CN102624181A - Optimal design method for permanent magnetic synchronous motor - Google Patents
Optimal design method for permanent magnetic synchronous motor Download PDFInfo
- Publication number
- CN102624181A CN102624181A CN2012100890358A CN201210089035A CN102624181A CN 102624181 A CN102624181 A CN 102624181A CN 2012100890358 A CN2012100890358 A CN 2012100890358A CN 201210089035 A CN201210089035 A CN 201210089035A CN 102624181 A CN102624181 A CN 102624181A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- synchronous motor
- rotor
- magnetic synchronous
- permanent magnetic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to a design method for a permanent magnetic synchronous motor and specifically relates to an optimal design method for the permanent magnetic synchronous motor, in order to solve the problems that the present design method for the permanent magnetic synchronous motor is unreasonable in design and results in cost increasing of the permanent magnetic synchronous motor. The optimal design method for the permanent magnetic synchronous motor comprises the following steps: a) forming a rotor of the permanent magnetic synchronous motor by using a steel shaft and a cast aluminum cage rotor; b) uniformly arranging even number of radial permanent magnet slots on the cross section of the cast aluminum cage rotor; and c) respectively mounting a plurality of permanent magnets along the radial direction in each radial permanent magnet slot, and ensuring the smaller intrinsic coercive force of the permanent magnet closer to the center of circle of the rotor and the bigger intrinsic coercive force of the permanent magnet far away from the center of circle of the rotor. The method provided by the invention is suitable for the design of an asynchronous starting permanent magnetic synchronous motor as well as the design of a frequency-converting starting permanent magnetic synchronous motor.
Description
Technical field
The present invention relates to the permanent magnet synchronous motor method for designing, specifically is a kind of permanent magnet synchronous motor Optimization Design.
Background technology
The rotor of permanent magnet synchronous motor is made up of steel axle and cast-in aluminum squirrel cage rotor.Wherein, be evenly distributed with even number radial permanent magnet body groove on the cast-in aluminum squirrel cage rotor section, in each radial permanent magnet body groove permanent magnet be installed all.Permanent magnet synchronous motor has 2 requirements to the performance of permanent magnet in running: the one, and permanent magnet synchronous motor does not allow to produce irreversible demagnetization because of electric machine temperature rise in running.The 2nd, permanent magnet synchronous motor produces big electric current in starting or overload step-out in service, under the impact of strong opposing magnetic field, does not allow to occur irreversible demagnetization.In existing permanent magnet synchronous motor method for designing, all permanent magnets of installing on the rotor of same permanent magnet synchronous motor all are designed to have identical performance parameter (being often referred to remanent magnetism, HCJ etc.).This design is based on that following hypothesis carries out: the effect size of the opposing magnetic field that each position of permanent magnet in the rotor of permanent magnet synchronous motor is suffered is identical.Yet practice shows that at the different radii place of the rotor of permanent magnet synchronous motor, the effect of the opposing magnetic field that permanent magnet is suffered size is also inequality.Specific as follows: the effect of the suffered opposing magnetic field of near permanent magnet of healing from the rotor center of circle is littler.Otherwise the effect of the suffered opposing magnetic field of permanent magnet far away of healing from the rotor center of circle is bigger.Can draw according to this conclusion, there is the irrational problem of design in existing permanent magnet synchronous motor method for designing, and it raises because of designing the unreasonable cost of permanent magnet synchronous motor that causes.Based on this, be necessary to invent a kind of brand-new permanent magnet synchronous motor method for designing, to solve the problem that existing permanent magnet synchronous motor designing method is unreasonable and cause the cost rising of permanent magnet synchronous motor.
Summary of the invention
The present invention provides a kind of permanent magnet synchronous motor Optimization Design in order to solve the problem that existing permanent magnet synchronous motor designing method is unreasonable and cause the cost rising of permanent magnet synchronous motor.
The present invention adopts following technical scheme to realize: a kind of permanent magnet synchronous motor Optimization Design, this method are to adopt following steps to realize: a. adopts steel axle and cast-in aluminum squirrel cage rotor to form the rotor of permanent magnet synchronous motor; B., even number radial permanent magnet body groove evenly is set on cast-in aluminum squirrel cage rotor section; C. in each radial permanent magnet body groove, several permanent magnets are installed radially respectively; And the HCJ of the near permanent magnet that guarantees to heal from the rotor center of circle is littler, the bigger (ability of HCJ reflection permanent magnet opposing opposing magnetic field of the HCJ of the permanent magnet far away of healing from the rotor center of circle.HCJ is littler, and a little less than the ability of permanent magnet opposing opposing magnetic field effect healed, HCJ was bigger, and the ability of permanent magnet opposing opposing magnetic field effect heals strong).
A kind of permanent magnet synchronous motor Optimization Design of the present invention is based on carries out as drawing a conclusion: the effect of the suffered opposing magnetic field of near permanent magnet of healing from the rotor center of circle is littler, and the effect of the suffered opposing magnetic field of permanent magnet far away of healing from the rotor center of circle is bigger.Therefore; Compare with existing permanent magnet synchronous motor method for designing; A kind of permanent magnet synchronous motor Optimization Design design more reasonable of the present invention; It is according to strength theory, at the different radii place of the rotor of permanent magnet synchronous motor the permanent magnet with different HCJs is installed, and greatly reduces the cost (this is because the less permanent magnet of the HCJ permanent magnet cost bigger than HCJ is much lower) of permanent magnet synchronous motor.
The present invention is based on brand-new design theory; Efficiently solve the problem that existing permanent magnet synchronous motor designing method is unreasonable and cause the cost rising of permanent magnet synchronous motor; It both had been applicable to the design of asynchronous starting permanent magnet synchronous motor, also was applicable to the varying frequency starting DESIGN OF PERMANENT MAGNETISM SYNCHRONOUS MOTOR.
Description of drawings
Fig. 1 is a kind of structural representation of rotor that adopts the permanent magnet synchronous motor of a kind of permanent magnet synchronous motor Optimization Design design of the present invention.
Fig. 2 is the another kind of structural representation of rotor that adopts the permanent magnet synchronous motor of a kind of permanent magnet synchronous motor Optimization Design design of the present invention.
Among the figure: 1-steel axle, 2-cast-in aluminum squirrel cage rotor, 3-radial permanent magnet body groove, 4-permanent magnet.
Embodiment
Embodiment one
A kind of permanent magnet synchronous motor Optimization Design, this method are to adopt following steps to realize: a. adopts steel axle 1 and cast-in aluminum squirrel cage rotor 2 to form the rotor of permanent magnet synchronous motor; B., even number radial permanent magnet body groove 3 evenly is set on cast-in aluminum squirrel cage rotor 2 sections; C. in each radial permanent magnet body groove 3, several permanent magnets 4 are installed radially respectively, and the HCJ of the near permanent magnet 4 that guarantees to heal from the rotor center of circle is littler, the HCJ of the permanent magnet far away 4 of healing from the rotor center of circle is bigger;
Among the said step a, the magnetic structure of the rotor of permanent magnet synchronous motor is the tangential magnetic structure; As shown in Figure 1;
Among the said step c, 4 number averages of permanent magnet of installing in each radial permanent magnet body groove 3 are more than or equal to 2;
During practical implementation, the number of the permanent magnet in each radial permanent magnet body groove is 3.
Embodiment two
A kind of permanent magnet synchronous motor Optimization Design, this method are to adopt following steps to realize: a. adopts steel axle 1 and cast-in aluminum squirrel cage rotor 2 to form the rotor of permanent magnet synchronous motor; B., even number radial permanent magnet body groove 3 evenly is set on cast-in aluminum squirrel cage rotor 2 sections; C. in each radial permanent magnet body groove 3, several permanent magnets 4 are installed radially respectively, and the HCJ of the near permanent magnet 4 that guarantees to heal from the rotor center of circle is littler, the HCJ of the permanent magnet far away 4 of healing from the rotor center of circle is bigger;
Among the said step a, the magnetic structure of the rotor of permanent magnet synchronous motor is hybrid magnetic structure; As shown in Figure 2;
Among the said step c, 4 number averages of permanent magnet of installing in each radial permanent magnet body groove 3 are more than or equal to 2;
During practical implementation, the number of the permanent magnet in each radial permanent magnet body groove is 3.
Claims (4)
1. permanent magnet synchronous motor Optimization Design is characterized in that: this method is to adopt following steps to realize: a. adopts the rotor of steel axle (1) and cast-in aluminum squirrel cage rotor (2) composition permanent magnet synchronous motor; B. on cast-in aluminum squirrel cage rotor (2) section, even number radial permanent magnet body groove (3) is set evenly; C. in each radial permanent magnet body groove (3), several permanent magnets (4) are installed radially respectively, and the HCJ of the near permanent magnet (4) that guarantees to heal from the rotor center of circle is littler, the HCJ of the permanent magnet far away (4) of healing from the rotor center of circle is bigger.
2. a kind of permanent magnet synchronous motor Optimization Design according to claim 1 is characterized in that: among the said step a, the magnetic structure of the rotor of permanent magnet synchronous motor is the tangential magnetic structure.
3. a kind of permanent magnet synchronous motor Optimization Design according to claim 1 is characterized in that: among the said step a, the magnetic structure of the rotor of permanent magnet synchronous motor is hybrid magnetic structure.
4. according to claim 1 or 2 or 3 described a kind of permanent magnet synchronous motor Optimization Design, it is characterized in that: among the said step c, the individual number average of installing in each radial permanent magnet body groove (3) of permanent magnet (4) is more than or equal to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100890358A CN102624181A (en) | 2012-03-30 | 2012-03-30 | Optimal design method for permanent magnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100890358A CN102624181A (en) | 2012-03-30 | 2012-03-30 | Optimal design method for permanent magnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102624181A true CN102624181A (en) | 2012-08-01 |
Family
ID=46563905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100890358A Pending CN102624181A (en) | 2012-03-30 | 2012-03-30 | Optimal design method for permanent magnetic synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102624181A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779988A (en) * | 2012-10-18 | 2014-05-07 | 罗伯特·博世有限公司 | Cylindrical rotor for permanent magnet-excited electric machine |
| CN104184292A (en) * | 2014-06-02 | 2014-12-03 | 赵晓东 | Hybrid-type asynchronous-starting permanent magnet synchronous motor and pole-changing and speed-changing method |
| CN104184293A (en) * | 2014-07-16 | 2014-12-03 | 赵晓东 | Adjusting-type pole-changing speed-changing permanent-magnet synchronous motor |
| WO2020098339A1 (en) * | 2018-11-14 | 2020-05-22 | 珠海格力电器股份有限公司 | Motor rotor structure and permanent magnet motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10271722A (en) * | 1997-03-21 | 1998-10-09 | Matsushita Electric Ind Co Ltd | Permanent magnet buried rotor |
| US20030164655A1 (en) * | 2002-03-01 | 2003-09-04 | Biais Francois J. | Interior permanent magnet rotor |
| CN101005219A (en) * | 2006-11-22 | 2007-07-25 | 北京世纪乐华技术有限公司 | Permanent magnet synchronous motor |
| CN201846151U (en) * | 2010-03-22 | 2011-05-25 | 株洲南车时代电气股份有限公司 | Rotor device of permanent magnet motor |
-
2012
- 2012-03-30 CN CN2012100890358A patent/CN102624181A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10271722A (en) * | 1997-03-21 | 1998-10-09 | Matsushita Electric Ind Co Ltd | Permanent magnet buried rotor |
| US20030164655A1 (en) * | 2002-03-01 | 2003-09-04 | Biais Francois J. | Interior permanent magnet rotor |
| CN101005219A (en) * | 2006-11-22 | 2007-07-25 | 北京世纪乐华技术有限公司 | Permanent magnet synchronous motor |
| CN201846151U (en) * | 2010-03-22 | 2011-05-25 | 株洲南车时代电气股份有限公司 | Rotor device of permanent magnet motor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779988A (en) * | 2012-10-18 | 2014-05-07 | 罗伯特·博世有限公司 | Cylindrical rotor for permanent magnet-excited electric machine |
| CN104184292A (en) * | 2014-06-02 | 2014-12-03 | 赵晓东 | Hybrid-type asynchronous-starting permanent magnet synchronous motor and pole-changing and speed-changing method |
| CN104184292B (en) * | 2014-06-02 | 2016-07-13 | 大连碧蓝节能环保科技有限公司 | Hybrid asynchronous starting permanent magnet synchronous motor and pole-changing windings method |
| CN104184293A (en) * | 2014-07-16 | 2014-12-03 | 赵晓东 | Adjusting-type pole-changing speed-changing permanent-magnet synchronous motor |
| CN104184293B (en) * | 2014-07-16 | 2016-05-18 | 大连碧蓝节能环保科技有限公司 | Adjustable type pole-changing windings permasyn morot |
| WO2020098339A1 (en) * | 2018-11-14 | 2020-05-22 | 珠海格力电器股份有限公司 | Motor rotor structure and permanent magnet motor |
| US11336135B2 (en) | 2018-11-14 | 2022-05-17 | Gree Electric Appliances, Inc. Of Zhuhai | Motor rotor structure and permanent magnet motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205453333U (en) | Permanent magnet rotor structure of high power density and easy weak magnetism speed governing | |
| CN102769365A (en) | Permanent magnet synchronous motor | |
| CN203180674U (en) | Permanent-magnet synchronous motor rotor beneficial to dynamic balance of rotor | |
| CN102624181A (en) | Optimal design method for permanent magnetic synchronous motor | |
| CN102386702A (en) | Permanent magnetic synchronous motor and W-shaped rotor structure thereof | |
| CN102055251A (en) | Permanent-magnet motor capable of effectively eliminating slot effect | |
| CN202145610U (en) | Pmsm | |
| CN104753213A (en) | Permanent-magnet DC brushless motor | |
| CN202364018U (en) | Permanent magnet synchronous motor and W-shaped rotor structure thereof | |
| CN102790502B (en) | Permanent magnet synchronous motor | |
| CN105610253A (en) | Motor for compressor and compressor with motor | |
| CN105449894A (en) | Asymmetric permanent magnet motor for new energy automobile | |
| CN104022611A (en) | Self-starting rare-earth permanent magnet synchronous motor rotor | |
| CN202435164U (en) | Permanent magnet synchronous motor and arc rotor structure thereof | |
| CN202997734U (en) | Rotor structure of two-phase switched reluctance motor | |
| CN202475066U (en) | Rotor tangential structure for permanent magnet synchronous motor | |
| CN102214964B (en) | Single-phase self-starting permanent magnet motor rotor and manufacturing method thereof | |
| CN204271865U (en) | A kind of surface-built-in asynchronous starting and permanent magnet rotor | |
| CN102769348A (en) | Optimal rotor design method of radial permanent magnet synchronous motor | |
| CN202364016U (en) | Permanent magnet synchronous motor and V-shaped rotor structure thereof | |
| CN104333159A (en) | Low-torque-ripple permanent magnet motor for electric automobile | |
| CN201518435U (en) | Self-start-up permanent magnet synchronous motor and rotor used for same | |
| CN202931056U (en) | Permanent magnet rotor and motor | |
| CN204168025U (en) | Low torque fluctuation permanent magnetic motor used for electric vehicle | |
| CN202374148U (en) | Permanent magnet synchronous motor and horizontal rotor structure thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120801 |