Title :
Analysis of inductance variation in permanent magnet linear synchronous motor
Author :
Wang, Hao ; Zhang, Zhijing ; Liu, Chengying ; Li, Chengwu
Author_Institution :
Sch. of Mech. & Vehicular Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
On the basis of a new non-linear magnetic circuit analytic model, the inductance of Permanent Magnetic Linear Synchronous Machine (PMLSM) has been calculated in this paper. The impact of magnetic saturation has been significantly considered in this model. So the dynamic inductance is obtained as a function of magnet position and current. Meanwhile, it also presents the fundamental reasons about the inequality of stable inductance of the three-phase winding by analysis of the asymmetric magnetic circuit. The proposed method is verified by finite-element method and experiments.
Keywords :
finite element analysis; linear synchronous motors; machine windings; magnetic circuits; permanent magnet motors; PMLSM; asymmetric magnetic circuit; dynamic inductance; finite-element method; inductance variation; magnetic saturation; nonlinear magnetic circuit analytic model; permanent magnet linear synchronous motor; three-phase winding; Circuit analysis; Finite element methods; Inductance; Magnetic analysis; Magnetic circuits; Roentgenium; Saturation magnetization; Synchronous machines; Synchronous motors; Vehicle dynamics; Inductance; Permanent magnet linear synchronous motor (PMLSM); Saturation phenomena; asymmetry;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5535740
