To protect the converters and minimize the power transmission interruption during dc line
faults, it is necessary to detect the faults at ultra high speed for the modular multilevel …

High voltage direct current (HVDC) transmission is an economical option for transmitting a
large amount of power over long distances. Initially, HVDC was developed using thyristor …

The change rate of the dc reactor voltage with predefined protection voltage thresholds is
proposed to provide fast and accurate dc fault detection in a meshed multiterminal HVDC …

Fault-current handling capability of the modular multilevel converters (MMCs) under dc-
cable short-circuit conditions is a major concern for the MMC applications on the high …

In this paper, a novel three-phase parallel grid-connected multilevel inverter topology with a
novel switching strategy is proposed. This inverter is intended to feed a microgrid from …

For a large multiterminal HVDC system, it is important for a dc fault on a single branch to not
cause significant disturbance to the operation of the healthy parts of the dc network. Some …

The alternate arm converter (AAC) was one of the first modular converter topologies to
feature dc-side fault ride-through capability with only a small penalty in power efficiency …

The multi-terminal VSC-HVDC grid is believed to be widely applied in the future power
system. The dc line protection is the key technique for operation security and power supply …

Modular multilevel converter (MMC) is a promising topology for medium-and high-power
conversion systems. In recent years, it has been prominent over other power converters …

This paper introduces a new multilevel converter topology for a hybrid HVDC system
comprising line-commutated converter (LCC) and voltage source converter (VSC). Among …