WO2009055956A1 - Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée - Google Patents

Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée Download PDF

Info

Publication number
WO2009055956A1
WO2009055956A1 PCT/CN2007/003063 CN2007003063W WO2009055956A1 WO 2009055956 A1 WO2009055956 A1 WO 2009055956A1 CN 2007003063 W CN2007003063 W CN 2007003063W WO 2009055956 A1 WO2009055956 A1 WO 2009055956A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
pole
phase
small
teeth
Prior art date
Application number
PCT/CN2007/003063
Other languages
English (en)
Chinese (zh)
Inventor
Tiecai Li
Yamei Qi
Zhaoyong Zhou
Xiang Kong
Weilong Lan
Feipeng Xu
Original Assignee
Shenzhen Academy Of Aerospace Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Academy Of Aerospace Technology filed Critical Shenzhen Academy Of Aerospace Technology
Priority to PCT/CN2007/003063 priority Critical patent/WO2009055956A1/fr
Priority to CN200780009121.0A priority patent/CN101371425B/zh
Publication of WO2009055956A1 publication Critical patent/WO2009055956A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors

Definitions

  • This invention relates to permanent magnet motors and, more particularly, to a square wave three phase brushless permanent magnet DC motor suitable for direct drive and position, rate servo control applications. Background technique
  • the permanent magnet motor can be divided into two major categories: sine wave and square wave according to the driving current and back electromotive waveform.
  • a sine wave permanent magnet motor is called a permanent magnet synchronous motor (PMSM), or a sine wave AC servo motor.
  • PMSM permanent magnet synchronous motor
  • BLDCM square wave brushless DC motor
  • square wave permanent magnet motors have been widely used.
  • the external characteristics of square wave permanent magnet motors are basically the same as those of brushed DC motors.
  • the control is relatively simple, but its biggest disadvantage is the existence of large principle commutation torque fluctuations.
  • the researchers proposed a variety of compensation measures, but the actual application results are not satisfactory.
  • the invention solves the problems existing in the existing square wave permanent magnet motor and the sine wave permanent magnet motor, and proposes a new principle, a new structure, a high performance and a low cost square wave permanent magnet motor.
  • the slot width of the slot is 0. 1 ⁇ 3.
  • the 12 teeth include three too teeth, three middle teeth and six small teeth;
  • the three-phase windings are concentrated windings, respectively wound around On the large and middle teeth, the arrangement order of the windings and teeth is: A-phase winding on the large tooth ⁇ small tooth, medium tooth, / C-phase winding, a small tooth, large tooth, B-phase winding, a small tooth, a middle tooth
  • the upper/A phase winding has a small tooth and a large tooth on the C phase winding and a small tooth ⁇ the middle tooth/B phase winding has a small tooth; its A represents a concentrated winding of the A phase winding, and /A represents an inverse of the A phase winding.
  • each large tooth on the stator core occupies a circumferential mechanical angle of 50° ⁇ 5°, that is, an electrical angle of 200 ° ⁇ 20 °; each middle tooth occupies a circumference of 40 ° ⁇ 5 ° mechanical angle , that is, 160 ° ⁇ 20 ° electrical angle; each small tooth occupies a circumference of 15 ° ⁇ 5 ° mechanical angle; wherein each tooth occupies a circumferential mechanical angle containing the notch width; and a large tooth, a middle tooth, and then Add the sum of the mechanical angles of the two small teeth equal to 120 °.
  • the N and S magnetic poles of the respective permanent magnets on the rotor core are arranged in phase, and the permanent magnets are radially magnetized tile-shaped magnetic steel or parallel magnetized tile-shaped magnetic steel.
  • the physical air gap between the stator and the rotor is preferably 0. 2 ⁇ 2mm.
  • a Hall position sensor can be used as the rotor position sensor, and the magnetic sensitive direction of the Hall position sensor is consistent with the normal direction of the rotor, and is mounted on the stator bracket and maintained between the permanent magnet and the outer circumference of the rotor. 3 ⁇ air gap.
  • the physical dimension of the pole pitch D/8 of the permanent magnet on the rotor core is preferably 10 to 56 mm, where D is the outer diameter of the rotor.
  • the stator core may be formed by multi-layer splicing of silicon steel sheets, and each layer of spliced silicon steel sheets is composed of three shapes of large, medium and small fan-shaped punching pieces; Fan-shaped punching film-small pole fan-shaped punching piece, middle pole fan-shaped punching piece, small pole fan-shaped punching piece, large pole fan-shaped punching piece, small pole fan-shaped punching piece, middle pole fan-shaped punching piece, small pole fan-shaped punching piece, large pole fan-shaped punching A small pole fan-shaped piece, a medium-pole fan-shaped piece and a small-pole fan-shaped piece are arranged in a plane to form a stator punching piece, that is, a layer of spliced silicon steel sheet; adjacent two sector-shaped punching pieces The splicing is performed by a groove/land provided on the outer side of the yoke.
  • a groove is arranged outside the yoke portion of the large and middle pole fan-shaped punching piece, and a boss is arranged outside the yoke portion of the small pole fan-shaped punching piece; or a boss is arranged outside the yoke portion of the large and middle pole fan-shaped punching piece,
  • a groove is provided outside the yoke of the small pole fan-shaped punch.
  • the plurality of silicon steel sheets are laminated into three shapes of sector-shaped teeth, and then the three kinds of teeth constitute the stator core; wherein the large teeth are formed by a large-pole fan-shaped sheet Pressed, the middle tooth pole is formed by laminating the middle pole fan-shaped punching piece, and the small tooth pole is formed by laminating the small pole fan-shaped punching piece; in each tooth pole, the yoke portion and the tooth portion of each fan-shaped punching piece Each has a positioning blind hole, and a plurality of fan-shaped punching pieces are riveted into an integral tooth pole by positioning blind holes; the three kinds of tooth poles are according to "A phase large tooth pole ⁇ small tooth pole ⁇ / C phase middle tooth pole 1 Small tooth pole ⁇ B phase large tooth pole a small tooth pole ⁇ A phase in the tooth pole a small tooth pole ⁇ C phase large tooth pole a small tooth pole / B phase in the tooth pole a small tooth pole" order into one Complete stator core.
  • the stator core is formed by multi-layered integral silicon steel sheets by riveting or riveting with rivets; each layer of the whole silicon steel sheet has three tooth shapes at the same time, three tooth shapes. Press "A phase large tooth a small tooth ⁇ / C phase medium tooth a small tooth - B phase large tooth a small tooth - A phase medium tooth a small tooth a C phase large tooth - small tooth one / B phase medium tooth ⁇ small The order of the teeth is arranged circumferentially.
  • the motor has only two concentrated windings per phase, which is simple in structure and low in production cost.
  • the output of the motor is 33% larger than that of the conventional sine wave permanent magnet servo motor, and the winding end is more than three times smaller than the conventional sine wave permanent magnet servo motor, so the copper consumption is greatly reduced.
  • the square wave three-phase brushless permanent magnet DC motor is driven by a three-phase square wave current, it can generate a stable torque, and its torque fluctuation index is equivalent to that of a sine wave permanent magnet servo motor.
  • FIG. 1 is a schematic view showing the structure of a stator and a rotor of a motor according to a preferred embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a motor assembly according to a preferred embodiment of the present invention
  • FIG 3 is a schematic view showing the angular distribution of the stator slots in the embodiment shown in Figure 1;
  • FIG. 4 is a schematic structural view of a stator punch formed by three fan-shaped punching sheets
  • Figure 5 is another embodiment of a stator punch formed from three fan-shaped punches
  • Figure 6 is another embodiment of a stator punch formed from three fan-shaped punches
  • Figure 7 is a schematic view of a multi-layer silicon steel sheet composed of three kinds of tooth poles, and then composed of a complete stator core;
  • Fig. 8 is a schematic view showing a complete stator core composed of a plurality of integral silicon steel sheets having three tooth shapes. detailed description
  • FIG. 1 A preferred embodiment of the invention is illustrated in Figures 1 and 2.
  • the general structure of the three-phase brushless permanent magnet DC motor can be seen from Fig. 2, the main components of which include the rotor 1, the stator 2, the rotating shaft 30, etc., and the physical air gap 5 between the rotor 1 and the stator 2 is 0. 2—2ram.
  • the Hall position sensor is used as the rotor position sensor, and the magnetic sensitive direction of the Hall position sensor is consistent with the normal direction of the rotor, and is mounted on the stator bracket 6 and kept between the outer circumference of the rotor magnet (ie, the permanent magnet). ⁇ 3mm air gap.
  • the permanent magnet 4 may be a radially magnetized tile-shaped magnetic steel or a parallel magnetized tile-shaped magnetic steel.
  • the physical dimension of the pole pitch of the permanent magnet on the rotor core is 10 to 56 let, where D is the outer diameter of the rotor.
  • the three-phase windings are concentrated windings, and the windings in the stator windings are directly wound around the insulation of the large and middle teeth.
  • the arrangement order of the windings and the teeth is: A-phase winding and a small tooth on the large teeth ⁇ Middle tooth / C phase winding a small tooth a large tooth on the B phase winding a small tooth ⁇ middle tooth / A phase winding a small tooth a large tooth on the C phase winding ⁇ small tooth one medium tooth / B phase winding a small tooth;
  • A represents a concentrated winding of the A-phase winding
  • /A represents a reverse-connected concentrated winding of the A-phase winding;
  • B represents a concentrated winding of the B-phase winding, and /B represents a reverse-connected concentrated winding of the B-phase winding
  • C represents a concentrated winding of the C-phase winding, and /C represents a reverse-connected concentrated winding of the C-phase winding.
  • the two concentrated windings of each phase are wound in series, which reduces the wiring and simplifies the process. It can be seen that the motor has only two concentrated windings per phase, and the three-phase motor has only six concentrated windings. The total number of windings of the motor is very small, which greatly simplifies the structure of the motor and reduces the cost, and the winding end is reduced to the conventional motor. /3 ⁇ 1/6 even More, it has been minimized, and copper consumption has dropped dramatically.
  • each large tooth of the stator core 2 occupies a circumference of 50° ⁇ 5° mechanical angle, and since it is 4 pairs of magnetic stages, that is, 4X360° electrical angle, each large tooth occupies 200° ⁇ 20° Angle, the concentrated winding is wider than 180° electrical angle, completely covering the pole pitch, that is, by artificially increasing the winding pitch, thereby collecting more air gap flux to achieve the purpose of square wave.
  • Each middle tooth occupies a circumference of 40° ⁇ 5 .
  • the mechanical angle, ie 160 ° ⁇ 20 ° electrical angle, the concentrated winding is wider than 120 ° electrical angle.
  • Each of the small teeth occupies a circumferential angle of 15° ⁇ 5°, but does not have a winding; wherein the circumferential mechanical angle of each of the teeth is a slot width (0. l ⁇ 3mm).
  • the ratio of the circumference of the three teeth is: large teeth 50° ⁇ 5°, medium teeth 40° ⁇ 5°, small teeth 15° ⁇ 5°, and one large tooth + one middle tooth + two small teeth
  • the total mechanical angle is equal to 120°.
  • the mechanical angle of the large, middle and small teeth may be 50°, 40°, 15°, or 48°, 42°, 15°, or 52°, 40°, 14°, or Other combinations of angles that meet the above requirements.
  • the comparison shows that the positioning torque is reduced by nearly 10 times.
  • This large, medium and small tooth structure greatly reduces the positioning torque and overcomes the most deadly shortcoming of the traditional square wave permanent magnet DC motor, even better than the sine wave. Permanent magnet DC motor.
  • the international application number is PCT/CN2007/000178, and the name is "brushless DC motor control system and its control method".
  • the control system and method disclosed in the patent of the patent drive control in which a new square wave brushless motor continuous current sampling and closed-loop control is adopted, and its comprehensive performance exceeds the sine wave AC servo system, and the torque fluctuation index is equivalent, but the output is improved 33 %, copper consumption has dropped significantly.
  • the three-phase brushless permanent magnet DC motor of the invention can replace the existing sine wave AC servo motor and its servo unit, and becomes the main branch of the future servo motor and its servo unit.
  • the stator core 2 is formed by laminating and laminating a plurality of layers of spliced silicon steel sheets 7, wherein each layer of spliced silicon steel sheets is composed of three types of punching sheets, specifically large, medium and small. Extreme fan-shaped punch.
  • the outer side of the yoke of the large pole fan-shaped punching piece 8 has two grooves
  • the outer side of the yoke portion of the middle pole fan-shaped punching piece 9 also has two grooves
  • the outer side of the yoke portion of the small pole fan-shaped punching piece 10 has two bosses, and the convex portion
  • the table can be inserted into the aforementioned groove and seamed.
  • the arrangement is as follows: a large pole fan-shaped punching piece, a small pole fan-shaped punching piece, a middle pole fan-shaped punching piece, a small pole fan-shaped punching piece, a large pole fan-shaped punching piece, a small pole fan-shaped punching piece, a middle pole fan shape
  • stator punching piece that is, A layer of spliced silicon steel sheet, multi-layer spliced silicon steel sheet can be obtained from a riveted laminated core to obtain a complete stator core.
  • the stator punching piece shown in FIG. 5 can also be used, which also includes a large pole fan-shaped punching piece 8, a middle pole fan-shaped punching piece 9, and a small pole fan-shaped punching piece 10; in FIG. 4, a small pole fan-shaped punching piece
  • the outer side has an arc-shaped extension arm, and in Fig. 5, the outer pole fan-shaped piece and the middle-pole fan-shaped piece have an arc-shaped extension arm on the outer side.
  • the stator punches with different positions of the grooves and the bosses may be selected and laminated to form one stator as a whole.
  • a plurality of layers of silicon steel sheets are laminated into three shapes of sector-shaped tooth poles to form a stator core; a large tooth pole is formed by laminating a large-pole fan-shaped punching piece 1 1 , and a fan-shaped punch is formed.
  • the yoke portion and the tooth portion of the sheet each have a positioning blind hole 12, and are riveted into an integral tooth pole by positioning the blind hole;
  • the middle tooth pole is formed by laminating the middle pole fan-shaped punching piece 13, the yoke portion and the tooth of the fan-shaped punching piece
  • Each of the portions has a positioning blind hole 14 and is riveted into an integral tooth pole by positioning the blind hole;
  • the small tooth pole is formed by laminating the small pole fan-shaped punching piece 16 , and the yoke portion of the fan-shaped punching piece has a positioning on each side and the tooth portion
  • the blind hole 15 is riveted into an integral tooth pole by positioning the blind hole.
  • Each tooth pole is in accordance with "A phase large tooth pole, small tooth pole ⁇ / C phase, tooth tip, small tooth pole ⁇ B phase large tooth pole, small tooth pole ⁇ A phase, middle tooth, small tooth pole ⁇ C phase large tooth The sequence of a very small tooth pole / B phase in the tooth pole and a small tooth pole" A complete stator core.
  • each layer of silicon steel sheet is a complete stator sheet, that is, an integral silicon steel sheet 17, which contains three tooth shapes, three types of teeth according to A phase large teeth and one small tooth one / C Phase tooth small tooth ⁇ B phase large tooth ⁇ small tooth - A phase medium tooth ⁇ small tooth ⁇ C phase large tooth and small tooth ⁇ / B phase medium tooth small tooth ⁇ sequential circumferential arrangement;
  • the integral silicon steel sheet can be obtained by self-riveting or riveting together with a rivet to obtain a complete stator core.
  • a blind hole 18 for achieving riveting is provided on each of the entire silicon steel sheets.
  • the corresponding three-phase concentrated winding is wound directly on the insulation of the large and middle teeth by the winding in the stator winding, and is wound in the following order: A phase large tooth pole / A phase middle tooth pole; B phase large tooth pole One/B phase middle tooth pole; C phase large tooth pole one / C phase middle tooth pole, so that two concentrated windings of each phase are wound in series by winding, which reduces wiring and simplifies the process.
  • the square wave three-phase brushless permanent magnet DC motor of the invention has a series of advantages such as minimizing winding end, minimizing air gap, minimizing material, minimizing positioning torque and minimizing loss, and having higher power/volume ratio And the torque/volume ratio, the cost is minimized.
  • Its controller can adopt the new concept of square wave brushless motor continuous current sampling and closed-loop control, and its comprehensive performance exceeds the sine wave AC servo system.
  • the square wave three-phase brushless permanent magnet DC motor can replace the existing sine wave AC servo motor and its servo unit, and become the main branch of the future servo motor and its servo unit. '

Abstract

L'invention porte sur un moteur à courant continu (CC) à aimant permanent sans balai triphasé à onde carrée. Le nombre des pôles magnétiques sur le noyau de fer du rotor (1) du moteur est : 2P = 8. Le nombre des encoches (21) dans le noyau de fer du stator (2) du moteur est : Z = 12. Le noyau de fer du stator (2) comprend trois grandes dents, trois dents de taille moyenne et six petites dents. La somme des angles mécaniques d'une grande dent, d'une dent de taille moyenne et de deux petites dents est de 120 degrés. Des enroulements concentrés triphasés sont enroulés autour des grandes dents et des dents de taille moyenne séparément. Les enroulements de chaque phase ont seulement deux enroulements concentrés. Le moteur a seulement six enroulements concentrés.
PCT/CN2007/003063 2007-10-29 2007-10-29 Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée WO2009055956A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2007/003063 WO2009055956A1 (fr) 2007-10-29 2007-10-29 Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée
CN200780009121.0A CN101371425B (zh) 2007-10-29 2007-10-29 方波三相无刷永磁直流电动机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/003063 WO2009055956A1 (fr) 2007-10-29 2007-10-29 Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée

Publications (1)

Publication Number Publication Date
WO2009055956A1 true WO2009055956A1 (fr) 2009-05-07

Family

ID=40414047

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003063 WO2009055956A1 (fr) 2007-10-29 2007-10-29 Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée

Country Status (2)

Country Link
CN (1) CN101371425B (fr)
WO (1) WO2009055956A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106655555A (zh) * 2016-10-13 2017-05-10 国网冀北电力有限公司技能培训中心 三相铁心式无线传能用径向旋转变换器
CN114123552A (zh) * 2021-11-27 2022-03-01 西安磁林电气有限公司 一种六相无槽方波电机

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8975799B2 (en) 2009-08-12 2015-03-10 Shenzhen A&E Servo Motor Technology Co., Ltd. Broad-pole type square-wave three-phase brushless permanent magnet direct current motor and assembling method thereof
FI122849B (fi) * 2009-11-10 2012-07-31 Metso Paper Inc Telakäyttö, tela ja menetelmä
CN102263445B (zh) * 2010-05-31 2016-07-06 德昌电机(深圳)有限公司 无刷电机
WO2012119303A1 (fr) * 2011-03-07 2012-09-13 浙江博望科技发展有限公司 Servomoteur à aimants permanents triphasé
CN103222156B (zh) * 2011-03-07 2015-11-25 浙江博望科技发展有限公司 一种铁氧体三相永磁电机
WO2012119307A1 (fr) * 2011-03-09 2012-09-13 浙江博望科技发展有限公司 Servomoteur à aimants permanents triphasé
CN102364820B (zh) * 2011-10-17 2013-12-25 黄石艾博科技发展有限公司 一种压缩机交流电机定子铁芯及其嵌线方法
CN102780432A (zh) * 2012-08-20 2012-11-14 沈阳永磁电机制造有限公司 一种可替代z4系列电机的多相永磁无刷直流方波电动机
DE102016219051A1 (de) * 2016-09-30 2018-04-05 Robert Bosch Gmbh Elektromotor zum Antrieb eines ABS-Systems
JP2019187047A (ja) * 2018-04-06 2019-10-24 マブチモーター株式会社 モータ
CN111216863A (zh) * 2020-03-02 2020-06-02 熊鸿 基于无刷直流电机/发电机的船舶直流电力推进系统
WO2024000243A1 (fr) * 2022-06-29 2024-01-04 罗伯特·博世有限公司 Noyau de stator segmenté, moteur et procédé de fabrication d'ensemble stator de moteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11234990A (ja) * 1998-02-12 1999-08-27 Okuma Corp 永久磁石モータ
CN2389440Y (zh) * 1999-09-09 2000-07-26 机械工业部广州电器科学研究所 多极分数槽绕组无刷直流电动机
CN2726200Y (zh) * 2004-08-24 2005-09-14 印辉 环形绕线式塑封电机定子冲片
CN1862928A (zh) * 2006-06-09 2006-11-15 天津大学 模块化定子结构低速直流无刷电动机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2389400Y (zh) * 1999-07-20 2000-07-26 李兵 实体地面模型块

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11234990A (ja) * 1998-02-12 1999-08-27 Okuma Corp 永久磁石モータ
CN2389440Y (zh) * 1999-09-09 2000-07-26 机械工业部广州电器科学研究所 多极分数槽绕组无刷直流电动机
CN2726200Y (zh) * 2004-08-24 2005-09-14 印辉 环形绕线式塑封电机定子冲片
CN1862928A (zh) * 2006-06-09 2006-11-15 天津大学 模块化定子结构低速直流无刷电动机

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106655555A (zh) * 2016-10-13 2017-05-10 国网冀北电力有限公司技能培训中心 三相铁心式无线传能用径向旋转变换器
CN106655555B (zh) * 2016-10-13 2023-08-18 国网冀北电力有限公司技能培训中心 三相铁心式无线传能用径向旋转变换器
CN114123552A (zh) * 2021-11-27 2022-03-01 西安磁林电气有限公司 一种六相无槽方波电机
CN114123552B (zh) * 2021-11-27 2023-12-26 西安磁林电气有限公司 一种六相无槽方波电机

Also Published As

Publication number Publication date
CN101371425B (zh) 2011-05-04
CN101371425A (zh) 2009-02-18

Similar Documents

Publication Publication Date Title
WO2009055956A1 (fr) Moteur à courant continu à aimant permanent sans balai triphasé à onde carrée
CN201118414Y (zh) 方波三相无刷永磁直流电动机
CN101056027B (zh) 非对称交错混合励磁同步电动机
CN103222165B (zh) 三相永磁伺服电动机
CN109217596A (zh) 一种永磁无刷双转子电机
US8975799B2 (en) Broad-pole type square-wave three-phase brushless permanent magnet direct current motor and assembling method thereof
CN101018002A (zh) 小型三相高性能方波永磁直流低速无刷电机
CN110034649B (zh) 一种轴向磁场磁通切换式横向磁通永磁电机
CN115001229A (zh) 一种整距绕组轴向磁通开关磁阻电机及其多目标优化方法
CN107171520B (zh) 轴向永磁辅助磁阻型复合转子高速电机及其控制方法
CN101557150A (zh) 无铁芯永磁同步直驱风力发电机
CN201018373Y (zh) 混合励磁同步电动机
CN105978275A (zh) 环向叠加磁路开关磁阻直流电动机
WO2013170672A1 (fr) Moteur à enroulement concentré, générateur et moteur électrique
CN209358404U (zh) 一种轴向磁场磁通切换式横向磁通永磁电机
CN113949245A (zh) 一种空间磁阻双凸极励磁风力发电机
CN208539666U (zh) 单相无刷电机定子铁芯
CN112165231A (zh) 一种互补型轴向气隙磁通永磁开关磁阻电机
CN205319909U (zh) 环向叠加磁路开关磁阻直流电动机
WO2011029230A1 (fr) Moteur à courant continu, sans balai et à aimant permanent, comportant une structure à grande et petite denture, et procédé d'assemblage associé
CN210183204U (zh) 一种错位双转子磁通切换型永磁电机及发电设备
CN113659789B (zh) 一种内外定子轴向磁场磁通切换型混合永磁电机
CN114629319B (zh) 一种双定子混合磁极磁轴偏移电机
WO2011029235A1 (fr) Moteur triphasé de grand diamètre, à courant continu, sans balai et à onde carrée, et procédé d'assemblage associé
CN218733792U (zh) 一种双转子同步磁阻电机

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200780009121.0

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07816676

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC

122 Ep: pct application non-entry in european phase

Ref document number: 07816676

Country of ref document: EP

Kind code of ref document: A1