Results 101 to 110 of about 4,243 (258)

Analysis of Subsequent Commutation Failures Caused by Valve‐Side Single‐Phase‐to‐Ground Faults in Hybrid Cascaded HVDC Systems and Corresponding Suppression Measures

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
The valve‐side single‐phase‐to‐ground (SPG) fault represents one of the most critical issues affecting the safe operation of hybrid cascade HVDC systems. This paper studies the mechanism of subsequent commutation failure caused by SPG faults on the MMC valve side in hybrid cascade HVDC systems and proposes a suppression measure.
Tao Zheng, Yuting Xue
wiley   +1 more source

Overvoltage and Insulation Coordination of Overhead Lines in Multiple-Terminal MMC-HVDC Link for Wind Power Delivery

open access: yesInternational Journal of Rotating Machinery, 2017
The voltage-sourced converter-based HVDC link, including the modular multilevel converter (MMC) configuration, is suitable for wind power, photovoltaic energy, and other kinds of new energy delivery and grid-connection. Current studies are focused on the
Huiwen He   +3 more
doaj   +1 more source

Interaction analysis in islanded power systems with HVDC interconnections [PDF]

open access: yes, 2018
Postprint (published ...
Cheah Mañé, Marc   +8 more
core  

Comprehensive Study of DC Microgrids Protection: Challenges, Cutting‐Edge Techniques, Machine‐Learning‐Driven Solutions

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
ABSTRACT This paper provides a comprehensive examination of the evolving protection challenges within DC microgrids powered by renewable resources and energy storage systems. It begins by delineating the methodological framework of conventional protection, critically assessing schemes based on current, voltage, and impedance to expose their limitations
Mohamed Elmadawy   +7 more
wiley   +1 more source

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

open access: yes, 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.   +2 more
core   +1 more source

The sub-module voltage-balanced control strategy of mmc-HVDC based on model prediction control

open access: yesThe Journal of Engineering, 2019
The modular multilevel converter (MMC) has the advantages of high efficiency, low harmonic, modular design, and easy cascade, which has been widely used in the field of high voltage and large capacity energy conversion.
Ming-Guang Zhang, Bo Li
doaj   +1 more source

Single-ended differential protection in MTDC networks using optical sensors [PDF]

open access: yes, 2017
This paper presents a method for rapid detection of faults on VSC multi-terminal HVDC transmission networks using multi-point optical current sensing.
Booth, Campbell David   +8 more
core   +1 more source

Impact of converter losses on the optimal power flow solution of hybrid networks based on VSC-MTDC [PDF]

open access: yes, 2017
This paper studies the impact of voltage source converter (VSC) losses on the solution of the optimal power flow (OPF) of hybrid AC/DC systems with a multi-terminal configuration.
Echavarren, F. M.   +4 more
core   +2 more sources

Measurement and Analysis of Radiated Disturbance Characteristics of ±320 kV Modular Multilevel Converter System

open access: yesIEEE Access, 2019
The radiated electromagnetic disturbance was evaluated by measuring the electric field intensity in a bandwidth of 10 kHz-2.75 GHz near the valve hall, direct-current (DC) area, reactor room, and transformers in a ±320-kV modular multilevel ...
Jian Zhang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy