CN104158372B - Shunt field combined magnetic pole type synchronous motor - Google Patents
Shunt field combined magnetic pole type synchronous motor Download PDFInfo
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- CN104158372B CN104158372B CN201410335182.8A CN201410335182A CN104158372B CN 104158372 B CN104158372 B CN 104158372B CN 201410335182 A CN201410335182 A CN 201410335182A CN 104158372 B CN104158372 B CN 104158372B
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Abstract
The invention discloses a kind of shunt field combined magnetic pole type synchronous motor, the stator including casing, being arranged in casing and rotor.One end vertically, electrical excitation N pole on rotor is horn-like extension, and collection is together in annular electrical excitation N pole pole shoe；Electrical excitation S pole vertically with one end be bottleneck shape shrink extend, collection together in annular electrical excitation S pole pole shoe.The excitation support embedding Exciting Windings for Transverse Differential Protection it is provided with between annular N pole pole shoe and annular S pole pole shoe.The axial magnetic circuit that adjustable magnetic uses is through annular N pole pole shoe, excitation support, annular S pole pole shoe, and without end cap, casing.Permanent magnetic circuit of the present invention and electrical excitation magnetic circuit are separate, neither parallel circuits, are not series circuit, turn avoid the risk of demagnetization simultaneously.The present invention uses brushless structure, and reliability is high.It addition, use direct current adjustable magnetic mode, control simple, bidirectional excitation can be realized, the air-gap field adjustable range width of electrical excitation magnetic pole.
Description
Technical field
The present invention relates to a kind of magneto, particularly to a kind of shunt field combined magnetic pole type synchronous motor, belong to synchronous motor
Field.
Background technology
Along with raising and the decline of price of permanent magnetic material performance, permanent-magnet material use in motor is increasingly extensive.Magneto
Having power density high, volume is little, lightweight, and efficiency is high, non-brushing, advantages of simple structure and simple.Countries in the world all put into
Substantial amounts of human and material resources, occur in that the magneto of a lot of new structure.The main pole air-gap field of magneto cannot regulate or
Difficulty is relatively big, but magneto is when for generator, and load causes armature supply change or rotating speed to change and can make
The terminal voltage of generator changes therewith, therefore for ensureing voltage stabilization, needs to regulate magnetic field；When motor, should at some
By occasion, it is desirable to wide-range-timing, use invariable power mode to carry out speed governing in high regime, now need to weaken magnetic field.
In this context, occur in that a kind of New-type electric machine i.e. mixed excitation electric machine introducing electrical excitation in magneto, by closing
The structure design of reason can make mixed excitation electric machine, and the efficiency of existing magneto is high, torque/mass ratio is big, has again electro-magnetic motor
The convenient advantage of adjustable magnetic.
Mixed excitation electric machine, particularly brushless excitation type hybrid exciting synchronous motor generally there are radial magnetic circuit and axial magnetic circuit, its
In the representational rotor magnetic pole Splittable hybrid exciting synchronous motor having British scholar E.Spooer to propose, the electrical excitation of this motor
Magnetic circuit is through stator cage, and axial magnetic circuit is long；Another kind is rotor shunt field hybrid exciting synchronous motor, and axial magnetic circuit passes through
The N pole yoke ennation of rotor, S pole yoke ennation and magnetic conduction bridge, simple in construction, axial magnetic is short out, and flux control is easy,
But on rotor, electrical excitation and permanent magnetism are parallel circuits, and during adjustable magnetic, electrical excitation and permanent magnetism influence each other.
Summary of the invention
The technical problem to be solved is to provide a kind of shunt field combined magnetic pole type synchronous motor, and permanent magnetic circuit and electricity are encouraged
Magnetic magnetic circuit is separate on magnetic circuit, and degree of coupling is low, and adjustable magnetic is convenient；Meanwhile, use brushless structure, make reliability higher.
The present invention solves above-mentioned technical problem by the following technical solutions:
The present invention provides a kind of shunt field combined magnetic pole type synchronous motor, the stator including casing, being arranged in casing and rotor,
Described stator includes stator core and armature winding.Described rotor includes rotating shaft and is arranged on the annular of rotating shaft axial one end
Electrical excitation S pole pole shoe, the electrical excitation N pole pole shoe of annular；The electrical excitation S pole pole shoe of described annular is fixing with rotating shaft to be connected.
Be provided with the Exciting Windings for Transverse Differential Protection support of an annular between described electrical excitation S pole pole shoe, electrical excitation N pole pole shoe, described excitation around
Pack support respectively and forms two additional air gaps between electrical excitation S pole pole shoe, electrical excitation N pole pole shoe.Described Exciting Windings for Transverse Differential Protection support
Being fixed on end cap, described Exciting Windings for Transverse Differential Protection is placed on described Exciting Windings for Transverse Differential Protection support.The surface distributed of described rotor has electrical excitation magnetic
Pole and permanent magnetism magnetic pole, and the distribution mode of electrical excitation magnetic pole, permanent magnetism magnetic pole is to arrange a permanent magnetism between each two electrical excitation magnetic pole
One electrical excitation magnetic pole is set between magnetic pole or each two permanent magnetism magnetic pole.Described electrical excitation magnetic pole includes that electrical excitation N pole, electricity are encouraged
Magnetic S pole, wherein, one end vertically, electrical excitation N pole is horn-like extension, and collection is together in annular electrical excitation N pole pole shoe；Electricity is encouraged
Magnetic S pole vertically with one end be bottleneck shape shrink extend, collection together in annular electrical excitation S pole pole shoe；Pole, described electrical excitation S pole
Boots are fixed in rotating shaft.The permanent magnetism magnetic pole yoke that described rotor also includes permanent magnet, is fixed in rotating shaft, described permanent magnet is arranged
Outward flange in permanent magnetism magnetic pole yoke.Between adjacent electrical excitation magnetic pole, permanent magnetism magnetic pole and electrical excitation magnetic pole, permanent magnetism magnetic pole
Non-magnet material all it is filled with between yoke.
As the further prioritization scheme of the present invention, described Exciting Windings for Transverse Differential Protection support being provided with fluting, described Exciting Windings for Transverse Differential Protection is placed on
In the fluting of described Exciting Windings for Transverse Differential Protection support, it is achieved brushless excitation.
As the further prioritization scheme of the present invention, described stator core is fixed on casing.
As the further prioritization scheme of the present invention, described casing, end cap, rotating shaft are made by non-magnet material.
As the further prioritization scheme of the present invention, described electrical excitation N pole pole shoe, electrical excitation S pole pole shoe, Exciting Windings for Transverse Differential Protection support,
Electrical excitation S pole pole shoe, electrical excitation N pole pole shoe, permanent magnetism N pole magnetic pole, permanent magnetism S pole magnetic pole, permanent magnetism magnetic pole yoke, stator iron
The heart is made by permeability magnetic material.
As the further prioritization scheme of the present invention, described end cap is connected with rotating shaft by bearing.
As the further prioritization scheme of the present invention, described electrical excitation magnetic pole, permanent magnetism magnetic pole respectively and exist main between stator core
Air gap.
In one shunt field combined magnetic pole type synchronous motor of the present invention, the path of permanent magnet flux is: permanent magnet, permanent magnetism magnetic pole pole
Air gap under air gap under face, stator core, permanent magnetism magnetic pole pole-face, permanent magnet, permanent-magnet magnetic yoke piece become magnetic loop.Electrical excitation magnetic
Logical path is: air gap under air gap under electrical excitation magnetic pole, electrical excitation magnetic pole pole-face, stator core, electrical excitation magnetic pole pole-face,
Electrical excitation magnetic pole, electrical excitation pole shoe, Exciting Windings for Transverse Differential Protection support, electrical excitation pole shoe constitute electrical excitation magnetic loop.It can thus be seen that
Electrical excitation magnetic pole is produced by electrical excitation, and permanent magnetism magnetic pole is produced by permanent magnet, and only on rotor, both close at magnetic circuit and fasten
Separate, neither series connection, the most non-parallel connection, additionally axial magnetic circuit is without end cap and casing.By changing in Exciting Windings for Transverse Differential Protection
DC current size can change electrical excitation magnetic pole size, can change electricity by the DC current direction in change Exciting Windings for Transverse Differential Protection and encourage
Magnetic pole polarity, in electrical excitation change procedure, does not affect permanent magnetism magnetic pole size.
In the present invention, the armature winding in stator core induces electromotive force because rotor rotates, and only just constitutes the same of armature winding
For coil, cut 2 electrical excitation magnetic poles, 1 permanent magnetism magnetic pole successively because rotor rotates, but electrical excitation magnetic pole size and forever
Magnetic magnetic pole is not of uniform size fixed identical, and the exchange electromotive force amplitude size that the most same coil induces successively is also different, the most non-
Sinusoidal electricity, for realizing the sinusoidal phase voltage of output and the three-phase alternating current of symmetry, then needs to carry out in the connected mode of winding
Corresponding process.
The present invention uses above technical scheme compared with prior art, has following technical effect that
(1) in the design of the present invention, electrical excitation magnetic circuit and permanent magnetic circuit on rotor are separate on magnetic circuit, couple journey
Spending low, adjustable magnetic is convenient；
(2) design of the present invention is compared with existing parallel circuits type mixed excitation electric machine, and permanent magnet flux leakage field degree is low；
(3) in the design of the present invention, use DC excitation, control simple, can bidirectional excitation, the air gap of electrical excitation magnetic pole
Flux control wide ranges；
(4), in the design of the present invention, Exciting Windings for Transverse Differential Protection is arranged on excitation support static on axial end, encourages for brushless
Magnetic, improves reliability.
Accompanying drawing explanation
Fig. 1 is the shunt field combined magnetic pole type synchronous motor axial cross-sectional views along symmetrical center line.
Fig. 2 is the axial cross-sectional views of the shunt field combined magnetic pole inclined symmetrical center line of type synchronous motor 60 degree.
Fig. 3 is the sectional view of A-A in Fig. 1.
Fig. 4 is rotor structure figure.
Fig. 5 is electrical excitation S electrode structure figure.
Fig. 6 is electrical excitation N electrode structure figure.
Fig. 7 is permanent magnetism magnetic pole structure chart.
Fig. 8 is permanent magnet flux path profile.
Electro-magnetic flux path profile when Fig. 9 is to increase magnetic.
Wherein: 1-rotating shaft；2-end cap；3-Exciting Windings for Transverse Differential Protection；4-electrical excitation S pole pole shoe；5-electrical excitation S pole；6-permanent magnetism magnetic pole
Yoke；7-armature winding；8-stator core；9-casing；10-bearing；11-Exciting Windings for Transverse Differential Protection support；12-electrical excitation N pole pole shoe；
13-electrical excitation N pole；14-permanent magnet；15-permanent magnetism N pole magnetic pole；16-permanent magnetism S pole magnetic pole.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described in further detail:
The present invention designs a kind of shunt field combined magnetic pole type synchronous motor, as shown in Figure 1, Figure 2, including casing 9, is arranged on casing
Stator in 9 and rotor, described stator includes stator core 8 and armature winding 7, and described rotor includes permanent magnet 14.Described
Stator core 8 is fixed on casing.
Described rotor includes rotating shaft 1 and is arranged on the electrical excitation S pole pole shoe 4 of annular of the axial one end of rotating shaft 1, annular
Electrical excitation N pole pole shoe 12；The electrical excitation S pole pole shoe 4 of described annular is fixing with rotating shaft 1 to be connected.
As shown in Figure 4, the excitation of an annular it is provided with between described electrical excitation S pole pole shoe 4, electrical excitation N pole pole shoe 12
Winding support 11, described Exciting Windings for Transverse Differential Protection support 11 respectively and is formed between electrical excitation S pole pole shoe 4, electrical excitation N pole pole shoe 12
Two additional air gaps.Described Exciting Windings for Transverse Differential Protection support 11 is fixed on end cap 2, and described Exciting Windings for Transverse Differential Protection 3 is placed on described Exciting Windings for Transverse Differential Protection
On support 11.
The surface distributed of described rotor has electrical excitation magnetic pole and permanent magnetism magnetic pole, and the distribution mode of electrical excitation magnetic pole, permanent magnetism magnetic pole is
Arrange between each two electrical excitation magnetic pole and an electrical excitation magnetic pole is set between a permanent magnetism magnetic pole or each two permanent magnetism magnetic pole.Phase
It is filled with non-magnet material between the electrical excitation magnetic pole of neighbour, permanent magnetism magnetic pole, uses solidification measure to make electrical excitation magnetic pole and permanent magnetism magnetic pole
Being relatively fixed is an entirety.Described electrical excitation magnetic pole, permanent magnetism magnetic pole respectively and form main air gap between stator core 8.Such as Fig. 3
Shown in, a permanent magnetism magnetic pole N pole 15 is set between two electrical excitation S poles 5, between each two electrical excitation N pole 13, arranges one
Individual permanent magnetism magnetic pole S pole 16.
Described electrical excitation magnetic pole includes electrical excitation N pole 13, electrical excitation S pole 5, wherein, one end vertically, electrical excitation N pole 13
In horn-like extension, collection is together in annular electrical excitation N pole pole shoe 12, as shown in Figure 5；The most same one end, electrical excitation S pole 5
Shrinking in bottleneck shape and extend, collection is together in annular electrical excitation S pole pole shoe 4, as shown in Figure 6；Described electrical excitation S pole pole shoe 4
It is fixed in rotating shaft 1.
Described rotor also includes the permanent magnetism magnetic pole yoke 6 being fixed in rotating shaft 1, and described permanent magnet 14 is arranged on permanent magnetism magnetic pole yoke
The outward flange of 6.Described permanent magnetism magnetic pole is the permanent magnetism magnetic pole N pole formed by the permanent magnet 14 that two take advantage of a situation (magnetic potential) is connected
15 and permanent magnetism magnetic pole S poles 16, as shown in Figure 7.
Described casing 9, end cap 2, rotating shaft 1 are non-magnet material and make, described electrical excitation N pole pole shoe 12, electrical excitation S
Pole pole shoe 4, Exciting Windings for Transverse Differential Protection support 11, electrical excitation S pole pole shoe 4, electrical excitation N pole pole shoe 12, permanent magnetism N pole magnetic pole 15,
Permanent magnetism S pole magnetic pole 16, permanent magnetism magnetic pole yoke 6, stator core 8 are made by permeability magnetic material.
In the inventive solutions, when rotor rotates, casing 9, stator core 8, end cap 2, Exciting Windings for Transverse Differential Protection support
11 is all actionless parts, and rotating shaft 1 drags rotor and rotates together.
Flux control principle and the voltage-regulation principle thereof of shunt field combined magnetic pole type synchronous motor of the present invention are as follows:
1. when the exciting current in Exciting Windings for Transverse Differential Protection 3 is zero, rotor magnetic pole only exists permanent magnetic field, as shown in Figure 8, according to forever
The polarity of magnet 14 understands permanent magnet flux path: the air gap under magnetic pole 15 pole-face of magnetic pole 15 → permanent magnetism N pole, permanent magnetism N pole →
Air gap under stator core 8 → stator core yoke portion → permanent magnetism S pole magnetic pole 16 pole-face → permanent magnetism S pole magnetic pole 16 → permanent magnet 14
6 → permanent magnetism N pole, → permanent magnetism magnetic pole yoke portion magnetic pole 15 constitutes magnetic loop, and now motor pole number is 2.
2. when Exciting Windings for Transverse Differential Protection 3 exists exciting current and the sense of current as shown in Figure 9 time, the magnetic flux path of electrical excitation magnetic pole is:
5 → electrical excitation S pole, electrical excitation magnetic pole S pole pole shoe 4 → additional air gap → Exciting Windings for Transverse Differential Protection support 11 → additional air gap → electrical excitation N
Air gap under the pole-face of 13 → electrical excitation N pole 13, pole shoe 12 → electrical excitation N pole, pole → stator core 8 → electrical excitation S pole 5 pole-face
Under air gap → electrical excitation S pole 5 constitute electrical excitation magnetic loop, by change exciting current size and Orientation can correspondingly change
The size of electrical excitation air-gap field and polarity distribution；In motor gas-gap in addition to there is electro-magnetic flux, there is also permanent magnet flux,
Permanent magnet flux path now with 1. in identical, now motor pole number is 6.
3. as it is shown in figure 9, the armature winding 7 being positioned in stator core 8 induces electromotive force, only to constitute electricity because rotor rotates
The feature of the induced potential of this motor is analyzed: in rotor rotation process, some coil as a example by some coil of pivot winding 7
2 electrical excitation magnetic poles, 1 permanent magnetism magnetic pole of cutting successively, but electrical excitation magnetic pole size is not of uniform size with permanent magnetism magnetic pole fixed identical,
The alternating current amplitude size induced successively in the most same coil is also change, i.e. non-sine electricity, for realizing output sine
Phase voltage and the three-phase alternating current of symmetry, then need to process accordingly in the connected mode of winding.
Shunt field combined magnetic pole type synchronous motor of the present invention is identical with the dividing mode of conventional synchronization motor winding facies tract, can be according to
60 degree of facies tract distribution, it is possible to according to 120 degree of facies tracts, illustrate as a example by 60 degree of facies tracts below:
Motor is 3 to pole as shown in Figure 3, according to the division methods of 60 degree of facies tracts divide shunt field combined magnetic pole type of the present invention with
Step motor armature winding, facies tract is followed successively by: 1A, 1Z, 1B, 1X, 1C, 1Y, 1A, 2Z, 2B, 2X, 2C, 2Y,
3A、3Z、3B、3X、3C、3Y。
Table 1 facies tract distributes
(1) table 1 gives A1 phase (being taken advantage of a situation in series by the coil of 1A, 1X, 2A facies tract), B1 phase (by 1B,
The coil of 1Y, 2B facies tract is taken advantage of a situation in series), C1 phase (being taken advantage of a situation in series by the coil of 1Z, 1C, 2Z facies tract).This
Time: A1 phase, B1 phase, C1 phase are the sinusoidal ac of three-phase symmetrical, and its voltage magnitude size is regulated by electrical excitation, frequency
ForWherein, n is rotating speed, and p is motor number of pole-pairs 3.
(2) table 1 gives A2 phase (being taken advantage of a situation in series by the coil of 2X, 3A, 3X facies tract), B2 phase (by 2X,
The coil of 3B, 3Y facies tract is taken advantage of a situation in series), C2 phase (being taken advantage of a situation in series by the coil of 2C, 3Z, 3C facies tract).This
Time: A2 phase, B2 phase, C2 phase are the sinusoidal ac of three-phase symmetrical, and its amplitude size is regulated by electrical excitation, and frequency is
Wherein, n is rotating speed, and p is motor number of pole-pairs 3.
(3) the A1 phase in table 1, B1 phase, C1 phase constitute the exchange winding of a set of three-phase symmetrical, A2 phase, B2 phase, C2
Constitute the exchange winding of a set of three-phase symmetrical mutually, the armature winding of motor the most as shown in Figure 1 can be parallel branch number be 2
Three-phase ac synchronous motor, it is also possible to be parallel branch number be the three-phase ac synchronous motor of 1, i.e. A phase (A1 facies tract and
The winding of A2 facies tract is taken advantage of a situation series connection), B phase (winding of B1 facies tract and B2 facies tract take advantage of a situation series connection), C phase (C1 and C2 facies tract
Winding take advantage of a situation series connection).
This motor is when motor, and regulation magnetic field makes motor have wider invariable power district, it is easy to accomplish weak magnetic speed-up, uses
When making generator, regulation magnetic field meets the regulatory demand of voltage.
The above, the only detailed description of the invention in the present invention, but protection scope of the present invention is not limited thereto, and any ripe
Know the people of this technology in the technical scope that disclosed herein, it will be appreciated that the conversion expected or replacement, all should contain in the present invention
Comprise within the scope of, therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. shunt field combined magnetic pole type synchronous motor, including casing (9), it is arranged on the end cap (2) at casing (9) two ends, the stator being arranged in casing (9) and rotor, described stator includes stator core (8) and armature winding (7), described rotor includes permanent magnet (14), it is characterised in that:
Described rotor includes rotating shaft (1) and is arranged on rotating shaft (1) axially electrical excitation S pole pole shoe (4) of annular of one end, electrical excitation N pole pole shoe (12) of annular；Electrical excitation S pole pole shoe (4) of described annular is fixing with rotating shaft (1) to be connected；
Being provided with the Exciting Windings for Transverse Differential Protection support (11) of an annular between described electrical excitation S pole pole shoe (4) and electrical excitation N pole pole shoe (12), described Exciting Windings for Transverse Differential Protection support (11) respectively and forms two additional air gaps between electrical excitation S pole pole shoe (4), electrical excitation N pole pole shoe (12)；Described Exciting Windings for Transverse Differential Protection support (11) is fixed on end cap (2)；Described Exciting Windings for Transverse Differential Protection (3) is placed on described Exciting Windings for Transverse Differential Protection support (11)；
The surface distributed of described rotor has electrical excitation magnetic pole and permanent magnetism magnetic pole, and the distribution mode of electrical excitation magnetic pole, permanent magnetism magnetic pole is to arrange between each two electrical excitation magnetic pole to arrange an electrical excitation magnetic pole between a permanent magnetism magnetic pole or each two permanent magnetism magnetic pole；
Described electrical excitation magnetic pole includes electrical excitation N pole (13), electrical excitation S pole (5), and wherein, electrical excitation N pole (13) one end vertically is horn-like extension, collects electrical excitation N pole pole shoe (12) together in annular；Electrical excitation S pole (5) is that bottleneck shape shrinks and extends with one end vertically, collects together in electrical excitation S pole pole shoe (4) of annular；
Described rotor also includes the permanent magnetism magnetic pole yoke (6) being fixed in rotating shaft (1), and described permanent magnet (14) is arranged on the outward flange of permanent magnetism magnetic pole yoke (6)；Non-magnet material all it is filled with between adjacent electrical excitation magnetic pole, permanent magnetism magnetic pole and between electrical excitation magnetic pole, permanent magnetism magnetic pole yoke.
Shunt field combined magnetic pole type synchronous motor the most according to claim 1, it is characterised in that described casing (9), end cap (2), rotating shaft (1) are made by non-magnet material.
Shunt field combined magnetic pole type synchronous motor the most according to claim 1, it is characterised in that described end cap (2) is connected with rotating shaft (1) by bearing (10).
Shunt field combined magnetic pole type synchronous motor the most according to claim 1, it is characterized in that, described electrical excitation N pole pole shoe (12), electrical excitation S pole pole shoe (4), Exciting Windings for Transverse Differential Protection support (11), electrical excitation N pole (13), electrical excitation S pole (5), permanent magnetism magnetic pole, permanent magnetism magnetic pole yoke (6), stator core (8) are made by permeability magnetic material.
Shunt field combined magnetic pole type synchronous motor the most according to claim 1, it is characterised in that described electrical excitation magnetic pole, permanent magnetism magnetic pole respectively and form main air gap between stator core (8).
Shunt field combined magnetic pole type synchronous motor the most according to claim 1, it is characterised in that described stator core (8) is fixed on casing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410335182.8A CN104158372B (en) | 2014-07-14 | 2014-07-14 | Shunt field combined magnetic pole type synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335182.8A CN104158372B (en) | 2014-07-14 | 2014-07-14 | Shunt field combined magnetic pole type synchronous motor |
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| CN104158372A CN104158372A (en) | 2014-11-19 |
| CN104158372B true CN104158372B (en) | 2016-09-07 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6900570B2 (en) * | 1999-12-03 | 2005-05-31 | Ecoair Corp. | Field controlled permanent magnet brushless electric machine |
| CN1710787A (en) * | 2005-06-07 | 2005-12-21 | 南京航空航天大学 | Tangential magnet-steel hybrid exciting synchronous motor |
| CN1767316A (en) * | 2005-09-26 | 2006-05-03 | 南京航空航天大学 | Mixed excitation synchronous motor with radial structure |
| CN102306992A (en) * | 2011-06-27 | 2012-01-04 | 南京航空航天大学 | Bidirectional rotor magnetic shunt mixed excited synchronous generator |
| CN102832776A (en) * | 2012-08-10 | 2012-12-19 | 南京航空航天大学 | Axial non-uniform air gap hybrid excitation synchronous machine |
| CN103780039A (en) * | 2014-01-16 | 2014-05-07 | 南京航空航天大学 | Rotor circuit double-ended excitation type hybrid excitation electrical machine |
-
2014
- 2014-07-14 CN CN201410335182.8A patent/CN104158372B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6900570B2 (en) * | 1999-12-03 | 2005-05-31 | Ecoair Corp. | Field controlled permanent magnet brushless electric machine |
| CN1710787A (en) * | 2005-06-07 | 2005-12-21 | 南京航空航天大学 | Tangential magnet-steel hybrid exciting synchronous motor |
| CN1767316A (en) * | 2005-09-26 | 2006-05-03 | 南京航空航天大学 | Mixed excitation synchronous motor with radial structure |
| CN102306992A (en) * | 2011-06-27 | 2012-01-04 | 南京航空航天大学 | Bidirectional rotor magnetic shunt mixed excited synchronous generator |
| CN102832776A (en) * | 2012-08-10 | 2012-12-19 | 南京航空航天大学 | Axial non-uniform air gap hybrid excitation synchronous machine |
| CN103780039A (en) * | 2014-01-16 | 2014-05-07 | 南京航空航天大学 | Rotor circuit double-ended excitation type hybrid excitation electrical machine |
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| Publication number | Publication date |
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| CN104158372A (en) | 2014-11-19 |
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