学 | Planar inductance coil for detecting position of motor rotor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450396A (en) * | 1980-09-23 | 1984-05-22 | Massachusetts Institute Of Technology | Electrically controlled synchronous machine |
| CN1921273A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Position detecting circuit for brushless direct current dynamo |
| CN102170215A (en) * | 2011-04-25 | 2011-08-31 | 浙江工业大学 | Efficient reluctance type multi-functional motor with axial and radial three-dimensional mixed magnetic circuit in axial split phases |
| CN202364092U (en) * | 2011-09-27 | 2012-08-01 | 浙江博望科技发展有限公司 | Servo motor and servo control system |
| CN103997177A (en) * | 2014-06-11 | 2014-08-20 | 北京理工大学 | Single-phase outer rotor switch reluctance generator with U-shaped stator teeth |
| CN106374644A (en) * | 2016-09-09 | 2017-02-01 | 中国石油大学(华东) | Novel static sealed high-temperature superconductive excitation magnetic flux switching motor |
-
2018
- 2018-08-13 CN CN201810915470.9A patent/CN108923608B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450396A (en) * | 1980-09-23 | 1984-05-22 | Massachusetts Institute Of Technology | Electrically controlled synchronous machine |
| CN1921273A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Position detecting circuit for brushless direct current dynamo |
| CN102170215A (en) * | 2011-04-25 | 2011-08-31 | 浙江工业大学 | Efficient reluctance type multi-functional motor with axial and radial three-dimensional mixed magnetic circuit in axial split phases |
| CN202364092U (en) * | 2011-09-27 | 2012-08-01 | 浙江博望科技发展有限公司 | Servo motor and servo control system |
| CN103997177A (en) * | 2014-06-11 | 2014-08-20 | 北京理工大学 | Single-phase outer rotor switch reluctance generator with U-shaped stator teeth |
| CN106374644A (en) * | 2016-09-09 | 2017-02-01 | 中国石油大学(华东) | Novel static sealed high-temperature superconductive excitation magnetic flux switching motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115001220A (en) * | 2022-06-30 | 2022-09-02 | 天津工业大学 | Planar inductance coil for detecting position of motor rotor |
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| CN108923608B (en) | 2019-07-26 |
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