Results 81 to 90 of about 2,361 (200)

Control predictivo sobre un terminal MMC utilizado en la integración de granjas eólicas a un sistema HVDC [PDF]

, 2018
Tradicionalmente se utilizan enlaces tipo ac para el transporte de la energía eléctrica y debido a el avance de la electrónica de potencia y la mejora en los procesos de manufactura de dispositivos semiconductores, se ha venido explorando la ...
Muñoz Gómez, Johannes, Suarez Reyes, Sebastián   +1 more
core  

A Fault Detection Method for Multiterminal Flexible DC Grids Based on Current Transient Energy Rate Ratio

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
To address the challenge of weak fault transient characteristics in multiterminal flexible DC grids caused by transition resistance, DC reactors, and noise interference, which render traditional single‐electrical‐quantity detection methods ineffective, this paper proposes a fault identification scheme for flexible DC transmission systems based on the ...
Renwu Yan, Zhonghong Liu, Luebin Fang, Ning Yu, Zibin Su, Huamin Jie   +5 more
wiley   +1 more source

DC protection coordination for multi‐terminal HB‐MMC‐based HVDC grids

IET Renewable Power Generation
Fast progress of High Voltage Direct Current (HVDC) technology has been considerable over the past decades. Emerging Modular Multilevel Converter (MMC) provides power systems with promising solutions to integrate large‐scale renewable energy sources, as ...
Seyed Hassan Ashrafi Niaki, Zhe Chen, Birgitte Bak‐Jensen, Kamran Sharifabadi, Zhou Liu, Shuju Hu   +5 more
doaj   +1 more source

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., Ahmed, Shehab, Gowaid, I. A., Holliday, Derrick, Williams, Barry W.   +4 more
core   +2 more sources

HVDC Cable System Testing

High Voltage, Volume 10, Issue 6, Page 1349-1370, December 2025.
ABSTRACT This paper reviews the existing testing techniques for high voltage direct current (HVDC) cable systems, following as a backbone the structure of CIGRE Technical Brochure (TB) 852:2021 ‘Recommendations for testing DC extruded cable systems for power transmission at a rated voltage up to 800 kV’ because it has a fairly similar structure to ...
Giovanni Mazzanti
wiley   +1 more source

Enhanced control strategy of full-bridge modular multilevel converter [PDF]

, 2015
This paper describes a control approach that allows the cell capacitor voltages of the full-bridge modular multilevel converter (FB-MMC) to be controlled independent of the input dc link voltage.
Adam, G. P., Finney, S. J., Williams, B. W.   +2 more
core   +1 more source

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

, 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

Harmonic Analysis of Transmission Scheme for Offshore Wind Farms Based on Diode Rectifier Unit

Engineering Reports, Volume 7, Issue 10, October 2025.
This paper builds a general mathematical for the multiple rectifier circuit used in DRU, which is based on the 12‐pulse and 24‐pulse rectifier circuits, and analyzes the harmonics of DRU using different rectifier circuits before and after the installation of AC filters by an offshore wind farm integration project. ABSTRACT The diode rectifier unit (DRU)
Qing Chen, Bin Lin, Xiaohe Wang, Peng Liang, Zheren Zhang   +4 more
wiley   +1 more source

Comparison of bipolar sub-modules for the alternate arm converter [PDF]

, 2016
© 2016 IEEE.Research on dc-fault tolerant multilevel converters has gained noticeable attention over recent years. The alternate arm converter (AAC) is one of such emerging multilevel converter topologies, and a hybrid topology of the two-level converter
Agelidis, Vassilios, Ceballos, Salvador, Konstantinou, Georgios, Picas, Ricard, Pou, Josep, Wickramasinghe, Harith R.   +5 more
core   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

High Voltage, Volume 10, Issue 3, Page 546-554, June 2025.
Abstract Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on reverse blocking integrated gate commutated thyristor, which can utilise two methods for ...
Zongze Wang, Zhanqing Yu, Lu Qu, Zhichang Yuan, Kangsheng Cui, Jian Shi, Biao Zhao, Rong Zeng   +7 more
wiley   +1 more source