Results 51 to 60 of about 652 (179)
IET Power ElectronicsTo solve the commutation failure (CF) issues in high voltage direct current (HVDC) transmission systems based on line commutated converter (LCC), this paper proposes a hybrid solution combining the LCC inverter with the continuously controlled IGCT‐based
Yindi Liu +3 more
doaj +1 more source
Advanced Science, EarlyView.Using machine‐learning analyses in two independent multiple sclerosis cohorts, spinal cord atrophy and cortical degeneration emerged as key predictors of disability and progression independent of relapses. Deep gray matter damage further improved prediction, while serum biomarkers of brain damage provided complementary information, highlighting the ...
Alessandro Cagol +17 more
wiley +1 more source
Development of Medium Power High Efficiency Multi-Level Buck-Boost DC-DC Converter [PDF]
, 2022 Power DC/DC converters or regulators form the backbone of different portable electronic devices like cellular phones, laptops, portable electronic devices which are using batteries as their power supply.
sharma, Sunny Kumar +2 more
core +4 more sources
Impact of Parasitics on the Dynamic Performance of Capacitor Clamped Bidirectional DC–DC Converter
IET Power ElectronicsThis study investigates the impact of parasitic elements on the dynamic performance of a capacitor clamped bidirectional DC–DC converter (CC‐BDC) to emulate real‐world conditions. Non‐ideal factors, including component imperfections and parasitic losses,
Dogga Raveendhra +5 more
doaj +1 more source
Space vector PWM technique for a two-level asymmetrical six-phase drive
The Journal of Engineering, 2019 A space vector pulse-width modulation (PWM) technique for a two-level asymmetrical six-phase drive is proposed for the first time in this study. The PWM technique is developed based on the modified vector space decomposition approach.
Engku Ahmad Rafiqi Bin Engku Ariff +1 more
doaj +1 more source
Progress in High Power Free-Piston Stirling Convertor Development [PDF]
, 2008 The U.S. Space Exploration Policy has established a vision for human exploration of the moon and Mars. One option for power for future outposts on the lunar and Martian surfaces is a nuclear reactor coupled with a free-piston Stirling convertor at a ...
Brandhorst, Henry W., Jr. +3 more
core +1 more source
Advanced Science, EarlyView.This work provides a multifunctional programmable transmissive metasurface with phase and amplitude manipulation capability in the sub‐6G band. By applying different coding strategies, the proposed metasurface can realize vortex beam generation, holographic imaging under phase coding mode, and multi‐beam forming in phase‐amplitude joint coding mode ...
Hao Tian Shi +8 more
wiley +1 more source
IET Electric Power ApplicationsA novel programmed hybrid spreading spectrum modulation method to mitigate electromagnetic interference (EMI) emission and bearing current in the context of miniaturised and lightweight synchronous machine drives is proposed.
Hongtai Ma +5 more
doaj +1 more source
Method to improve charging power quality of electric vehicles
The Journal of Engineering, 2019 With the increasing number of electric vehicles, the vehicle-to-grid (V2G) technology has become a hotspot for the present research because it can cause peak-load shifting; it is also a practical technical means to improve the power grid capacity of new ...
Fucun Li +4 more
doaj +1 more source
The Development of a Control System for a 5 Kilowatt Free Piston Stirling Engine Convertor [PDF]
, 2008 The new NASA Vision for Exploration, announced by President Bush in January 2004, proposes an ambitious program that plans to return astronauts to the moon by the 2018 time frame.
Kirby, Raymond L., Vitale, Nick
core +1 more source