With rapid increase of distributed solar power generation and direct current (DC) based
loads such as data centers, electric vehicles (EVs), and DC household appliances, the …

To achieve long-distance transmission of onshore wind power, different high-voltage direct-
current (HVDC) technologies have been proposed, including the line-commutated converter …

Blocking all submodules (SMs) of the hybrid modular multilevel converter is a simple way to
clear dc fault currents. However, each arm's reverse-biased voltage (RBV) is uncontrolled in …

This paper introduces a fault locator approach designed for non-homogeneous VSC-HVDC
(Voltage Source Converter-High Voltage Direct Current) transmission circuits. In various …

During the power modulation process of line commutated converter-based high-voltage
direct current (LCC-HVDC), the transient power mismatch between the fast-change …

To enable the integration of large-scale renewable energy, hybrid HVDC technology, which
combines the technical advantages of LCC-HVDC and VSC-HVDC, is being gradually …

A new protection for hybrid cascaded DC transmission line using phase difference of voltage
travelling waves is put forward. According to fault travelling waves propagation process, the …

Distinction of weak and strong AC grids for emerging hierarchical-infeed LCC-UHVDC
systems is important for planning and operation departments. However, accuracy of earlier …

To ensure their sound and continuous operation to the greatest extent, VSC-based DC girds
have extremely stringent requirements for transmission line relay protection. In terms of …

The article deduces analytic expression of voltage travelling wave for hybrid cascaded DC
system, and puts forward a protection based on amplitude coefficients of line-mode fault …