Analysis of Multi-Phase and Multi-Layer Factional-Slot Concentrated-Winding on PM Eddy Current Loss Considering Axial Segmentation and Load Operation

Chen, Qixu; Liang, Deliang; Jia, Shaofeng; Wan, Xiaobo

doi:10.1109/tmag.2018.2841874

Cited by 31 publications

(13 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was shown that the influence of the pole coverage on power losses was visible only at lower harmonic waves. 3D FEA was used to investigate the influence of multi-phase and multi-layer windings of surface-mounted PMSMs on the PMs eddy-current losses [117]. Different windings layouts and layers numbers were compared.…”

Section: Fe Magneto-dynamic Methodmentioning

confidence: 99%

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Ouamara

Dubas

2019

MCA

View full text Add to dashboard Cite

Eddy-current analysis is an important research field. This phenomenon occurs in multiple areas and has several applications: electromagnetic braking, repulsive effects, levitation, etc. Thereby, this paper is limited to eddy-current study in rotating electrical machines. In the design process, if the permanent-magnet (PM) loss calculation is very important, the overheating due to eddy-currents must be taken into account. The content of this paper includes sources, calculation methods, reduction techniques, and thermal analysis of PM eddy-current losses. This review aims to act as a guide for the reader to learn about the different aspects and points to consider in studying the eddy-current.

show abstract

Section: Fe Magneto-dynamic Methodmentioning

confidence: 99%

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Ouamara

Dubas

2019

MCA

View full text Add to dashboard Cite

show abstract

“…It can be observed that iron loss of proposed I motor increases more rapidly versus speed compared with the conventional and proposed II motors. In addition, the PM eddy current losses of the three motors exhibit similar variation trend, which results from the identical slot‐pole combination, winding layout and motor volume [17–20]. Therefore, the efficiency of the conventional motor is inferior to that of the proposed FM and PSFM motors as shown in Fig.…”

Section: Performance Analysismentioning

confidence: 99%

Design and analysis of a new partitioned stator flux‐modulation motor for direct drive applications

Zhu

Zhao

et al. 2019

IET Electric Power Applications

View full text Add to dashboard Cite

In this study, in order to improve the torque density of the conventional permanent magnet (PM) motor, a flux‐modulation (FM) motor employing the magnetic gear effect is proposed. However, the FM motor has space conflict in the finite stator area, which limits the further improvement of torque density. Therefore, a new partitioned stator flux‐modulation (PSFM) motor with separated PM excitation and armature windings is artfully proposed. The main design parameters influence on the average electromagnetic torque in the proposed PSFM motor is investigated, together with the proposed FM motor. Furthermore, based on the optimal designs for the highest average electromagnetic torque in this study, the electromagnetic performances of the three motors, including back‐electromotive force performances, torque characteristics and several other performances with respect to speed are analysed by finite‐element method. Additionally in the PSFM motor, torque generation mechanism and the reduction method of torque ripple are theoretically analysed. Results show that the proposed PSFM motor exhibits 29.1% higher torque density than the FM motor and 87.6% higher than the conventional PM motor with reduced torque ripple and superior loss performance. Finally, the proposed PSFM motor is prototyped for verification.

show abstract

“…The other kind of method is to optimize winding layouts. The winding coils with unequal turns per coil side, a multi-layer winding and a dual three-phase winding are used to reduce the sub-harmonics, but it is not effective on slot harmonics [17][18][19][20][21][22][23]. Recently, some researchers use stator shifting to reduce a certain slot harmonic [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Archives of Electrical Engineering

2022

View full text Add to dashboard Cite

Fractional-slot concentrated-winding permanent magnet synchronous machines (FSCW-PMSMs) have a good prospect of application in the drive system of electric and hybrid electric vehicles. However, the armature magnetomotive force (MMF) of FSCW-PMSM contains a large number of space harmonics, which induce large magnet eddycurrent loss (ECL). To solve this problem, a dual three-phase 10-pole and 24-slot winding layout is proposed. MMF harmonic analysis shows that the 1st, 7th and 17th space-harmonic winding factors of the proposed winding can be reduced by 100%, 87% and 87% respectively, compared with a dual three-phase 10-pole and 12-slot winding. Electromagnetic performances of the proposed machine under rated sinusoidal current supply and space vector pulse-width-modulated (SVPWM) voltage supply are investigated based on 2D finite-element analysis. It is shown that the proposed machine can meet the requirement of torque and efficiency in the full speed range. Especially, magnet ECL can be reduced greatly due to the reduction of the 7th and 17th space harmonics.

show abstract

Analysis of Multi-Phase and Multi-Layer Factional-Slot Concentrated-Winding on PM Eddy Current Loss Considering Axial Segmentation and Load Operation

Cited by 31 publications

References 19 publications

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Design and analysis of a new partitioned stator flux‐modulation motor for direct drive applications

Archives of Electrical Engineering

Contact Info

Product

Resources

About