Results 61 to 70 of about 4,243 (258)
MMC‐HVDC AC side line protection based on positive sequence fault component current ratio
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
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
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]
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
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]
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
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
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]
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
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

