Steady-state model of a single-phase flux reversal motor

Prakht, Vladimir; Dmitrievskii, Vladimir; Kazakbaev, Vadim; Sarapulov, Sergey

doi:10.1109/rtucon.2017.8124837

Cited by 5 publications

(10 citation statements)

References 6 publications

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“…A detailed description of the mathematical model for the high-torque single-phase FRM powered by piecewise constant voltage is disclosed in [8]. The magnetic flux at different rotor positions is determined by integrating the voltage over time.…”

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

“…Therefore, the 2D magnetostatic boundary value problems are solved for the current position pairs (Figure 4). In this paper and in [8], the magnetic flux Φ and current density J are defined by the following expressions:…”

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

“…In [8], since the flux Φ is found by integrating the piecewise constant voltage and is considered to be given by solving the magnetostatic boundary problem for each rotor position, Equation (1) is treated as an additional equation, and the current defining the current density according to Equation (2) is taken as an additional variable.…”

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

“…In contrast to [8], herein the mathematical model is simplified by the fact that the currents are assumed to be predetermined and sinusoidal, and additional equations are not required. After solving the boundary value problem with the current density given Equation (2) for each rotor position, the fluxes Φ can be determined using the expression (1).…”

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

“…After solving the boundary value problem with the current density given Equation (2) for each rotor position, the fluxes Φ can be determined using the expression (1). Other aspects of the mathematical model, such as calculating the instantaneous torque of the single-phase FRM as well as the core and winding losses, are described in [8].…”

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

See 4 more Smart Citations

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

et al. 2019

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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.

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Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

Section: The Mathematical Model Of the Single-phase Frmmentioning

confidence: 99%

See 3 more Smart Citations

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

et al. 2019

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Comparison of High-Speed Single-Phase Flux Reversal Motor and Hybrid Switched Reluctance Motor

Prakht

Dmitrievskii

Kazakbaev

et al. 2019

2019 20th International Symposium on Power Electronics (Ee)

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

et al. 2020

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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.

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Steady-state model of a single-phase flux reversal motor

Cited by 5 publications

References 6 publications

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

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

Comparison of High-Speed Single-Phase Flux Reversal Motor and Hybrid Switched Reluctance Motor

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

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