Results 11 to 20 of about 23,986,676 (291)
The Journal of Engineering, 2019 Underwater long-distance high-voltage direct current transmission system can provide long-term, reliable, and sustainable energy for ocean observatories system which has higher reliability requirement than onshore or conventional underwater equipment. As
Siyuan Ma +10 more
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HVDC (High Voltage Direct Current) Transmission System: A Review Paper [PDF]
Gyancity Journal of Engineering and Technology, 2018 Back in the early days of electricity supply, AC (alternating current) was adopted for power transmission because it could be stepped up or down as needed by transformers and because it could be interrupted more easily than DC (direct current). High-voltage AC grids evolved as an efficient way to connect existing islands of distribution grids and large
Kumar, Abhishek +1 more
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An Overview of HVDC Technology
Energies, 2020 There is a growing use of High Voltage Direct Current (HVDC) globally due to the many advantages of Direct Current (DC) transmission systems over Alternating Current (AC) transmission, including enabling transmission over long distances, higher ...
Neville R. Watson, Jeremy D. Watson
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Energies, 2020 Although loads are increasingly becoming concentrated in metropolitan areas, power generation has decreased in metropolitan areas and increased in nonmetropolitan areas; hence, power transmission must occur through interface lines.
Sangwook Han
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Recent advances in High-Voltage direct-current power transmission systems [PDF]
, 2006 The ever increasing progress of high-voltage high-power fully-controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimised operations and efficient ...
Nikolas Flourentzou +5 more
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Novel Enhanced Modular Multilevel Converter for High-Voltage Direct Current Transmission Systems
Energies, 2020 This paper proposes an enhanced modular multilevel converter as an alternative to the conventional half-bridge modular multilevel converter that employs a reduced number of medium-voltage cells, with the aim of improving waveforms quality in its AC and ...
Dimitrios Vozikis +3 more
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IET Generation, Transmission & Distribution, 2021 Transient behaviour of high‐voltage direct current transmission lines under direct current faults can be easily affected by many factors, namely, fault location, fault resistance and transmission line length.
Farzad Dehghan Marvasti +2 more
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Computation of transient electromagnetic fields due to switching in high voltage substations [PDF]
, 2010 Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Siew, W.H., Musa, B.U., Judd, M.D.
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Hybrid Models of Alternative Current Filter for Hvdc
MATEC Web of Conferences, 2017 Based on a hybrid simulation concept of HVDC, the developed hybrid AC filter models, providing the sufficiently full and adequate modeling of all single continuous spectrum of quasi-steady-state and transient processes in the filter, are presented.
Ufa Ruslan A. +3 more
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International Journal of Electrochemical Science, 2022 The concentration, temperature effect and thermodynamic activation energy of aluminum corrosion in dilute acetic acid solution were explored by the polarization curve and the electrochemical impedance spectroscopy.
Peng Zhang +6 more
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