An improved two-vector model predictive torque control based on RMS duty ratio optimization for pmsm [PDF]
, 2019 This paper proposes an improved two-vector model-predictive torque control (MPTC) strategy to reduce the average torque ripple and improve the flux tracking performance.
De Belie, Frederik +3 more
core +1 more source
Distinguishing Parity-Switching Mechanisms in a Superconducting Qubit
PRX Quantum, 2022 Single-charge tunneling is a decoherence mechanism affecting superconducting qubits, yet the origin of excess quasiparticle excitations (QPs) responsible for this tunneling in superconducting devices is not fully understood.
S. Diamond +10 more
doaj +1 more source
Development of a Thermal Analysis Tool for Linear Machines
Applied Sciences, 2021 The thermal design is one of the most important stages in the design process of electrical machines. Thanks to software packages, like Motor-CAD, rotating machine designers can predict the thermal operation of the machines with high precision. However, a
Imanol Eguren +4 more
doaj +1 more source
Noise in (double) relaxation oscillation SQUIDs [PDF]
, 1994 We have modelled the effect of two intrinsic noise sources on the flux noise spectral density of (Double) Relaxation Oscillation SQUIDs ((D)ROSs) based on hysteretic Josephson tunnel junctions.
Adelerhof, Derk Jan +2 more
core +3 more sources
Flux-Density Harmonics Analysis of Switched-Flux Permanent Magnet Machines [PDF]
IEEE Transactions on Magnetics, 2019 By developing a simple permeance-magnetomotive force (MMF) model of switched-flux permanent magnet (SFPM) machines, the air-gap flux density produced by both PMs and armature current can be derived, in which harmonics with the same order and rotational speed are called an effective harmonic pair (EHP).
Zhiqiang Zeng +6 more
openaire +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
Molecular Valves for Controlling Gas Phase Transport Made from Discrete Angstrom-Sized Pores in Graphene [PDF]
, 2014 An ability to precisely regulate the quantity and location of molecular flux is of value in applications such as nanoscale 3D printing, catalysis, and sensor design.
A Cembran +40 more
core +2 more sources
Development of a new flux switching transverse flux machine with the ability of linear motion
CES Transactions on Electrical Machines and Systems, 2018 This paper proposes a new rotary flux switching transverse flux machine with the ability of linear motion (FSTFMaLM), in which both the stator and the rotor cores are made by using soft magnetic composite (SMC) materials. With the special design pattern,
Chengcheng Liu +5 more
doaj +1 more source
Induction Motor Adaptive Backstepping Control and Efficiency Optimization Based on Load Observer
Energies, 2020 In this paper, an adaptive load torque observer based on backstepping control is designed, which achieves accurate load estimation where the load is unknown. Based on this, in order to reduce the loss of the motor at low load, a smooth switching strategy
Chuanguang Chen +3 more
doaj +1 more source
Partitioned Stator Switched Flux Machine: Novel Winding Configurations [PDF]
Entropy, 2020 Torque density is one of the major limiting factors in machine design. In this paper, we propose the hybrid excited partitioned stator switched flux machine3 (HE-PSSFM3). In HE-PSSFM3, armature winding is positioned on the outer stator whereas the permanent magnet (PM) and field winding are placed at the inner stator, while the rotor is free from ...
Muhammad Irfan +5 more
openaire +3 more sources