Results 41 to 50 of about 65,441 (342)

Novel Mechanical Flux-Weakening Design of a Spoke-Type Permanent Magnet Generator for Stand-Alone Power Supply

open access: yesApplied Sciences, 2023
In this paper, a novel mechanical flux-weakening design of a spoke-type permanent magnet generator for a stand-alone power supply is proposed. By controlling the position of the adjustable modulator ring mechanically, the total induced voltage, i.e., the
Mingyuan Jiang, Shuangxia Niu
doaj   +1 more source

Self-learning Direct Flux Vector Control of Interior Permanent Magnet Machine Drives [PDF]

open access: yes, 2017
This paper proposes a novel self-learning control scheme for interior permanent magnet synchronous machine (IPMSM) drives to achieve maximum torque per ampere (MTPA) operation in constant torque region and voltage constraint maximum torque per ampere ...
Koc, M., Sun, T., Wang, J.
core   +1 more source

Wide Speed Range Operation Strategy of Indirect Matrix Converter–Surface Mounted Permanent Magnet Synchronous Motor Drive

open access: yesEnergies, 2021
In order to expand the speed range for an indirect matrix converter–surface mounted permanent magnet synchronous motor drive (IMC-SPMSM), a wide speed range operation control strategy based on a flux-weakening control and an over-modulation method is ...
Nuofan Zou   +3 more
doaj   +1 more source

Atmospheric Circulation Response to Short-Term Arctic Warming in an Idealized Model [PDF]

open access: yes, 2020
Recent Arctic sea ice loss in fall has been posited to drive midlatitude circulation changes into winter and even spring. Past work has shown that sea ice loss can indeed trigger a weakening of the stratospheric polar vortex, which can lead to delayed ...
Hell, Momme C.   +2 more
core   +2 more sources

An enhanced feedforward flux weakening control for high‐speed permanent magnet machine drive applications

open access: yesIET Power Electronics, 2021
Permanent magnet machines have been used in the high‐speed drive applications due to their high‐efficiency, high‐power‐density, and wide‐speed range characteristics.
Xiaoyu Lang   +5 more
doaj   +1 more source

Direct torque control for dual three-phase induction motor drives [PDF]

open access: yes, 2004
A direct torque control (DTC) strategy for dual three-phase induction motor drives is discussed in this paper. The induction machine has two sets of stator three-phase windings spatially shifted by 30 electrical degrees.
Bojoi, R.   +4 more
core   +1 more source

Influence of skew and cross-coupling on flux-weakening performance of permanent-magnet brushless AC machines [PDF]

open access: yes, 2009
A method is proposed for predicting the flux-weakening performance of permanent-magnet (PM) brushless ac machines accounting for skew and d-q axis cross-coupling.
Chen, J.T.   +5 more
core   +1 more source

Integration of FOC With DFVC for Interior Permanent Magnet Synchronous Machine Drives

open access: yesIEEE Access, 2020
In this paper, the drawbacks of the conventional f-t frame based maximum torque per ampere (MTPA) control schemes are analyzed and mathematically proved.
Tianfu Sun   +3 more
doaj   +1 more source

IPMSM torque control strategies based on LUTs and VCT feedback for robust control under machine parameter variations [PDF]

open access: yes, 2016
In recent years, Interior Permanent Magnet Synchronous Machines (IPMSMs) have attracted a considerable attention in the scientific community and industry for Electric and Hybrid Electric Vehicle (HEV) propulsion systems.
Arias Pujol, Antoni   +6 more
core   +1 more source

Research on an Axial Flux PMSM with Radially Sliding Permanent Magnets

open access: yesEnergies, 2015
Axial flux permanent-magnet synchronous machines (PMSMs) are very suitable candidates for the power train of electric vehicles (EVs) due to high power density and high efficiency.
Jing Zhao, Bin Li, Zhongxin Gu
doaj   +1 more source

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