Results 11 to 20 of about 4,868 (226)
Optimal dc reference voltage in HVDC grids [PDF]
11th IET International Conference on AC and DC Power Transmission, 2015 In a HVDC grid, power energy equilibrium must be guaranteed at every moment to prevent DC voltage to increase or decrease to unacceptable values. Contrary to the frequency in an AC power system, the DC voltage cannot be assumed to be the same throughout the system, since a DC voltage difference is necessary to have a current flow. To operate HVDC grids
Renner, R.H. +2 more
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Modelling of HVDC breakers for HVDC grid simulations [PDF]
13th IET International Conference on AC and DC Power Transmission (ACDC 2017), 2017 This paper deals with the modelling of high-voltage direct current (HVDC) breakers in PSCAD. The models are aimed at HVDC grid simulation and are kept as simple as possible.
Augustin, Tim +2 more
openaire +4 more sources
Review of HVDC technologies for weak grid interconnectors [PDF]
Electrical EngineeringHVDC has experienced substantial growth in utilization globally, attributable to its superior capacity for transmitting large amounts of power relative to its HVAC counterpart and its increasingly competitive pricing. Voltage source converter technology, a variant of HVDC, is particularly well suited for transferring bulk offshore power, whether in ...
Roni Irnawan +6 more
openaire +3 more sources
Grid Forming
CSEE Journal of Power and Energy Systems, 2023 Grid forming controllers need to operate with a large variation of grid parameters and grid structures, for instance, during black-start operation, connection to HVDC diode rectifiers, etc.
Jaime Martinez-Turegano +2 more
doaj +3 more sources
Grid-Forming Operation of the HVDC Tyrrhenian Link-East for Improved Frequency Transients [PDF]
, 2023 The paper examines the possibility of operating the VSC (Voltage Source Converter)-based HVDC (High Voltage Direct Current) Tyrrhenian Link-East with grid-forming capabil-ities.
Angelo L'Abbate +6 more
core +1 more source
Impact of Grid Forming Power Converters on the Provision of Grid Services through VSC-HVdc Systems [PDF]
, 2021 High Voltage dc (HVdc) transmission systems have gained increased popularity as a flexible and efficient power transmission option with higher grid controllability.
Marco Liserre +5 more
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Simulation of Sapei HVDC using Modelica language [PDF]
, 2023 This paper attempts to implement Sardinia-Italian-peninsula (SAPEI) high voltage direct current (HVDC) system in Modelica language. SAPEI was commissioned in 2011 to contribute to the stability of Italian grid and facilitate the export of power from ...
Mohammad Babaeifar +2 more
core +1 more source
The NEWGEN European Union Research Project for a New Generation of HVDC Cable Systems [PDF]
, 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
The Journal of Engineering, 2019 Here, the uncontrolled rectification pre-charging characteristics of the VSC-HVDC system with different modular multilevel converter (MMC) topologies such as full-bridge, half-bridge, and hybrid topologies are proposed based on theoretical analysis and ...
Yuxin Lu +5 more
doaj +1 more source
Inertia emulation control of VSC-HVDC transmission system [PDF]
, 2011 The increasing penetration of power electronics interfaced renewable generation (e.g. offshore wind) has been leading to a reduction in conventional synchronous-machine based generation.
Roscoe, Andrew +7 more
core +1 more source