scholarly journals Physical and Technical Energy Problems

2013 ◽  
Vol 50 (3) ◽  
pp. 3-11 ◽  
Author(s):  
N. Levin ◽  
V. Pugachev ◽  
J. Dirba ◽  
L. Lavrinovicha
Keyword(s):  
Service Life ◽  
Magnetic Flux ◽  
Low Cost ◽  
Simple Design ◽  
Electromagnetic Torque ◽  
Electric Motors ◽  
Household Appliances ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor ◽  
Production Solutions

The paper presents an overview of brushless electric motors used in hand electric tools and household appliances. Analysis of the motor types has shown that synchronous reluctance motors are the most reliable for lowpower drives of such tools and appliances due to their simple design, long service life and low cost of production. Solutions are proposed for significant decrease in the quadrature-axis magnetic flux of the synchronous reluctance motor. The motors are shown to develop the specific electromagnetic torque up to 0.35÷0.4 Nm/kg.

scholarly journals Theoretical and Experimental Research of Synchronous Reluctance Motor

2017 ◽  
Vol 54 (5) ◽  
pp. 38-47 ◽  
Author(s):  
R. Dobriyan ◽  
S. Vitolina ◽  
L. Lavrinovicha ◽  
J. Dirba
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Electromagnetic Torque ◽  
The Finite Element Method ◽  
Magnetomotive Force ◽  
Research On Evaluation ◽  
Stator Windings ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor ◽  
Experimental Values

Abstract The paper presents the research on evaluation of accuracy of magnetic field calculations of synchronous reluctance motor in comparison with the results obtained in experiments. Magnetic field calculations are performed with the finite element method to determine values of the magnetic flux and electromagnetic torque according to the current value in motor stator and load angle between the rotor direct-axis and axis of stator magnetomotive force (MMF). Experimental values of magnetic flux and electromagnetic torque are obtained on motor with locked rotor while equivalent direct current is applied to the stator windings. The research shows that the results obtained from the magnetic field calculations coincide well with the experimental data.

scholarly journals Study of the Synchronous Reluctance Motor Design

2016 ◽  
Vol 53 (4) ◽  
pp. 22-29 ◽  
Author(s):  
J. Dirba ◽  
L. Lavrinovicha ◽  
R. Dobriyan
Keyword(s):  
Magnetic Flux ◽  
Torque Ripple ◽  
Electromagnetic Torque ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor ◽  
Motor Design ◽  
Twofold Decrease ◽  
External Rotor

AbstractThe paper focuses on studying the external-rotor synchronous reluctance motor. The analysis is performed to estimate the influence of the number of stator slots and non-magnetic areas in the rotor (i.e., flux barriers) on the electromagnetic torque and torque ripple of the studied motor. It is concluded that the increase in the number of stator slotsZ= 6 toZ= 18 causes an approximately twofold decrease in the ripple factor, but torque increases by 5 %. Electromagnetic torque will be increased approximately by 24 %, if non-magnetic flux barriers are created in the rotor of the studied synchronous reluctance motor.

A Low-Cost and Efficient Permanent-Magnet-Assisted Synchronous Reluctance Motor Drive

2007 ◽  
Vol 43 (2) ◽  
pp. 542-550 ◽  
Author(s):  
Peyman Niazi ◽  
Hamid A. Toliyat ◽  
Dal-Ho Cheong ◽  
Jung-Chul Kim
Keyword(s):  
Permanent Magnet ◽  
Low Cost ◽  
Motor Drive ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor

scholarly journals Study on Line-Start Permanent Magnet Assistance Synchronous Reluctance Motor for Improving Efficiency and Power Factor

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 384 ◽  
Author(s):  
Hyunwoo Kim ◽  
Yeji Park ◽  
Huai-Cong Liu ◽  
Pil-Wan Han ◽  
Ju Lee
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Power Factor ◽  
Permanent Magnets ◽  
Electric Motors ◽  
Element Analysis ◽  
Final Model ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor

In order to improve the efficiency, a line-start synchronous reluctance motor (LS-SynRM) is studied as an alternative to an induction motor (IM). However, because of the saliency characteristic of SynRM, LS-SynRM have a limited power factor. Therefore, to improve the efficiency and power factor of electric motors, we propose a line-start permanent magnet assistance synchronous reluctance motor (LS-PMA-SynRM) with permanent magnets inserted into LS-SynRM. IM and LS-SynRM are selected as reference models, whose performances are analyzed and compared with that of LS-PMA-SynRM using a finite element analysis. The performance of LS-PMA-SynRM is analyzed considering the position and length of its permanent magnet, as well as its manufacture. The final model of LS-PMA-SynRM is designed for improving the efficiency and power factor of electric motors compared with LS-SynRM. To verify the finite element analysis (FEA) result, the final model is manufactured, experiments are conducted, and the performance of LS-PMA-SynRM is verified.

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