Comparative study of hybrid-PM variable-flux machines with different series PM configurations
Sign Up to like & getrecommendations! Published in 2019 at "AIP Advances"
DOI: 10.1063/1.5129828
Abstract: Aiming at extending the operating speed range and increasing the machine efficiency, three series-configuration hybrid-permanent-magnet variable-flux machines (HPM-VFMs) with both low and high coercive-force magnets are proposed. The magnetization characteristics of the machine with different… read more here.
Keywords: machine; range; magnet; speed ... See more keywords
A Novel Variable Flux Spoke Type Permanent Magnet Motor With Swiveling Magnetization for Electric Vehicles
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3182115
Abstract: This article proposes a novel variable-flux spoke-type permanent magnet synchronous motor (VFS-PMSM), whose air gap flux density can be adjusted by “swiveling” magnetic pole directions in permanent magnet (PM). This is distinctive from conventional methods… read more here.
Keywords: magnet; flux; coercivity; motor ... See more keywords
A Synthetic Frozen Permeability Method for Torque Separation in Hybrid PM Variable-Flux Machines
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2018.2793202
Abstract: This paper proposes a synthetic frozen permeability method (SFPM) to separate torque components of a hybrid permanent magnet variable-flux machine (HPM-VFM). The machine in this study employs an Alnico magnet as a variable permanent magnet… read more here.
Keywords: variable flux; frozen permeability; permeability method; torque ... See more keywords
A Novel Variable Flux Memory Machine With Separated Series--Parallel PM Structure
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3174293
Abstract: Variable flux memory machine (VFMM) with hybrid magnetic circuit (HMC) is regarded as a potent solution for electric vehicles owing to its flexible flux control and fine accidental demagnetization withstand capability. However, existing HMC-VFMMs generally… read more here.
Keywords: topology; series parallel; flux memory; memory machine ... See more keywords
Analysis and Reduction of Unipolar Leakage Flux in Series Hybrid Permanent-Magnet Variable Flux Memory Machines
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2017.2706764
Abstract: A series hybrid variable flux memory (VFM) machine employing two kinds of permanent magnets (PMs) on alternate rotor poles is investigated. This VFM machine features controllable PM flux and thus good flux-weakening capability, as well… read more here.
Keywords: leakage flux; series hybrid; series; flux memory ... See more keywords
Torque Ripple Reduction for 12-Stator/10-Rotor-Pole Variable Flux Reluctance Machines by Rotor Skewing or Rotor Teeth Non-Uniformity
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2017.2712609
Abstract: Variable flux reluctance machines (VFRMs) are interesting candidates to substitute permanent-magnet synchronous machines in many applications. However, they suffer from large torque ripple. In this paper two methods, stepped rotor skewing and rotor teeth non-uniformity,… read more here.
Keywords: flux reluctance; rotor skewing; torque ripple; rotor ... See more keywords
Analysis of a Novel Hybrid-PM Variable-Flux Machine Using New Magnet Material CeFeB
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2019.2894700
Abstract: Electric vehicle (EV) is a promising technology for saving fossil energy and reducing pollution. Hybrid-permanent-magnet (PM) variable-flux machine is a competitive candidate for EV propulsion since it has wide speed range and high efficiency at… read more here.
Keywords: novel hybrid; variable flux; machine; hybrid variable ... See more keywords
A High-Torque-Density Variable-Flux Memory Machine Utilizing Novel (Ce, Nd)-Fe-B Magnets
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2020.3006272
Abstract: Variable-flux memory machines (VFMMs) are considered as promising candidate in adjustable speed drive applications. However, the exploration of VFMMs with acceptable magnetization state (MS) regulating current and high-torque density is still a challenging issue. This… read more here.
Keywords: flux memory; torque density; variable flux; high torque ... See more keywords
Design and Analysis of Variable Flux Arc Permanent Magnet Motor With Multiple Excitations
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2021.3072432
Abstract: Arc permanent magnet (PM) motors show good prospects in large telescope application. To explore an appropriate arc PM motor (APMM) used in the large telescope drive, this article investigates a variable flux APMM (VFAPMM) with… read more here.
Keywords: dpm vfapmm; permanent magnet; variable flux; motor ... See more keywords
Design Methodologies for Variable-Flux Machines With Extra Torque–Speed Range
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2021.3087180
Abstract: The design methodologies for variable-flux machines (VFMs), which can illustrate the relationship between the extra torque–speed range and the machine properties of VFMs, are proposed in this article based on the analytical and graphic methods.… read more here.
Keywords: methodology; variable flux; methodologies variable; design methodologies ... See more keywords
Characterization of a Variable Flux Machine for Transportation Using a Vector-Controlled Drive
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Transportation Electrification"
DOI: 10.1109/tte.2017.2788200
Abstract: Variable flux machines (VFMs) have one more dimension for the control and performance improvement of the drive. The magnet flux in the VFM can be controlled to optimize motor performance. Software packages used in the… read more here.
Keywords: machine; vector; flux machine; performance ... See more keywords