CN109245370A - A kind of four phase double-fed electric excitation synchronous motors - Google Patents
A kind of four phase double-fed electric excitation synchronous motors Download PDFInfo
- Publication number
- CN109245370A CN109245370A CN201811087790.6A CN201811087790A CN109245370A CN 109245370 A CN109245370 A CN 109245370A CN 201811087790 A CN201811087790 A CN 201811087790A CN 109245370 A CN109245370 A CN 109245370A
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- Prior art keywords
- excitation
- winding
- double
- stator
- rotor
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- 230000005284 excitation Effects 0.000 title claims abstract description 67
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 61
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000035611 feeding Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- 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
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- 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
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
The present invention relates to a kind of four phase double-fed electric excitation synchronous motors, the stator and rotor being arranged including same shaft, the stator is equipped with 4N stator poles, the rotor is equipped with 5N rotor pole, N is positive integer, a set of armature winding and set of excitation winding are wound in each stator poles, the excitation winding and armature winding are concentratred winding.Compared with prior art, the double-salient-pole structure that the present invention uses is simpler, can accomplish that electrical angle shared by EMF waveform is 180 ° under suitable rotor pole embrace, four phase windings export electric energy to load simultaneously, and fault-tolerant ability is stronger.The structure of central excitation is used simultaneously, and location torque is small, while not having unbalanced electromagnetic force, improves the reliability of motor operation.
Description
Technical field
The present invention relates to technical field of new energy power generation, more particularly, to a kind of four phase double-fed electric excitation synchronous motors.
Background technique
Electric excitation biconvex electrode electric machine develops on the basis of switched reluctance machines, remains switch reluctance machine rotor
Structure is simple, advantage low in cost and convenient adjustable magnetic.Electric excitation biconvex electrode electric machine feature specific as follows: one, direct current excitation,
There is no permanent magnet, thus it is low in cost, because without permanent magnet the problem of there is no demagnetizations；Two, do not have on rotor armature around
Group is also without excitation winding, and rotor is formed by silicon steel plate stacking, and without coil and magnet steel, structure is simple, securely；Three, electricity is encouraged
All armature winding and excitation winding of magnetic double salient-pole electric machine are all on stator, are hardly damaged, while being easy to radiate；Four,
Exciting current, that is, adjustable output voltage is adjusted, so that output voltage is not changed with load and is changed, also just eliminates frequency converter, it can
To use diode uncontrollable rectifier circuit, circuit is significantly simplified in this way, the reliability of double salient-pole electric machine is improved, reduces
Cost.
But the excitation of current double-salient-pole electro-magnetic motor is generally adopted by distribution excitation, excitation winding is wound on more
In the stator poles of a double salient-pole electric machine, there are the asymmetric problems of phase magnetic circuit, will lead to armature winding loss and rectifier bridge
The problem of loss is unevenly distributed also increases the motor rectifier output voltage pulsation of motor at the same time.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide four phase duplex feedings of one kind to encourage
Magnetic-synchro motor.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of four phase double-fed electric excitation synchronous motors, including stator and rotor that same shaft is arranged, the stator includes
4N stator poles, the rotor include 5N rotor pole, and N is positive integer, be wound in each stator poles a set of armature winding and
Set of excitation winding, the excitation winding and armature winding are concentratred winding.
Further, same phase armature winding uses the coiling of differential concatenation mode in stator poles, and excitation winding is each
It is connected by the way of differential concatenation in stator poles.
Further, it is additionally provided with fairing, the anode of the armature winding connects load, negative terminal connection rectification dress
The anode of middle rectifying tube is set, the cathode of rectifying tube connects load.
It further, further include shell made of non-magnet material.
Further, preferably 2 N.
Further, the stator core of the stator extremely silicon steel sheet.
Further, the electric excitation biconvex electrode electric machine can be used as generator or motor running.
Compared with prior art, the invention has the following advantages that
1, it is uniformly distributed excitation winding in each stator poles of the invention, generates symmetrical phase magnetic circuit, solves tradition
The problem of distribution magnetic excitation circuit is asymmetric and unbalanced electromagnetic force.And tradition distribution excitation biconvex electrode electric machine is maintained,
Adjustable magnetic is convenient, low in cost, the simple and reliable advantage of rotor structure.
2, present invention employs concentrate electrical excitation, be wound in multiple stator poles by original excitation winding be transformed into excitation around
Group is uniformly wound in each stator poles of motor, to solve the problems, such as that magnetic circuit is asymmetric, while also being got rid of not
Balanced electromagnetic power, comparison discovery central excitation have good torque characteristics, improve torque density, reduce rectification output
Mains ripple.
3, the present invention improves increase output power using the structure of four phase central excitations and the structure of more rotor poles, improves
The power density of motor, while the structure of central excitation makes the reduction of the harmonic content of magnetic linkage and back-emf, waveform is being more just
String has certain fault-tolerance.
4, winding technique of the invention is simple, is easy to radiate, be hardly damaged, and extends the service life of motor.
To sum up, compared with existing four phases double-fed electric excitation synchronous motor, the double-salient-pole structure which uses is simpler
It is single, it can accomplish that electrical angle shared by EMF waveform is 180 ° under suitable rotor pole embrace, four phase windings are simultaneously
Electric energy is exported to load, fault-tolerant ability is stronger.The structure of central excitation is used simultaneously, and location torque is small, while without imbalance
Electromagnetic force improves the reliability of motor operation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram for showing specific winding construction；
Fig. 3 is rectification circuit figure of the invention；
Fig. 4 is four phase winding magnetic linkage analogous diagrams；
Fig. 5 is four phase winding counter electromotive force analogous diagrams；
Fig. 6 is rectifier output voltage analogous diagram.
Appended drawing reference: 1, stator, 2, rotor, 3, excitation winding, 4, armature winding, 5, stator poles, 6, rotor pole, 7, outer
Shell.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, present embodiments providing a kind of four phase structure double-fed electrical excitation of 4N/5N (N is positive integer) synchronizes electricity
Machine, the numerical value of N take 2, including shell 7, shaft made of non-magnet material, stator 1, rotor 2, excitation winding 3, armature winding 4
And fairing.Stator 1 and rotor 2 are arranged with shaft, and stator 1 is equipped with 8 stator poles 5, and rotor 2 is equipped with 10 rotor poles
6, a set of armature winding 4 and set of excitation winding 3 are wound in each stator poles 5.Same phase armature winding 4 is adopted in stator poles 5
With differential concatenation mode coiling, excitation winding 3 is connected by the way of differential concatenation in each stator poles 5.3 He of excitation winding
Armature winding 4 is concentratred winding.Stator poles 5 are 1 iron core of stator of silicon steel sheet.The electric excitation biconvex electrode electric machine can be used as sending out
Motor can also motor running, used as generator in the present embodiment.
As shown in Fig. 2, the anode (A, B, C, D) of armature winding 4 directly leads out the negative terminal as this electricity generation system, armature
The negative terminal (W, X, Y, Z) of winding 4 connects the anode of rectifying tube in fairing, and then, the line that all rectifying tube negative terminals are drawn is connect
Together as the anode of this electricity generation system.
Excitation mode uses central excitation, and relative to traditional distribution excitation, the winding technique of central excitation is in double-salient-pole
In each stator poles 5 of motor.It is uniformly distributed excitation winding 3 in each stator poles 5 of the motor, generates symmetrical phase magnetic
Road solves the problems, such as traditional distribution magnetic excitation circuit asymmetry and unbalanced electromagnetic force.And it maintains tradition distribution to encourage
Magnetic double salient-pole electric machine, adjustable magnetic is convenient, low in cost, the advantage simple and reliable for structure of rotor 2.Power of motor density in the present invention
Height, the small and phase current of rectifier output voltage pulsation are symmetrical.
Specifically, generating main field inside motor when being passed through exciting current in excitation winding 3.In each stator poles 5
There are a set of armature winding 4 and set of excitation winding 3.The anode (A, B, C, D) of armature winding 4 is directly led out as this power generation
The negative terminal of system, the negative terminal (W, X, Y, Z) of winding connect the anode of rectifying tube, and the line that all rectifying tube negative terminals are drawn is connected together
Anode as this electricity generation system.Excitation mode uses central excitation, relative to traditional distribution excitation, the winding of central excitation
It is wound in each stator poles 5 of double salient-pole electric machine, therefore with the presence of four phase armature winding, it is A, B, C, D respectively.The coiling side of A
Formula is as shown in Fig. 2, the winding mode of other four phases is similar with A.The cathode of this four phase is W, X, Y, Z, the negative terminal of four phases respectively
Connect the anode of rectifying tube.The cathode of all rectifying tubes is connected to a bit, is drawn through conducting wire, the anode as double-salient-pole electricity generation system
Access load.
As shown in figure 3, the present embodiment uses half-bridge uncontrollable rectifier circuit, the anode of A, B, C, D phase armature winding is connected to
A bit, the cathode as double-salient-pole electricity generation system is drawn through conducting wire, the negative terminal (W, X, Y, Z) of A, B, C, D phase armature winding is respectively
Anode between the anode of diode D1, D2, D3, D4 and the cathode of D8, D7, D6, D5, as double-salient-pole electricity generation system.
The initial position of motor is as illustrated in fig. 1 and 2, and rectification circuit is as shown in figure 3, using full-bridge rectification structure, according to electricity
The connection type of pivot winding and diode, it is known that tetra- phase winding of A, B, C, D slides into rotor pole and rotor pole skids off all to load
Power supply.A, tetra- phase magnetic linkage of B, C, D as shown in figure 4, tetra- opposite potential of A, B, C, D as shown in figure 5, its magnetic linkage waveform sine compared with
Good, harmonic content is less, and back-emf is also in this way, therefore easily facilitating control.Fig. 6 is unfiltered rectifier output voltage wave
Shape is pulsed smaller.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of four phase double-fed electric excitation synchronous motors, the stator and rotor being arranged including same shaft, which is characterized in that described
Stator includes 4N stator poles, includes 5N rotor pole on the rotor, N is positive integer, is wound in each stator poles a set of
Armature winding and set of excitation winding, the excitation winding and armature winding are concentratred winding.
2. four phases central excitation double-fed electric excitation synchronous motor according to claim 1, which is characterized in that same phase armature
Winding uses the coiling of differential concatenation mode in stator poles, and excitation winding is connected by the way of differential concatenation in each stator poles
It connects.
3. four phases central excitation double-fed electric excitation synchronous motor according to claim 1, which is characterized in that be additionally provided with rectification
Device, the anode of the armature winding connect load, and negative terminal connects the anode of rectifying tube in fairing, the yin of rectifying tube
Pole connection load.
4. four phases central excitation double-fed electric excitation synchronous motor according to claim 1, which is characterized in that further include non-lead
Shell made of magnetic material.
5. four phases central excitation double-fed electric excitation synchronous motor according to claim 1, which is characterized in that N preferably 2.
6. any four phase central excitation double-fed electric excitation synchronous motors according to claim 1~5, which is characterized in that institute
State the stator core of stator extremely silicon steel sheet.
7. any four phase central excitation double-fed electric excitation synchronous motors according to claim 1~5, which is characterized in that institute
Stating electric excitation biconvex electrode electric machine can be used as generator or motor running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087790.6A CN109245370A (en) | 2018-09-18 | 2018-09-18 | A kind of four phase double-fed electric excitation synchronous motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087790.6A CN109245370A (en) | 2018-09-18 | 2018-09-18 | A kind of four phase double-fed electric excitation synchronous motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109245370A true CN109245370A (en) | 2019-01-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811087790.6A Pending CN109245370A (en) | 2018-09-18 | 2018-09-18 | A kind of four phase double-fed electric excitation synchronous motors |
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| CN (1) | CN109245370A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311487A (en) * | 2019-07-31 | 2019-10-08 | 上海电力大学 | Four phase piecemeal rotor pole electric excitation biconvex electrode electric machines |
| CN110323853A (en) * | 2019-07-31 | 2019-10-11 | 上海电力大学 | The five fault-tolerant electric excitation biconvex electrode electric machines of phase 5N/4N Polar armature excitation distributing |
| CN110417137A (en) * | 2019-07-31 | 2019-11-05 | 上海电力大学 | The five isolated fault-tolerant electric excitation biconvex electrode electric machines of phase 5N/4N Polar armature |
| CN110417136A (en) * | 2019-07-31 | 2019-11-05 | 上海电力大学 | Five phase 5N/4N Polar armatures and the fault-tolerant electric excitation biconvex electrode electric machine of excitation winding |
| CN113489203A (en) * | 2021-07-01 | 2021-10-08 | 南京航空航天大学 | Four-phase electro-magnetic doubly-salient motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130564A (en) * | 2011-03-16 | 2011-07-20 | 南京航空航天大学 | Four-phase doubly salient motor |
| US20140055069A1 (en) * | 2011-03-30 | 2014-02-27 | Shanshan Dai | Electric excitation permanent magnet switch, electric excitation permanent magnet switch reluctance motor and electric excitation method |
| CN203911602U (en) * | 2014-04-28 | 2014-10-29 | 南京航空航天大学 | Magnetic circuit complementary type stator duplex feeding brushless AC synchronous motor |
| CN104779760A (en) * | 2015-03-25 | 2015-07-15 | 南京航空航天大学 | Low-torque pulse electrically-excited double-salient brushless DC (Direct Current) motor and control system thereof |
| CN105305753A (en) * | 2015-11-04 | 2016-02-03 | 南京航空航天大学 | Three-phase (6/5)k doubly salient motor structure |
| CN105576929A (en) * | 2015-12-25 | 2016-05-11 | 华中科技大学 | AC brushless electro-magnetic starter generator employing concentrated windings |
| CN208971270U (en) * | 2018-09-18 | 2019-06-11 | 上海电力学院 | A kind of four phase double-fed electric excitation synchronous motors |
-
2018
- 2018-09-18 CN CN201811087790.6A patent/CN109245370A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130564A (en) * | 2011-03-16 | 2011-07-20 | 南京航空航天大学 | Four-phase doubly salient motor |
| US20140055069A1 (en) * | 2011-03-30 | 2014-02-27 | Shanshan Dai | Electric excitation permanent magnet switch, electric excitation permanent magnet switch reluctance motor and electric excitation method |
| CN203911602U (en) * | 2014-04-28 | 2014-10-29 | 南京航空航天大学 | Magnetic circuit complementary type stator duplex feeding brushless AC synchronous motor |
| CN104779760A (en) * | 2015-03-25 | 2015-07-15 | 南京航空航天大学 | Low-torque pulse electrically-excited double-salient brushless DC (Direct Current) motor and control system thereof |
| CN105305753A (en) * | 2015-11-04 | 2016-02-03 | 南京航空航天大学 | Three-phase (6/5)k doubly salient motor structure |
| CN105576929A (en) * | 2015-12-25 | 2016-05-11 | 华中科技大学 | AC brushless electro-magnetic starter generator employing concentrated windings |
| CN208971270U (en) * | 2018-09-18 | 2019-06-11 | 上海电力学院 | A kind of four phase double-fed electric excitation synchronous motors |
Non-Patent Citations (2)
| Title |
|---|
| 史立伟等: "多相电励磁双凸极发电机的极数和极弧系数研究", 中国电机工程学报, vol. 35, no. 7, 15 April 2015 (2015-04-15), pages 1783 * |
| 孙林楠等: "定子分布励磁双凸极无刷直流发电机电磁特性研究", 中国电机工程学报, vol. 37, no. 21, 5 November 2017 (2017-11-05), pages 6218 - 6222 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311487A (en) * | 2019-07-31 | 2019-10-08 | 上海电力大学 | Four phase piecemeal rotor pole electric excitation biconvex electrode electric machines |
| CN110323853A (en) * | 2019-07-31 | 2019-10-11 | 上海电力大学 | The five fault-tolerant electric excitation biconvex electrode electric machines of phase 5N/4N Polar armature excitation distributing |
| CN110417137A (en) * | 2019-07-31 | 2019-11-05 | 上海电力大学 | The five isolated fault-tolerant electric excitation biconvex electrode electric machines of phase 5N/4N Polar armature |
| CN110417136A (en) * | 2019-07-31 | 2019-11-05 | 上海电力大学 | Five phase 5N/4N Polar armatures and the fault-tolerant electric excitation biconvex electrode electric machine of excitation winding |
| CN113489203A (en) * | 2021-07-01 | 2021-10-08 | 南京航空航天大学 | Four-phase electro-magnetic doubly-salient motor |
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