CN102005834A - Hybrid excitation doubly salient motor adopting axial excitation - Google Patents
Hybrid excitation doubly salient motor adopting axial excitation Download PDFInfo
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- CN102005834A CN102005834A CN 201010560410 CN201010560410A CN102005834A CN 102005834 A CN102005834 A CN 102005834A CN 201010560410 CN201010560410 CN 201010560410 CN 201010560410 A CN201010560410 A CN 201010560410A CN 102005834 A CN102005834 A CN 102005834A
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Abstract
The invention discloses a hybrid excitation doubly salient motor adopting three kinds of axial excitations, which belongs to the field of a motor with a doubly salient structure. The motor comprises at least two axially arranged doubly salient monomer structures; each monomer structure comprises a salient pole stator iron core (1), an armature winding (2) wound on the teeth of the stator iron corn (1), and a salient pole rotor iron core (3); and the stator iron core (1) of each monomer structure forms a magnetic path through a stator axial magnetic back iron (4). The motor can adopt an axial excitation winding (6) and an axial magnetic permanent magnet steel (7) for excitation, or adopts the axial excitation winding (6) and a non-axial magnetic permanent magnet (8) for excitation, or adopts the axial magnetic permanent magnet steel (7) and a radial excitation winding (9) for excitation, and the rotor of each monomer structure is arranged on a rotating shaft (5). The motor has two types of excitation sources, and the excitation field is easy to be adjusted. The motor has the advantages of high excitation efficiency and wide application range.
Description
Technical field
The present invention relates to the mixed excitation biconvex pole motor T of three kinds of axial excitations, belong to biconvex electrode structure machine field.
Background technology
The Ba Lagunuofu of Moscow aeronautical engineering institute professor proposed the structure of magnetic potential mixed excitation synchronous generator in parallel in 1988.Stator is identical with common synchronous machine, and rotor is divided into two parts, and a part is a permanent magnet excitation, and another part is electric excitation.The defective of this motor is: electric excitation division is divided into claw-pole structure, and additional air gap is many, axial magnetic circuit, and leakage field is big, and electric excitation function is restricted.
Japan doctor T.Mizuno etc. has proposed axial/radial magnetic circuit mixed excitation synchronous generator.The stator armature winding of this motor is common three-phase symmetric winding, and stator core is divided into two sections by stator ring DC excitation winding, and this two iron legs heart mechanically with on the magnetic is connected by its outer back of the body yoke (casing that is used for axial magnetic conduction); Rotor is separated into two parts also: N is extreme and S is extreme, and every interpole that is extremely formed by same polarity permanent-magnet pole and iron core is staggered, and the N at two ends, S permanent-magnet pole and interpole also are staggered.One solid flux sleeve letter (rotor back of the body yoke) is arranged between rotor core and rotating shaft, be used for the axial magnetic conduction of rotor.The defective of this motor is: additional air gap is many, but is fixing air gap; Have the axial/radial magnetic circuit, electric machine structure optimization is tied.
Professor Lipo of Wisconsin-Madison university waits and has proposed doubly salient permanent magnet motor, and its structure is to have increased permanent magnet excitation on the basis of switched reluctance machines, because its excitation field is difficult for adjusting, so can not use as generator.
Professor Yan Yangguang of Nanjing Aero-Space University waits and has proposed electric excitation biconvex electrode electric machine (" doubly-salient brushless DC generator ", Granted publication CN1099155C), and the excitation source of double salient-pole electric machine is become electric excitation winding from permanent magnet.When working, do not need rotor-position sensor, and excitation winding only needs the single tube converter to power, regulate excitation winding electric current adjustable output voltage, but demagnetization during fault has high reliability features as generator.
In recent years, the mixed excitation biconvex pole motor T that permanent magnet excitation and electric excitation are combined is subjected to growing interest.
Professors Lipo etc. propose a kind of double-convex pole hybrid excitation motor, and it is to develop to come out on the basis of doubly salient permanent magnet motor, has kept whole advantages of doubly salient permanent magnet motor.This motor can be by the direction and the size adjustment air-gap field of control exciting current.But electric energized circuit passes through permanent magnet, and electric excitation efficiency is low.
The old clear spring of Hong Kong University, professor Jiang Jianzhong of Shanghai Polytechnic Univ etc. have proposed a kind of Lundell hybrid exciting synchronous motor.The external stator of this motor and the stator of common electric machine are similar, are embedded with heterogeneous symmetric winding in the groove, and rotor adopts claw-pole structure, places permanent magnet between two adjacent pawl utmost points, is placed with annular DC excitation winding on internal stator.Because the DC excitation winding places in the formed zone, inside and outside unit by the pawl utmost point, space availability ratio height, compact conformation.But owing to there is axial magnetic circuit, electric excitation efficiency is low.
Summary of the invention
The present invention is directed to the defective of prior art, and in conjunction with the advantage that has mixed excitation electric machine now, and three kinds of mixed excitation biconvex pole motor Ts that axially have magnetic excitation circuit and do not have additional air gap are proposed.
The mixed excitation biconvex pole motor T of first kind of axial excitation, comprise stator core, armature winding, rotor core, stator shaft orientation magnetic conduction back iron, rotating shaft, the permanent magnetic steel of excitation winding and axial magnetized, wherein: by stator core, at least two biconvex utmost point monomer structures by axially-aligned are formed in armature winding and rotor core, stator shaft orientation magnetic conduction back iron provides axial magnetic circuit for stator core, excitation winding is wound on the stator shaft orientation magnetic conduction back iron between the adjacent biconvex utmost point monomer structure, the permanent magnetic steel of axial magnetized is embedded in the stator shaft orientation magnetic conduction back iron place between the adjacent biconvex utmost point monomer structure, and armature winding is wound on the tooth of stator core.
The mixed excitation biconvex pole motor T of second kind of axial excitation, comprise stator core, armature winding, rotor core, stator shaft orientation magnetic conduction back iron, rotating shaft, excitation winding and non axial magnetized permanent magnet, wherein: form at least two biconvex utmost point monomer structures by axially-aligned by stator core, armature winding, rotor core and non axial magnetized permanent magnet, stator shaft orientation magnetic conduction back iron provides axial magnetic circuit for stator core, excitation winding is wound on the stator shaft orientation magnetic conduction back iron between the adjacent biconvex utmost point monomer structure, and armature winding is wound on the tooth of stator core.
The mixed excitation biconvex pole motor T of the third axial excitation, comprise stator core, armature winding, rotor core, stator shaft orientation magnetic conduction back iron, rotating shaft, the permanent magnetic steel of axial magnetized and the excitation winding of excitation radially, wherein: by stator core, armature winding, rotor core and radially the excitation winding of excitation form at least two biconvex utmost point monomer structures by axially-aligned, stator shaft orientation magnetic conduction back iron provides axial magnetic circuit for stator core, the permanent magnetic steel of axial magnetized is embedded in the stator shaft orientation magnetic conduction back iron place between the adjacent biconvex utmost point monomer structure, and armature winding is wound on the tooth of stator core.
Compared with prior art, the present invention has following beneficial effect:
1, since permanent magnet and excitation winding jointly as excitation source, excitation efficiency height, and excitation field is easy to regulate.
2, can reduce torque pulsation by the angle that staggers between each monomer skewed slot or the monomer.
3, can choose corresponding excitation compound mode according to the different application occasion, applying flexible, applied widely.
Description of drawings
Fig. 1 (a) is for being equipped with the structural representation of the axial magnetized permanent magnetic steel and the axial excitation mixed excitation biconvex pole motor T of axial excitation winding; Fig. 1 (b) is the A-A cross section structure schematic diagram of Fig. 1 (a); Fig. 1 (c) is the B-B cross section magnetic circuit schematic diagram of Fig. 1 (a).
Fig. 2 (a) is the structural representation that the axial excitation mixed excitation biconvex pole motor T of axial excitation winding is housed; Fig. 2 (b) is the C-C cross section structure schematic diagram of Fig. 2 (a); Fig. 2 (c) is the D-D cross section magnetic circuit schematic diagram of Fig. 2 (a).
Fig. 3 (a) is the structural representation that the axial excitation mixed excitation biconvex pole motor T of axial magnetized permanent magnetic steel is housed; Fig. 3 (b) is the E-E cross section structure schematic diagram of Fig. 3 (a); Fig. 3 (c) is the F-F cross section magnetic circuit schematic diagram of Fig. 3 (a).
Label title among Fig. 1, Fig. 2, Fig. 3: 1, stator core; 2, armature winding; 3, rotor core; 4, stator shaft orientation magnetic conduction back iron; 5, rotating shaft; 6, (axially) excitation winding; 7, the permanent magnetic steel of axial magnetized; 8, tangential magnetized permanent magnet; 9, the excitation winding of excitation radially.
Embodiment
Shown in Fig. 1 (a)～(c), a kind of axial excitation mixed excitation biconvex pole motor T structure that axial magnetized permanent magnetic steel and axial excitation winding are housed simultaneously of the present invention, comprise stator core 1, armature winding 2, rotor core 3, stator shaft orientation magnetic conduction back iron 4, rotating shaft 5, the permanent magnetic steel 7 of excitation winding 6 and axial magnetized, wherein: by stator core 1, at least two biconvex utmost point monomer structures by axially-aligned are formed in armature winding 2 and rotor core 3, rotor core 3 is installed in the rotating shaft 5, stator shaft orientation magnetic conduction back iron 4 provides axial magnetic circuit for stator core 1, excitation winding 6 is wound on the stator shaft orientation magnetic conduction back iron 4 between the adjacent biconvex utmost point monomer structure, the permanent magnetic steel 7 of axial magnetized is embedded in stator shaft orientation magnetic conduction back iron 4 places between the adjacent biconvex utmost point monomer structure, and armature winding 2 is wound on the tooth of stator core 1.
Shown in Fig. 2 (a)～(c), a kind of axial excitation mixed excitation biconvex pole motor T structure that axial excitation winding is housed of the present invention, comprise stator core 1, armature winding 2, rotor core 3, stator shaft orientation magnetic conduction back iron 4, rotating shaft 5, excitation winding 6 and non axial magnetized permanent magnet 8, wherein: by stator core 1, armature winding 2, rotor core 3 and non axial magnetized permanent magnet 8 are formed at least two biconvex utmost point monomer structures by axially-aligned, rotor core 3 is installed in the rotating shaft 5, stator shaft orientation magnetic conduction back iron 4 provides axial magnetic circuit for stator core 1, excitation winding 6 is wound on the stator shaft orientation magnetic conduction back iron 4 between the adjacent biconvex utmost point monomer structure, and armature winding 2 is wound on the tooth of stator core 1.Described non axial magnetized permanent magnet 8 is embedded between stator core 1 and the stator shaft orientation magnetic conduction back iron 4.
Shown in Fig. 3 (a)～(c), a kind of axial excitation mixed excitation biconvex pole motor T structure that the axial magnetized permanent magnetic steel is housed of the present invention, comprise stator core 1, armature winding 2, rotor core 3, stator shaft orientation magnetic conduction back iron 4, rotating shaft 5, the permanent magnetic steel 7 of axial magnetized and the excitation winding 9 of excitation radially, wherein: by stator core 1, armature winding 2, rotor core 3 and radially the excitation winding 9 of excitation form at least two biconvex utmost point monomer structures by axially-aligned, rotor core 3 is installed in the rotating shaft 5, stator shaft orientation magnetic conduction back iron 4 provides axial magnetic circuit for stator core 1, the permanent magnetic steel 7 of axial magnetized is embedded in stator shaft orientation magnetic conduction back iron 4 places between the adjacent biconvex utmost point monomer structure, and armature winding 2 is wound on the tooth of stator core 1.
Armature winding 2 on each biconvex utmost point monomer structure corresponding teeth in above-mentioned three kinds of motors can connect coiling, also coiling separately; Salient pole stator core 1 is formed by silicon steel plate stacking; The salient pole stator core 1 of adjacent each biconvex utmost point monomer structure is provided with axial magnetic conduction back iron 4, and axial permanent magnetic potential or axial electric excitation magnetic potential are guided in the radial air gap.
When axial magnetized permanent magnetic steel and axial excitation winding are equipped with in the present invention simultaneously, do not need the excitation winding (radially) of conventional electric excitation biconvex electrode electric machine or the permanent magnet of conventional doubly salient permanent magnet motor (tangentially magnetization or diametrical magnetization) in the biconvex utmost point monomer structure; When the present invention only is equipped with axial excitation winding, in biconvex utmost point monomer structure, be provided with the permanent magnet (tangentially magnetization or diametrical magnetization) of conventional doubly salient permanent magnet motor; When the axial magnetized permanent magnetic steel only is equipped with in the present invention, in biconvex utmost point monomer structure, be provided with the radially excitation winding of conventional electric excitation biconvex electrode electric machine.
In each biconvex utmost point monomer structure, the magnetic potential that existing permanent magnet produces, the magnetic potential that has electric excitation winding to produce again, the magnetic potential that has a pair of utmost point at least is to be provided by axial excitation source.The polarity of the sense of current and the permanent magnet of excitation winding is set, makes that individual stator tooth excitation change in polarity once every m * n (m is the number of phases, and n is a positive integer) in described monomer structure.In addition, can stagger angle or adopt flume structure of the rotor core in each monomer structure is with the potential waveform that reduces cogging torque or be optimized.
Axial excitation mixed excitation biconvex pole motor T of the present invention both can be used as generator, also can be used as motor.Below the magnetic excitation circuit of three kinds of motors is analyzed.
In Fig. 1, Fig. 2, three kinds of motors shown in Figure 3, axially the magnetic circuit of excitation source is: from the magnetic potential N utmost point of certain excitation winding or permanent magnet generation, through stator shaft orientation magnetic conduction back iron, enter the stator core of monomer structure, enter main air gap again, through rotor core, relative main air gap, get back to the magnetic potential S utmost point that relative excitation winding or permanent magnet produce through stator core, stator shaft orientation magnetic conduction back iron again.
In motor shown in Figure 2, the magnetic circuit that tangentially magnetizing permanent magnet provides is: from the permanent magnet N utmost point, pass through stator core and enter main air gap, pass through rotor core, enter main air gap again, get back to this permanent magnet S utmost point through stator core again.
In motor shown in Figure 3, the magnetic circuit that the excitation winding magnetic potential provides is: from stator core, enter main air gap, pass through rotor core, enter main air gap again, get back to stator core.
Therefore, mixed excitation biconvex pole motor T for the axial excitation of the present invention, be the relation of series connection magnetic potential between the excitation winding of excitation between the permanent magnet of excitation or axially axially, make some magnetic circuit formation series relationship extremely down of two adjacent biconvex utmost point monomer structures.But for certain monomer structure, the magnetic circuit that all kinds of excitation sources form therein is separate.
Each biconvex utmost point monomer structure can have identical or different stator and rotor number of poles among the present invention, and when the stator and rotor number of poles of each monomer structure was identical, the armature winding on the corresponding stator poles of each monomer structure was connected in series.
Claims (5)
1. the mixed excitation biconvex pole motor T of an axial excitation, comprise stator core (1), armature winding (2), rotor core (3), stator shaft orientation magnetic conduction back iron (4), rotating shaft (5), the permanent magnetic steel (7) of excitation winding (6) and axial magnetized, it is characterized in that: by stator core (1), at least two biconvex utmost point monomer structures by axially-aligned are formed in armature winding (2) and rotor core (3), stator shaft orientation magnetic conduction back iron (4) provides axial magnetic circuit for stator core (1), excitation winding (6) is wound on the stator shaft orientation magnetic conduction back iron (4) between the adjacent biconvex utmost point monomer structure, the stator shaft orientation magnetic conduction back iron (4) that the permanent magnetic steel of axial magnetized (7) is embedded between the adjacent biconvex utmost point monomer structure is located, and armature winding (2) is wound on the tooth of stator core (1).
2. the mixed excitation biconvex pole motor T of an axial excitation, comprise stator core (1), armature winding (2), rotor core (3), stator shaft orientation magnetic conduction back iron (4), rotating shaft (5), excitation winding (6) and non axial magnetized permanent magnet (8), it is characterized in that: by stator core (1), armature winding (2), rotor core (3) and non axial magnetized permanent magnet (8) are formed at least two biconvex utmost point monomer structures by axially-aligned, stator shaft orientation magnetic conduction back iron (4) provides axial magnetic circuit for stator core (1), excitation winding (6) is wound on the stator shaft orientation magnetic conduction back iron (4) between the adjacent biconvex utmost point monomer structure, and armature winding (2) is wound on the tooth of stator core (1).
3. the mixed excitation biconvex pole motor T of an axial excitation, comprise stator core (1), armature winding (2), rotor core (3), stator shaft orientation magnetic conduction back iron (4), rotating shaft (5), permanent magnetic steel of axial magnetized (7) and the excitation winding of excitation (9) radially, it is characterized in that: by stator core (1), armature winding (2), rotor core (3) and radially the excitation winding of excitation (9) form at least two biconvex utmost point monomer structures by axially-aligned, stator shaft orientation magnetic conduction back iron (4) provides axial magnetic circuit for stator core (1), the stator shaft orientation magnetic conduction back iron (4) that the permanent magnetic steel of axial magnetized (7) is embedded between the adjacent biconvex utmost point monomer structure is located, and armature winding (2) is wound on the tooth of stator core (1).
4. according to the mixed excitation biconvex pole motor T of the arbitrary described axial excitation of claim 1 ~ 3, it is characterized in that: described armature winding (2) series connection coiling or coiling separately.
5. according to the mixed excitation biconvex pole motor T of the arbitrary described axial excitation of claim 1 ~ 3, it is characterized in that: stagger mutually angle or adopt flume structure of the rotor core (3) in described each biconvex utmost point monomer structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105604103A CN102005834B (en) | 2010-11-26 | 2010-11-26 | Hybrid excitation doubly salient motor adopting axial excitation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105604103A CN102005834B (en) | 2010-11-26 | 2010-11-26 | Hybrid excitation doubly salient motor adopting axial excitation |
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| CN102005834A true CN102005834A (en) | 2011-04-06 |
| CN102005834B CN102005834B (en) | 2012-10-31 |
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| CN2010105604103A Expired - Fee Related CN102005834B (en) | 2010-11-26 | 2010-11-26 | Hybrid excitation doubly salient motor adopting axial excitation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013007679A3 (en) * | 2011-07-12 | 2014-05-08 | Robert Bosch Gmbh | Electrical machine for a steering drive |
| CN104505961A (en) * | 2015-01-16 | 2015-04-08 | 山东理工大学 | Motor generator with external rotor |
| CN107707092A (en) * | 2017-08-22 | 2018-02-16 | 高纯军 | A kind of brushless AC generator and generation technology |
| CN113872406A (en) * | 2021-08-20 | 2021-12-31 | 南京航空航天大学 | Birotor axial hybrid excitation double salient pole motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1146767A1 (en) * | 1982-03-29 | 1985-03-23 | Eliazar Ya Bukhshtaber | Combined synchronous electric machine |
| CN1545189A (en) * | 2003-11-19 | 2004-11-10 | 南京航空航天大学 | Double salient pole mixed excitation motor |
| CN1743691A (en) * | 2005-09-26 | 2006-03-08 | 南京航空航天大学 | Low-loss mixed excitation internal rotor radial magnetic-suspension bearing |
| CN100370680C (en) * | 2006-06-26 | 2008-02-20 | 沈阳工业大学 | Mixing excitation permanent magnetic synchro generator |
| CN100454729C (en) * | 2005-04-11 | 2009-01-21 | 东南大学 | Bidirectional hybrid excitation brushless electric machine |
-
2010
- 2010-11-26 CN CN2010105604103A patent/CN102005834B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1146767A1 (en) * | 1982-03-29 | 1985-03-23 | Eliazar Ya Bukhshtaber | Combined synchronous electric machine |
| CN1545189A (en) * | 2003-11-19 | 2004-11-10 | 南京航空航天大学 | Double salient pole mixed excitation motor |
| CN100454729C (en) * | 2005-04-11 | 2009-01-21 | 东南大学 | Bidirectional hybrid excitation brushless electric machine |
| CN1743691A (en) * | 2005-09-26 | 2006-03-08 | 南京航空航天大学 | Low-loss mixed excitation internal rotor radial magnetic-suspension bearing |
| CN100370680C (en) * | 2006-06-26 | 2008-02-20 | 沈阳工业大学 | Mixing excitation permanent magnetic synchro generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013007679A3 (en) * | 2011-07-12 | 2014-05-08 | Robert Bosch Gmbh | Electrical machine for a steering drive |
| CN104505961A (en) * | 2015-01-16 | 2015-04-08 | 山东理工大学 | Motor generator with external rotor |
| CN107707092A (en) * | 2017-08-22 | 2018-02-16 | 高纯军 | A kind of brushless AC generator and generation technology |
| CN107707092B (en) * | 2017-08-22 | 2021-03-30 | 高纯军 | Brushless alternating-current generator and power generation technology |
| CN113872406A (en) * | 2021-08-20 | 2021-12-31 | 南京航空航天大学 | Birotor axial hybrid excitation double salient pole motor |
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| CN102005834B (en) | 2012-10-31 |
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