Results 251 to 260 of about 15,894 (296)
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IEEE Transactions on Magnetics, 2015
A kind of arc-linear permanent-magnet synchronous machine (AL-PMSM) used for scanning system, which requires high positioning accuracy, high response performance, and wide scanning range, is proposed and researched. Due to the finite length of stator core and rotor core, the AL-PMSM suffers from stator end effect and rotor end effect.
Jing Zhao +4 more
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A kind of arc-linear permanent-magnet synchronous machine (AL-PMSM) used for scanning system, which requires high positioning accuracy, high response performance, and wide scanning range, is proposed and researched. Due to the finite length of stator core and rotor core, the AL-PMSM suffers from stator end effect and rotor end effect.
Jing Zhao +4 more
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Polar Transformed Subdomain Modeling for Double-Stator Permanent Magnet Linear Synchronous Machine
IEEE Transactions on Magnetics, 2018This paper presents a developed 2-D analytical subdomain model for design and analysis of the double-stator permanent magnet linear synchronous machine (DS-PMLSM) to account for both the primary and secondary end effects. First, considering the time constraint, polar transformed method is adopted to establish the 2-D subdomain analytical model, the DS ...
Rong Guo +5 more
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Flux Distribution in Linear Permanent-Magnet Synchronous Machines Including Longitudinal End Effects
IEEE Transactions on Magnetics, 2007We investigated the longitudinal ends' influence on the flux distribution in a permanent-magnet linear synchronous machine with an analytic model and with numeric finite-element methods. We derived a general analytic expression, on closed form, from a linear reluctance model.
O. Danielsson, M. Leijon
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2017 IEEE International Electric Machines and Drives Conference (IEMDC), 2017
Technology has advanced the reliability of electrical machines; however, machine failures still occur. Undetected stator inter-turn faults in permanent magnet synchronous machines can quickly propagate to catastrophic failure. In this work, unique signatures in the phase voltages of linear permanent magnet synchronous machines with a short secondary ...
Thang Q. Pham +2 more
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Technology has advanced the reliability of electrical machines; however, machine failures still occur. Undetected stator inter-turn faults in permanent magnet synchronous machines can quickly propagate to catastrophic failure. In this work, unique signatures in the phase voltages of linear permanent magnet synchronous machines with a short secondary ...
Thang Q. Pham +2 more
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International Journal of Applied Electromagnetics and Mechanics, 2023
This paper proposes a multi-objective stratified optimization (MOSO) design for a permanent magnet linear synchronous machine (PMLSM) to obtain higher thrust and suppress the thrust ripple. MOSO can combine the advantages of different optimization methods and have fast and efficient optimization characteristics. Based on the parametric analysis of the
Chi, Song +4 more
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This paper proposes a multi-objective stratified optimization (MOSO) design for a permanent magnet linear synchronous machine (PMLSM) to obtain higher thrust and suppress the thrust ripple. MOSO can combine the advantages of different optimization methods and have fast and efficient optimization characteristics. Based on the parametric analysis of the
Chi, Song +4 more
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No-load magnetic field analysis of double-sided linear tubular permanent magnet synchronous machine
2016 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2016This paper presents no load magnetic field analysis of a double-sided linear tubular permanent magnet machine (DSLTPM) with a radially magnetized permanent magnet mover and iron-cored stator winding by using analytical method. Knowledge of magnetic field distribution inside the machine is essential for optimal design of machine.
M.M. Reza +3 more
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Analytical modeling of a new disc permanent magnet linear synchronous machine for electric vehicles
IEEE Transactions on Magnetics, 1999This paper develops an analytical approach based on a qd0 reference frame model to analyze dynamic and steady state characteristics of disc permanent magnet linear synchronous machines (DPMLSMs). The established compact mathematical model can be more easily employed to analyze the system behavior and to design the controller. Superiority in operational
null Cheng-Tsung Liu +2 more
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Design of a disc permanent magnet linear synchronous machine for electric vehicle application
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002This paper presents a new disc permanent magnet linear synchronous machine (DPMLSM) for application to electric vehicles. The windings and permanent magnets of the proposed machine are well-arranged to fulfil requirements of large torque density and high efficiency for electric vehicle application.
null Cheng-Tsung Liu, null Jyh-Wei Chen
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2008 IEEE Power Electronics Specialists Conference, 2008
In this paper, the concept of efficiency evaluation of linear permanent magnet synchronous motors using the synthetic loading method is described and evaluated. Synthetic loading is a method of efficiency evaluation that eliminates the need for a mechanical load to absorb generated shaft power.
Abdelaziz Y. M. Abbas, John E. Fletcher
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In this paper, the concept of efficiency evaluation of linear permanent magnet synchronous motors using the synthetic loading method is described and evaluated. Synthetic loading is a method of efficiency evaluation that eliminates the need for a mechanical load to absorb generated shaft power.
Abdelaziz Y. M. Abbas, John E. Fletcher
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IEEE Transactions on Energy Conversion, 2020
An effective analytical model of permanent magnet linear synchronous machine (PMLSM) is proposed in this paper, which considers the end effect by adding virtual slots and the slotting effect by adopting relative air-gap permeance. To employ this model, the open-circuit air-gap flux density of a slotless PMLSM with virtual slots is firstly predicted by ...
Qinfen Lu +4 more
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An effective analytical model of permanent magnet linear synchronous machine (PMLSM) is proposed in this paper, which considers the end effect by adding virtual slots and the slotting effect by adopting relative air-gap permeance. To employ this model, the open-circuit air-gap flux density of a slotless PMLSM with virtual slots is firstly predicted by ...
Qinfen Lu +4 more
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