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1. WO2020108411 - METHOD FOR EVALUATING ELECTROMAGNETIC PROPERTIES OF PERMANENT MAGNET MOTOR

Publication Number WO/2020/108411
Publication Date 04.06.2020
International Application No. PCT/CN2019/120402
International Filing Date 22.11.2019
IPC
H02K 15/03 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
03having permanent magnets
CPC
G01R 29/0864
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
08Measuring electromagnetic field characteristics
0864characterised by constructional or functional features
G06F 30/17
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
30Computer-aided design [CAD]
10Geometric CAD
17Mechanical parametric or variational design
G06F 30/20
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
30Computer-aided design [CAD]
20Design optimisation, verification or simulation
H02K 1/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
12Stationary parts of the magnetic circuit
16Stator cores with slots for windings
H02K 1/278
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
278Surface mounted magnets; Inset magnets
H02K 15/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
03having permanent magnets
Applicants
  • 浙江大学 ZHEJIANG UNIVERSITY [CN]/[CN]
Inventors
  • 吴立建 WU, Lijian
  • 方攸同 FANG, Youtong
  • 尹豪 YIN, Hao
  • 孟迎 MENG, Ying
  • 朱旻宸 ZHU, Minchen
Agents
  • 浙江杭州金通专利事务所有限公司 ZHEJIANG HANGZHOU JINTONG PATENT OFFICE CO., LTD.
Priority Data
201811453722.730.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR EVALUATING ELECTROMAGNETIC PROPERTIES OF PERMANENT MAGNET MOTOR
(FR) PROCÉDÉ D'ÉVALUATION DES PROPRIÉTÉS ÉLECTROMAGNÉTIQUES D'UN MOTEUR À AIMANT PERMANENT
(ZH) 一种评价永磁电机电磁性能的方法
Abstract
(EN)
Disclosed is a method for evaluating the electromagnetic properties of a permanent magnet motor. The method is executed in computer or motor controller, calculates the magnetic field distribution by using a subdomain method to express the boundary conditions in each subdomain with the current density of equivalent current sheets, and calculates the current density of equivalent current sheets by using a magnetic circuit method based on the magnetic field distribution. The subdomain method and the magnetic circuit method are mutually iterated until the convergent olution of the magnetic field distribution is obtained, and the electromagnetic parameters are calculated based on the convergent solution, thereby achieving the purpose of evaluating the electromagnetic properties.
(FR)
L'invention concerne un procédé d'évaluation des propriétés électromagnétiques d'un moteur à aimant permanent. Le procédé est mis en œuvre dans un ordinateur ou un contrôleur de moteur, calcule la distribution de champ magnétique au moyen d'un procédé de sous-domaine afin d'exprimer les conditions limites dans chaque sous-domaine avec la densité de courant de feuilles de courant équivalentes, et calcule la densité de courant de feuilles de courant équivalentes au moyen d'un procédé de circuit magnétique en fonction de la distribution de champ magnétique. Le procédé de sous-domaine et le procédé de circuit magnétique sont mutuellement itérés jusqu'à ce que la solution convergente de la distribution de champ magnétique soit obtenue, et les paramètres électromagnétiques sont calculés sur la base de la solution convergente, ce qui permet d'atteindre l'objectif d'évaluation des propriétés électromagnétiques.
(ZH)
一种评价永磁电机电磁性能的方法,该方法执行于计算机或电机控制器,以子域法计算磁场分布,子域法在各子域中以等效电流片的电流密度表示边界条件;以磁路法基于磁场分布计算等效电流片的电流密度,子域法和磁路法相互迭代直到获得磁场分布的收敛解,基于收敛解计算电磁性能参数,达到评价电磁性能的目的。
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Latest bibliographic data on file with the International Bureau