CN102801268A - Low-inductance low loss PMSM - Google Patents
Low-inductance low loss PMSM Download PDFInfo
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- CN102801268A CN102801268A CN2012102687546A CN201210268754A CN102801268A CN 102801268 A CN102801268 A CN 102801268A CN 2012102687546 A CN2012102687546 A CN 2012102687546A CN 201210268754 A CN201210268754 A CN 201210268754A CN 102801268 A CN102801268 A CN 102801268A
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Abstract
一种低电感低损耗永磁同步电机，涉及一种新结构的低电感低损耗永磁同步电机的技术领域。为解决现有技术电机由于产生电感过高而不利于电机高转速运行，并因此产生铁心材料磁饱和从而增大铁心损耗。本发明提供一种低电感低损耗永磁同步电机，包括转轴(1)、永磁转子(2)、定子(3)、上端盖(4)、下端盖(5)、轴承(6)、壳体(7)，永磁转子(2)包括转子铁心(21)和永磁体(22)，定子(3)包括定子铁心(31)，定子铁心(31)上径向缠绕单相或多相定子绕组(32)，定子绕组(32)为环向排列，定子绕组(32)中每相绕组包括一对或多对相邻的两个线圈，相邻的两个线圈相距为一个极距且缠绕方向相反。本发明可应用于多种不同飞轮储能场合。
A low-inductance and low-loss permanent magnet synchronous motor relates to the technical field of a new structure low-inductance and low-loss permanent magnet synchronous motor. In order to solve the problem that the motor in the prior art has too high inductance, which is not conducive to the high-speed operation of the motor, and thus generates magnetic saturation of the core material to increase the core loss. The invention provides a low-inductance and low-loss permanent magnet synchronous motor, comprising a rotating shaft (1), a permanent magnet rotor (2), a stator (3), an upper end cover (4), a lower end cover (5), a bearing (6), and a shell body (7), the permanent magnet rotor (2) includes a rotor core (21) and a permanent magnet (22), the stator (3) includes a stator core (31), and a single-phase or multi-phase stator is radially wound on the stator core (31) Windings (32), stator windings (32) are arranged circumferentially, and each phase winding in the stator windings (32) includes one or more pairs of adjacent two coils, and the distance between adjacent two coils is a pole pitch and wound in the opposite direction. The invention can be applied to many different flywheel energy storage occasions.
Description
Technical field
A kind of low inductance low consumption permanent magnetism synchronous machine of the present invention relates to a kind of technical field of low inductance low consumption permanent magnetism synchronous machine of new construction.
Background technology
Energy problem is 21 century one of human key subjects that faced, when continually developing new forms of energy, in order more effectively to utilize advanced power-saving technology and the energy storage technology of existing energy needs development.In that flywheel energy storage among the energy storage technology is high with energy density, power density is big, energy conversion rate is high (about more than 90%), long service life, charging interval are short, adapt to various environment, can repeat deep discharge; Safeguard that simply it also is the focus of Recent study that advantages such as environmental protection have the while that has a extensive future.Wherein motor/generator is its core component of accomplishing power conversion, also is the key that realizes mechanical energy and electric energy conversion.Just because of the These characteristics of flywheel makes fly wheel system very high to the dynamoelectric machine system requirements; Need fly-wheel motor to have the higher speed of service; The range of speeds of broad, extremely low no-load loss, characteristics such as high conversion rate; The problem that generally runs at present is owing to produce that inductance is too high to be unfavorable for the high rotating speed operation of motor, thereby and therefore produces core material magnetic saturation increase core loss.
Summary of the invention
Move owing to producing the too high high rotating speed of motor that is unfavorable for of inductance for solving the prior art motor; Therefore thereby and produce the core material magnetic saturation and increase core loss; The present invention provides a kind of low inductance low consumption permanent magnetism synchronous machine, and this motor comprises rotating shaft, p-m rotor, stator, upper end cover, bottom end cover, bearing, housing, it is characterized in that said p-m rotor comprises rotor core and permanent magnet; Permanent magnet comprises a plurality of N, the S utmost point; Said N, the S utmost point are staggered or same polarity disposes in opposite directions, and permanent magnet places the rotor core surface or is built among the rotor core, and said stator comprises stator core; Radially twine single-phase or multi phase stator winding in the stator core; Stator winding is that hoop is arranged, and every phase winding comprises one or more pairs of two adjacent coils in the stator winding, and two adjacent coils apart are that a pole span and winding direction are opposite.
Referring to Fig. 9 operation principle of the present invention is described:
As shown in Figure 9, permanent magnet is placed under the coil considering bifilar winding split, and the supposition permanent magnet moves to left.If loop A B and A1B1 are closed; Then in coil AB, produce the electric current of A, and in iron core, produce magnetic flux (left dotted arrow among the figure) from left to right, in coil A1B1, produce the electric current of A1 to the B1 direction to the B direction; And in iron core, produce magnetic flux (figure right-of-center in political views dotted arrow) from right to left; If the B in two coils end and B1 end are joined then in new coil AA1 the sense of current from A to A1, and the total magnetic flux of loop A A1 reduces greatly owing to cancel each other, and then makes that loop A A1 inductance is extremely low; Iron core can not produce saturated phenomenon owing to electric current among the loop A A1 increases simultaneously, thereby has reduced core loss.The principle of this moment is similar to the generating state of permagnetic synchronous motor, and therefore design has feasibility based on the low iron loss magneto of the low inductance on this principle.
The invention has the beneficial effects as follows and propose a kind of low inductance low consumption permanent magnetism synchronous machine; Make the magnetic flux that produces by electric current in the armature effectively offset through reasonable disposition winding and design magnetic structure, can obtain extremely low inductance on the one hand and make motor be easier to high rotating speed operation; Thereby can reduce the core material magnetic saturation on the other hand and obtain extremely low core loss.The scheme that the present invention proposes helps to improve flywheel energy storage system and use high rotating speed, low-loss, and the performance of high efficiency electric has important theory value and realistic meaning to the research and development of the low inductance low consumption permanent magnetism synchronous machine of this new construction.
Description of drawings
Fig. 1 is the axial sectional structure sketch map of the motor of embodiment one; Fig. 2 is the sectional structure sketch map along A-A direction among Fig. 1 of the motor of embodiment one; Fig. 3 is the winding syndeton sketch map of the motor of embodiment one; Fig. 4 is motor and structural representation Fig. 2 co-located of embodiment two; Fig. 5 be embodiment three the structural representation of motor; Fig. 6 is the sectional structure sketch map of B-B direction of the motor of execution mode three; Fig. 7 is the sectional structure sketch map of C-C direction of the motor of execution mode three, and Fig. 8 is the structural representation of the motor of embodiment four.Fig. 9 is an operation principle sketch map of the present invention.
Embodiment
Specify execution mode of the present invention below in conjunction with Fig. 1 to Fig. 8.
Embodiment one: like Fig. 1, shown in Figure 2; A kind of low inductance low consumption permanent magnetism synchronous machine comprises rotating shaft 1, p-m rotor 2, stator 3, upper end cover 4, bottom end cover 5, bearing 6, housing 7, it is characterized in that said p-m rotor 2 comprises rotor core 21 and permanent magnet 22; Permanent magnet 22 comprises a plurality of N, the S utmost point; Said N, the S utmost point are staggered or same polarity disposes in opposite directions, and permanent magnet 22 places rotor core 21 surfaces or is built among the rotor core 21, and said stator 3 comprises stator core 31; Radially twine single-phase or multi phase stator winding 32 in the stator core 31; Stator winding 32 is arranged for hoop, and every phase winding comprises one or more pairs of two adjacent coils in the stator winding 32, and two adjacent coils apart are that a pole span and winding direction are opposite.Stator core 31 is to be formed by silicon steel plate packing, and stator core 31 is the donut structure, and stator core 31 can be a notching construction.
As shown in Figure 3.When motor uses as motor, pass to electric current in the winding, perhaps use when electric current is sent in load as generator; The flow direction that armature supply produces in armature core under the opposed polarity is opposite; If opposed polarity coil down has the identical number of turn, the magnetic flux equal and opposite in direction of generation and in the opposite direction then, and then the magnetic flux that armature supply produces in this phase winding is cancelled out each other; The total magnetic flux that armature supply produces at armature core under the ideal situation is zero, can obtain extremely low every phase inductance.Thereby armature core can not produce the saturated loss that reduces stator core effectively owing to the increase of electric current under the situation of load variations simultaneously.
Embodiment two: as shown in Figure 4; This execution mode is that with execution mode one difference p-m rotor 2 comprises inside and outside two rotors; Internal rotor comprises internal rotor unshakable in one's determination 211 and internal rotor permanent-magnetic body 221; External rotor comprises external rotor unshakable in one's determination 212 and external rotor permanent magnet body 222, and inner and outer rotors has identical number of poles, and stator 3 is between internal rotor and external rotor.Stator winding is identical with execution mode one, and this execution mode utilizes stator internal layer and outer winding can effectively improve motor torque except that the characteristics with execution mode one simultaneously.
Embodiment three: like Fig. 5, Fig. 6, shown in Figure 7; This execution mode is that with above execution mode difference rotor core 21 is disk structure; Stator 3 is axial arranged with rotor 2, and stator core 31 is rolled by silicon steel sheet and forms, and stator core 31 is the donut structure.It is identical with execution mode one to be equipped with stator winding 32 its canoes and arranging rule in the stator core.Rotor field and stator current interact and produce torque, and the arrangement mode of winding makes motor have extremely low inductance and lower core loss simultaneously.
Embodiment four: as shown in Figure 8, this execution mode is that with execution mode three differences motor p-m rotor 2 quantity are a plurality of, axially connects between all p-m rotors 2, between per two adjacent p-m rotors 2 stator 3 is set.Remove right ends portion place's rotor single face and stator effect; Center roller interacts with the stator on its both sides respectively; The bilateral also while of stator winding interacts with the rotor field on both sides; Each unit is identical with execution mode three, and different units axially connects to satisfy different power demand and different torque-demands, and this execution mode possesses the advantage of execution mode one simultaneously.
Claims (6)
1. one kind low inductance low consumption permanent magnetism synchronous machine; Comprise rotating shaft (1), p-m rotor (2), stator (3), upper end cover (4), bottom end cover (5), bearing (6), housing (7); It is characterized in that said p-m rotor (2) comprises rotor core (21) and permanent magnet (22), permanent magnet (22) comprises a plurality of N, the S utmost point, and said N, the S utmost point are staggered or same polarity disposes in opposite directions; Permanent magnet (22) places rotor core (21) surface or is built among the rotor core (21); Said stator (3) comprises stator core (31), radially twines single-phase in the stator core (31) or multi phase stator winding (32), and stator winding (32) is arranged for hoop; Every phase winding comprises one or more pairs of two adjacent coils in the stator winding (32), and two adjacent coils apart are that a pole span and winding direction are opposite.
2. low inductance low consumption permanent magnetism synchronous machine as claimed in claim 1, it is characterized in that: said stator core (31) is to be formed by silicon steel plate packing, stator core (31) is the donut structure.
3. low inductance low consumption permanent magnetism synchronous machine as claimed in claim 2, it is characterized in that: said stator core (31) is a notching construction.
4. low inductance low consumption permanent magnetism synchronous machine as claimed in claim 1; It is characterized in that: said p-m rotor (2) comprises inside and outside two rotors; Internal rotor comprises internal rotor (211) and internal rotor permanent-magnetic body (221) unshakable in one's determination; External rotor comprises external rotor (212) and external rotor permanent magnet body (222) unshakable in one's determination, and inner and outer rotors has identical number of poles, and stator (3) is between internal rotor and external rotor.
5. low inductance low consumption permanent magnetism synchronous machine as claimed in claim 1; It is characterized in that: said rotor core (21) is disk structure; Stator (3) is axial arranged with rotor (2), and stator core (31) is rolled by silicon steel sheet and forms, and stator core (31) is the donut structure.
6. low inductance low consumption permanent magnetism synchronous machine as claimed in claim 5; It is characterized in that: said p-m rotor (2) quantity is a plurality of; Axially connect between all p-m rotors (2), a stator (3) is set between per two adjacent p-m rotors (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102687546A CN102801268A (en) | 2012-07-31 | 2012-07-31 | Low-inductance low loss PMSM |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102687546A CN102801268A (en) | 2012-07-31 | 2012-07-31 | Low-inductance low loss PMSM |
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| CN102801268A true CN102801268A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102687546A Pending CN102801268A (en) | 2012-07-31 | 2012-07-31 | Low-inductance low loss PMSM |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450208A (en) * | 2018-12-22 | 2019-03-08 | 山东唐骏欧铃汽车制造有限公司 | A kind of modularization automobile drive electric motor |
| RU2723297C1 (en) * | 2020-02-07 | 2020-06-09 | Олег Михайлович Тришин | Motor stator |
| CN113169682A (en) * | 2018-06-04 | 2021-07-23 | 瓦勒耶维奇·希契巴科夫·瓦迪姆 | Electric machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6175178B1 (en) * | 1999-10-21 | 2001-01-16 | Christopher N. Tupper | Low inductance electrical machine for flywheel energy storage |
| JP2007209199A (en) * | 1999-07-23 | 2007-08-16 | Matsushita Electric Ind Co Ltd | Electric motor |
| CN102185392A (en) * | 2011-04-22 | 2011-09-14 | 西安交通大学 | Magnetism-gathering disc type permanent magnet torque motor with fluid cooling function |
| CN102498645A (en) * | 2009-08-06 | 2012-06-13 | 松下电器产业株式会社 | Synchronous motor and system for driving synchronous motor |
-
2012
- 2012-07-31 CN CN2012102687546A patent/CN102801268A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007209199A (en) * | 1999-07-23 | 2007-08-16 | Matsushita Electric Ind Co Ltd | Electric motor |
| US6175178B1 (en) * | 1999-10-21 | 2001-01-16 | Christopher N. Tupper | Low inductance electrical machine for flywheel energy storage |
| CN102498645A (en) * | 2009-08-06 | 2012-06-13 | 松下电器产业株式会社 | Synchronous motor and system for driving synchronous motor |
| CN102185392A (en) * | 2011-04-22 | 2011-09-14 | 西安交通大学 | Magnetism-gathering disc type permanent magnet torque motor with fluid cooling function |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113169682A (en) * | 2018-06-04 | 2021-07-23 | 瓦勒耶维奇·希契巴科夫·瓦迪姆 | Electric machine |
| CN114598081A (en) * | 2018-06-04 | 2022-06-07 | 雷厉 | A winding of a motor stator |
| CN115085431A (en) * | 2018-06-04 | 2022-09-20 | 雷厉 | Motor rotor |
| CN113169682B (en) * | 2018-06-04 | 2024-12-27 | 雷厉 | Motor |
| CN109450208A (en) * | 2018-12-22 | 2019-03-08 | 山东唐骏欧铃汽车制造有限公司 | A kind of modularization automobile drive electric motor |
| RU2723297C1 (en) * | 2020-02-07 | 2020-06-09 | Олег Михайлович Тришин | Motor stator |
| WO2021158147A3 (en) * | 2020-02-07 | 2021-10-21 | Олег Михайлович ТРИШИН | Electric motor stator |
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Application publication date: 20121128 |