Simplified Analytical Model for Rapid Evaluation of Interior PM Traction Machines Considering Magnetic Nonlinearity

Hoang, Khoa Dang

doi:10.1109/ojies.2020.3042950

Cited by 7 publications

(10 citation statements)

References 33 publications

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“…Based on the Ferrite IPM machine concept with axial magnet in [2] and [3], a Ferrite IPM traction machine has been developed and validated. The machine specifications are described in Fig.…”

Section: Hybrid Rotor Conceptmentioning

confidence: 99%

“…1(a), the designed machine has 10 poles and 60 stator slots. It is noted that to maximize the axial PM contribution, the ratio of axial length to rotor diameter of the Ferrite IPM machine should be minimized [2], [3]. Therefore, a multi-stack Ferrite IPM rotor is adopted.…”

Section: Hybrid Rotor Conceptmentioning

confidence: 99%

“…Due to high-efficiency and high-speed operation achievement, interior permanent magnet (IPM) machine is often employed for traction applications of which performances are validated via a specific driving cycle [1], [2]. However, because of the high-cost as well supply-chain uncertainties of rare-earth PM, non-rare-earth PM traction machine technology is attracting significant interests from both academy and industry.…”

Section: Introductionmentioning

confidence: 99%

“…However, in the high-speed operation region with field-weakening (FW) control, PM machines are subject to high copper losses due to high d-axis current required for maintaining a constant voltage magnitude under a specific DClink voltage [1]. In [2], it was shown that a high injected d-axis current in IPM traction machine may result in high spatial harmonics leading to significant iron-loss. On the other hand, synchronous reluctance (SynR) machine with non-PM employment, simple and robust rotor structure, as well as low-cost manufacture is also an attractive candidate for development of non-rare-earth PM traction machine concept [5].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance analysis of a hybrid ferrite IPM/SynR traction machine with axially combined rotor structure

Hoang¹,

Yu²,

Atallah³

et al. 2022

11th International Conference on Power Electronics, Machines and Drives (PEMD 2022)

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show abstract

Section: Hybrid Rotor Conceptmentioning

confidence: 99%

Section: Hybrid Rotor Conceptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance analysis of a hybrid ferrite IPM/SynR traction machine with axially combined rotor structure

Hoang¹,

Yu²,

Atallah³

et al. 2022

11th International Conference on Power Electronics, Machines and Drives (PEMD 2022)

View full text Add to dashboard Cite

show abstract

“…Results are validated with finite elements and utilized to improve the torque harmonic characteristics of an existing industrialized machine. This is because finite elements accurately predict experimental results across a broad range of machines [33][34][35][36] and have been utilized to evaluate and compare machine types [37][38][39] and validate analytical solutions [40][41][42][43][44][45][46][47][48][49][50]. Section 2 introduces the topics relevant to the design of IPM motor construction and control.…”

Section: Introductionmentioning

confidence: 99%

Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines

Hayslett

Strangas

2021

Energies

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A computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torque harmonics. The placement of traditional rotor features along with sculpt features are utilized to minimize torque ripple and maximize average torque. We extend the winding function theory to include the IPM rotor’s primary and secondary reluctance paths and the non-homogeneous airgap of the rotor sculpt features. A new analytical winding function model of the single-V IPM machine is introduced, which considers the sculpted rotor and how this model can be used in the design approach of machines. Results are validated with finite elements. Rotor feature trends are established and utilized to increase design intuition and reduce dependency upon the lengthy design of experiment optimization processes.

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Torque ripple suppression method of high saturation permanent magnet synchronous motor based on current injection method

Zhang,

Yu,

et al. 2024

IET Power Electronics

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Torque ripple is an important factor affecting the smoothness of permanent magnet synchronous motor. However, for high saturation permanent magnet synchronous motor (HSPMSM), the flux linkage of permanent magnet is nonlinear, which leads to poor effect of traditional torque ripple suppression methods. Therefore, by systematically considering the amplitude and phase changes of the permanent magnet flux link‐age for the first time, this paper analyzes the torque ripple mechanism of high saturation motors and establishes a corresponding mathematical model. To minimize the loss caused by harmonic currents, two torque ripple suppression methods are proposed: one based on the NSGA‐II algorithm and the other based on an analytical method. Finally, the effectiveness of the two algorithms is verified by the experimental comparison. The experimental results show that compared with the traditional methods, the two algorithms can effectively suppress the torque ripple under the premise of considering the influence of the motor magnetic saturation on the flux linkage and inductance, and improve the output torque smoothness of HSPMSM.

show abstract

Simplified Analytical Model for Rapid Evaluation of Interior PM Traction Machines Considering Magnetic Nonlinearity

Cited by 7 publications

References 33 publications

Performance analysis of a hybrid ferrite IPM/SynR traction machine with axially combined rotor structure

Performance analysis of a hybrid ferrite IPM/SynR traction machine with axially combined rotor structure

Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines

Torque ripple suppression method of high saturation permanent magnet synchronous motor based on current injection method

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