Results 61 to 70 of about 4,243 (258)

MMC‐HVDC AC side line protection based on positive sequence fault component current ratio

open access: yesIET Generation, Transmission & Distribution, 2023
The high‐voltage direct current (HVDC) transmission based on modular multilevel converter shows the weak feed characteristic of limited fault current amplitude when connected to the traditional AC power grid, which leads to the risk of sensitivity ...
Hanqing Huang, Zengping Wang
doaj   +1 more source

Small-Signal stability analysis of MMC-HVDC system with saturated transformer

open access: yesInternational Journal of Electrical Power & Energy Systems
Transformer saturation has a significant impact on the stability of HVDC systems. While traditional research has primarily focused on LCC-HVDC systems, studies on MMC systems remain limited. Given the anticipated dominance of MMC technology in the future,
Hanwen Wang   +6 more
doaj   +1 more source

Flexible switching method of control strategy for MMC-HVDC converter based on AC power grid strength

open access: yesFrontiers in Electronics
Modular Multilevel Converter based High Voltage Direct Current (MMC-HVDC) has been widely used in the large-scale transmission of renewable energy sources (RESs).
Maolan Peng   +5 more
doaj   +1 more source

A novel multi-modular series HVDC tap [PDF]

open access: yes, 2017
Tapping energy from a HVDC transmission line to serve small remote communities has been considered by researchers and HVDC manufacturers since the 1960s.
Farr, Ewan   +4 more
core   +1 more source

DC Fault Protection Algorithms of MMC-HVDC Lines

open access: green
This report explores fault protection algorithms for Modular Multilevel Converter(MMC) based High Voltage Direct Current (HVDC) grids, focusing on detailedfault analysis and methodologies for handling DC faults. DC faults in HVDCsystems can lead to severe disruptions, making robust protection mechanismsessential.
Durjoy Adhikary Adhikary
openalex   +2 more sources

Accelerated switching function model of hybrid MMCs for HVDC system simulation [PDF]

open access: yes, 2017
An accelerated switching function model (SFM) of the hybrid modular multilevel converter comprising both full-bridge (FB) and half-bridge (HB) submodules (SMs) in each arm is presented for HVDC system simulation, where auxiliary circuits are adopted to ...
Guo, Deyang, Li, Rui, Xu, Lie
core   +1 more source

Series Connection of LCC and Full Bridge MMC With DC Fault Ride‐Through Capability for Lightweight HVDC Transmission

open access: yesEngineering Reports, Volume 8, Issue 4, April 2026.
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang   +7 more
wiley   +1 more source

Modelling and simulation analysis of MMC‐HVDC system based on transient energy flow

open access: yesIET Renewable Power Generation, 2023
In the high voltage direct current (HVDC) transmission system composed of modular multilevel converters (MMC), considering the distribution of transient energy flow (TEF) contributes to the transient modelling and fault characteristic analysis when dc ...
Jun Yan   +4 more
doaj   +1 more source

Full-bridge modular multilevel converter (FB-MMC) with extended control range [PDF]

open access: yes, 2015
This paper presents an attractive control scheme that decouples cell capacitor voltage regulation of the FB-MMC from the dc link voltage regulation. This is achieved by manipulating both ac and dc components of modulation functions.
Adam, Grain Philip   +4 more
core   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

open access: yesHigh Voltage, Volume 11, Issue 2, Page 317-344, April 2026.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi   +3 more
wiley   +1 more source

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