Loading field analysis on PMAC servo motor

Author

Chen, Jintao ; Gong, Xiaofeng ; Jing, Hongmin ; Wu, Zhigan ; Ying, Jianping

Author_Institution

Delta Power Electron. Center, Shanghai, China

Volume

1

fYear

2005

fDate

27-29 Sept. 2005

Firstpage

471

Abstract

The permanent magnet AC (PMAC) servo motor is widely used in the fields requiring the ultimately high performance. Such as good dynamics, low torque pulsation and noise, etc. Hence, how to get the assured output torque plays a dominant role in servo motor design. In PMAC servo motor using i_d = Q control strategy, the electromagnetic power is only related to current and back emf. Back emf is taken by the flux produced by PM. But, because of the armature reaction´s effect, the flux produced by PM is different from that in the open-circuit condition. In this paper, a method has been developed for separating the fields produced by PM and winding current under any specified load condition. The technique is based on a 2-dimensional finite element analysis. Then a 10-pole/9-slot PMAC servo motor´s field is analyzed using this method. This method is applicable to other PM motors.

Keywords

AC motors; design engineering; finite element analysis; permanent magnet motors; servomotors; torque; 2-dimensional finite element analysis; armature reaction; electromagnetic power; loading field analysis; open-circuit condition; permanent magnet AC servo motor; winding current; Armature; Brushless DC motors; DC motors; Magnetic analysis; Permanent magnet motors; Permeability; Servomechanisms; Servomotors; Synchronous motors; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on

Print_ISBN

7-5062-7407-8

Type

conf

DOI

10.1109/ICEMS.2005.202572

Filename

1574805