Sensorless operation of permanent magnet AC (PMAC) motors with modified stator windings

2002 ◽  
Author(s):  
K.M. Rahman ◽  
H.A. Toliyat
Keyword(s):  
Permanent Magnet ◽  
Stator Windings

scholarly journals Design and Analysis of a Dual Airgap Radial Flux Permanent Magnet Vernier Machine with Yokeless Rotor

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2311
Author(s):  
Mudassir Raza Siddiqi ◽  
Tanveer Yazdan ◽  
Jun-Hyuk Im ◽  
Muhammad Humza ◽  
Jin Hur
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Flux Linkage ◽  
Element Analysis ◽  
Cogging Torque ◽  
Torque Density ◽  
Stator Windings ◽  
Radial Flux ◽  
Torque Ripples

This paper presents a novel topology of dual airgap radial flux permanent magnet vernier machine (PMVM) in order to obtain a higher torque per magnet volume and similar average torque compared to a conventional PMVM machine. The proposed machine contains two stators and a sandwiched yokeless rotor. The yokeless rotor helps to reduce the magnet volume by providing an effective flux linkage in the stator windings. This effective flux linkage improved the average torque of the proposed machine. The competitiveness of the proposed vernier machine was validated using 2D finite element analysis under the same machine volume as that of conventional vernier machine. Moreover, cogging torque, torque ripples, torque density, losses, and efficiency performances also favored the proposed topology.

scholarly journals Direct Torque Control of Dual Three-Phase Permanent Magnet Synchronous Motor

2021 ◽  
Vol 297 ◽  
pp. 01017
Author(s):  
Fouad Labchir ◽  
Mhammed Hasoun ◽  
Aziz El Afia ◽  
Karim Benkirane ◽  
Mohamed Khafallah
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Synchronous Motor ◽  
Torque Control ◽  
Stator Windings ◽  
Torque Control Strategy ◽  
Three Phase ◽  
Low Torque

In this paper a direct torque control strategy for dual three-phase permanent magnet synchronous motor (DTP-PMSM) is presented, the machine has two sets of three-phase stator windings spatially phase shifted by 30 electric degrees. In order to reduce the stator harmonic current, torque and flux are controlled based on regulators and Vector Space Decomposition technique. The proposed approach has the benefits of low stator current distortion and low torque ripple. The validity and the efficiency of the selected technique are confirmed by simulation results.

Performance Simulation and Analysis of a Novel Single-Phase Permanent Magnetic Synchronous Motor

2013 ◽  
Vol 816-817 ◽  
pp. 303-306
Author(s):  
Hui Zhong ◽  
Xiu He Wang ◽  
Jing Wang ◽  
Ming Yin
Keyword(s):  
Permanent Magnet ◽  
Single Phase ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Positive Sequence ◽  
Performance Simulation ◽  
Stator Windings ◽  
Ac Power ◽  
In Series ◽  
Stationary Reference Frame

This paper presents a novel energy-efficient single-phase permanent magnet synchronous motor with three-phase stator windings which are connected to two external capacitors in series connection, supplied by the single-phase AC power. The positive sequence impedance and negative sequence impedance of the novel single-phase permanent magnet synchronous motor are presented based on the symmetrical component method, the condition for balanced operation is analyzed and the method for determining the requested capacitances is also obtained. The simulation model of the motor is constructed in d-q stationary reference frame. The transient performance of the proposed motor is simulated and the simulation results proved the validity of the proposed motor.

Sign in / Sign up

Export Citation Format

Share Document