Sawtooth pacing by real-time auxiliary power control in a tokamak

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Thermodynamic analysis of a tri-generation system using SOFC and HDH desalination unit

The lack of freshwater in many countries pushes authorities to utilize desalination units. Solid Oxide Fuel Cells (SOFC) have shown promising results to provide the power to establish a multi-generation system using hydrogen as a renewable source. In this ...

2021

Isotope dependence of the type I ELMy H-mode pedestal in JET-ILW hydrogen and deuterium plasmas

Henri Weisen, Mikhail Maslov

The pedestal structure, edge transport and linear MHD stability have been analyzed in a series of JET with the ITER-like wall hydrogen (H) and deuterium (D) type I ELMy H-mode plasmas. The pedestal pressure is typically higher in D than in H at the same in ...

IOP Publishing Ltd2021

Power exhaust by core radiation at COMPASS tokamak

Olivier Claude Martin Février, Davide Mancini

Substantial power dissipation in the edge plasma is required for the safe operation of ITER and next-step fusion reactors, otherwise unmitigated heat fluxes at the divertor plasma-facing components (PFCs) would easily exceed their material limits. Traditio ...

IOP Publishing Ltd2021

Integrated Real-Time Supervisory Management for Off-Normal-Event Handling and Feedback Control of Tokamak Plasmas

Olivier Sauter, Federico Alberto Alfredo Felici, Cristian Galperti, Anna Ngoc Minh Trang Vu, Alessandro Pau, Bernhard Sieglin

For long-pulse tokamaks, one of the main challenges in the control strategy is to simultaneously reach multiple control objectives and to robustly handle in real-time (RT) unexpected events [off-normal-events (ONEs)] with a limited set of actuators. We hav ...

2021

Adaptive Body Biasing in Strong Body Factor Technologies

Thomas Christoph Müller

With the advent of intelligent sensor nodes in everyday life, low power aspects of system design become more and more important. Adaptive body biasing is a promising methodology to achieve dynamic adaptation of the tradeoff between performance and energy b ...

EPFL2021

Pushing the Limits of Efficiency and Power Density in High-Frequency Power Conversion Based on Wide-Band-Gap Technologies

Armin Jafari

The emergence of wide-band-gap (WBG) power transistors with low conduction losses and high-speed switching speeds has paved the way for more-than-ever efficient power electronics systems and huge energy saving potentials. Likewise, power density- the ratio ...

EPFL2021

Experimental Validation of the Real-Time Control of an Electric-Vehicle Charging Station

Jean-Yves Le Boudec, Mario Paolone, Sherif Alaa Salaheldin Fahmy, Roman Rudnik

The high penetration of electric vehicles (EVs) charging stations (CSs), together with the progressive availability of distributed energy resources, increases the risk of grid overloading and power-quality degradation. Real-time control has been advocated ...

IEEE2021

Wearable and Battery-Free Health-Monitoring Devices With Optical Power Transfer

Sandro Carrara, Nattakarn Wuthibenjaphonchai

Wireless epidermal wearable devices attract interests and expectations as a tool for personalized, low-cost health monitoring technology. The concept of the wireless attachable personal health monitoring devices has been more widely considered by combining ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021

The operational space for divertor power exhaust in DEMO with a super-X divertor

Holger Reimerdes, Marco Wischmeier, Mirko Wensing

SOLPS-ITER simulations of the European DEMO reactor with a Super-X divertor, which has larger major radius at the outer target and increased connection length, show an increased operational space for divertor power exhaust compared to the conventional sing ...

IOP Publishing Ltd2021

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