Results 81 to 90 of about 489 (168)

Voltage Stability Bifurcation Analysis for AC/DC Systems with VSC-HVDC

open access: yesAbstract and Applied Analysis, 2013
A voltage stability bifurcation analysis approach for modeling AC/DC systems with VSC-HVDC is presented. The steady power model and control modes of VSC-HVDC are briefly presented firstly.
Yanfang Wei   +4 more
doaj   +1 more source

Coordinated Strategy to Improve Post-Fault Characteristics of Hybrid Multi-Infeed HVDC Transmission System

open access: yesEnergies
The characteristics of the dynamic reactive power demand of a hybrid multi-infeed HVDC transmission system during the post-fault recovery period are analyzed and a coordinated control strategy to improve the fault recovery characteristics of the hybrid ...
Bingjie Jin   +7 more
doaj   +1 more source

Analysis of multi-infeed receiving AC system with incompletely segmented VSC-HVDC

open access: yesGlobal Energy Interconnection
When multiple LCC-HVDC transmission lines are densely fed into a receiving AC system, voltage dips can easily propagate in the power system, resulting in multiple LCC commutation failures simultaneously.
You Zuo   +3 more
doaj   +1 more source

Droop Frequency Limit Control and Its Parameter Optimization in VSC-HVDC Interconnected Power Grids

open access: yesEnergies
With the gradual emergence of trends such as the asynchronous interconnection of power grids and the increasing penetration of renewable energy, the issues of ultra-low-frequency oscillations and low-frequency stability in power grids have become more ...
Han Jiang   +3 more
doaj   +1 more source

Grid Synchronisation of VSC-HVDC System

open access: yes, 2015
This thesis investigates issues affecting grid synchronisation of VSC-HVDC systems with particular regard to, but not limited to, offshore wind power generation during the complex but potentially serious behaviours following solar storms. An averaged value model (AVM) for the contemporary modular multilevel converter (MMC) based VSC-HVDC system is ...
openaire   +1 more source

Impact of short-duration voltage variations on VSC-HVDC performance. [PDF]

open access: yesSci Rep, 2023
Mostafa RA   +3 more
europepmc   +1 more source

Analysis of Hybrid LCC-VSC HVDC Transmission Systems

open access: yes, 2018
High Voltage Direct Current(HVDC) is widely considered as an efficient and economical option for long distances transmission of electric power compared to ac transmission. Conventional HVDC transmission is based on line commutated converter(LCC). Although this mature technology has large transmission capacity, it still has some disadvantages such as ...
openaire   +2 more sources

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