Results 51 to 60 of about 65,219 (255)
Minimization of Transmission Loss in Application of HVDC Networks under Load Increase Scenario
International Journal of Electrical and Electronic Engineering & Telecommunications, 2021 This study aims to analyze the effect of embedding HVDC (High Voltage Direct Current) on the voltage stability and power losses of the system. Sequential power flow is used to execute the combined AC-DC power flow by adjusting the estimation of DC slack ...
Z. S. Majid, A. Arief, Y. Akil
semanticscholar +1 more source
Power balancing and dc fault ride through in DC grids with dc hubs and wind farms [PDF]
, 2015 Acknowledgment This project was funded by European Research Council under the Ideas program in FP7; grant no 259328, 2010.Peer ...
Jovcic, Dragan, Lin, Weixing
core +1 more source
HVDC Transmission: Technology Review, Market Trends and Future Outlook
Renewable & Sustainable Energy Reviews, 2019 HVDC systems are playing an increasingly significant role in energy transmission due to their technical and economic superiority over HVAC systems for long distance transmission.
Abdulrahman Alassi +4 more
semanticscholar +1 more source
Control of Offshore Wind Turbines Connected to Diode-Rectifier-Based HVdc Systems
IEEE Transactions on Sustainable Energy, 2021 Diode-rectifier-based high voltage dc (DR-HVdc) systems can be a promising low-cost solution for exporting wind power from remote offshore wind farms to onshore power systems. Industrializing the offshore DR-HVdc requires technical maturation, achievable
A. Bidadfar +3 more
semanticscholar +1 more source
IEEE Transactions on Power Systems, 2021 Multi-terminal high voltage direct current (HVDC) systems, together with AC transmission systems and voltage source converters (VSCs), form hybrid AC/DC grids with complex dynamic and transient interactions.
J. Pedra, L. Sainz, L. Monjo
semanticscholar +1 more source
Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]
, 2016 This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano +3 more
core +1 more source
南方能源建设, 2023 [Introduction] Under the existing converter station reactive power compensation scheme, the synchronous condenser only provides transient reactive power support, and the AC (Alternating Current) filter undertakes steady-state reactive power compensation ...
Dongqing ZHANG +3 more
doaj +1 more source
Distributed Secondary Frequency Control through MTDC Transmission Systems
, 2015 In this paper, we present distributed controllers for sharing primary and secondary frequency control reserves for asynchronous AC transmission systems, which are connected through a multi-terminal HVDC grid.
Andersson, Göran +4 more
core +2 more sources
Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]
, 2015 Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P. +4 more
core +2 more sources
Modelling of HVDC breakers for HVDC grid simulations
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 +3 more sources