Title :
A novel low thrust ripple 3-phase 6-slot permanent magnet linear synchronous motor
Author :
Cheng, Yuanxiong ; Yang, Jiajun ; Liu, Guoxian
Author_Institution :
Dept. of Mech. Design, Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper presents a novel constructive three-phase six-slotted permanent magnet linear synchronous motor (PMLSM) based on the approach of combinational iron-cored primary. In order to develop a small scale, large thrust and high thrust performance slotted PMLSM, a construct of separated three two-slotted armature iron-cores for each phase winding is proposed. The influence of couple between iron-cores on end-effect force is investigated in details. Optimal design of iron-core parameters is conducted and static thrust characteristics are extensively evaluated by finite-element method and harmonic analysis. Thrust ripple is reduced 4.85 times compared to a conventional 3-phase 6-slot PMLSM. The novel constriction can be applied to develop small-scale, large thrust and high control performance PMLSM, and extend slotted PMLSM application to small-scale automatic systems to replace slot-less PMLSM.
Keywords :
finite element analysis; harmonic analysis; linear synchronous motors; machine windings; permanent magnet motors; PMLSM; combinational iron-cored primary; finite-element method; harmonic analysis; permanent magnet linear synchronous motor; phase winding; small-scale automatic systems; two-slotted armature iron-cores; Analytical models; Finite element methods; Force; Harmonic analysis; Permanent magnets; Synchronous motors; Windings; combinational iron-core; detent force; electromagnetic ripple; linear synchronous motor; thrust ripple;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768926
