A Novel Quasi-3D Analytical Model for Axial Flux Motors Considering Magnetic Saturation

2021 ◽  
pp. 1-1
Author(s):  
Hang Zhao ◽  
K.T. Chau ◽  
Tengbo Yang ◽  
Zaixin Song ◽  
Chunhua Liu
Keyword(s):  
Analytical Model ◽  
Magnetic Saturation ◽  
Axial Flux

scholarly journals Torque Ripple Reduction of DTC Based on an Analytical Model of PMSM

2020 ◽  
Vol 11 (1) ◽  
pp. 28
Author(s):  
Zaimin Zhong ◽  
Junming You ◽  
Shuihua Zhou
Keyword(s):  
Analytical Model ◽  
Pulse Width Modulation ◽  
Permanent Magnet Synchronous Motor ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Torque Control ◽  
Magnetic Saturation ◽  
Element Analysis ◽  
Spatial Harmonics ◽  
Feedforward Controller

Aiming at the torque ripple problem of direct torque control that is based on space vector pulse width modulation (SVPWM-DTC) caused by the spatial harmonics and magnetic saturation characteristics of permanent magnet synchronous motor (PMSM), a feedforward controller based on an analytical model of PMSM was designed. An analytical motor model taking the spatial harmonics and magnetic saturation characteristics of PMSM into account by reconstructing the numerical solution of magnetic co-energy (MCE) from finite element analysis (FEA) was proposed. Based on that, the optimal stator flux linkage that minimizes the torque ripple is calculated and then a feedforward controller is designed and added to the SVPWM-DTC framework. Simulations and experiments are carried out and the results show that the proposed feedforward controller can effectively reduce the torque ripple of SVPWM-DTC.

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