Multi-terminal HVDC grids facilitate the integration of various renewable resources from
distant locations; in addition, they enhance the reliability and stability of the grid. Protection …

DC short-circuit current calculation is necessary to design and protect modular multilevel
converter-based (MMC-based) multiterminal dc (MTDC) grids. In this article, a general and …

With the increasing penetration level of renewable power, the power systems' inertias are
decreasing. To ensure that the frequency is above the threshold of the under frequency load …

The DC-side fault analysis of Line commutated converter based high voltage direct current
(LCC-HVDC) and Voltage source converter based high voltage direct current (VSC-HVDC) …

The requirement of fast fault isolation poses a great challenge to the safe operation of multi-
terminal direct current (MTDC) systems. In order to make a better tradeoff between the speed …

Accurate fault analysis is essential for protection and control design of hybrid HVDC
transmission system. This paper proposes a dc fault transient analysis method, which …

The hybrid cascaded LCC/MMC high voltage direct current (HC-HVDC) system is a
prospective topology that can avoid the commutation failure problem of LCC-HVDC while …

In the high voltage direct current (HVDC) transmission system composed of modular
multilevel converters (MMC), considering the distribution of transient energy flow (TEF) …

The investigation of the pole-to-pole (p2p) dc short-circuit fault current in modular multilevel
converter (MMC) based high-voltage direct current (HVDC) grid is of vital importance for the …

As a promising solution for connecting remote, asynchronous, and intermittent renewable
energy resources with existing AC grids, high voltage direct current (HVDC) systems are …