DC fault protection algorithms of MMC-HVDC grids: Fault analysis, methodologies, experimental validations, and future trends
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 …
faults, it is necessary to detect the faults at ultra high speed for the modular multilevel …
A comprehensive review of multiport DC circuit breakers for MTdc grid protection
Voltage source converter–based multiterminal dc (MTdc) grids, including high-and medium-
voltage levels, have attracted attention in recent years and developed fast. To protect the …
voltage levels, have attracted attention in recent years and developed fast. To protect the …
A hybrid modular multilevel converter family with higher power density and efficiency
Modular multilevel converter (MMC) has many advantages of scalability, reliability and easy
implementation, but suffers from large number of switching devices and capacitors. To …
implementation, but suffers from large number of switching devices and capacitors. To …
Fault current estimation in multi-terminal HVDC grids considering MMC control
DC faults are critical events for the multi-terminal HVdc protection systems, where knowing
the critical fault time is fundamental in the protections design. Existing literature analyzes the …
the critical fault time is fundamental in the protections design. Existing literature analyzes the …
Fault diagnosis and monitoring of modular multilevel converter with fast response of voltage sensors
J Zhang, X Hu, S Xu, Y Zhang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Modular multilevel converter (MMC) has been one of the most popular candidates in high-
voltage applications. However, reliability is a critical issue due to a large number of power …
voltage applications. However, reliability is a critical issue due to a large number of power …
Control of a hybrid modular solid-state transformer for uninterrupted power supply under MVdc short-circuit fault
J Zhang, Y Zhang, J Zhou, J Wang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Modular multilevel converter (MMC)-based solid-state transformers (M-SSTs) show promise
in hybrid ac/dc distribution grids where there is need for a medium-voltage dc (MVdc) …
in hybrid ac/dc distribution grids where there is need for a medium-voltage dc (MVdc) …
A currentless submodule individual voltage balancing control for modular multilevel converters
The capacitor voltage balancing is one of the most important issues for safe and reliable
operation of the modular multilevel converters (MMC). This article proposes a currentless …
operation of the modular multilevel converters (MMC). This article proposes a currentless …
Switching frequency effects on the efficiency and harmonic distortion in a three-phase five-level CHBMI prototype with multicarrier PWM schemes: Experimental …
The current climatic scenario requires the use of innovative solutions to increase the
production of electricity from renewable energy sources. Multilevel Power Inverters are a …
production of electricity from renewable energy sources. Multilevel Power Inverters are a …
A critical review of modular multilevel converter configurations and submodule topologies from DC fault blocking and ride-through capabilities viewpoints for HVDC …
Modular multilevel converters (MMCs) based on half-bridge submodules (HBSMs) are
unable to prevent the AC side contribution to DC side fault currents, thus necessitating circuit …
unable to prevent the AC side contribution to DC side fault currents, thus necessitating circuit …
Comparative evaluation of voltage source converters with silicon carbide semiconductor devices for high-voltage direct current transmission
Recent advancements in silicon carbide (SiC) power semiconductor technology enable
developments in the high-power sector, eg, high-voltage-direct-current (HVdc) converters for …
developments in the high-power sector, eg, high-voltage-direct-current (HVdc) converters for …