scholarly journals Demagnetization investigation of a partitioned rotor flux switching machine with hybrid permanent magnet

AIP Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 056636 ◽  
Author(s):  
Deyang Fan ◽  
Li Quan ◽  
Xiaoyong Zhu ◽  
Zixuan Xiang ◽  
Wenye Wu
Keyword(s):  
Permanent Magnet ◽  
Rotor Flux

scholarly journals Double-Rotor Flux-Switching Permanent Magnet Machine With Yokeless Stator

2016 ◽  
Vol 31 (4) ◽  
pp. 1267-1277 ◽  
Author(s):  
Arun Gandhi ◽  
Leila Parsa
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Machine ◽  
Rotor Flux

Torque ripple optimization for synchronous reluctance motors based on a virtual permanent magnet harmonic machine model

2021 ◽  
Vol 67 (3) ◽  
pp. 327-338
Author(s):  
Yixiang Xu ◽  
Chong Di ◽  
Xiaohua Bao ◽  
Dongying Xu
Keyword(s):  
Magnetic Field ◽  
Permanent Magnet ◽  
Torque Ripple ◽  
Air Gap ◽  
Analysis Model ◽  
Machine Model ◽  
Asymmetric Rotor ◽  
Rotor Flux ◽  
Air Gap Magnetic Field ◽  
Intermediate Variables

The torque ripple is affected by both the stator and the rotor magnetic field harmonics. In synchronous reluctance motors (SynRM), there are only rotor permeance harmonics existing on the rotor side for the absence of the rotor windings. Since the asymmetric rotor flux barriers are widely applied in the SynRM rotor, it is difficult to calculate the rotor permeance accurately by the analytical method. In this article, the effects of the rotor permeance harmonics on the air-gap magnetic field are studied by a virtual permanent magnet harmonic machine (VPMHM), which is a finite-element (FE) based magnetostatic analysis model. The air-gap flux density harmonics produced by the SynRM rotor are extracted from the VPMHM model and used as the intermediate variables for the torque ripple optimization. The proposed method does not need to solve the transient process of motor motion. Hence, the time of the optimization process can be significantly shortened. Finally, a full electric cycle is simulated by dynamic FE simulation, and the torque ripple is proved to be effectively reduced.

Sensorless permanent-magnet synchronous motor drive using a reduced-order rotor flux observer

2008 ◽  
Vol 2 (2) ◽  
pp. 88-98 ◽  
Author(s):  
T.F. Chan ◽  
W. Wang ◽  
Y.K. Wong ◽  
P. Borsje ◽  
S.L. Ho
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Motor Drive ◽  
Reduced Order ◽  
Flux Observer ◽  
Synchronous Motor Drive ◽  
Rotor Flux

Study on the Vector Control of PMSM Based on a New Controller

2011 ◽  
Vol 403-408 ◽  
pp. 3170-3173
Author(s):  
Wen Ying Xiao ◽  
Qing Yun Pu
Keyword(s):  
Mathematical Model ◽  
Vector Control ◽  
Permanent Magnet ◽  
Control Strategy ◽  
Permanent Magnet Synchronous Motor ◽  
Matlab Simulink ◽  
Static Responses ◽  
Rotor Flux ◽  
Pr Controller ◽  
Vector Control Strategy

Based on anglicizing characteristics of the proportional resonance controller (resonant, PR), against the defects of the PR controller, combined with permanent magnet synchronous motor mathematical model, a rotor flux oriented vector control strategy based on a novel improve the PR controller is introduced. Finally, MATLAB /simulink was used to simulate the model above. The system got good dynamic and static responses, verifying the correctness and feasibility of the proposed method.

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