Results 21 to 30 of about 1,107,932 (402)

An Improved Analytical Model of Magnetic Field in Surface-Mounted Permanent Magnet Synchronous Motor With Magnetic Pole Cutting

open access: yesIEEE Access, 2021
This paper presents an analytical model for predicting the magnetic field performance of permanent magnet synchronous motor with permanent magnet cutting.
Lianlian Gao   +5 more
doaj   +1 more source

Performance comparison between Surface Mounted and Interior PM motor drives for Electric Vehicle application [PDF]

open access: yes, 2012
Electric Vehicles make use of permanent magnet synchronous traction motors for their high torque density and efficiency. A comparison between interior permanent magnet (IPM) and surface mounted permanent magnet (SPM) motors is carried out, in terms of ...
Boazzo, Barbara   +3 more
core   +1 more source

Electromagnetic Vibration and Noise Comparison of Amorphous Metal PMSMs and Silicon Steel PMSMs

open access: yesIEEE Access, 2019
This paper investigates the differences in the electromagnetic vibration and noise of an amorphous metal (AM) permanent magnet synchronous machines (PMSMs) and silicon steel (SS) PMSMs. The electromagnetic vibration and noise of an AM PMSM and an SS PMSM
Shengnan Wu   +3 more
doaj   +1 more source

Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]

open access: yes, 2014
The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful
Sergeant, Peter, Van den Bossche, Alex
core   +2 more sources

Progress and prospects of hard hexaferrites for permanent magnet applications

open access: yes, 2020
Permanent magnets based on hard hexaferrite represent the largest family of magnets being used today by volume. They generate moderate remanence induction, but present crucial advantages in terms of availability, cost, resistance to demagnetization and ...
C. de Julián Fernández   +5 more
semanticscholar   +1 more source

A Complete Quasi-3-D Analytical Model of No-Load Magnetic Field of Double-Sided Slotted AFPMMs Considering End Effect

open access: yesIEEE Access, 2018
This paper presents a complete quasi-3-D analytical model combining the solution of Maxwell's equations and the magnetic equivalent circuit for the determination of no-load magnetic field distributions of slotted axial flux permanent magnet machines ...
Wenming Tong   +3 more
doaj   +1 more source

Analysis and design optimization of an improved axially magnetized tubular permanent-magnet machine [PDF]

open access: yes, 2004
This paper describes the analysis and design optimization of an improved axially magnetized tubular permanent-magnet machine. Compared with a conventional axially magnetized tubular machine, it has a higher specific force capability and requires less ...
Howe, D., Jewell, G.W., Wang, J.B.
core   +1 more source

Research on the Airflow and Thermal Performance in a Large Forced Air-Cooled Permanent Magnet Synchronous Machine

open access: yesIEEE Access, 2019
In this paper, the airflow and temperature distribution characteristics of a 1.65MW permanent magnet synchronous machine (PMSM) adopting a totally enclosed self-circulation (TESC) axial ventilation system (AVS) are studied by numerical methods.
Wenming Tong, Shengnan Wu, Renyuan Tang
doaj   +1 more source

The eddy current loss segmentation model of permanent magnet for temperature analysis in high‐speed permanent magnet motor

open access: yesIET Power Electronics, 2021
The rotor eddy current loss of high‐speed permanent magnet motor has an important influence on the temperature distribution of permanent magnet. In traditional method, the unbalanced distribution of eddy current in permanent magnet is ignored, and the ...
Meiwei Zhang   +3 more
doaj   +1 more source

Position estimation delays in signal injection-based sensorless PMSM drives [PDF]

open access: yes, 2012
The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency ...
Altomare, A.   +3 more
core   +1 more source

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