Hiroaki Tsutsui

TL;DR: In this article, the authors introduced the concept of wind farms linked by SMES systems and applied the SMES system to a wind farm that is interconnected with a grid through a back-to-back DC link for the variable speed operation of the wind turbines.

TL;DR: In this article, the authors investigated the compatibility between the plasma and low activation ferritic steel, which is a candidate material for fusion demonstration reactors, and obtained a high normalized beta plasma of βN ~ 3, having both an internal transport barrier and a steady H-mode edge.

TL;DR: In this work, the SMES coils are optimized from the required mass of the structure and the leakage magnetic field to decrease the risk of the superconducting coil constructions by the effect of mass production.

TL;DR: In this paper, the effects of edge-localized mode (ELM) mitigation coils on the loss of NBI-produced fast ions and fusion-produced alpha particles are investigated using an orbit following Monte Carlo code.

TL;DR: The toroidal coil with helical winding as mentioned in this paper is a hybrid coil of a toroidal field (TF) coil and a solenoidal coil helically wound on a torus, which increases the magnetic energy to 4 times the conventional TF coil with the same maximum stress.