CN107947418A - A kind of double speed multi-winding generator - Google Patents
A kind of double speed multi-winding generator Download PDFInfo
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- CN107947418A CN107947418A CN201711213181.6A CN201711213181A CN107947418A CN 107947418 A CN107947418 A CN 107947418A CN 201711213181 A CN201711213181 A CN 201711213181A CN 107947418 A CN107947418 A CN 107947418A
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- winding
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- rotor
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- 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
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/225—Detecting coils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Synchronous Machinery (AREA)
Abstract
A kind of double speed multi-winding generator, including casing, rotor and stator, wherein rotor and stator are mounted in casing, and rotor is connected with prime mover；Mutually independent high speed winding, low speed winding and the winding that tests the speed are provided with stator slot.The voltage change of present invention generator when setting the correspondence winding of two groups of different rotating speeds to solve the problems, such as that prime mover speed changes on stator, by setting the winding that tests the speed, realize real-time generator speed monitoring, compared with usually to solve the problems, such as the scheme of generator double speed, the solution of the present invention does not increase generator quantity, do not use speed probe, reduce the volume and weight of system, improve the reliability of system, and, by the left and right sides that high speed winding and low speed winding are respectively arranged to stator slot, solves the problems, such as the armature superposition of multi-winding generator, improve the performance of generator, with fabulous popularizing value.
Description
Technical field
The present invention relates to a kind of double speed multi-winding generator.
Background technology
The current common generator of institute is when being worked, since rotor is connected with the output shaft of prime mover, rotor
Rotating speed is directly influenced by prime mover, and prime mover rotation speed change scope is big in some equipment, is broadly divided into the slow-speed of revolution and high rotating speed
Two kinds.According to electromagnetic induction principle, induced electromotive force is directly proportional to the rotating speed of conductor cutting magnetic line, and therefore, when slow-speed of revolution is sent out
The voltage of motor output is low, and the voltage that generator exports during high rotating speed is high.Power generation is produced due to the rotation speed change of prime mover
The voltage change of machine, is extremely disadvantageous, when serious for the equipment being powered using generator, it would be possible to straight
Connect and cause equipment scrapping.So in electrical generator fields, how to solve the voltage change that two kinds of velocities of rotation of generator are brought and ask
Topic, it has also become one of key technology of lifting generator performance at present.
One of currently used solution, two generators of connecting in equipment, two generators using it is single around
Group form, one is low-speed generator, and another is high tacho generator, is respectively that electrical equipment is powered, it is maximum
The shortcomings that be to need two generators, add the volume and weight of system, be unsuitable to apply to limit volume and weight more
Equipment on.Another solution, arranges double winding, double winding is respectively according to the slow-speed of revolution on same generator
It is individually designed with the progress of high rotating speed, it is adapted to two kinds of situations of high rotating speed and the slow-speed of revolution respectively, in addition installation turns on generator
Which set winding fast sensor, for gathering tach signal, judge to connect, its defect is to need extra increase according to tach signal
Speed probe is used for the collection of tach signal, adds the complexity of system, reduces reliability, also, traditional two
Winding generator is covered, since double winding carries out simple superposition, armature-reaction is overlapped mutually, greatly reduces the property of generator
Energy.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of double speed multi-winding generator, double speed Multiple coil power generation
Machine can export burning voltage under two kinds of rotating speeds to differ greatly.
The present invention is achieved by the following technical programs.
A kind of double speed multi-winding generator provided by the invention, including casing, rotor and stator, wherein rotor and stator
It is mounted in casing, rotor is connected with prime mover；Stator is along the circumferential direction evenly distributed with 42 stator slots, and three are provided with stator slot
Cover mutually independent winding.
Three sets of mutually independent windings, are respectively high speed winding, low speed winding and the winding that tests the speed.
The left and right that the high speed winding is respectively arranged at stator slot with low speed winding is half of, and the component outline of high speed winding is located at
The left side of stator slot, the component outline of low speed winding are located at the right side of stator slot.
14 blocks of magnet steel are along the circumferential direction evenly distributed with the rotor, the magnetizing direction of magnet steel is radially, N poles replaces with S poles
Arrangement.
The high speed winding is three-phase alternating current winding, using every 2 circle of element, 8 and around the mode for totally 28 circles of being often in series
Coiling.
The low speed winding is three-phase alternating current winding, using every 2 circle of element, 8 and around the mode for totally 28 circles of being often in series
Coiling.
The winding that tests the speed is one-way communication winding, and direct coiling is carried out by the way of every 1 circle of element.
The beneficial effects of the present invention are：By the implementation of the present invention, by setting two groups of different rotating speeds on stator
The voltage change of generator when corresponding winding is to solve the problems, such as that prime mover speed changes, by setting the winding that tests the speed, solves
Common generator needs to install the problem of speed probe carries out rotating speed collection additional, passes through the winding that tests the speed and can be achieved to send out in real time
Motor speed monitors, and is easy to implement and the winding of two kinds of rotating speeds corresponding in generator is switched in real time, with usually to
Solve the problems, such as that the scheme of generator double speed is compared, the solution of the present invention does not increase generator quantity, does not use speed probe, subtracts
The small volume and weight of system, improves the reliability of system, also, by the way that high speed winding and low speed winding are set respectively
In the left and right sides of stator slot, solve the problems, such as the armature superposition of multi-winding generator, improve the performance of generator, there is pole
Good popularizing value.
Brief description of the drawings
Fig. 1 is the composition structural schematic block diagram of the present invention；
Fig. 2 is the high speed winding connection figure of the present invention；
Fig. 3 is the low speed winding connection figure of the present invention；
Fig. 4 is the winding connection figure that tests the speed of the present invention.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
As shown in Figure 1, a kind of double speed multi-winding generator, including casing, rotor and stator, wherein rotor and stator are equal
It is installed in casing, rotor is connected with prime mover；Stator is along the circumferential direction evenly distributed with 42 stator slots, and three sets are provided with stator slot
Mutually independent winding.
Three sets of mutually independent windings, are respectively high speed winding, low speed winding and the winding that tests the speed.
The left and right that the high speed winding is respectively arranged at stator slot with low speed winding is half of, and the component outline of high speed winding is located at
The left side of stator slot, the component outline of low speed winding are located at the right side of stator slot.
14 blocks of magnet steel are along the circumferential direction evenly distributed with the rotor, the magnetizing direction of magnet steel is radially, N poles replaces with S poles
Arrangement.
When do not have in armature winding electric current by when, by the main field approximation that rotor upper magnetic pole is formed by sinusoidal rule point
Cloth.When have in winding electric current by when, winding can produce an armature field in itself, and armature field is distorted main field,
Half is strengthened, and half weakens, and load is bigger, and the distortion of field is stronger caused by armature-reaction.The simple superposition of winding can cause
Armature-reaction caused by often covering winding is overlapped mutually, and is exponentially amplified the harmful effect of armature-reaction, is prevented generator from just
Often work.
On space structure, it is respectively to account for stator slot that two-way is undertaken the high speed winding of high power load and low speed Winding Design
Left and right is half of, and the component outline of high speed winding is located at the left side of groove, and the component outline of low speed winding is located at the right side of groove, makes between them
Due to space structure is completely independent and mutual inductance effect be minimized, avoid armature-reaction and be overlapped mutually.Undertake low-power load
The winding that tests the speed since its output voltage and power are much smaller than another two-way, whole stator slot is occupied in spatial distribution,
Its electric current is set to be ahead of 90 degree of electromotive force, armature field and main field into 90 degree in electrical angle, the electromotive force that armature field produces
It is identical with the electromotive force direction that main field produces, play the role of strengthening main field electromotive force.
When it is implemented, the thickness of rotor upper magnetic steel can also be increased to eliminate armature-reaction, magnet thickness is increased
Best results when 19%.It is used to eliminate armature-reaction further, it is also possible to increase flux density degree of saturation on stator tooth, when flux density is satisfied
With best results during degree increase 6%.
High speed winding carries out coiling according to the winding diagram of Fig. 2, and the high speed winding is three-phase alternating current winding, uses every element
2 circles, 8 and around the mode coiling for totally 28 circles of being often in series.
Low speed winding carries out coiling according to the winding diagram of Fig. 3, and the low speed winding is three-phase alternating current winding, uses every element
2 circles, 8 and around the mode coiling for totally 28 circles of being often in series.
The winding that tests the speed described in winding of testing the speed is one-way communication winding, and direct coiling is carried out by the way of every 1 circle of element.
During work, prime mover drives the rotor of generator to be rotated, and the winding that tests the speed set on stator is external in real time
Corresponding speed signal is sent, when rotating speed is high speed, high speed winding is connected and generates electricity, when rotating speed is low speed, connect low
Fast winding generates electricity.
By the implementation of the present invention, prime mover speed is solved by setting the correspondence winding of two groups of different rotating speeds on stator
The voltage change problem of generator when degree changes, by setting the winding that tests the speed, solving common generator needs installation to turn
Fast sensor carries out the problem of rotating speed collection, and real-time generator speed, which can be achieved, by the winding that tests the speed monitors, and is easy to implement
The winding of two kinds of rotating speeds corresponding in generator is switched in real time, with usually solving the problems, such as the side of generator double speed
Case is compared, and the solution of the present invention does not increase generator quantity, does not use speed probe, reduces the volume and weight of system,
The reliability of system is improved, also, by the way that high speed winding and low speed winding to be respectively arranged to the left and right sides of stator slot, solution
Determined multi-winding generator armature superposition problem, improve the performance of generator, there is fabulous popularizing value.
Claims (7)
- A kind of 1. double speed multi-winding generator, it is characterised in that：It is equal including casing, rotor and stator, wherein rotor and stator It is installed in casing, rotor is connected with prime mover；Stator is along the circumferential direction evenly distributed with 42 stator slots, and three sets are provided with stator slot Mutually independent winding.
- 2. double speed multi-winding generator as claimed in claim 1, it is characterised in that：Three sets of mutually independent windings, point Wei not high speed winding, low speed winding and the winding that tests the speed.
- 3. double speed multi-winding generator as claimed in claim 2, it is characterised in that：The high speed winding is distinguished with low speed winding Left and right one side of something of stator slot is arranged at, the component outline of high speed winding is located at the left side of stator slot, and the component outline of low speed winding is located at The right side of stator slot.
- 4. double speed multi-winding generator as claimed in claim 1, it is characterised in that：It is along the circumferential direction uniformly distributed on the rotor 14 blocks of magnet steel, the magnetizing direction of magnet steel is radially, N poles is alternately arranged with S poles.
- 5. double speed multi-winding generator as claimed in claim 2, it is characterised in that：The high speed winding for three-phase alternating current around Group, using every 2 circle of element, 8 and around the mode coiling for totally 28 circles of being often in series.
- 6. double speed multi-winding generator as claimed in claim 2, it is characterised in that：The low speed winding for three-phase alternating current around Group, using every 2 circle of element, 8 and around the mode coiling for totally 28 circles of being often in series.
- 7. double speed multi-winding generator as claimed in claim 2, it is characterised in that：It is described test the speed winding for one-way communication around Group, direct coiling is carried out by the way of every 1 circle of element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213181.6A CN107947418A (en) | 2017-11-28 | 2017-11-28 | A kind of double speed multi-winding generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213181.6A CN107947418A (en) | 2017-11-28 | 2017-11-28 | A kind of double speed multi-winding generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947418A true CN107947418A (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711213181.6A Pending CN107947418A (en) | 2017-11-28 | 2017-11-28 | A kind of double speed multi-winding generator |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442441Y (en) * | 2000-09-26 | 2001-08-08 | 吴加林 | Multiple winding generator |
| CN101860155A (en) * | 2010-07-09 | 2010-10-13 | 福建福安闽东亚南电机有限公司 | Permanent magnet digital frequency conversion single-phase double-voltage generator |
| CN106787338A (en) * | 2016-12-30 | 2017-05-31 | 哈尔滨工业大学 | Around component shell type polyphase machine and its control method |
-
2017
- 2017-11-28 CN CN201711213181.6A patent/CN107947418A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442441Y (en) * | 2000-09-26 | 2001-08-08 | 吴加林 | Multiple winding generator |
| CN101860155A (en) * | 2010-07-09 | 2010-10-13 | 福建福安闽东亚南电机有限公司 | Permanent magnet digital frequency conversion single-phase double-voltage generator |
| CN106787338A (en) * | 2016-12-30 | 2017-05-31 | 哈尔滨工业大学 | Around component shell type polyphase machine and its control method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180420 |