Results 111 to 120 of about 4,243 (258)

A Control Strategy for Ground Fault on the AC Side of MMC-HVDC System. [PDF]

Comput Intell Neurosci, 2022
Li H, Guo L.
europepmc   +1 more source

Hybrid cascaded modular multilevel converter with DC fault ride-through capability for HVDC transmission system [PDF]

, 2015
A new hybrid cascaded modular multilevel converter for high-voltage dc (HVDC) transmission system is presented. The half-bridge (HB) cells are used on the main power stage and the cascade full-bridge (FB) cells are connected to its ac terminals. The main
Adam, Grain Philip, Fletcher, John E., Holliday, Derrick, Li, Rui, Williams, Barry W.   +4 more
core   +1 more source

Multi-Degree-of-Freedom Control Framework for HVDC Transmission Converters

CSEE Journal of Power and Energy Systems
This paper systematically investigates the multi-degree-of-freedom (multi-DoF) control framework of high voltage direct current (HVDC) converters based on their topological characteristics and control requirements.
Haobo Zhang, Jinyu Wen, Wang Xiang, Weixing Lin, Meng Zhou, Wenping Zuo, Shijie Cheng   +6 more
doaj   +1 more source

Coordinated Start-Up Control and Inter-Converter Oscillations Damping for MMC-HVDC Grid

IEEE Access, 2019
Modular multilevel converter (MMC)-based high-voltage direct current (HVDC) grid is a promising technology for multiple offshore wind farms (OWFs) to form interconnected offshore grids.
Fayou Yan, Puyu Wang, Xiao-Ping Zhang, Jufang Xie, Xiaodong Li, Chao Tang, Zhongyong Zhao   +6 more
doaj   +1 more source

A hybrid modular multilevel converter with novel three-level cells for DC fault blocking capability [PDF]

, 2015
A novel hybrid, modular multilevel converter is presented that utilizes a combination of half-bridge and novel three-level cells where the three-level cells utilize a clamp circuit which, under dc side faults, is capable of blocking fault current thereby
Fletcher, John E., Holliday, Derrick, Li, Rui, Williams, Barry W., Xu, Lie   +4 more
core   +1 more source

Open-Circuit Fault Detection and Classification of Modular Multilevel Converters in High Voltage Direct Current Systems (MMC-HVDC) with Long Short-Term Memory (LSTM) Method. [PDF]

Sensors (Basel), 2021
Wang Q, Yu Y, Ahmed HOA, Darwish M, Nandi AK.   +4 more
europepmc   +1 more source

Detailed quantitative comparison of half-bridge modular multilevel converter modelling methods [PDF]

, 2018
This paper presents a detailed comparison of different modelling methods of the half-bridge modular multilevel converter (HB-MMC), namely, switching function, Thevenin equivalent and averaged, considering both MMC implementations (large and reduced ...
Adam, G.P., Audichya, Yash, Burt, Graeme, Emhemed, Abdullah, Guo, Deyang, Rahman, M.H., Xu, Lie   +6 more
core  

Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system [PDF]

, 2018
Integration of renewable energy generations requires the transmission of bulky power over long distance and HVDC transmission systems become a more preferable choice compared to conventional HVAC systems.
Rahman, M. H., Wang, Y., Xu, L., Zhou, D.   +3 more
core  

Small-Signal Dynamic DQ Model of Modular Multilevel Converter for System Studies [PDF]

, 2015
This work was funded by the European Research Council under the Ideas program in FP7 under Grant 259328, 2010. Paper no.
Jamshidifar, Aliakbar, Jovcic, Dragan
core   +1 more source

Nonlinear Controller for MMC-HVdc Operating in Grid-Forming Mode

IEEE Transactions on Control Systems Technology
The development of the modular multilevel converter (MMC) enabled the efficient creation of high-power high-voltage direct current (HVdc) transmission systems. As a result, MMC-HVdc transmission systems became the main alternative to integrate remote renewable energy sources being deployed in accelerating rates to fight climate change. As the number of
Luis F. Normandia Lourenço, Alessio Iovine, Gilney Damm, Alfeu J. Sguarezi Filho   +3 more
openaire   +2 more sources