Results 41 to 50 of about 443,204 (308)
Cost-Effective and High-Efficiency Variable-Speed Switched Reluctance Drives With Ring-Connected Winding Configuration [PDF]
, 2019 This paper presents a novel converter topology for six-phase switched reluctance motor (SRM) drives, which reduces the number of switches and diodes by half, compared with the conventional asymmetric half-bridge converter, but needs no additional energy ...
Deng, Xu +4 more
core +2 more sources
The Journal of Engineering, 2019 The use of a winding step of two slots attempts to strike a balance between traditional distributed windings and fractional slot concentrated windings.
Markus Harke
doaj +1 more source
Quasi two-level PWM operation of a nine-arm modular multilevel converter for six-phase medium-voltage motor drives [PDF]
, 2017 This paper proposes a hybrid converter for medium-voltage six-phase machine drive systems that mixes the operation of a traditional two-level voltage-source inverter and the modular multilevel converter (MMC) to enable operation over a wide frequency ...
Adam, Grain P. +4 more
core +1 more source
Minimal sets determining universal and phase-covariant quantum cloning
, 2012 We study the minimal input sets which can determine completely the universal and the phase-covariant quantum cloning machines. We find that the universal quantum cloning machine, which can copy arbitrary input qubit equally well, however can be ...
Fan, Heng +4 more
core +1 more source
Direct torque control for dual three-phase induction motor drives [PDF]
, 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
Implementing SVPWM Technique to an Axial Flux Permanent Magnet Synchronous Motor Drive with Internal Model Current Controller [PDF]
, 2010 This paper presents a study of axial flux permanent magnet synchronous motor (AFPMSM) drive system. An internal model control (IMC) strategy is introduced to control the AFPMSM drive through currents, leading to an extension of PI control with ...
Darba, Araz +2 more
core +2 more sources
HARMONIC ANALYSIS OF MAGNETOMOTIVE FORCE IN THE AIR GAP OF SIX-PHASE ASYNCHRONOUS MACHINES
Journal of Engineering Science (Chişinău)Asynchronous motors with six and more phases (usually n-three-phase) are increasingly accepted in electric drive systems of road transport, marine and even aeronautical transport.
TODOS, Petru +2 more
doaj +1 more source
Energies, 2018 Multiphase machines have some distinct merits, including the high power density, high torque density, high efficiency and low torque ripple, etc. which can be beneficial for many industrial applications.
Yuqing Yao +2 more
doaj +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Energies, 2019 Multiphase machines allow enhancing the performance of wind energy conversion systems from the point of view of reliability and efficiency. The enhanced robustness has been traditionally achieved with a mandatory post-fault control reconfiguration ...
Angel Gonzalez-Prieto +3 more
doaj +1 more source