Starting and high-speed driving of single-phase flux-reversal motor for vacuum cleaner

2005 ◽  
Vol 41 (10) ◽  
pp. 3967-3969 ◽  
Author(s):  
K.B. Jang ◽  
Sung Hong Won ◽  
Tae Heoung Kim ◽  
Ju Lee
Keyword(s):  
High Speed ◽  
Single Phase ◽  
Vacuum Cleaner ◽  
Flux Reversal

scholarly journals Optimal Design of a Novel Three-Phase High-Speed Flux Reversal Machine

2019 ◽  
Vol 9 (18) ◽  
pp. 3822 ◽  
Author(s):  
Vladimir Prakht ◽  
Vladimir Dmitrievskii ◽  
Vadim Kazakbaev ◽  
Safarbek Oshurbekov ◽  
Mohamed N. Ibrahim
Keyword(s):  
High Speed ◽  
Single Phase ◽  
High Efficiency ◽  
Motor Behavior ◽  
Optimization Procedure ◽  
Torque Ripple ◽  
Stator Windings ◽  
Flux Reversal ◽  
Three Phase ◽  
Flux Reversal Machine

A single-phase flux reversal machine (FRM) has many advantages in high-speed applications because of its simple and reliable rotor structure without magnets or winding, simple and cheap concentrated stator windings, high efficiency, and power density. However, the major problem of single-phase motors is the high torque ripple, which shortens their lifetime and causes noise and vibrations, not only in the machine, but also in the mechanisms coupled therewith. This paper presents a novel three-phase machine consisting of three single-phase machines, having a common shaft aiming to reduce the torque ripple and to improve motor behavior. In this paper, the mathematical model of the single-phase flux reversal motor, as well as the conversion procedure of the single-phase motor parameters to the three-phase ones, is considered. Furthermore, an optimization procedure of the motor and choosing the optimization objectives are done. The finite element two-dimensional (2D) method is used to simulate the machine and to show the results.

scholarly journals Optimal Design of a High-Speed Single-Phase Flux Reversal Motor for Vacuum Cleaners

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3334 ◽  
Author(s):  
Vladimir Dmitrievskii ◽  
Vladimir Prakht ◽  
Vadim Kazakbaev ◽  
Sergey Sarapulov
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
High Speed ◽  
Single Phase ◽  
The Finite Element Method ◽  
Flux Reversal ◽  
Motor Efficiency ◽  
Rotor Structure ◽  
Element Method

This paper describes the design of a single-phase high-speed flux reversal motor (FRM) for use in a domestic application (vacuum cleaner). This machine has a simple and reliable rotor structure, which is a significant advantage for high-speed applications. An FRM design in which the inner stator surface is entirely used allows it to decrease its volume and increase its efficiency. The mathematical modeling, based on the finite element method, and the optimal design of the high-speed single-phase FRM are described. The criterion of optimization and the selection of a proper optimization algorithm are discussed. Since the finite element method introduces a small but quasi-random error due to round-off accumulation and choosing the mesh, etc., the Nelder-Mead method, not requiring the derivatives calculation, was chosen for the optimization. The target parameter of the optimization is built for the motor efficiency when operating at different loads. Calculations show that the presented approach provides increasing motor efficiency during the optimization, particularly at underload.

scholarly journals Optimum Design of High-Speed Single-Phase Flux Reversal Motor with Reduced Torque Ripple

2020 ◽  
Vol 10 (17) ◽  
pp. 6024
Author(s):  
Vladimir Dmitrievskii ◽  
Vladimir Prakht ◽  
Vadim Kazakbaev ◽  
Dmitry Golovanov
Keyword(s):  
Objective Function ◽  
High Speed ◽  
Single Phase ◽  
Peak Torque ◽  
Torque Ripple ◽  
Additional Advantage ◽  
Power Cost ◽  
Flux Reversal ◽  
Wide Range ◽  
Torque Pulsations

Single-phase motors are used in low-power, cost-effective, variable-speed applications. As a replacement to traditional single-phase synchronous motors with magnets on the rotor, single-phase flux reversal motors (FRMs) with a rugged and reliable toothed rotor are considered for the high-speed applications. However, torque pulsations of single-phase motors are high. The aim of this work is to minimize the torque ripple and increase its minimum instantaneous value, as well as to reduce FRM losses. To solve this problem, an asymmetric rotor is used, and an objective function is proposed, which includes parameters characterizing the pulsations of the torque and the loss of FRM for two load conditions. To optimize the single-phase FRM and minimize the objective function, the Nelder–Mead method was applied. The optimization criterion was selected to maximize the efficiency, to reduce the torque ripple, and to the avoid the negative torque in a wide range of powers at the fan load (quadric dependence of torque on speed). Two operating loading modes are considered. After two stages of optimization, the peak-to-peak torque ripple in the FRM in the rated loading mode decreased by 1.7 times, and in the mode with reduced load by 2.7 times. In addition, in the FRM before optimization, the torque has sections with negative values, and in the FRM after optimization, the torque is positive over the entire period. Although losses in the rated mode increased by 4%, when underloaded, they decreased by 11%, which creates an additional advantage for applications that work most of the time with underload.

Investigation of Systematic Efficiency in a High-Speed Single-Phase Brushless DC Motor Using Multi-Physics Analysis for a Vacuum Cleaner

2019 ◽  
Vol 55 (7) ◽  
pp. 1-6 ◽  
Author(s):  
Yongha Choo ◽  
Hongsik Hwang ◽  
Jeonghyun Cho ◽  
Changhwan Kim ◽  
Jeongmyung Kim ◽  
...  
Keyword(s):  
High Speed ◽  
Single Phase ◽  
Dc Motor ◽  
Brushless Dc Motor ◽  
Vacuum Cleaner ◽  
Brushless Dc
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