Articles with "current profile" as a keyword



An analytical model for mass transport calculations in a viscous muddy layer

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Published in 2021 at "Applied Ocean Research"

DOI: 10.1016/j.apor.2021.102816

Abstract: Abstract This study aims to present analytical solutions to the interactions between waves, currents, and the muddy bed layer and compare the results for different constant, linear, and second-order current profiles. The effects of mean… read more here.

Keywords: current profile; second order; mass transport; mass ... See more keywords

Optimal current profile control for enhanced repeatability of L-mode and H-mode discharges in DIII-D

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Published in 2017 at "Fusion Engineering and Design"

DOI: 10.1016/j.fusengdes.2017.03.022

Abstract: Abstract In this work, model-based control techniques are used to obtain target current profiles in low-confinement-mode (L-mode) as well as high-confinement-mode (H-mode) DIII-D discharges. The control problem is formulated as a trajectory optimization problem to… read more here.

Keywords: current profile; mode; profile control; mode mode ... See more keywords

Development of real-time plasma current profile reconstruction with POINT diagnostic for EAST plasma control

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Published in 2017 at "Fusion Engineering and Design"

DOI: 10.1016/j.fusengdes.2017.05.005

Abstract: Abstract This paper describes the plasma current profile reconstruction algorithms using POlarimeter-INTerferometer(POINT) measurements in GPU parallel equilibrium reconstruction code P-EFIT for EAST plasma control. Real-time POINT diagnostic data acquisition system is designed to satisfy the… read more here.

Keywords: reconstruction; current profile; real time; time ... See more keywords

Modeling of the control of the driven current profile in ICRF MCCD on EAST plasma

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Published in 2018 at "AIP Advances"

DOI: 10.1063/1.5018661

Abstract: Control of the current profile is a crucial issue for improved confinement and the inhibition of instability in advanced tokamak operation. Using typical discharge data for the Experimental Advanced Superconducting Tokamak, numerical simulations of driven-current… read more here.

Keywords: current profile; mode; driven current; control ... See more keywords

Runaway electron plateau current profile reconstruction from synchrotron imaging and Ar-II line polarization angle measurements in DIII-D

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Published in 2024 at "Nuclear Fusion"

DOI: 10.1088/1741-4326/ad4db6

Abstract: Current profile reconstructions are obtained for high current ( Ip≃550 kA) post-disruption runaway electron (RE) plateau plasmas in DIII-D. Two novel methods of measuring the RE current profile in high-current RE plateaus are introduced and… read more here.

Keywords: current profile; profile; polarization angle; electron plateau ... See more keywords

Impact of Nonideal Auxiliary Current Profile on Linearity of Microwave Doherty Amplifiers: Theory and Experiments

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Published in 2022 at "IEEE Transactions on Circuits and Systems I: Regular Papers"

DOI: 10.1109/tcsi.2022.3152589

Abstract: A new nonlinear effect of Doherty power amplifier (DPA) caused by the nonideal auxiliary current is disclosed. In contrary to traditional assumption, the auxiliary current profile is found to be a nonlinear function of input… read more here.

Keywords: auxiliary current; doherty; current profile; linearity ... See more keywords

Fault-Tolerant Control Strategy for Doubly Salient Electromagnetic Machine Based on Current Profile Function Under Loss of Excitation

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Published in 2025 at "IEEE Transactions on Power Electronics"

DOI: 10.1109/tpel.2024.3497303

Abstract: The doubly salient electromagnetic machine (DSEM) has broad application prospects in fields such as electric vehicles and aviation, which puts higher requirements on its reliability. Fault-tolerant control is one of the effective ways to improve… read more here.

Keywords: tolerant control; control; current profile; profile function ... See more keywords