Results 101 to 110 of about 4,243 (258)
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
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]
Postprint (published ...
Cheah Mañé, Marc +8 more
core
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]
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
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]
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
Small-Signal Stability Analysis and MOSMA-Based Optimization Control Strategy of OWF with MMC-HVDC Grid Connection. [PDF]
Zheng J, Li H, Zhang B, Li Q.
europepmc +1 more source
Impact of converter losses on the optimal power flow solution of hybrid networks based on VSC-MTDC [PDF]
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
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

