Results 41 to 50 of about 65,219 (255)

Modeling and enhanced control of hybrid full bridge–half bridge MMCs for HVDC grid studies [PDF]

open access: yes, 2020
Modular multilevel converters (MMCs) are expected to play an important role in future high voltage direct current (HVDC) grids. Moreover, advanced MMC topologies may include various submodule (SM) types. In this sense, the modeling of MMCs is paramount
Forner, Jaume, Vidal-Albalate, Ricardo
core   +1 more source

A Novel Approach to Control Multi Terminal Direct Current Grids under Different Operation Conditions [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2023
Frequency control plays a crucial role in maintaining stability and power equilibrium in Alternative Current (AC) systems, ensuring a balanced distribution between generation and demand.
SEDAGHATI Reza
doaj  

Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]

open access: yes, 2018
Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A.   +3 more
core   +2 more sources

Offshore Wind Power Integration into Future Power Systems: Overview and Trends

open access: yesJournal of Marine Science and Engineering, 2019
Nowadays, wind is considered as a remarkable renewable energy source to be implemented in power systems. Most wind power plant experiences have been based on onshore installations, as they are considered as a mature technological solution by the ...
Ana Fernández-Guillamón   +3 more
doaj   +1 more source

Study on Burnout Mechanism of TE Board for HVDC Transmission Project Electric Triggered Converter Valve

open access: yesZhongguo dianli, 2020
Thyristor electronic board (TE board) of HVDC converter valve is an important equipment of HVDC converter valve. In the process of operation and maintenance, TE board burned out many times, resulting in the shutdown of the converter valve pole, which ...
Zhen WANG, Kun LIU, Wei JU
doaj   +1 more source

IoT Supervised PV-HVDC Combined Wide Area Power Network Security Scheme Using Wavelet-Neuro Analysis

open access: yesAdvances in Electrical and Electronic Engineering, 2022
Power system networks are one of the most widely used methods in the real world for transferring large amounts of electrical energy from one location to another.
Gantaiah Swamy Garika, Padma Kottala
doaj   +1 more source

Modular multilevel converter losses model for HVdc applications [PDF]

open access: yes, 2017
Multi-terminal high voltage dc (HVdc) grids can eventually became a feasible solution to transport energy to remote and/ or distant areas and its exploitation depend, among other things, on the performance of the converter terminals.
Antonio Ferreira, Abel   +1 more
core   +2 more sources

Protection of Multi-Terminal HVDC Grids: A Comprehensive Review

open access: yesEnergies, 2022
Multi-terminal HVDC grids facilitate the integration of various renewable resources from distant locations; in addition, they enhance the reliability and stability of the grid.
M. Radwan, S. Azad
semanticscholar   +1 more source

Multi-terminal HVDC grids with inertia mimicry capability [PDF]

open access: yes, 2016
The high-voltage multi-terminal dc (MTDC) systems are foreseen to experience an important development in the next years. Currently, they have appeared to be a prevailing technical and economical solution for harvesting offshore wind energy. In this study,
Gharehpetian, Gevorg B.   +4 more
core   +2 more sources

Capacitor Energy Variations in MMC Using Harmonics Injection

open access: yesPower Electronics and Drives, 2020
Modular multilevel converter (MMC) is considered as a good technology for high-voltage direct current (HVDC) transmission systems. It can generate a good quality staircase output voltage waveform due to the cascaded connection of large number of ...
Hafeez Kamran   +3 more
doaj   +1 more source

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