This paper proposes a control method to reduce the capacitance of an inverter driven motor system comprising two inverters and open-end winding machine. In proposed method, connected DC power supply switches based on fundamental electric angular frequency motor. The other is pulse-width modulator controlled generate compensation voltage sinusoidal waveform Therefore, carrier-frequency-order com...

In this paper, we analyze the results of neutral-beam current drive (NBCD) experiments, performed in TJ-II stellarator, with aim validating theoretical predictions. Both parallel and anti-parallel injection respect to magnetic field were explored using co (NBI1) counter (NBI2) beams at different injected beam power plasma densities. The fast-ion driven by both was simulated Monte Carlo code ASC...

this paper develops new results on the use of model predictive control to regulate the attitude of a ground station antenna. two degree of freedom az-el pedestal is considered as ground station antenna. permanent magnet synchronous motors are taken into consideration as the best choice for satisfaction of control objectives as actuators. the design is based on a two cascade controller consist o...

GENRAY and CQL3D were used to estimate the Electron Bernstein Wave (EBW) current drive profiles normalised efficiency ? CD (6) for several STEP reactor concepts with varying temperature, density, geometry magnetic field. > 1.0 was readily found ? = 0.65 ? 0.9 while 0.5 ? 0.5. Okhawa is be most efficient mechanism due high trapped fraction in STEP. Optimal 2 nd harmonic absorption ? 0.8 highe...

MAST-Upgrade (MAST-U) is undergoing several enhancements to deliver increased performance and functionality. One such enhancement the design, development, implementation of an Electron Bernstein Wave (EBW) Heating Current Drive (HCD) System. The MAST-U EBW System aims provide experimental data for model validation, a greater understanding physics its capabilities. provides up 1.8 MW microwave p...