CN106787560A - Armature divergence type exchanges mixed excitation electric machine - Google Patents
Armature divergence type exchanges mixed excitation electric machine Download PDFInfo
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- CN106787560A CN106787560A CN201710040582.XA CN201710040582A CN106787560A CN 106787560 A CN106787560 A CN 106787560A CN 201710040582 A CN201710040582 A CN 201710040582A CN 106787560 A CN106787560 A CN 106787560A
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- armature
- winding
- stator
- electric machine
- armature winding
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- 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
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
- H02K21/028—Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention provides armature divergence type exchange mixed excitation electric machine, including stator and rotor, two sets of number of phases identical polyphase windings, respectively armature winding and Exciting Windings for Transverse Differential Protection are provided with the stator；The armature winding is with Exciting Windings for Transverse Differential Protection and exchanges winding, respectively by alternating current independent control；The armature winding and the Exciting Windings for Transverse Differential Protection are circumferentially arranged on the circumference of whole stator respectively, are intervally arranged in the stator slot of the stator with the armature winding coil and excitation winding pole coil of phase.The present invention is by way of separating armature winding, a set of winding is also served as into AC excitation winding and redundancy armature winding is used, improve the fault-tolerant ability of motor, when there is irreversible demagnetization in motor electrical excitation coil fault or permanent magnetism, there is provided certain magnetic field makes motor continuous service or mitigates the influence of failure；And in armature winding failure or when needing increase power, make the operation of Hot Spare armature winding.
Description
Technical field
The present invention relates to a kind of armature divergence type exchange mixed excitation electric machine structure, belong to design of electrical motor correlation technique neck
Domain.
Background technology
In application fields such as electric automobile, wind-power electricity generation, Aero-Space and national defense and military, to motor high reliability and appearance
Wrong service ability has rigors.Current electric machine structure uses a set of armature winding mostly, when armature winding produces failure
When, it is possible to cause motor operation to fail, trigger accident.On the other hand, when the electrical excitation coil for producing air gap main field occurs
When failure or permanent magnet occur irreversible demagnetization, motor may cannot normally run.
And from for motor low speed high torque and high speed output-constant operation the two important performance demands, often using permanent magnetism
Brushless electric machine, but be often difficult to be satisfied by requiring while taking into account these two aspects performance, therefore be typically only capable to take trade-off optimization side
Case.The general permanent magnetic brushless flux control mode for using mainly includes at present：Produce d-axis armature anti-by vector controlled
Answer the indirect adjustable magnetic in magnetic field and adjustable magnetic is directly carried out by direct-flow magnet exciting coil.The invention " one of Nanjing Aero-Space University Cai Chen etc.
Plant durface mounted permanent magnet synchronous generator field weakening control method "（Patent No. CN201610004364.6）, China space industry the 6th
A kind of invention " wide range speed control servo permagnetic synchronous motor weak magnetic control system " of one or the eight small rocs of research institute Zhao etc.（The patent No.
CN201520998708.0）Using the scheme for producing d-axis armature reacting field to realize indirect adjustable magnetic.The program is although can be with
Realize that magnetic field is adjusted indirectly, but when armature winding occurs hardware fault or current Control Algorithm software fault, may
Cause adjustable magnetic to fail, or even trigger system crash." mixing of induced excitation formula is encouraged for the invention of the pretty grades of Nanjing Aero-Space University Zhu Shu
Magnetic brushless synchronous machine "（Patent No. CN201310084876.4）" one kind is based on all-wave for the invention of grade evergreen with Shandong University Zhu
The composite excitation three-phase brushless synchronous generator of induced excitation "（Patent No. CN201620668936.6）Stator is respectively adopted single-phase
The composite excitation scheme of direct current and single phase ac Exciting Windings for Transverse Differential Protection, although have the Exciting Windings for Transverse Differential Protection of independent control, but cannot realize superfluous
Exciting Windings for Transverse Differential Protection in the function of remaining armature winding, i.e. such scheme can only play excitation function, and cannot realize armature winding work(
Energy.To sum up, existing disclosed flux control scheme does not possess armature winding redundancy work(while composite excitation function is realized,
Can, there is limitation.
The content of the invention
Technical problem：The purpose of the present invention is to propose to a kind of armature divergence type exchange mixed excitation electric machine structure so that from
The polyphase ac Exciting Windings for Transverse Differential Protection that armature is isolated, as redundancy armature winding, is normally transported when without adjustable magnetic with main armature winding
OK, used as AC excitation winding when needing and increasing magnetic and weak magnetic.Occur when the electrical excitation coil of air gap main field is produced
When failure or permanent magnet occur irreversible demagnetization, the polyphase windings can be as Exciting Windings for Transverse Differential Protection, there is provided maintain encouraging for motor operation
Magnetic magnetic field；And in main armature winding failure, the set winding runs as Hot Spare armature winding, fault-tolerant fortune under failure is realized
OK.It can be seen that, there are four kinds of functions in the polyphase windings, can flexibly be used according to operating mode at least.
Technical scheme：
Armature divergence type exchanges mixed excitation electric machine, including stator and rotor, two sets of numbers of phases is provided with the stator identical
Polyphase windings, respectively armature winding and Exciting Windings for Transverse Differential Protection；The armature winding is with Exciting Windings for Transverse Differential Protection and exchanges winding, leads to respectively
Cross alternating current independent control；The armature winding and the Exciting Windings for Transverse Differential Protection are circumferentially arranged on the circumference of whole stator respectively,
It is intervally arranged in the stator slot of the stator with the armature winding coil and excitation winding pole coil of phase.
The stator and rotor are set to external stator/internal rotor or outer rotor/inner stator according to different application scenarios.
The rotor is using permanent magnet excitation, Wound-rotor type winding or the not only salient-pole structure without permanent magnet but also without winding.
The motor main field be radially, axially, any combination magnetic field in horizontal or above-mentioned three kinds of directions.
The permanent magnetism in the main field source, electrical excitation coil are located on the stator or the rotor.
The permanent magnet material that the motor is used is the combination of ferrite, SmCo, neodymium iron boron or above-mentioned three kinds of permanent-magnet materials.
Every phase line number of turns of the armature winding and the Exciting Windings for Transverse Differential Protection, coil turn and parallel branch number are set to identical
Or it is different.
The armature winding and the Exciting Windings for Transverse Differential Protection use same power supply or different electrical power.
The armature winding and the Exciting Windings for Transverse Differential Protection are using centralized winding or distributed winding.
The motor is used for pure generating, the operation of pure electronic or generating-electric assembling.
Beneficial effect：Because the present invention is by way of separating armature winding, a set of winding is also served as into AC excitation winding
It is used with redundancy armature winding.By the air-gap field of exciting current adjustment motor, can both increase magnetic to produce larger starting
Torque, again can weak magnetic realize wide speed regulating range.On the other hand the fault-tolerant ability of motor is improve, in the event of motor electrical excitation coil
When there is irreversible demagnetization in barrier or permanent magnetism, there is provided certain magnetic field makes motor continuous service or mitigates the influence of failure；And in armature
During winding failure or when needing increase power, make the operation of Hot Spare armature winding.The design can apply pure electro-magnetic motor,
On pure magneto and mixed excitation electric machine, there is versatility in design.Excitation and armature coil are separately controlled, are reduced
The difficulty of control.
Brief description of the drawings
Fig. 1 is that armature divergence type exchanges mixed excitation electric machine structure chart（By taking external stator/internal rotor as an example）；Wherein have：It is fixed
Son 1, armature winding 1.1, Exciting Windings for Transverse Differential Protection 1.2, rotor 2, air gap 3.The coil of armature winding 1.1 and the coil of Exciting Windings for Transverse Differential Protection 1.2 are fixed
It is intervally arranged on son 1.
Fig. 2 is a specific armature divergence type exchange mixed excitation electric machine body composition figure；Wherein have：Stator 1, armature around
Group 1.1, Exciting Windings for Transverse Differential Protection 1.2, stator core 1.3, rotor 2, rotor tooth 2.1, permanent magnet 2.2, armature spindle 2.3, air gap 3.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Armature divergence type exchange mixed excitation electric machine structure of the invention is divided into stator and rotor from topological structure, according to
Different application scenarios can flexibly be set to external stator/internal rotor or outer rotor/inner stator.
This specific embodiment is by taking external stator/internal rotor as an example：
Two sets of number of phases identical polyphase windings, respectively armature winding 1.1 and Exciting Windings for Transverse Differential Protection 1.2 are set on stator 1.Armature winding
1.1 and Exciting Windings for Transverse Differential Protection 1.2 be circumferentially arranged in the circumference of whole stator 1 respectively, with the armature winding coil and Exciting Windings for Transverse Differential Protection line of phase
Circle is intervally arranged in stator slot.Armature winding 1.1 is all to exchange winding with Exciting Windings for Transverse Differential Protection 1.2, electrically independent by exchanging respectively
Control.Exciting Windings for Transverse Differential Protection 1.2 can be used as AC excitation as needed, can also be made exchange armature and be used.
The flexible structure of rotor 2 is changeable, can be using permanent magnet excitation, Wound-rotor type winding or not only without permanent magnet but also without the convex of winding
Pole structure.
Motor main field can be radially, axially, any combination magnetic field in horizontal or above-mentioned three kinds of directions.Main field source
Permanent magnetism, electrical excitation coil can be located on stator 1 or rotor 2.The permanent magnet material that motor is used can be ferrite, SmCo, neodymium iron
The combination of boron or above-mentioned three kinds of permanent-magnet materials.
Every phase line number of turns of armature winding 1.1 and Exciting Windings for Transverse Differential Protection 1.2, coil turn, parallel branch number can distinguish it is identical or
It is different.Armature winding 1.1 and Exciting Windings for Transverse Differential Protection 1.2 can be used same power supply or different electrical power, using centralized winding or can divide
Cloth winding.The motor can make pure generating, the operation of pure electronic or generating-electric assembling.
As shown in Fig. 2 armature divergence type exchange mixed excitation electric machine structural electromotor body of the invention includes stator 1, turn
Sub 2 two parts.Stator 1 and rotor 2 all use salient-pole structure.Stator 1 using centralized AC excitation winding 1.2 and armature around
Group 1.1, each two rotor tooth 2.1 is provided with permanent magnet 2.2 on rotor 2, has air gap 3 in the middle of stator 1 and rotor 2.
Stator 1 uses 24 grooves, and threephase armature winding 1.1 and three-phase AC excitation winding 1.2 are spaced around on the stator teeth, often
Mutually it is made up of 4 coils respectively.
Rotor 2 is 8 pairs of poles（16 poles）Structure, each pair pole is by two rotor tooths 2.1 and the permanent magnet 2.2 of middle cutting orientation magnetizing
Constitute.The magnetizing direction of the permanent magnet 2.2 that each pair extremely goes up is identical, that is, be all clockwise or counterclockwise.
Permanent magnet 2.2 can be made of ferrite, SmCo or NdFeB material, and stator core 1.3 and rotor chi 2.1 are by silicon steel
Piece punching is stacked.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. armature divergence type exchanges mixed excitation electric machine, including stator and rotor, it is characterised in that：It is provided with the stator
Two sets of number of phases identical polyphase windings, respectively armature winding and Exciting Windings for Transverse Differential Protection；The armature winding and Exciting Windings for Transverse Differential Protection are friendship
Stream winding, respectively by alternating current independent control；The armature winding and the Exciting Windings for Transverse Differential Protection are circumferentially arranged in entirely respectively
On the circumference of stator, with the armature winding coil and excitation winding pole coil of phase in the stator slot of the stator row of interval
Cloth.
2. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The stator and rotor
External stator/internal rotor or outer rotor/inner stator are set to according to different application scenarios.
3. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The rotor is using forever
Magnetism excitation, Wound-rotor type winding or the not only salient-pole structure without permanent magnet but also without winding.
4. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The motor main field
For radially, axially, any combination magnetic field in horizontal or above-mentioned three kinds of directions.
5. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The main field source
Permanent magnetism, electrical excitation coil is located on the stator or the rotor.
6. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：What the motor was used
Permanent magnet material is the combination of ferrite, SmCo, neodymium iron boron or above-mentioned three kinds of permanent-magnet materials.
7. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The armature winding and
Every phase line number of turns of the Exciting Windings for Transverse Differential Protection, coil turn and parallel branch number are set to identical or different.
8. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The armature winding and
The Exciting Windings for Transverse Differential Protection uses same power supply or different electrical power.
9. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The armature winding and
The Exciting Windings for Transverse Differential Protection is using centralized winding or distributed winding.
10. armature divergence type according to claim 1 exchanges mixed excitation electric machine, it is characterised in that：The motor is used for
Pure generating, the operation of pure electronic or generating-electric assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710040582.XA CN106787560A (en) | 2017-01-20 | 2017-01-20 | Armature divergence type exchanges mixed excitation electric machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710040582.XA CN106787560A (en) | 2017-01-20 | 2017-01-20 | Armature divergence type exchanges mixed excitation electric machine |
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| CN106787560A true CN106787560A (en) | 2017-05-31 |
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| CN201710040582.XA Pending CN106787560A (en) | 2017-01-20 | 2017-01-20 | Armature divergence type exchanges mixed excitation electric machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035271A (en) * | 2009-09-30 | 2011-04-27 | 上海新世纪机器人有限公司 | Double redundancy winding motor |
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN103248158A (en) * | 2013-05-10 | 2013-08-14 | 东南大学 | Six-phase flux switching type permanent magnet motor |
| CN104184230A (en) * | 2014-09-12 | 2014-12-03 | 东南大学 | High-reliability mixed excitation fault-tolerant motor system |
| CN104319917A (en) * | 2014-10-30 | 2015-01-28 | 东南大学 | Redundant half-tooth-winding magnetic flux switching motor |
| CN105553150A (en) * | 2015-12-23 | 2016-05-04 | 中国船舶重工集团公司第七一〇研究所 | Quad-redundant fault-tolerant motor winding of underwater unmanned vehicle |
| CN105790456A (en) * | 2016-04-29 | 2016-07-20 | 南京航空航天大学 | Three-phase mixed excitation magnetic flux switching motor structure |
-
2017
- 2017-01-20 CN CN201710040582.XA patent/CN106787560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035271A (en) * | 2009-09-30 | 2011-04-27 | 上海新世纪机器人有限公司 | Double redundancy winding motor |
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN103248158A (en) * | 2013-05-10 | 2013-08-14 | 东南大学 | Six-phase flux switching type permanent magnet motor |
| CN104184230A (en) * | 2014-09-12 | 2014-12-03 | 东南大学 | High-reliability mixed excitation fault-tolerant motor system |
| CN104319917A (en) * | 2014-10-30 | 2015-01-28 | 东南大学 | Redundant half-tooth-winding magnetic flux switching motor |
| CN105553150A (en) * | 2015-12-23 | 2016-05-04 | 中国船舶重工集团公司第七一〇研究所 | Quad-redundant fault-tolerant motor winding of underwater unmanned vehicle |
| CN105790456A (en) * | 2016-04-29 | 2016-07-20 | 南京航空航天大学 | Three-phase mixed excitation magnetic flux switching motor structure |
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| PB01 | Publication | ||
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Application publication date: 20170531 |