Results 21 to 30 of about 8,930,858 (215)
Parallel Restoration Method for AC-DC Hybrid Power Systems Based on Graph Theory
IEEE Access, 2019 High voltage direct current (HVDC) transmission systems have been used for interconnection among multiple power grids. As a result, the conventional AC power systems are transforming into AC-DC hybrid power systems.
Changcheng Li +4 more
doaj +1 more source
Selective Harmonic Elimination Modulation for HVDC Modular Multilevel Converter
, 2021 This paper proposes the application of a mixed selective harmonic elimination mitigation modulation algorithm to three-phase HVDC modular multilevel converters. Defining 1 the number of levels, two cases have been considered: t=65 and t=257.
Cimoroni M. G. +5 more
core +1 more source
Impact of Primary Frequency Control of Offshore HVDC Grids on Interarea Modes of Power Systems
Energies, 2019 Offshore high-voltage DC (HVDC) grids are developing as a technically reliable and economical solution to transfer more offshore wind power to onshore power systems.
Ali Bidadfar +4 more
doaj +1 more source
The Journal of Engineering, 2019 This paper investigates the integration of large offshore wind farms using parallel HVAC and diode-rectifier based HVDC (DR-HVDC) systems. Three different operation modes, i.e.
Lujie Yu, Rui Li, Rui Li, Lie Xu
doaj +1 more source
Controllable reactor based hybrid HVDC breaker
High Voltage, 2020 Short circuit fault occurrence in high-voltage DC (HVDC) systems causes extremely high currents in a fast raising time that does not experience current zero-crossing.
Amir Heidary +4 more
doaj +1 more source
The NEWGEN European Union Research Project for a New Generation of HVDC Cable Systems
, 2023 This paper illustrates the European Union NEWGEN research project, entitled 'New Generation of HVDC Insulation Materials, Cables and Systems', with 10 partners over 5 EU Countries. The objective of NEWGEN is to develop and proof new insulation materials,
Ciroth A. +10 more
core +1 more source
Applied Sciences, 2021 This paper presents a detailed analysis of commutation failure, AC/DC power flow, and voltage stability of multi-infeed high-voltage direct current (HVDC). The use of HVDC power transmission technology has become common in modern power systems.
Bilawal Rehman +4 more
doaj +1 more source
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
core +1 more source
EnergiesCommutation failures in high-voltage direct current (HVDC) transmission systems often occur within inverter stations, posing challenges to the safe and consistent operation of HVDC transmission projects.
Dandan Zhao +5 more
doaj +1 more source
Review on HVDC cable terminations
High Voltage, 2018 With modern power utilities going green by utilising renewable energy technologies and the development of the smart power grid, high-voltage direct current (HVDC) technologies become more and more important in the energy transmission. In particular, HVDC
Hanyu Ye +9 more
doaj +1 more source