Results 21 to 30 of about 146,756 (305)

Unified reference controller for flexible primary control and inertia sharing in multi-terminal voltage source converter-HVDC grids [PDF]

open access: yes, 2016
Multi-terminal dc (MTDC) grids are expected to be built and experience rapid expansion in the near future as they have emerged as a competitive solution for transmitting offshore wind generation and overlaying their ac counterpart. The concept of inertia
Candela García, José Ignacio   +4 more
core   +2 more sources

Three-level Back-to-Back Converter Simulation for Wind Turbine Energy Source [PDF]

open access: yes, 2013
This paper presents the simulation of three-level back-to-back converter for wind turbine energy source. For this paper, it will be focused on wind turbine energy source and determined the voltage from wind turbine energy source being regular value.
Ding, Guo-Qiang   +12 more
core   +2 more sources

Multi‐pole voltage source converter HVDC transmission systems [PDF]

open access: yesIET Generation, Transmission & Distribution, 2016
This study connects several modular multilevel converters to form multi‐pole voltage source converter high‐voltage dc (VSC‐HVDC) links which are suited for bulk power evacuation, with increased resiliency to ac and dc network faults. The proposed arrangements resemble symmetrical and asymmetrical HVDC links that can be used for bulk power transfer over
Ased, Grain Philip, Williams, Barry W.
openaire   +2 more sources

A quasi-Z-source boost DC-DC converter

open access: yesGong-kuang zidonghua, 2017
For problems of traditional boost converter including limited boost ability and high capacitor voltage stress, a boost DC-DC converter was proposed which used two quasi-Z-source networks in cascade.
FANG Xupeng   +4 more
doaj   +1 more source

Analysis of Switched Inductor Three-level DC/DC Converter [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2018
A non-isolated DC/DC converter with high transfer gain is proposed in this paper. The presented converter consists of the switched inductor and three-level converters. The DC/DC power converter is three-level boost converter to convert the output voltage
E. Salari, M. R. Banaei, A. Ajami
doaj   +1 more source

Z-source converter integrated dc electric spring for power quality improvement in dc microgrid

open access: yesEngineering Science and Technology, an International Journal, 2021
Increasing penetration of renewable energy sources reveals the concept of dc microgrid which has the advantages of low cost and low losses because of the elimination of the AC/DC conversion processes. The most frequently encountered power quality problem
Murat Mustafa Savrun
doaj   +1 more source

Optimization of Impedance-Source Galvanically Isolated DC–DC Converters With Reduced Number of Switches

open access: yesIEEE Access, 2022
In this study, a new type of Z-source converter comprising galvanic isolation transformers is introduced based on classical non-isolated Z-source converters, which are promising devices for renewable applications. Compared to the typology of conventional
Naser Fakhri   +7 more
doaj   +1 more source

Multi-terminal HVDC grids with inertia mimicry capability [PDF]

open access: yes, 2016
The high-voltage multi-terminal dc (MTDC) systems are foreseen to experience an important development in the next years. Currently, they have appeared to be a prevailing technical and economical solution for harvesting offshore wind energy. In this study,
Gharehpetian, Gevorg B.   +4 more
core   +2 more sources

Reactive Power Synchronization Method for Voltage-Sourced Converters [PDF]

open access: yesIEEE Transactions on Sustainable Energy, 2019
There is a growing interest in the parallel operation of voltage source converters (VSCs) both in an isolated microgrid or connected to the utility grid. The most common solution in the literature for the paralellization of VSCs is the so-called droop control, which brings about a relationship between active power and frequency.
Andres Pena Asensio   +3 more
openaire   +2 more sources

Voltage Ripple Reduction in Voltage Loop of Voltage Source Converter

open access: yesInternational Journal of Power Electronics and Drive Systems (IJPEDS), 2017
In order to achieve a good dynamical response of a full-bridge AC-DC voltage source converters (VSC). The bandwidth of PI controller must be relatively wide. This leads to the voltage ripple produced in the control signal, as known that its ripple frequency has twice of the line frequency and cause the 3rd harmonic of an input current. A Ripple Voltage
Jedsada Jaroenkiattrai, Viboon Chunkag
openaire   +1 more source

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