Analysis of a Novel Transverse Laminated Rotor Flux Switching Machine

Sangdehi, Seyed Milad Kazemi; Abdollahi, Seyed Ehsan; Gholamian, S. Asghar

doi:10.1109/tec.2018.2795638

Cited by 22 publications

(2 citation statements)

References 23 publications

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“…The aforementioned advantages make PMSMs a better potential candidate in comparison with brushless direct current motors-another type of PM machines being used in washing machines-whose higher noise and vibration, high profile of harmonic content and relatively lower power to weight ratio are considered to be their major drawbacks [11]. Various topologies of PM motors have been proposed in recent decades based on the position of the magnets, which can be either on the rotor (rotor-PM) or on the stator (stator-PM) [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Performance optimisation of a segmented outer rotor flux switching permanent magnet motor for direct drive washing machine application

Saghin

Ghaheri

Shirzad

et al. 2021

IET Electric Power Appl

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Electrical machines are widely used in home appliances, the performance of which is mostly related to the quality function of the electrical machines. What has been used so far in home appliances brought with themselves a wide assortment of advantages and disadvantages. With the aim to overcome the drawbacks of the previously implemented electrical motors in washing machines, a new configuration of flux switching permanent magnet motor (FSPM) with the segmented outer rotor (SOR-FSPM) is proposed benefitting from a direct driven drum. To reduce the cogging torque as well as torque ripple and to improve the total harmonic distortion, cutting the stator in a way to lower overlapping between the rotor and stator pole, inserting notches into the poles of the rotor to modify the air gap between the stator teeth and the rotor segments are proposed. The Taguchi method and sensitivity analysis are further applied to find the best combination set of changes in such a way to smoothen the chart showing reluctance between stator and rotor and fix the zero-point crossing of the flux linkages in different rotor positions. Finally, the proposed SOR-FSPM is prototyped, and experimental results along with the finite element method results are discussed and compared in order to verify the design process. K E Y W O R D SAC motors, brushless machines, design of experiments, finite element analysis, optimisation, permanent magnet machines, Taguchi methodsThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Section: Introductionmentioning

confidence: 99%

Performance optimisation of a segmented outer rotor flux switching permanent magnet motor for direct drive washing machine application

Saghin

Ghaheri

Shirzad

et al. 2021

IET Electric Power Appl

View full text Add to dashboard Cite

show abstract

“…Although the benefits of a FSPM machine outweigh its drawbacks, these disadvantages could be significant issues on competitive markets. To diminish the torque ripple of FSPM machines, some approaches on rotor designing process are used like rotor pole pairing and rotor pole skewing [9] in a salient pole rotor, and rotor pole notching [10] and transverse laminations [11] in a segmented one. Moreover, to reduce FSPM machine costs, the ferrite magnet is proposed as a suitable alternative to the rare‐earth one which is because the price of a ferrite magnet is almost 10% of the price of a REPMs [12] in the same size.…”

Section: Introductionmentioning

confidence: 99%

Analysis and optimization of a 12/14 double‐stator flux‐switching machine using low cost magnet

Sangdehi

Asadi

Abdollahi

et al. 2020

IET Electric Power Applications

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Flux‐switching permanent magnet (FSPM) machine attracted a great deal of attention for industrial applications owing to its high efficiency and high torque/power densities. However, on the downside, it suffers from high cost of rare‐earth permanent magnets (REPMs). Although employing ferrite magnets remarkably reduces the cost of material, ferrite magnet lower energy product will negatively affect the electromagnetic performance of this machine. As a solution, the double‐stator flux‐switching permanent magnet (DSFSPM) machine has been presented in this paper to improve the electromagnetic performance of a conventional ferrite based FSPM counterpart. In this regard, a new analytical approach followed by a brief discussion of the influence of rotor pole number on the electromagnetic performance of two DSFSPM machines with 10‐ and 14‐pole rotors are studied. It is shown that 12/14 DSFSPM machine with ferrite magnets generates almost 30% more developed torque than the other with 10‐pole rotor. Then, a comprehensive comparison on the electromagnetic performances of a 12/14 DSFSPM machine with ferrite magnets, and two 12/14 FSPM machines with REPMs and ferrite magnets are investigated by finite element method. Besides, a cost study highlights the monetary beneficial of the proposed 12/14 DSFSPM machine for the competitive EVs market. Furthermore, a laboratory scale 12/14 DSFSPM machine is designed based on analytical approach, optimized by Taguchi optimization method, and experimentally tested to validate both analytical and FEM results.

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Performance Analysis of a Modular E-Shaped Stator Hybrid Excited Flux Switching Motor With Flux Gaps

et al. 2022

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This paper proposes a new modular hybrid excited flux switching motor (MHEFSM) with flux gaps, adding the fault-tolerant capability to the proposed motor. The proposed motor uses an E-Shaped stator, as the middle teeth of E-core produce fault-tolerant capability, and in C-core, this capability is eradicated. The no-load flux linkage is calculated by the magnetic network model (MNM) to reduce time and disk storage. The drawback of the constant flux linkage of PM motors is overcome by employing field excitation (FE). The FE helps in regulation flux at higher speeds. The motor leading geometry variables are optimized by using Genetic Global Optimization (GGO). The GGO helped in refining the structure of the motor and has improved the flux linkage by 68.18%, average torque and torque density by 62.35% each, reduced torque ripples by 20.62%, and cogging torque by 18.52%. The volume of permanent magnet (PM) in the proposed MHEFSM is reduced by 36.24%, and 48.49% higher average torque and torque density is obtained compared to the state of art motor proposed in the literature. Furthermore, a 3D analysis of the proposed MHEFSM is done to further evaluate the electromagnetic performance.INDEX TERMS Finite element analysis, flux gaps, modular stator, variable flux machine, genetic optimization.

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Analysis of a Novel Transverse Laminated Rotor Flux Switching Machine

Cited by 22 publications

References 23 publications

Performance optimisation of a segmented outer rotor flux switching permanent magnet motor for direct drive washing machine application

Performance optimisation of a segmented outer rotor flux switching permanent magnet motor for direct drive washing machine application

Analysis and optimization of a 12/14 double‐stator flux‐switching machine using low cost magnet

Performance Analysis of a Modular E-Shaped Stator Hybrid Excited Flux Switching Motor With Flux Gaps

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