Comparisons of Rare-Earth and Rare-Earth-Free External Rotor Permanent Magnet Assisted Synchronous Reluctance Motors

Bonthu, Sai Sudheer Reddy; Arafat, Akm; Choi, Seungdeog

doi:10.1109/tie.2017.2711580

Cited by 64 publications

(26 citation statements)

References 30 publications

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“…Looking to the stator frame of the counterpart induction motor of a similar power range, the stator frame size 90 having the listed specifications in Table 1 is selected for the FMSynRM. The design of the rotor of FMSynRM is not easy and requires accurate analytical or numerical models [27]. This is because several geometrical rotor parameters should be designed, see Figure 2a, and these parameters have a high effect upon the machine performance.…”

Section: Motor Designmentioning

confidence: 99%

“…An optimization technique using the gradient-free Nelder-Mead method is coupled with FEM to select the optimal rotor parameters that achieve the target motor power rating, keeping the torque ripple within the permissible range (<10%). Details of the complete design of FMSynRM is reported in [27]. A sketch of the optimal FMSynRM geometry is shown in Figure 2b.…”

Section: Motor Designmentioning

confidence: 99%

“…To evaluate the performance of the suggested PVWPS, the complete dynamic mathematical model is necessary. Briefly, the mathematical equations of the various components in the suggested PVWPS is mentioned here [27,28].…”

Section: Modelling Of the Suggested Pvwpsmentioning

confidence: 99%

“…Therefore, several countries have put a goal to electrify and use green energy in all industrial applications [7][8][9][10]. Solar is one of the researcher in the last few years [26][27][28][29][30]. This is thanks to their advantages such as about 75% of the delivered torque results from the rotor saliency.…”

Section: Introductionmentioning

confidence: 99%

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Modelling and Design Methodology of an Improved Performance Photovoltaic Pumping System Employing Ferrite Magnet Synchronous Reluctance Motors

et al. 2020

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This paper proposes a novel photovoltaic water pumping system (PVWPS) with an improved performance and cost. This system doesn’t contain a DC-DC converter, batteries nor rare-earth motors. Removing the aforementioned components will reduce the whole cost and increase the reliability of the system. For enhancing the performance of the PVWPS, a ferrite magnet synchronous reluctance motor (FMSynRM) is employed. Besides, the motor inverter is utilized to drive the motor properly and to extract the maximum available power of the PV system. This is performed using a suggested control strategy that controls the motor inverter. Furthermore, to show the effectiveness of the proposed PVWPS, the performance of the proposed system is benchmarked with a PVWPS that is employing a pure SynRM. Moreover, the complete mathematical model of the system components and the control is reported. It is proved that the flow rate employing the proposed system is increased by about 29.5% at a low irradiation level (0.25 kW/m2) and 15% at a high irradiation level (1 kW/m2) compared to the conventional solar system using a pure synchronous reluctance motor (SynRM). An experimental laboratory test bench is built to validate the theoretical results presented in this research work. Good agreement between the theoretical and the experimental results is proved.

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Section: Motor Designmentioning

confidence: 99%

Section: Motor Designmentioning

confidence: 99%

Section: Modelling Of the Suggested Pvwpsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling and Design Methodology of an Improved Performance Photovoltaic Pumping System Employing Ferrite Magnet Synchronous Reluctance Motors

et al. 2020

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“…In PMSMs, the limitations are cost and the adoption of rare-earth PMs [6]. Hence, interest has arisen on PM-assisted synchronous reluctance machines (PMaSynRMs), which is characterised by the usage of less rare-earth magnets or inexpensive PMs [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Fast calculation method of optimal flux‐barrier‐end position for torque ripple minimisation in SynRMs with and without PMs

Chen

Zhao

2020

IET Electric Power Applications

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This study presents a simplified analytical model for synchronous reluctance machines (SynRMs) with and without permanent magnets (PMs) to rapidly investigate the influences of flux-barrier-end angles or salient poles angles on the torque ripple. With the proposed method, the optimal flux-barrier-end angles or salient poles angles can be computed directly to eliminate a specific torque harmonic. To further minimise two main low-order torque harmonics, a compensation strategy is adopted by choosing different optimised flux-barrier-end angles or salient poles angles in rotor adjacent poles. Moreover, two types of optimal combinations are evaluated and compared with transient finite element analysis. The results show the torque ripple can be significantly reduced in the optimised SynRMs with and without PMs and the average torque loss is acceptable. Finally, the prototype motor of five-phase SynRMs without PM is built and tested to validate the analyses.

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Permanent Magnet Assisted Synchronous Reluctance Motor

Ramesh

Pradhap

Lenin

2023

Power Converters, Drives and Controls for Sustainable Operations

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Comparisons of Rare-Earth and Rare-Earth-Free External Rotor Permanent Magnet Assisted Synchronous Reluctance Motors

Cited by 64 publications

References 30 publications

Modelling and Design Methodology of an Improved Performance Photovoltaic Pumping System Employing Ferrite Magnet Synchronous Reluctance Motors

Modelling and Design Methodology of an Improved Performance Photovoltaic Pumping System Employing Ferrite Magnet Synchronous Reluctance Motors

Fast calculation method of optimal flux‐barrier‐end position for torque ripple minimisation in SynRMs with and without PMs

Permanent Magnet Assisted Synchronous Reluctance Motor

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