CN1302597C - Magnetic resistant electric motor with double stator switch - Google Patents

Magnetic resistant electric motor with double stator switch Download PDF

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Publication number
CN1302597C
CN1302597C CN 200510037635 CN200510037635A CN1302597C CN 1302597 C CN1302597 C CN 1302597C CN 200510037635 CN200510037635 CN 200510037635 CN 200510037635 A CN200510037635 A CN 200510037635A CN 1302597 C CN1302597 C CN 1302597C
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CN
China
Prior art keywords
stator
rotor
phase
torque pulsation
core
Prior art date
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CN 200510037635
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Chinese (zh)
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CN1645712A (en
Inventor
朱德明
严仰光
孟小利
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南京航空航天大学
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Application filed by 南京航空航天大学 filed Critical 南京航空航天大学
Priority to CN 200510037635 priority Critical patent/CN1302597C/en
Publication of CN1645712A publication Critical patent/CN1645712A/en
Application granted granted Critical
Publication of CN1302597C publication Critical patent/CN1302597C/en

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Abstract

The present invention relates to a magnetic resistant motor with double stator switches, which comprises a stator and a rotator which are both stacked into a salient pole type tooth slot structure by silicon steel sheets. The present invention is characterized in that a stator core and a rotor core are both composed of two sections, and the lengths of two sections of each of the stator core and the rotor core are the same. The two sections of the rotor cone and the stator core are installed in an electrical degree with 180/ phase number degree. No winding is arranged on the rotor, stator teeth are separately sheathed with two sets of concentrated armature windings, the two armature windings on teeth with the same phase of each set of windings are connected in series or in parallel and form a phase. The produced torque pulsation is the synthesis of torque pulsation produced by the left section of the motor and the torque pulsation produced by the right section of the motor; the synthesis torque is added, the amplitude of the torque pulsation is lowered, and the frequency is enhanced by one time.

Description

Magnetic resistant electric motor with double stator switch

Technical field

Magnetic resistant electric motor with double stator switch of the present invention belongs to the brshless DC motor of electric machinery.

Background technology

Switched reluctance machines is structure one of the simplest motor, has broad application prospects.This motor can be divided into by the number of phases: (1) single-phase switch reluctance machine; (2) two-phase switched reluctance machines; (3) threephase switch reluctance motor; (4) four phase switch reluctance motors; (5) heterogeneous switched reluctance machines.Wherein 8/6 structure applications is very wide mutually with four for three-phase 6/4 structure.Its traditional torque control strategy has: the control of (1) current chopping; (2) angle position control.Because the switched reluctance machines rotor all is a salient-pole structure, and the number of teeth is less, slot effect is obvious, and existing switched reluctance machines all has the big shortcoming of torque pulsation, and its application is restricted.

At present, Chinese scholars mainly is devoted to come up from control torque pulsation inhibited, adopt comprise that torque is level and smooth, methods such as torque distribution and artificial intelligence, more or less all have certain defective but implement.Structurally, Mehdi moallem and Tsing-Hua University extensively are optimized the flute profile of switching magnetic-resistance in celebrating, reduce torque pulsation by the facewidth that improves rotor, and an approach that reduces torque pulsation is provided.

Summary of the invention

The objective of the invention is to propose a kind of novel switched reluctance motor that structurally can reduce torque pulsation.

Magnetic resistant electric motor with double stator switch of the present invention is made of stator, rotor, rotor-position sensor and other annexes.Its stator and rotor iron core is by two sections compositions, and two iron leg core appearance together.Tooth alignment that can rotor two iron leg cores, the tooth of the stator two iron leg cores 180/m degree electrical degree that staggers; Tooth alignment that also can stator two iron leg cores, the tooth of the rotor two iron leg cores 180/m degree electrical degree (as three-phase 6/4 structure time be 15 degree mechanical angles) that staggers.Be with the identical number of turn on two sections stators respectively and concentrate armature winding.Two cover armature winding link to each other with external power conversion circuit respectively, and when doing motor work, two groups of electric currents differ 180/m degree electrical degree and are input in the armature winding, and the torque that two parts produce superposes mutually, can effectively reduce torque pulsation, and wherein m is the number of phases.

For three-phase 6/4 or 12/8 structure magnetic resistant electric motor with double stator switch, tooth alignment that can rotor two iron leg cores, the tooth of the stator two iron leg cores 60 degree electrical degrees that stagger; Tooth alignment that also can stator two iron leg cores, the tooth of the rotor two iron leg cores 60 degree electrical degrees that stagger.When doing motor work, two groups of electric currents differ 60 degree electrical degrees and are input in the armature winding, and the torque that two parts produce superposes mutually, can effectively reduce torque pulsation.

For four 8/6 or 16/12 structure magnetic resistant electric motor with double stator switch mutually, the stator of its two iron legs core or the rotor 45 degree electrical degrees that stagger are installed, and two groups of electric currents differ 45 degree electrical degrees and are input in the armature winding, can obtain low torque pulsation.

The present invention's major technique characteristics compared with prior art are, structurally switched reluctance machines is improved, electric machine rotor is divided into two sections, stator or the rotor 180/m degree electrical degree that staggers, two sections stators respectively have a cover armature winding, two covers are identical in the windings to pass to the electric current that phase place differs 180/m degree electrical degree mutually, motor torque ripple is reduced, wherein m---the number of phases of motor.

Description of drawings

Fig. 1 is an axial cross section schematic diagram of the present invention;

Fig. 2 is three-phase 6/4 a structure radial section schematic diagram of the present invention; Wherein left side figure is a left side section sectional view, and right figure is right section sectional view.

Fig. 3 is three-phase 6/4 of the present invention or 12/8 armature winding connected mode and angle position control mode power tube conducting rule schematic diagram;

Fig. 4 is a reduction torque pulsation principle schematic of the present invention.

Designation among the above-mentioned figure:

The number of phases of m---motor;

The rotor number of teeth of Zr---magnetic resistant electric motor with double stator switch;

A 3-X 3, B 3-Y 3, C 3-Z 3---three phase windings on the section stator of a magnetic resistant electric motor with double stator switch left side;

L A3-X3, L B3-Y3, L C3-Z3---the self-induction of three phase windings on the section stator of a magnetic resistant electric motor with double stator switch left side;

i A3-X3, i B3-Y3, i C3-Z3---the electric current of three phase windings on the section stator of a magnetic resistant electric motor with double stator switch left side;

A 4-X 4, B 4-Y 4, C 4-Z 4---three phase windings on the right section of the magnetic resistant electric motor with double stator switch stator;

L A4-X4, L B4-Y4, L C4-Z4---the self-induction of three phase windings on the right section of the magnetic resistant electric motor with double stator switch stator;

i A4-X4, i B4-Y4, i C4-Z4---the electric current of three phase windings on the right section of the magnetic resistant electric motor with double stator switch stator.

Embodiment

Because the magnetic resistant electric motor with double stator switch operation principle of the different numbers of phases is similar, is example with three-phase 6/4 structure magnetic resistant electric motor with double stator switch only below, sets forth structure of the present invention and reduce the torque pulsation principle.

The stator and rotor iron core of magnetic resistant electric motor with double stator switch of the present invention is by two sections compositions, two iron leg core appearance with, as Fig. 1 and shown in Figure 2 be three-phase 6/4 structure magnetic resistant electric motor with double stator switch structural representation.Stator 1,2 and rotor 3,4 form by silicon steel plate stacking, and are salient-pole structure.Three phase electric machine is that (N is a positive integer 1,2,3,4 to 6N/4N ...) structure, i.e. stator number of teeth 6N, the rotor number of teeth is 4N.As N=1, be three-phase 6/4 structure; N=2 is 12/8 structure etc.Do not have winding on the rotor, be set with two covers on the stator tooth and concentrate armature winding 5,6.Rotor or the stator two iron leg cores 60 degree electrical degrees that stagger, Fig. 2 provides the rotor two iron leg cores 60 degree electrical degree schematic diagrames that stagger.

The mode of connection of magnetic resistant electric motor with double stator switch stator armature winding of the present invention is shown in Fig. 3 (a), and armature windings in series or formation one phase in parallel are formed the A on the section stator of a left side on two teeth of same phase 3-X 3, B 3-Y 3, C 3-Z 3With the A on the right section stator 4-X 4, B 4-Y 4, C 4-Z 4Two covers, three phase windings, two each phase phase shaft space position consistency of cover winding, winding is through the power inverter parallel connection.

The phase inductance of magnetic resistant electric motor with double stator switch armature winding of the present invention, different with the position change of rotor.When the tooth of rotor entered a certain phase stator tooth, this phase self-induction began to increase, and when tooth and this of rotor when the tooth of stator overlaps mutually, self-induction reaches maximum; Rotor tooth leaves a certain phase time, and self-induction begins to reduce, and when rotor when the stator tooth center line aligns mutually with this, self-induction reaches minimum value.Shown in Fig. 3 (b), Fig. 3 (c) provides right section threephase armature winding self-induction curve to left side section threephase armature winding inductance with the relation curve of electrical degree.Open winding two ends switching tube at the first transition of every phase inductance respectively and pass to electric current, shown in Fig. 3 (d), produce torque as shown in Figure 4.The last figure of Fig. 4 is the torque pulsation that motor left side section produces, and middle figure be the torque pulsation that right section produces, and figure below is that torque is synthesized in two parts torque pulsation, and synthetic torque has not only increased, and the torque pulsation amplitude is reduced, and ripple frequency doubles.

Claims (1)

1. magnetic resistant electric motor with double stator switch, the rotor that comprises stator and no winding, the salient-pole structure that described stator core and rotor form by silicon steel plate stacking, described stator and rotor iron core is by two sections compositions, two iron leg core appearance together, it is characterized in that stator or the rotor core 180/m degree electrical degree that staggers installs, be set with concentrated armature winding on two sections stator tooths, wherein m is the number of phases.
CN 200510037635 2005-01-07 2005-01-07 Magnetic resistant electric motor with double stator switch CN1302597C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200510037635 CN1302597C (en) 2005-01-07 2005-01-07 Magnetic resistant electric motor with double stator switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200510037635 CN1302597C (en) 2005-01-07 2005-01-07 Magnetic resistant electric motor with double stator switch

Publications (2)

Publication Number Publication Date
CN1645712A CN1645712A (en) 2005-07-27
CN1302597C true CN1302597C (en) 2007-02-28

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Application Number Title Priority Date Filing Date
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Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483370B (en) * 2008-01-11 2010-12-08 张世清 Switched reluctance motor with double stators and double rotors
CN101621224B (en) * 2009-08-03 2012-07-25 东莞洲亮通讯科技有限公司 Coaxial inner-outer coil electric motor
CN102244448A (en) * 2010-05-11 2011-11-16 上海电机学院 Low-torque ripple permanent magnet flux-switching motor
CN101931292A (en) * 2010-08-24 2010-12-29 山东山博电机集团有限公司 Dual-stator and rotor brushless DC motor
CN102148551B (en) * 2011-03-10 2013-09-11 曾绍洪 Two-in-one coaxial direct current brushless motor
CN102412681B (en) * 2011-10-08 2013-07-31 哈尔滨工程大学 Switched reluctance motor with multidirectional magnetic field characteristic
CN102386742A (en) * 2011-11-18 2012-03-21 何嘉颖 Outer-rotor-type eccentric rotor variable reluctance motor
CN104022608A (en) * 2013-02-28 2014-09-03 哈尔滨理工大学 Method reducing switch magnetic resistance motor noise, and switch magnetic resistance motor
CN103633806B (en) * 2013-12-11 2016-03-16 哈尔滨工业大学 Single-phase transverse flux full-control switched reluctance machines
CN103762806B (en) * 2014-01-21 2017-08-22 杭州电子科技大学 A kind of suppressing method of shaded-pole single-phase ac asynchronous motor Vibration Torque
CN104129314B (en) * 2014-07-18 2017-03-01 成都宇能通能源开发有限公司 A kind of employing switched reluctance machines are as the dynamical system of power transformer
CN104242562A (en) * 2014-08-15 2014-12-24 四川绿标能源科技有限公司 Combined type switch reluctance motor power system
WO2016026392A1 (en) * 2014-08-22 2016-02-25 四川绿标能源科技有限公司 Combined switched reluctance motor power system
CN104967268A (en) * 2015-07-15 2015-10-07 余珊珊 Switch reluctance motor of distributed multiple driving units
CN105281448B (en) * 2015-10-09 2017-10-31 清华大学 A kind of asynchronous machine that there is axially adjacent section in the same direction with reverse energization winding
CN106026572A (en) * 2016-01-13 2016-10-12 淄博中聚磁电科技有限公司 Multi-rotor, multi-stator and single-rotor and multi-stator switch reluctance motor structure
WO2017121226A1 (en) * 2016-01-13 2017-07-20 淄博中聚磁电科技有限公司 Multiple rotors, multiple stators, and switched reluctance motor structure having multiple rotors and multiple stators
CN105634231B (en) * 2016-03-30 2018-10-09 上海鼎特电器有限公司 A kind of permanent-magnet type single-phase switch reluctance machine and its control method
CN105915151B (en) * 2016-06-10 2019-07-09 深圳华引动力科技有限公司 A kind of circumferential direction axial backmixing cloth phase switch reluctance motor control method
CN106160376A (en) * 2016-07-04 2016-11-23 韦翔 Self-balancing switched reluctance machines
CN108258862B (en) * 2018-01-11 2019-08-13 杭州电子科技大学 The switched reluctance motor of lowripple torque

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C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Wuxi Runhe Lamina Manufacturing Co., Ltd.

Assignor: Nanjing University of Aeronautics and Astronautics

Contract fulfillment period: 2009.6.30 to 2025.1.6 contract change

Contract record no.: 2009320001070

Denomination of invention: Magnetic resistant electric motor with double stator switch

Granted publication date: 20070228

License type: Exclusive license

Record date: 2009.7.7

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.30 TO 2025.1.6; CHANGE OF CONTRACT

Name of requester: WUXI RUNHE BLADE MANUFACTURING CO., LTD.

Effective date: 20090707

CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee