Design and optimization of outer-rotor permanent magnet flux switching motor using transverse segmental rotor shape for automotive applications

Mbadiwe, Enwelum I.; Sulaiman, Erwan

doi:10.1016/j.asej.2020.08.007

Cited by 15 publications

(5 citation statements)

References 36 publications

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“…• Good disturbance rejection capability with reduced torque ripple With these objectives under consideration, different configurations of FSM are under research to support applications like hybrid electric vehicles [5], [6], [7], [8], [9], [10], [11], [70] locomotive traction [12], [13], [14], downhole [15], wind energy conversion systems [16], [17], [18], [19], [71], aerospace [20], [21], elevator [22] and household appliances [23], [24], [25], [26]. Although there had been many advancements in the design of FSM, researchers started to explore controller algorithms for FSM only after the year 2008 [30].…”

Section: Figurementioning

confidence: 99%

Review of Control Topologies for Flux Switching Motor

Merlyn

Lenin

2023

IEEE Access

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Flux switching Motor (FSM) was invented in the 19 th century but started gaining importance after 2000. The simple structure and moderate cost of FSM, in comparison with existing commutated Direct Current (DC) and Permanent Magnet Brushless Direct Current (PMBLDC) motors, have made it attractive for contemporary applications. Currently, FSM is employed in research applications like automobiles, domestic appliances, power generation, etc. To make FSM a viable candidate for these applications, modifications are made to the design, power converters, and control systems of FSM. This article comprehensively reviews the various control topologies adopted for FSM, which encompasses the control of torque and speed. Different control algorithms like 1) linear controllers, 2) sensorless techniques, 3) predictive controllers, and 4) optimization techniques are discussed extensively based on existing literature. Further, a case study is carried out using these control algorithms, and the simulation results are analyzed.

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Section: Figurementioning

confidence: 99%

Review of Control Topologies for Flux Switching Motor

Merlyn

Lenin

2023

IEEE Access

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“…Cogging torque is the cause of torque ripples, acoustic noise, vibration, unwanted fluctuation in speed and reduced lifetime of EEFSM [20]. Cogging torque for the proposed design and conventional design is plotted in Figure 11 (a) and arranged in Table 4.…”

Section: B Cogging Torque and Torque Ripples Analysismentioning

confidence: 99%

“…Overlapped windings produce high copper losses and segmented rotors cannot be used for high-speed applications. In [19] all these concerns have been addressed but, the doubly salient structure of FSM is the cause of high air-gap permeance variation and torque ripples which produce acoustic noise, unwanted fluctuation in speed, vibration and reduce motor lifetime [20]. Comparative illustration of existing topologies is organized in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Torque Ripples Reduction and Performance Analysis of Electrically Excited Flux Switching Motor

Khan

Ullah

et al. 2022

IEEE Access

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Torque ripples cause acoustic noise, fluctuation in speed, vibration, and reduce the lifetime of the motor. The double salient structure of Flux Switching Motor (FSM) has a high air-gap permeance variation that produces high torque ripples. This paper presents an analytical model to reduce air-gap permeance variation and torque ripples of the proposed octane modular stator 8slots-6poles single-phase Electrically Excited (EE) FSM. Furthermore, the rotor pole shaping technique is used to minimize the airgap permeance variation and therefore torque ripples of the proposed design are reduced. The electromagnetic performance of EEFSM is analyzed via the Finite Element Analysis (FEA) method. For the proposed design magnetic flux harmonics are reduced by 71% and back-EMF harmonics are suppressed by 48.5%. Torque ripples of the proposed EEFSM are reduced by 20%, cogging torque diminished is by 42.7% and average torque is enhanced by 5.8%. Finally, the prototype is fabricated and tested experimentally. Calculated values and experimental results are in good agreement and the difference is 3.5%-5%.INDEX TERMS Torque ripples reduction, flux switching motor, single phase, electrically excited, analytical model, electromagnetic performance.

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“…Because of the rotor's simple and robust structure, improved heat dissipation, greater reliability and brushless operation, transferring the excitation sources from rotor to stator have recently received considerable attention [3]. Flux Switching Motor (FSM) accommodates excitation sources (PM and field winding) along with armature winding on the static part (stator), and the rotor is free of these excitation sources, which makes the rotor robust and simple [4], [5]. Although both the Doubly Salient PM Motor (DSPMM) and the Flux Reversal PM Motor (FRPMM) also have simple and robust rotor structures; however, the torque density of the FSPMM is higher due to bi-polar flux linkage, whereas the flux linkage of the DSPMM and FRPMM is unipolar which causes lower torque density [6].…”

Section: Introductionmentioning

confidence: 99%

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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Design and optimization of outer-rotor permanent magnet flux switching motor using transverse segmental rotor shape for automotive applications

Cited by 15 publications

References 36 publications

Review of Control Topologies for Flux Switching Motor

Review of Control Topologies for Flux Switching Motor

Torque Ripples Reduction and Performance Analysis of Electrically Excited Flux Switching Motor

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

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