CN106357078A - Parallel rotor structured hybrid-excited motor brushless electro-excitation rotor pole - Google Patents
Parallel rotor structured hybrid-excited motor brushless electro-excitation rotor pole Download PDFInfo
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- CN106357078A CN106357078A CN201510435117.7A CN201510435117A CN106357078A CN 106357078 A CN106357078 A CN 106357078A CN 201510435117 A CN201510435117 A CN 201510435117A CN 106357078 A CN106357078 A CN 106357078A
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Abstract
The invention discloses a parallel rotor structured hybrid-excited motor brushless electro-excitation rotor pole with an electro-excitation winding positioned on a rotor; the electro-excitation rotor pole is of nonsalient pole structure and is composed of a linear core pole and an end core pole positioned between a permanent magnet rotor and the linear core pole; the electro-excitation rotor pole is arranged coaxial to an exciter rotating armature and a permanent magnet rotor pole; a rotating rectifying power supply system of the electro-excitation winding combines a six-phase dual-Y-shift 30-DEG rotating armature winding and two three-phase rotating rectifying bridges, and direct current outputs of the two three-phase rotating rectifying bridges are connected in parallel; the brushless electro-excitation rotor pole makes full use of space between permanent magnets and an electro-excitation rotor in an existing parallel rotor structure, gap magnetic field adjusting capacity can be effectively enhanced, high-quality brushless power supply can be provided for the electro-excitation rotor, and the brushless electro-excitation rotor pole also has the function of fault redundant operation.
Description
Technical field
The present invention relates to a kind of parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic
Pole.
Background technology
Mixed excitation electric machine combines the advantage of magneto and electro-magnetic motor, not only has forever
Magnetic-synchro motor high efficiency and the advantage of high power density, are also equipped with electro-magnetic motor simultaneously and adjust
The ability of air-gap field, powering in wind-power electricity generation, electric automobile, naval vessel and aviation in recent years is
The fields such as system get the attention.Existing mixed excitation electric machine topology in, p-m rotor with
The rotor structure that electrical excitation rotor coaxial is arranged side by side, electrical excitation winding is located on rotor, because of its structure
Relatively simple, the regulation magnetic flux that electrical excitation rotor produces needs not move through permanent magnet, does not exist additional
Air gap, voltage regulation capability is strong, becomes one of mixed excitation electric machine important research direction.
United States Patent (USP) us5502368 is the typical structure of parallel rotor structure mixed excitation electric machine
Form, rotor is made up of permanent magnetism and electrical excitation two parts, and wherein p-m rotor carries pole shoe, electricity
Excitation rotor is salient-pole structure, and the two shares a set of stator armature winding.The electrical excitation of this motor
Winding is powered by brush, slip ring.Chinese patent cn101572464b proposes a kind of parallel rotor
Hybrid exciting synchronous motor, the p-m rotor of this motor is arranged side by side with electrical excitation rotor coaxial.Wherein,
Permanent magnet is pasted onto on non-magnetic rotor, and is fixed using metallic sheath, and electrical excitation rotor is adopted
Powered with brush and slip ring.Chinese patent cn200520087443.5 is for automotive field
Tangential permanent magnet and electromagnetic mixed exciting generator, the tangential permanent magnet rotor of this motor and salient pole electricity are encouraged
Magnet rotor is coaxially arranged side by side, and the two shares a set of stator armature winding, electrical excitation winding adopt carbon brush,
Slip ring is powered.
The parallel rotor structure mixed excitation electric machine that above-mentioned electrical excitation winding is located on rotor, mainly
Have the disadvantage that
(1) electrical excitation winding is powered using brush and slip ring, needs in actual applications periodically to tie up
Shield, longtime running then leads to electric supply installation to wear and tear, and reduces reliability.
(2) the mixed excitation electric machine structure analyzing above-mentioned patent understands, in p-m rotor and electricity
All there is larger gap, this is to install necessary to electrical excitation winding overhang between excitation rotor
Space.This segment space leads to motor axial length to increase, and corresponding stator core portion
Dividing but does not provide any space availability ratio and torque density exerted oneself, reduce motor.
Additionally, the present inventor has carried out grinding of correlation for parallel rotor structure mixed excitation electric machine
Study carefully and development work, also confirmed above-mentioned 2 points of deficiencies.Electric machine structure is shown in document [1]: reference
Document [1] palace Solenognathus, Sun Yutian, Liang Yanping, Wang Liang. multiphase mixed at high speed excitation generator gas
Gap magnetic field analysis research [j]. Electric Machines and Control .2014,18 (1): 66.
This motor is equally powered using high-speed slip rings.Advanced development experience have shown that, p-m rotor with
Space between electrical excitation rotor will consider that electrical excitation winding overhang stretches out and manual behaviour simultaneously
Make required distance, the axial length in this space is up to electrical excitation winding overhang maximum extension elongation
1.3 times, increase motor total length and can not be utilized effectively.And, for craft
The magnet exciting coil of molding, this space inner end winding is in irregular shape, leads to end sheath colligation
Uneven thickness, reduces colligation quality.
Content of the invention
The purpose of the present invention, is to provide a kind of brushless electricity of parallel rotor structure mixed excitation electric machine to encourage
Magnet rotor magnetic pole, effectively strengthens air-gap field regulating power, realizes electrical excitation rotor field coil
High-quality, non-brushing power, improve mixed excitation electric machine reliability of operation.
The technical solution adopted in the present invention is: a kind of parallel rotor structure mixed excitation electric machine is no
Brush electrical excitation rotor magnetic pole, electrical excitation rotor magnetic pole by straightway iron core magnetic poles (7) and is located at
End core magnetic pole (6) composition between p-m rotor magnetic pole (2) and straightway iron core magnetic poles (7)；
Electrical excitation rotor magnetic pole and excitation that straightway iron core magnetic poles (7), end core magnetic pole (6) form
Machine rotating armature (15) and the coaxial arrangement of p-m rotor magnetic pole (2)；Electrical excitation winding (9) is using rotation
Turn rectifier power system and realize non-brushing and power, electrical excitation rotor magnetic pole and p-m rotor magnetic pole
(2) share a set of stator winding, and the two number of poles is identical, end core magnetic pole (6) and directly
Line segment iron core magnetic poles (7) are fixed with rotating shaft (1) cooperation, make end core magnetic by key connecting
The d-axis edge of pole (6), straightway iron core magnetic poles (7) and p-m rotor magnetic pole (2) three
Axial direction overlaps.
A kind of parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic pole, described end
In iron core magnetic poles (6), the slot number of c type rotor slot (60) is rotor slot in straightway iron core magnetic poles (7)
(70) 1/2nd of slot number；End core magnetic pole (6) and the groove of straightway iron core magnetic poles (7)
Wide, groove depth all same, rotor slot (60) and rotor slot (70) are rectangular aperture groove；In straight line
Slot wedge is installed at notch (71) place of section iron core magnetic poles (7), and end core magnetic pole (6) adopts binding strap (5)
Fixing electrical excitation winding (9)；First c type rotor tooth (63), the 2nd c type rotor tooth (64),
The width of the 3rd c type rotor tooth (65) is not less than the width of straightway rotor tooth (72)；End
The axial length of the big pole of iron core magnetic poles (62) is not less than the radius of turn of electrical excitation winding (9).
A kind of parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic pole, described rotation
Turn rectifier power system, its exciter rotating armature winding is six phases double y 30 ° of forms of shifting, two
Set y type rotating armature winding lead-out wire be connected respectively to the first three-phase rotary rectifier bridge (16),
The input of the second three-phase rotary rectifier bridge (17), the first three-phase rotary rectifier bridge (16), second
The direct current output of three-phase rotary rectifier bridge (17) is to be connected in parallel；Exciter rotating armature iron core (15)
Upper installation circular base (13), rotary rectifier module (14) is symmetrically mounted on circular base for polylith
(13) both sides, the end banding of armature of exciter winding (12) is fixed by nonmetallic materials retaining ring (11)
On circular base (13).
A kind of parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic pole, described electricity
Excitation rotor magnetic pole is filled by baffle plate (4), end core magnetic pole (6) and straightway iron core magnetic poles (7)
Join composition, baffle plate (4) adopts non-magnet material, the thickness of baffle plate (4) meet colligation intensity will
Get the small value on the basis of asking.
The present invention has following beneficial features:
(1) make full use of motor volume space, improve air-gap field regulating power: the present invention
Involved electrical excitation rotor tip iron core magnetic poles structure, can in limited motor volume,
Make full use of the end space between p-m rotor and electrical excitation rotor, improve the space of motor
Utilization rate, effectively increases the air gap gross area of electrical excitation rotor, is conducive to improving air gap magnetic
Field control ability, reduces exciting current and Exciting Windings for Transverse Differential Protection loss.
(2) the end banding path of rule and effective colligation supporting construction are provided: in end
In the rotor slot in iron core magnetic poles c type path, rotor notch along the circumferential direction is Exciting Windings for Transverse Differential Protection
The colligation of end provides space and path.And, the axial component of c type rotor tooth provides
Effectively support, can make that colligation is more tight, shape is more regular, be conducive to improving excitation around
The fixing reliability in group end.
(3) improve electrical excitation winding overhang heat-sinking capability: electrical excitation winding overhang in the present invention
It is arranged in the rotor slot of end core magnetic pole, the heat that Exciting Windings for Transverse Differential Protection end produces passes through in groove
Insulate to end core magnetic pole c type tooth and rotating shaft transmission, adopt with conventional electrical excitation rotor tip
Compared with the situation of stainless 18 N steel guard ring or nonmetallic materials retaining ring, heat is easier to be pulled away, and carries
High heat-sinking capability.
(4) improve the reliability of longtime running and possess fault redundance service ability: the present invention
The rotary rectifier electric power system being related to, double for six phases y are moved 30 ° of rotating armature windings and two set three
Phase rotary rectifier bridge combines, and is only achieved that 12 using an exciter rotating armature part
The rectification output of pulse wave, had both achieved the non-brushing that electrical excitation rotor is powered, again than conventional six kinds of pulses
Ripple rectification has higher direct current supply quality.If it is considered that margin of safety, also can be according to wherein
One group of rectifier bridge breaks down, and another set remains to effective excitation and is designed.Therefore, favorably
In the reliability improving motor operation, and possesses redundant ability.
The present invention powers for the independent current source that load excursion is big, voltage regulation performance has high demands
Unite and need the electric automobile of wide speed regulating range operation, field of wind power generation to have important
Using value.
Brief description
The brushless parallel rotor structure chart of Fig. 1 strap end portion iron core magnetic poles；
Fig. 2 end core field structure top view；
Fig. 3 end core field structure oblique view；
Fig. 4 straightway iron core magnetic poles sectional view；
Fig. 5 electrical excitation rotor magnetic pole assemble sequence schematic diagram；
The schematic diagram of Fig. 6 rotary rectifier electric power system.
Specific embodiment:
Below in conjunction with the accompanying drawings technical scheme is described in detail.
As shown in figure 1, a kind of parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic
Pole, by straightway iron core magnetic poles 7 and positioned at p-m rotor magnetic pole 2 and straightway iron core magnetic poles
End core magnetic pole 6 between 7 forms；Straightway iron core magnetic poles 7, end core magnetic pole 6
The electrical excitation rotor magnetic pole of composition is same with exciter rotating armature 15 and p-m rotor magnetic pole 2
Axle is arranged；Electrical excitation winding 9 is realized non-brushing using rotary rectifier electric power system and is powered.Electricity is encouraged
Magnet rotor magnetic pole and p-m rotor magnetic pole 2 share a set of stator winding, and the two number of poles is identical,
End core magnetic pole 6 and straightway iron core magnetic poles 7 are fixed with rotating shaft 1 cooperation, by key connecting
Make that end core magnetic pole 6, straightway iron core magnetic poles 7 and p-m rotor magnetic pole 2 three's is straight
Axle in axial direction overlaps.The rotor slot 60 of end core magnetic pole 6 is in c type in magnetic pole surfaces,
As shown in Figure 2.
As shown in Figure 3 and Figure 4, in end core magnetic pole 6, the slot number of c type rotor slot 60 is
/ 2nd of the slot number of rotor slot 70 in straightway iron core magnetic poles 7；End core magnetic pole 6
With groove width, groove depth all same, rotor slot 60 and the rotor slot 70 of straightway iron core magnetic poles 7,
Its grooved is rectangular aperture groove；At the notch 71 of straightway iron core magnetic poles 7, slot wedge is installed,
And adopt binding strap 5 to fix electrical excitation winding 9, electrical excitation winding in end core magnetic pole 6
9 can adopt copper strap wire or enamel-covered wire according to actual needs；First c type rotor tooth 63,
Two c type rotor tooths 64, the width t of the 3rd c type rotor tooth 652Not less than straightway rotor tooth
72 width t1；The axial length l of the big pole of end core magnetic pole 622Not less than electrical excitation winding
9 radius of turn r.First c type rotor tooth 63, the 2nd c type rotor tooth 64, the 3rd c
Groove 61 on type rotor tooth 65, can provide effective support for binding strap 5, be conducive to carrying
The reliability of high end banding.Insulation is placed between the end of electrical excitation winding 9 and rotating shaft 1
Bed course 10, using the end of rustless steel or the fixing electrical excitation winding 9 of nonmetallic materials retaining ring 8.
Centered on the big pole 62 of end core magnetic pole 6, outwards define c type rotor tooth sequence number successively
For n=1,2 ... (z2/ 2-1), z2For every pole rotor slot number.Assume the air gap flux density at big pole 62
For b0, disregard saturation and nonlinear impact, at n-th c type rotor tooth, air gap flux density is near
Seemingly for bnr=(z2/2-n)b0/(z2/2).In axial length l2Magnetic pole in space can approximately be regarded as
The extension of straightway iron core magnetic poles 7, the ladder magnetic that each c type rotor tooth produces in addition is close, makes
Total air-gap flux that the electrical excitation rotor magnetic pole that the present invention provides produces is higher than conventional only straight
The situation of line segment iron core magnetic poles 7, is conducive to improving the air-gap field regulating power of motor.
As shown in figure 5, described electrical excitation rotor magnetic pole is by baffle plate 4, end core magnetic pole 6
And straightway iron core magnetic poles 7 assembling is constituted.Baffle plate 4 adopts non-magnet material, on the one hand may be used
To increase the magnetic resistance of the brow leakage magnetic circuit of permanent magnetism magnetic pole 2, reduce the end leakage of permanent magnetism magnetic pole 2
Magnetic, on the other hand can reduce stator leakage reactance.Support needed for colligation outermost electrical excitation winding
Step 41 is located on baffle plate 4, and the thickness (without support level 41) of baffle plate 4 is tied up in satisfaction
Get the small value on the basis of pricking intensity requirement.
Electrical excitation winding 9 is realized non-brushing using rotary rectifier electric power system and is powered, rotary rectifier
The principle of electric power system is as shown in Figure 6.The rotating armature winding of exciter is that the double y of six phases moves
30 ° of forms, the lead-out wire of two sets of y type armature winding is connected respectively to the first three-phase rotary rectifier
Bridge 16, the input of the second three-phase rotary rectifier bridge 17, the first three-phase rotary rectifier bridge 16,
The direct current output of the second three-phase rotary rectifier bridge 17 is to be connected in parallel.Rotary rectifier system straight
Stream output is connected to the lead-out wire of electrical excitation winding 9, thus realize electrical excitation rotor brushlessization supplying
Electricity.Circular base 13, rotary rectifier module 14 are installed on exciter rotating armature iron core 15
For polylith, it is symmetrically mounted on circular base 13 both sides, will be encouraged using nonmetallic materials retaining ring 11
The end banding of magnetomechanical armature winding 12 is fixed on circular base 13.Due to this commutation system
For 12 pulse wave rectifiers, therefore power supply quality is higher than conventional 6 pulse wave rectifiers.Additionally, because of two groups
Three-phase rotary rectifier bridge is to be connected in parallel, when therefore can break down according to one of which, another
Group remains able to provide excitation to be designed, and makes electric power system possess fault redundance ability.
Claims (4)
1. a kind of parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic pole, its
Feature is: electrical excitation rotor magnetic pole by straightway iron core magnetic poles (7) and is located at p-m rotor magnetic
End core magnetic pole (6) composition between pole (2) and straightway iron core magnetic poles (7)；Straightway is unshakable in one's determination
Electrical excitation rotor magnetic pole and exciter rotating armature that magnetic pole (7), end core magnetic pole (6) form
And p-m rotor magnetic pole (2) is coaxial arranges (15)；Electrical excitation winding (9) is powered using rotary rectifier
System is realized non-brushing and is powered, and electrical excitation rotor magnetic pole shares one with p-m rotor magnetic pole (2)
Set stator winding, and the two number of poles is identical, end core magnetic pole (6) and straightway magnetic unshakable in one's determination
Pole (7) and rotating shaft (1) cooperation is fixed, and makes end core magnetic pole (6), straight by key connecting
The d-axis of line segment iron core magnetic poles (7) and p-m rotor magnetic pole (2) three in axial direction weighs
Close.
2. a kind of parallel rotor structure mixed excitation electric machine according to claim 1 is brushless
Electrical excitation rotor magnetic pole, is characterized in that: the groove of c type rotor slot (60) in end core magnetic pole (6)
Number is 1/2nd of the slot number of rotor slot (70) in straightway iron core magnetic poles (7)；End core magnetic
The groove width of pole (6) and straightway iron core magnetic poles (7), groove depth all same, c type rotor slot (60) and turn
Pilot trench (70) is rectangular aperture groove；Notch (71) place mounting groove in straightway iron core magnetic poles (7)
Wedge, end core magnetic pole (6) adopts the fixing electrical excitation winding (9) of binding strap (5)；First c type turns
Sub- tooth (63), the 2nd c type rotor tooth (64), the width of the 3rd c type rotor tooth (65) are not less than
The width of straightway rotor tooth (72)；The axial length of the big pole of end core magnetic pole (62) is not little
Radius of turn in electrical excitation winding (9).
3. a kind of parallel rotor structure mixed excitation electric machine according to claim 1 is brushless
Electrical excitation rotor magnetic pole, is characterized in that: described rotary rectifier electric power system, and its exciter revolves
Turning armature winding is that the double y of six phases moves 30 ° of forms, the lead-out wire of two sets of y type rotating armature windings
Be connected respectively to the first three-phase rotary rectifier bridge (16), the second three-phase rotary rectifier bridge (17) defeated
Enter end, the first three-phase rotary rectifier bridge (16), the second three-phase rotary rectifier bridge (17) direct current defeated
Go out for being connected in parallel；Exciter rotating armature iron core (15) is upper to install circular base (13), rotation
Rectification module (14) is symmetrically mounted on circular base (13) both sides, nonmetallic materials retaining ring for polylith
(11) end banding of armature of exciter winding (12) is fixed on circular base (13).
4. a kind of parallel rotor structure mixed excitation electric machine according to claim 1 is brushless
Electrical excitation rotor magnetic pole, is characterized in that: electrical excitation rotor magnetic pole is by baffle plate (4), end core
Magnetic pole (6) and straightway iron core magnetic poles (7) assembling are constituted, and baffle plate (4) adopts non-magnet material,
The thickness of baffle plate (4) gets the small value on the basis of meeting colligation intensity requirement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510435117.7A CN106357078B (en) | 2015-07-23 | 2015-07-23 | Parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic pole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510435117.7A CN106357078B (en) | 2015-07-23 | 2015-07-23 | Parallel rotor structure mixed excitation electric machine brush-less electrically exciting rotor magnetic pole |
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| Publication Number | Publication Date |
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| CN106357078A true CN106357078A (en) | 2017-01-25 |
| CN106357078B CN106357078B (en) | 2018-07-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525753A (en) * | 2020-05-12 | 2020-08-11 | 南京中车浦镇海泰制动设备有限公司 | Manufacturing process of braking magnetic pole for linear eddy current braking device |
| CN116317426A (en) * | 2023-05-17 | 2023-06-23 | 哈尔滨电机厂有限责任公司 | Variable magnetic circuit type exciting winding fastening structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345453A (en) * | 2008-05-06 | 2009-01-14 | 南京航空航天大学 | Mixed field excitation brushless synchronous motor with coordination structure |
| CN202889138U (en) * | 2012-09-07 | 2013-04-17 | 南京航空航天大学 | Parallel type composite excitation brushless direct-current motor |
| CN203278585U (en) * | 2013-06-09 | 2013-11-06 | 上海电机学院 | Halbach parallel rotor hybrid excitation synchronous motor |
-
2015
- 2015-07-23 CN CN201510435117.7A patent/CN106357078B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345453A (en) * | 2008-05-06 | 2009-01-14 | 南京航空航天大学 | Mixed field excitation brushless synchronous motor with coordination structure |
| CN202889138U (en) * | 2012-09-07 | 2013-04-17 | 南京航空航天大学 | Parallel type composite excitation brushless direct-current motor |
| CN203278585U (en) * | 2013-06-09 | 2013-11-06 | 上海电机学院 | Halbach parallel rotor hybrid excitation synchronous motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525753A (en) * | 2020-05-12 | 2020-08-11 | 南京中车浦镇海泰制动设备有限公司 | Manufacturing process of braking magnetic pole for linear eddy current braking device |
| CN116317426A (en) * | 2023-05-17 | 2023-06-23 | 哈尔滨电机厂有限责任公司 | Variable magnetic circuit type exciting winding fastening structure |
| CN116317426B (en) * | 2023-05-17 | 2023-08-18 | 哈尔滨电机厂有限责任公司 | Variable magnetic circuit type exciting winding fastening structure |
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