Results 111 to 120 of about 7,789 (205)

Stability analysis and stabilization control of a grid-forming VSC-HVDC system

open access: yesFrontiers in Energy Research
As the penetration of the integrated intermittent and fluctuating new energy (e.g., wind and photovoltaic power) increases, the conventional grid-following voltage source converter (VSC)-based high voltage direct current (HVDC) transmission system faces ...
Yi Lu   +6 more
doaj   +1 more source

Control and Limit Enforcements for VSC Multi-Terminal HVDC in Newton Power Flow

open access: yes, 2017
This paper proposes a novel method to automatically enforce controls and limits for Voltage Source Converter (VSC) based multi-terminal HVDC in the Newton power flow iteration process.
Cui, Hantao, Li, Fangxing, Yuan, Haoyu
core   +1 more source

A VSC-HVDC-Assisted Black-Start Strategy in Bulk Power Systems a Case Study in San Diego

open access: yesIEEE Open Access Journal of Power and Energy
With the worldwide growth in deploying high-voltage direct current (HVDC) transmission systems, their ability to facilitate black-start (BS) restoration has been a research topic of interest.
Xiaofei Wang   +4 more
doaj   +1 more source

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

A Black Start Scheme Based on Modular Multilevel Control-High Voltage Direct Current

open access: yesEnergies, 2018
Modern society’s need for power and its dependence on power sources is increasing with its development. As a result the consequences of blackout accidents have become more serious. At present, only three sources can be regarded as black-start power
Zecheng Li, Guojun Tan
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

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