Results 31 to 40 of about 9,074 (311)
Performance of halbach magnetized brushless ac motors [PDF]
IEEE Transactions on Magnetics, 2003 In this paper, an anisotropic bonded NdFeB Halbach magnetised ring magnet, which is oriented in powder alignment system during injection moulding and subsequently impulse magnetised, is employed. The features of such a Halbach magnetised machine, in terms of the airgap field distribution, and the back-emf and cogging torque waveforms, etc.
Zhu, Z.Q. +5 more
openaire +2 more sources
Embedded finite-element solver for computation of brushless permanent-magnet motors [PDF]
, 2008 This paper describes the theory underlying the formulation of a “minimum set” of finite-element solutions to be used in the design and analysis of saturated brushless permanent-magnet motors.
McGilp, M.I. +7 more
core +1 more source
Energies, 2023 In some power systems, the voltage waveform contains frequency components less than fundamental, called subharmonics or subsynchronous interharmonics. Voltage subharmonics can be both positive- and negative-sequence, independent of their frequency (order)
Piotr Gnaciński +3 more
doaj +1 more source
Torque behavior of one-phase permanent magnet AC motor [PDF]
, 2006 This paper presents a detailed comparative study of two starting and running methods for a single-phase permanent magnet synchronous motor, equipped with a squirrel-cage rotor. The analysis of the motor performance is realized for a pulse width modulated
McGilp, M.I. +5 more
core +1 more source
Design issues of an IPM motor for EPS [PDF]
, 2011 In electric power steering (EPS), permanent magnet (PM) brushless ac (BLAC) motors offer distinct advantages over other electric motor types in terms torque smoothness, reliability and efficiency.
Shen, Jian-Xin +4 more
core +1 more source
New trends in electric motors and selection for electric vehicle propulsion systems
IET Electrical Systems in Transportation, 2021 The increase in the numbers of electric vehicles (EVs) is seen as an upgrading of the existing vehicles for various reasons. This calls for an in‐depth analysis of the heart of these vehicles—the motor. A motor in an electric vehicle propulsion system is
Sreedhar Madichetty +2 more
doaj +1 more source
Energies, 2023 In modern power systems, interharmonics have emerged as noninteger frequency components that appear in current or voltage signals. Double-stage AC-DC-AC converters have been identified as a primary source of interharmonics.
Alberto Gudiño-Ochoa +3 more
doaj +1 more source
Self-Commissioning of Inverter Nonlinear Effects in AC Drives [PDF]
, 2012 The paper presents a novel technique for an accurate identification of the inverter nonlinear effects, such as the dead-time and on-state voltage drops. The proposed technique is very simple and it is based only on a current control scheme.
Rosu, S.G. +10 more
core +1 more source
End effects in linear tubular motors and compensated position sensorless control based on pulsating voltage injection [PDF]
, 2011 The sensorless position control of permanent-magnet (PM) synchronous motors can be successfully implemented by superimposing a high-frequency voltage signal on the control voltage.
CUPERTINO, Francesco +9 more
core +1 more source
High temperature machine: Characterization of materials for the electrical insulation
Open Physics, 2020 This paper aims to present and analyze the materials adapted to design a machine that can work with a high current density without any specific cooling system. In other words, the machine is equipped with material that supports high internal temperature,
Lecointe Jean-Philippe +4 more
doaj +1 more source