DocumentCode :
3534844
Title :
Optimal design of the rotor structure for interior permanent magnet synchronous motor
Author :
Huang, Shoudao ; Liu, Jian ; Gao, Jian ; Xiao, Lei
Author_Institution :
Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China
fYear :
2011
fDate :
11-13 May 2011
Firstpage :
1
Lastpage :
5
Abstract :
The permanent magnet synchronous motors are widely used in various industrial applications due to many advantages such as high power density, high efficiency, low manufacturing cost and so on, but cogging torque and moment of inertia are the most important factors affecting the performance and control precision. In this paper, firstly, the cogging torque can be effectively reduced by taking the auxiliary notches, which was obtained through the analysis of the mathematical model of cogging torque and no-load magnetic field of yoke. After that, the rotor iron core was holed to reduce the moment of inertia, which had no effect on the performance. Finally, an interior permanent magnet synchronous motor whose power is 7.5kW was taken as example. Optimization was done to the rotor structure by using the method mentioned above, which was feasibility verifying by analysis of finite element using Ansoft.
Keywords :
finite element analysis; magnetic fields; optimisation; permanent magnet motors; rotors; synchronous motors; torque; Ansoft; auxiliary notches; cogging torque; control precision; finite element; high power density; inertia moment; interior permanent magnet synchronous motor; magnetic field; optimal design; optimization; power 7.5 kW; rotor iron core; rotor structure; Finite element methods; Forging; Magnetic fields; Permanent magnet motors; Rotors; Synchronous motors; Torque;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Engineering, Energy and Electrical Drives (POWERENG), 2011 International Conference on
Conference_Location :
Malaga
ISSN :
2155-5516
Print_ISBN :
978-1-4244-9845-1
Electronic_ISBN :
2155-5516
Type :
conf
DOI :
10.1109/PowerEng.2011.6036493
Filename :
6036493
Link To Document :
بازگشت